#!/usr/bin/env python3
from __future__ import annotations

import argparse
import json
from pathlib import Path
from typing import Any

import yaml


REQUIRED_TASK_IDS = {
    "WBS-10-A1", "WBS-10-A2", "WBS-10-A3",
    "WBS-10-B1", "WBS-10-B2", "WBS-10-B3",
    "WBS-10-C1", "WBS-10-C2", "WBS-10-C3",
}


def load_yaml(path: Path) -> dict[str, Any]:
    if not path.exists():
        raise FileNotFoundError(path)
    return yaml.safe_load(path.read_text(encoding="utf-8"))


def main(argv: list[str] | None = None) -> int:
    parser = argparse.ArgumentParser(description="Validate WBS-10 dotnet migration roadmap")
    parser.add_argument("--roadmap", default="docs/WBS_10_DOTNET_MIGRATION_ROADMAP.yaml")
    args = parser.parse_args(argv)

    roadmap_path = Path(args.roadmap).resolve()
    payload: dict[str, Any] = {
        "formula_id": "WBS_10_DOTNET_MIGRATION_ROADMAP_V1",
        "gate": "FAIL",
        "missing": [],
        "evidence": {"roadmap": str(roadmap_path)},
    }

    try:
        data = load_yaml(roadmap_path)
    except FileNotFoundError:
        payload["missing"].append("roadmap missing")
        print(json.dumps(payload, ensure_ascii=False, indent=2))
        return 1

    if data.get("formula_id") != "WBS_10_DOTNET_MIGRATION_ROADMAP_V1":
        payload["missing"].append("formula_id")

    roadmap = data.get("roadmap") or {}
    tracks = roadmap.get("tracks") or []
    if roadmap.get("phase_name") != "WBS-10 .NET 엔진 고도화":
        payload["missing"].append("roadmap.phase_name")
    if roadmap.get("execution_order") is None:
        payload["missing"].append("roadmap.execution_order")

    task_ids: set[str] = set()
    for track in tracks:
        for task in track.get("tasks") or []:
            task_ids.add(task.get("task_id", ""))
            if not task.get("success_data_guide"):
                payload["missing"].append(f"{task.get('task_id','<unknown>')}.success_data_guide")
            if not task.get("depends_on") and task.get("task_id") not in {"WBS-10-A1", "WBS-10-B1", "WBS-10-C1"}:
                payload["missing"].append(f"{task.get('task_id','<unknown>')}.depends_on")

            guide = task.get("success_data_guide") or {}
            if "expected_artifact_schema" not in guide:
                payload["missing"].append(f"{task.get('task_id','<unknown>')}.expected_artifact_schema")
            if "failure_conditions" not in guide:
                payload["missing"].append(f"{task.get('task_id','<unknown>')}.failure_conditions")

    missing_tasks = sorted(REQUIRED_TASK_IDS - task_ids)
    for task_id in missing_tasks:
        payload["missing"].append(f"{task_id} missing")

    alignment = data.get("alignment") or {}
    spec_task_map = alignment.get("spec_task_map") or {}
    if not spec_task_map:
        payload["missing"].append("alignment.spec_task_map")
    else:
        for spec_id in ("WBS-10.1", "WBS-10.2", "WBS-10.3", "WBS-10.4", "WBS-10.5", "WBS-10.6",
                        "WBS-10.7", "WBS-10.8", "WBS-10.9", "WBS-10.10", "WBS-10.11", "WBS-10.12"):
            if spec_id not in spec_task_map:
                payload["missing"].append(f"alignment.{spec_id}")

    payload["gate"] = "PASS" if not payload["missing"] else "FAIL"
    payload["message"] = (
        "WBS-10 dotnet migration roadmap validation passed."
        if payload["gate"] == "PASS"
        else "WBS-10 dotnet migration roadmap validation failed."
    )

    out_path = roadmap_path.parent.parent / "Temp" / "wbs_10_dotnet_migration_roadmap_v1.json"
    out_path.parent.mkdir(parents=True, exist_ok=True)
    out_path.write_text(json.dumps(payload, ensure_ascii=False, indent=2), encoding="utf-8")
    print(json.dumps(payload, ensure_ascii=False, indent=2))
    return 0 if payload["gate"] == "PASS" else 1


if __name__ == "__main__":
    raise SystemExit(main())