<?php
/**
 * Notification Settings Provider
 * 
 * Manages notification settings stored in wp_options.
 * Works with WooCommerce email settings.
 * 
 * @package WooNooW\Core\Notifications
 */

namespace WooNooW\Core\Notifications;

class NotificationSettingsProvider {
	
	/**
	 * Option key for notification settings
	 */
	const OPTION_KEY = 'woonoow_notification_settings';
	
	/**
	 * Get all notification settings
	 * 
	 * @return array
	 */
	public static function get_settings() {
		$defaults = self::get_default_settings();
		$saved = get_option(self::OPTION_KEY, []);
		
		return wp_parse_args($saved, $defaults);
	}
	
	/**
	 * Get default notification settings
	 * 
	 * @return array
	 */
	private static function get_default_settings() {
		return [
			'events' => self::get_default_event_settings(),
			'channels' => self::get_default_channel_settings(),
		];
	}
	
	/**
	 * Get default event settings
	 * 
	 * @return array
	 */
	private static function get_default_event_settings() {
		$events = NotificationManager::get_events();
		$settings = [];
		
		foreach ($events as $event_id => $event) {
			$settings[$event_id] = [
				'enabled' => true,
				'channels' => ['email'], // Email enabled by default
				'recipients' => [
					'email' => 'admin', // admin, customer, or both
				],
			];
		}
		
		return $settings;
	}
	
	/**
	 * Get default channel settings
	 * 
	 * @return array
	 */
	private static function get_default_channel_settings() {
		return [
			'email' => [
				'enabled' => true,
				// Email settings are managed by WooCommerce
				// We just track if it's enabled in our system
			],
		];
	}
	
	/**
	 * Get settings for a specific event
	 * 
	 * @param string $event_id Event ID
	 * @return array
	 */
	public static function get_event_settings($event_id) {
		$settings = self::get_settings();
		return $settings['events'][$event_id] ?? [];
	}
	
	/**
	 * Get settings for a specific channel
	 * 
	 * @param string $channel_id Channel ID
	 * @return array
	 */
	public static function get_channel_settings($channel_id) {
		$settings = self::get_settings();
		return $settings['channels'][$channel_id] ?? [];
	}
	
	/**
	 * Update notification settings
	 * 
	 * @param array $new_settings New settings
	 * @return bool
	 */
	public static function update_settings($new_settings) {
		$current = self::get_settings();
		$updated = wp_parse_args($new_settings, $current);
		
		return update_option(self::OPTION_KEY, $updated);
	}
	
	/**
	 * Update event settings
	 * 
	 * @param string $event_id Event ID
	 * @param array $event_settings Event settings
	 * @return bool
	 */
	public static function update_event_settings($event_id, $event_settings) {
		$settings = self::get_settings();
		$settings['events'][$event_id] = $event_settings;
		
		return self::update_settings($settings);
	}
	
	/**
	 * Update channel settings
	 * 
	 * @param string $channel_id Channel ID
	 * @param array $channel_settings Channel settings
	 * @return bool
	 */
	public static function update_channel_settings($channel_id, $channel_settings) {
		$settings = self::get_settings();
		$settings['channels'][$channel_id] = $channel_settings;
		
		return self::update_settings($settings);
	}
	
	/**
	 * Check if event is enabled
	 * 
	 * @param string $event_id Event ID
	 * @return bool
	 */
	public static function is_event_enabled($event_id) {
		$event_settings = self::get_event_settings($event_id);
		return $event_settings['enabled'] ?? true;
	}
	
	/**
	 * Check if channel is enabled for event
	 * 
	 * @param string $event_id Event ID
	 * @param string $channel_id Channel ID
	 * @return bool
	 */
	public static function is_channel_enabled_for_event($event_id, $channel_id) {
		$event_settings = self::get_event_settings($event_id);
		$channels = $event_settings['channels'] ?? [];
		
		return in_array($channel_id, $channels, true);
	}
	
	/**
	 * Get recipient type for event channel
	 * 
	 * @param string $event_id Event ID
	 * @param string $channel_id Channel ID
	 * @return string admin|customer|both
	 */
	public static function get_recipient_type($event_id, $channel_id) {
		$event_settings = self::get_event_settings($event_id);
		$recipients = $event_settings['recipients'] ?? [];
		
		return $recipients[$channel_id] ?? 'admin';
	}
}