#!/usr/bin/env python3
import hashlib
import json
import pathlib
import sys
import tempfile

import bpy


OBJECT_NAME = "WebGapAssetMarkObject"


def object_state():
    obj = bpy.data.objects.get(OBJECT_NAME)
    if obj is None:
        raise RuntimeError("asset mark fixture object is missing")
    metadata = obj.asset_data
    return {
        "name": obj.name,
        "assetMarked": metadata is not None,
        "author": metadata.author if metadata is not None else "",
        "description": metadata.description if metadata is not None else "",
        "tags": sorted(tag.name for tag in metadata.tags) if metadata is not None else [],
    }


def main():
    arguments = sys.argv[sys.argv.index("--") + 1 :]
    if len(arguments) != 2:
        raise SystemExit(
            "usage: blender -b --factory-startup --python "
            "check-action-asset-mark-desktop.py -- FIXTURE REPORT"
        )
    fixture, output = (pathlib.Path(value).resolve() for value in arguments)
    output.unlink(missing_ok=True)
    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
    before = object_state()
    accepted_errors = (
        "No data-block selected",
        "context is incorrect",
        "supports asset operations",
    )
    try:
        poll = bool(bpy.ops.asset.mark.poll())
    except RuntimeError as error:
        if not any(token in str(error) for token in accepted_errors):
            raise
        poll = False
    if poll:
        raise RuntimeError("asset.mark unexpectedly polled true without an editor ID context")
    try:
        bpy.ops.asset.mark()
    except RuntimeError as error:
        if not any(token in str(error) for token in accepted_errors):
            raise
        operator_status = "CANCELLED"
    else:
        raise RuntimeError("asset.mark unexpectedly finished without an editor ID context")
    after_cancel = object_state()
    if after_cancel != before:
        raise RuntimeError(f"asset.mark cancellation changed Main data: {before} != {after_cancel}")
    with tempfile.NamedTemporaryFile(
        prefix="m16-asset-mark-reopen-", suffix=".blend", dir=fixture.parent
    ) as temporary:
        bpy.ops.wm.save_as_mainfile(filepath=temporary.name, check_existing=False, compress=True)
        bpy.ops.wm.open_mainfile(filepath=temporary.name, load_ui=False)
        after = object_state()
    if after != before:
        raise RuntimeError(f"asset.mark save/reopen drift: {before} != {after}")
    report = {
        "schemaVersion": 1,
        "task": "M16-GAP-00279",
        "operation": "ASSET_MARK_DESKTOP",
        "fixture": str(fixture),
        "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
        "before": before,
        "after": after,
        "poll": poll,
        "operatorStatus": operator_status,
        "mainMutation": "NONE",
        "saveReopen": "EXACT",
        "blenderVersion": bpy.app.version_string,
    }
    output.parent.mkdir(parents=True, exist_ok=True)
    output.write_text(json.dumps(report, indent=2, sort_keys=True) + "\n", encoding="utf-8")
    print("asset-mark-desktop-ok poll=false status=CANCELLED mainMutation=none saveReopen=exact")


if __name__ == "__main__":
    try:
        main()
    except Exception as error:
        print(f"asset-mark-desktop-failed: {error}")
        raise SystemExit(1)