package security_test

import (
	"fmt"
	"net/http"
	"net/http/httptest"
	"net/url"
	"strings"
	"testing"
	"time"

	"github.com/juanatsap/cv-site/internal/handlers"
	"github.com/juanatsap/cv-site/internal/middleware"
	"github.com/juanatsap/cv-site/internal/services"
	"github.com/juanatsap/cv-site/internal/templates"
)

// mockEmailSender is a mock implementation of handlers.EmailSender for testing
type mockEmailSender struct{}

func (m *mockEmailSender) SendContactForm(data *services.ContactFormData) error {
	// Validate like the real service would
	if err := data.Validate(); err != nil {
		return fmt.Errorf("validation failed: %w", err)
	}
	// Always succeed - don't actually send
	return nil
}

// setupTestServer creates a test server with the contact handler and security middleware
func setupTestServer(t *testing.T) http.Handler {
	t.Helper()

	// Create a minimal template manager for testing
	tmpl := &templates.Manager{}

	// Create mock email service that doesn't actually send
	emailService := &mockEmailSender{}

	// Create the contact handler
	contactHandler := handlers.NewContactHandler(tmpl, emailService)

	// Apply the same middleware chain as production:
	// BrowserOnly → RateLimiter → Handler
	rateLimiter := middleware.NewContactRateLimiter()
	protectedHandler := middleware.BrowserOnly(
		rateLimiter.Middleware(
			http.HandlerFunc(contactHandler.Submit),
		),
	)

	return protectedHandler
}

// createValidContactRequest creates a valid contact form request for testing
func createValidContactRequest() *http.Request {
	// Calculate submit time (5 seconds ago to pass timing check)
	submitTime := time.Now().Add(-5 * time.Second)
	submitTimeMs := submitTime.UnixMilli()

	formData := url.Values{
		"email":       {"test@example.com"},
		"name":        {"John Doe"},
		"company":     {"Test Corp"},
		"subject":     {"Test Subject"},
		"message":     {"This is a test message with more than 10 characters."},
		"website":     {""},                          // Honeypot - must be empty
		"submit_time": {fmt.Sprintf("%d", submitTimeMs)}, // Timing check
	}

	req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	// Add browser headers
	req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36")
	req.Header.Set("Referer", "http://localhost:8080/")
	req.Header.Set("HX-Request", "true")

	return req
}

// TestBrowserOnlyMiddleware_BlocksCurl tests that curl requests are blocked
func TestBrowserOnlyMiddleware_BlocksCurl(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name      string
		userAgent string
		wantCode  int
	}{
		{
			name:      "block curl",
			userAgent: "curl/7.68.0",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block wget",
			userAgent: "Wget/1.20.3",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block postman",
			userAgent: "PostmanRuntime/7.26.8",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block python requests",
			userAgent: "python-requests/2.25.1",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block insomnia",
			userAgent: "insomnia/2021.1.0",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block httpie",
			userAgent: "HTTPie/2.4.0",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block go http client",
			userAgent: "Go-http-client/1.1",
			wantCode:  http.StatusForbidden,
		},
		{
			name:      "block empty user agent",
			userAgent: "",
			wantCode:  http.StatusForbidden,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			req := createValidContactRequest()
			req.Header.Set("User-Agent", tt.userAgent)

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d", tt.wantCode, rr.Code)
			}

			if rr.Code == http.StatusForbidden {
				if !strings.Contains(rr.Body.String(), "Forbidden") {
					t.Errorf("expected Forbidden message, got: %s", rr.Body.String())
				}
			}
		})
	}
}

// TestBrowserOnlyMiddleware_RequiresRefererOrOrigin tests that requests without Referer/Origin are blocked
func TestBrowserOnlyMiddleware_RequiresRefererOrOrigin(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name     string
		referer  string
		origin   string
		wantCode int
	}{
		{
			name:     "no referer no origin - blocked",
			referer:  "",
			origin:   "",
			wantCode: http.StatusForbidden,
		},
		{
			name:     "with referer - allowed",
			referer:  "http://localhost:8080/",
			origin:   "",
			wantCode: http.StatusOK,
		},
		{
			name:     "with origin - allowed",
			referer:  "",
			origin:   "http://localhost:8080",
			wantCode: http.StatusOK,
		},
		{
			name:     "with both - allowed",
			referer:  "http://localhost:8080/",
			origin:   "http://localhost:8080",
			wantCode: http.StatusOK,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			req := createValidContactRequest()

