<?php if ( ! defined( 'ABSPATH' ) ) exit;

/**
 * Class NF_Admin_Menus_Submissions
 */
final class NF_Admin_Menus_Submissions extends NF_Abstracts_Submenu
{
    /**
     * @var string
     */
    public $parent_slug = 'ninja-forms';

    /**
     * @var string
     */
    public $page_title = 'Submissions';

    /**
     * @var string
     */
    public $menu_slug = 'edit.php?post_type=nf_sub';

    /**
     * @var null
     */
    public $function = NULL;

    /**
     * Constructor
     */
    public function __construct()
    {
        parent::__construct();

        add_filter( 'manage_nf_sub_posts_columns', array( $this, 'change_columns' ) );

        add_action( 'manage_posts_custom_column', array( $this, 'custom_columns' ), 10, 2 );

        add_filter('months_dropdown_results', array( $this, 'remove_filter_show_all_dates' ), 9999 );

        add_action( 'restrict_manage_posts', array( $this, 'add_filters' ) );

        add_filter( 'parse_query', array( $this, 'table_filter' ) );

        add_filter( 'posts_clauses', array( $this, 'search' ), 20, 1 );

        add_filter( 'bulk_actions-edit-nf_sub', array( $this, 'remove_bulk_edit' ) );

        add_action( 'admin_footer-edit.php', array( $this, 'bulk_admin_footer' ) );

        add_action( 'load-edit.php', array( $this, 'export_listen' ) );

        add_action('admin_head', array( $this, 'hide_page_title_action' ) );
    }

    public function get_page_title()
    {
        return __( 'Submissions', 'ninja-forms' );
    }

    /**
     * Display
     */
    public function display()
    {
        // This section intentionally left blank.
    }

    /**
     * Change Columns
     *
     * @return array
     */
    public function change_columns()
    {
        $form_id = ( isset( $_GET['form_id'] ) ) ? $_GET['form_id'] : FALSE;

        if( ! $form_id ) return array();

        static $cols;

        if( $cols ) return $cols;

        $cols = array(
            'cb'    => '<input type="checkbox" />',
            'seq_num' => __( '#', 'ninja-forms' ),
        );

        $fields = Ninja_Forms()->form( $form_id )->get_fields();

        $hidden_field_types = apply_filters( 'ninja_forms_sub_hidden_field_types', array() );

        foreach( $fields as $field ){

            if( in_array( $field->get_setting( 'type' ), $hidden_field_types ) ) continue;

            if ( $field->get_setting( 'admin_label' ) ) {
                $cols[ 'field_' . $field->get_id() ] = $field->get_setting( 'admin_label' );
            } else {
                $cols[ 'field_' . $field->get_id() ] = $field->get_setting( 'label' );  
            }
            
        }

        $cols[ 'sub_date' ] = __( 'Date', 'ninja-forms' );

        return $cols;
    }

    /**
     * Custom Columns
     *
     * @param $column
     * @param $sub_id
     */
    public function custom_columns( $column, $sub_id )
    {
        $sub = Ninja_Forms()->form()->get_sub( $sub_id );

        switch( $column ){
            case 'seq_num':
                echo $this->custom_columns_seq_num( $sub );
                break;
            case 'sub_date':
                echo $this->custom_columns_sub_date( $sub );
                break;
            default:
                echo $this->custom_columns_field( $sub, $column );
        }
    }

    /**
     * Remove Filter: Show All Dates
     *
     * @param $months
     * @return array
     */
    public function remove_filter_show_all_dates( $months )
    {
        if( ! isset( $_GET[ 'post_type' ] ) || 'nf_sub' != $_GET[ 'post_type' ] ) return $months;

        // Returning an empty array should hide the dropdown.
        return array();
    }

    /**
     * Add Filters
     *
     * @return bool
     */
    public function add_filters()
    {
        global $typenow;

        // Bail if we aren't in our submission custom post type.
        if ( $typenow != 'nf_sub' ) return false;

        $forms = Ninja_Forms()->form()->get_forms();

        $form_options = array();
        foreach( $forms as $form ){
            $form_options[ $form->get_id() ] = $form->get_setting( 'title' );
        }
        $form_options = apply_filters( 'ninja_forms_submission_filter_form_options', $form_options );

        if( isset( $_GET[ 'form_id' ] ) ) {
            $form_selected = $_GET[ 'form_id' ];
        } else {
            $form_selected = 0;
        }

        if( isset( $_GET[ 'begin_date' ] ) ) {
            $begin_date = $_GET[ 'begin_date' ];
        } else {
            $begin_date = '';
        }

        if( isset( $_GET[ 'end_date' ] ) ) {
            $end_date = $_GET[ 'end_date' ];
        } else {
            $end_date = '';
        }

