<?php
if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly
}
require_once dirname(__DIR__) . '/PostmanLogFields.php';

/**
 * See http://wpengineer.com/2426/wp_list_table-a-step-by-step-guide/
 */
if ( ! class_exists( 'WP_List_Table' ) ) {
	require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' );
}
class PostmanEmailLogView extends WP_List_Table {
	private $logger;

	/**
	 * ************************************************************************
	 * REQUIRED.
	 * Set up a constructor that references the parent constructor. We
	 * use the parent reference to set some default configs.
	 * *************************************************************************
	 */
	function __construct() {
		$this->logger = new PostmanLogger( get_class( $this ) );

		// Set parent defaults
		parent::__construct( array(
				'singular' => 'email_log_entry', // singular name of the listed records
				'plural' => 'email_log_entries', // plural name of the listed records
				'ajax' => false,
		) ); // does this table support ajax?
	}

	/**
	 * ************************************************************************
	 * Recommended.
	 * This method is called when the parent class can't find a method
	 * specifically build for a given column. Generally, it's recommended to include
	 * one method for each column you want to render, keeping your package class
	 * neat and organized. For example, if the class needs to process a column
	 * named 'title', it would first see if a method named $this->column_title()
	 * exists - if it does, that method will be used. If it doesn't, this one will
	 * be used. Generally, you should try to use custom column methods as much as
	 * possible.
	 *
	 * Since we have defined a column_title() method later on, this method doesn't
	 * need to concern itself with any column with a name of 'title'. Instead, it
	 * needs to handle everything else.
	 *
	 * For more detailed insight into how columns are handled, take a look at
	 * WP_List_Table::single_row_columns()
	 *
	 * @param array $item
	 *        	A singular item (one full row's worth of data)
	 * @param array $column_name
	 *        	The name/slug of the column to be processed
	 * @return string Text or HTML to be placed inside the column <td>
	 *         ************************************************************************
	 */
	function column_default( $item, $column_name ) {
		switch ( $column_name ) {
			case 'sent_to' :
			case 'solution' :
			case 'date' :
			case 'status' :
				return $item [ $column_name ];
			default :
				return print_r( $item, true ); // Show the whole array for troubleshooting purposes
		}
	}

	/**
	 * ************************************************************************
	 * Recommended.
	 * This is a custom column method and is responsible for what
	 * is rendered in any column with a name/slug of 'title'. Every time the class
	 * needs to render a column, it first looks for a method named
	 * column_{$column_title} - if it exists, that method is run. If it doesn't
	 * exist, column_default() is called instead.
	 *
	 * This example also illustrates how to implement rollover actions. Actions
	 * should be an associative array formatted as 'slug'=>'link html' - and you
	 * will need to generate the URLs yourself. You could even ensure the links
	 *
	 * @see WP_List_Table::::single_row_columns()
	 * @param array $item
	 *        	A singular item (one full row's worth of data)
	 * @return string Text to be placed inside the column <td> (movie title only)
	 *         ************************************************************************
	 */
	function column_title( $item ) {

		// Build row actions
		$iframeUri = 'admin-post.php?page=postman_email_log&action=%s&email=%s&TB_iframe=true&width=700&height=550';
		$deleteUrl = wp_nonce_url( admin_url( sprintf( 'admin-post.php?page=postman_email_log&action=%s&email=%s', 'delete', $item ['ID'] ) ), 'delete_email_log_item_' . $item ['ID'] );
		$viewUrl = admin_url( sprintf( $iframeUri, 'view', $item ['ID'] ) );
		$transcriptUrl = admin_url( sprintf( $iframeUri, 'transcript', $item ['ID'] ) );
		$resendUrl = admin_url( sprintf( $iframeUri, 'resend', $item ['ID'] ) );

		$meta_values = PostmanLogFields::get_instance()->get( $item ['ID'] );

