package middleware_test

import (
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"

	"erp-mvp/core-service/internal/api/middleware"
	"erp-mvp/core-service/internal/auth"
)

// TestNewAuthMiddleware тестирует создание AuthMiddleware
func TestNewAuthMiddleware(t *testing.T) {
	// Arrange
	jwtService := auth.NewJWTService("test_secret", 24*time.Hour)

	// Act
	authMiddleware := middleware.NewAuthMiddleware(jwtService)

	// Assert
	assert.NotNil(t, authMiddleware)
}

// TestAuthMiddleware_ValidToken тестирует middleware с валидным токеном
func TestAuthMiddleware_ValidToken(t *testing.T) {
	// Arrange
	gin.SetMode(gin.TestMode)
	jwtService := auth.NewJWTService("test_secret", 24*time.Hour)
	authMiddleware := middleware.NewAuthMiddleware(jwtService)

	// Создаем валидный токен
	userID := uuid.New()
	orgID := uuid.New()
	token, err := jwtService.GenerateToken(userID, orgID, "test@example.com", "admin")
	assert.NoError(t, err)

	router := gin.New()
	router.Use(authMiddleware.AuthRequired())
	router.GET("/test", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"message": "success"})
	})

	// Act
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/test", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	router.ServeHTTP(w, req)

	// Assert
	assert.Equal(t, http.StatusOK, w.Code)
}

// TestAuthMiddleware_NoToken тестирует middleware без токена
func TestAuthMiddleware_NoToken(t *testing.T) {
	// Arrange
	gin.SetMode(gin.TestMode)
	jwtService := auth.NewJWTService("test_secret", 24*time.Hour)
	authMiddleware := middleware.NewAuthMiddleware(jwtService)

	router := gin.New()
	router.Use(authMiddleware.AuthRequired())
	router.GET("/test", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"message": "success"})
	})

	// Act
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/test", nil)
	router.ServeHTTP(w, req)

	// Assert
	assert.Equal(t, http.StatusUnauthorized, w.Code)
}

// TestAuthMiddleware_InvalidToken тестирует middleware с невалидным токеном
func TestAuthMiddleware_InvalidToken(t *testing.T) {
	// Arrange
	gin.SetMode(gin.TestMode)
	jwtService := auth.NewJWTService("test_secret", 24*time.Hour)
	authMiddleware := middleware.NewAuthMiddleware(jwtService)

	router := gin.New()
	router.Use(authMiddleware.AuthRequired())
	router.GET("/test", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"message": "success"})
	})

	// Act
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/test", nil)
	req.Header.Set("Authorization", "Bearer invalid_token")
	router.ServeHTTP(w, req)

	// Assert
	assert.Equal(t, http.StatusUnauthorized, w.Code)
}

// TestAuthMiddleware_InvalidHeader тестирует middleware с невалидным заголовком
func TestAuthMiddleware_InvalidHeader(t *testing.T) {
	// Arrange
	gin.SetMode(gin.TestMode)
	jwtService := auth.NewJWTService("test_secret", 24*time.Hour)
	authMiddleware := middleware.NewAuthMiddleware(jwtService)

	router := gin.New()
	router.Use(authMiddleware.AuthRequired())
	router.GET("/test", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"message": "success"})
	})

	// Act
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/test", nil)
	req.Header.Set("Authorization", "InvalidFormat token")
	router.ServeHTTP(w, req)

	// Assert
	assert.Equal(t, http.StatusUnauthorized, w.Code)
}

// TestGetClaims тестирует извлечение claims из контекста
func TestGetClaims(t *testing.T) {
	// Arrange
	gin.SetMode(gin.TestMode)
	userID := uuid.New()
	orgID := uuid.New()
	email := "test@example.com"
	role := "admin"

	router := gin.New()
	router.GET("/test", func(c *gin.Context) {
		// Устанавливаем claims в контекст
		c.Set("user_id", userID)
		c.Set("organization_id", orgID)
		c.Set("email", email)
		c.Set("role", role)

		// Извлекаем claims
		claims := middleware.GetClaims(c)
		assert.NotNil(t, claims)
		assert.Equal(t, userID, claims.UserID)
		assert.Equal(t, orgID, claims.OrganizationID)
		assert.Equal(t, email, claims.Email)
		assert.Equal(t, role, claims.Role)

		c.JSON(http.StatusOK, gin.H{"message": "success"})
	})

	// Act
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/test", nil)
	router.ServeHTTP(w, req)

	// Assert
	assert.Equal(t, http.StatusOK, w.Code)
}