<?php
/** Explicit local domain activity projections. No credentials or customer field values. */
namespace Abientot\Support;
use Abientot\Admin\Settings;
use Abientot\Repositories\ActivityLogRepository;
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
final class ActivityObserver {
	public function register(): void {
		add_action( 'updated_option', array( $this, 'option_changed' ), 10, 3 );
		add_action(
			'added_option',
			function ( string $option, $value ): void {
				$this->option_changed( $option, array(), $value );
			},
			10,
			2
		);
		add_filter( 'abientot_notification_query_since', array( $this, 'query_since' ), 10, 2 );
		add_filter( 'abientot_notification_since', array( $this, 'row_since' ), 10, 3 );
	}
	public static function booking_changes( int $id, array $before, array $after ): bool {
		$repo   = new ActivityLogRepository();
		$labels = array(
			'start_utc'      => __( 'Start time', 'abientot' ),
			'end_utc'        => __( 'End time', 'abientot' ),
			'status_id'      => __( 'Status', 'abientot' ),
			'payment_status' => __( 'Payment status', 'abientot' ),
			'staff_id'       => __( 'Staff', 'abientot' ),
			'location_id'    => __( 'Location', 'abientot' ),
			'price_cents'    => __( 'Price', 'abientot' )
		);
		foreach ( $labels as$key => $label ) {
			if ( ! array_key_exists( $key, $after ) || (string) ( $before[ $key ] ?? '' ) === (string) $after[ $key ] ) {
				continue;
			}
			$event = in_array( $key, array( 'start_utc', 'end_utc' ), true ) ? 'booking_rescheduled' : ( $key === 'payment_status' ? 'payment_status_changed' : ( $key === 'status_id' ? 'status_changed' : 'booking_updated' ) );
			$old   = (string) ( $before[ $key ] ?? '' );
			$new   = (string) $after[ $key ];
			if ( $key === 'status_id' ) {
				$statuses = new \Abientot\Repositories\StatusesRepository();
				$oldrow   = $statuses->find( (int) $old );
				$newrow   = $statuses->find( (int) $new );
				$old      = $oldrow['label'] ?? $old;
				$new      = $newrow['label'] ?? $new;
				if ( ( $newrow['slug'] ?? '' ) === 'cancelled' ) {
							$event = 'booking_cancelled';
				}
			} elseif ( in_array( $key, array( 'start_utc', 'end_utc' ), true ) ) {
				$old     = DateTimeHelper::format_utc_datetime( $old );
					$new = DateTimeHelper::format_utc_datetime( $new );
			}
			if ( ! $repo->record_event(
				'appointment',
				$id,
				$event,
				sprintf( /* translators: 1: booking ID, 2: field label, 3: previous value, 4: new value. */ __( 'Booking #%1$d: %2$s changed from %3$s to %4$s.', 'abientot' ), $id, $label, $old, $new ),
				array(
					'location_id' => (int) ( $after['location_id'] ?? $before['location_id'] ?? 0 ),
					'field'       => $key
				)
			) ) {
				return false;
			}
		}
		return true;
	}
	public function option_changed( string $option, $old, $new ): void {
		if ( ! current_user_can( 'abientot_manage_settings' ) || $old === $new ) {
			return;
		}
		if ( $option !== Settings::OPTION_NAME && $option !== 'abientot_notification_preferences' && ! preg_match( '/^abientot_(?:location_weekly_schedule|pro_location_schedule_\d+)$/D', $option ) ) {
			return;
		}
		if ( $option === 'abientot_location_weekly_schedule' ) {
			$location = ( new \Abientot\Repositories\LocationsRepository() )->default_location();
			self::schedule_changed( (int) ( $location['id'] ?? 0 ), is_array( $old ) ? $old : null, is_array( $new ) ? $new : array() );
			return;
		}
		$repo   = new ActivityLogRepository();
		$old    = is_array( $old ) ? $old : array();
		$new    = is_array( $new ) ? $new : array();