        Ninja_Forms::template( 'admin-menu-subs-filter.html.php', compact( 'form_options', 'form_selected', 'begin_date', 'end_date' ) );

        wp_enqueue_script('jquery-ui-datepicker');
        wp_enqueue_style( 'jquery-ui-datepicker', Ninja_Forms::$url .'deprecated/assets/css/jquery-ui-fresh.min.css' );
    }

    public function table_filter( $query )
    {
        global $pagenow;

        if( $pagenow != 'edit.php' || ! is_admin() || ! isset( $query->query['post_type'] ) || 'nf_sub' != $query->query['post_type'] || ! is_main_query() ) return;

        $vars = &$query->query_vars;

        $form_id = ( ! empty( $_GET['form_id'] ) ) ? $_GET['form_id'] : 0;

        $vars = $this->table_filter_by_form( $vars, $form_id );

        $vars = $this->table_filter_by_date( $vars );

        $vars = apply_filters( 'ninja_forms_sub_table_qv', $vars, $form_id );
    }

    public function search( $pieces ) {
        global $typenow;
        // filter to select search query
        if ( is_search() && is_admin() && $typenow == 'nf_sub' && isset ( $_GET['s'] ) ) {
            global $wpdb;

            $keywords = explode(' ', get_query_var('s'));
            $query = "";

            foreach ($keywords as $word) {

                $query .= " (mypm1.meta_value  LIKE '%{$word}%') OR ";
            }

            if (!empty($query)) {
                // add to where clause
                $pieces['where'] = str_replace("((({$wpdb->posts}.post_title LIKE '%", "( {$query} (({$wpdb->posts}.post_title LIKE '%", $pieces['where']);

                $pieces['join'] = $pieces['join'] . " INNER JOIN {$wpdb->postmeta} AS mypm1 ON ({$wpdb->posts}.ID = mypm1.post_id)";

            }
        }
        return ($pieces);
    }

    public function remove_bulk_edit( $actions ) {
        unset( $actions['edit'] );
        return $actions;
    }

    public function bulk_admin_footer() {
        global $post_type;

        if ( ! is_admin() )
            return false;

        if( $post_type == 'nf_sub' && isset ( $_REQUEST['post_status'] ) && $_REQUEST['post_status'] == 'all' ) {
            ?>
            <script type="text/javascript">
                jQuery(document).ready(function() {
                    jQuery('<option>').val('export').text('<?php _e('Export')?>').appendTo("select[name='action']");
                    jQuery('<option>').val('export').text('<?php _e('Export')?>').appendTo("select[name='action2']");
                    <?php
                    if ( ( isset ( $_POST['action'] ) && $_POST['action'] == 'export' ) || ( isset ( $_POST['action2'] ) && $_POST['action2'] == 'export' ) ) {
                        ?>
                    setInterval(function(){
                        jQuery( "select[name='action'" ).val( '-1' );
                        jQuery( "select[name='action2'" ).val( '-1' );
                        jQuery( '#posts-filter' ).submit();
                    },5000);
                    <?php
                }

                if ( isset ( $_REQUEST['form_id'] ) && ! empty ( $_REQUEST['form_id'] ) ) {
                    $redirect = urlencode( remove_query_arg( array( 'download_all', 'download_file' ) ) );
                    $url = admin_url( 'admin.php?page=nf-processing&action=download_all_subs&form_id=' . absint( $_REQUEST['form_id'] ) . '&redirect=' . $redirect );
                    $url = esc_url( $url );
                    ?>
                    var button = '<a href="<?php echo $url; ?>" class=<?php __( "button-secondary nf-download-all", 'ninja-forms' ) ;?> . '>' . <?php echo __( 'Download All Submissions', 'ninja-forms' ); ?></a>';
//                    jQuery( '#doaction2' ).after( button );
                    <?php
                }

                if ( isset ( $_REQUEST['download_all'] ) && $_REQUEST['download_all'] != '' ) {
                    $redirect = esc_url_raw( add_query_arg( array( 'download_file' => esc_html( $_REQUEST['download_all'] ) ) ) );
                    $redirect = remove_query_arg( array( 'download_all' ), $redirect );
                    ?>
                    document.location.href = "<?php echo $redirect; ?>";
                    <?php
                }

