<?php
/**
 * Post Forms or wpuf_forms form builder class
 */
class WPUF_Admin_Form {
    /**
     * Form type of which we're working on
     *
     * @var string
     */
    private $form_type = 'post';

    /**
     * Form settings key
     *
     * @var string
     */
    private $form_settings_key = 'wpuf_form_settings';

    /**
     * WP post types
     *
     * @var string
     */
    private $wp_post_types = [];

    /**
     * Add neccessary actions and filters
     *
     * @return void
     */
    public function __construct() {
        add_action( 'init', [$this, 'register_post_type'] );
        add_action( 'load-user-frontend_page_wpuf-post-forms', [ $this, 'post_forms_builder_init' ] );
    }

    /**
     * Register form post types
     *
     * @return void
     */
    public function register_post_type() {
        $capability = wpuf_admin_role();

        register_post_type( 'wpuf_forms', [
            'label'           => __( 'Forms', 'wp-user-frontend' ),
            'public'          => false,
            'show_ui'         => false,
            'show_in_menu'    => false, //false,
            'capability_type' => 'post',
            'hierarchical'    => false,
            'query_var'       => false,
            'supports'        => ['title'],
            'capabilities'    => [
                'publish_posts'       => $capability,
                'edit_posts'          => $capability,
                'edit_others_posts'   => $capability,
                'delete_posts'        => $capability,
                'delete_others_posts' => $capability,
                'read_private_posts'  => $capability,
                'edit_post'           => $capability,
                'delete_post'         => $capability,
                'read_post'           => $capability,
            ],
            'labels' => [
                'name'               => __( 'Forms', 'wp-user-frontend' ),
                'singular_name'      => __( 'Form', 'wp-user-frontend' ),
                'menu_name'          => __( 'Forms', 'wp-user-frontend' ),
                'add_new'            => __( 'Add Form', 'wp-user-frontend' ),
                'add_new_item'       => __( 'Add New Form', 'wp-user-frontend' ),
                'edit'               => __( 'Edit', 'wp-user-frontend' ),
                'edit_item'          => __( 'Edit Form', 'wp-user-frontend' ),
                'new_item'           => __( 'New Form', 'wp-user-frontend' ),
                'view'               => __( 'View Form', 'wp-user-frontend' ),
                'view_item'          => __( 'View Form', 'wp-user-frontend' ),
                'search_items'       => __( 'Search Form', 'wp-user-frontend' ),
                'not_found'          => __( 'No Form Found', 'wp-user-frontend' ),
                'not_found_in_trash' => __( 'No Form Found in Trash', 'wp-user-frontend' ),
                'parent'             => __( 'Parent Form', 'wp-user-frontend' ),
            ],
        ] );

        register_post_type( 'wpuf_profile', [
            'label'           => __( 'Registraton Forms', 'wp-user-frontend' ),
            'public'          => false,
            'show_ui'         => false,
            'show_in_menu'    => false,
            'capability_type' => 'post',
            'hierarchical'    => false,
            'query_var'       => false,
            'supports'        => ['title'],
            'capabilities'    => [
                'publish_posts'       => $capability,
                'edit_posts'          => $capability,
                'edit_others_posts'   => $capability,
                'delete_posts'        => $capability,
                'delete_others_posts' => $capability,
                'read_private_posts'  => $capability,
                'edit_post'           => $capability,
                'delete_post'         => $capability,
                'read_post'           => $capability,
            ],
            'labels' => [
                'name'               => __( 'Forms', 'wp-user-frontend' ),
                'singular_name'      => __( 'Form', 'wp-user-frontend' ),
                'menu_name'          => __( 'Registration Forms', 'wp-user-frontend' ),
                'add_new'            => __( 'Add Form', 'wp-user-frontend' ),
                'add_new_item'       => __( 'Add New Form', 'wp-user-frontend' ),
                'edit'               => __( 'Edit', 'wp-user-frontend' ),
                'edit_item'          => __( 'Edit Form', 'wp-user-frontend' ),
                'new_item'           => __( 'New Form', 'wp-user-frontend' ),
                'view'               => __( 'View Form', 'wp-user-frontend' ),
                'view_item'          => __( 'View Form', 'wp-user-frontend' ),
                'search_items'       => __( 'Search Form', 'wp-user-frontend' ),
                'not_found'          => __( 'No Form Found', 'wp-user-frontend' ),
                'not_found_in_trash' => __( 'No Form Found in Trash', 'wp-user-frontend' ),
                'parent'             => __( 'Parent Form', 'wp-user-frontend' ),
            ],
        ] );

        register_post_type( 'wpuf_input', [
            'public'          => false,
            'show_ui'         => false,
            'show_in_menu'    => false,
        ] );
    }