		$safe   = array( 'business_name', 'business_timezone', 'plugin_language', 'currency', 'date_display_format', 'time_display_format', 'booking_min_notice_hours', 'booking_window_days', 'booking_slot_interval_minutes', 'default_booking_status', 'default_service_duration_minutes', 'hours', 'extend_closures', 'categories', 'booking_form_source', 'booking_form_resource_category_id', 'match_customer_by_email', 'match_customer_by_phone', 'cancellation_cutoff_hours', 'rescheduling_cutoff_hours', 'form_primary_color', 'form_background_color', 'form_background_opacity', 'form_text_color', 'form_font_family', 'form_density', 'form_font_size', 'form_auto_text_color', 'form_max_width', 'form_padding', 'form_container_border_radius', 'form_border_radius', 'form_hours_border_radius', 'form_border_width', 'form_border_color', 'form_service_border_width', 'form_service_border_color_mode', 'form_service_border_color', 'form_service_background_color_mode', 'form_service_background_color', 'form_category_background_color', 'form_field_text_color', 'form_field_background_color', 'form_field_border_color', 'form_field_border_radius', 'form_field_border_width', 'form_service_layout', 'form_group_services', 'form_category_behavior', 'form_show_service_images', 'form_show_category_images', 'form_image_size', 'form_image_radius', 'form_image_border_width', 'form_image_fit', 'form_show_map', 'form_map_height', 'email_customer_confirmation_enabled', 'email_customer_confirmed_enabled', 'email_admin_new_booking_enabled', 'email_customer_cancellation_enabled', 'email_customer_rescheduling_enabled', 'email_customer_completed_enabled' );
		$fields = array_unique( array_merge( array_keys( $old ), array_keys( $new ) ) );
		$labels = array(
			'business_name'                      => __( 'Business name', 'abientot' ),
			'business_timezone'                  => __( 'Business timezone', 'abientot' ),
			'plugin_language'                    => __( 'Language', 'abientot' ),
			'currency'                           => __( 'Currency', 'abientot' ),
			'date_display_format'                => __( 'Date format', 'abientot' ),
			'time_display_format'                => __( 'Time format', 'abientot' ),
			'booking_min_notice_hours'           => __( 'Minimum booking notice (hours)', 'abientot' ),
			'booking_window_days'                => __( 'Booking window (days)', 'abientot' ),
			'booking_slot_interval_minutes'      => __( 'Time slot interval (minutes)', 'abientot' ),
			'default_booking_status'             => __( 'Default booking status', 'abientot' ),
			'hours'                              => __( 'Notification window (hours)', 'abientot' ),
			'extend_closures'                    => __( 'Include closing periods', 'abientot' ),
			'categories'                         => __( 'Notification categories', 'abientot' ),
			'booking_form_source'                => __( 'Booking type', 'abientot' ),
			'booking_form_resource_category_id'  => __( 'Resource category', 'abientot' ),
			'match_customer_by_email'            => __( 'Match by email', 'abientot' ),
			'match_customer_by_phone'            => __( 'Match by phone', 'abientot' ),
			'cancellation_cutoff_hours'          => __( 'Cancellation cutoff (hours)', 'abientot' ),
			'rescheduling_cutoff_hours'          => __( 'Rescheduling cutoff (hours)', 'abientot' ),
			'form_primary_color'                 => __( 'Primary color', 'abientot' ),
			'form_background_color'              => __( 'Background color', 'abientot' ),
			'form_background_opacity'            => __( 'Background visibility', 'abientot' ),
			'form_text_color'                    => __( 'Text color', 'abientot' ),
			'form_font_family'                   => __( 'Font', 'abientot' ),
			'form_density'                       => __( 'Density', 'abientot' ),
			'form_font_size'                     => __( 'Text size', 'abientot' ),
			'form_auto_text_color'               => __( 'Automatic text color', 'abientot' ),
			'form_max_width'                     => __( 'Form width', 'abientot' ),
			'form_padding'                       => __( 'Form padding', 'abientot' ),
			'form_container_border_radius'       => __( 'Border radius', 'abientot' ) . ' (' . __( 'Form surface', 'abientot' ) . ')',
			'form_border_radius'                 => __( 'Card radius', 'abientot' ),
			'form_hours_border_radius'           => __( 'Availability radius', 'abientot' ),
			'form_border_width'                  => __( 'Border width', 'abientot' ) . ' (' . __( 'Form surface', 'abientot' ) . ')',
			'form_border_color'                  => __( 'Border color', 'abientot' ) . ' (' . __( 'Form surface', 'abientot' ) . ')',
			'form_service_border_width'          => __( 'Card border width', 'abientot' ),
			'form_service_border_color_mode'     => __( 'Card border color mode', 'abientot' ),
