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                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007
 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.
                            Preamble
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                       TERMS AND CONDITIONS
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  Notwithstanding any other provision of this License, you have
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                     END OF TERMS AND CONDITIONS
            How to Apply These Terms to Your New Programs
  If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.
  To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Also add information on how to contact you by electronic and paper mail.
  If the program does terminal interaction, make it output a short
 notice like this when it starts in an interactive mode:
    <program>  Copyright (C) <year>  <name of author>
    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.
 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, your program's commands
 might be different; for a GUI interface, you would use an "about box".
  You should also get your employer (if you work as a programmer) or school,
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU GPL, see
 <https://www.gnu.org/licenses/>.
  The GNU General Public License does not permit incorporating your program
 into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
 <https://www.gnu.org/licenses/why-not-lgpl.html>.
@@ -0,0 +1,399 @@
 # A1 Swap Mod Packer
 A1 Swap Mod Packer is an open-source implementation 3MF packer for Bambu Lab A1 SwapMod workflows.
 It takes one or more A1-sliced `.3mf` files, repeats their plate G-code according to copy counts, inserts an external SwapMod ejection/swap G-code block, and writes a new packed `.3mf` that can be sent to the printer.
 ## Notes
 - This project contains no proprietary code. All functionalities were implemented independently by comparing the states before and after 3MF file generation.
 - Currently, this project has only been tested and verified on Windows 10. 
 - Always test a generated file on a safe/simple print before using it in production.
 ## Key features
 - GUI for drag-and-drop batch packing.
 - CLI for repeatable automation.
 - Multiple input `.3mf` files.
 - Per-file copy count.
 - Automatic time and filament summary from `Metadata/slice_info.config`.
 - External SwapMod G-code template folder.
 - Editable G-code patch file.
 - Optional remaining-time plate-number encoding through `M73 R...`.
 - Combined mode: all input rows become one packed 3MF.
 - Individual batch mode: every input row becomes its own packed 3MF.
 - GUI settings are saved to the program folder as `settings.json`.
 ## Installation for source use
 Python 3.10 or newer is recommended.    
 Install dependency:
 ```bash
 pip install -r requirements.txt
 ```
 Run the GUI:
 ```bash
 python -m a1_swap_mod_packer.gui
 ```
 or  
 ```bash
 python run_gui.py
 ```
 Run the CLI:
 ```bash
 python -m a1_swap_mod_packer.cli --help
 ```
 or
 ```bash
 python run_cli.py
 ```
 ## Swap G-code templates
 The GUI automatically scans this fixed folder:
 ```text
 swap_gcode/
 ```
 Plain UTF-8 G-code files are read directly.
 In the GUI:
 1. Put template files in `swap_gcode/`.
 2. Click **Refresh** next to **Swap G-code**.
 3. Select the template from the dropdown.
 ## Editable G-code patches
 The GUI and CLI read the fixed patch file:
 ```text
 gcode_patches.ini
 ```
 Default rule:
 ```ini
 [patch.a1_start_y]
 enabled = true
 flag = G0 X128 F30000
 find = G0 Y254 F3000
 replace = G0 Y250 F3000 ; Patched
 max_count = 1
 ```
 Meaning:
 - Search after the optional `flag` line.
 - Replace the first matching `find` line with `replace`.
 - Apply at most `max_count` replacements.
 You can disable this in the GUI with **G-code patches**, or edit the INI file and keep the option enabled.
 The swap insertion marker can also be edited:
 ```ini
 [swap]
 insert_before_marker = ;=====printer finish  sound=========
 ```
 ## GUI guide
 ### Input 3MF files
 The input table supports:
 - **Add 3MF**: choose one or more `.3mf` files.
 - Drag and drop `.3mf` files into the table.
 - Drag and drop a folder into the table. The GUI adds top-level `.3mf` files from that folder.
 - **Remove**: remove selected rows.
 - **Remove All**: clear the full input list.
 - **Move Up / Move Down**: change input order.
 - **Apply Default Copies to Selected**: overwrite selected rows with the current default copy count.
 Columns:
 - **3MF path**: source file path.
 - **Copies**: how many times this source should be repeated.
 - **Time**: estimated print time multiplied by copies.
 - **Filament**: estimated filament multiplied by copies.
 The time and filament values are read from:
 ```text
 Metadata/slice_info.config
 ```
 If the source 3MF lacks this metadata, the GUI shows `Unknown`.
 The summary line under the input list shows the total plate count, estimated time, and filament for the current table.
 ### Build 3MF button
 The **Build 3MF** button is placed below the input list on the right side for fast batch operation.
 In normal combined mode, one click creates one output 3MF containing all input rows.
 In individual batch mode, one click creates one output 3MF per input row.
 ### Swap G-code
 Selects the ejection/swap G-code block inserted into each repeated plate.
 The dropdown is generated from files in:
 ```text
 swap_gcode/
 ```
 Buttons:
 - **Refresh**: rescan the folder.
 - **Open Folder**: open the template folder.
 ### Default copies for new inputs
 Sets the default copy count applied to newly added or dragged-in files.
 This does not automatically change existing rows. Use **Apply Default Copies to Selected** for existing rows.
 ### Bed cooldown
 Controls whether the tool inserts a bed temperature wait before the SwapMod G-code block.
 Enabled example:
 ```gcode
 M190 S45
 ```
 If disabled, no `M190` line is added by the packer.
 ### Wait after ejection
 Adds a dwell after the SwapMod G-code block.
 Example for 45 seconds:
 ```gcode
 G4 P45000
 ```
 ### Remaining-time plate number
 When enabled, the packer offsets `M73 ... R...` remaining-time values by:
 ```text
 plate_number × 100 hours × 60 minutes
 ```
 This allows the A1 remaining-time hour hundreds digit to display the current plate number.
 Example concept:
 - Plate 1: +6000 minutes
 - Plate 2: +12000 minutes
 - Plate 3: +18000 minutes
 ### Final swap
 When enabled, the swap/ejection block is also inserted after the final repeated plate.
 When disabled, the final repeated plate ends normally without running the swap G-code block.
 ### G-code patches
 Applies rules from:
 ```text
 gcode_patches.ini
 ```
 The **Open Config** button opens that fixed file for editing.
 ### 3MF metadata
 Options:
 - **Keep source prediction and weight**  
  Leaves `slice_info.config` prediction and weight values from the base 3MF unchanged. This best matches the observed vendor packer behavior.
 - **Sum prediction and filament**  
  Updates the first plate metadata using the sum of all repeated source plates. This is more logically correct for statistics, but may differ from the vendor software.
 ### Batch mode
 #### Combined mode
 Default behavior.
 All input rows are packed into one output file.
 Example:
 ```text
 A.3mf copies 2
 B.3mf copies 3
 ```
 Output:
 ```text
 one packed 3MF containing A, A, B, B, B
 ```
 #### Individual batch mode
 When enabled, the GUI shows an explanation popup.
 Every input row is treated as an independent build.
 Example:
 ```text
 A.3mf copies 5
 B.3mf copies 5
 C.3mf copies 5
 ```
 Output:
 ```text
 5 Plates - A.3mf
 5 Plates - B.3mf
 5 Plates - C.3mf
 ```
 This is intended for quickly converting a large batch of independent single-plate 3MF files into multi-copy SwapMod packs.
 It does **not** combine all inputs into one file.
 ### Input handling
 Options:
 - **Skip duplicate file paths when adding inputs**  
  Prevents accidentally adding the same path multiple times.
 - **Clear input list after successful build**  
  Clears the table after a successful build. In individual batch mode, the list is cleared only if all outputs are built successfully.
 ### Output directory
 If this field is empty:
 - Combined mode writes next to the first input file.
 - Individual batch mode writes each output next to its own input file.
 If a directory is selected, all outputs go to that directory.
 ### Output filename rule
 Default:
 ```text
 {plates} Plates - {sources}.3mf
 ```
 Click the `?` button next to the rule field to show token help.
 Available tokens:
 | Token | Meaning |
 |---|---|
 | `{source}` | First input file stem, without `.3mf` |
 | `{sources}` | Source summary. One source uses its stem; multiple sources become `first_source_and_N_more` |
 | `{plates}` | Total plate count in this output |
 | `{copies}` | Total copy count in this output |
 | `{date}` | Current date as `YYYYMMDD` |
 | `{time}` | Current time as `HHMMSS` |
 In individual batch mode, tokens are calculated per input row.
 Examples:
 ```text
 {plates} Plates - {sources}.3mf
 SwapMod - {source} - x{copies}.3mf
 {date}_{time}_{source}.3mf
 ```
 ## GUI settings
 The GUI writes settings to the program folder:
 ```text
 settings.json
 ```
 This is intentional so a portable extracted folder or future packaged `.exe` build keeps its options next to the application.
 Saved options include:
 - Selected Swap G-code file.
 - Default copies.
 - Bed cooldown settings.
 - Wait after ejection.
 - Remaining-time plate-number switch.
 - Final swap switch.
 - G-code patch switch.
 - Metadata mode.
 - Individual batch mode.
 - Input handling options.
 - Output directory.
 - Output filename rule.
