"""定时下派通道测试（docs/order-gateway.md §12）

collector 靠 QueryQueue + GatewayDB 真实装配驱动（与 test_gateway_queries.py 同一套
思路），用「真实队列 + 假 worker 回结果」来模拟完整闭环：

    派 order_list → lease → worker 回带订单的 result → collector 收割 → 写进
    account_orders 编目（回写网关）→ 派 order_detail → 回 detail → 更新配送阶段

跑测试时关掉 collector 的常驻循环，只驱动单次 tick()/各方法，避免引入 sleep。
"""
from __future__ import annotations

from pathlib import Path

import pytest

from app.gateway.collector import OrderDiscoveryCollector, _parse_list_result
from app.gateway.db import GatewayDB
from app.gateway.query_queue import QueryQueue
from app.shared.config import get_settings

TOKEN = get_settings().bearer_token
AUTH = {"Authorization": f"Bearer {TOKEN}"}

ORDER = {
    "order_number": "306087-20260813-0863947697",
    "order_date": "2026-08-13T09:47:28.000Z",
    "shop_id": 306087,
    "shop_name": "テスト店舗",
    "items": [],
}


@pytest.fixture
async def collector(tmp_path: Path, monkeypatch):
    """真实装配的 (collector, db, queue) 三元组，collector 的常驻循环不启动"""
    monkeypatch.setenv("RAKUTEN_ACCOUNT_DISCOVERY_ENABLED", "true")
    get_settings.cache_clear()
    db = GatewayDB(tmp_path / "c.db")
    await db.start()
    queue = QueryQueue(
        db, lease_ttl_seconds=60, query_ttl_seconds=600,
        max_attempts=3, retention_seconds=7 * 24 * 3600,
    )
    c = OrderDiscoveryCollector(
        settings=get_settings(), db=db, query_queue=queue,
    )
    try:
        yield c, db, queue
    finally:
        await db.close()
        get_settings.cache_clear()


async def _complete_query(queue, query_id: str, result: dict, *, success: bool = True):
    """模拟 worker：lease 这张单并回一个结果"""
    leased = await queue.lease(worker_id="w-fake", wait=0, site=None, max_wait=60)
    assert leased.query_id == query_id
    await queue.submit_result(
        query_id, worker_id="w-fake", success=success, result=result,
        error_code=None if success else 1234,
        error_message="" if success else "boom",
    )


# ---- 纯函数：从列表结果里抽规范化订单 ----

def test_parse_list_result_extracts_valid_rows():
    result = {
        "orders": [
            {**ORDER},
            {"order_number": "x", "order_date": "t"},
            {},  # 缺 order_number，应被丢弃
            "not-a-dict",  # 非 dict，应被丢弃
        ]
    }
    rows = _parse_list_result(result)
    assert len(rows) == 2
    assert rows[0]["order_number"] == ORDER["order_number"]


def test_parse_list_result_empty_on_no_orders():
    assert _parse_list_result(None) == []
    assert _parse_list_result({}) == []
    assert _parse_list_result({"orders": "oops"}) == []


# ---- 回写：采集到的订单写进编目 ----

async def test_ingest_list_result_writes_back_new_order(collector):
    c, db, queue = collector
    await c._queue.submit(query_id="q1", site="rakuten", kind="order_list", params={})
    # 模拟 collector 已派这张单并在等结果（_collect_results 只处理 _pending 里的单）
    c._pending["q1"] = "order_list"
    await _complete_query(queue, "q1", {"orders": [ORDER], "window_fully_covered": True})

    await c._collect_results()  # 收割 q1 的结果，回写编目

    row = await db.get_account_order(ORDER["order_number"])
    assert row is not None
    assert row.shop_name == "テスト店舗"
    assert row.delivery_status is None  # 列表结果不带配送阶段，回到编目后仍待详情
    assert row.detail_fetched_at is None


async def test_reingest_same_order_no_duplicate(collector):
    """同一订单反复被采集，编目里只有一行（upsert 以 order_number 为主键）"""
    c, db, _ = collector
    for _ in range(2):
        await c._ingest_list_result({"orders": [ORDER]}, query_id="q")
    rows, total = await db.list_account_orders()
    assert total == 1
    assert rows[0].order_number == ORDER["order_number"]


async def test_list_reingest_preserves_detail_data(collector):
    """订单已取过详情后，再来一轮 list 扫描不得把配送阶段/详情时间抹掉"""
    c, db, _ = collector
    # 先经 detail 沉淀配送阶段
    await c._ingest_list_result({"orders": [ORDER]}, query_id="q")
    await c._ingest_detail_result(
        {
            "order_number": ORDER["order_number"], "found": True,
            "delivery_status": "CHECKING_ORDER", "order_state": "created",
        }
    )
    before = await db.get_account_order(ORDER["order_number"])
    assert before.detail_fetched_at is not None

    # 再来一轮列表扫描
    await c._ingest_list_result({"orders": [ORDER]}, query_id="q2")

    after = await db.get_account_order(ORDER["order_number"])
    assert after.delivery_status == "CHECKING_ORDER"
    assert after.detail_fetched_at == before.detail_fetched_at


async def test_found_false_detail_does_not_wipe_status(collector):
    """详情 found=False（订单还没反映出来）时，不覆盖已沉淀的配送阶段"""
    c, db, _ = collector
    await c._ingest_list_result({"orders": [ORDER]}, query_id="q")
    await c._ingest_detail_result(
        {
            "order_number": ORDER["order_number"], "found": True,
            "delivery_status": "CHECKING_ORDER", "order_state": "created",
        }
    )