			// Clear default headers
			req.Header.Del("Referer")
			req.Header.Del("Origin")

			// Set test headers
			if tt.referer != "" {
				req.Header.Set("Referer", tt.referer)
			}
			if tt.origin != "" {
				req.Header.Set("Origin", tt.origin)
			}

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			// Note: Tests that pass security may fail at email sending (expected in test environment)
			// We only care about security middleware blocking (403) vs allowing through
			if tt.wantCode == http.StatusForbidden {
				if rr.Code != tt.wantCode {
					t.Errorf("expected status %d, got %d", tt.wantCode, rr.Code)
				}
			} else {
				// If not expecting forbidden, just verify it's not forbidden
				// (may be 200 or 500 depending on email service availability)
				if rr.Code == http.StatusForbidden {
					t.Errorf("expected to pass security (not %d), got %d", http.StatusForbidden, rr.Code)
				}
			}
		})
	}
}

// TestBrowserOnlyMiddleware_RequiresBrowserHeaders tests that browser-specific headers are required
func TestBrowserOnlyMiddleware_RequiresBrowserHeaders(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name        string
		htmxRequest string
		xRequestedWith string
		xBrowserRequest string
		wantCode    int
	}{
		{
			name:        "no browser headers - blocked",
			htmxRequest: "",
			xRequestedWith: "",
			xBrowserRequest: "",
			wantCode:    http.StatusForbidden,
		},
		{
			name:        "HX-Request header - allowed",
			htmxRequest: "true",
			xRequestedWith: "",
			xBrowserRequest: "",
			wantCode:    http.StatusOK,
		},
		{
			name:        "X-Requested-With header - allowed",
			htmxRequest: "",
			xRequestedWith: "XMLHttpRequest",
			xBrowserRequest: "",
			wantCode:    http.StatusOK,
		},
		{
			name:        "X-Browser-Request header - allowed",
			htmxRequest: "",
			xRequestedWith: "",
			xBrowserRequest: "true",
			wantCode:    http.StatusOK,
		},
		{
			name:        "invalid HX-Request value - blocked",
			htmxRequest: "false",
			xRequestedWith: "",
			xBrowserRequest: "",
			wantCode:    http.StatusForbidden,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			req := createValidContactRequest()

			// Clear default browser headers
			req.Header.Del("HX-Request")
			req.Header.Del("X-Requested-With")
			req.Header.Del("X-Browser-Request")

			// Set test headers
			if tt.htmxRequest != "" {
				req.Header.Set("HX-Request", tt.htmxRequest)
			}
			if tt.xRequestedWith != "" {
				req.Header.Set("X-Requested-With", tt.xRequestedWith)
			}
			if tt.xBrowserRequest != "" {
				req.Header.Set("X-Browser-Request", tt.xBrowserRequest)
			}

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d", tt.wantCode, rr.Code)
			}
		})
	}
}

// TestInputValidation_EmailFormat tests email validation
func TestInputValidation_EmailFormat(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name     string
		email    string
		ip       string // Use unique IPs to avoid rate limiting
		wantCode int
	}{
		{
			name:     "valid email",
			email:    "test@example.com",
			ip:       "10.1.1.1",
			wantCode: http.StatusOK,
		},
		{
			name:     "valid email with subdomain",
			email:    "user@mail.example.com",
			ip:       "10.1.1.2",
			wantCode: http.StatusOK,
		},
		{
			name:     "invalid - no @",
			email:    "notanemail",
			ip:       "10.1.1.3",
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "invalid - no domain",
			email:    "test@",
			ip:       "10.1.1.4",
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "invalid - no TLD",
			email:    "test@example",
			ip:       "10.1.1.5",
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "empty email",
			email:    "",
			ip:       "10.1.1.6",
			wantCode: http.StatusBadRequest,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// Build request with test email
			formData := url.Values{}
			formData.Set("email", tt.email)
			formData.Set("name", "John Doe")
			formData.Set("subject", "Test")
			formData.Set("message", "This is a test message with sufficient length.")
			formData.Set("website", "")
			formData.Set("submit_time", fmt.Sprintf("%d", time.Now().Add(-5*time.Second).UnixMilli()))

			req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
			req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)")
			req.Header.Set("Referer", "http://localhost:8080/")
			req.Header.Set("HX-Request", "true")
			req.Header.Set("X-Forwarded-For", tt.ip) // Use unique IP to avoid rate limiting

