#!/usr/bin/env python3
"""检查 app_client 的 Step 2/后续开发任务是否全部完成。"""
from __future__ import annotations

import json
import sys
from pathlib import Path


ROOT = Path(__file__).resolve().parent
PROGRESS_PATH = ROOT / "progress.json"


def main() -> int:
    if not PROGRESS_PATH.is_file():
        print("progress.json not found", file=sys.stderr)
        return 2

    try:
        data = json.loads(PROGRESS_PATH.read_text(encoding="utf-8"))
    except Exception as exc:
        print(f"invalid progress.json: {exc}", file=sys.stderr)
        return 2

    total = data.get("total_tasks")
    tasks = data.get("tasks")
    if not isinstance(total, int) or total <= 0 or not isinstance(tasks, list):
        print("invalid progress shape", file=sys.stderr)
        return 2
    if len(tasks) != total:
        print(f"task count mismatch: total_tasks={total}, tasks={len(tasks)}", file=sys.stderr)
        return 2

    ids = [task.get("id") for task in tasks if isinstance(task, dict)]
    if ids != list(range(1, total + 1)):
        print("task ids are not contiguous from 1", file=sys.stderr)
        return 2

    pending = [task for task in tasks if task.get("status") != "done"]
    if pending:
        print(f"pending tasks: {len(pending)}/{total}")
        print("all tasks done: false")
        return 1

    print(f"all tasks done: true ({total})")
    return 0


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