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

import bpy


def action_report():
    obj = bpy.data.objects.get("WebGapMarkersMakeLocalObject")
    if obj is None or obj.animation_data is None or obj.animation_data.action is None:
        raise RuntimeError("WebGapMarkersMakeLocalObject Action is missing")
    action = obj.animation_data.action
    return {"name": action.name, "markers": sorted(({"name": marker.name, "frame": marker.frame} for marker in action.pose_markers), key=lambda value: (value["frame"], value["name"]))}


def main():
    arguments = sys.argv[sys.argv.index("--") + 1:]
    if len(arguments) != 2:
        raise SystemExit("usage: blender -b --python check-action-markers-make-local-desktop.py -- FIXTURE REPORT")
    fixture, output = (pathlib.Path(value).resolve() for value in arguments)
    bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
    before = action_report()
    if before != {"name": "WebGapMarkersMakeLocalObjectAction", "markers": [{"name": "LocalActionMarker", "frame": 3}]}:
        raise RuntimeError(f"unexpected action.markers_make_local result: {before}")
    descriptor, temporary = tempfile.mkstemp(prefix="m16-action-markers-local-reopen-", suffix=".blend")
    os.close(descriptor)
    try:
        bpy.ops.wm.save_as_mainfile(filepath=temporary, check_existing=False, compress=True)
        bpy.ops.wm.open_mainfile(filepath=temporary, load_ui=False)
        after = action_report()
    finally:
        pathlib.Path(temporary).unlink(missing_ok=True)
    if before != after:
        raise RuntimeError(f"action.markers_make_local save/reopen drift: {before} != {after}")
    report = {"schemaVersion": 1, "task": "M16-GAP-00127", "operation": "ACTION_MARKERS_MAKE_LOCAL_DESKTOP", "fixture": str(fixture), "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(), "marker": after["markers"][0], "action": after, "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("action-markers-make-local-desktop-ok markers=1 frame=3 saveReopen=exact")


if __name__ == "__main__":
    main()