package router

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

// TestPublicRoutes verifies that public routes are accessible without authentication
func TestPublicRoutes(t *testing.T) {
	// Note: This test requires a running router.
	// For isolation, we test the expected behavior without needing full DB setup.

	t.Run("GET /health returns 200", func(t *testing.T) {
		// Simple health endpoint test
		req := httptest.NewRequest("GET", "/health", nil)
		w := httptest.NewRecorder()

		// Simulate the health handler directly
		handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			w.WriteHeader(http.StatusOK)
			w.Header().Set("Content-Type", "text/plain")
			w.Write([]byte("OK"))
		})
		handler.ServeHTTP(w, req)

		if w.Code != http.StatusOK {
			t.Errorf("Expected 200, got %d", w.Code)
		}
		if w.Body.String() != "OK" {
			t.Errorf("Expected 'OK', got '%s'", w.Body.String())
		}
	})

	t.Run("Root route returns API info", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/", nil)
		w := httptest.NewRecorder()

		// Simulate root handler
		handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			if r.URL.Path != "/" {
				http.NotFound(w, r)
				return
			}
			w.Header().Set("Content-Type", "application/json")
			w.Write([]byte(`{"message":"🐴 GoHorseJobs API is running!"}`))
		})
		handler.ServeHTTP(w, req)

		if w.Code != http.StatusOK {
			t.Errorf("Expected 200, got %d", w.Code)
		}
	})
}

// TestPublicRoutePatterns documents the expected public routes in the system
func TestPublicRoutePatterns(t *testing.T) {
	// This is a documentation test to verify route patterns
	publicRoutes := []struct {
		method string
		path   string
	}{
		// Health & Root
		{"GET", "/health"},
		{"GET", "/"},

		// Auth
		{"POST", "/api/v1/auth/login"},
		{"POST", "/api/v1/auth/logout"},
		{"POST", "/api/v1/auth/register"},
		{"POST", "/api/v1/auth/register/candidate"},
		{"POST", "/api/v1/auth/register/company"},

		// Jobs (public read)
		{"GET", "/api/v1/jobs"},
		{"GET", "/api/v1/jobs/{id}"},

		// Companies (public read single)
		{"POST", "/api/v1/companies"},
		{"GET", "/api/v1/companies/{id}"},

		// Locations (all public)
		{"GET", "/api/v1/locations/countries"},
		{"GET", "/api/v1/locations/countries/{id}/states"},
		{"GET", "/api/v1/locations/states/{id}/cities"},
		{"GET", "/api/v1/locations/search"},

		// Applications (public create)
		{"POST", "/api/v1/applications"},
		{"GET", "/api/v1/applications"},
		{"GET", "/api/v1/applications/{id}"},
		{"PUT", "/api/v1/applications/{id}/status"},
		{"DELETE", "/api/v1/applications/{id}"},

		// Payments
		{"POST", "/api/v1/payments/webhook"},
		{"GET", "/api/v1/payments/status/{id}"},

		// Swagger
		{"GET", "/docs/"},
	}

	t.Logf("Total public routes: %d", len(publicRoutes))
	for _, route := range publicRoutes {
		t.Logf("  %s %s", route.method, route.path)
	}

	// Verify we have the expected count
	if len(publicRoutes) < 20 {
		t.Error("Expected at least 20 public routes")
	}
}

// TestProtectedRoutePatterns documents routes that require authentication
func TestProtectedRoutePatterns(t *testing.T) {
	protectedRoutes := []struct {
		method string
		path   string
		roles  []string // empty = any authenticated, non-empty = specific roles
	}{
		// Users
		{"POST", "/api/v1/users", nil},
		{"GET", "/api/v1/users", []string{"ADMIN", "SUPERADMIN"}},
		{"PATCH", "/api/v1/users/{id}", nil},
		{"DELETE", "/api/v1/users/{id}", nil},
		{"GET", "/api/v1/users/me", nil},
		{"PATCH", "/api/v1/users/me/profile", nil},

