package helper

import (
	"authentication/models"
	"encoding/json"
	"testing"
	"time"
)

func TestLogEvent(t *testing.T) {
	// Note: This test requires database and Redis connections
	// In a real test environment, you'd use mocks or test databases
	// For now, we'll test the structure and basic validation

	t.Skip("Integration test - requires database and Redis")

	userID := "user123"
	ipAddress := "192.168.1.1"
	actType := 17
	fieldUpdate := map[string]string{"field": "value"}

	err := LogEvent("test-id", &userID, ipAddress, actType, fieldUpdate)
	if err != nil {
		t.Errorf("Expected no error, got: %v", err)
	}
}

func TestLogEventNilUser(t *testing.T) {
	t.Skip("Integration test - requires database and Redis")

	ipAddress := "192.168.1.1"
	actType := 17

	err := LogEvent("test-id", nil, ipAddress, actType, nil)
	if err != nil {
		t.Errorf("Expected no error with nil user, got: %v", err)
	}
}

func TestLogEventNilFieldUpdate(t *testing.T) {
	t.Skip("Integration test - requires database and Redis")

	userID := "user456"
	ipAddress := "10.0.0.1"
	actType := 5

	err := LogEvent("test-id", &userID, ipAddress, actType, nil)
	if err != nil {
		t.Errorf("Expected no error with nil field update, got: %v", err)
	}
}

func TestLogLoginEventV2(t *testing.T) {
	t.Skip("Integration test - requires database and Redis")

	err := LogLoginEventV2("user789", "172.16.0.1")
	if err != nil {
		t.Errorf("Expected no error, got: %v", err)
	}
}

func TestLogLoginEventV2EmptyIP(t *testing.T) {
	t.Skip("Integration test - requires database and Redis")

	err := LogLoginEventV2("user999", "")
	if err != nil {
		t.Errorf("Expected no error with empty IP, got: %v", err)
	}
}

func TestLogLoginEventParams(t *testing.T) {
	t.Skip("Integration test - requires database and Redis")

	fieldUpdated := new(json.RawMessage)
	data := []byte(`{"key": "value"}`)
	fieldUpdated = (*json.RawMessage)(&data)

	params := models.LogEventParams{
		UserID:       stringPtr("user123"),
		ActivityType: 17,
		IPAddress:    "192.168.1.100",
		FieldUpdated: fieldUpdated,
		ErrorMessage: ErrorFailedtoLogLoginEvent,
	}

	err := LogLoginEventParams(params, "192.168.1.100")
	if err != nil {
		t.Errorf("Expected no error, got: %v", err)
	}
}

func TestLogLoginEventParamsActivityTypes(t *testing.T) {
	t.Skip("Integration test - requires database and Redis")

	activityTypes := []int{1, 5, 10, 17, 20}

	for _, actType := range activityTypes {
		params := models.LogEventParams{
			ActivityType: actType,
			IPAddress:    "192.168.1.1",
			FieldUpdated: new(json.RawMessage),
			ErrorMessage: ErrorFailedtoLogLoginEvent,
		}

		err := LogLoginEventParams(params, "192.168.1.1")
		if err != nil {
			t.Errorf("Expected no error for activity type %d, got: %v", actType, err)
		}
	}
}

func TestLogEventJSONMarshalling(t *testing.T) {
	// Test that field updates can be marshalled correctly
	testCases := []struct {
		name        string
		fieldUpdate interface{}
		expectError bool
	}{
		{
			name:        "Simple map",
			fieldUpdate: map[string]string{"field": "value"},
			expectError: false,
		},
		{
			name:        "Complex object",
			fieldUpdate: map[string]interface{}{"nested": map[string]string{"key": "value"}},
			expectError: false,
		},
		{
			name:        "Array",
			fieldUpdate: []string{"item1", "item2"},
			expectError: false,
		},
		{
			name:        "Nil",
			fieldUpdate: nil,
			expectError: false,
		},
		{
			name:        "Unmarshalable (channel)",
			fieldUpdate: make(chan int),
			expectError: true,
		},
	}

