<?php
/**
 * Admin forms CPT metaboxes.
 *
 * @package AfriDirect_Payment
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Admin forms CPT class.
 */
class AfriDirect_Payment_Admin_Forms_CPT {

	/**
	 * Plugin instance.
	 *
	 * @var AfriDirect_Payment_Admin_Forms_CPT
	 */
	private static $instance = null;

	/**
	 * Get plugin instance.
	 *
	 * @return AfriDirect_Payment_Admin_Forms_CPT
	 */
	public static function instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	private function __construct() {
		$this->init_hooks();
	}

	/**
	 * Initialize hooks.
	 */
	private function init_hooks() {
		add_action( 'admin_menu', array( $this, 'add_admin_menu' ) );
		add_action( 'add_meta_boxes', array( $this, 'add_meta_boxes' ) );
		add_action( 'save_post', array( $this, 'save_meta_boxes' ), 10, 2 );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
	}

	/**
	 * Live show/hide of the fixed vs variable amount rows on the form editor.
	 *
	 * @param string $hook Current admin page hook.
	 */
	public function enqueue_scripts( $hook ) {
		if ( ( 'post.php' !== $hook && 'post-new.php' !== $hook ) || 'afridirect_form' !== get_post_type() ) {
			return;
		}

		wp_enqueue_script( 'jquery' );
		wp_add_inline_script(
			'jquery-core',
			"jQuery(function($){function t(){var m=$('#afridirect_form_mode').val();$('#afridirect_fixed_amount_row').toggle(m==='fixed');$('#afridirect_variable_amount_row').toggle(m==='variable');}$('#afridirect_form_mode').on('change',t);t();});"
		);
	}

	/**
	 * Add admin menu.
	 */
	public function add_admin_menu() {
		$menu_manager = AfriDirect_Payment_Admin_Menu::instance();
		$parent_slug = $menu_manager->get_menu_slug();
		
		add_submenu_page(
			$parent_slug,
			__( 'Payment Forms', 'afridirect-payment' ),
			__( 'Payment Forms', 'afridirect-payment' ),
			$menu_manager->get_capability(),
			'edit.php?post_type=afridirect_form'
		);
	}

	/**
	 * Add meta boxes.
	 *
	 * @param string $post_type Post type.
	 */
	public function add_meta_boxes( $post_type ) {
		if ( 'afridirect_form' !== $post_type ) {
			return;
		}

		add_meta_box(
			'afridirect_form_settings',
			__( 'Form Settings', 'afridirect-payment' ),
			array( $this, 'render_form_settings_meta_box' ),
			'afridirect_form',
			'normal',
			'high'
		);
	}

	/**
	 * Render form settings meta box.
	 *
	 * @param WP_Post $post Post object.
	 */
	public function render_form_settings_meta_box( $post ) {
		wp_nonce_field( 'afridirect_form_meta_box', 'afridirect_form_meta_box_nonce' );

		// Get existing values.
		$form_mode = get_post_meta( $post->ID, '_afridirect_form_mode', true ) ?: 'fixed';
		$fixed_amount = get_post_meta( $post->ID, '_afridirect_form_fixed_amount', true ) ?: '';
		$min_amount = get_post_meta( $post->ID, '_afridirect_form_min_amount', true ) ?: '';
		$max_amount = get_post_meta( $post->ID, '_afridirect_form_max_amount', true ) ?: '';
		$currency = get_post_meta( $post->ID, '_afridirect_form_currency', true ) ?: 'USD';
		$timer_minutes = absint( get_post_meta( $post->ID, '_afridirect_timer_minutes', true ) );
		if ( $timer_minutes < 1 ) {
			$timer_minutes = 30; // Default fallback.
		}
		$allowed_method_ids_raw = get_post_meta( $post->ID, '_afridirect_form_allowed_method_ids', true );
		$allowed_method_ids = AfriDirect_Payment_Forms_Helper::normalize_method_ids( $allowed_method_ids_raw );
		$require_name = get_post_meta( $post->ID, '_afridirect_form_require_name', true ) !== '0';
		$require_email = get_post_meta( $post->ID, '_afridirect_form_require_email', true ) !== '0';
		$require_phone = get_post_meta( $post->ID, '_afridirect_form_require_phone', true ) === '1';
		$success_message = get_post_meta( $post->ID, '_afridirect_form_success_message', true ) ?: __( 'Your payment request has been created. Taking you to the payment instructions...', 'afridirect-payment' );
		$button_text = get_post_meta( $post->ID, '_afridirect_form_button_text', true ) ?: __( 'Continue', 'afridirect-payment' );

		// Get all payment methods.
		$all_methods = AfriDirect_Payment_Methods::get_all();

		include AFRIDIRECT_PAYMENT_PLUGIN_DIR . 'admin/views/form-settings-meta-box.php';
	}

	/**
	 * Save meta boxes.
	 *
	 * @param int     $post_id Post ID.
	 * @param WP_Post $post Post object.
	 */
	public function save_meta_boxes( $post_id, $post ) {
		// Check if this is an autosave.
		if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
			return;
		}