		// Jobs (write)
		{"POST", "/api/v1/jobs", nil},
		{"PUT", "/api/v1/jobs/{id}", nil},
		{"DELETE", "/api/v1/jobs/{id}", nil},
		{"GET", "/api/v1/jobs/moderation", []string{"ADMIN", "SUPERADMIN"}},
		{"PATCH", "/api/v1/jobs/{id}/status", []string{"ADMIN", "SUPERADMIN"}},
		{"POST", "/api/v1/jobs/{id}/duplicate", []string{"ADMIN", "SUPERADMIN"}},

		// Admin
		{"GET", "/api/v1/users/roles", []string{"ADMIN", "SUPERADMIN"}},
		{"GET", "/api/v1/audit/logins", []string{"ADMIN", "SUPERADMIN"}},

		// Companies (admin)
		{"PATCH", "/api/v1/companies/{id}/status", []string{"ADMIN", "SUPERADMIN"}},
		{"PATCH", "/api/v1/companies/{id}", []string{"ADMIN", "SUPERADMIN"}},
		{"DELETE", "/api/v1/companies/{id}", []string{"ADMIN", "SUPERADMIN"}},

		// Tags
		{"GET", "/api/v1/tags", nil},
		{"POST", "/api/v1/tags", []string{"ADMIN", "SUPERADMIN"}},
		{"PATCH", "/api/v1/tags/{id}", []string{"ADMIN", "SUPERADMIN"}},

		// Candidates
		{"GET", "/api/v1/candidates", []string{"ADMIN", "SUPERADMIN"}},

		// Notifications
		{"GET", "/api/v1/notifications", nil},
		{"POST", "/api/v1/tokens", nil},

		// Support Tickets
		{"GET", "/api/v1/support/tickets", nil},
		{"POST", "/api/v1/support/tickets", nil},
		{"GET", "/api/v1/support/tickets/all", nil},
		{"GET", "/api/v1/support/tickets/{id}", nil},
		{"POST", "/api/v1/support/tickets/{id}/messages", nil},
		{"PATCH", "/api/v1/support/tickets/{id}", nil},
		{"PATCH", "/api/v1/support/tickets/{id}/close", nil},
		{"DELETE", "/api/v1/support/tickets/{id}", nil},

		// System
		{"POST", "/api/v1/system/settings/{key}", []string{"ADMIN", "SUPERADMIN"}},
		{"GET", "/api/v1/storage/upload-url", nil},
		{"POST", "/api/v1/system/cloudflare/purge", []string{"ADMIN", "SUPERADMIN"}},

		// Email Admin
		{"GET", "/api/v1/admin/email-templates", []string{"ADMIN", "SUPERADMIN"}},
		{"POST", "/api/v1/admin/email-templates", []string{"ADMIN", "SUPERADMIN"}},
		{"GET", "/api/v1/admin/email-templates/{slug}", []string{"ADMIN", "SUPERADMIN"}},
		{"PUT", "/api/v1/admin/email-templates/{slug}", []string{"ADMIN", "SUPERADMIN"}},
		{"DELETE", "/api/v1/admin/email-templates/{slug}", []string{"ADMIN", "SUPERADMIN"}},
		{"GET", "/api/v1/admin/email-settings", []string{"ADMIN", "SUPERADMIN"}},
		{"PUT", "/api/v1/admin/email-settings", []string{"ADMIN", "SUPERADMIN"}},

		// Chat
		{"GET", "/api/v1/conversations", nil},
		{"GET", "/api/v1/conversations/{id}/messages", nil},
		{"POST", "/api/v1/conversations/{id}/messages", nil},

		// Payments
		{"POST", "/api/v1/payments/create-checkout", nil},
	}

	t.Logf("Total protected routes: %d", len(protectedRoutes))

	adminOnlyCount := 0
	for _, route := range protectedRoutes {
		if len(route.roles) > 0 {
			adminOnlyCount++
		}
	}
	t.Logf("Admin-only routes: %d", adminOnlyCount)

	if len(protectedRoutes) < 30 {
		t.Error("Expected at least 30 protected routes")
	}
}