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d for email: %s", tt.wantCode, rr.Code, tt.email)
			}
		})
	}
}

// TestInputValidation_MessageLength tests message length validation
func TestInputValidation_MessageLength(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name     string
		message  string
		ip       string // Use unique IPs to avoid rate limiting
		wantCode int
	}{
		{
			name:     "valid message - minimum length",
			message:  "Short msg!",
			ip:       "10.2.1.1",
			wantCode: http.StatusOK,
		},
		{
			name:     "valid message - normal length",
			message:  "This is a normal length message that should pass validation.",
			ip:       "10.2.1.2",
			wantCode: http.StatusOK,
		},
		{
			name:     "valid message - maximum length",
			message:  strings.Repeat("a", 5000),
			ip:       "10.2.1.3",
			wantCode: http.StatusOK,
		},
		{
			name:     "invalid - too long",
			message:  strings.Repeat("a", 5001),
			ip:       "10.2.1.4",
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "invalid - empty",
			message:  "",
			ip:       "10.2.1.5",
			wantCode: http.StatusBadRequest,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// Build request with test message
			formData := url.Values{}
			formData.Set("email", "test@example.com")
			formData.Set("name", "John Doe")
			formData.Set("subject", "Test Subject")
			formData.Set("message", tt.message)
			formData.Set("website", "")
			formData.Set("submit_time", fmt.Sprintf("%d", time.Now().Add(-5*time.Second).UnixMilli()))

			req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
			req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)")
			req.Header.Set("Referer", "http://localhost:8080/")
			req.Header.Set("HX-Request", "true")
			req.Header.Set("X-Forwarded-For", tt.ip) // Use unique IP to avoid rate limiting

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d", tt.wantCode, rr.Code)
			}
		})
	}
}

// TestInputValidation_RequiredFields tests that required fields are enforced
func TestInputValidation_RequiredFields(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name     string
		email    string
		message  string
		ip       string // Use unique IPs to avoid rate limiting
		wantCode int
	}{
		{
			name:     "all required fields present",
			email:    "test@example.com",
			message:  "Valid message",
			ip:       "10.3.1.1",
			wantCode: http.StatusOK,
		},
		{
			name:     "missing email",
			email:    "",
			message:  "Valid message",
			ip:       "10.3.1.2",
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "missing message",
			email:    "test@example.com",
			message:  "",
			ip:       "10.3.1.3",
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "both missing",
			email:    "",
			message:  "",
			ip:       "10.3.1.4",
			wantCode: http.StatusBadRequest,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			formData := url.Values{}
			formData.Set("email", tt.email)
			formData.Set("name", "John Doe")
			formData.Set("subject", "Test")
			formData.Set("message", tt.message)
			formData.Set("website", "")
			formData.Set("submit_time", fmt.Sprintf("%d", time.Now().Add(-5*time.Second).UnixMilli()))

			req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
			req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)")
			req.Header.Set("Referer", "http://localhost:8080/")
			req.Header.Set("HX-Request", "true")
			req.Header.Set("X-Forwarded-For", tt.ip) // Use unique IP to avoid rate limiting

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d", tt.wantCode, rr.Code)
			}
		})
	}
}

// TestBotProtection_Honeypot tests honeypot field detection
func TestBotProtection_Honeypot(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name      string
		honeypot  string
		wantCode  int
		wantBlock bool
	}{
		{
			name:      "honeypot empty - human",
			honeypot:  "",
			wantCode:  http.StatusOK,
			wantBlock: false,
		},
		{
			name:      "honeypot filled - bot detected",
			honeypot:  "http://spam.com",
			wantCode:  http.StatusOK, // Returns 200 to fool bots
			wantBlock: true,
		},
		{
			name:      "honeypot with space - bot detected",
			honeypot:  "   ",
			wantCode:  http.StatusOK,
			wantBlock: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			formData := url.Values{}
			formData.Set("email", "test@example.com")
			formData.Set("name", "John Doe")
			formData.Set("subject", "Test")
			formData.Set("message", "This is a valid test message.")
			formData.Set("website", tt.honeypot)
			formData.Set("submit_time", fmt.Sprintf("%d", time.Now().Add(-5*time.Second).UnixMilli()))

			req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
			req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)")
			req.Header.Set("Referer", "http://localhost:8080/")
			req.Header.Set("HX-Request", "true")