		$actions = array(
				'delete' => sprintf( '<a href="%s">%s</a>', $deleteUrl, _x( 'Delete', 'Delete an item from the email log', 'post-smtp' ) ),
				'view' => sprintf( '<a href="%s" class="thickbox">%s</a>', $viewUrl, _x( 'View', 'View an item from the email log', 'post-smtp' ) ),
		);

		if ( ! empty( $meta_values ['session_transcript'] [0] ) ) {
			$actions ['transcript'] = sprintf( '<a href="%1$s" class="thickbox">%2$s</a>', $transcriptUrl, __( 'Session Transcript', 'post-smtp' ) );
		} else {
			$actions ['transcript'] = sprintf( '%2$s', $transcriptUrl, __( 'Session Transcript', 'post-smtp' ) );
		}
		if ( ! (empty( $meta_values ['original_to'] [0] ) && empty( $meta_values ['originalHeaders'] [0] )) ) {
			// $actions ['resend'] = sprintf ( '<a href="%s">%s</a>', $resendUrl, __ ( 'Resend', 'post-smtp' ) );
			$emails = $meta_values ['original_to'] [0];
			$to = !is_array( $emails ) ? explode( ',', $emails ) : $emails;
			$to = array_map( 'sanitize_email', $to );
			$to = implode( ',', $to );

            $actions ['resend'] = sprintf( '<span id="%3$s"><a class="postman-open-resend" href="#">%2$s</a></span><div style="display:none;"><input type="hidden" name="security" value="%6$s"><input type="text" name="mail_to" class="regular-text ltr" data-id="%1$s" value="%4$s"><button class="postman-resend button button-primary">%2$s</button><i style="color: black;">%5$s</i></div>', $item ['ID'], __( 'Resend', 'post-smtp' ), 'resend-' . $item ['ID'], esc_attr( $to ), __( 'comma-separated for multiple emails', 'post-smtp' ), wp_create_nonce( 'resend' ) );
		} else {
			$actions ['resend'] = sprintf( '%2$s', $resendUrl, __( 'Resend', 'post-smtp' ) );
		}

		// Return the title contents
		return sprintf( '%1$s %3$s',
			/*$1%s*/ $item ['title'],
			/*$2%s*/ $item ['ID'],
		/*$3%s*/ $this->row_actions( $actions ) );
	}

	/**
	 * ************************************************************************
	 * REQUIRED if displaying checkboxes or using bulk actions! The 'cb' column
	 * is given special treatment when columns are processed.
	 * It ALWAYS needs to
	 * have it's own method.
	 *
	 * @see WP_List_Table::::single_row_columns()
	 * @param array $item
	 *        	A singular item (one full row's worth of data)
	 * @return string Text to be placed inside the column <td> (movie title only)
	 *         ************************************************************************
	 */
	function column_cb( $item ) {
		return sprintf( '<input type="checkbox" name="%1$s[]" value="%2$s" />',
			/*$1%s*/ $this->_args ['singular'], // Let's simply repurpose the table's singular label ("movie")
			/* $2%s */
		$item ['ID'] ); // The value of the checkbox should be the record's id
	}

	/**
	 * ************************************************************************
	 * REQUIRED! This method dictates the table's columns and titles.
	 * This should
	 * return an array where the key is the column slug (and class) and the value
	 * is the column's title text. If you need a checkbox for bulk actions, refer
	 * to the $columns array below.
	 *
	 * The 'cb' column is treated differently than the rest. If including a checkbox
	 * column in your table you must create a column_cb() method. If you don't need
	 * bulk actions or checkboxes, simply leave the 'cb' entry out of your array.
	 *
	 * @see WP_List_Table::::single_row_columns()
	 * @return array An associative array containing column information: 'slugs'=>'Visible Titles'
	 *         ************************************************************************
	 */
	function get_columns() {
		$columns = array(
				'cb' => '<input type="checkbox" />', // Render a checkbox instead of text
				'title' => _x( 'Subject', 'What is the subject of this message?', 'post-smtp' ),
				'sent_to' => __( 'Sent To', 'post-smtp' ),
				'status' => __( 'Status', 'post-smtp' ),
				'solution' => __( 'Solution', 'post-smtp' ),
				'date' => _x( 'Delivery Time', 'When was this email sent?', 'post-smtp' ),
		);
		return $columns;
	}

	/**
	 * ************************************************************************
	 * Optional.
	 * If you want one or more columns to be sortable (ASC/DESC toggle),
	 * you will need to register it here. This should return an array where the
	 * key is the column that needs to be sortable, and the value is db column to
	 * sort by. Often, the key and value will be the same, but this is not always
	 * the case (as the value is a column name from the database, not the list table).
	 *
	 * This method merely defines which columns should be sortable and makes them
	 * clickable - it does not handle the actual sorting. You still need to detect
	 * the ORDERBY and ORDER querystring variables within prepare_items() and sort
	 * your data accordingly (usually by modifying your query).
	 *
	 * @return array An associative array containing all the columns that should be sortable: 'slugs'=>array('data_values',bool)
	 *         ************************************************************************
	 */
	function get_sortable_columns() {
		return array();
		$sortable_columns = array(
				'title' => array(
						'title',
						false,
				), // true means it's already sorted
				'status' => array(
						'status',
						false,
				),
				'date' => array(
						'date',
						false,
				),
		);
		return $sortable_columns;
	}