	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			var fieldUpdated *json.RawMessage

			if tc.fieldUpdate != nil {
				data, err := json.Marshal(tc.fieldUpdate)
				if tc.expectError {
					if err == nil {
						t.Error("Expected marshalling error")
					}
					return
				}

				if err != nil {
					t.Errorf("Unexpected marshalling error: %v", err)
					return
				}

				rawMsg := json.RawMessage(data)
				fieldUpdated = &rawMsg
			} else {
				fieldUpdated = new(json.RawMessage)
			}

			if fieldUpdated == nil {
				t.Error("Field updated should not be nil")
			}
		})
	}
}

func TestLogEventParamsStructValidation(t *testing.T) {
	// Test LogEventParams struct can be properly constructed
	params := models.LogEventParams{
		UserID:        stringPtr("user123"),
		ParticipantID: stringPtr("part456"),
		ActivityType:  17,
		IPAddress:     "192.168.1.1",
		FieldUpdated:  new(json.RawMessage),
		ErrorMessage:  ErrorFailedtoLogLoginEvent,
	}

	if params.UserID == nil || *params.UserID != "user123" {
		t.Error("UserID not set correctly")
	}

	if params.ParticipantID == nil || *params.ParticipantID != "part456" {
		t.Error("ParticipantID not set correctly")
	}

	if params.ActivityType != 17 {
		t.Errorf("Expected activity type 17, got %d", params.ActivityType)
	}

	if params.IPAddress != "192.168.1.1" {
		t.Errorf("Expected IP 192.168.1.1, got %s", params.IPAddress)
	}

	if params.ErrorMessage != ErrorFailedtoLogLoginEvent {
		t.Errorf("Expected error message '%s', got '%s'", ErrorFailedtoLogLoginEvent, params.ErrorMessage)
	}
}

func TestUserAccessLogStructValidation(t *testing.T) {
	location, _ := LoadAsiaManilaLocation()
	now := timeNow().In(location)

	fieldData := json.RawMessage(`{"key": "value"}`)

	log := models.UserAccessLog{
		UserID:        stringPtr("user123"),
		ParticipantID: stringPtr("part456"),
		ActivityType:  17,
		IPAddress:     "192.168.1.1",
		FieldUpdated:  &fieldData,
		Time:          now,
	}

	if log.UserID == nil || *log.UserID != "user123" {
		t.Error("UserID not set correctly")
	}

	if log.ActivityType != 17 {
		t.Errorf("Expected activity type 17, got %d", log.ActivityType)
	}

	if log.IPAddress != "192.168.1.1" {
		t.Errorf("Expected IP 192.168.1.1, got %s", log.IPAddress)
	}

	if log.FieldUpdated == nil {
		t.Error("FieldUpdated should not be nil")
	}
}

func TestLogEventIPAddressFormats(t *testing.T) {
	// Test various IP address formats
	ipAddresses := []string{
		"192.168.1.1",
		"10.0.0.1",
		"172.16.0.1",
		"2001:0db8:85a3:0000:0000:8a2e:0370:7334", // IPv6
		"::1",       // IPv6 loopback
		"127.0.0.1", // localhost
	}

	for _, ip := range ipAddresses {
		t.Run(ip, func(t *testing.T) {
			// Just test that the IP format is accepted
			params := models.LogEventParams{
				ActivityType: 17,
				IPAddress:    ip,
				FieldUpdated: new(json.RawMessage),
				ErrorMessage: ErrorFailedtoLogLoginEvent,
			}

			if params.IPAddress != ip {
				t.Errorf("Expected IP %s, got %s", ip, params.IPAddress)
			}
		})
	}
}

func stringPtr(s string) *string {
	return &s
}

func timeNow() time.Time {
	return time.Now()
}

func TestLogLoginEventV2ActivityType(t *testing.T) {
	// Verify that LogLoginEventV2 uses activity type 17
	// This is verified by checking the function implementation

	expectedActivityType := 17

	// The function hardcodes activity type 17
	// We can't directly test this without integration tests,
	// but we can document the expected behavior

	if expectedActivityType != 17 {
		t.Errorf("LogLoginEventV2 should use activity type 17")
	}
}

func TestErrorFailedtoLogLoginEventConstant(t *testing.T) {
	if ErrorFailedtoLogLoginEvent == "" {
		t.Error("ErrorFailedtoLogLoginEvent constant should not be empty")
	}

	expectedMsg := "Failed to log login event"
	if ErrorFailedtoLogLoginEvent != expectedMsg {
		t.Errorf("Expected error message '%s', got '%s'", expectedMsg, ErrorFailedtoLogLoginEvent)
	}
}
