import json
import pytest
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.pool import StaticPool

from app.database import Base
from app.models.upstream import Upstream
from app.models.upstream_key import UpstreamGeneratedKey
from app.models.website import Website, WebsiteGroupBinding
from app.routers.websites import organize_website_groups


@pytest.fixture()
def db_session():
    engine = create_engine(
        "sqlite://",
        connect_args={"check_same_thread": False},
        poolclass=StaticPool,
    )
    # Ensure all models are created
    from app.models import admin_user, upstream, snapshot, webhook_config, notification_log, custom_page, website, revoked_token, upstream_key
    Base.metadata.create_all(bind=engine)
    TestingSessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
    db = TestingSessionLocal()
    try:
        yield db
    finally:
        db.close()
        Base.metadata.drop_all(bind=engine)


def test_organize_groups_full_scenarios(db_session, monkeypatch):
    """测试一键整理分组的各种核心场景：
    1. 已有 Key 未导入时，创建目标账号并绑定目标分组
    2. 已导入且目标账号存在时，不重复创建（若未绑定目标分组则补齐绑定）
    3. 已导入但目标账号不存在时，清理旧标记并重建
    4. 绑定关系存在但没有对应 Key 时，返回 missing_key
    5. 多个目标分组、多上游分组绑定时，正确分类
    """
    # 1. 建立测试 Website 和 Upstream
    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    u1 = Upstream(name="U1", base_url="http://u1")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    # 2. 建立绑定关系
    # 绑定 1：目标分组 TG1 ↔ 上游分组 G1（有 Key 未导入），G2（没有 Key — 对应 missing_key）
    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([
            {"upstream_id": u1.id, "group_id": "G1"},
            {"upstream_id": u1.id, "group_id": "G2"},
        ]),
        enabled=True
    )
    # 绑定 2：目标分组 TG2 ↔ 上游分组 G3（已导入且账号仍存在），G4（已导入但账号已删除）
    b2 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG2",
        target_group_name="TG2-Group",
        source_groups_json=json.dumps([
            {"upstream_id": u1.id, "group_id": "G3"},
            {"upstream_id": u1.id, "group_id": "G4"},
        ]),
        enabled=True
    )
    db_session.add_all([b1, b2])
    db_session.commit()

    # 3. 建立上游 Key 记录
    # G1: 未导入 Key
    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G1",
        group_name="G1-Name",
        key_name="Key-G1",
        key_value="sk-g1-secret",
        status="created",
    )
    # G3: 已导入且账号存在
    k3 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G3",
        group_name="G3-Name",
        key_name="Key-G3",
        key_value="sk-g3-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G3",
        imported_target_group_id="TG2",
    )
    # G4: 已导入但账号已删除
    k4 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G4",
        group_name="G4-Name",
        key_name="Key-G4",
        key_value="sk-g4-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G4-DELETED",
        imported_target_group_id="TG2",
    )
    db_session.add_all([k1, k3, k4])
    db_session.commit()

    # 4. Mock Sub2ApiWebsiteClient 交互
    created_accounts = []
    updated_accounts = []

    class MockClient:
        def __init__(self, **kwargs):
            pass
        def __enter__(self):
            return self
        def __exit__(self, *a):
            pass
        def get_groups(self, *a, **kw):
            return [
                {"id": "TG1", "name": "TG1-Group"},
                {"id": "TG2", "name": "TG2-Group"},
            ]
        def list_accounts(self):
            # ACC-G3 仍存在，ACC-G4-DELETED 不在此列表中代表已被删除
            # 另外，我们假设 ACC-G3 目前绑定的 group_ids 是 [999]，即不包含 TG2 (或整型数值)
            return [
                {
                    "id": "ACC-G3",
                    "name": "SmartUp-G3-ACC",
                    "group_ids": [999],
                }
            ]
        def extract_id(self, val):
            return val.get("id") if isinstance(val, dict) else str(val)
        def create_account(self, body):
            # 模拟创建账号
            acc_id = f"NEW-{body['name']}"
            new_acc = {"id": acc_id, "name": body["name"], "group_ids": body["group_ids"]}
            created_accounts.append(new_acc)
            return new_acc
        def update_account(self, account_id, body):
            # 模拟更新账号的分组绑定
            updated_accounts.append((account_id, body))
            return {"id": account_id, "group_ids": body.get("group_ids")}