	/**
	 * ************************************************************************
	 * Optional.
	 * If you need to include bulk actions in your list table, this is
	 * the place to define them. Bulk actions are an associative array in the format
	 * 'slug'=>'Visible Title'
	 *
	 * If this method returns an empty value, no bulk action will be rendered. If
	 * you specify any bulk actions, the bulk actions box will be rendered with
	 * the table automatically on display().
	 *
	 * Also note that list tables are not automatically wrapped in <form> elements,
	 * so you will need to create those manually in order for bulk actions to function.
	 *
	 * @return array An associative array containing all the bulk actions: 'slugs'=>'Visible Titles'
	 *         ************************************************************************
	 */
	function get_bulk_actions() {
		$actions = array(
				'bulk_delete' => _x( 'Delete', 'Delete an item from the email log', 'post-smtp' ),
		);
		return $actions;
	}

	/**
	 * ************************************************************************
	 * Optional.
	 * You can handle your bulk actions anywhere or anyhow you prefer.
	 * For this example package, we will handle it in the class to keep things
	 * clean and organized.
	 *
	 * @see $this->prepare_items() ************************************************************************
	 */
	function process_bulk_action() {
	}

	/**
	 * ************************************************************************
	 * REQUIRED! This is where you prepare your data for display.
	 * This method will
	 * usually be used to query the database, sort and filter the data, and generally
	 * get it ready to be displayed. At a minimum, we should set $this->items and
	 * $this->set_pagination_args(), although the following properties and methods
	 * are frequently interacted with here...
	 *
	 * @global WPDB $wpdb
	 * @uses $this->_column_headers
	 * @uses $this->items
	 * @uses $this->get_columns()
	 * @uses $this->get_sortable_columns()
	 * @uses $this->get_pagenum()
	 * @uses $this->set_pagination_args()
	 *       ************************************************************************
	 */
	function prepare_items() {

        if ( ! current_user_can( Postman::MANAGE_POSTMAN_CAPABILITY_LOGS ) ) {
	        wp_die( sprintf( 'You need to add to this user the %s capability. You can try disable and enable the plugin or you can do it with a plugin like `user role editor`.', Postman::MANAGE_POSTMAN_CAPABILITY_LOGS ) );
        }

	    /**
		 * First, lets decide how many records per page to show
		 */
		$per_page = isset( $_GET['postman_page_records'] ) ? absint( $_GET['postman_page_records'] ) : 10;

		/**
		 * REQUIRED.
		 * Now we need to define our column headers. This includes a complete
		 * array of columns to be displayed (slugs & titles), a list of columns
		 * to keep hidden, and a list of columns that are sortable. Each of these
		 * can be defined in another method (as we've done here) before being
		 * used to build the value for our _column_headers property.
		 */
		$columns = $this->get_columns();
		$hidden = array();
		$sortable = $this->get_sortable_columns();

		/**
		 * REQUIRED.
		 * Finally, we build an array to be used by the class for column
		 * headers. The $this->_column_headers property takes an array which contains
		 * 3 other arrays. One for all columns, one for hidden columns, and one
		 * for sortable columns.
		 */
		$this->_column_headers = array(
				$columns,
				$hidden,
				$sortable,
		);

		/**
		 * Optional.
		 * You can handle your bulk actions however you see fit. In this
		 * case, we'll handle them within our package just to keep things clean.
		 */
		$this->process_bulk_action();

		/**
		 * Instead of querying a database, we're going to fetch the example data
		 * property we created for use in this plugin.
		 * This makes this example
		 * package slightly different than one you might build on your own. In
		 * this example, we'll be using array manipulation to sort and paginate
		 * our data. In a real-world implementation, you will probably want to
		 * use sort and pagination data to build a custom query instead, as you'll
		 * be able to use your precisely-queried data immediately.
		 */
		$data = array();

