['required', 'string', 'max:8', 'regex:/^(?=.*\d)[A-Za-z0-9 ]+$/'], 'contact_data' => ['required', 'array'], 'contact_data.name' => ['nullable', 'string', 'max:255'], 'contact_data.email' => ['required_without:contact_data.phone', 'nullable', 'email', 'max:255'], 'contact_data.phone' => ['required_without:contact_data.email', 'nullable', 'string', 'max:50'], 'contact_data.address' => ['nullable', 'string', 'max:500'], 'contact_data.message' => ['nullable', 'string', 'max:2000'], ]; } public function messages(): array { return [ 'registration_number.required' => 'Vehicle registration number is required', 'registration_number.max' => 'Vehicle registration number must not exceed 8 characters', 'registration_number.regex' => 'Invalid registration number format', 'contact_data.required' => 'Contact data is required', 'contact_data.array' => 'Contact data must be a valid object', 'contact_data.email.required_without' => 'Please provide at least an email address or phone number', 'contact_data.email.email' => 'Please provide a valid email address', 'contact_data.phone.required_without' => 'Please provide at least a phone number or email address', ]; } }