 ## CLI examples
 Build one source with five copies:
 ```bash
 python -m a1_swap_mod_packer.cli build \
  --item "SC05720_01.gcode(1).3mf" 5 \
  --swap-gcode "a1_swap.gcode" \
  --cool-bed 45 \
  --wait 45 \
  --show-plate-number \
  -o "5 Plates - SC05720_01.gcode(1).3mf"
 ```
 Build multiple sources into one output:
 ```bash
 python -m a1_swap_mod_packer.cli build \
  --item "A.3mf" 2 \
  --item "B.3mf" 3 \
  --swap-gcode "a1_swap.gcode" \
  -o "5 Plates - A_and_B.3mf"
 ```
 Use summed metadata instead of source metadata:
 ```bash
 python -m a1_swap_mod_packer.cli build \
  --item "A.3mf" 5 \
  --swap-gcode "a1_swap.gcode" \
  --metadata-mode sum \
  -o "5 Plates - A.3mf"
 ```
 Disable editable G-code patches:
 ```bash
 python -m a1_swap_mod_packer.cli build \
  --item "A.3mf" 5 \
  --swap-gcode "a1_swap.gcode" \
  --no-gcode-patches \
  -o "5 Plates - A.3mf"
 ```
@@ -0,0 +1,2 @@
 __version__ = "0.4.0"
 APP_NAME = "A1 Swap Mod Packer"
@@ -0,0 +1,16 @@
 from __future__ import annotations
 import re
 import zipfile
 GCODE_MEMBER_RE = re.compile(r"^Metadata/plate_(\d+)\.gcode$")
 MD5_MEMBER_RE = re.compile(r"^Metadata/plate_(\d+)\.gcode\.md5$")
 def list_gcode_members(archive: zipfile.ZipFile) -> list[str]:
    members: list[tuple[int, str]] = []
    for name in archive.namelist():
        match = GCODE_MEMBER_RE.match(name)
        if match:
            members.append((int(match.group(1)), name))
    return [name for _, name in sorted(members)]
@@ -0,0 +1,177 @@
 from __future__ import annotations
 import hashlib
 import os
 import shutil
 import tempfile
 import zipfile
 from pathlib import Path
 from .archive import GCODE_MEMBER_RE, MD5_MEMBER_RE, list_gcode_members
 from .gcode import (
    apply_line_ending,
    apply_plate_number_offset,
    build_swap_block,
    insert_swap_block,
    normalize_newlines,
    read_swap_gcode_file,
    resolve_swap_gcode_path,
 )
 from .metadata import read_filament_metadata, read_slice_plate_metadata, safe_float, update_first_slice_info
 from .models import BuildOptions, BuildResult, GcodePatchConfig, PlateJob, PlateSource
 from .patches import apply_gcode_patches, parse_patch_config
 try:
    from PIL import Image, ImageDraw, ImageFont
 except Exception:  # pragma: no cover
    Image = None
    ImageDraw = None
    ImageFont = None
 def load_plate_sources(job: PlateJob) -> list[PlateSource]:
    if job.copies < 1:
        raise ValueError(f"Invalid copy count for {job.source_3mf}: {job.copies}")
    with zipfile.ZipFile(job.source_3mf, "r") as archive:
        members = list_gcode_members(archive)
        if not members:
            raise ValueError(f"No Metadata/plate_N.gcode member was found in {job.source_3mf}")
        plate_metadata = read_slice_plate_metadata(archive)
        filament_metadata = read_filament_metadata(archive)
        sources: list[PlateSource] = []
        for member in members:
            match = GCODE_MEMBER_RE.match(member)
            plate_index = int(match.group(1)) if match else 1
            raw = archive.read(member)
            text = raw.decode("utf-8-sig", errors="replace")
            metadata = plate_metadata.get(plate_index, {})
            filament = filament_metadata.get(plate_index, {})
            weight = safe_float(metadata.get("weight"))
            used_g = safe_float(filament.get("used_g"))
            sources.append(
                PlateSource(
                    source_3mf=job.source_3mf,
                    member_name=member,
                    gcode_text=text,
                    prediction_seconds=safe_float(metadata.get("prediction")),
                    weight_grams=weight if weight is not None else used_g,
                    filament_used_m=safe_float(filament.get("used_m")),
                    filament_used_g=used_g if used_g is not None else weight,
                )
            )
        return sources
 def expand_jobs(jobs: list[PlateJob]) -> list[PlateSource]:
    expanded: list[PlateSource] = []
    for job in jobs:
        sources = load_plate_sources(job)
        for _ in range(job.copies):
            expanded.extend(sources)
    if not expanded:
        raise ValueError("No input plates were provided.")
    return expanded
 def process_plate_gcode(
    source: PlateSource,
    plate_number: int,
    total_plates: int,
    options: BuildOptions,
    swap_gcode_text: str,
    patch_config: GcodePatchConfig,
 ) -> str:
    text = normalize_newlines(source.gcode_text)
    if options.apply_gcode_patches:
        text = apply_gcode_patches(text, patch_config)
    if options.show_plate_number:
        text = apply_plate_number_offset(text, plate_number)
    should_swap = options.swap_after_final or plate_number < total_plates
    if should_swap:
        swap_block = build_swap_block(swap_gcode_text, options.cool_bed_temp, options.wait_after_eject_seconds)
        text = insert_swap_block(text, swap_block, patch_config.insert_before_marker)
    return text.rstrip("\n") + "\n"
 def update_preview_label(png_bytes: bytes, label: str, small: bool = False) -> bytes:
    if Image is None or ImageDraw is None:
        return png_bytes
    import io
    try:
        image = Image.open(io.BytesIO(png_bytes)).convert("RGBA")
    except Exception:
        return png_bytes
    draw = ImageDraw.Draw(image)
    size = max(16, image.width // (12 if small else 8))
    font = None
    for font_path in (
        Path(os.environ.get("WINDIR", "")) / "Fonts" / "arialbd.ttf",
        Path("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf"),
        Path("/System/Library/Fonts/Supplemental/Arial Bold.ttf"),
    ):
        if font_path.exists() and ImageFont is not None:
            try:
                font = ImageFont.truetype(str(font_path), size)
                break
            except Exception:
                font = None
    if font is None and ImageFont is not None:
        font = ImageFont.load_default()
    margin = max(8, image.width // 24)
    text_bbox = draw.textbbox((0, 0), label, font=font)
    x = margin
    y = image.height - margin - (text_bbox[3] - text_bbox[1])
    draw.text((x, y), label, font=font, fill=(0, 255, 0, 255))
    output = io.BytesIO()
    image.save(output, format="PNG")
    return output.getvalue()
 def write_output_3mf(base_3mf: Path, output_3mf: Path, gcode_bytes: bytes, sources: list[PlateSource], options: BuildOptions) -> str:
    md5 = hashlib.md5(gcode_bytes).hexdigest()
    with zipfile.ZipFile(base_3mf, "r") as src, zipfile.ZipFile(output_3mf, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=1) as dst:
        for item in src.infolist():
            name = item.filename
            if GCODE_MEMBER_RE.match(name) or MD5_MEMBER_RE.match(name):
                continue
            data = src.read(name)
            if name == "Metadata/slice_info.config":
                data = update_first_slice_info(data, sources, options)
            elif options.add_preview_label and name in {"Metadata/plate_1.png", "Metadata/plate_1_small.png"}:
                data = update_preview_label(data, f"{len(sources)} plates", small=name.endswith("_small.png"))
            dst.writestr(item, data)
        dst.writestr("Metadata/plate_1.gcode", gcode_bytes)
        dst.writestr("Metadata/plate_1.gcode.md5", md5)
    return md5
 def build_packed_3mf(jobs: list[PlateJob], options: BuildOptions) -> BuildResult:
    sources = expand_jobs(jobs)
    swap_gcode_path = resolve_swap_gcode_path(options.swap_gcode, options.swap_gcode_dir)
    swap_gcode_text = read_swap_gcode_file(swap_gcode_path)
    patch_config = parse_patch_config() if options.apply_gcode_patches else GcodePatchConfig(rules=())
    processed: list[str] = []
    for plate_number, source in enumerate(sources, start=1):
        processed.append(process_plate_gcode(source, plate_number, len(sources), options, swap_gcode_text, patch_config))
    final_gcode = "\n".join(item.rstrip("\n") for item in processed) + "\n"
    gcode_bytes = apply_line_ending(final_gcode, options.line_ending)
    output_3mf = options.output_3mf
    output_3mf.parent.mkdir(parents=True, exist_ok=True)
    with tempfile.NamedTemporaryFile(delete=False, suffix=".3mf", dir=str(output_3mf.parent)) as temp_file:
        temp_path = Path(temp_file.name)
    try:
        md5 = write_output_3mf(sources[0].source_3mf, temp_path, gcode_bytes, sources, options)
        shutil.move(str(temp_path), str(output_3mf))
    finally:
        if temp_path.exists():
            temp_path.unlink(missing_ok=True)
    total_prediction = sum(value for value in (source.prediction_seconds for source in sources) if value is not None)
    total_weight = sum(value for value in (source.weight_grams for source in sources) if value is not None)
    return BuildResult(
        output_3mf=output_3mf,
        plate_count=len(sources),
        total_prediction_seconds=total_prediction if total_prediction > 0 else None,
        total_weight_grams=total_weight if total_weight > 0 else None,
        gcode_md5=md5,
    )
@@ -0,0 +1,111 @@
 from __future__ import annotations
 import argparse
 import sys
 from pathlib import Path
 from . import APP_NAME
 from .core import (
    BuildOptions,
    PlateJob,
    build_packed_3mf,
    list_swap_gcode_files,
 )
 from .paths import default_patch_config_path, default_swap_gcode_dir
 def parse_item(values: list[str]) -> PlateJob:
    if len(values) != 2:
        raise argparse.ArgumentTypeError("Each --item needs a path and a copy count.")
    path = Path(values[0])
    try:
        copies = int(values[1])
    except ValueError as exc:
        raise argparse.ArgumentTypeError(f"Invalid copy count: {values[1]}") from exc
    return PlateJob(path, copies)
 def build_command(args: argparse.Namespace) -> int:
    jobs: list[PlateJob] = []
    for item in args.item or []:
        jobs.append(parse_item(item))
    for input_path in args.inputs or []:
        jobs.append(PlateJob(Path(input_path), args.copies))
    if not jobs:
        raise SystemExit("No input 3MF file was provided.")
    cool_bed_temp = None if args.no_bed_cooldown else args.cool_bed
    options = BuildOptions(
        swap_gcode=args.swap_gcode,
        output_3mf=Path(args.output),
        cool_bed_temp=cool_bed_temp,
        wait_after_eject_seconds=args.wait,
        show_plate_number=args.show_plate_number,
        swap_after_final=not args.no_swap_after_final,
        metadata_mode=args.metadata_mode,
        line_ending=args.line_ending,
        add_preview_label=not args.no_preview_label,
        apply_gcode_patches=not args.no_gcode_patches,
        swap_gcode_dir=Path(args.swap_gcode_dir) if args.swap_gcode_dir else None,
    )
    result = build_packed_3mf(jobs, options)
    print(f"Output: {result.output_3mf}")
    print(f"Plates: {result.plate_count}")
    print(f"G-code MD5: {result.gcode_md5}")
    if result.total_prediction_seconds is not None:
        print(f"Source print time: {int(result.total_prediction_seconds)} seconds")
    if result.total_weight_grams is not None:
        print(f"Source filament weight: {result.total_weight_grams:.2f} g")
    return 0
 def list_swap_gcode_command(args: argparse.Namespace) -> int:
    directory = Path(args.swap_gcode_dir) if args.swap_gcode_dir else default_swap_gcode_dir()
    files = list_swap_gcode_files(directory)
    if not files:
        print(f"No swap G-code files found in: {directory}")
        return 0
    for path in files:
        print(path.name)
    return 0
 def create_parser() -> argparse.ArgumentParser:
    parser = argparse.ArgumentParser(prog="a1-swap-mod-packer", description="Pack repeated Bambu A1 SwapMod plates into one 3MF job.")
    subparsers = parser.add_subparsers(dest="command", required=True)
    build = subparsers.add_parser("build", help="Build a packed 3MF file.")
    build.add_argument("inputs", nargs="*", help="Input 3MF files. Use --copies for the same copy count on all of them.")
    build.add_argument("--item", nargs=2, action="append", metavar=("PATH", "COPIES"), help="Add an input 3MF with its own copy count. Can be used multiple times.")
    build.add_argument("-o", "--output", required=True, help="Output 3MF path.")
    build.add_argument("--swap-gcode", required=True, help="Swap G-code file name in swap_gcode, or an explicit file path.")
    build.add_argument("--swap-gcode-dir", default=None, help=f"Template directory. Default: {default_swap_gcode_dir()}")
    build.add_argument("--copies", type=int, default=1, help="Copy count for positional input files.")
    build.add_argument("--cool-bed", type=int, default=45, help="Bed temperature to wait for before running the swap G-code.")
    build.add_argument("--no-bed-cooldown", action="store_true", help="Do not insert M190 before the swap code.")
    build.add_argument("--wait", type=int, default=45, help="Seconds to wait after plate ejection.")
    build.add_argument("--show-plate-number", action="store_true", help="Add 100 hours per plate number to M73 R values.")
