<?php
/**
 * Admin area bootstrap.
 *
 * @package Abstract_One_CRM_Form_Integration
 */

defined( 'ABSPATH' ) || exit;

/**
 * Class AOLI_Admin
 */
class AOLI_Admin {

	/**
	 * Constructor.
	 */
	public function __construct() {
		add_action( 'admin_menu', array( $this, 'register_menus' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_assets' ) );
		add_action( 'wp_ajax_aoli_get_forms', array( $this, 'ajax_get_forms' ) );
		add_action( 'wp_ajax_aoli_get_form_fields', array( $this, 'ajax_get_form_fields' ) );
	}

	/**
	 * Register admin menus.
	 */
	public function register_menus() {
		add_menu_page(
			__( 'Abstract One Forms', 'abstract-one-crm-form-integration' ),
			__( 'Abstract One', 'abstract-one-crm-form-integration' ),
			'manage_options',
			'aoli-workflows',
			array( $this, 'render_workflows_page' ),
			'dashicons-randomize',
			58
		);

		add_submenu_page(
			'aoli-workflows',
			__( 'Workflows', 'abstract-one-crm-form-integration' ),
			__( 'Workflows', 'abstract-one-crm-form-integration' ),
			'manage_options',
			'aoli-workflows',
			array( $this, 'render_workflows_page' )
		);

		add_submenu_page(
			'aoli-workflows',
			__( 'Add Workflow', 'abstract-one-crm-form-integration' ),
			__( 'Add Workflow', 'abstract-one-crm-form-integration' ),
			'manage_options',
			'aoli-add-workflow',
			array( $this, 'render_workflow_form_page' )
		);

		add_submenu_page(
			'aoli-workflows',
			__( 'Instructions', 'abstract-one-crm-form-integration' ),
			__( 'Instructions', 'abstract-one-crm-form-integration' ),
			'manage_options',
			'aoli-instructions',
			array( $this, 'render_instructions_page' )
		);
	}

	/**
	 * Enqueue admin assets.
	 *
	 * @param string $hook Current admin page hook.
	 */
	public function enqueue_assets( $hook ) {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$page = isset( $_GET['page'] ) ? sanitize_key( wp_unslash( $_GET['page'] ) ) : '';
		$allowed_pages = array( 'aoli-workflows', 'aoli-add-workflow', 'aoli-instructions' );

		if ( ! in_array( $page, $allowed_pages, true )
			&& false === strpos( $hook, 'aoli-' )
			&& false === strpos( $hook, 'abstract-one' ) ) {
			return;
		}

		wp_enqueue_style(
			'aoli-admin',
			AOLI_PLUGIN_URL . 'admin/assets/css/admin.css',
			array(),
			AOLI_VERSION
		);

		wp_enqueue_script(
			'aoli-admin',
			AOLI_PLUGIN_URL . 'admin/assets/js/admin.js',
			array( 'jquery' ),
			AOLI_VERSION,
			true
		);

		wp_localize_script(
			'aoli-admin',
			'aoliAdmin',
			array(
				'ajaxUrl' => admin_url( 'admin-ajax.php' ),
				'nonce'   => wp_create_nonce( 'aoli_admin' ),
				'i18n'    => array(
					'selectForm'   => __( '— Select Form —', 'abstract-one-crm-form-integration' ),
					'selectField'  => __( '— Select Field —', 'abstract-one-crm-form-integration' ),
					'noForms'      => __( 'No forms found for this plugin.', 'abstract-one-crm-form-integration' ),
					'noFields'     => __( 'No form fields found. Make sure the form has input fields and Contact Form 7 is active.', 'abstract-one-crm-form-integration' ),
					'fieldsError'  => __( 'Could not load form fields. Please refresh the page and try again.', 'abstract-one-crm-form-integration' ),
					'loading'      => __( 'Loading…', 'abstract-one-crm-form-integration' ),
					'utmAuto'      => __( 'Auto from URL / Cookie', 'abstract-one-crm-form-integration' ),
				),
			)
		);

		if ( 'aoli-workflows' === $page ) {
			wp_add_inline_script(
				'aoli-admin',
				"jQuery(function ($) {
	$('#cb-select-all-1, #cb-select-all-2').on('click', function () {
		$('input[name=\"workflow_ids[]\"]').prop('checked', this.checked);
	});
});"
			);
		}
	}

