<?php
/**
 * Initialise WPLMS CHAT
 *
 * @author 		VibeThemes
 * @category 	Init
 * @package 	wplms-chat/Includes
 * @version     1.0
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}


class WPLMS_Chat_Init{


	public static $instance;

    public static function init(){

        if ( is_null( self::$instance ) )
            self::$instance = new WPLMS_Chat_Init();
        return self::$instance;
    }


    function __construct(){
        add_action('wp_ajax_get_admin_token_once',array($this,'get_admin_token_once'));
    	add_action('wp_ajax_get_admin_token',array($this,'get_admin_token'));
        add_action('wp_ajax_get_instructor_token',array($this,'get_instructor_token'));
        
        add_filter('wplms_chat_after_data',array($this,'loggedin_user'));

        add_action('bp_setup_nav',array($this,'add_chat_in_profile_menu'),100);

        add_shortcode('wplms_chat',array($this,'wplms_chat_shortcode'));
        add_action('init',array($this,'show_chat_globally'));
        

    }

    
    function get_admin_token_once(){
        
        if(current_user_can('manage_options')){
            $chat = WPLMS_Live::init();
            $token = $chat->get_firebase_admin_token();
            echo $token;

            
            if(empty($this->settings)){
                $this->settings = get_option(WPLMS_CHAT_OPTION);     
            }
            if(!empty($this->settings['firebase_database_url'])){
                $response = wp_safe_remote_post($this->settings['firebase_database_url'].'/.settings/rules.json?access_token='.$token,array(
                    'method'=>'PUT',
                    'timeout'=>15,
                    'body'=>json_encode(array(
                        'rules'=>array(
                            'read'=>'auth != null',
                            'write'=>'auth != null',
                            'notifications'=>array(
                            ".indexOn"=>array("status")
                            ),
                        ),
                    ))
                ));
            }
            update_option('wplms_chat_structure',WPLMS_CHAT_STRUCTURE);
        }
        die();
    }

    function get_admin_token(){
    	$chat = WPLMS_Live::init();
        if(current_user_can('manage_options')){
            echo $chat->get_firebase_admin_token(); 
            update_option('wplms_chat_structure',WPLMS_CHAT_STRUCTURE);
        }
    	die();
    }
    function get_instructor_token(){
        $chat = WPLMS_Live::init();
        if(current_user_can('edit_posts')){
            echo $chat->get_firebase_instructor_token();
        }
        die();    
    }
    
    function loggedin_user($args){
        if(!is_user_logged_in())
            return $args;

        $user_id = get_current_user_id();
        $avatar = bp_course_get_instructor_avatar_url($user_id);

        if(empty($avatar) && function_exists('vibe_get_option')){
                $avatar = vibe_get_option('default_avatar');
        }
        
        if(empty($avatar)){
            $avatar = plugins_url(__FILE__,'../assets/images/avatar.jpg');
        }

        $id = get_current_user_id();
        $args['user'] = apply_filters('wplms_chat_user',array(
                'id'=> $id,
                'name'=> bp_core_get_user_displayname($id),
                'image'=> $avatar,
                'status'=>1, // 1 online 0 offline
                'type'=>(current_user_can('manage_options')?'administrator':(current_user_can('edit_posts')?'instructor':'student'))
        ));
        if(empty($args['type'])){
            $args['type']='general';    
        }
        
        return $args;
    }

    function get_settings(){
        if(empty($this->settings)){
            $this->settings = get_option(WPLMS_CHAT_OPTION);     
        }
        return $this->settings;
    }
    function add_chat_in_profile_menu(){
        
        $this->get_settings();
        if(empty($this->settings['profile_chat']))
            return;

        global $bp;

        //Add learningpath in profile menu
        bp_core_new_nav_item( array( 
            'name' => __('CHAT','wplms-chat'),
            'slug' => WPLMS_CHAT_SLUG,
            'item_css_id' => 'wplms_chat',
            'screen_function' => array($this,'show_chat_screen'),
            'default_subnav_slug' => 'home',
            'position' => 50
        ) );