    build.add_argument("--no-swap-after-final", action="store_true", help="Do not run the swap G-code after the last plate.")
    build.add_argument("--metadata-mode", choices=("source", "sum"), default="source", help="How to write slice_info prediction and weight.")
    build.add_argument("--line-ending", choices=("lf", "crlf"), default="crlf", help="Line ending for the generated G-code.")
    build.add_argument("--no-preview-label", action="store_true", help="Do not add a plate-count label to the first preview image.")
    build.add_argument("--no-gcode-patches", action="store_true", help=f"Do not apply editable patches from {default_patch_config_path()}.")
    build.set_defaults(func=build_command)
    list_cmd = subparsers.add_parser("list-swap-gcode", help="List files from the swap_gcode directory.")
    list_cmd.add_argument("--swap-gcode-dir", default=None, help=f"Template directory. Default: {default_swap_gcode_dir()}")
    list_cmd.set_defaults(func=list_swap_gcode_command)
    return parser
 def main(argv: list[str] | None = None) -> int:
    parser = create_parser()
    args = parser.parse_args(argv)
    try:
        return int(args.func(args))
    except Exception as exc:
        print(f"Error: {exc}", file=sys.stderr)
        return 1
 if __name__ == "__main__":
    raise SystemExit(main())
@@ -0,0 +1,110 @@
 from __future__ import annotations
 from .archive import GCODE_MEMBER_RE, MD5_MEMBER_RE, list_gcode_members
 from .builder import (
    build_packed_3mf,
    expand_jobs,
    load_plate_sources,
    process_plate_gcode,
    update_preview_label,
    write_output_3mf,
 )
 from .gcode import (
    M73_RE,
    apply_line_ending,
    apply_plate_number_offset,
    build_swap_block,
    format_duration,
    format_filament,
    insert_swap_block,
    list_swap_gcode_files,
    normalize_newlines,
    read_swap_gcode_file,
    resolve_swap_gcode_path,
 )
 from .metadata import (
    multiply_summary,
    read_3mf_summary,
    read_filament_metadata,
    read_slice_plate_metadata,
    safe_float,
    summarize_jobs,
    update_first_slice_info,
 )
 from .models import (
    DEFAULT_INSERT_BEFORE_MARKER,
    BuildOptions,
    BuildResult,
    BuildSummary,
    GcodePatchConfig,
    GcodePatchRule,
    LineEnding,
    MetadataMode,
    PlateJob,
    PlateSource,
    ThreeMfSummary,
 )
 from .patches import apply_gcode_patches, apply_patch_rule, parse_bool, parse_patch_config
 from .planning import (
    DEFAULT_OUTPUT_PATTERN,
    OutputNamingOptions,
    OutputSummary,
    make_unique_for_run,
    resolve_output_path,
    sanitize_filename,
    summarize_jobs_for_output,
    three_mf_summary_from_mapping,
 )
 __all__ = [
    "DEFAULT_INSERT_BEFORE_MARKER",
    "DEFAULT_OUTPUT_PATTERN",
    "GCODE_MEMBER_RE",
    "M73_RE",
    "MD5_MEMBER_RE",
    "BuildOptions",
    "BuildResult",
    "BuildSummary",
    "GcodePatchConfig",
    "GcodePatchRule",
    "LineEnding",
    "MetadataMode",
    "OutputNamingOptions",
    "OutputSummary",
    "PlateJob",
    "PlateSource",
    "ThreeMfSummary",
    "apply_gcode_patches",
    "apply_line_ending",
    "apply_patch_rule",
    "apply_plate_number_offset",
    "build_packed_3mf",
    "build_swap_block",
    "expand_jobs",
    "format_duration",
    "format_filament",
    "insert_swap_block",
    "list_gcode_members",
    "list_swap_gcode_files",
    "load_plate_sources",
    "make_unique_for_run",
    "multiply_summary",
    "normalize_newlines",
    "parse_bool",
    "parse_patch_config",
    "process_plate_gcode",
    "read_3mf_summary",
    "read_filament_metadata",
    "read_slice_plate_metadata",
    "read_swap_gcode_file",
    "resolve_output_path",
    "resolve_swap_gcode_path",
    "safe_float",
    "sanitize_filename",
    "summarize_jobs",
    "summarize_jobs_for_output",
    "three_mf_summary_from_mapping",
    "update_first_slice_info",
    "update_preview_label",
    "write_output_3mf",
 ]
@@ -0,0 +1,106 @@
 from __future__ import annotations
 import re
 from pathlib import Path
 from .models import DEFAULT_INSERT_BEFORE_MARKER, LineEnding
 from .paths import default_swap_gcode_dir
 M73_RE = re.compile(r"^(M73\s+P\d+\s+R)(\d+)(.*)$", re.MULTILINE)
 def normalize_newlines(text: str) -> str:
    return text.replace("\r\n", "\n").replace("\r", "\n")
 def apply_line_ending(text: str, line_ending: LineEnding) -> bytes:
    normalized = normalize_newlines(text)
    if line_ending == "crlf":
        normalized = normalized.replace("\n", "\r\n")
    return normalized.encode("utf-8")
 def read_swap_gcode_file(path: Path) -> str:
    return path.read_text(encoding="utf-8-sig", errors="replace")
 def resolve_swap_gcode_path(value: Path | str, swap_gcode_dir: Path | None = None) -> Path:
    raw = Path(value)
    if raw.exists():
        return raw
    search_dir = swap_gcode_dir or default_swap_gcode_dir()
    candidate = search_dir / str(value)
    if candidate.exists():
        return candidate
    if raw.suffix:
        raise FileNotFoundError(f"Swap G-code file not found: {value}")
    for suffix in (".gcode", ".nc", ".ngc", ".txt"):
        candidate = search_dir / f"{value}{suffix}"
        if candidate.exists():
            return candidate
    raise FileNotFoundError(f"Swap G-code file not found: {value}")
 def list_swap_gcode_files(directory: Path | None = None) -> list[Path]:
    root = directory or default_swap_gcode_dir()
    if not root.exists():
        return []
    allowed = {".gcode", ".nc", ".ngc", ".txt"}
    return sorted(path for path in root.iterdir() if path.is_file() and not path.name.startswith(".") and path.suffix.lower() in allowed)
 def format_duration(seconds: float | None) -> str:
    if seconds is None:
        return "Unknown"
    total = max(0, int(round(seconds)))
    hours, rem = divmod(total, 3600)
    minutes, secs = divmod(rem, 60)
    if hours:
        return f"{hours}h {minutes:02d}m"
    if minutes:
        return f"{minutes}m {secs:02d}s"
    return f"{secs}s"
 def format_filament(weight_grams: float | None, used_m: float | None = None) -> str:
    if weight_grams is None and used_m is None:
        return "Unknown"
    parts: list[str] = []
    if weight_grams is not None:
        parts.append(f"{weight_grams:.2f} g")
    if used_m is not None:
        parts.append(f"{used_m:.2f} m")
    return " / ".join(parts)
 def apply_plate_number_offset(gcode: str, plate_number: int) -> str:
    minute_offset = plate_number * 100 * 60
    def replace(match: re.Match[str]) -> str:
        return f"{match.group(1)}{int(match.group(2)) + minute_offset}{match.group(3)}"
    return M73_RE.sub(replace, gcode)
 def build_swap_block(swap_gcode: str, cool_bed_temp: int | None, wait_seconds: int) -> str:
    parts: list[str] = []
    if cool_bed_temp is not None:
        parts.append(f"M190 S{int(cool_bed_temp)}")
    parts.append(normalize_newlines(swap_gcode).rstrip("\n"))
    if wait_seconds > 0:
        parts.append(f"G4 P{int(wait_seconds) * 1000}")
    return "\n".join(part for part in parts if part) + "\n"
 def insert_swap_block(gcode: str, swap_block: str, insert_before_marker: str = DEFAULT_INSERT_BEFORE_MARKER) -> str:
    text = normalize_newlines(gcode)
    marker = insert_before_marker.strip()
    if marker:
        marker_index = text.find("\n" + marker)
        if marker_index == -1 and text.startswith(marker):
            marker_index = 0
        if marker_index != -1:
            prefix = text[: marker_index + (1 if marker_index > 0 else 0)]
            suffix = text[marker_index + (1 if marker_index > 0 else 0) :]
            return prefix + swap_block + suffix
    return text.rstrip("\n") + "\n" + swap_block
@@ -0,0 +1,833 @@
 from __future__ import annotations
 import json
 import os
 import subprocess
 import sys
 from pathlib import Path
 from typing import Any, Callable
 if sys.platform.startswith("win") and "QT_QPA_PLATFORM" not in os.environ:
    os.environ["QT_QPA_PLATFORM"] = "windows:fontengine=freetype"
 try:
    from PySide6.QtCore import QEvent, Qt, QUrl
    from PySide6.QtGui import QDragEnterEvent, QDragMoveEvent, QDropEvent, QFont
    from PySide6.QtWidgets import (
        QApplication,
        QAbstractItemView,
        QCheckBox,
        QComboBox,
        QFileDialog,
        QFormLayout,
        QGroupBox,
        QHBoxLayout,
        QHeaderView,
        QLabel,
        QLineEdit,
        QMainWindow,
        QMessageBox,
        QPushButton,
        QSpinBox,
        QTableWidget,
        QTableWidgetItem,
        QTextEdit,
        QVBoxLayout,
        QWidget,
    )
 except ImportError as exc:  # pragma: no cover
    raise SystemExit("PySide6 is required to run the GUI. Install it with: pip install PySide6") from exc
 from . import APP_NAME
 from .core import (
    BuildOptions,
    PlateJob,
    ThreeMfSummary,
    build_packed_3mf,
    format_duration,
    format_filament,
    list_swap_gcode_files,
    read_3mf_summary,
 )
 from .paths import default_patch_config_path, default_swap_gcode_dir, user_settings_path
 from .planning import (
    DEFAULT_OUTPUT_PATTERN,
    OutputNamingOptions,
    OutputSummary,
    make_unique_for_run,
    resolve_output_path,
    summarize_jobs_for_output,
    three_mf_summary_from_mapping,
 )
 SUMMARY_ROLE = Qt.UserRole + 100
 class DropTableWidget(QTableWidget):
    def __init__(self, on_files_dropped: Callable[[list[Path]], None], parent: QWidget | None = None) -> None:
        super().__init__(parent)
        self.on_files_dropped = on_files_dropped
        self.setAcceptDrops(True)
        self.viewport().setAcceptDrops(True)
        self.viewport().installEventFilter(self)
        self.setDragDropMode(QAbstractItemView.DropOnly)
    def eventFilter(self, watched: object, event: QEvent) -> bool:
        if watched is self.viewport():
            if event.type() in {QEvent.DragEnter, QEvent.DragMove}:
                drag_event = event  # type: ignore[assignment]
                if self._has_3mf_urls(drag_event):
                    drag_event.acceptProposedAction()
                    return True
            if event.type() == QEvent.Drop:
                drop_event = event  # type: ignore[assignment]
                paths = self._paths_from_urls(drop_event.mimeData().urls())
                if paths:
                    self.on_files_dropped(paths)
                    drop_event.acceptProposedAction()
                    return True
        return super().eventFilter(watched, event)
    def dragEnterEvent(self, event: QDragEnterEvent) -> None:
        if self._has_3mf_urls(event):
            event.acceptProposedAction()
            return
        super().dragEnterEvent(event)
    def dragMoveEvent(self, event: QDragMoveEvent) -> None:
        if self._has_3mf_urls(event):
            event.acceptProposedAction()
            return
        super().dragMoveEvent(event)
    def dropEvent(self, event: QDropEvent) -> None:
        paths = self._paths_from_urls(event.mimeData().urls())
        if paths:
            self.on_files_dropped(paths)
            event.acceptProposedAction()
            return
        super().dropEvent(event)
    def _has_3mf_urls(self, event: Any) -> bool:
        if not event.mimeData().hasUrls():
            return False
        return bool(self._paths_from_urls(event.mimeData().urls()))
    def _paths_from_urls(self, urls: list[QUrl]) -> list[Path]:
        result: list[Path] = []
        for url in urls:
            local_path = url.toLocalFile()
            if not local_path:
                continue
            path = Path(local_path)
            if path.is_dir():
                result.extend(sorted(item for item in path.iterdir() if item.is_file() and item.suffix.lower() == ".3mf"))
            elif path.is_file() and path.suffix.lower() == ".3mf":
                result.append(path)
        return result
 class MainWindow(QMainWindow):
    def __init__(self) -> None:
        super().__init__()
        self.setWindowTitle(APP_NAME)
        self.resize(1180, 860)
        self.setAcceptDrops(True)
        self._updating_table = False
        self._loading_settings = True
        self._settings = self.load_settings()
        self.build_ui()
        self.load_swap_gcode_to_combo()
        self.restore_settings_to_ui()
        self.connect_option_signals()
        self._loading_settings = False
        self.update_total_summary()
        self.update_output_preview()
    def load_settings(self) -> dict[str, Any]:
        path = user_settings_path()
        if path.exists():
            try:
                data = json.loads(path.read_text(encoding="utf-8"))
                return data if isinstance(data, dict) else {}
            except Exception:
                return {}
        return {}
    def save_settings(self) -> None:
        path = user_settings_path()
        path.parent.mkdir(parents=True, exist_ok=True)
        path.write_text(json.dumps(self._settings, indent=2), encoding="utf-8")
    def build_ui(self) -> None:
        central = QWidget(self)
        root = QVBoxLayout(central)
        file_group = QGroupBox("Input 3MF files")
        file_layout = QVBoxLayout(file_group)
        self.table = DropTableWidget(self.add_paths)
        self.table.setColumnCount(4)
        self.table.setHorizontalHeaderLabels(["3MF path", "Copies", "Time", "Filament"])
        self.table.horizontalHeader().setSectionResizeMode(0, QHeaderView.Stretch)
        self.table.horizontalHeader().setSectionResizeMode(1, QHeaderView.ResizeToContents)
        self.table.horizontalHeader().setSectionResizeMode(2, QHeaderView.ResizeToContents)
        self.table.horizontalHeader().setSectionResizeMode(3, QHeaderView.ResizeToContents)
        self.table.setSelectionBehavior(QTableWidget.SelectRows)
        self.table.setAlternatingRowColors(True)
        self.table.setToolTip("Drag .3mf files or folders here. Folders add all top-level .3mf files.")
