<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Event_comment_model extends CI_Model {


    public function __construct() {
        parent::__construct();
        $this->db->query("SET @@group_concat_max_len =30000");
    }

    public function save_comment($comment) {
        $data = array(
            'name' => $comment['name'],
            'rate' => isset($comment['rate'])?(int)$comment['rate']:0,
            'date' => $comment['date'],
            'comment' => $comment['comment'],
            'event_id' => $comment['event_id']
        );
        $this->db->insert('event_comment', $data);
    }
    public function get_comments_by_event_id($event_id) {
        $this->db->select('*');
        $this->db->where('event_id', $event_id);
        $this->db->where('status', 1);
        return $this->db->get('event_comment')->result();
    }

    public function get_formatted_comments_by_event_id($event_id) {
        $this->db->select('name, rate, DATE_FORMAT(date, "%e %M %Y") as date, comment');
        $this->db->where('event_id', $event_id);
        $this->db->where('status', 1);
        $comments = $this->db->get('event_comment')->result();
        $commentCount = $this->count_comments_with_rate($event_id);
        $rate = $this->get_comment_rate_average($event_id);
        return array(
            'comments' =>$comments,
            'rate_avg' => $commentCount > 0 ? ($rate/$commentCount).'/10': 'n/a'
        );
    }

    private function count_comments_with_rate($event_id) {
        $this->db->select('*');
        $this->db->where('event_id', $event_id);
        $this->db->where('status', 1);
        $this->db->where('rate >', 0);
        return $this->db->get('event_comment')->num_rows();
    }

    private function get_comment_rate_average($event_id) {
        $this->db->select_sum('rate');
        $this->db->from('event_comment'); 
        $this->db->where('event_id', $event_id);
        $this->db->where('status', 1);      
        $this->db->count_all();
        $query=$this->db->get();
        if(!empty($query->row()->rate))
            return $query->row()->rate;
        else
            return 0;
    }
    public function update_comment($comment_id, $comment) {
        $data = array(
            'name' => $comment['name'],
            'rate' => isset($comment['rate'])?(int)$comment['rate']:0,
            'date' => $comment['date'],
            'comment' => $comment['comment'],
        );
        $this->db->where('id', $comment_id);
        $this->db->update('event_comment', $data);
    }
    public function delete_comment($id) {
        $data = array(
            'status' => 0
        );
        $this->db->where('id', $id);
        $this->db->update('event_comment', $data);
    }
}