import pytest
from unittest.mock import MagicMock
from app.dependencies import get_auth_service

class TestAuthAPI:
    """인증 관련 API 테스트"""
    
    def test_join_success(self, client, mock_auth_service):
        """회원가입 성공 테스트"""
        # Mock 설정
        client.app.dependency_overrides[get_auth_service] = lambda: mock_auth_service
        mock_auth_service.join.return_value = {
            "user_id": 1,
            "email": "test@example.com",
            "message": "회원가입 성공"
        }
        
        # 테스트 실행
        response = client.post("/api/v1/auth/join", json={
            "email": "test@example.com",
            "password": "Test1234!",
            "password_confirm": "Test1234!",
            "name": "Test User"
        })
        
        # 검증
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "success"
        assert data["data"]["email"] == "test@example.com"
        assert mock_auth_service.join.called
    
    def test_join_duplicate_email(self, client, mock_auth_service):
        """중복 이메일로 회원가입 시도 테스트"""
        # Mock 설정
        client.app.dependency_overrides[get_auth_service] = lambda: mock_auth_service
        mock_auth_service.join.side_effect = ValueError("이미 존재하는 이메일입니다")
        
        # 테스트 실행
        response = client.post("/api/v1/auth/join", json={
            "email": "existing@example.com",
            "password": "Test1234!",
            "password_confirm": "Test1234!",
            "name": "Test User"
        })
        
        # 검증
        assert response.status_code == 400
        data = response.json()
        assert data["status"] == "error"
        assert "이미 존재하는 이메일" in data["message"]
    
    def test_join_password_mismatch(self, client):
        """비밀번호 불일치 테스트"""
        response = client.post("/api/v1/auth/join", json={
            "email": "test@example.com",
            "password": "Test1234!",
            "password_confirm": "Different1234!",
            "name": "Test User"
        })
        
        # 검증 - 422는 FastAPI의 validation error
        assert response.status_code == 422
    
    def test_login_success(self, client, mock_auth_service):
        """로그인 성공 테스트"""
        # Mock 설정
        client.app.dependency_overrides[get_auth_service] = lambda: mock_auth_service
        mock_auth_service.login.return_value = {
            "access_token": "test_token_123",
            "token_type": "bearer",
            "user_id": 1,
            "email": "test@example.com"
        }
        
        # 테스트 실행
        response = client.post("/api/v1/auth/login", json={
            "email": "test@example.com",
            "password": "Test1234!"
        })
        
        # 검증
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "success"
        assert data["data"]["access_token"] == "test_token_123"
        assert data["data"]["token_type"] == "bearer"
        assert mock_auth_service.login.called
    
    def test_login_invalid_credentials(self, client, mock_auth_service):
        """잘못된 인증정보로 로그인 시도 테스트"""
        # Mock 설정
        client.app.dependency_overrides[get_auth_service] = lambda: mock_auth_service
        mock_auth_service.login.side_effect = ValueError("이메일 또는 비밀번호가 일치하지 않습니다")
        
        # 테스트 실행
        response = client.post("/api/v1/auth/login", json={
            "email": "test@example.com",
            "password": "WrongPassword!"
        })
        
        # 검증
        assert response.status_code == 400
        data = response.json()
        assert data["status"] == "error"
        assert "이메일 또는 비밀번호가 일치하지 않습니다" in data["message"]
    
    def test_login_empty_email(self, client):
        """빈 이메일로 로그인 시도 테스트"""
        response = client.post("/api/v1/auth/login", json={
            "email": "",
            "password": "Test1234!"
        })
        
        # 검증
        assert response.status_code == 422
    
    def test_login_empty_password(self, client):
        """빈 비밀번호로 로그인 시도 테스트"""
        response = client.post("/api/v1/auth/login", json={
            "email": "test@example.com",
            "password": ""
        })
        
        # 검증
        assert response.status_code == 422