# -*- coding: utf-8 -*-
"""数据库种子脚本（非运行态）—— 在迁移后、启动应用前执行。

用法：uv run python scripts/db/seed.py
职责：灌入平台/园区/培训的基础种子数据（角色、权限、用户、默认园区、培训事件课程等）。
全部幂等（按标记行判断，重跑安全）。禁止在应用启动时调用本逻辑。
"""
from __future__ import annotations

import asyncio
import logging
import sys
import os
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent.parent))

from app.infrastructure.repositories import Database
from app.infrastructure.seed import seed_data as platform_seed
from app import config

logging.basicConfig(level=logging.INFO, format="%(levelname)s %(name)s: %(message)s")
log = logging.getLogger("db.seed")


def _seed_training() -> None:
    """培训种子（唯一总库 app.db）：排期 + 在线课程（幂等）。

    不再向旧 ``accounts`` 表种子账号 —— 平台规范账号已由 platform_seed 写入
    ``users``（如 u_demo_01/pine），旧 accounts 为「多余账号仓」已被清理
    （见 scripts/db/cleanup_accounts.py），此处不再重复造账号。
    """
    import sqlite3
    from app.training import db as tdb
    conn = sqlite3.connect(tdb.DB_PATH)
    conn.row_factory = sqlite3.Row
    try:
        if conn.execute("SELECT COUNT(*) AS c FROM events").fetchone()["c"] == 0:
            for e in tdb.SEED_EVENTS:
                conn.execute("INSERT INTO events (id,type,mode,title,subtitle,desc,location,host,image,link,start_at,duration_min,capacity,status) VALUES (:id,:type,:mode,:title,:subtitle,:desc,:location,:host,:image,:link,:start_at,:duration_min,:capacity,:status)", e)
        if conn.execute("SELECT COUNT(*) AS c FROM courses").fetchone()["c"] == 0:
            for c in tdb.SEED_COURSES:
                conn.execute("INSERT INTO courses (id,category,level,title,subtitle,desc,price,status,start_at,end_at,venue,quota,image,host,created_at) VALUES (:id,:category,:level,:title,:subtitle,:desc,:price,:status,:start_at,:end_at,:venue,:quota,:image,:host,:created_at)", c)
        conn.commit()
        log.info("培训种子完成（账号/排期/课程）")
    finally:
        conn.close()


async def _migrate_accounts_to_users(db) -> None:
    """把培训端 accounts 存量并入平台 users（幂等：已存在账号跳过并保证身份）。

    迁移旧小程序账号 → users（wx_mini_openid/phone 关联），使微信/手机登录仍命中，
    且并入全局唯一账号体系。迁移/种子由用户执行（铁律），禁止运行态调用。
    """
    import secrets
    import sqlite3
    from app.training import db as tdb
    from app.api.routers.auth import _ensure_opc_identity

    conn = sqlite3.connect(tdb.DB_PATH)
    conn.row_factory = sqlite3.Row
    migrated = created = 0
    try:
        for row in conn.execute("SELECT * FROM accounts"):
            username = (row["username"] or "").strip()
            wxid = (row["wxid"] or "").strip()
            phone = (row["phone"] or "").strip()
            if not username and not wxid and not phone:
                continue
            user = (await db.users.get_by_username(username)) if username else None
            if user is None and phone:
                user = await db.users.get_by_username(phone)
            if user is None and wxid:
                user = (await db.users.get_by_wx_mini_openid(wxid)
                        or await db.users.get_by_wx_openid(wxid))
            if user is None:
                uname = (username or phone or f"wx_{wxid[:24]}")
                user = await db.users.create(
                    username=uname, password=secrets.token_hex(16),
                    nickname=(row["name"] or uname), avatar=(row["avatar"] or ""),
                    phone=phone, wx_mini_openid=wxid or "",
                    wx_openid=(f"wx_{wxid[:24]}" if wxid else ""),
                    source="mini_program",
                    auth_type=("wx_openid" if wxid else ("phone" if phone else "unknown")),
                    role="opc_member",
                )
                created += 1
            await _ensure_opc_identity(db, user["id"])
            # 迁移即接管：删掉旧 accounts 行，避免同一逻辑账号落在两套表（多余账号）。
            conn.execute("DELETE FROM accounts WHERE id=?", (row["id"],))
            migrated += 1
        conn.commit()
        log.info("accounts→users 迁移完成：共 %s 条，新建 %s 条（旧 accounts 行已清理）", migrated, created)
    finally:
        conn.close()


async def run() -> None:
    db = Database()
    try:
        await platform_seed(db.session)
        await db.session.commit()
        log.info("平台种子完成：%s", config.DATABASE_URL)
        _seed_training()
        await _migrate_accounts_to_users(db)
    except Exception as e:  # noqa: BLE001
        await db.session.rollback()
        log.error("种子失败：%s", e)
        raise
    finally:
        await db.close()


if __name__ == "__main__":
    asyncio.run(run())