"""测试 Instance 新增字段：access_mode, workflow_id, excluded_databases, mask_fields"""
import pytest
from tests.conftest import auth_header

pytestmark = pytest.mark.skip(reason="Skip: awaiting Go backend alignment")


@pytest.mark.asyncio
async def test_create_instance_with_full_fields(client, admin_token):
    """创建数据源：完整字段"""
    res = await client.post("/api/v1/instances", json={
        "name": "prod-mysql-只读库",
        "db_type": "mysql",
        "host": "mysql.example.com",
        "port": 3306,
        "username": "admin",
        "password": "***",
        "env": "production",
        "access_mode": "read",
        "excluded_databases": ["sys", "information_schema", "mysql"],
        "mask_fields": [
            {"table": "users", "field": "phone", "rule": "mask"},
            {"table": "users", "field": "id_card", "rule": "hide"},
        ],
    }, headers=auth_header(admin_token))
    assert res.status_code == 201
    data = res.json()
    assert data["access_mode"] == "read"
    assert data["workflow_id"] is None
    assert data["excluded_databases"] == ["sys", "information_schema", "mysql"]
    assert len(data["mask_fields"]) == 2
    assert data["mask_fields"][0]["table"] == "users"


@pytest.mark.asyncio
async def test_create_instance_default_access_mode(client, admin_token):
    """默认连接模式为 readwrite"""
    res = await client.post("/api/v1/instances", json={
        "name": "test-default",
        "db_type": "mysql",
        "host": "127.0.0.1",
        "port": 3306,
        "username": "root",
        "password": "***",
    }, headers=auth_header(admin_token))
    assert res.status_code == 201
    assert res.json()["access_mode"] == "readwrite"


@pytest.mark.asyncio
async def test_list_instance_includes_new_fields(client, admin_token):
    """列表接口返回新字段"""
    await client.post("/api/v1/instances", json={
        "name": "list-test",
        "db_type": "postgres",
        "host": "10.0.0.1",
        "port": 5432,
        "username": "postgres",
        "password": "***",
        "access_mode": "write",
    }, headers=auth_header(admin_token))

    res = await client.get("/api/v1/instances", headers=auth_header(admin_token))
    assert res.status_code == 200
    items = res.json()
    found = [i for i in items if i["name"] == "list-test"]
    assert len(found) == 1
    assert found[0]["access_mode"] == "write"
    assert "workflow_id" in found[0]


@pytest.mark.asyncio
async def test_update_instance_fields(client, admin_token):
    """更新字段"""
    create = await client.post("/api/v1/instances", json={
        "name": "update-fields",
        "db_type": "mysql",
        "host": "127.0.0.1",
        "port": 3306,
        "username": "root",
        "password": "***",
    }, headers=auth_header(admin_token))
    iid = create.json()["id"]

    res = await client.put(f"/api/v1/instances/{iid}", json={
        "access_mode": "read",
        "excluded_databases": ["test_db"],
    }, headers=auth_header(admin_token))
    assert res.status_code == 200
    data = res.json()
    assert data["access_mode"] == "read"
    assert data["excluded_databases"] == ["test_db"]


@pytest.mark.asyncio
async def test_instance_null_json_fields(client, admin_token):
    """不传新字段时，返回 null"""
    res = await client.post("/api/v1/instances", json={
        "name": "minimal",
        "db_type": "mysql",
        "host": "127.0.0.1",
        "port": 3306,
        "username": "root",
        "password": "***",
    }, headers=auth_header(admin_token))
    assert res.status_code == 201
    data = res.json()
    assert data["workflow_id"] is None
    assert data["excluded_databases"] is None
    assert data["mask_fields"] is None


@pytest.mark.asyncio
async def test_instance_workflow_id_association(client, admin_token):
    """数据源关联审批流程"""
    # 创建 workflow
    wf_res = await client.post("/api/v1/workflows", json={
        "name": "通用生产审批流程",
        "description": "测试用",
        "category": "ticket",
    }, headers=auth_header(admin_token))
    if wf_res.status_code == 201:
        wf_id = wf_res.json()["id"]
    else:
        # workflow may already exist, try to get one
        wf_list = await client.get("/api/v1/workflows", headers=auth_header(admin_token))
        workflows = wf_list.json()
        wf_id = workflows[0]["id"] if workflows else None

    if not wf_id:
        pytest.skip("No workflow available")

    # 创建带 workflow_id 的实例
    res = await client.post("/api/v1/instances", json={
        "name": "wf-instance",
        "db_type": "mysql",
        "host": "127.0.0.1",
        "port": 3306,
        "username": "root",
        "password": "***",
        "workflow_id": wf_id,
    }, headers=auth_header(admin_token))
    assert res.status_code == 201
    data = res.json()
    assert data["workflow_id"] == wf_id
    assert data["workflow_name"] is not None