			'form_service_border_color'          => __( 'Card border color', 'abientot' ),
			'form_service_background_color_mode' => __( 'Card background color mode', 'abientot' ),
			'form_service_background_color'      => __( 'Card background color', 'abientot' ),
			'form_category_background_color'     => __( 'Background', 'abientot' ) . ' (' . __( 'Categories', 'abientot' ) . ')',
			'form_field_text_color'              => __( 'Text color', 'abientot' ) . ' (' . __( 'Fields', 'abientot' ) . ')',
			'form_field_background_color'        => __( 'Background color', 'abientot' ) . ' (' . __( 'Fields', 'abientot' ) . ')',
			'form_field_border_color'            => __( 'Border color', 'abientot' ) . ' (' . __( 'Fields', 'abientot' ) . ')',
			'form_field_border_radius'           => __( 'Border radius', 'abientot' ) . ' (' . __( 'Fields', 'abientot' ) . ')',
			'form_field_border_width'            => __( 'Border width', 'abientot' ) . ' (' . __( 'Fields', 'abientot' ) . ')',
			'form_service_layout'                => __( 'Layout', 'abientot' ),
			'form_group_services'                => __( 'Grouping', 'abientot' ),
			'form_category_behavior'             => __( 'Behavior', 'abientot' ) . ' (' . __( 'Categories', 'abientot' ) . ')',
			'form_show_service_images'           => __( 'Show service images', 'abientot' ),
			'form_show_category_images'          => __( 'Show category images', 'abientot' ),
			'form_image_size'                    => __( 'Image size', 'abientot' ),
			'form_image_radius'                  => __( 'Image radius', 'abientot' ),
			'form_image_border_width'            => __( 'Image border width', 'abientot' ),
			'form_image_fit'                     => __( 'Image fit', 'abientot' ),
			'form_show_map'                      => __( 'Show location map when the default location has a map URL', 'abientot' ),
			'form_map_height'                    => __( 'Map height', 'abientot' ),
			'privacy_retention_statement'        => __( 'Retention period or criteria', 'abientot' ),
			'admin_notification_email'           => __( 'Admin notification email', 'abientot' ),
			'email_from_name'                    => __( 'Email from name', 'abientot' ),
			'email_from_address'                 => __( 'Email from address', 'abientot' ),
			'email_reply_to_address'             => __( 'Reply-to address', 'abientot' ),
			'privacy_controller_name'            => __( 'Controller legal name', 'abientot' ),
			'privacy_contact'                    => __( 'Privacy and rights contact', 'abientot' ),
			'privacy_policy_url'                 => __( 'Published privacy policy URL', 'abientot' ),
			'privacy_recipients'                 => __( 'Recipients and external providers', 'abientot' ),
			'booking_terms'                      => __( 'Terms & conditions', 'abientot' )
		);
		foreach ( \Abientot\Notifications\EmailService::template_labels() as$template => $template_label ) {
			$labels[ 'email_' . $template . '_enabled' ] = $template_label;
			$labels[ 'email_' . $template . '_subject' ] = $template_label . ': ' . __( 'Subject', 'abientot' );
			$labels[ 'email_' . $template . '_body' ]    = $template_label . ': ' . __( 'Body', 'abientot' );
		}
		$labels['form_title']           = __( 'Form title', 'abientot' );
		$labels['form_intro']           = __( 'Introductory text', 'abientot' );
		$labels['form_button_label']    = __( 'Button label', 'abientot' );
		$labels['confirmation_message'] = __( 'Confirmation message', 'abientot' );
		$labels['policy_checkbox_text'] = __( 'Consent label', 'abientot' );
		$labels['payment_instructions'] = __( 'Customer payment instructions', 'abientot' );
		foreach ( $fields as$key ) {
			if ( ( $old[ $key ] ?? null ) === ( $new[ $key ] ?? null ) ) {
				continue;
			}
			$label = $labels[ $key ] ?? __( 'Other configuration', 'abientot' );
			if ( in_array( $key, $safe, true ) ) {
				$format  = static function ( $v ) use ( $key ): string {
					if ( 'categories' === $key && is_array( $v ) ) {
						$available = \Abientot\Admin\ActivityCenter::categories();
						$selected  = array();
						foreach ( $v as$category ) {
							if ( is_scalar( $category ) && isset( $available[ (string) $category ] ) ) {