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    # 5. 执行一键整理
    response = organize_website_groups(wid=w.id, db=db_session)

    # 6. 断言结果
    assert response.success is True
    # 整理完成：已创建 1 / 已重建 1 / 已存在已迁移 1 / 缺少 Key 1
    assert "已创建 1" in response.message
    assert "已重建 1" in response.message
    assert "已存在已迁移 1" in response.message
    assert "缺少 Key 1" in response.message

    items = response.items
    assert len(items) == 4

    # 按 target_group_id 分类校验
    # TG1 分组下的 G1 (已创建)
    item_g1 = next(item for item in items if item.target_group_id == "TG1" and item.source_group_id == "G1")
    assert item_g1.status == "created"
    assert item_g1.key_name == "Key-G1"
    assert item_g1.account_id.startswith("NEW-U1-")

    # TG1 分组下的 G2 (缺少 Key)
    item_g2 = next(item for item in items if item.target_group_id == "TG1" and item.source_group_id == "G2")
    assert item_g2.status == "missing_key"
    assert item_g2.message == "请先生成上游 Key"

    # TG2 分组下的 G3 (已存在并补齐)
    item_g3 = next(item for item in items if item.target_group_id == "TG2" and item.source_group_id == "G3")
    assert item_g3.status == "exists"
    assert "已迁移到目标分组" in item_g3.message
    # 校验是否触发了 update_account 补齐了 TG2
    assert len(updated_accounts) == 1
    assert updated_accounts[0][0] == "ACC-G3"
    # TG2 (或者其数值) 应该在更新后的 group_ids 中
    assert "TG2" in updated_accounts[0][1]["group_ids"] or 999 in updated_accounts[0][1]["group_ids"]

    # TG2 分组下的 G4 (清理后重建)
    item_g4 = next(item for item in items if item.target_group_id == "TG2" and item.source_group_id == "G4")
    assert item_g4.status == "recreated"
    assert item_g4.message == "清理后重建账号"
    assert item_g4.account_id.startswith("NEW-U1-")

    # 7. 检查数据库中 Key 记录的状态变化
    db_session.refresh(k1)
    db_session.refresh(k3)
    db_session.refresh(k4)

    assert k1.imported_website_id == w.id
    assert k1.imported_account_id is not None
    assert k1.imported_target_group_id == "TG1"
    assert k1.status == "imported"

    assert k3.imported_target_group_id == "TG2"

    assert k4.imported_website_id == w.id
    assert k4.imported_account_id is not None
    assert k4.imported_target_group_id == "TG2"
    assert k4.status == "imported"


def test_organize_groups_list_accounts_none_conservatively_skips(db_session, monkeypatch):
    """测试一键整理分组时，若远端账号列表拉取失败返回 None：
    - 已导入的账号不得被清除或重建，而应该保守跳过（状态记为 failed，提示无法校验）。
    - 未导入的账号仍能正常导入创建。
    """
    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    u1 = Upstream(name="U1", base_url="http://u1")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    # 绑定关系：目标分组 TG1 ↔ 上游分组 G1（未导入），G3（已导入）
    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([
            {"upstream_id": u1.id, "group_id": "G1", "group_name": "G1-SourceGroup"},
            {"upstream_id": u1.id, "group_id": "G3", "group_name": "G3-SourceGroup"},
        ]),
        enabled=True
    )
    db_session.add_all([b1])
    db_session.commit()

