"""Tests for Audit Rule CRUD API (Phase 4.2)."""
import pytest
from tests.conftest import auth_header


class TestListAuditRules:
    @pytest.mark.asyncio
    async def test_list_rules_admin(self, client, admin_token):
        resp = await client.get("/api/v1/audit-rules", headers=auth_header(admin_token))
        assert resp.status_code == 200
        assert isinstance(resp.json(), list)

    @pytest.mark.asyncio
    async def test_list_rules_dba(self, client, dba_token):
        resp = await client.get("/api/v1/audit-rules", headers=auth_header(dba_token))
        assert resp.status_code == 200

    @pytest.mark.asyncio
    async def test_list_rules_developer_forbidden(self, client, developer_token):
        resp = await client.get("/api/v1/audit-rules", headers=auth_header(developer_token))
        assert resp.status_code == 403


class TestCreateAuditRule:
    @pytest.mark.asyncio
    async def test_create_rule_success(self, client, admin_token):
        resp = await client.post(
            "/api/v1/audit-rules",
            json={
                "name": "no_select_star",
                "description": "禁止 SELECT *",
                "rule_type": "performance",
                "severity": "warning",
                "db_type": "mysql",
                "pattern": r"SELECT\s+\*",
                "message": "禁止使用 SELECT *，请明确指定字段",
            },
            headers=auth_header(admin_token),
        )
        assert resp.status_code == 201
        data = resp.json()
        assert data["name"] == "no_select_star"
        assert data["rule_type"] == "performance"
        assert data["is_enabled"] is True

    @pytest.mark.asyncio
    async def test_create_duplicate_name(self, client, admin_token):
        payload = {
            "name": "dup_rule",
            "rule_type": "safety",
            "severity": "error",
            "message": "test",
        }
        await client.post("/api/v1/audit-rules", json=payload, headers=auth_header(admin_token))
        resp = await client.post("/api/v1/audit-rules", json=payload, headers=auth_header(admin_token))
        assert resp.status_code == 400

    @pytest.mark.asyncio
    async def test_create_rule_non_admin(self, client, dba_token):
        resp = await client.post(
            "/api/v1/audit-rules",
            json={"name": "dba_rule", "rule_type": "syntax", "severity": "info", "message": "test"},
            headers=auth_header(dba_token),
        )
        assert resp.status_code == 403


class TestGetAuditRule:
    @pytest.mark.asyncio
    async def test_get_rule(self, client, admin_token):
        create = await client.post(
            "/api/v1/audit-rules",
            json={"name": "get_test", "rule_type": "naming", "severity": "info", "message": "test"},
            headers=auth_header(admin_token),
        )
        rule_id = create.json()["id"]
        resp = await client.get(f"/api/v1/audit-rules/{rule_id}", headers=auth_header(admin_token))
        assert resp.status_code == 200
        assert resp.json()["name"] == "get_test"

    @pytest.mark.asyncio
    async def test_get_nonexistent_rule(self, client, admin_token):
        resp = await client.get("/api/v1/audit-rules/99999", headers=auth_header(admin_token))
        assert resp.status_code == 404


class TestUpdateAuditRule:
    @pytest.mark.asyncio
    async def test_update_rule(self, client, admin_token):
        create = await client.post(
            "/api/v1/audit-rules",
            json={"name": "update_test", "rule_type": "safety", "severity": "warning", "message": "old msg"},
            headers=auth_header(admin_token),
        )
        rule_id = create.json()["id"]
        resp = await client.put(
            f"/api/v1/audit-rules/{rule_id}",
            json={"severity": "error", "message": "new msg"},
            headers=auth_header(admin_token),
        )
        assert resp.status_code == 200
        assert resp.json()["severity"] == "error"
        assert resp.json()["message"] == "new msg"


class TestDeleteAuditRule:
    @pytest.mark.asyncio
    async def test_delete_rule(self, client, admin_token):
        create = await client.post(
            "/api/v1/audit-rules",
            json={"name": "delete_test", "rule_type": "syntax", "severity": "info", "message": "test"},
            headers=auth_header(admin_token),
        )
        rule_id = create.json()["id"]
        resp = await client.delete(f"/api/v1/audit-rules/{rule_id}", headers=auth_header(admin_token))
        assert resp.status_code == 200

        # Verify deleted
        get = await client.get(f"/api/v1/audit-rules/{rule_id}", headers=auth_header(admin_token))
        assert get.status_code == 404


class TestToggleAuditRule:
    @pytest.mark.asyncio
    async def test_toggle_rule(self, client, admin_token):
        create = await client.post(
            "/api/v1/audit-rules",
            json={"name": "toggle_test", "rule_type": "safety", "severity": "warning", "message": "test"},
            headers=auth_header(admin_token),
        )
        rule_id = create.json()["id"]
        assert create.json()["is_enabled"] is True

        # Toggle off
        resp = await client.post(f"/api/v1/audit-rules/{rule_id}/toggle", headers=auth_header(admin_token))
        assert resp.status_code == 200
        assert resp.json()["is_enabled"] is False

        # Toggle back on
        resp = await client.post(f"/api/v1/audit-rules/{rule_id}/toggle", headers=auth_header(admin_token))
        assert resp.status_code == 200
        assert resp.json()["is_enabled"] is True


class TestRuleStats:
    @pytest.mark.asyncio
    async def test_rule_stats(self, client, admin_token):
        # Create some rules
        await client.post(
            "/api/v1/audit-rules",
            json={"name": "stats_rule_1", "rule_type": "safety", "severity": "error", "message": "test"},
            headers=auth_header(admin_token),
        )
        await client.post(
            "/api/v1/audit-rules",
            json={"name": "stats_rule_2", "rule_type": "performance", "severity": "warning", "message": "test"},
            headers=auth_header(admin_token),
        )

        resp = await client.get("/api/v1/audit-rules/stats/summary", headers=auth_header(admin_token))
        assert resp.status_code == 200
        data = resp.json()
        assert data["total"] >= 2
        assert data["enabled"] >= 2
        assert "by_type" in data