<?php
namespace Bookly\Backend\Modules\Settings;

use Bookly\Lib;

/**
 * Class Ajax
 * @package Bookly\Backend\Modules\Settings
 */
class Ajax extends Page
{
    /**
     * Ajax request for Holidays calendar
     */
    public static function settingsHoliday()
    {
        $interval = self::parameter( 'range', array() );
        $range    = new Lib\Slots\Range( Lib\Slots\DatePoint::fromStr( $interval[0] ), Lib\Slots\DatePoint::fromStr( $interval[1] )->modify( 1 ) );
        if ( self::parameter( 'holiday' ) == 'true' ) {
            $repeat    = (int) ( self::parameter( 'repeat' ) == 'true' );
            $employees = Lib\Entities\Staff::query()->whereNot( 'visibility', 'archive' )->fetchArray();
            $holidays  = Lib\Entities\Holiday::query()
                ->whereBetween( 'date', $range->start()->value()->format( 'Y-m-d' ), $range->end()->value()->format( 'Y-m-d' ) )
                ->where( 'staff_id', null )
                ->indexBy( 'date' )
                ->find();
            $staff_holidays = Lib\Entities\Holiday::query( 'h' )
                ->select( 'CONCAT(h.staff_id, \'-\', h.date) AS s_d, h.*' )
                ->whereBetween( 'date', $interval[0], $interval[1] )
                ->whereNot( 'staff_id', null )
                ->indexBy( 's_d' )
                ->find();

            foreach ( $range->split( DAY_IN_SECONDS ) as $r ) {
                $day = $r->start()->value()->format( 'Y-m-d' );
                if ( array_key_exists( $day, $holidays ) ) {
                    $holiday = $holidays[ $day ];
                } else {
                    $holiday = new Lib\Entities\Holiday();
                }
                $holiday
                    ->setDate( $day )
                    ->setRepeatEvent( $repeat )
                    ->save();
                foreach ( $employees as $employee ) {
                    $key = $employee['id'] . '-' . $day;
                    if ( array_key_exists( $key, $staff_holidays ) ) {
                        $staff_holiday = $staff_holidays[ $key ];
                    } else {
                        $staff_holiday = new Lib\Entities\Holiday();
                    }
                    $staff_holiday
                        ->setDate( $day )
                        ->setRepeatEvent( $repeat )
                        ->setStaffId( $employee['id'] )
                        ->setParent( $holiday )
                        ->save();
                }
            }
        } else {
            $ids = Lib\Entities\Holiday::query( 'h' )
                ->whereRaw( 'CONVERT(DATE_FORMAT(h.date, \'1%%m%%d\'),UNSIGNED INTEGER) BETWEEN %d AND %d', array( $range->start()->value()->format( '1md' ), $range->end()->value()->format( '1md' ) ) )
                ->where( 'staff_id', null )
                ->fetchCol( 'id' );
            Lib\Entities\Holiday::query()
                ->delete()
                ->whereIn( 'id', $ids )
                ->whereIn( 'parent_id', $ids, 'OR' )
                ->execute();
        }

        wp_send_json_success( self::_getHolidays() );
    }

    /**
     * Get logs.
     */
    public static function getLogs()
    {
        global $wpdb;

        $filter  = self::parameter( 'filter' );
        $columns = self::parameter( 'columns' );
        $order   = self::parameter( 'order', array() );

        $query = Lib\Entities\Log::query();

        // Filters.
        list ( $start, $end ) = explode( ' - ', $filter['created_at'], 2 );
        $end = date( 'Y-m-d', strtotime( '+1 day', strtotime( $end ) ) );

        $query->whereBetween( 'created_at', $start, $end );
        if ( isset( $filter['search'] ) && $filter['search'] !== '' ) {
            $query->whereRaw( 'target LIKE "%%%s%" OR details LIKE "%%%s%" OR ref LIKE "%%%s%" OR comment LIKE "%%%s%" OR author LIKE "%%%s%"', array_fill( 0, 5, $wpdb->esc_like( $filter['search'] ) ) );
        }
        if ( isset( $filter['target'] ) && $filter['target'] !== '' ) {
            $query->where( 'target_id', $filter['target'] );
        }
        if ( isset( $filter['action'] ) && $filter['action'] && count( $filter['action'] ) < 3 ) {
            $query->whereIn( 'action', $filter['action'] );
        }

        $filtered = $query->count();

        if ( self::parameter( 'length' ) ) {
            $query->limit( self::parameter( 'length' ) )->offset( self::parameter( 'start' ) );
        }

        foreach ( $order as $sort_by ) {
            $query->sortBy( str_replace( '.', '_', $columns[ $sort_by['column'] ]['data'] ) )
                ->order( isset( $sort_by['dir'] ) && $sort_by['dir'] == 'desc' ? Lib\Query::ORDER_DESCENDING : Lib\Query::ORDER_ASCENDING );
        }

        $logs = $query->fetchArray();

        wp_send_json( array(
            'draw'            => ( int ) self::parameter( 'draw' ),
            'recordsTotal'    => count( $logs ),
            'recordsFiltered' => $filtered,
            'data'            => $logs,
        ) );
    }

    /**
     * Delete all logs
     */
    public static function deleteLogs()
    {
        Lib\Entities\Log::query()
            ->delete()
            ->execute();

        wp_send_json_success();
    }
}