    # k1: 未导入 Key
    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G1",
        group_name="G1-SourceGroup",
        key_name="Key-G1",
        key_value="sk-g1-secret",
        status="created",
    )
    # k3: 已导入 Key
    k3 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G3",
        group_name="G3-SourceGroup",
        key_name="Key-G3",
        key_value="sk-g3-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G3-EXISTING",
        imported_target_group_id="TG1",
    )
    db_session.add_all([k1, k3])
    db_session.commit()

    created_accounts = []

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw):
            return [{"id": "TG1", "name": "TG1-Group"}]
        def list_accounts(self):
            # 模拟获取失败返回 None！
            return None
        def extract_id(self, val):
            return val.get("id") if isinstance(val, dict) else str(val)
        def create_account(self, body):
            acc_id = f"NEW-{body['name']}"
            new_acc = {"id": acc_id, "name": body["name"], "group_ids": body["group_ids"]}
            created_accounts.append(new_acc)
            return new_acc

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    # 执行一键整理
    response = organize_website_groups(wid=w.id, db=db_session)

    # 断言结果：由于其中有 1 个已导入账号校验失败，response.success 应为 False（有失败项）
    assert response.success is False
    # 统计信息中应该有“已创建 1”与“失败 1”
    assert "已创建 1" in response.message
    assert "失败 1" in response.message

    items = response.items
    assert len(items) == 2

    # G1 (未导入) 仍应该成功创建账号
    item_g1 = next(item for item in items if item.source_group_id == "G1")
    assert item_g1.status == "created"
    assert item_g1.account_id.startswith("NEW-U1-")
    assert item_g1.source_group_name == "G1-SourceGroup" # 校验 group_name 优先从绑定中获取！

    # G3 (已导入) 应该保守跳过
    item_g3 = next(item for item in items if item.source_group_id == "G3")
    assert item_g3.status == "failed"
    assert item_g3.message == "无法校验目标账号状态，已保守跳过"

    # 校验 DB 中的 k3 导入标记和状态绝对不能被清除/变动！
    db_session.refresh(k3)
    assert k3.imported_website_id == w.id
    assert k3.imported_account_id == "ACC-G3-EXISTING"
    assert k3.status == "imported"


def test_organize_groups_streaming_basic_event_sequence(db_session, monkeypatch):
    """流式一键整理：验证基本 NDJSON 事件序列、响应头、total_items 准确性。"""
    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    u1 = Upstream(name="U1", base_url="http://u1")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([
            {"upstream_id": u1.id, "group_id": "G1"},
        ]),
        enabled=True
    )
    db_session.add(b1)

    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G1",
        group_name="G1-Name",
        key_name="Key-G1",
        key_value="sk-g1-secret",
        status="created",
    )
    db_session.add(k1)
    db_session.commit()

    created_accounts = []

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw):
            return [{"id": "TG1", "name": "TG1-Group"}]
        def list_accounts(self): return []
        def extract_id(self, val): return val.get("id") if isinstance(val, dict) else str(val)
        def create_account(self, body):
            acc_id = f"NEW-{body['name']}"
            new_acc = {"id": acc_id, "name": body["name"], "group_ids": body["group_ids"]}
            created_accounts.append(new_acc)
            return new_acc

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    from fastapi.testclient import TestClient
    from app.main import app
    from app.database import get_db
    from app.utils.auth import get_current_user

    app.dependency_overrides[get_db] = lambda: db_session
    app.dependency_overrides[get_current_user] = lambda: None

    try:
        client = TestClient(app)
        resp = client.post(f"/api/websites/{w.id}/groups/organize/stream")
        assert resp.status_code == 200
        assert resp.headers["content-type"] == "application/x-ndjson"
        assert resp.headers.get("cache-control") == "no-cache"
        assert resp.headers.get("x-accel-buffering") == "no"

        lines = [line if isinstance(line, str) else line.decode("utf-8") for line in resp.iter_lines() if line]
        parsed_events = [json.loads(line) for line in lines]