									$selected[] = $available[ (string) $category ];
							}
						}
						return implode( ', ', $selected );
					}
					return is_bool( $v ) ? ( $v ? __( 'Enabled', 'abientot' ) : __( 'Disabled', 'abientot' ) ) : ( is_array( $v ) ? implode( ', ', array_filter( $v, 'is_scalar' ) ) : ( is_scalar( $v ) ? (string) $v : __( 'Not set', 'abientot' ) ) );
				};
				$message = sprintf( /* translators: 1: setting label, 2: previous value, 3: new value. */ __( 'Setting %1$s changed from %2$s to %3$s.', 'abientot' ), $label, $format( $old[ $key ] ?? null ), $format( $new[ $key ] ?? null ) );
			} else {
				$message = sprintf( /* translators: %s: setting label. */ __( 'Setting %s changed.', 'abientot' ), $label );
			}
			$repo->record_event( 'settings', 0, 'settings_changed', $message, array( 'field' => (string) $key ) );
		}
	}
	public static function schedule_changed( int $location, ?array $old, array $new ): bool {
		if ( $old === $new ) {
			return true;
		}
		$days   = array( __( 'Sunday', 'abientot' ), __( 'Monday', 'abientot' ), __( 'Tuesday', 'abientot' ), __( 'Wednesday', 'abientot' ), __( 'Thursday', 'abientot' ), __( 'Friday', 'abientot' ), __( 'Saturday', 'abientot' ) );
		$format = static function ( ?array $week ) use ( $days ): string {
			if ( $week === null ) {
				return __( 'Not set', 'abientot' );
			}
			$parts = array();
			foreach ( $days as$id => $day ) {
				$periods     = ScheduleIntervals::normalize_entry( $week[ $id ] ?? array() )['periods'];
					$ranges  = array_map( static fn( array $p ): string=>substr( $p['start_time'], 0, 5 ) . '–' . substr( $p['end_time'], 0, 5 ) . ( ( $p['end_time'] < $p['start_time'] || ! empty( $p['day_offset'] ) ) ? ' (+1)' : '' ), $periods );
					$parts[] = $day . ': ' . ( $ranges ? implode( ', ', $ranges ) : __( 'Closed', 'abientot' ) );
			}
			return implode( '; ', $parts );
		};
		return( new ActivityLogRepository() )->record_event( 'settings', $location, 'settings_changed', sprintf( /* translators: 1: location ID, 2: previous weekly schedule, 3: new weekly schedule. */ __( 'Location #%1$d schedule changed from %2$s to %3$s.', 'abientot' ), $location, $format( $old ), $format( $new ) ), array( 'location_id' => $location ) );
	}
	public static function customer_changes( int $id, array $before, array $after, int $location = 0 ): bool {
		$labels  = array(
			'first_name'       => __( 'First name', 'abientot' ),
			'last_name'        => __( 'Last name', 'abientot' ),
			'email'            => __( 'Email', 'abientot' ),
			'phone'            => __( 'Phone', 'abientot' ),
			'notes'            => __( 'Notes', 'abientot' ),
			'marketing_opt_in' => __( 'Marketing consent', 'abientot' )
		);
		$changed = array();
		foreach ( $labels as$key => $label ) {
			if ( array_key_exists( $key, $after ) && (string) ( $before[ $key ] ?? '' ) !== (string) $after[ $key ] ) {
				$changed[ $key ] = $label;
			}
		}
		return ! $changed || ( new ActivityLogRepository() )->record_event(
			'customer',
			$id,
			'customer_updated',
			sprintf( /* translators: 1: customer ID, 2: comma-separated list of changed field labels. */ __( 'Customer #%1$d information updated: %2$s.', 'abientot' ), $id, implode( ', ', $changed ) ),
			array(
				'fields'      => array_keys( $changed ),
				'location_id' => $location
			)
		);
	}
	private function windows( array $prefs ): array {
		static $cache = array();
		$key          = (int) $prefs['hours'] . ':' . (int) $prefs['extend_closures'];
		if ( ! isset( $cache[ $key ] ) ) {
			$cache[ $key ] = ( new \Abientot\Repositories\ActivityLocationsRepository() )->notification_windows( time(), (int) $prefs['hours'], (bool) $prefs['extend_closures'] );
		}
		return $cache[ $key ];
	}
	public function query_since( int $since, array $prefs ): int {
		$windows = $this->windows( $prefs );
		return $windows ? min( $since, min( $windows ) ) : $since;
	}
	public function row_since( int $since, array $row, array $prefs ): int {
		$windows  = $this->windows( $prefs );
		$location = (int) ( $row['location_id'] ?? 0 );
		return $location ? ( $windows[ $location ] ?? $since ) : ( $windows ? min( $since, min( $windows ) ) : $since );
	}
}