    /**
     * Initiate form builder for wpuf_forms post type
     *
     * @since 2.5
     *
     * @return void
     */
    public function post_forms_builder_init() {
        if ( !isset( $_GET['action'] ) ) {
            return;
        }

        if ( 'add-new' === $_GET['action'] && empty( $_GET['id'] ) ) {
            $form_id          = wpuf_create_sample_form( 'Sample Form', 'wpuf_forms', true );
            $add_new_page_url = add_query_arg( [ 'id' => $form_id ], admin_url( 'admin.php?page=wpuf-post-forms&action=edit' ) );
            wp_redirect( $add_new_page_url );
        }

        if ( ( 'edit' === $_GET['action'] ) && !empty( $_GET['id'] ) ) {
            add_action( 'wpuf-form-builder-tabs-post', [ $this, 'add_primary_tabs' ] );
            add_action( 'wpuf-form-builder-tab-contents-post', [ $this, 'add_primary_tab_contents' ] );
            add_action( 'wpuf-form-builder-settings-tabs-post', [ $this, 'add_settings_tabs' ] );
            add_action( 'wpuf-form-builder-settings-tab-contents-post', [ $this, 'add_settings_tab_contents' ] );
            add_filter( 'wpuf-form-fields-section-before', [ $this, 'add_post_field_section' ] );
            add_action( 'admin_enqueue_scripts', [ $this, 'admin_enqueue_scripts' ] );
            add_action( 'wpuf-form-builder-js-deps', [ $this, 'js_dependencies' ] );
            add_filter( 'wpuf-form-builder-js-root-mixins', [ $this, 'js_root_mixins' ] );
            add_filter( 'wpuf-form-builder-js-builder-stage-mixins', [ $this, 'js_builder_stage_mixins' ] );
            add_filter( 'wpuf-form-builder-js-field-options-mixins', [ $this, 'js_field_options_mixins' ] );
            add_action( 'wpuf-form-builder-template-builder-stage-submit-area', [ $this, 'add_form_submit_area' ] );
            add_action( 'wpuf-form-builder-localize-script', [ $this, 'add_to_localize_script' ] );
            add_filter( 'wpuf-form-fields', [ $this, 'add_field_settings' ] );
            add_filter( 'wpuf-form-builder-i18n', [ $this, 'i18n' ] );

            do_action( 'wpuf-form-builder-init-type-wpuf_forms' );

            $this->set_wp_post_types();

            $settings = [
                'form_type'         => 'post',
                'post_type'         => 'wpuf_forms',
                'post_id'           => isset( $_GET['id'] ) ? intval( wp_unslash( $_GET['id'] ) ) : '',
                'form_settings_key' => $this->form_settings_key,
                'shortcodes'        => [ [ 'name' => 'wpuf_form' ] ],
            ];

            new WPUF_Admin_Form_Builder( $settings );
        }
    }

    /**
     * Additional primary tabs
     *
     * @since 2.5
     *
     * @return void
     */
    public function add_primary_tabs() {
        ?>

        <a href="#wpuf-form-builder-notification" class="nav-tab">
            <?php esc_html_e( 'Notification', 'wp-user-frontend' ); ?>
        </a>

        <?php
    }

    /**
     * Add primary tab contents
     *
     * @since 2.5
     *
     * @return void
     */
    public function add_primary_tab_contents() {
        ?>

        <div id="wpuf-form-builder-notification" class="group">
            <?php do_action( 'wpuf_form_settings_post_notification' ); ?>
        </div><!-- #wpuf-form-builder-notification -->

        <?php
    }

    /**
     * Add settings tabs
     *
     * @since 2.5
     *
     * @return void
     */
    public function add_settings_tabs() {
        ?>

            <a href="#wpuf-metabox-settings" class="nav-tab"><?php esc_html_e( 'Post Settings', 'wp-user-frontend' ); ?></a>
            <a href="#wpuf-metabox-settings-update" class="nav-tab"><?php esc_html_e( 'Edit Settings', 'wp-user-frontend' ); ?></a>
            <a href="#wpuf-metabox-submission-restriction" class="nav-tab"><?php esc_html_e( 'Submission Restriction', 'wp-user-frontend' ); ?></a>
            <a href="#wpuf-metabox-settings-payment" class="nav-tab"><?php esc_html_e( 'Payment Settings', 'wp-user-frontend' ); ?></a>
            <a href="#wpuf-metabox-settings-display" class="nav-tab"><?php esc_html_e( 'Display Settings', 'wp-user-frontend' ); ?></a>
            <a href="#wpuf-metabox-post_expiration" class="nav-tab"><?php esc_html_e( 'Post Expiration', 'wp-user-frontend' ); ?></a>

