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

import bpy


def state():
    scene = bpy.context.scene
    receipt = bpy.data.texts.get("WBV2-P5-003-ServerJobBindingReceipt")
    cube = bpy.data.objects.get("WBV2P5003ServerCube")
    if receipt is None or cube is None:
        raise RuntimeError("server job fixture is missing receipt or cube")
    return {"sceneId": "scene:" + scene.name, "cubeId": "object:" + cube.name, "engine": scene.render.engine, "resolution": [scene.render.resolution_x, scene.render.resolution_y], "receipt": json.loads(receipt.as_string())}


def main():
    arguments = sys.argv[sys.argv.index("--") + 1 :]
    if len(arguments) != 2:
        raise SystemExit("usage: blender -b --factory-startup --python check-wbv2-p5-003-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 = state()
    temporary = fixture.with_name(f"{fixture.stem}-reopen.blend")
    try:
        bpy.ops.wm.save_as_mainfile(filepath=str(temporary), check_existing=False, compress=True)
        bpy.ops.wm.open_mainfile(filepath=str(temporary), load_ui=False)
        after = state()
    finally:
        temporary.unlink(missing_ok=True)
    if before != after:
        raise RuntimeError(f"server job save/reopen drift: {before} != {after}")
    report = {"schemaVersion": 1, "task": "WBV2-P5-003", "operation": "SERVER_JOB_BINDING_DESKTOP", "fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(), "state": 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("wbv2-p5-003-desktop-ok engine=%s request=%s result=%s saveReopen=exact" % (after["engine"], after["receipt"]["request"]["requestSha256"], after["receipt"]["result"]["resultSha256"]))


if __name__ == "__main__":
    main()