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d", tt.wantCode, rr.Code)
			}

			// For honeypot triggers, we return success to fool bots
			// But we should verify the form wasn't actually processed
			if tt.wantBlock && rr.Code == http.StatusOK {
				// Success response for bots - they think it worked
				t.Logf("Honeypot triggered: bot received fake success (as intended)")
			}
		})
	}
}

// TestBotProtection_Timing tests form submission timing validation
func TestBotProtection_Timing(t *testing.T) {
	handler := setupTestServer(t)

	tests := []struct {
		name     string
		delay    time.Duration
		wantCode int
	}{
		{
			name:     "submitted too fast - 1 second",
			delay:    1 * time.Second,
			wantCode: http.StatusBadRequest,
		},
		{
			name:     "submitted at minimum time - 2 seconds",
			delay:    2 * time.Second,
			wantCode: http.StatusOK,
		},
		{
			name:     "normal submission - 5 seconds",
			delay:    5 * time.Second,
			wantCode: http.StatusOK,
		},
		{
			name:     "slow submission - 30 seconds",
			delay:    30 * time.Second,
			wantCode: http.StatusOK,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			submitTime := time.Now().Add(-tt.delay)

			formData := url.Values{}
			formData.Set("email", "test@example.com")
			formData.Set("name", "John Doe")
			formData.Set("subject", "Test")
			formData.Set("message", "This is a valid test message.")
			formData.Set("website", "")
			formData.Set("submit_time", fmt.Sprintf("%d", submitTime.UnixMilli()))

			req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
			req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)")
			req.Header.Set("Referer", "http://localhost:8080/")
			req.Header.Set("HX-Request", "true")

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != tt.wantCode {
				t.Errorf("expected status %d, got %d (delay: %v)", tt.wantCode, rr.Code, tt.delay)
			}

			if tt.wantCode == http.StatusBadRequest {
				if !strings.Contains(rr.Body.String(), "take your time") {
					t.Errorf("expected 'take your time' message, got: %s", rr.Body.String())
				}
			}
		})
	}
}

// TestRateLimiting tests rate limit enforcement (5 requests per hour per IP)
func TestRateLimiting(t *testing.T) {
	handler := setupTestServer(t)

	// Simulate requests from the same IP
	const maxRequests = 5

	for i := 0; i < maxRequests+2; i++ {
		req := createValidContactRequest()

		// All requests from same IP
		req.RemoteAddr = "192.168.1.100:12345"

		rr := httptest.NewRecorder()
		handler.ServeHTTP(rr, req)

		if i < maxRequests {
			// First 5 requests should succeed
			if rr.Code != http.StatusOK {
				t.Errorf("request %d: expected status %d, got %d", i+1, http.StatusOK, rr.Code)
			}
		} else {
			// 6th and 7th requests should be rate limited
			if rr.Code != http.StatusTooManyRequests {
				t.Errorf("request %d: expected rate limit (status %d), got %d", i+1, http.StatusTooManyRequests, rr.Code)
			}

			if !strings.Contains(rr.Body.String(), "Too Many Requests") && !strings.Contains(rr.Body.String(), "too many") {
				t.Errorf("request %d: expected rate limit message, got: %s", i+1, rr.Body.String())
			}
		}
	}
}

// TestRateLimiting_DifferentIPs tests that different IPs have separate rate limits
func TestRateLimiting_DifferentIPs(t *testing.T) {
	handler := setupTestServer(t)

	ips := []string{
		"192.168.1.1:12345",
		"192.168.1.2:12346",
		"10.0.0.1:12347",
	}

	// Each IP should be able to make 5 requests
	for _, ip := range ips {
		for i := 0; i < 5; i++ {
			req := createValidContactRequest()
			req.RemoteAddr = ip

			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != http.StatusOK {
				t.Errorf("IP %s request %d: expected status %d, got %d", ip, i+1, http.StatusOK, rr.Code)
			}
		}
	}
}