            <?php do_action( 'wpuf_post_form_tab' ); ?>

        <?php
    }

    /**
     * Add settings tabs
     *
     * @since 2.5
     *
     * @return void
     */
    public function add_settings_tab_contents() {
        global $post;

        $form_settings = wpuf_get_form_settings( $post->ID ); ?>

            <div id="wpuf-metabox-settings" class="group">
                <?php include_once __DIR__ . '/html/form-settings-post.php'; ?>
            </div>

            <div id="wpuf-metabox-settings-update" class="group">
                <?php include_once __DIR__ . '/html/form-settings-post-edit.php'; ?>
            </div>

            <div id="wpuf-metabox-submission-restriction" class="group">
                <?php include_once __DIR__ . '/html/form-submission-restriction.php'; ?>
            </div>

            <div id="wpuf-metabox-settings-payment" class="group">
                <?php include_once __DIR__ . '/html/form-settings-payment.php'; ?>
            </div>

            <div id="wpuf-metabox-settings-display" class="group">
                <?php include_once __DIR__ . '/html/form-settings-display.php'; ?>
            </div>

            <div id="wpuf-metabox-post_expiration" class="group wpuf-metabox-post_expiration">
                <?php $this->form_post_expiration(); ?>
            </div>

            <?php do_action( 'wpuf_post_form_tab_content' ); ?>

        <?php
    }

    /**
     * Subscription dropdown
     *
     * @since 2.5
     *
     * @param string $selected
     *
     * @return void
     */
    public function subscription_dropdown( $selected = null ) {
        $subscriptions = WPUF_Subscription::init()->get_subscriptions();

        if ( !$subscriptions ) {
            printf( '<option>%s</option>', esc_html( __( '- Select -', 'wp-user-frontend' ) ) );

            return;
        }

        printf( '<option>%s</option>', esc_html( __( '- Select -', 'wp-user-frontend' ) ) );

        foreach ( $subscriptions as $key => $subscription ) {
            ?>
                <option value="<?php echo esc_attr( $subscription->ID ); ?>" <?php selected( $selected, $subscription->ID ); ?> ><?php echo esc_html( $subscription->post_title ); ?></option>
            <?php
        }
    }

    /**
     * Settings for post expiration
     *
     * @since 2.2.7
     *
     * @global $post
     */
    public function form_post_expiration() {
        do_action( 'wpuf_form_post_expiration' );
    }

    /**
     * Add post fields in form builder
     *
     * @since 2.5
     *
     * @return array
     */
    public function add_post_field_section() {
        $post_fields = apply_filters( 'wpuf-form-builder-wp_forms-fields-section-post-fields', [
            'post_title', 'post_content', 'post_excerpt', 'featured_image',
        ] );

        return [
            [
                'title'     => __( 'Post Fields', 'wp-user-frontend' ),
                'id'        => 'post-fields',
                'fields'    => $post_fields,
            ],

            [
                'title'     => __( 'Taxonomies', 'wp-user-frontend' ),
                'id'        => 'taxonomies',
                'fields'    => [],
            ],
        ];
    }

    /**
     * Admin script form wpuf_forms form builder
     *
     * @since 2.5
     *
     * @return void
     */
    public function admin_enqueue_scripts() {
        wp_register_script(
            'wpuf-form-builder-wpuf-forms',
            WPUF_ASSET_URI . '/js/wpuf-form-builder-wpuf-forms.js',
            [ 'jquery', 'underscore', 'wpuf-vue', 'wpuf-vuex' ],
            WPUF_VERSION,
            true
         );
    }

    /**
     * Add dependencies to form builder script
     *
     * @since 2.5
     *
     * @param array $deps
     *
     * @return array
     */
    public function js_dependencies( $deps ) {
        $deps[] = 'wpuf-form-builder-wpuf-forms';

        return apply_filters( 'wpuf-form-builder-wpuf-forms-js-deps', $deps );
    }

    /**
     * Add mixins to root instance
     *
     * @since 2.5
     *
     * @param array $mixins
     *
     * @return array
     */
    public function js_root_mixins( $mixins ) {
        array_push( $mixins, 'wpuf_forms_mixin_root' );

        return $mixins;
    }

    /**
     * Add mixins to form builder builder stage component
     *
     * @since 2.5
     *
     * @param array $mixins
     *
     * @return array
     */
    public function js_builder_stage_mixins( $mixins ) {
        array_push( $mixins, 'wpuf_forms_mixin_builder_stage' );

        return $mixins;
    }

    /**
     * Add mixins to form builder field options component
     *
     * @since 2.5
     *
     * @param array $mixins
     *
     * @return array
     */
    public function js_field_options_mixins( $mixins ) {
        array_push( $mixins, 'wpuf_forms_mixin_field_options' );

        return $mixins;
    }

    /**
     * Add buttons in form submit area
     *
     * @since 2.5
     *
     * @return void
     */
    public function add_form_submit_area() {
        ?>
            <input @click.prevent="" type="submit" name="submit" :value="post_form_settings.submit_text">

