"""SDS 近期同步:拉取最近 N 天订单(默认 7,1~90),按 createdDate。

对应 sds-recent-sync。from = startOfDay(now - N days),to = startOfDay(today)。
"""

from __future__ import annotations

from datetime import datetime, timedelta

from prefect import flow, task

from flows.sds._pipeline import sync_sds_records
from flows.shared import (
    SyncDB, create_sds_client, fetch_sds_all_pages, format_date, get_channel_type_map,
    refresh_channel_type_map, start_of_day,
)


@task(retries=3, retry_delay_seconds=[3, 6, 9])
def extract_orders(params: dict) -> list:
    client = create_sds_client()
    try:
        return fetch_sds_all_pages(client, params)
    finally:
        client.close()


@task
def upsert_records(raw_orders: list) -> dict:
    client = create_sds_client()
    try:
        channel_map = get_channel_type_map(client)
        return sync_sds_records(raw_orders, channel_map, SyncDB(),
                                channel_refresh=lambda: refresh_channel_type_map(client))
    finally:
        client.close()


@flow(name="sds-recent-sync", log_prints=True)
def sds_recent_sync(recent_days: int = 7) -> dict:
    days = min(max(recent_days, 1), 90)
    now = datetime.now()
    from_dt = start_of_day(now - timedelta(days=days))
    to_dt = start_of_day(now)

    params = {"created_date_begin": format_date(from_dt), "created_date_end": format_date(to_dt), "size": 500}
    print(f"SDS 近期同步 近 {days} 天 {params['created_date_begin']} ~ {params['created_date_end']}")
    raw = extract_orders(params)
    stats = upsert_records(raw)
    print(f"完成: 订单 {stats['orderCount']} / 商品 {stats['goodsCount']}")
    return {"syncRange": {"from": params["created_date_begin"], "to": format_date(now)},
            "recentDays": days, **stats}


if __name__ == "__main__":
    sds_recent_sync.serve(name="sds-recent-sync", cron="45 * * * *")