        # Event sequence: start → item → complete
        assert len(parsed_events) >= 2
        assert parsed_events[0]["event"] == "start"
        assert parsed_events[0]["data"]["total_items"] == 1

        item_events = [e for e in parsed_events if e["event"] == "item"]
        assert len(item_events) == 1
        assert item_events[0]["data"]["source_group_id"] == "G1"
        assert item_events[0]["data"]["status"] == "created"

        complete_event = next(e for e in parsed_events if e["event"] == "complete")
        assert complete_event["data"]["success"] is True
    finally:
        app.dependency_overrides.clear()


def test_organize_groups_streaming_409_concurrent_lock(db_session, monkeypatch):
    """流式一键整理：同一网站并发调用返回 409 错误。"""
    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    db_session.add(w)
    db_session.commit()
    db_session.refresh(w)

    # Mock to make the first call run long enough to trigger concurrency
    import time
    original_generator = None

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw): return [{"id": "TG1", "name": "TG1-Group"}]
        def list_accounts(self): return []
        def extract_id(self, val): return val.get("id") if isinstance(val, dict) else str(val)

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    from fastapi.testclient import TestClient
    from app.main import app
    from app.database import get_db
    from app.utils.auth import get_current_user

    app.dependency_overrides[get_db] = lambda: db_session
    app.dependency_overrides[get_current_user] = lambda: None

    try:
        client = TestClient(app)
        # First request starts the task lock
        resp1 = client.post(f"/api/websites/{w.id}/groups/organize/stream")
        assert resp1.status_code == 200

        # Second request while first is still "running" (lock not yet released)
        # But the first request already completed, so we need to simulate
        # by calling the task lock manually.
        from app.routers.websites import _try_start_task, _finish_task
        ok, _task_token = _try_start_task(w.id, "organize")
        assert ok
        try:
            resp2 = client.post(f"/api/websites/{w.id}/groups/organize/stream")
            assert resp2.status_code == 200
            lines = [line if isinstance(line, str) else line.decode("utf-8") for line in resp2.iter_lines() if line]
            parsed_events = [json.loads(line) for line in lines]
            assert len(parsed_events) == 1
            assert parsed_events[0]["event"] == "error"
            assert "正在执行中" in parsed_events[0]["data"]["message"]
        finally:
            _finish_task(w.id, "organize", _task_token)

        # Task lock released: third request should succeed
        resp3 = client.post(f"/api/websites/{w.id}/groups/organize/stream")
        assert resp3.status_code == 200
    finally:
        app.dependency_overrides.clear()


def test_organize_groups_streaming_non_sub2api_returns_error_event(db_session, monkeypatch):
    """流式一键整理：非 sub2api 网站返回 error 事件而非 HTTP 错误。"""
    w = Website(
        name="W1",
        site_type="other",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    db_session.add(w)
    db_session.commit()
    db_session.refresh(w)

    from fastapi.testclient import TestClient
    from app.main import app
    from app.database import get_db
    from app.utils.auth import get_current_user

    app.dependency_overrides[get_db] = lambda: db_session
    app.dependency_overrides[get_current_user] = lambda: None

    try:
        client = TestClient(app)
        resp = client.post(f"/api/websites/{w.id}/groups/organize/stream")
        assert resp.status_code == 200
        lines = [line if isinstance(line, str) else line.decode("utf-8") for line in resp.iter_lines() if line]
        parsed_events = [json.loads(line) for line in lines]
        assert len(parsed_events) == 1
        assert parsed_events[0]["event"] == "error"
    finally:
        app.dependency_overrides.clear()


def test_organize_groups_streaming_total_items_matches_items(db_session, monkeypatch):
    """流式一键整理：total_items 应当等于实际产生的 item 数量。"""
    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    u1 = Upstream(name="U1", base_url="http://u1")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    # Two bindings, each with one key
    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([{"upstream_id": u1.id, "group_id": "G1"}]),
        enabled=True
    )
    b2 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG2",
        target_group_name="TG2-Group",
        source_groups_json=json.dumps([{"upstream_id": u1.id, "group_id": "G2"}]),
        enabled=True
    )
    db_session.add_all([b1, b2])