	/**
	 * Render workflows list or handle actions.
	 */
	public function render_workflows_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'You do not have permission to access this page.', 'abstract-one-crm-form-integration' ) );
		}

		$this->handle_list_actions();

		$action = isset( $_GET['action'] ) ? sanitize_key( wp_unslash( $_GET['action'] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended

		if ( 'edit' === $action ) {
			$this->render_workflow_form_page();
			return;
		}

		$per_page     = 20;
		$current_page = isset( $_GET['paged'] ) ? max( 1, absint( $_GET['paged'] ) ) : 1; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$search       = isset( $_GET['s'] ) ? sanitize_text_field( wp_unslash( $_GET['s'] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended

		$result = AOLI_Workflow_Repository::list(
			array(
				'search'   => $search,
				'per_page' => $per_page,
				'page'     => $current_page,
			)
		);

		$workflows   = $result['items'];
		$total       = $result['total'];
		$total_pages = (int) ceil( $total / $per_page );

		include AOLI_PLUGIN_DIR . 'admin/views/workflows-list.php';
	}

	/**
	 * Render workflow create/edit form.
	 */
	public function render_workflow_form_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'You do not have permission to access this page.', 'abstract-one-crm-form-integration' ) );
		}

		$workflow = null;
		$errors   = array();

		if ( isset( $_GET['id'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			$workflow = AOLI_Workflow_Repository::get( absint( wp_unslash( $_GET['id'] ) ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		}

		if ( 'POST' === $_SERVER['REQUEST_METHOD'] && isset( $_POST['aoli_save_workflow'] ) ) {
			check_admin_referer( 'aoli_save_workflow', 'aoli_workflow_nonce' );

			$data = $this->parse_workflow_post();
			$errors = AOLI_Workflow_Repository::validate( $data, ! empty( $data['id'] ) );

			if ( empty( $errors ) ) {
				$saved_id = AOLI_Workflow_Repository::save( $data );
				if ( $saved_id ) {
					wp_safe_redirect(
						add_query_arg(
							array(
								'page'    => 'aoli-workflows',
								'updated' => '1',
							),
							admin_url( 'admin.php' )
						)
					);
					exit;
				}
				$errors['general'] = __( 'Could not save workflow. Please try again.', 'abstract-one-crm-form-integration' );
			}

			$workflow = $data;
		}

		include AOLI_PLUGIN_DIR . 'admin/views/workflow-form.php';
	}

	/**
	 * Render instructions page.
	 */
	public function render_instructions_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'You do not have permission to access this page.', 'abstract-one-crm-form-integration' ) );
		}

		include AOLI_PLUGIN_DIR . 'admin/views/instructions.php';
	}

	/**
	 * Handle list page actions.
	 */
	private function handle_list_actions() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
		if ( empty( $_POST['page'] ) || 'aoli-workflows' !== sanitize_key( wp_unslash( $_POST['page'] ) ) ) {
			$action = isset( $_GET['action'] ) ? sanitize_key( wp_unslash( $_GET['action'] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended

			if ( in_array( $action, array( 'activate', 'deactivate', 'delete' ), true ) && ! empty( $_GET['id'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
				$id = absint( $_GET['id'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended

				if ( 'delete' === $action ) {
					check_admin_referer( 'aoli_delete_workflow_' . $id );
					AOLI_Workflow_Repository::delete( array( $id ) );
				} else {
					check_admin_referer( 'aoli_toggle_workflow_' . $id );
					AOLI_Workflow_Repository::update_status( array( $id ), 'activate' === $action ? 'active' : 'inactive' );
				}

				wp_safe_redirect( add_query_arg( array( 'page' => 'aoli-workflows', 'updated' => '1' ), admin_url( 'admin.php' ) ) );
				exit;
			}

			return;
		}

		$action = isset( $_POST['action'] ) ? sanitize_key( wp_unslash( $_POST['action'] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$action = ( '-1' === $action || '' === $action ) && ! empty( $_POST['action2'] ) // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			? sanitize_key( wp_unslash( $_POST['action2'] ) ) // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			: $action;

		$allowed = array( 'activate', 'deactivate', 'delete' );

		if ( in_array( $action, $allowed, true ) && ! empty( $_POST['workflow_ids'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			check_admin_referer( 'bulk-workflows' );