    # 一瞬抖动：这单暂时查不到（found=False，结果里配送字段为 null）
    await c._ingest_detail_result(
        {"order_number": ORDER["order_number"], "found": False,
         "delivery_status": None, "order_state": None}
    )

    after = await db.get_account_order(ORDER["order_number"])
    assert after.delivery_status == "CHECKING_ORDER"  # 没被抹掉
    assert after.detail_fetched_at is not None


# ---- 完整闭环：派 list → 消化 → 派 detail → 更新 ----

async def test_full_discovery_loop_populates_catalog(collector):
    """一次 tick 派 list，回来后被写进编目，且触发 detail 下派与更新"""
    c, db, queue = collector

    # 第一次 tick：派出一张 order_list 扫描
    await c._dispatch_list_if_due()
    assert c._pending  # 有一张在飞

    # writer worker 领走并回一个有订单的列表
    (qid,) = c._pending
    await _complete_query(queue, qid, {"orders": [ORDER], "window_fully_covered": True})

    # 收割 + 派 stale detail
    await c.tick()

    # 编目里有了订单
    row = await db.get_account_order(ORDER["order_number"])
    assert row is not None and row.detail_fetched_at is None

    # detail 下派已产生一张 order_detail 单
    pending_detail = [q for q, k in c._pending.items() if k == "order_detail"]
    assert pending_detail

    # worker 回 detail 结果
    dqid = pending_detail[0]
    await _complete_query(
        queue, dqid,
        {
            "order_number": ORDER["order_number"],
            "found": True,
            "delivery_status": "CHECKING_ORDER",
            "order_state": "created",
        },
    )
    await c._collect_results()

    after = await db.get_account_order(ORDER["order_number"])
    assert after.delivery_status == "CHECKING_ORDER"
    assert after.detail_fetched_at is not None


async def test_detail_dispatch_is_same_day_idempotent(collector):
    """同一天内轮询到同一订单，detail 单只派一张（幂等 submit 命中既有单）"""
    c, db, _ = collector
    await c._ingest_list_result({"orders": [ORDER]}, query_id="q")

    await c._dispatch_one_detail(ORDER["order_number"])
    first = set(c._pending)
    await c._dispatch_one_detail(ORDER["order_number"])
    second = set(c._pending)

    assert first == second
    assert len(first) == 1


async def test_stale_detail_not_redispatched_within_day(collector):
    """详情 found=False（订单还没反映）时，当天不再重复派同一订单的详情"""
    c, db, _ = collector
    await c._ingest_list_result({"orders": [ORDER]}, query_id="q")

    # 第一轮：派详情 → 回 found=False → 订单仍算「未取过详情」
    await c._dispatch_stale_details()
    (dqid,) = [q for q, k in c._pending.items() if k == "order_detail"]
    await _complete_query(
        c._queue, dqid,
        {"order_number": ORDER["order_number"], "found": False},
    )
    await c._collect_results()
    assert (await db.get_account_order(ORDER["order_number"])).detail_fetched_at is None

    # 第二轮：不应再为同一订单派详情（当天已派过）
    before = set(c._pending)
    await c._dispatch_stale_details()
    assert set(c._pending) == before


async def test_no_list_redispatch_while_pending(collector):
    """有在飞的 list 单时，即使间隔到了也不重复派"""
    c, _, _ = collector
    await c._dispatch_list_if_due()
    assert len(c._pending) == 1
    # 模拟时间流逝：把 last_list_submitted 拨回到很久以前
    c._last_list_submitted = None
    await c._dispatch_list_if_due()
    # 幂等？list 用的是自动生成的 q- 前缀 id，重新 submit 会再新建——
    # 但「有在飞 list」会挡住。此时 pending 里那张 q- 单还没到终态，不应再派。
    assert len([k for k in c._pending.values() if k == "order_list"]) == 1


# ---- HTTP 层：编目读取与手动触发 ----

@pytest.fixture
def gateway_client(tmp_path: Path, monkeypatch):
    monkeypatch.setenv("RAKUTEN_GATEWAY_DB_PATH", str(tmp_path / "gw.db"))
    monkeypatch.setenv("RAKUTEN_ACCOUNT_DISCOVERY_ENABLED", "false")
    get_settings.cache_clear()
    try:
        from app.gateway.main import create_app
        from fastapi.testclient import TestClient

        app = create_app()
        with TestClient(app) as client:
            yield client
    finally:
        get_settings.cache_clear()


def test_get_cataloged_order_not_found_6005(gateway_client):
    response = gateway_client.get("/api/account/orders/nope", headers=AUTH)
    assert response.status_code == 404
    assert response.json()["code"] == 6005


def test_trigger_discovery_dispatch_list_sweep(gateway_client):
    """手动触发应派一张 order_list 单（走真实队列）"""
    # 触发里 collector 真实存在；手动派单不应因 discovery disabled 而失效——
    # 但这个夹具关了 discovery，trigger 只是 submit 一张单，仍应正常。
    body = gateway_client.post("/api/account/discovery/trigger", headers=AUTH).json()
    assert body["success"] is True
    assert body["data"]["query_id"].startswith("q-")
    # 这张单真的进了查询队列
    detail = gateway_client.get(f"/api/account/queries/{body['data']['query_id']}", headers=AUTH).json()
    assert detail["data"]["kind"] == "order_list"


def test_catalog_endpoints_reject_missing_token(gateway_client):
    assert gateway_client.get("/api/account/orders").status_code == 401
    assert gateway_client.get("/api/account/orders/x").status_code == 401
    assert gateway_client.post("/api/account/discovery/trigger").status_code == 401