    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id, group_id="G1", group_name="G1-Name",
        key_name="Key-G1", key_value="sk-g1", status="created",
    )
    k2 = UpstreamGeneratedKey(
        upstream_id=u1.id, group_id="G2", group_name="G2-Name",
        key_name="Key-G2", key_value="sk-g2", status="created",
    )
    db_session.add_all([k1, k2])
    db_session.commit()

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw):
            return [{"id": "TG1", "name": "TG1-Group"}, {"id": "TG2", "name": "TG2-Group"}]
        def list_accounts(self): return []
        def extract_id(self, val): return val.get("id") if isinstance(val, dict) else str(val)
        def create_account(self, body):
            return {"id": "NEW-" + body["name"], "name": body["name"], "group_ids": body["group_ids"]}

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    from fastapi.testclient import TestClient
    from app.main import app
    from app.database import get_db
    from app.utils.auth import get_current_user

    app.dependency_overrides[get_db] = lambda: db_session
    app.dependency_overrides[get_current_user] = lambda: None

    try:
        client = TestClient(app)
        resp = client.post(f"/api/websites/{w.id}/groups/organize/stream")
        assert resp.status_code == 200
        lines = [line if isinstance(line, str) else line.decode("utf-8") for line in resp.iter_lines() if line]
        parsed_events = [json.loads(line) for line in lines]

        start_event = next(e for e in parsed_events if e["event"] == "start")
        item_events = [e for e in parsed_events if e["event"] == "item"]
        assert start_event["data"]["total_items"] == len(item_events)
    finally:
        app.dependency_overrides.clear()


def test_organize_groups_original_json_endpoint_still_works(db_session, monkeypatch):
    """一键整理 JSON 接口的回归测试：HTTP 状态码和错误处理仍然正确。"""
    # Non-sub2api → HTTP 400
    w = Website(
        name="W1", site_type="other", base_url="http://w1",
        enabled=True, auth_config_json="{}", timeout_seconds=30
    )
    db_session.add(w)
    db_session.commit()
    db_session.refresh(w)

    from fastapi.testclient import TestClient
    from app.main import app
    from app.database import get_db
    from app.utils.auth import get_current_user

    app.dependency_overrides[get_db] = lambda: db_session
    app.dependency_overrides[get_current_user] = lambda: None

    try:
        client = TestClient(app)
        resp = client.post(f"/api/websites/{w.id}/groups/organize")
        assert resp.status_code == 400
        assert "只支持" in resp.json()["detail"] or "only sub2api" in resp.json()["detail"]
    finally:
        app.dependency_overrides.clear()


def test_organize_groups_json_409_concurrent_lock(db_session, monkeypatch):
    """一键整理 JSON 接口：并发调用返回 HTTP 409。"""
    w = Website(
        name="W1", site_type="sub2api", base_url="http://w1",
        enabled=True, auth_config_json="{}", timeout_seconds=30,
    )
    db_session.add(w)
    db_session.commit()
    db_session.refresh(w)

    from fastapi.testclient import TestClient
    from app.main import app
    from app.database import get_db
    from app.utils.auth import get_current_user

    app.dependency_overrides[get_db] = lambda: db_session
    app.dependency_overrides[get_current_user] = lambda: None

    try:
        client = TestClient(app)
        # Hold lock manually to simulate concurrent request
        from app.routers.websites import _try_start_task, _finish_task
        ok, _task_token = _try_start_task(w.id, "organize")
        assert ok
        try:
            resp = client.post(f"/api/websites/{w.id}/groups/organize")
            assert resp.status_code == 409
            assert "正在执行中" in resp.json()["detail"]
        finally:
            _finish_task(w.id, "organize", _task_token)