        self.table.itemChanged.connect(self.on_table_item_changed)
        file_layout.addWidget(self.table)
        self.total_summary_label = QLabel("Total: 0 plates | Time: Unknown | Filament: Unknown")
        file_layout.addWidget(self.total_summary_label)
        file_buttons = QHBoxLayout()
        add_button = QPushButton("Add 3MF")
        remove_button = QPushButton("Remove")
        remove_all_button = QPushButton("Remove All")
        up_button = QPushButton("Move Up")
        down_button = QPushButton("Move Down")
        apply_default_copies_button = QPushButton("Apply Default Copies to Selected")
        self.build_button = QPushButton("Build 3MF")
        self.build_button.setMinimumHeight(64)
        self.build_button.setMinimumWidth(180)
        build_font = self.build_button.font()
        build_font.setPointSize(build_font.pointSize() + 2)
        build_font.setBold(True)
        self.build_button.setFont(build_font)
        add_button.clicked.connect(self.add_files)
        remove_button.clicked.connect(self.remove_selected)
        remove_all_button.clicked.connect(self.remove_all)
        up_button.clicked.connect(lambda: self.move_selected(-1))
        down_button.clicked.connect(lambda: self.move_selected(1))
        apply_default_copies_button.clicked.connect(self.apply_default_copies_to_selected)
        self.build_button.clicked.connect(self.build_output)
        for button in (add_button, remove_button, remove_all_button, up_button, down_button, apply_default_copies_button):
            file_buttons.addWidget(button)
        file_buttons.addStretch(1)
        file_buttons.addWidget(self.build_button)
        file_layout.addLayout(file_buttons)
        root.addWidget(file_group)
        options_group = QGroupBox("Packing options")
        options_layout = QFormLayout(options_group)
        self.swap_gcode_combo = QComboBox()
        self.swap_gcode_combo.setMinimumWidth(520)
        swap_gcode_row = QHBoxLayout()
        refresh_button = QPushButton("Refresh")
        open_folder_button = QPushButton("Open Folder")
        refresh_button.clicked.connect(self.load_swap_gcode_to_combo)
        open_folder_button.clicked.connect(self.open_swap_gcode_folder)
        swap_gcode_row.addWidget(self.swap_gcode_combo, 1)
        swap_gcode_row.addWidget(refresh_button)
        swap_gcode_row.addWidget(open_folder_button)
        options_layout.addRow("Swap G-code", swap_gcode_row)
        self.default_copies_spin = QSpinBox()
        self.default_copies_spin.setRange(1, 9999)
        self.default_copies_spin.setValue(1)
        options_layout.addRow("Default copies for new inputs", self.default_copies_spin)
        self.bed_cooldown_check = QCheckBox("Wait for bed cooldown")
        self.bed_cooldown_check.setChecked(True)
        self.cool_bed_spin = QSpinBox()
        self.cool_bed_spin.setRange(0, 120)
        self.cool_bed_spin.setValue(45)
        bed_row = QHBoxLayout()
        bed_row.addWidget(self.bed_cooldown_check)
        bed_row.addWidget(self.cool_bed_spin)
        bed_row.addWidget(QLabel("°C"))
        bed_row.addStretch(1)
        options_layout.addRow("Bed cooldown", bed_row)
        self.wait_spin = QSpinBox()
        self.wait_spin.setRange(0, 3600)
        self.wait_spin.setValue(45)
        self.wait_spin.setSuffix(" s")
        options_layout.addRow("Wait after ejection", self.wait_spin)
        self.show_plate_number_check = QCheckBox("Show current plate in the hundreds digit of remaining time")
        self.show_plate_number_check.setChecked(True)
        options_layout.addRow("Remaining-time plate number", self.show_plate_number_check)
        self.swap_final_check = QCheckBox("Run swap G-code after the last plate")
        self.swap_final_check.setChecked(True)
        options_layout.addRow("Final swap", self.swap_final_check)
        self.patch_check = QCheckBox("Apply editable G-code patches from gcode_patches.ini")
        self.patch_check.setChecked(True)
        patch_row = QHBoxLayout()
        patch_path_label = QLabel(str(default_patch_config_path()))
        patch_path_label.setTextInteractionFlags(Qt.TextSelectableByMouse)
        open_patch_button = QPushButton("Open Config")
        open_patch_button.clicked.connect(self.open_patch_config)
        patch_row.addWidget(self.patch_check)
        patch_row.addWidget(patch_path_label, 1)
        patch_row.addWidget(open_patch_button)
        options_layout.addRow("G-code patches", patch_row)
        self.metadata_combo = QComboBox()
        self.metadata_combo.addItem("Keep source prediction and weight", "source")
        self.metadata_combo.addItem("Sum prediction and filament", "sum")
        options_layout.addRow("3MF metadata", self.metadata_combo)
        self.individual_batch_check = QCheckBox("Individual batch mode")
        self.individual_batch_check.setToolTip(
            "Build each input row as a separate output file, using that row's copy count."
        )
        options_layout.addRow("Batch mode", self.individual_batch_check)
        self.clear_after_build_check = QCheckBox("Clear input list after successful build")
        self.clear_after_build_check.setChecked(False)
        self.skip_duplicates_check = QCheckBox("Skip duplicate file paths when adding inputs")
        self.skip_duplicates_check.setChecked(True)
        input_handling_row = QHBoxLayout()
        input_handling_row.addWidget(self.skip_duplicates_check)
        input_handling_row.addWidget(self.clear_after_build_check)
        input_handling_row.addStretch(1)
        options_layout.addRow("Input handling", input_handling_row)
        root.addWidget(options_group)
        output_group = QGroupBox("Output")
        output_layout = QFormLayout(output_group)
        output_dir_row = QHBoxLayout()
        self.output_dir_edit = QLineEdit()
        self.output_dir_edit.setPlaceholderText("Leave empty to write next to the input file")
        browse_output_dir_button = QPushButton("Browse")
        browse_output_dir_button.clicked.connect(self.choose_output_dir)
        output_dir_row.addWidget(self.output_dir_edit, 1)
        output_dir_row.addWidget(browse_output_dir_button)
        output_layout.addRow("Output directory", output_dir_row)
        self.output_name_edit = QLineEdit(DEFAULT_OUTPUT_PATTERN)
        self.output_name_edit.setPlaceholderText("Use tokens such as {source}, {sources}, {plates}, {copies}, {date}, {time}")
        filename_rule_row = QHBoxLayout()
        output_rule_help_button = QPushButton("?")