		$args = array(
				'posts_per_page' => -1,
				'orderby' => 'date',
				'order' => 'DESC',
				'post_type' => PostmanEmailLogPostType::POSTMAN_CUSTOM_POST_TYPE_SLUG,
				'post_status' => 'private',
				'suppress_filters' => true,
		);

		if ( isset( $_GET['from_date'] ) && ! empty( $_GET['from_date'] ) ) {
			$from_date = sanitize_text_field( $_GET['from_date'] );

		    $args['date_query']['after'] = $from_date;
		    $args['date_query']['column']  = 'post_date';
		    $args['date_query']['inclusive'] = false;
		}

		if ( isset( $_GET['to_date'] ) && ! empty( $_GET['to_date'] ) ) {
			$to_date = sanitize_text_field( $_GET['to_date'] );

		    $args['date_query']['before'] = $to_date;
			$args['date_query']['column']  = 'post_date';
		    $args['date_query']['inclusive'] = true;
		}

		if ( ! empty( $_GET['search'] ) ) {

			if ( isset( $args['date_query'] ) ) {
				unset( $args['date_query'] ); }

			$args['s'] = sanitize_text_field( $_GET['search'] );
		}

		if ( isset( $_GET['postman_trash_all'] ) ) {
			$args['posts_per_page'] = -1;
		}
		$posts = new WP_query( $args );

		$date_format = get_option( 'date_format' );
		$time_format = get_option( 'time_format' );

		foreach ( $posts->posts as $post ) {
			$date = $post->post_date;
			$humanTime = human_time_diff( strtotime( $post->post_date_gmt ) );
			// if this PHP system support humanTime, than use it
			if ( ! empty( $humanTime ) ) {
				/* Translators: where %s indicates the relative time from now */
				$date = sprintf( _x( '%s ago', 'A relative time as in "five days ago"', 'post-smtp' ), $humanTime );
			}
			$meta_values = PostmanLogFields::get_instance()->get( $post->ID );
			$sent_to = array_map( 'esc_html', explode( ',' , $meta_values ['to_header'] [0] ) );
			$solution_meta =  $meta_values ['solution'] [0];

			if ( empty( $solution_meta ) && empty( $post->post_excerpt ) ) {
				$solution = 'No need - Mail sent';
			} else {
				$solution = $solution_meta;
			}

			$flattenedPost = array(
					// the post title must be escaped as they are displayed in the HTML output
					'sent_to' => implode( ', ', $sent_to ),
					'title' => esc_html( $post->post_title ),
					'solution' => $solution,
					// the post status must be escaped as they are displayed in the HTML output
					'status' => ($post->post_excerpt != null ? esc_html( $post->post_excerpt ) : __( 'Sent', 'post-smtp' )),
					'date' => date( "$date_format $time_format", strtotime( $post->post_date ) ),
					'ID' => $post->ID,
			);
			array_push( $data, $flattenedPost );
		}
		
		/**
		 * *********************************************************************
		 * ---------------------------------------------------------------------
		 * vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
		 *
		 * In a real-world situation, this is where you would place your query.
		 *
		 * For information on making queries in WordPress, see this Codex entry:
		 * http://codex.wordpress.org/Class_Reference/wpdb
		 *
		 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
		 * ---------------------------------------------------------------------
		 * ********************************************************************
		 */

		/**
		 * REQUIRED for pagination.
		 * Let's figure out what page the user is currently
		 * looking at. We'll need this later, so you should always include it in
		 * your own package classes.
		 */
		$current_page = $this->get_pagenum();

		/**
		 * REQUIRED for pagination.
		 * Let's check how many items are in our data array.
		 * In real-world use, this would be the total number of items in your database,
		 * without filtering. We'll need this later, so you should always include it
		 * in your own package classes.
		 */
		$total_items = count( $data );

		/**
		 * The WP_List_Table class does not handle pagination for us, so we need
		 * to ensure that the data is trimmed to only the current page.
		 * We can use
		 * array_slice() to
		 */
		$data = array_slice( $data, (($current_page - 1) * $per_page), $per_page );

		/**
		 * REQUIRED.
		 * Now we can add our *sorted* data to the items property, where
		 * it can be used by the rest of the class.
		 */
		$this->items = $data;

		/**
		 * REQUIRED.
		 * We also have to register our pagination options & calculations.
		 */
		$this->set_pagination_args( array(
				'total_items' => $total_items, // WE have to calculate the total number of items
				'per_page' => $per_page, // WE have to determine how many items to show on a page
				'total_pages' => ceil( $total_items / $per_page ),
		) ); // WE have to calculate the total number of pages
	}
}