        # Lock released: second request should succeed
        resp2 = client.post(f"/api/websites/{w.id}/groups/organize")
        assert resp2.status_code == 200
    finally:
        app.dependency_overrides.clear()


def test_organize_groups_force_alignment(db_session, monkeypatch):
    """测试强对齐场景：
    2. 已存在账号同时有非 SmartUp 分组，整理后保留非 SmartUp 分组。
    3. 已存在账号已经完全一致，整理不重复调用更新接口。
    4. 多目标分组、多上游来源时，每个账号按自己的当前绑定关系对齐。
    """
    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    u1 = Upstream(name="U1", base_url="http://u1")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    # 两个绑定关系：
    # 绑定 1：目标分组 TG1 ↔ G1
    # 绑定 2：目标分组 TG2 ↔ G2
    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([{"upstream_id": u1.id, "group_id": "G1"}]),
        enabled=True
    )
    b2 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG2",
        target_group_name="TG2-Group",
        source_groups_json=json.dumps([{"upstream_id": u1.id, "group_id": "G2"}]),
        enabled=True
    )
    db_session.add_all([b1, b2])
    db_session.commit()

    # 3. 建立 3 个 Key，对应 3 个不同的远端账号状态
    # k1: 原本在 TG_old (旧 SmartUp 分组)，但根据绑定 1 它现在应该在 TG1
    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G1",
        group_name="G1-Group",
        key_name="Key-G1",
        key_value="sk-g1-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G1",
        imported_target_group_id="TG_old", # 旧 SmartUp 分组
    )
    # k2: 已经在 TG2 (正确)，且同时有非 SmartUp 分组 (999) 和另一个旧 SmartUp 分组 (TG1 - 应该被移除)
    k2 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G2",
        group_name="G2-Group",
        key_name="Key-G2",
        key_value="sk-g2-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G2",
        imported_target_group_id="TG2",
    )
    db_session.add_all([k1, k2])
    db_session.commit()

    updated_accounts = []

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw):
            return [
                {"id": "TG1", "name": "TG1-Group"},
                {"id": "TG2", "name": "TG2-Group"},
            ]
        def list_accounts(self):
            return [
                {
                    "id": "ACC-G1",
                    "name": "SmartUp-G1",
                    "group_ids": ["TG_old"], # 包含旧 SmartUp 分组 TG_old，没有 TG1
                },
                {
                    "id": "ACC-G2",
                    "name": "SmartUp-G2",
                    "group_ids": ["TG2", 999, "TG1"], # TG2 是当前正确分组，999 是非托管分组，TG1 是旧托管分组（应移除）
                }
            ]
        def extract_id(self, val):
            return val.get("id") if isinstance(val, dict) else str(val)
        def update_account(self, account_id, body):
            updated_accounts.append((account_id, body))
            return {"id": account_id, "group_ids": body.get("group_ids")}

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    # 执行一键整理
    response = organize_website_groups(wid=w.id, db=db_session)

    assert response.success is True

    # ACC-G1 (G1) 的 group_ids 应变更为 ["TG1"] (TG2 被移除了)
    # ACC-G2 (G2) 的 group_ids 应变更为 [999, "TG2"] (TG1 被移除了，999 保留)
    assert len(updated_accounts) == 2

    # 验证 ACC-G1 变更
    up_g1 = next(item for item in updated_accounts if item[0] == "ACC-G1")
    assert set(str(g) for g in up_g1[1]["group_ids"]) == {"TG1"}

    # 验证 ACC-G2 变更
    up_g2 = next(item for item in updated_accounts if item[0] == "ACC-G2")
    assert set(str(g) for g in up_g2[1]["group_ids"]) == {"999", "TG2"}

    # 验证本地 DB 的标记已被同步更新为正确的 TG1 / TG2
    db_session.refresh(k1)
    db_session.refresh(k2)
    assert k1.imported_target_group_id == "TG1"
    assert k2.imported_target_group_id == "TG2"

