"""数据核验日报(每日 18:30):RIIN/SDS 数量一致性 + 状态差异 + OCR 当日 + 失败任务回顾。

对应 daily-report deployment,cron 30 18 * * *。报告结构:
1. RIIN/SDS:先报订单数量(远程 vs 本地,有差异修复后重数)与商品行数是否一致;
   再报核验时发现多少单状态不符(已自动刷新修复)。subflow 复用 riin/sds-verify。
2. OCR:今天处理了多少订单、识别失败多少(按 ocrProcessedAt 盖章统计)。
3. 失败任务:近 24h 哪些 workflow、哪些 run、失败几次、何时失败(事件报警的兜底汇总)。

消息排版遵循 WeCom aibot markdown 子集(无表格、无 font 标签,引用块 + emoji)。
"""

from __future__ import annotations

from datetime import datetime, timedelta

from prefect import flow

from flows.monitor.device_check import check_prefect_failures
from flows.riin.verify import riin_verify
from flows.sds.verify import sds_verify
from flows.shared import SyncDB, emit_sync_summary, send_markdown, start_of_day


def _affected_units(diff: dict) -> int:
    """状态不符单数 ≈ 本地比远程多的状态计数之和(远程改了状态的单)。"""
    return sum(v for v in (diff or {}).values() if v > 0)


def _system_lines(name: str, report: dict, goods: dict, lines: list[str]) -> bool:
    """单系统一行结论:数量(远程 vs 本地,一致只显示一个数)+商品;状态不符进引用行。"""
    vr = (report.get("verifyReport") or {}) if isinstance(report, dict) else {}
    days_r = vr.get("days") or []
    post = vr.get("post")
    if post:
        remote_t, local_t = post["remote"], post["local"]
    else:
        remote_t = sum(d.get("remote", 0) for d in days_r)
        local_t = sum(d.get("local", 0) for d in days_r)
    ok = remote_t == local_t  # 数量一致只看总量;状态差异属第二段,不混入数量结论

    g = goods or {}
    zero = g.get("zeroGoodsOrders", 0)
    goods_txt = f"{g.get('goods', 0):,} 行" + (f'（<font color="warning">缺 {zero:,}</font>）' if zero else "")
    if ok:
        order_txt = f"订单 {remote_t:,} <font color=\"info\">一致</font>"
    else:
        order_txt = f"订单 远程 {remote_t:,} / 本地 {local_t:,} <font color=\"warning\">不一致</font>"
    lines.append(f"**{name}** {order_txt} · 商品 {goods_txt}")

    diff_days = [d for d in days_r if not d.get("ok")]
    diff_units = sum(_affected_units(d.get("diff")) for d in diff_days)
    if diff_units:
        lines.append(f"> 状态不符约 {diff_units:,} 单（{len(diff_days)} 天），已自动刷新修复")
    return (not ok) or bool(zero)


def build_daily_message(
    days: int, window: str, riin: dict, sds: dict,
    goods: dict, ocr_today: dict, ocr_pending: int, failures: list[dict],
) -> tuple[str, bool]:
    """拼装日报 markdown,返回 (消息, 是否需关注)。单行结论 + 引用详情的紧凑排版。"""
    lines = [f"## 数据核验日报 {datetime.now():%m-%d %H:%M}（近 {days} 天 {window}）"]
    attention = False

    for name, report in (("RIIN", riin), ("SDS", sds)):
        try:
            attention |= _system_lines(name, report, (goods or {}).get(name), lines)
        except Exception as err:  # noqa: BLE001
            lines.append(f"**{name}** 核验结果解析失败：{err}")
            attention = True

    processed, failed = (ocr_today or {}).get("processed", 0), (ocr_today or {}).get("failed", 0)
    ocr_txt = f"**OCR** 今日处理 {processed:,} · 识别失败 "
    ocr_txt += f'<font color="warning">{failed:,}</font>' if failed else "0"
    if ocr_pending:
        ocr_txt += f" · 待处理 {ocr_pending:,}"
    lines.append(ocr_txt)

    if failures:
        attention = True
        lines.append(f'**任务** 失败 <font color="warning">{len(failures)} 次</font>（24h）')
        for f in failures[:6]:
            start = (f.get("start") or "")[5:]  # MM-DD HH:MM
            lines.append(f"> {f.get('flow', '?')}：{f.get('name', '?')} {f.get('state', '?')} {start}")
        if len(failures) > 6:
            lines.append(f"> …等共 {len(failures)} 次")
    else:
        lines.append("**任务** 失败 0 次（24h）")

    lines.append('<font color="warning">存在需关注项，见上</font>' if attention
                 else '<font color="info">数据全部一致，无异常</font>')
    return "\n".join(lines), attention


@flow(name="daily-report", log_prints=True)
def daily_report(days: int = 7) -> dict:
    """近 N 天数据核验 + 商品完整性 + OCR/失败回顾,发企微群日报。"""
    today = start_of_day(datetime.now())
    window_start = today - timedelta(days=days)
    window_end = today  # 与 verify 的 recent 约定一致:近 N 天、不含今天

    riin = riin_verify(mode="recent", recent_days=days)
    sds = sds_verify(mode="recent", recent_days=days)

    db = SyncDB()
    goods = {sys: db.get_goods_integrity(sys, window_start, window_end) for sys in ("RIIN", "SDS")}
    ocr_today = db.count_ocr_today(today)
    ocr = db.count_ocr_status()
    failures = check_prefect_failures(hours=24)

    window = f"{window_start:%m-%d}~{window_end:%m-%d}"
    content, attention = build_daily_message(days, window, riin, sds, goods,
                                             ocr_today, ocr.get("pending", 0), failures)

    sent = send_markdown(content)
    emit_sync_summary("数据核验日报", [
        ("核验窗口", f"近{days}天"), ("需关注", "是" if attention else "否"),
        ("RIIN 零商品订单", goods["RIIN"]["zeroGoodsOrders"]),
        ("RIIN 商品无名称", goods["RIIN"]["goodsNoName"]),
        ("SDS 零商品订单", goods["SDS"]["zeroGoodsOrders"]),
        ("SDS 商品无名称", goods["SDS"]["goodsNoName"]),
        ("全库孤儿商品", goods["RIIN"]["orphanGoods"]),
        ("OCR 今日处理", ocr_today.get("processed", 0)), ("OCR 今日失败", ocr_today.get("failed", 0)),
        ("OCR 待处理", ocr.get("pending", 0)), ("失败 runs(24h)", len(failures)),
        ("已发企微", "是" if sent else "否"),
    ])
    return {"attention": attention, "sent": sent,
            "goods": goods, "ocrToday": ocr_today, "failures24h": len(failures)}


if __name__ == "__main__":
    daily_report.serve(name="daily-report", cron="30 18 * * *")