		// Check post type.
		if ( 'afridirect_form' !== $post->post_type ) {
			return;
		}

		// Check nonce.
		if ( ! isset( $_POST['afridirect_form_meta_box_nonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['afridirect_form_meta_box_nonce'] ) ), 'afridirect_form_meta_box' ) ) {
			return;
		}

		// Check permissions.
		if ( ! current_user_can( 'edit_post', $post_id ) ) {
			return;
		}

		// Save form mode.
		$form_mode = isset( $_POST['afridirect_form_mode'] ) ? sanitize_text_field( wp_unslash( $_POST['afridirect_form_mode'] ) ) : 'fixed';
		if ( ! in_array( $form_mode, array( 'fixed', 'variable' ), true ) ) {
			$form_mode = 'fixed';
		}
		update_post_meta( $post_id, '_afridirect_form_mode', $form_mode );

		// Save fixed amount (if fixed mode).
		if ( 'fixed' === $form_mode ) {
			$fixed_amount = isset( $_POST['afridirect_form_fixed_amount'] ) ? floatval( $_POST['afridirect_form_fixed_amount'] ) : 0;
			update_post_meta( $post_id, '_afridirect_form_fixed_amount', $fixed_amount );
		} else {
			// Save min/max amounts (if variable mode).
			$min_amount = isset( $_POST['afridirect_form_min_amount'] ) ? floatval( $_POST['afridirect_form_min_amount'] ) : 0;
			$max_amount = isset( $_POST['afridirect_form_max_amount'] ) ? floatval( $_POST['afridirect_form_max_amount'] ) : 0;
			update_post_meta( $post_id, '_afridirect_form_min_amount', $min_amount );
			update_post_meta( $post_id, '_afridirect_form_max_amount', $max_amount );
		}

		// Save currency.
		$currency = isset( $_POST['afridirect_form_currency'] ) ? sanitize_text_field( wp_unslash( $_POST['afridirect_form_currency'] ) ) : 'USD';
		update_post_meta( $post_id, '_afridirect_form_currency', strtoupper( $currency ) );

		// Save timer minutes.
		$timer_minutes = isset( $_POST['afridirect_timer_minutes'] ) ? absint( $_POST['afridirect_timer_minutes'] ) : 0;
		if ( $timer_minutes < 1 ) {
			$timer_minutes = 30; // Fallback to 30 if empty or invalid.
		}
		update_post_meta( $post_id, '_afridirect_timer_minutes', $timer_minutes );

		// Save allowed method IDs.
		$allowed_method_ids = array();
		if ( isset( $_POST['afridirect_form_allowed_method_ids'] ) && is_array( $_POST['afridirect_form_allowed_method_ids'] ) ) {
			$posted_ids = array_map( 'sanitize_text_field', wp_unslash( $_POST['afridirect_form_allowed_method_ids'] ) );
			
			// Remove empty values and ensure unique.
			$allowed_method_ids = array_filter( array_unique( $posted_ids ) );
			$allowed_method_ids = array_values( $allowed_method_ids ); // Re-index array.
		} elseif ( isset( $_POST['afridirect_form_allowed_method_ids'] ) && is_string( $_POST['afridirect_form_allowed_method_ids'] ) && ! empty( $_POST['afridirect_form_allowed_method_ids'] ) ) {
			// Handle comma-separated string.
			$posted_string = sanitize_text_field( wp_unslash( $_POST['afridirect_form_allowed_method_ids'] ) );
			$allowed_method_ids = array_map( 'sanitize_text_field', explode( ',', $posted_string ) );
			
			// Remove empty values and ensure unique.
			$allowed_method_ids = array_filter( array_unique( $allowed_method_ids ) );
			$allowed_method_ids = array_values( $allowed_method_ids ); // Re-index array.
		}
		
		// Always save as array (WordPress will serialize automatically).
		update_post_meta( $post_id, '_afridirect_form_allowed_method_ids', $allowed_method_ids );

		// Save required fields.
		$require_name = isset( $_POST['afridirect_form_require_name'] ) ? '1' : '0';
		$require_email = isset( $_POST['afridirect_form_require_email'] ) ? '1' : '0';
		$require_phone = isset( $_POST['afridirect_form_require_phone'] ) ? '1' : '0';
		update_post_meta( $post_id, '_afridirect_form_require_name', $require_name );
		update_post_meta( $post_id, '_afridirect_form_require_email', $require_email );
		update_post_meta( $post_id, '_afridirect_form_require_phone', $require_phone );

		// Save success message.
		$success_message = isset( $_POST['afridirect_form_success_message'] ) ? sanitize_textarea_field( wp_unslash( $_POST['afridirect_form_success_message'] ) ) : '';
		update_post_meta( $post_id, '_afridirect_form_success_message', $success_message );

		// Save button text.
		$button_text = isset( $_POST['afridirect_form_button_text'] ) ? sanitize_text_field( wp_unslash( $_POST['afridirect_form_button_text'] ) ) : '';
		update_post_meta( $post_id, '_afridirect_form_button_text', $button_text );
	}
}