#!/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-P6-002-PerformanceFaultMatrixReceipt")
    cube = bpy.data.objects.get("WBV2P6002RecoveryCube")
    if receipt is None or cube is None:
        raise RuntimeError("performance fault fixture is missing receipt or cube")
    return {"sceneId": "scene:" + scene.name, "cubeId": "object:" + cube.name, "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-p6-002-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"performance fault save/reopen drift: {before} != {after}")
    receipt = after["receipt"]
    if len(receipt["thresholds"]) != 7 or any(item["status"] != "PASS" for item in receipt["thresholds"]):
        raise RuntimeError("performance thresholds are incomplete")
    if any(item["status"] != "BLOCKED" or item["publishedResults"] != 0 for item in receipt["faults"].values()):
        raise RuntimeError("faults must fail closed without publishing")
    report = {"schemaVersion": 1, "task": "WBV2-P6-002", "operation": "PERFORMANCE_FAULT_MATRIX_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-p6-002-desktop-ok thresholds=7 faults=4 blocked=4 saveReopen=exact")


if __name__ == "__main__":
    main()