    # 验证结果消息汇总包含 aligned 0, migrated 2 (因为两个都发生了迁移/更新)
    assert "已存在已迁移 2" in response.message

    # 让我们跑一次完全一致的再次整理，验证不触发 update_account (已对齐)
    updated_accounts.clear()

    class MockClientAligned(MockClient):
        def list_accounts(self):
            return [
                {
                    "id": "ACC-G1",
                    "name": "SmartUp-G1",
                    "group_ids": ["TG1"],
                },
                {
                    "id": "ACC-G2",
                    "name": "SmartUp-G2",
                    "group_ids": [999, "TG2"],
                }
            ]

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClientAligned)
    response_aligned = organize_website_groups(wid=w.id, db=db_session)
    assert response_aligned.success is True
    # 既然已经一致，不会触发 update_account
    assert len(updated_accounts) == 0
    assert "已存在且已对齐 2" in response_aligned.message


def test_organize_groups_corrects_mismatched_platform_instead_of_recreating(db_session, monkeypatch):
    """测试一键整理遇到已存在账号平台错配时，只调用 update_account() 修正平台，不创建新账号。"""
    from app.models.snapshot import UpstreamRateSnapshot

    w = Website(
        name="W1",
        site_type="sub2api",
        base_url="http://w1",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30
    )
    u1 = Upstream(name="U1", base_url="http://u1")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    # 绑定关系：目标分组 TG1 ↔ G1
    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([{"upstream_id": u1.id, "group_id": "G1"}]),
        enabled=True
    )
    db_session.add(b1)

    # G1: 已导入，导入的目标分组为 TG1，账号为 ACC-G1
    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G1",
        group_name="G1-Group",
        key_name="Key-G1",
        key_value="sk-g1-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G1",
        imported_target_group_id="TG1",
    )
    db_session.add(k1)

    # 写入快照指定平台为 anthropic
    snapshot = UpstreamRateSnapshot(
        upstream_id=u1.id,
        snapshot_json=json.dumps({
            "groups": {
                "G1": {
                    "group_name": "G1-Group",
                    "rate": 0.1,
                    "platform": "anthropic"
                }
            }
        })
    )
    db_session.add(snapshot)
    db_session.commit()

    updated_accounts = []
    create_called = False
    mock_platform = "openai"

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw):
            return [{"id": "TG1", "name": "TG1-Group"}]
        def list_accounts(self):
            return [
                {
                    "id": "ACC-G1",
                    "name": "SmartUp-G1",
                    "group_ids": ["TG1"],
                    "platform": mock_platform,
                }
            ]
        def extract_id(self, val):
            return val.get("id") if isinstance(val, dict) else str(val)
        def create_account(self, body):
            nonlocal create_called
            create_called = True
            return {"id": "NEW-ACC", "name": body["name"], "group_ids": body["group_ids"]}
        def update_account(self, account_id, body):
            nonlocal mock_platform
            updated_accounts.append((account_id, body))
            if "platform" in body:
                mock_platform = body["platform"]
            return {"id": account_id, "platform": body.get("platform")}

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr("app.routers.websites.sync_account_priorities_for_website", lambda db, wid: [])

    response = organize_website_groups(wid=w.id, db=db_session)

    assert response.success is True
    assert not create_called
    assert len(updated_accounts) == 1
    assert updated_accounts[0][0] == "ACC-G1"
    assert updated_accounts[0][1]["platform"] == "anthropic"
    assert "平台从 openai 修正为 anthropic" in response.items[0].message


def _seed_platform_mismatch(db_session, monkeypatch, list_accounts_fn):
    """公用工厂：搭建平台错配场景并注入可定制的 list_accounts。"""
    from app.models.snapshot import UpstreamRateSnapshot

    w = Website(
        name="W-PlatChk",
        site_type="sub2api",
        base_url="http://wp",
        enabled=True,
        auth_config_json="{}",
        timeout_seconds=30,
    )
    u1 = Upstream(name="U-PlatChk", base_url="http://up")
    db_session.add_all([w, u1])
    db_session.commit()
    db_session.refresh(w)
    db_session.refresh(u1)