        output_rule_help_button.setFixedWidth(34)
        output_rule_help_button.setToolTip("Show filename token help")
        output_rule_help_button.clicked.connect(self.show_output_rule_help)
        filename_rule_row.addWidget(self.output_name_edit, 1)
        filename_rule_row.addWidget(output_rule_help_button)
        output_layout.addRow("Output filename rule", filename_rule_row)
        self.output_preview_label = QLabel("Output path preview: -")
        output_layout.addRow("Preview", self.output_preview_label)
        root.addWidget(output_group)
        self.log = QTextEdit()
        self.log.setReadOnly(True)
        self.log.setMinimumHeight(130)
        root.addWidget(self.log)
        self.setCentralWidget(central)
    def connect_option_signals(self) -> None:
        self.swap_gcode_combo.currentIndexChanged.connect(self.save_current_settings)
        self.default_copies_spin.valueChanged.connect(self.save_current_settings)
        self.bed_cooldown_check.stateChanged.connect(self.save_current_settings)
        self.cool_bed_spin.valueChanged.connect(self.save_current_settings)
        self.wait_spin.valueChanged.connect(self.save_current_settings)
        self.show_plate_number_check.stateChanged.connect(self.save_current_settings)
        self.swap_final_check.stateChanged.connect(self.save_current_settings)
        self.patch_check.stateChanged.connect(self.save_current_settings)
        self.metadata_combo.currentIndexChanged.connect(self.save_current_settings)
        self.individual_batch_check.stateChanged.connect(self.on_individual_batch_toggled)
        self.clear_after_build_check.stateChanged.connect(self.save_current_settings)
        self.skip_duplicates_check.stateChanged.connect(self.save_current_settings)
        self.output_dir_edit.textChanged.connect(self.on_output_rule_changed)
        self.output_name_edit.textChanged.connect(self.on_output_rule_changed)
    def restore_settings_to_ui(self) -> None:
        options = self._settings.get("packing_options", {})
        if not isinstance(options, dict):
            return
        self.default_copies_spin.setValue(int(options.get("default_copies", 1)))
        self.bed_cooldown_check.setChecked(bool(options.get("bed_cooldown_enabled", True)))
        self.cool_bed_spin.setValue(int(options.get("cool_bed_temp", 45)))
        self.wait_spin.setValue(int(options.get("wait_after_eject_seconds", 45)))
        self.show_plate_number_check.setChecked(bool(options.get("show_plate_number", True)))
        self.swap_final_check.setChecked(bool(options.get("swap_after_final", True)))
        self.patch_check.setChecked(bool(options.get("apply_gcode_patches", True)))
        self.individual_batch_check.setChecked(bool(options.get("individual_batch_mode", False)))
        self.clear_after_build_check.setChecked(bool(options.get("clear_after_build", False)))
        self.skip_duplicates_check.setChecked(bool(options.get("skip_duplicates", True)))
        self.output_dir_edit.setText(str(options.get("output_directory", "")))
        self.output_name_edit.setText(str(options.get("output_filename_rule", DEFAULT_OUTPUT_PATTERN)))
        metadata_mode = options.get("metadata_mode", "source")
        metadata_index = self.metadata_combo.findData(metadata_mode)
        if metadata_index >= 0:
            self.metadata_combo.setCurrentIndex(metadata_index)
        swap_gcode = options.get("swap_gcode") or self._settings.get("last_swap_gcode")
        if swap_gcode:
            index = self.swap_gcode_combo.findData(str(swap_gcode))
            if index < 0:
                index = self.swap_gcode_combo.findText(Path(str(swap_gcode)).name)
            if index >= 0:
                self.swap_gcode_combo.setCurrentIndex(index)
    def collect_current_settings(self) -> dict[str, Any]:
        return {
            "swap_gcode": self.swap_gcode_combo.currentData() or "",
            "default_copies": self.default_copies_spin.value(),
            "bed_cooldown_enabled": self.bed_cooldown_check.isChecked(),
            "cool_bed_temp": self.cool_bed_spin.value(),
            "wait_after_eject_seconds": self.wait_spin.value(),
            "show_plate_number": self.show_plate_number_check.isChecked(),
            "swap_after_final": self.swap_final_check.isChecked(),
            "apply_gcode_patches": self.patch_check.isChecked(),
            "metadata_mode": self.metadata_combo.currentData(),
            "individual_batch_mode": self.individual_batch_check.isChecked(),
            "clear_after_build": self.clear_after_build_check.isChecked(),
            "skip_duplicates": self.skip_duplicates_check.isChecked(),
            "output_directory": self.output_dir_edit.text().strip(),
            "output_filename_rule": self.output_name_edit.text().strip() or DEFAULT_OUTPUT_PATTERN,
        }
    def save_current_settings(self) -> None:
        if self._loading_settings:
            return
        self._settings["packing_options"] = self.collect_current_settings()
        self._settings["last_swap_gcode"] = self.swap_gcode_combo.currentData() or ""
        self.save_settings()
    def on_output_rule_changed(self) -> None:
        self.update_output_preview()
        self.save_current_settings()
    def on_individual_batch_toggled(self, state: int) -> None:
        self.update_output_preview()
        self.save_current_settings()
        if self._loading_settings:
            return
        if state != 0:
            QMessageBox.information(
                self,
                "Individual batch mode",
                "Individual batch mode treats every input row as a separate build.\n\n"
                "Example: if you add 20 single-plate 3MF files and set copies to 5, "
                "Build 3MF will create 20 separate packed files. Each output contains "
                "only that source file repeated 5 times.\n\n"
                "This is useful for quickly batch-converting many independent 3MF jobs "
                "into multi-copy SwapMod packs. It does not combine all input files into one 3MF.",
            )
    def show_output_rule_help(self) -> None:
        QMessageBox.information(
            self,
            "Output filename rule",
            "Available filename tokens:\n\n"
            "{source}  - First input file stem, without .3mf\n"
            "{sources} - Source name summary. For multiple different inputs, it becomes "
            "first_source_and_N_more\n"
            "{plates}  - Total plate count in the output\n"
            "{copies}  - Total copy count used for the output\n"
            "{date}    - Current date as YYYYMMDD\n"
            "{time}    - Current time as HHMMSS\n\n"
            "Default rule:\n"
            "{plates} Plates - {sources}.3mf\n\n"
            "In individual batch mode, these tokens are calculated separately for each input row.",
        )
    def load_swap_gcode_to_combo(self) -> None:
        current = self.swap_gcode_combo.currentData() or self._settings.get("last_swap_gcode")
        options = self._settings.get("packing_options", {})
        if isinstance(options, dict):
            current = current or options.get("swap_gcode")
        self.swap_gcode_combo.clear()
        files = list_swap_gcode_files(default_swap_gcode_dir())
        for path in files:
            self.swap_gcode_combo.addItem(path.name, str(path))
        if current:
            index = self.swap_gcode_combo.findData(str(current))
            if index < 0:
                index = self.swap_gcode_combo.findText(Path(str(current)).name)
            if index >= 0:
                self.swap_gcode_combo.setCurrentIndex(index)
        if not files:
            self.log.append(f"No swap G-code files found in {default_swap_gcode_dir()}")
    def open_path(self, path: Path) -> None:
        target = path if path.exists() else path.parent
        target.parent.mkdir(parents=True, exist_ok=True)
        if sys.platform.startswith("win"):
            os.startfile(str(target))  # type: ignore[attr-defined]
        elif sys.platform == "darwin":
            subprocess.run(["open", str(target)], check=False)
        else:
            subprocess.run(["xdg-open", str(target)], check=False)
    def open_swap_gcode_folder(self) -> None:
        folder = default_swap_gcode_dir()
        folder.mkdir(parents=True, exist_ok=True)
        self.open_path(folder)
    def open_patch_config(self) -> None:
        path = default_patch_config_path()
        if not path.exists():
            QMessageBox.information(self, APP_NAME, f"Patch config does not exist yet:\n{path}")
            return
        self.open_path(path)
    def add_files(self) -> None:
        files, _ = QFileDialog.getOpenFileNames(self, "Add 3MF files", "", "3MF files (*.3mf);;All files (*)")
        self.add_paths([Path(file_name) for file_name in files])
    def add_paths(self, paths: list[Path]) -> None:
        expanded: list[Path] = []
        for path in paths:
            if path.is_dir():
                expanded.extend(sorted(item for item in path.iterdir() if item.is_file() and item.suffix.lower() == ".3mf"))
            elif path.is_file() and path.suffix.lower() == ".3mf":
                expanded.append(path)
        if not expanded:
            return
        existing = {self.table.item(row, 0).text() for row in range(self.table.rowCount()) if self.table.item(row, 0)}
        added = 0
        skipped = 0
        for path in expanded:
            normalized = str(path.resolve())
            if self.skip_duplicates_check.isChecked() and normalized in existing:
                skipped += 1
                continue
            if self.add_file_row(normalized, self.default_copies_spin.value()):
                existing.add(normalized)
                added += 1
            else:
                skipped += 1
        if added or skipped:
            self.log.append(f"Added {added} input file(s). Skipped {skipped}.")
        self.update_total_summary()
        self.update_output_preview()
    def add_file_row(self, file_name: str, copies: int) -> bool:
        path = Path(file_name)
        try:
            summary = read_3mf_summary(path)
        except Exception as exc:
            self.log.append(f"Skipped {path}: {exc}")
            return False
        row = self.table.rowCount()
        self._updating_table = True
        try:
            self.table.insertRow(row)
            path_item = QTableWidgetItem(str(path))
            path_item.setFlags(path_item.flags() & ~Qt.ItemIsEditable)
            path_item.setData(SUMMARY_ROLE, self.summary_to_dict(summary))
            path_item.setToolTip(self.base_summary_tooltip(summary))
            copies_item = QTableWidgetItem(str(max(1, int(copies))))
            copies_item.setTextAlignment(Qt.AlignCenter)
            time_item = QTableWidgetItem("")
            filament_item = QTableWidgetItem("")
            for item in (time_item, filament_item):
                item.setFlags(item.flags() & ~Qt.ItemIsEditable)
                item.setTextAlignment(Qt.AlignRight | Qt.AlignVCenter)
            self.table.setItem(row, 0, path_item)
            self.table.setItem(row, 1, copies_item)
            self.table.setItem(row, 2, time_item)
            self.table.setItem(row, 3, filament_item)
            self.update_row_stats(row)
        finally:
            self._updating_table = False
        return True
    def summary_to_dict(self, summary: ThreeMfSummary) -> dict[str, Any]:
        return {
            "source_3mf": str(summary.source_3mf),
            "plate_count": summary.plate_count,
            "prediction_seconds": summary.prediction_seconds,
            "weight_grams": summary.weight_grams,
            "filament_used_m": summary.filament_used_m,
            "filament_used_g": summary.filament_used_g,
        }
    def base_summary_tooltip(self, summary: ThreeMfSummary) -> str:
        return (
            f"Base plates: {summary.plate_count}\n"
            f"Base time: {format_duration(summary.prediction_seconds)}\n"
            f"Base filament: {format_filament(summary.weight_grams, summary.filament_used_m)}"
        )
    def get_row_copies(self, row: int) -> int:
        item = self.table.item(row, 1)
        if item is None:
            return 1
        try:
            return max(1, int(item.text().strip()))
        except Exception:
            return 1
    def set_row_copies(self, row: int, copies: int) -> None:
        item = self.table.item(row, 1)
        if item is not None:
            item.setText(str(max(1, int(copies))))
    def update_row_stats(self, row: int) -> None:
        path_item = self.table.item(row, 0)
        if path_item is None:
            return
        data = path_item.data(SUMMARY_ROLE)
        if isinstance(data, ThreeMfSummary):
            summary = data
        elif isinstance(data, dict):
            summary = three_mf_summary_from_mapping(data)
        else:
            return
        copies = self.get_row_copies(row)
        total_prediction = None if summary.prediction_seconds is None else summary.prediction_seconds * copies
        total_weight = None if summary.weight_grams is None else summary.weight_grams * copies
        total_used_m = None if summary.filament_used_m is None else summary.filament_used_m * copies
        self.table.item(row, 2).setText(format_duration(total_prediction))
