from __future__ import annotations

import os
import uuid

import pytest

pytestmark = pytest.mark.integration


def test_entity_resolution_persists_review_merge_and_rollback(monkeypatch):
    platform_url = os.environ.get("TEST_DATABASE_URL")
    if not platform_url:
        pytest.skip("TEST_DATABASE_URL is required")

    monkeypatch.setenv("DATABASE_URL", platform_url)
    from app import create_app, db
    from app.core.data_research.device_asset_repository import (
        SqlAlchemyDeviceAssetRepository,
    )
    from app.core.data_research.device_assets import DeviceAssetService
    from app.core.data_research.device_entity_repository import (
        SqlAlchemyDeviceEntityResolutionRepository,
    )
    from app.core.data_research.device_entity_resolution import (
        DeviceEntityResolutionService,
    )
    from app.models.data_research import (
        DeviceAsset,
        DeviceAssetSourceMapping,
        DeviceAssetVersion,
        DeviceEntityMatchCandidate,
        DeviceEntityMatchReview,
        DeviceEntityMergeEvent,
        DeviceEntityMergeRollback,
        IngestionSource,
    )

    app = create_app()
    app.config.update(TESTING=True)
    source_uids = [str(uuid.uuid4()), str(uuid.uuid4())]
    asset_uids = []
    candidate_uid = None
    merge_uid = None
    try:
        with app.app_context():
            for index, source_uid in enumerate(source_uids, start=1):
                db.session.add(
                    IngestionSource(
                        uid=source_uid,
                        source_type="database",
                        name=f"WP06 实体匹配测试源 {index}",
                        config={
                            "database_type": "postgresql",
                            "database": f"wp06_{index}",
                            "schema": "asset",
                        },
                        permission_scope={},
                        status="active",
                        created_by="integration-test",
                    )
                )
            db.session.commit()

            assets = DeviceAssetService(
                SqlAlchemyDeviceAssetRepository(db.session),
                commit=db.session.commit,
                rollback=db.session.rollback,
            )
            for source_uid, source_code in zip(
                source_uids,
                ("EQ-WP06-001", "EQ-WP06-001"),
                strict=True,
            ):
                result = assets.import_records(
                    {
                        "source_uid": source_uid,
                        "source_entity": "asset.equipment",
                        "records": [
                            {
                                "asset_type": "device",
                                "source_code": source_code,
                                "name": "WP06 循环水泵",
                                "location": "动力车间",
                                "organization": "设备动力部",
                                "responsible_person": "张工",
                                "attributes": {"model": "P-WP06"},
                            }
                        ],
                    },
                    actor_uid="integration-test",
                )
                asset_uids.append(result.items[0].asset.uid)

            repository = SqlAlchemyDeviceEntityResolutionRepository(
                db.session
            )
            service = DeviceEntityResolutionService(
                repository,
                review_authorizer=lambda _actor_uid: None,
                commit=db.session.commit,
                rollback=db.session.rollback,
            )
            generated = service.generate(
                {"asset_type": "device", "threshold": 0.98, "limit": 100},
                actor_uid="editor-test",
            )
            owned = [
                item
                for item in generated.records
                if {item.left_asset_uid, item.right_asset_uid}
                == set(asset_uids)
            ]
            assert len(owned) == 1
            candidate = owned[0]
            candidate_uid = candidate.uid

            merged, review, merge = service.review(
                candidate.uid,
                {
                    "decision": "approve",
                    "canonical_asset_uid": asset_uids[0],
                    "expected_version": 1,
                    "reason": "集成测试证据一致",
                },
                actor_uid="admin-test",
            )
            merge_uid = merge.uid

            assert merged.status == "merged"
            assert review.decision == "approve"
            assert repository.active_merge_for_member(asset_uids[1]).uid == (
                merge.uid
            )
            assert merge.snapshot["canonical"]["uid"] == asset_uids[0]
            assert len(repository.list_reviews(candidate.uid)) == 1

            rolled_back, rollback = service.rollback(
                merge.uid,
                {
                    "expected_version": 2,
                    "reason": "集成测试回滚",
                },
                actor_uid="admin-test",
            )
            assert rolled_back.status == "rolled_back"
            assert rollback.snapshot["merge"]["member_asset_uid"] == (
                asset_uids[1]
            )
            assert repository.active_merge_for_member(asset_uids[1]) is None
            assert len(repository.list_rollbacks(merge.uid)) == 1
    finally:
        with app.app_context():
            if merge_uid:
                db.session.query(DeviceEntityMergeRollback).filter_by(
                    merge_uid=merge_uid
                ).delete(synchronize_session=False)
            if candidate_uid:
                db.session.query(DeviceEntityMergeEvent).filter_by(
                    candidate_uid=candidate_uid
                ).delete(synchronize_session=False)
                db.session.query(DeviceEntityMatchReview).filter_by(
                    candidate_uid=candidate_uid
                ).delete(synchronize_session=False)
                db.session.query(DeviceEntityMatchCandidate).filter_by(
                    uid=candidate_uid
                ).delete(synchronize_session=False)
            if asset_uids:
                db.session.query(DeviceAssetVersion).filter(
                    DeviceAssetVersion.asset_uid.in_(asset_uids)
                ).delete(synchronize_session=False)
                db.session.query(DeviceAssetSourceMapping).filter(
                    DeviceAssetSourceMapping.asset_uid.in_(asset_uids)
                ).delete(synchronize_session=False)
                db.session.query(DeviceAsset).filter(
                    DeviceAsset.uid.in_(asset_uids)
                ).delete(synchronize_session=False)
            db.session.query(IngestionSource).filter(
                IngestionSource.uid.in_(source_uids)
            ).delete(synchronize_session=False)
            db.session.commit()