    b1 = WebsiteGroupBinding(
        website_id=w.id,
        target_group_id="TG1",
        target_group_name="TG1-Group",
        source_groups_json=json.dumps([{"upstream_id": u1.id, "group_id": "G1"}]),
        enabled=True,
    )
    db_session.add(b1)

    k1 = UpstreamGeneratedKey(
        upstream_id=u1.id,
        group_id="G1",
        group_name="G1-Group",
        key_name="Key-G1",
        key_value="sk-g1-secret",
        status="imported",
        imported_website_id=w.id,
        imported_account_id="ACC-G1",
        imported_target_group_id="TG1",
    )
    db_session.add(k1)

    snapshot = UpstreamRateSnapshot(
        upstream_id=u1.id,
        snapshot_json=json.dumps({
            "groups": {
                "G1": {"group_name": "G1-Group", "rate": 0.1, "platform": "anthropic"}
            }
        }),
    )
    db_session.add(snapshot)
    db_session.commit()

    call_count = {"n": 0}

    class MockClient:
        def __init__(self, **kwargs): pass
        def __enter__(self): return self
        def __exit__(self, *a): pass
        def get_groups(self, *a, **kw):
            return [{"id": "TG1", "name": "TG1-Group"}]
        def list_accounts(self):
            call_count["n"] += 1
            return list_accounts_fn(call_count["n"])
        def extract_id(self, val):
            return val.get("id") if isinstance(val, dict) else str(val)
        def update_account(self, account_id, body):
            return {"id": account_id}

    monkeypatch.setattr("app.routers.websites.Sub2ApiWebsiteClient", MockClient)
    monkeypatch.setattr(
        "app.routers.websites.sync_account_priorities_for_website", lambda db, wid: []
    )
    return w


def test_organize_groups_platform_update_remote_silently_ignores(db_session, monkeypatch):
    """复查时远端仍返回旧平台值 → 必须报错，不能静默认为成功。"""

    def list_accounts_fn(call_n):
        # 第 1 次初始列表；第 2 次复查：仍是 openai（忽略了 platform 写入）
        return [{"id": "ACC-G1", "name": "SmartUp-G1", "group_ids": ["TG1"], "platform": "openai"}]

    w = _seed_platform_mismatch(db_session, monkeypatch, list_accounts_fn)
    response = organize_website_groups(wid=w.id, db=db_session)

    failed_items = [item for item in response.items if item.status == "failed"]
    assert len(failed_items) == 1, f"期望 1 个 failed 项，实际：{response.items}"
    assert "不支持修改平台属性" in failed_items[0].message


def test_organize_groups_platform_update_list_returns_none(db_session, monkeypatch):
    """复查时 list_accounts() 返回 None → 必须报错，不能静默成功。"""

    def list_accounts_fn(call_n):
        if call_n == 1:
            return [{"id": "ACC-G1", "name": "SmartUp-G1", "group_ids": ["TG1"], "platform": "openai"}]
        return None  # 复查时列表拉取失败

    w = _seed_platform_mismatch(db_session, monkeypatch, list_accounts_fn)
    response = organize_website_groups(wid=w.id, db=db_session)

    failed_items = [item for item in response.items if item.status == "failed"]
    assert len(failed_items) == 1, f"期望 1 个 failed 项，实际：{response.items}"
    assert "复查失败" in failed_items[0].message


def test_organize_groups_platform_update_account_missing_from_list(db_session, monkeypatch):
    """复查时账号从列表中消失 → 必须报错，不能静默成功。"""

    def list_accounts_fn(call_n):
        if call_n == 1:
            return [{"id": "ACC-G1", "name": "SmartUp-G1", "group_ids": ["TG1"], "platform": "openai"}]
        return []  # 复查时账号消失

    w = _seed_platform_mismatch(db_session, monkeypatch, list_accounts_fn)
    response = organize_website_groups(wid=w.id, db=db_session)

    failed_items = [item for item in response.items if item.status == "failed"]
    assert len(failed_items) == 1, f"期望 1 个 failed 项，实际：{response.items}"
    assert "复查失败" in failed_items[0].message