"""SDS 增量同步:从数据库最近下单时间增量拉取(无参,全自动)。

对应 sds-incremental-sync。from = floorToHour(MAX(orderedAt)),to = now,按 payDate。
"""

from __future__ import annotations

from datetime import datetime

from prefect import flow, task

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


@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-incremental-sync", log_prints=True)
def sds_incremental_sync() -> dict:
    db = SyncDB()
    latest = db.get_latest_ordered_at("SDS")
    if latest is not None and latest.tzinfo is not None:
        latest = latest.replace(tzinfo=None)
    now = datetime.now()
    from_dt = floor_to_hour(latest) if latest else floor_to_hour(now)
    if from_dt >= now:
        from_dt = floor_to_hour(now)

    params = {"pay_date_begin": format_date(from_dt), "pay_date_end": format_date(now), "size": 500}
    print(f"SDS 增量同步 {params['pay_date_begin']} ~ {params['pay_date_end']}")
    raw = extract_orders(params)
    stats = upsert_records(raw)
    print(f"完成: 订单 {stats['orderCount']} / 商品 {stats['goodsCount']}")
    emit_sync_summary("SDS 增量同步", build_stats_rows("SDS", stats, [("时间范围", f"{params['pay_date_begin']} ~ {params['pay_date_end']}")]))
    return {"syncRange": {"from": params["pay_date_begin"], "to": params["pay_date_end"]}, **stats}


if __name__ == "__main__":
    sds_incremental_sync.serve(name="sds-incremental-sync", cron="15 * * * *")