    }


    function show_chat_screen(){
         add_action( 'bp_template_title', function(){
            echo _x('Live Chats','Profile chat title','wplms-chat');
         });
        add_action( 'bp_template_content', array($this,'wplms_my_profile_chats'));
        bp_core_load_template( 'members/single/plugins');
    }

    function wplms_my_profile_chats(){
        $user_id = bp_displayed_user_id();
        add_filter('wplms_chat_class',function($x){
            return 'profile_chat';
        });
        echo do_shortcode('[wplms_chat type="personal" primary_id="" user_id="'.$user_id.'"]');
    }

    function wplms_chat_shortcode( $atts, $content = null ) {
        extract(shortcode_atts(array(
                'type'   => '',
                'primary_id'=>'',
                'notify_users'=>'',
                'chat_title'=>'',
                'chat_subtitle'=>'',
                'welcome_message'=>'',
                'user_id'=>'',
                'class'=>'',
            ), $atts));
        $return = '';
        

        $args = array();
        $args['type']=$type;

        $args['primary_id']=$primary_id;
        $args['notify_users']=$notify_users;
        $args['class']=$class;
        if(is_user_logged_in() && empty($user_id)){
            $user_id = get_current_user_id();
        }
        if(!empty($user_id)){

            $avatar = get_avatar($user_id);
            if(empty($avatar)){
                if(function_exists('vibe_get_option')){
                    $avatar = vibe_get_option('default_avatar');
                }
                
                if(empty($avatar)){
                    $avatar = plugins_url(__FILE__,'../assets/images/avatar.jpg');
                }
            }
            
            $wp_user = get_userdata($user_id);
            $user=array(
                    'id'=> $user_id,
                    'name'=> $wp_user->display_name,
                    'image'=> $avatar,
                    'type'=>'nonlogged',
                    'ip'=>$_SERVER["REMOTE_ADDR"],
                );
            $args['user']=$user;
        }

        if(!empty($chat_title)){
            $args['translations']['chat_title']=$chat_title;
        }
        if(!empty($chat_subtitle)){
            $args['translations']['chat_subtitle']=$chat_subtitle;
        }
        if(!empty($welcome_message)){
            $args['translations']['welcome_message']=$welcome_message;
        }
        $this->wplms_chat($args);
        remove_action('wp_footer',array($this,'wplms_chat'),11);
    }

    function show_chat_globally(){
        if(empty($this->settings)){
            $this->settings = get_option(WPLMS_CHAT_OPTION);     
        }
        $settings = $this->settings;

        if(empty($settings['show_chat']))
            return;

        $show_chat_option = false;
        switch($settings['show_chat']){
            case 'all':
                $show_chat_option = true;
            break;
            case 'read':
                if(is_user_logged_in()){
                    $show_chat_option = true;
                }
            break;
            case 'edit_posts':
                if(current_user_can('edit_posts')){
                    $show_chat_option = true;
                }
            break;
            default:
                $show_chat_option = apply_filters('wplms_chat_show_chat',$show_chat_option,$settings);
            break;
        }


        if(empty($show_chat_option))
            return;

        add_action('wp_footer',array($this,'wplms_chat'),11);
    }

    function stop_chat(){


        return apply_filters('wplms_stop_chat',false);


    }
    function wplms_chat($args=null){
        

        if($this->stop_chat())
            return;

        $settings = $this->get_settings();

        $class='bottomright';
        if(!empty($args['class'])){
            $class=$args['class'];
        }
        $chat_class = apply_filters('wplms_chat_class',$class);
        ?>
        <div class="wplms_chat_wrapper <?php echo $chat_class;?>">
            <div id="wplms_chat_root"></div>
        </div>
        <script>
            jQuery(document).ready(function($){
                $(window).scroll(function(event){
                    if($(this).scrollTop() >  $(window).height()){
                      $(".wplms_chat_wrapper").addClass("side");
                    }else{
                      $(".wplms_chat_wrapper").removeClass("side");
                    }
                });

                document.addEventListener("wplms_chat_update", function(e) {
                    $(".wplms_chat_wrapper").addClass("update");

                    
                    console.log(e.detail);