// TestComprehensiveSecurity_RealWorldScenario tests a realistic attack scenario
func TestComprehensiveSecurity_RealWorldScenario(t *testing.T) {
	handler := setupTestServer(t)

	scenarios := []struct {
		name        string
		setupReq    func() *http.Request
		wantCode    int
		description string
	}{
		{
			name: "legitimate user submission",
			setupReq: func() *http.Request {
				return createValidContactRequest()
			},
			wantCode:    http.StatusOK,
			description: "Normal browser user should succeed",
		},
		{
			name: "bot with curl trying to spam",
			setupReq: func() *http.Request {
				req := createValidContactRequest()
				req.Header.Set("User-Agent", "curl/7.68.0")
				return req
			},
			wantCode:    http.StatusForbidden,
			description: "Curl should be blocked by BrowserOnly middleware",
		},
		{
			name: "bot filled honeypot field",
			setupReq: func() *http.Request {
				formData := url.Values{}
				formData.Set("email", "spammer@example.com")
				formData.Set("name", "Spammer")
				formData.Set("subject", "Spam")
				formData.Set("message", "Buy my product now!")
				formData.Set("website", "http://spam-site.com") // Bot filled honeypot!
				formData.Set("submit_time", fmt.Sprintf("%d", time.Now().Add(-5*time.Second).UnixMilli()))

				req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
				req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
				req.Header.Set("User-Agent", "Mozilla/5.0")
				req.Header.Set("Referer", "http://localhost:8080/")
				req.Header.Set("HX-Request", "true")
				return req
			},
			wantCode:    http.StatusOK, // Returns 200 to fool bot
			description: "Honeypot should catch bot but return fake success",
		},
		{
			name: "automated script submitting too fast",
			setupReq: func() *http.Request {
				formData := url.Values{}
				formData.Set("email", "fast@example.com")
				formData.Set("name", "Fast Bot")
				formData.Set("subject", "Quick")
				formData.Set("message", "This was submitted instantly!")
				formData.Set("website", "")
				formData.Set("submit_time", fmt.Sprintf("%d", time.Now().Add(-500*time.Millisecond).UnixMilli())) // Too fast!

				req := httptest.NewRequest(http.MethodPost, "/api/contact", strings.NewReader(formData.Encode()))
				req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
				req.Header.Set("User-Agent", "Mozilla/5.0")
				req.Header.Set("Referer", "http://localhost:8080/")
				req.Header.Set("HX-Request", "true")
				return req
			},
			wantCode:    http.StatusBadRequest,
			description: "Fast submission should be rejected",
		},
		{
			name: "postman without browser headers",
			setupReq: func() *http.Request {
				req := createValidContactRequest()
				req.Header.Set("User-Agent", "PostmanRuntime/7.26.8")
				req.Header.Del("HX-Request")
				req.Header.Del("X-Requested-With")
				return req
			},
			wantCode:    http.StatusForbidden,
			description: "Postman should be blocked",
		},
		{
			name: "request without referer/origin",
			setupReq: func() *http.Request {
				req := createValidContactRequest()
				req.Header.Del("Referer")
				req.Header.Del("Origin")
				return req
			},
			wantCode:    http.StatusForbidden,
			description: "No referer/origin should be blocked",
		},
	}

	for _, scenario := range scenarios {
		t.Run(scenario.name, func(t *testing.T) {
			req := scenario.setupReq()
			rr := httptest.NewRecorder()
			handler.ServeHTTP(rr, req)

			if rr.Code != scenario.wantCode {
				t.Errorf("%s: expected status %d, got %d", scenario.description, scenario.wantCode, rr.Code)
			}

			t.Logf("✓ %s", scenario.description)
		})
	}
}

// BenchmarkSecurityMiddleware benchmarks the performance impact of security middleware
func BenchmarkSecurityMiddleware(b *testing.B) {
	handler := setupTestServer(&testing.T{})

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		req := createValidContactRequest()
		rr := httptest.NewRecorder()
		handler.ServeHTTP(rr, req)
	}
}

// BenchmarkBrowserOnlyMiddleware benchmarks just the BrowserOnly middleware
func BenchmarkBrowserOnlyMiddleware(b *testing.B) {
	nextHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusOK)
	})

	handler := middleware.BrowserOnly(nextHandler)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		req := createValidContactRequest()
		rr := httptest.NewRecorder()
		handler.ServeHTTP(rr, req)
	}
}