"""FastAPI 入口 + 启动钩子。"""
from __future__ import annotations

import json
import os
import sys
from pathlib import Path

# 确保项目根在 sys.path
_PROJECT_ROOT = Path(__file__).resolve().parent.parent.parent
if str(_PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(_PROJECT_ROOT))

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles

from app.core.config import settings
from app.core.utils.logging import get_logger, setup_logging
from app.api.routes import health, sync, datasources, schedule, dashboard, config

setup_logging()
logger = get_logger("api")

app = FastAPI(
    title="Market Data Sync API",
    version="0.1.0",
    description="股票市场数据定时同步与管理",
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_methods=["*"],
    allow_headers=["*"],
)

app.include_router(health.router)
app.include_router(sync.router)
app.include_router(datasources.router)
app.include_router(schedule.router)
app.include_router(dashboard.router)
app.include_router(config.router)

# 看板 HTML 静态文件
import pathlib
_static_dir = pathlib.Path(__file__).resolve().parent / "static"
if _static_dir.exists():
    app.mount("/static", StaticFiles(directory=str(_static_dir)), name="static")


# ── 启动钩子 ──────────────────────────────────────────────────────────


@app.on_event("startup")
def _startup():
    logger.info("[startup] market_data_sync 启动")

    # 1. 注册数据源
    from app.core.datasource.registry import build_default_registry
    from app.core.datasource.base import registry
    build_default_registry()
    logger.info(f"[startup] 已注册 {len(registry.all())} 个数据源")

    # 2. seed 数据源定义到 config 表
    from app.core.datasource.registry import seed_datasource_configs
    seed_datasource_configs()

    # 3. seed 默认数据集注册
    from app.core.sync.registry import seed_sync_registry
    seed_sync_registry()

    # 4. 启动时恢复卡死的 sync 任务
    from app.core.sync.registry import recover_interrupted_syncs
    n = recover_interrupted_syncs()
    if n > 0:
        logger.warning(f"[startup] 恢复了 {n} 个中断的同步任务")

    # 5. seed 节假日
    from app.core.db import ops as db_ops
    if settings.holidays_list:
        db_ops.upsert_config(
            "trading_calendar_holidays",
            json.dumps(settings.holidays_list, ensure_ascii=False),
            category="general",
            description="A 股休市日",
        )

    # 6. seed 默认计划任务
    if settings.scheduler_auto_seed:
        from app.core.scheduler.scheduler import seed_schedule_configs
        seed_schedule_configs()

    # 7. 注册 sync job + 启动调度器
    from app.core.scheduler.scheduler import register_sync_jobs, start_scheduler
    register_sync_jobs()
    start_scheduler()

    # 8. 启动数据源健康监控
    from app.core.datasource.registry import start_health_monitor
    start_health_monitor()

    logger.info("[startup] 完成")