        self.table.item(row, 3).setText(format_filament(total_weight, total_used_m))
    def on_table_item_changed(self, item: QTableWidgetItem) -> None:
        if self._updating_table:
            return
        if item.column() == 1:
            self._updating_table = True
            try:
                copies = self.get_row_copies(item.row())
                item.setText(str(copies))
                self.update_row_stats(item.row())
            finally:
                self._updating_table = False
        self.update_total_summary()
        self.update_output_preview()
    def selected_rows(self) -> list[int]:
        return sorted({index.row() for index in self.table.selectedIndexes()})
    def selected_row(self) -> int | None:
        rows = self.selected_rows()
        return rows[0] if rows else None
    def remove_selected(self) -> None:
        rows = sorted(self.selected_rows(), reverse=True)
        for row in rows:
            self.table.removeRow(row)
        self.update_total_summary()
        self.update_output_preview()
    def remove_all(self) -> None:
        self.table.setRowCount(0)
        self.update_total_summary()
        self.update_output_preview()
    def move_selected(self, delta: int) -> None:
        row = self.selected_row()
        if row is None:
            return
        new_row = row + delta
        if new_row < 0 or new_row >= self.table.rowCount():
            return
        row_values: list[tuple[str, Any, Any, str]] = []
        for col in range(self.table.columnCount()):
            item = self.table.item(row, col)
            row_values.append((item.text() if item else "", item.flags() if item else Qt.ItemIsEnabled, item.data(SUMMARY_ROLE) if item else None, item.toolTip() if item else ""))
        self._updating_table = True
        try:
            self.table.removeRow(row)
            self.table.insertRow(new_row)
            for col, (text, flags, data, tooltip) in enumerate(row_values):
                item = QTableWidgetItem(text)
                item.setFlags(flags)
                if col in {1}:
                    item.setTextAlignment(Qt.AlignCenter)
                elif col in {2, 3}:
                    item.setTextAlignment(Qt.AlignRight | Qt.AlignVCenter)
                if data is not None:
                    item.setData(SUMMARY_ROLE, data)
                if tooltip:
                    item.setToolTip(tooltip)
                self.table.setItem(new_row, col, item)
        finally:
            self._updating_table = False
        self.table.selectRow(new_row)
        self.update_total_summary()
        self.update_output_preview()
    def apply_default_copies_to_selected(self) -> None:
        rows = self.selected_rows()
        if not rows:
            return
        self._updating_table = True
        try:
            for row in rows:
                self.set_row_copies(row, self.default_copies_spin.value())
                self.update_row_stats(row)
        finally:
            self._updating_table = False
        self.update_total_summary()
        self.update_output_preview()
    def choose_output_dir(self) -> None:
        start_dir = self.output_dir_edit.text().strip()
        if not start_dir and self.table.rowCount() > 0 and self.table.item(0, 0):
            start_dir = str(Path(self.table.item(0, 0).text()).parent)
        directory = QFileDialog.getExistingDirectory(self, "Choose output directory", start_dir or "")
        if directory:
            self.output_dir_edit.setText(directory)
    def collect_jobs(self) -> list[PlateJob]:
        jobs: list[PlateJob] = []
        for row in range(self.table.rowCount()):
            path_item = self.table.item(row, 0)
            if path_item is None:
                continue
            jobs.append(PlateJob(Path(path_item.text()), self.get_row_copies(row)))
        return jobs
    def summary_for_path(self, path: Path) -> ThreeMfSummary:
        normalized = str(path)
        for row in range(self.table.rowCount()):
            item = self.table.item(row, 0)
            if item is not None and item.text() == normalized:
                data = item.data(SUMMARY_ROLE)
                if isinstance(data, ThreeMfSummary):
                    return data
                if isinstance(data, dict):
                    return three_mf_summary_from_mapping(data)
        return read_3mf_summary(path)
    def output_naming_options(self) -> OutputNamingOptions:
        return OutputNamingOptions(
            output_directory=self.output_dir_edit.text().strip(),
            filename_rule=self.output_name_edit.text().strip() or DEFAULT_OUTPUT_PATTERN,
        )
    def current_total_summary(self) -> OutputSummary:
        return summarize_jobs_for_output(self.collect_jobs(), self.summary_for_path)
    def update_total_summary(self) -> None:
        summary = self.current_total_summary()
        self.total_summary_label.setText(
            "Total: "
            f"{summary.plate_count} plate(s) | "
            f"Time: {format_duration(summary.prediction_seconds)} | "
            f"Filament: {format_filament(summary.weight_grams, summary.filament_used_m)}"
        )
    def update_output_preview(self) -> None:
        jobs = self.collect_jobs()
        if not jobs:
            self.output_preview_label.setText("Output path preview: -")
            return
        try:
            if self.individual_batch_check.isChecked():
                first_path = resolve_output_path([jobs[0]], self.output_naming_options(), self.summary_for_path)
                self.output_preview_label.setText(
                    f"Individual batch preview: {first_path} | {len(jobs)} output file(s)"
                )
            else:
                output_path = resolve_output_path(jobs, self.output_naming_options(), self.summary_for_path)
                self.output_preview_label.setText(f"Output path preview: {output_path}")
        except Exception as exc:
            self.output_preview_label.setText(f"Output path preview: {exc}")
    def build_options_for_output(self, output_path: Path) -> BuildOptions:
        swap_gcode_path = self.swap_gcode_combo.currentData()
        if not swap_gcode_path:
            raise ValueError("Please put at least one swap G-code file in the swap_gcode folder and select it.")
        cool_bed_temp = self.cool_bed_spin.value() if self.bed_cooldown_check.isChecked() else None
        return BuildOptions(
            swap_gcode=Path(swap_gcode_path),
            output_3mf=output_path,
            cool_bed_temp=cool_bed_temp,
            wait_after_eject_seconds=self.wait_spin.value(),
            show_plate_number=self.show_plate_number_check.isChecked(),
            swap_after_final=self.swap_final_check.isChecked(),
            metadata_mode=self.metadata_combo.currentData(),
            apply_gcode_patches=self.patch_check.isChecked(),
        )
    def log_build_result(self, result: Any) -> None:
        self.log.append(f"Output: {result.output_3mf}")
        self.log.append(f"Plates: {result.plate_count}")
        self.log.append(f"Estimated source time: {format_duration(result.total_prediction_seconds)}")
        self.log.append(f"Estimated source filament: {format_filament(result.total_weight_grams)}")
        self.log.append(f"G-code MD5: {result.gcode_md5}")
    def build_output(self) -> None:
        jobs = self.collect_jobs()
        if not jobs:
            QMessageBox.warning(self, APP_NAME, "Please add at least one 3MF file.")
            return
        try:
            self.save_current_settings()
            if self.individual_batch_check.isChecked():
                self.build_individual_outputs(jobs)
            else:
                self.build_combined_output(jobs)
        except Exception as exc:
            QMessageBox.critical(self, APP_NAME, str(exc))
            self.log.append(f"Error: {exc}")
            return
    def build_combined_output(self, jobs: list[PlateJob]) -> None:
        output_path = resolve_output_path(jobs, self.output_naming_options(), self.summary_for_path)
        options = self.build_options_for_output(output_path)
        result = build_packed_3mf(jobs, options)
        self.log_build_result(result)
        QMessageBox.information(self, APP_NAME, "The packed 3MF file was created.")
        if self.clear_after_build_check.isChecked():
            self.remove_all()
    def build_individual_outputs(self, jobs: list[PlateJob]) -> None:
        used_paths: set[Path] = set()
        success_count = 0
        errors: list[str] = []
        for job in jobs:
            try:
                output_path = make_unique_for_run(
                    resolve_output_path([job], self.output_naming_options(), self.summary_for_path),
                    used_paths,
                )
                options = self.build_options_for_output(output_path)
                result = build_packed_3mf([job], options)
                self.log_build_result(result)
                success_count += 1
            except Exception as exc:
                errors.append(f"{job.source_3mf.name}: {exc}")
                self.log.append(f"Error building {job.source_3mf}: {exc}")
        if errors:
            QMessageBox.warning(
                self,
                APP_NAME,
                f"Built {success_count} file(s), but {len(errors)} file(s) failed.\n\n"
                + "\n".join(errors[:8])
                + ("\n..." if len(errors) > 8 else ""),
            )
            return
        QMessageBox.information(self, APP_NAME, f"Created {success_count} packed 3MF file(s).")
        if self.clear_after_build_check.isChecked():
            self.remove_all()
    def dragEnterEvent(self, event: QDragEnterEvent) -> None:
        if event.mimeData().hasUrls():
            event.acceptProposedAction()
            return
        super().dragEnterEvent(event)
    def dropEvent(self, event: QDropEvent) -> None:
        urls: list[QUrl] = event.mimeData().urls()
        paths = [Path(url.toLocalFile()) for url in urls if url.toLocalFile()]
        self.add_paths(paths)
        event.acceptProposedAction()
    def closeEvent(self, event: Any) -> None:
        self.save_current_settings()
        super().closeEvent(event)
 def main() -> int:
    app = QApplication(sys.argv)
    app.setFont(QFont("Segoe UI", 10))
    window = MainWindow()
    window.show()
    return app.exec()
 if __name__ == "__main__":
    raise SystemExit(main())
@@ -0,0 +1,171 @@
 from __future__ import annotations
 import zipfile
 from pathlib import Path
 from typing import Iterable
 from xml.etree import ElementTree as ET
 from .archive import GCODE_MEMBER_RE, list_gcode_members
 from .models import BuildOptions, BuildSummary, PlateJob, PlateSource, ThreeMfSummary
 def read_slice_plate_metadata(archive: zipfile.ZipFile) -> dict[int, dict[str, str]]:
    try:
        data = archive.read("Metadata/slice_info.config")
    except KeyError:
        return {}
    root = ET.fromstring(data.decode("utf-8-sig", errors="replace"))
    result: dict[int, dict[str, str]] = {}
    for plate in root.findall("plate"):
        plate_data: dict[str, str] = {}
        for metadata in plate.findall("metadata"):
            key = metadata.attrib.get("key")
            value = metadata.attrib.get("value")
            if key is not None and value is not None:
                plate_data[key] = value
        index_text = plate_data.get("index")
        try:
            index = int(index_text) if index_text else len(result) + 1
        except ValueError:
            index = len(result) + 1
        result[index] = plate_data
    return result
 def read_filament_metadata(archive: zipfile.ZipFile) -> dict[int, dict[str, str]]:
    try:
        data = archive.read("Metadata/slice_info.config")
    except KeyError:
        return {}
    root = ET.fromstring(data.decode("utf-8-sig", errors="replace"))
    result: dict[int, dict[str, str]] = {}
    for plate in root.findall("plate"):
        plate_index = 1
        for metadata in plate.findall("metadata"):
            if metadata.attrib.get("key") == "index":
                try:
                    plate_index = int(metadata.attrib.get("value", "1"))
                except ValueError:
                    plate_index = 1
                break
        filament = plate.find("filament")
        if filament is not None:
            result[plate_index] = dict(filament.attrib)
    return result
 def safe_float(value: str | None) -> float | None:
    if value is None:
        return None
    try:
        return float(value)
    except ValueError:
        return None
 def _sum_optional(values: Iterable[float | None]) -> float | None:
    total = 0.0
    found = False
    for value in values:
        if value is not None:
            total += value
            found = True
    return total if found else None
 def read_3mf_summary(source_3mf: Path) -> ThreeMfSummary:
    with zipfile.ZipFile(source_3mf, "r") as archive:
        members = list_gcode_members(archive)
        if not members:
            raise ValueError(f"No Metadata/plate_N.gcode member was found in {source_3mf}")
        plate_metadata = read_slice_plate_metadata(archive)
        filament_metadata = read_filament_metadata(archive)
    predictions: list[float | None] = []
    weights: list[float | None] = []
    used_m_values: list[float | None] = []
