<?php

class Room_m extends CI_Model {

    function __construct() {
        parent::__construct();
        $this->load->library('mydate');
    }

    function get_all($txtsearch, $offset, $per_page = 20, $url = '/room/ajax_get_grid') {
        if ($txtsearch != '') {
            $this->db->like('name', $txtsearch);
        }
        $total = $this->db->get('tbroom')->num_rows();

        if ($txtsearch != '') {
            $this->db->like('name', $txtsearch);
        }
        $this->db->limit($per_page, $offset);
        $this->db->order_by('name', 'asc');
        $query = $this->db->get('tbroom')->result_array();

        $this->load->library('pagination');
        $data['pagination'] = $this->pagination->pagin($total, $url, $per_page);
        $data['query'] = $query;
        return $data;
    }
    
   function get_roomname($room_id){
       $room_name = '';
       $this->db->where('id',$room_id);
       $row = $this->db->get('tbroom')->row_array();
       if(isset($row['id'])){
           $room_name = $row['name'];
       }
       
       return $room_name;
   }

    /*
     * ตรวจสอบห้องที่ต้องการว่างหรือไม่
     * return true = ว่าง, false = ไม่ว่าง
     */

    function room_busy($room_id, $rdate, $start_time, $end_time) {
        $this->load->library('mydate');

        $this->db->where('id', $room_id);
        $room = $this->db->get('tbroom')->row_array();
        $room_name = $room['name'];

        $this->db->where('room_id', $room_id);
        $this->db->where('rdate', $rdate);
        $this->db->where('status <> ', '2');
        $this->db->where('status <> ', '3');
        $result = $this->db->get('tbreserv')->result_array();

        $ret = $this->room_busy_process($result, $rdate, $start_time, $end_time, $room_name);
        $msg = $ret['msg'];
        $busy = $ret['busy'];

        //ตรวจสอบที่ตาราง tbbooking ด้วย
        if ($busy) {
            $sql = "SELECT tbbooking.room_id, tbbooking.rdate, tbbooking.start_time, tbbooking.end_time,";
            $sql.= " tbreserv.status, tbreserv.member_id FROM tbreserv Inner Join tbbooking ON tbbooking.doc_id = tbreserv.id";
            $sql.= " Where tbbooking.room_id='$room_id' And tbbooking.rdate='$rdate' And tbreserv.status<>'2' And tbreserv.status<>'3'";
            $result = $this->db->query($sql)->result_array();

            $ret = $this->room_busy_process($result, $rdate, $start_time, $end_time, $room_name);
            $msg = $ret['msg'];
            $busy = $ret['busy'];
        }

        if ($busy) {
            if ($this->db->table_exists('tmp_booking')) {
                $this->db->where('room_id', $room_id);
                $this->db->where('rdate', $rdate);
                $result = $this->db->get('tmp_booking')->result_array();

                $ret = $this->room_busy_process($result, $rdate, $start_time, $end_time, $room_name);
                $msg = $ret['msg'];
                $busy = $ret['busy'];
            }
        }

        $data = array(
            'msg' => $msg,
            'busy' => $busy
        );
        return $data;
    }

    function room_busy_process($result, $rdate, $start_time, $end_time, $room_name) {
        $msg = 'ห้องว่างสามารถจองได้';
        $busy = true;

        foreach ($result as $r) {
            $member = $this->get_member($r['member_id']);
            $member_txt = " <b>ผู้จอง:</b> ".$member['name']." ติดต่อ ".$member['mobile']." ,".$member['tel'];
            