			$ids = array_map( 'absint', (array) wp_unslash( $_POST['workflow_ids'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended

			if ( 'delete' === $action ) {
				AOLI_Workflow_Repository::delete( $ids );
			} else {
				AOLI_Workflow_Repository::update_status( $ids, 'activate' === $action ? 'active' : 'inactive' );
			}

			wp_safe_redirect( add_query_arg( array( 'page' => 'aoli-workflows', 'updated' => '1' ), admin_url( 'admin.php' ) ) );
			exit;
		}
	}

	/**
	 * Parse workflow POST data.
	 *
	 * @return array
	 */
	private function parse_workflow_post() {
		$field_mapping = array();
		if ( ! empty( $_POST['field_mapping'] ) && is_array( $_POST['field_mapping'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing
			foreach ( $_POST['field_mapping'] as $crm_field => $form_field ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing
				$field_mapping[ sanitize_key( $crm_field ) ] = sanitize_text_field( wp_unslash( $form_field ) );
			}
		}

		return array(
			'id'            => isset( $_POST['workflow_id'] ) ? absint( $_POST['workflow_id'] ) : 0, // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'name'          => isset( $_POST['name'] ) ? wp_unslash( $_POST['name'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'description'   => isset( $_POST['description'] ) ? wp_unslash( $_POST['description'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'form_plugin'   => isset( $_POST['form_plugin'] ) ? wp_unslash( $_POST['form_plugin'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'form_id'       => isset( $_POST['form_id'] ) ? wp_unslash( $_POST['form_id'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'api_key'       => isset( $_POST['api_key'] ) ? wp_unslash( $_POST['api_key'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'project_id'    => isset( $_POST['project_id'] ) ? wp_unslash( $_POST['project_id'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'campaign_id'   => isset( $_POST['campaign_id'] ) ? wp_unslash( $_POST['campaign_id'] ) : '', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'sub_source'    => isset( $_POST['sub_source'] ) ? wp_unslash( $_POST['sub_source'] ) : 'Organic', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'status'        => isset( $_POST['status'] ) ? wp_unslash( $_POST['status'] ) : 'active', // phpcs:ignore WordPress.Security.NonceVerification.Missing
			'field_mapping' => $field_mapping,
		);
	}

	/**
	 * AJAX: get forms for plugin.
	 */
	public function ajax_get_forms() {
		check_ajax_referer( 'aoli_admin', 'nonce' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( array( 'message' => __( 'Permission denied.', 'abstract-one-crm-form-integration' ) ), 403 );
		}

		$plugin = isset( $_POST['form_plugin'] ) ? sanitize_key( wp_unslash( $_POST['form_plugin'] ) ) : '';

		$forms = array();
		if ( 'cf7' === $plugin ) {
			$forms = AOLI_Form_Handler_CF7::get_forms();
		} elseif ( 'wpforms' === $plugin ) {
			$forms = AOLI_Form_Handler_WPForms::get_forms();
		}

		wp_send_json_success( array( 'forms' => $forms ) );
	}

	/**
	 * AJAX: get fields for a form.
	 */
	public function ajax_get_form_fields() {
		check_ajax_referer( 'aoli_admin', 'nonce' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( array( 'message' => __( 'Permission denied.', 'abstract-one-crm-form-integration' ) ), 403 );
		}

		$plugin  = isset( $_POST['form_plugin'] ) ? sanitize_key( wp_unslash( $_POST['form_plugin'] ) ) : '';
		$form_id = isset( $_POST['form_id'] ) ? absint( $_POST['form_id'] ) : 0;

		$fields = array();
		if ( 'cf7' === $plugin ) {
			if ( ! class_exists( 'WPCF7' ) && ! post_type_exists( 'wpcf7_contact_form' ) ) {
				wp_send_json_error(
					array( 'message' => __( 'Contact Form 7 is not active.', 'abstract-one-crm-form-integration' ) ),
					400
				);
			}
			$fields = AOLI_Form_Handler_CF7::get_form_fields( $form_id );
		} elseif ( 'wpforms' === $plugin ) {
			if ( ! post_type_exists( 'wpforms' ) ) {
				wp_send_json_error(
					array( 'message' => __( 'WPForms is not active.', 'abstract-one-crm-form-integration' ) ),
					400
				);
			}
			$fields = AOLI_Form_Handler_WPForms::get_form_fields( $form_id );
		} else {
			wp_send_json_error(
				array( 'message' => __( 'Invalid form plugin.', 'abstract-one-crm-form-integration' ) ),
				400
			);
		}

		wp_send_json_success( array( 'fields' => $fields ) );
	}
}