<?php

namespace Alexr\Models\Traits;

use Alexr\Models\Customer;
use Alexr\Settings\Event;
use Alexr\Settings\Shift;
use Alexr\Settings\WhatsappReminder;
use Alexr\Whatsapp\WhatsappManager;

trait SendBookingWhatsappReminders {

	use MapBookingFieldsToWhatsapp;

	/**
	 * Send a WhatsApp reminder to the customer
	 *
	 * @param int $reminder_id The ID of the WhatsappReminder setting
	 * @param string $lang The language code for the template
	 * @return array|false Result of the send operation or false on failure
	 */
	public function sendWhatsappReminder($reminder_id, $lang = null, $senderInfo = ['sender_type' => 'system'])
	{
		if ($lang === null) {
			$lang = $this->language;
		}

		$booking = $this;

		// 1. Check reminder really exists
		$restaurant_id = $booking->restaurant_id;

		$reminder = WhatsappReminder::where('restaurant_id', $restaurant_id)
		                            ->where('id', $reminder_id)
		                            ->first();

		if (!$reminder) {
			//ray('WhatsApp Reminder not found: ' . $reminder_id);
			return false;
		}

		// 2. Check reminder is active
		if (!$reminder->isEnabled()) {
			//ray('WhatsApp Reminder is not active');
			return false;
		}

		// 3. Check reminder is for shifts or events
		$for_shifts = $reminder->isForShifts();
		$for_events = $reminder->isForEvents();

		// 4. Check service exists and is used by this reminder
		$service_id = $booking->shift_event_id;
		$service = Shift::where('restaurant_id', $restaurant_id)
		                ->where('id', $service_id)
		                ->first();

		if ($service) {
			if (!$for_shifts) {
				//ray('Reminder not configured for shifts');
				return false;
			}
		} else {
			$service = Event::where('restaurant_id', $restaurant_id)
			                ->where('id', $service_id)
			                ->first();
			if ($service) {
				if (!$for_events) {
					//ray('Reminder not configured for events');
					return false;
				}
			} else {
				//ray('Service not found');
				return false; // Service not exists
			}
		}

		// 5. Get template configuration for the language
		$templateConfig = $reminder->getTemplateConfig($lang);

		if (!$templateConfig || empty($templateConfig['template_sid'])) {
			//ray('No WhatsApp template configured for language: ' . $lang);
			return false;
		}

		$templateSid = $templateConfig['template_sid'];
		$templateName = $templateConfig['template_name'] ?? '';
		$fieldMapping = $templateConfig['field_mapping'] ?? [];

		// 6. Map booking fields to template variables
		$variables = $this->mapBookingFieldsToVariables($booking, $fieldMapping);

		// 7. Get customer phone
		$customerPhone = $this->getCustomerPhone($booking);

		if (empty($customerPhone)) {
			//ray('Customer phone is empty, cannot send WhatsApp reminder');
			return false;
		}

		// 7b. Check if customer has WhatsApp
		if ($booking->customer_id) {
			$customer = Customer::find($booking->customer_id);
			if ($customer && !$customer->has_whatsapp) {
				return false;
			}
		}

		// 8. Send the WhatsApp template using WhatsappManager
		$manager = new WhatsappManager($booking->restaurant_id);

		$result = $manager->sendTemplate(
			$customerPhone,
			$templateSid,
			$variables,
			$booking->id,
			$booking->customer_id,
			$templateName,
			$senderInfo
		);

		// 9. Store the notification in BookingNotification
		$this->storeWhatsappSent(
			$customerPhone,
			$templateName,
			$templateSid,
			$variables,
			$result,
			'whatsapp_reminder',
			$reminder->id
		);

		if ($result['success']) {
			//ray('WhatsApp Reminder sent successfully', $result);
		} else {
			//ray('Failed to send WhatsApp Reminder', $result);
		}

		return $result;
	}
}