<?php
/**
 * Centralized hooks manager
 *
 * @package Airy_Frontend_Forms
 * @since   1.0.0
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Hooks Manager Class
 *
 * Handles admin script enqueuing and post status transitions.
 *
 * Note: Frontend scripts are handled exclusively by AFFCF_Frontend class
 * which properly checks for shortcode presence and includes all required
 * localization data including autoSaveEnabled for the auto-save feature.
 *
 * @since 1.0.0
 */
class AFFCF_Hooks {
	use AFFCF_Singleton;

	/**
	 * Initialize hooks
	 *
	 * @since 1.0.0
	 * @return void
	 */
	protected function init() {
		// Admin scripts only - frontend scripts handled by AFFCF_Frontend.
		add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );

		// Post status transitions for email notifications.
		add_action( 'transition_post_status', array( $this, 'handle_post_status_change' ), 10, 3 );

		// Fix SCF/ACF time_picker crash: ensure dateTimePickerL10n is available.
		// SCF's time_picker JS depends on dateTimePickerL10n which is set by the
		// date_time_picker field class. If it's missing, the time_picker crashes
		// with "can't access property selectText, acf.get(...) is null".
		add_action( 'admin_enqueue_scripts', array( $this, 'ensure_datetime_picker_l10n' ), 999 );

		// Fix icon_picker crash: ensure stored values are always in array format.
		// SCF's icon_picker render_field() expects array('type'=>...,'value'=>...)
		// but values saved before this fix may be plain strings, causing a fatal
		// "Cannot access offset of type string on string" error on admin edit screens.
		add_filter( 'acf/load_value/type=icon_picker', array( $this, 'fix_icon_picker_value' ), 10, 3 );
	}

	/**
	 * Enqueue admin scripts and styles
	 *
	 * @since 1.0.0
	 * @param string $hook Current admin page hook.
	 * @return void
	 */
	public function admin_enqueue_scripts( $hook ) {
		// Only load on our plugin pages.
		if ( strpos( $hook, 'affcf' ) === false ) {
			return;
		}

		// CSS.
		wp_enqueue_style(
			'affcf-admin',
			AFFCF_PLUGIN_URL . 'assets/css/admin/admin-global.css',
			array(),
			AFFCF_VERSION
		);

		// JavaScript.
		wp_enqueue_script(
			'affcf-admin',
			AFFCF_PLUGIN_URL . 'assets/js/admin/admin-global.js',
			array( 'jquery' ),
			AFFCF_VERSION,
			true
		);

		// Localize script.
		wp_localize_script(
			'affcf-admin',
			'affcfAdmin',
			array(
				'ajaxurl' => admin_url( 'admin-ajax.php' ),
				'nonce'   => wp_create_nonce( 'affcf_admin_nonce' ),
			)
		);
	}

	/**
	 * Ensure dateTimePickerL10n is available for time_picker fields
	 *
	 * Fixes an SCF/ACF bug where the time_picker field JS crashes because it
	 * depends on dateTimePickerL10n localization set by the date_time_picker
	 * field class. When this localization is missing (e.g., the date_time_picker
	 * scripts weren't loaded), the time_picker initialization fails with a
	 * TypeError on admin post edit screens.
	 *
	 * Injects inline JS after the acf-input script to set the fallback data
	 * directly on acf.data before DOMContentLoaded field initialization runs.
	 *
	 * @since 1.0.0
	 * @return void
	 */
	public function ensure_datetime_picker_l10n() {
		// Only act if acf-input script is registered (ACF/SCF is active).
		if ( ! wp_script_is( 'acf-input', 'registered' ) && ! wp_script_is( 'acf-input', 'enqueued' ) ) {
			return;
		}

		$inline_js = '(function(){' .
			'if(typeof acf!=="undefined"&&acf.data&&!acf.data.dateTimePickerL10n){' .
				'acf.data.dateTimePickerL10n={' .
					'timeOnlyTitle:"Choose Time",' .
					'timeText:"Time",' .
					'hourText:"Hour",' .
					'minuteText:"Minute",' .
					'secondText:"Second",' .
					'millisecText:"Millisecond",' .
					'microsecText:"Microsecond",' .
					'timezoneText:"Time Zone",' .
					'currentText:"Now",' .
					'closeText:"Done",' .
					'selectText:"Select",' .
					'amNames:["AM","A"],' .
					'pmNames:["PM","P"]' .
				'};' .
			'}' .
		'})();';

		wp_add_inline_script( 'acf-input', $inline_js, 'after' );
	}

	/**
	 * Fix icon_picker field values that were saved as strings
	 *
	 * SCF's icon_picker render_field() expects the value to be an array with
	 * 'type' and 'value' keys. If a value was saved as a plain string (e.g.,
	 * from a frontend form submission before the format fix), this filter
	 * converts it to the expected array format to prevent a PHP fatal error.
	 *
	 * @since 1.0.0
	 * @param mixed $value   The field value.
	 * @param int   $post_id The post ID.
	 * @param array $field   The field array.
	 * @return array The value in the expected array format.
	 */
	public function fix_icon_picker_value( $value, $post_id, $field ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed -- Parameters required by ACF filter signature.
		// Already correct format.
		if ( is_array( $value ) ) {
			return $value;
		}

		// Null or empty — return empty array structure.
		if ( empty( $value ) ) {
			return array(
				'type'  => '',
				'value' => '',
			);
		}

		// String value — convert to expected array format.
		if ( is_string( $value ) ) {
			$icon_type = 'dashicons';
			if ( filter_var( $value, FILTER_VALIDATE_URL ) ) {
				$icon_type = 'url';
			}
			return array(
				'type'  => $icon_type,
				'value' => $value,
			);
		}

		// Unexpected type — return safe default.
		return array(
			'type'  => '',
			'value' => '',
		);
	}

	/**
	 * Handle post status changes for email notifications
	 *
	 * @since 1.0.0
	 * @param string  $new_status New post status.
	 * @param string  $old_status Old post status.
	 * @param WP_Post $post       Post object.
	 * @return void
	 */
	public function handle_post_status_change( $new_status, $old_status, $post ) {
		// Skip if not our form submission.
		$form_id = get_post_meta( $post->ID, '_affcf_form_id', true );
		if ( ! $form_id ) {
			return;
		}

		// Skip if status hasn't actually changed.
		if ( $new_status === $old_status ) {
			return;
		}

		// Skip auto-drafts and revisions.
		if ( in_array( $new_status, array( 'auto-draft', 'inherit' ), true ) || wp_is_post_revision( $post->ID ) ) {
			return;
		}

		try {
			// Get form object.
			$form_repo = new AFFCF_Form_Repository();
			$form      = $form_repo->get_by_id( $form_id );

			if ( ! $form ) {
				return;
			}

			// Get post author.
			$user_id = $post->post_author;

			// Initialize email manager.
			$email_manager = new AFFCF_Email_Manager();

			// Handle post published.
			if ( 'publish' === $new_status && 'publish' !== $old_status ) {
				$email_manager->send_post_published( $user_id, $post->ID, $form );
			}

			// Handle post moved to pending (from published or other status).
			if ( 'pending' === $new_status && in_array( $old_status, array( 'publish', 'draft' ), true ) ) {
				// Send submission received email for resubmissions.
				$email_manager->send_submission_received( $user_id, $post->ID, $form );
			}
		} catch ( Exception $e ) {
			// Silently fail - email notification is not critical.
			// Error is already handled by email manager.
			unset( $e ); // Suppress unused variable warning.
		}
	}
}