    used_g_values: list[float | None] = []
    for member in members:
        match = GCODE_MEMBER_RE.match(member)
        plate_index = int(match.group(1)) if match else 1
        metadata = plate_metadata.get(plate_index, {})
        filament = filament_metadata.get(plate_index, {})
        prediction = safe_float(metadata.get("prediction"))
        weight = safe_float(metadata.get("weight"))
        used_m = safe_float(filament.get("used_m"))
        used_g = safe_float(filament.get("used_g"))
        predictions.append(prediction)
        weights.append(weight if weight is not None else used_g)
        used_m_values.append(used_m)
        used_g_values.append(used_g if used_g is not None else weight)
    return ThreeMfSummary(
        source_3mf=source_3mf,
        plate_count=len(members),
        prediction_seconds=_sum_optional(predictions),
        weight_grams=_sum_optional(weights),
        filament_used_m=_sum_optional(used_m_values),
        filament_used_g=_sum_optional(used_g_values),
    )
 def multiply_summary(summary: ThreeMfSummary, copies: int) -> BuildSummary:
    multiplier = max(1, int(copies))
    return BuildSummary(
        plate_count=summary.plate_count * multiplier,
        total_prediction_seconds=None if summary.prediction_seconds is None else summary.prediction_seconds * multiplier,
        total_weight_grams=None if summary.weight_grams is None else summary.weight_grams * multiplier,
        total_filament_used_m=None if summary.filament_used_m is None else summary.filament_used_m * multiplier,
        total_filament_used_g=None if summary.filament_used_g is None else summary.filament_used_g * multiplier,
    )
 def summarize_jobs(jobs: Iterable[PlateJob]) -> BuildSummary:
    plate_count = 0
    predictions: list[float | None] = []
    weights: list[float | None] = []
    used_m_values: list[float | None] = []
    used_g_values: list[float | None] = []
    for job in jobs:
        summary = multiply_summary(read_3mf_summary(job.source_3mf), job.copies)
        plate_count += summary.plate_count
        predictions.append(summary.total_prediction_seconds)
        weights.append(summary.total_weight_grams)
        used_m_values.append(summary.total_filament_used_m)
        used_g_values.append(summary.total_filament_used_g)
    return BuildSummary(
        plate_count=plate_count,
        total_prediction_seconds=_sum_optional(predictions),
        total_weight_grams=_sum_optional(weights),
        total_filament_used_m=_sum_optional(used_m_values),
        total_filament_used_g=_sum_optional(used_g_values),
    )
 def update_first_slice_info(base_data: bytes, sources: list[PlateSource], options: BuildOptions) -> bytes:
    if options.metadata_mode == "source":
        return base_data
    try:
        root = ET.fromstring(base_data.decode("utf-8-sig", errors="replace"))
    except Exception:
        return base_data
    total_prediction = sum(value for value in (source.prediction_seconds for source in sources) if value is not None)
    total_weight = sum(value for value in (source.weight_grams for source in sources) if value is not None)
    total_used_m = sum(value for value in (source.filament_used_m for source in sources) if value is not None)
    total_used_g = sum(value for value in (source.filament_used_g for source in sources) if value is not None)
    first_plate = root.find("plate")
    if first_plate is None:
        return base_data
    for metadata in first_plate.findall("metadata"):
        key = metadata.attrib.get("key")
        if key == "prediction" and total_prediction > 0:
            metadata.set("value", str(int(round(total_prediction))))
        elif key == "weight" and total_weight > 0:
            metadata.set("value", f"{total_weight:.2f}")
    filament = first_plate.find("filament")
    if filament is not None:
        if total_used_m > 0:
            filament.set("used_m", f"{total_used_m:.2f}")
        if total_used_g > 0:
            filament.set("used_g", f"{total_used_g:.2f}")
    return ET.tostring(root, encoding="utf-8", xml_declaration=True)
@@ -0,0 +1,86 @@
 from __future__ import annotations
 from dataclasses import dataclass
 from pathlib import Path
 from typing import Literal
 DEFAULT_INSERT_BEFORE_MARKER = ";=====printer finish  sound========="
 MetadataMode = Literal["source", "sum"]
 LineEnding = Literal["lf", "crlf"]
@dataclass(frozen=True)
 class PlateJob:
    source_3mf: Path
    copies: int = 1
@dataclass(frozen=True)
 class GcodePatchRule:
    name: str
    find: str
    replace: str
    flag: str = ""
    enabled: bool = True
    max_count: int = 1
@dataclass(frozen=True)
 class GcodePatchConfig:
    rules: tuple[GcodePatchRule, ...]
    insert_before_marker: str = DEFAULT_INSERT_BEFORE_MARKER
@dataclass(frozen=True)
 class BuildOptions:
    swap_gcode: Path | str
    output_3mf: Path
    cool_bed_temp: int | None = 45
    wait_after_eject_seconds: int = 45
    show_plate_number: bool = True
    swap_after_final: bool = True
    metadata_mode: MetadataMode = "source"
    line_ending: LineEnding = "crlf"
    add_preview_label: bool = True
    apply_gcode_patches: bool = True
    swap_gcode_dir: Path | None = None
@dataclass
 class PlateSource:
    source_3mf: Path
    member_name: str
    gcode_text: str
    prediction_seconds: float | None = None
    weight_grams: float | None = None
    filament_used_m: float | None = None
    filament_used_g: float | None = None
@dataclass(frozen=True)
 class ThreeMfSummary:
    source_3mf: Path
    plate_count: int
    prediction_seconds: float | None = None
    weight_grams: float | None = None
    filament_used_m: float | None = None
    filament_used_g: float | None = None
@dataclass(frozen=True)
 class BuildSummary:
    plate_count: int
    total_prediction_seconds: float | None
    total_weight_grams: float | None
    total_filament_used_m: float | None
    total_filament_used_g: float | None
@dataclass
 class BuildResult:
    output_3mf: Path
    plate_count: int
    total_prediction_seconds: float | None
    total_weight_grams: float | None
    gcode_md5: str
@@ -0,0 +1,87 @@
 from __future__ import annotations
 import configparser
 from pathlib import Path
 from .gcode import normalize_newlines
 from .models import DEFAULT_INSERT_BEFORE_MARKER, GcodePatchConfig, GcodePatchRule
 from .paths import default_patch_config_path
 def parse_bool(value: str | None, default: bool = True) -> bool:
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on", "enabled"}
 def parse_patch_config(path: Path | None = None) -> GcodePatchConfig:
    config_path = path or default_patch_config_path()
    if not config_path.exists():
        return GcodePatchConfig(rules=())
    parser = configparser.ConfigParser(interpolation=None, strict=False)
    parser.optionxform = str
    parser.read(config_path, encoding="utf-8-sig")
    insert_before_marker = DEFAULT_INSERT_BEFORE_MARKER
    if parser.has_section("swap"):
        insert_before_marker = parser.get("swap", "insert_before_marker", fallback=insert_before_marker).strip().strip('"')
    rules: list[GcodePatchRule] = []
    for section in parser.sections():
        if section.lower().startswith("patch."):
            enabled = parse_bool(parser.get(section, "enabled", fallback="true"), True)
            find = parser.get(section, "find", fallback="").strip().strip('"')
            replace = parser.get(section, "replace", fallback="").strip().strip('"')
            flag = parser.get(section, "flag", fallback="").strip().strip('"')
            max_count_text = parser.get(section, "max_count", fallback="1").strip()
            try:
                max_count = max(0, int(max_count_text))
            except ValueError:
                max_count = 1
            if find and enabled:
                rules.append(GcodePatchRule(section.split(".", 1)[1], find, replace, flag, enabled, max_count))
    if parser.has_section("Gcode"):
        gcode = parser["Gcode"]
        base_names = sorted(
            key[:-5]
            for key in gcode.keys()
            if key.startswith("Postion") and key.endswith("_flag")
        )
        for base in base_names:
            find = gcode.get(base, "").strip().strip('"')
            replace = gcode.get(f"{base}_edit", "").strip().strip('"')
            flag = gcode.get(f"{base}_flag", "").strip().strip('"')
            if find and replace:
                rules.append(GcodePatchRule(base, find, replace, flag, True, 1))
        marker = gcode.get("FinishFlag", "").strip().strip('"')
        if marker:
            insert_before_marker = marker
    return GcodePatchConfig(tuple(rules), insert_before_marker)
 def apply_patch_rule(text: str, rule: GcodePatchRule) -> str:
    if not rule.enabled or not rule.find or rule.max_count == 0:
        return text
    lines = normalize_newlines(text).split("\n")
    start_index = 0
    if rule.flag:
        for index, line in enumerate(lines):
            if line.strip() == rule.flag or rule.flag in line:
                start_index = index + 1
                break
    replacements = 0
    for index in range(start_index, len(lines)):
        if lines[index].strip() == rule.find or lines[index] == rule.find:
            lines[index] = rule.replace
            replacements += 1
            if replacements >= rule.max_count:
                break
    return "\n".join(lines)
 def apply_gcode_patches(text: str, config: GcodePatchConfig) -> str:
    patched = normalize_newlines(text)
    for rule in config.rules:
        patched = apply_patch_rule(patched, rule)
    return patched
@@ -0,0 +1,26 @@
 from __future__ import annotations
 import sys
 from pathlib import Path
 APP_DIR_NAME = "a1_swap_mod_packer"
 SWAP_GCODE_DIR_NAME = "swap_gcode"
 PATCH_CONFIG_FILE_NAME = "gcode_patches.ini"
 def program_root() -> Path:
    if getattr(sys, "frozen", False):
        return Path(sys.executable).resolve().parent
    return Path(__file__).resolve().parents[1]
 def default_swap_gcode_dir() -> Path:
    return program_root() / SWAP_GCODE_DIR_NAME
 def default_patch_config_path() -> Path:
    return program_root() / PATCH_CONFIG_FILE_NAME
 def user_settings_path() -> Path:
    return program_root() / "settings.json"
@@ -0,0 +1,146 @@
 from __future__ import annotations
 import re
 from dataclasses import dataclass
 from datetime import datetime
 from pathlib import Path
 from typing import Callable, Mapping, Sequence
 from .metadata import read_3mf_summary
 from .models import PlateJob, ThreeMfSummary
 DEFAULT_OUTPUT_PATTERN = "{plates} Plates - {sources}.3mf"
 SummaryResolver = Callable[[Path], ThreeMfSummary]
@dataclass(frozen=True)
 class OutputSummary:
    plate_count: int
    copy_count: int
    prediction_seconds: float | None = None
    weight_grams: float | None = None
    filament_used_m: float | None = None
@dataclass(frozen=True)
 class OutputNamingOptions:
    output_directory: Path | str | None = None
    filename_rule: str = DEFAULT_OUTPUT_PATTERN
 class SafeFormatDict(dict):
    def __missing__(self, key: str) -> str:
        return "{" + key + "}"
 def three_mf_summary_from_mapping(data: Mapping[str, object]) -> ThreeMfSummary:
    source_value = data.get("source_3mf")
    return ThreeMfSummary(
        source_3mf=Path(str(source_value)) if source_value is not None else Path(),
        plate_count=int(data.get("plate_count") or 0),
        prediction_seconds=_optional_float(data.get("prediction_seconds")),
        weight_grams=_optional_float(data.get("weight_grams")),
        filament_used_m=_optional_float(data.get("filament_used_m")),
        filament_used_g=_optional_float(data.get("filament_used_g")),
    )
 def summarize_jobs_for_output(
    jobs: Sequence[PlateJob],
    summary_resolver: SummaryResolver = read_3mf_summary,
 ) -> OutputSummary:
    plate_count = 0
    copy_count = 0
    prediction_total = 0.0
    prediction_found = False
    weight_total = 0.0
    weight_found = False
    used_m_total = 0.0
    used_m_found = False
    for job in jobs:
        summary = summary_resolver(job.source_3mf)
        copies = max(1, int(job.copies))
        copy_count += copies
        plate_count += summary.plate_count * copies
        if summary.prediction_seconds is not None:
            prediction_total += summary.prediction_seconds * copies
            prediction_found = True
        if summary.weight_grams is not None:
            weight_total += summary.weight_grams * copies
            weight_found = True
        if summary.filament_used_m is not None:
            used_m_total += summary.filament_used_m * copies
            used_m_found = True
    return OutputSummary(
        plate_count=plate_count,
        copy_count=copy_count,
        prediction_seconds=prediction_total if prediction_found else None,
        weight_grams=weight_total if weight_found else None,
        filament_used_m=used_m_total if used_m_found else None,
    )
 def sanitize_filename(file_name: str) -> str:
    sanitized = re.sub(r"[\\/:*?\"<>|]+", "_", file_name).strip()
    sanitized = sanitized.rstrip(". ")
    return sanitized or "packed.3mf"
 def resolve_output_path(
    jobs: Sequence[PlateJob],
    naming: OutputNamingOptions,
    summary_resolver: SummaryResolver = read_3mf_summary,
    now: datetime | None = None,
 ) -> Path:
    if not jobs:
        raise ValueError("No input 3MF file was provided.")