            $db_start_time = $r['start_time'];
            $db_end_time = $r['end_time'];

            if ($start_time >= $db_start_time) {
                if ($start_time <= $db_end_time) {
                    if ($r['status'] == '0') {
                        $msg = "<b>$room_name</b> ณ .วันที่ " . $this->mydate->dateToText($rdate) . " ในช่วงเวลา " . $r['start_time'] . " - " . $r['end_time'] . " อยู่ระหว่างการรออนุมัติ ไม่สามารถจองได้ในขณะนี้ $member_txt <br/>";
                        $busy = false;
                    } else if ($r['status'] == '1') {
                        $msg = "<b>$room_name</b> ไม่ว่าง ณ .วันที่ " . $this->mydate->dateToText($rdate) . " ในช่วงเวลา " . $r['start_time'] . " - " . $r['end_time'] . " $member_txt <br/>";
                        $busy = false;
                    }
                }
            } else if ($start_time <= $db_start_time && $end_time >= $db_start_time) {
                if ($end_time <= $db_end_time) {
                    if ($r['status'] == '0') {
                        $msg = "<b>$room_name</b> ณ .วันที่ " . $this->mydate->dateToText($rdate) . " ในช่วงเวลา " . $r['start_time'] . " - " . $r['end_time'] . " อยู่ระหว่างการรออนุมัติ ไม่สามารถจองได้ในขณะนี้ $member_txt <br/>";
                        $busy = false;
                    } else if ($r['status'] == '1') {
                        $msg = "<b>$room_name</b> ไม่ว่าง ณ .วันที่ " . $this->mydate->dateToText($rdate) . " ในช่วงเวลา " . $r['start_time'] . " - " . $r['end_time'] . " $member_txt <br/>";
                        $busy = false;
                    }
                }
            }

            if ($start_time <= $db_start_time && $end_time >= $db_end_time) {
                if ($r['status'] == '0') {
                    $msg = "<b>$room_name</b> ณ .วันที่ " . $this->mydate->dateToText($rdate) . " ในช่วงเวลา " . $r['start_time'] . " - " . $r['end_time'] . " อยู่ระหว่างการรออนุมัติ ไม่สามารถจองได้ในขณะนี้ $member_txt <br/>";
                    $busy = false;
                } else if ($r['status'] == '1') {
                    $msg = "<b>$room_name</b> ไม่ว่าง ณ .วันที่ " . $this->mydate->dateToText($rdate) . " ในช่วงเวลา " . $r['start_time'] . " - " . $r['end_time'] . " $member_txt <br/>";
                    $busy = false;
                }
            }
        }

        $data = array(
            'msg' => $msg,
            'busy' => $busy
        );
        return $data;
    }

    function get_member($member_id) {
        $this->db->where('id', $member_id);
        $row = $this->db->get('tbmember')->row_array();

        $data = array();
        
        if (isset($row['id'])) {
            $data = array(
                'name' => $row['name'],
                'mobile' => $row['mobile'],
                'tel' => $row['tel']
            );
        }
        
        return $data;
    }

    /*
     * ดึงรายการห้องที่ว่างทั้งหมดที่สามารถจองได้ ในช่วงวัน เวลาที่ต้องการ
     * แต่จะยังไม่เช็คสถานะการกำหนดการจองล่วงหน้าว่าต้องจองก่อนกี่นาที
     */

    function get_all_roombusy($rdate, $start_time, $end_time) {
        $this->db->where('status', '0');
        $query = $this->db->get('tbroom')->result_array();

        $result = array();
        foreach ($query as $r) {
            $ret = $this->room_busy($r['id'], $rdate, $start_time, $end_time);
            $hours_dif = $this->mydate->dateTimeDiff(date("Y-m-d H:i"), "$rdate $start_time");

            $ok = true;
            $ok_txt = '';
            if ($r['pre_hours'] > 0) {
                if ($hours_dif < $r['pre_hours']) {
                    $ok = false;
                    $ok_txt = 'จองล่วงหน้า ' . $r['pre_hours'] . " ชม.";
                }
            } else {
                if ($hours_dif < $r['pre_hours']) {
                    $ok = false;
                    $ok_txt = "จองย้อนหลังไม่ได้";
                }
            }
            if ($ret['busy']) {
                $result[] = array(
                    'id' => $r['id'],
                    'name' => $r['name'],
                    'room_size' => $r['room_size'],
                    'sit_amount' => $r['sit_amount'],
                    'pre_hours' => $r['pre_hours'],
                    'ok' => $ok,
                    'ok_txt' => $ok_txt
                );
            }
        }

        return $result;
    }

}

?>