            <a
                v-if="post_form_settings.draft_post"
                @click.prevent=""
                href="#"
                class="btn"
                id="wpuf-post-draft"
            >
                <?php esc_html_e( 'Save Draft', 'wp-user-frontend' ); ?>
            </a>
        <?php
    }

    /**
     * Populate available wp post types
     *
     * @since 2.5
     *
     * @return void
     */
    public function set_wp_post_types() {
        $args = [ '_builtin' => true ];

        $wpuf_post_types = wpuf_get_post_types( $args );

        $ignore_taxonomies = apply_filters( 'wpuf-ignore-taxonomies', [
            'post_format',
        ] );

        foreach ( $wpuf_post_types as $post_type ) {
            $this->wp_post_types[ $post_type ] = [];

            $taxonomies = get_object_taxonomies( $post_type, 'object' );

            foreach ( $taxonomies as $tax_name => $taxonomy ) {
                if ( !in_array( $tax_name, $ignore_taxonomies ) ) {
                    $this->wp_post_types[ $post_type ][ $tax_name ] = [
                        'title'         => $taxonomy->label,
                        'hierarchical'  => $taxonomy->hierarchical,
                    ];

                    $this->wp_post_types[ $post_type ][ $tax_name ]['terms'] = get_terms( [
                        'taxonomy'   => $tax_name,
                        'hide_empty' => false,
                    ] );
                }
            }
        }
    }

    /**
     * Add data to localize_script
     *
     * @since 2.5
     *
     * @param array $data
     *
     * @return array
     */
    public function add_to_localize_script( $data ) {
        return array_merge( $data, [
            'wp_post_types'     => $this->wp_post_types,
        ] );
    }

    /**
     * Add field settings
     *
     * @since 2.5
     *
     * @param array $field_settings
     *
     * @return array
     */
    public function add_field_settings( $field_settings ) {
        if ( class_exists( 'WPUF_Field_Contract' ) ) {
            require_once WPUF_ROOT . '/includes/fields/class-field-post-title.php';
            require_once WPUF_ROOT . '/includes/fields/class-field-post-content.php';
            require_once WPUF_ROOT . '/includes/fields/class-field-post-tags.php';
            require_once WPUF_ROOT . '/includes/fields/class-field-post-excerpt.php';
            require_once WPUF_ROOT . '/includes/fields/class-field-post-taxonomy.php';
            require_once WPUF_ROOT . '/includes/fields/class-field-featured-image.php';

            $field_settings['post_title']     = new WPUF_Form_Field_Post_Title();
            $field_settings['post_content']   = new WPUF_Form_Field_Post_Content();
            $field_settings['post_excerpt']   = new WPUF_Form_Field_Post_Excerpt();
            $field_settings['featured_image'] = new WPUF_Form_Field_Featured_Image();

            $taxonomy_templates = [];

            foreach ( $this->wp_post_types as $post_type => $taxonomies ) {
                if ( !empty( $taxonomies ) ) {
                    foreach ( $taxonomies as $tax_name => $taxonomy ) {
                        if ( 'post_tag' === $tax_name ) {
                            $taxonomy_templates['post_tag'] = new WPUF_Form_Field_Post_Tags();
                        } else {
                            $taxonomy_templates[ $tax_name ] = new WPUF_Form_Field_Post_Taxonomy( $tax_name, $taxonomy );
                            // $taxonomy_templates[ 'taxonomy' ] = new WPUF_Form_Field_Post_Taxonomy($tax_name, $taxonomy);
                        }
                    }
                }
            }

            $field_settings = array_merge( $field_settings, $taxonomy_templates );
        }

        return $field_settings;
    }

    /**
     * i18n strings specially for Post Forms
     *
     * @since 2.5
     *
     * @param array $i18n
     *
     * @return array
     */
    public function i18n( $i18n ) {
        return array_merge( $i18n, [
            'any_of_three_needed' => __( 'Post Forms must have either Post Title, Post Body or Excerpt field', 'wp-user-frontend' ),
        ] );
    }
}