    summary = summarize_jobs_for_output(jobs, summary_resolver)
    first_input = jobs[0].source_3mf
    stems = [job.source_3mf.stem for job in jobs]
    unique_stems = list(dict.fromkeys(stems))
    source_token = first_input.stem
    sources_token = source_token if len(unique_stems) == 1 else f"{source_token}_and_{len(unique_stems) - 1}_more"
    timestamp = now or datetime.now()
    tokens = SafeFormatDict(
        source=source_token,
        sources=sources_token,
        plates=summary.plate_count,
        copies=summary.copy_count,
        date=timestamp.strftime("%Y%m%d"),
        time=timestamp.strftime("%H%M%S"),
    )
    pattern = naming.filename_rule.strip() or DEFAULT_OUTPUT_PATTERN
    file_name = sanitize_filename(pattern.format_map(tokens))
    if not file_name.lower().endswith(".3mf"):
        file_name += ".3mf"
    output_dir_text = "" if naming.output_directory is None else str(naming.output_directory).strip()
    output_dir = Path(output_dir_text) if output_dir_text else first_input.parent
    return output_dir / file_name
 def make_unique_for_run(path: Path, used_paths: set[Path]) -> Path:
    resolved_key = path.resolve(strict=False)
    if resolved_key not in used_paths:
        used_paths.add(resolved_key)
        return path
    stem = path.stem
    suffix = path.suffix
    parent = path.parent
    index = 2
    while True:
        candidate = parent / f"{stem}_{index}{suffix}"
        candidate_key = candidate.resolve(strict=False)
        if candidate_key not in used_paths:
            used_paths.add(candidate_key)
            return candidate
        index += 1
 def _optional_float(value: object) -> float | None:
    if value is None:
        return None
    try:
        return float(value)
    except (TypeError, ValueError):
        return None
@@ -0,0 +1,11 @@
 # Editable G-code patch rules for A1 Swap Mod Packer.
 [swap]
 insert_before_marker = ;=====printer finish  sound=========
 [patch.a1_start_y]
 enabled = true
 flag = G0 X128 F30000
 find = G0 Y254 F3000
 replace = G0 Y250 F3000 ;Patched
 max_count = 1
@@ -0,0 +1,2 @@
 PySide6>=6.6
 Pillow>=10.0
@@ -0,0 +1,4 @@
 from a1_swap_mod_packer.cli import main
 if __name__ == "__main__":
    raise SystemExit(main())
@@ -0,0 +1,4 @@
 from a1_swap_mod_packer.gui import main
 if __name__ == "__main__":
    raise SystemExit(main())
@@ -0,0 +1,100 @@
 ;start change plate
 G28 Y
 G1 Y262 F1200
 G91
 G380 S3 Z-25 F1200
 G380 S2 Z85 F1200
 G380 S3 Z-20 F1200
 G380 S2 Z85 F1200
 G380 S3 Z-20 F1200
 G380 S2 Z85 F1200
 G380 S3 Z-20 F1200
 G380 S2 Z85 F1200
 G1 Z-5 F1200
 G90;
 G4 P2000
 G1 Y15 F2000
 G1 Y150 F1200
 G1 Y40 F1200 
 ;G1 Y260 F3000
 ;The platform ensures that new plate can be added properly even when no plate are available.
 G380 S2 Y264 F2000
 G91;
 ;G380 S3 Z-55 F1200
 G1 Z-55 F1200
 G90;
 G1 Y120 F4000
 G28 Y
 ;Avoiding the use of the G380 command is to prevent failure in reaching the correct position.
 G1 Y-1 F1200
 ;G380 S3 Y-1 F1200
 G4 P500
 ;start  Shake-triggered plate replacement
 G1 Y1 F100
 G1 Y0 F20000
 G4 P500
 G1 Y1.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y3 F100
 G1 Y0 F10000
 G4 P500
 G1 Y3.5 F100
 G1 Y0 F5000
 ;end   Shake-triggered plate replacement
 G1 Y235 F1200
 G1 Y110 F5000
 G1 Y200 F1200
 ;G1 Y266 F1500
 G380 S2 Y264 F2000
 ;After retracting the build plate to the frontmost position, dwell for 1 second.
 G4 P1000  
 G1 Y40 F4000
 G1 Y-2 F5000
 ;start  Shake-triggered plate replacement
 G1 Y1 F100
 G1 Y0 F20000
 G4 P500
 G1 Y1.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y3 F100
 G1 Y0 F10000
 G4 P500
 G1 Y3.5 F100
 G1 Y0 F5000
 ;G1 Y2.5 F100
 ;G1 Y0 F8000
 ;G4 P1000
 ;G1 Y3.5 F100
 ;G1 Y0 F5000
 ;end   Shake-triggered plate replacement
 G1 Y120 F2000
 ;end change plate
@@ -0,0 +1,115 @@
 ;start change plate
 G28 Y
 G1 Y262 F2000
 M400 ; wait all motion done
 M17 Z0.4 ; lower z motor current to reduce impact if there is something in the bottom
 G91
 G1 Z-35 F1200
 G380 S2 Z95
 G1 Z-25
 G380 S2 Z90
 G1 Z-25
 G380 S2 Z90
 G1 Z-30
 G380 S2 Z95
 G1 Z-5 
 G90
 G4 P2000
 G1 Y15 F800
 G1 Y150 F1200
 ;This line controls how much distance the tail of the reel hangs. The smaller the value, the less distance it hangs.
 G1 Y40 F1000 
 ;The platform ensures that new plate can be added properly even when no plate are available.
 ;G1 Y260 F3000
 G380 S2 Y264 F2000
 G91;
 G1 Z-70 F1200
 G90;
 ;
 G1 Y200 F10000
 G1 Y25 F4000
 ;Avoiding the use of the G380 command is to prevent failure in reaching the correct position.
 G1 Y-1 F20000
 ;G380 S3 Y-1 F1200
 G4 P500
 G28 Y
 ;start  Shake-triggered plate replacement
 G1 Y1 F100
 G1 Y0 F20000
 G4 P500
 G1 Y1.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F10000
 G4 P500
 ;G1 Y3.5 F100
 ;G1 Y0 F5000
 ;end   Shake-triggered plate replacement
 G1 Y235 F1200
 G1 Y110 F5000
 G1 Y200 F1200
 ;G1 Y266 F1500
 G380 S2 Y264 F2000
 ;After retracting the build plate to the frontmost position, dwell for 1 second.
 G4 P1000  
 G1 Y25 F4000
 G1 Y-2 F20000
 ;G1 Y-2 F1000
 G4 P500
 ;start  Shake-triggered plate replacement
 G1 Y1 F100
 G1 Y0 F20000
 G4 P500
 G1 Y1.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F10000
 G4 P500
 ;end   Shake-triggered plate replacement
 ;move to front
 G1 Y262 F1500
 G1 Y120 F2000
 ;end change plate
@@ -0,0 +1,115 @@
 ;start change plate
 G28 Y
 G1 Y262 F2000
 M400 ; wait all motion done
 M17 Z0.4 ; lower z motor current to reduce impact if there is something in the bottom
 G91
 G1 Z-35 F1200
 G380 S2 Z95
 G1 Z-25
 G380 S2 Z90
 G1 Z-25
 G380 S2 Z90
 G1 Z-30
 G380 S2 Z95
 G1 Z-5 
 G90
 G4 P2000
 G1 Y15 F800
 G1 Y150 F1200
 ;This line controls how much distance the tail of the reel hangs. The smaller the value, the less distance it hangs.
 G1 Y40 F1000 
 ;The platform ensures that new plate can be added properly even when no plate are available.
 ;G1 Y260 F3000
 G380 S2 Y264 F2000
 G91;
 G1 Z-70 F1200
 G90;
 ;
 G1 Y200 F10000
 G1 Y25 F4000
 ;Avoiding the use of the G380 command is to prevent failure in reaching the correct position.
 G1 Y-1 F20000
 ;G380 S3 Y-1 F1200
 G4 P500
 G28 Y
 ;start  Shake-triggered plate replacement
 G1 Y1 F100
 G1 Y0 F20000
 G4 P500
 G1 Y1.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F10000
 G4 P500
 ;G1 Y3.5 F100
 ;G1 Y0 F5000
 ;end   Shake-triggered plate replacement
 G1 Y235 F1200
 G1 Y110 F5000
 G1 Y200 F1200
 ;G1 Y266 F1500
 G380 S2 Y264 F2000
 ;After retracting the build plate to the frontmost position, dwell for 1 second.
 G4 P1000  
 G1 Y25 F4000
 ;G1 Y-2 F20000
 G1 Y-2 F1000
 G4 P500
 ;start  Shake-triggered plate replacement
 G1 Y1 F100
 G1 Y0 F20000
 G4 P500
 G1 Y1.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F20000
 G4 P500
 G1 Y2.5 F100
 G1 Y0 F10000
 G4 P500
 ;end   Shake-triggered plate replacement
 ;move to front
 G1 Y262 F1500
 G1 Y120 F2000
 ;end change plate
		`@@ -0,0 +1,2 @@`
							`__version__ = "0.4.0"`
							`APP_NAME = "A1 Swap Mod Packer"`