                ?>
                });
            </script>
            <?php
        }
    }

    public function export_listen()
    {
        // Bail if we aren't in the admin
        if (!is_admin())
            return false;

        if (!isset ($_REQUEST['form_id']) || empty ($_REQUEST['form_id'])) {
            return false;
        }

        if (isset ($_REQUEST['export_single']) && !empty($_REQUEST['export_single'])) {
            Ninja_Forms()->sub(esc_html($_REQUEST['export_single']))->export();
        }

        if ((isset ($_REQUEST['action']) && $_REQUEST['action'] == 'export') || (isset ($_REQUEST['action2']) && $_REQUEST['action2'] == 'export')) {

            $sub_ids = WPN_Helper::esc_html($_REQUEST['post']);

            Ninja_Forms()->form( $_REQUEST['form_id'] )->export_subs( $sub_ids );
        }

        if (isset ($_REQUEST['download_file']) && !empty($_REQUEST['download_file'])) {

            // Open our download all file
            $filename = esc_html($_REQUEST['download_file']);

            $upload_dir = wp_upload_dir();

            $file_path = trailingslashit($upload_dir['path']) . $filename . '.csv';

            if (file_exists($file_path)) {
                $myfile = file_get_contents($file_path);
            } else {
                $redirect = esc_url_raw(remove_query_arg(array('download_file', 'download_all')));
                wp_redirect($redirect);
                die();
            }

            unlink($file_path);

            $form_name = Ninja_Forms()->form(absint($_REQUEST['form_id']))->get()->get_setting('title');
            $form_name = sanitize_title($form_name);

            $today = date('Y-m-d', current_time('timestamp'));

            $filename = apply_filters('ninja_forms_download_all_filename', $form_name . '-all-subs-' . $today);

            header('Content-type: application/csv');
            header('Content-Disposition: attachment; filename="' . $filename . '.csv"');
            header('Pragma: no-cache');
            header('Expires: 0');

            echo $myfile;

            die();
        }
    }

    public function hide_page_title_action() {

        if(
            ( isset( $_GET[ 'post_type' ] ) && 'nf_sub' == $_GET[ 'post_type'] ) ||
            'nf_sub' == get_post_type()
        ){
            echo '<style type="text/css">.page-title-action{display: none;}</style>';
        }
    }

    /*
     * PRIVATE METHODS
     */

    /**
     * Custom Columns: ID
     *
     * @param $sub
     * @return mixed
     */
    private function custom_columns_seq_num( $sub )
    {
        return $sub->get_seq_num();
    }

    /**
     * Custom Columns: Submission Date
     *
     * @param $sub
     * @return mixed
     */
    private function custom_columns_sub_date( $sub )
    {
        return $sub->get_sub_date();
    }

    /**
     * Custom Columns: Field
     *
     * @param $sub
     * @param $column
     * @return bool
     */
    private function custom_columns_field( $sub, $column )
    {
        if( FALSE === strpos( $column, 'field_' ) ) return FALSE;

        $field_id = str_replace( 'field_', '', $column );

        return $sub->get_field_value( $field_id );
    }

    private function table_filter_by_form( $vars, $form_id )
    {
        if ( ! isset ( $vars['meta_query'] ) ) {
            $vars['meta_query'] = array(
                array(
                    'key' => '_form_id',
                    'value' => $form_id,
                    'compare' => '=',
                ),
            );
        }

        return $vars;
    }

    private function table_filter_by_date( $vars )
    {
        if( empty( $_GET[ 'begin_date' ] ) || empty( $_GET[ 'end_date' ] ) ) return $vars;

        $begin_date = $_GET[ 'begin_date' ];
        $end_date = $_GET[ 'end_date' ];

        if( $begin_date > $end_date ){
            $temp_date = $begin_date;
            $begin_date = $end_date;
            $end_date = $temp_date;
        }

        if ( ! isset ( $vars['date_query'] ) ) {

            $vars['date_query'] = array(
                'after' => $begin_date,
                'before' => $end_date
            );
        }

        return $vars;
    }

    public function get_capability()
    {
        return apply_filters( 'ninja_forms_admin_submissions_capabilities', $this->capability );
    }

}