                    
                    $(".mychat[data-chat='"+e.detail+"']").addClass("update");
                });
                document.addEventListener("wplms_chat_update_seen", function(e) {
                    $(".wplms_chat_wrapper").removeClass("update");
                    $(".mychat[data-chat='"+e.detail+"']").removeClass("update");
                });
                document.addEventListener("wplms_chat_notification", function(e) {
                    $(".wplms_chat_wrapper").addClass("update");
                });
                document.addEventListener("wplms_chat_notification_seen", function(e) {
                    $(".wplms_chat_wrapper").removeClass("update");
                });
        <?php

        if(isset($_GET['wplms_chat_refresh'])){
            ?>
            var arr = []; // Array to hold the keys
            for (var i = 0; i < localStorage.length; i++){
                if(localStorage.key(i).substring(0,9) == 'lastSeen_' || localStorage.key(i).substring(0,11) == 'wplms_chat_' ) {
                    arr.push(localStorage.key(i));
                }
            }
            for (var i = 0; i < arr.length; i++) {
                localStorage.removeItem(arr[i]);
            }
            localStorage.removeItem('chat_last_opened');
            <?php
        }
        if(isset($settings['chat_avatars'])){
            ?>

            function wplms_chat_avatars(){
                let user_ids=[];
                $("img.photo").each(function(){
                    const regex = /user-([0-9]*)-avatar/gm;
                    const str  = $(this).attr("class");
                    let m = regex.exec(str);
                    if(m && m[1] !== window.wplms_chat.user.id){
                        $(this).parent().css('overflow','visible');
                        $(this).parent().append('<span class="trigger_chat" data-tip="<?php _e('Offline','wplms-chat'); ?>" data-id='+m[1]+'></span>');
                        if(user_ids.indexOf(m[1]) === -1){
                            user_ids.push(m[1]);
                        }
                    }
                });

                if(user_ids.length){
                    setTimeout(function(){
                        var event = new CustomEvent("wplms_chat_page_user_ids", { "detail": user_ids});
                        document.dispatchEvent(event);
                    },8000);
                    document.addEventListener("wplms_chat_online_user_ids", function(e) { console.log('Got data back');
                        console.log(e.detail); 
                        e.detail.forEach((user_id)=>{
                            $('.trigger_chat[data-id="'+user_id+'"]').addClass('online').attr('data-tip','<?php _e('Online','wplms-chat'); ?>');
                            $('.trigger_chat.online').on('click',function(){
                                var event = new CustomEvent("wplms_chat_initiate_chat_with_user_id", { "detail": $(this).attr('data-id')});
                                document.dispatchEvent(event);
                            });

                        });
                    });
                }
            }

            wplms_chat_avatars();
            $('#buddypress').on('bp_filter_request',function(){
                wplms_chat_avatars();
            });
            <?php
                
        } 
        ?>                   
        });
            </script>
        <?php
        $data = apply_filters('wplms_chat_before_data',array());
        if(empty($data)){


            if(function_exists('vibe_get_option')){
                $avatar = vibe_get_option('default_avatar');
            }
            
            if(empty($avatar)){
                $avatar = plugins_url(__FILE__,'../assets/images/avatar.jpg');
            }

            if(empty($notify_users)){
                $notify_users = $settings['chat_agents'];    
            }
            
            if(strpos($notify_users, ',') !== false){
                $notify_users=explode(',',$notify_users);
            }
            $data = array(
                'primary_id'=>0,
                'secondary_id'=>0,
                'type'=>'presale',
                'user'=>array(
                    'id'=> 0,
                    'name'=> 'Guest',
                    'image'=> $avatar,
                    'type'=>'nonlogged',
                    'ip'=>$_SERVER["REMOTE_ADDR"],
                ),
                'settings'=>array(
                    'chat_form'=>(empty($settings['chat_form'])?0:1),
                    'offline_notifications'=>(empty($settings['offline_notifications'])?0:1),
                ),
                'api_url'=>home_url().'/wp-json/wplms/v1/chat',
                'live_api_url'=>home_url().'/wp-json/wplms/v1/live',
                'notify_users'=>$notify_users,
                'translations'=>array(
                    'welcome'=> $settings['welcome_message'],
                    'chat_title'=>$settings['chat_title'],
                    'chat_subtitle'=>$settings['chat_subtitle'],
                    'first_message'=>__('Write first message','wplms-chat'),
                    'start_conversation'=>__('Start Conversation','wplms-chat'),
                    'start_chat'=>__('Start Chat','wplms-chat'),
                    'join_chat'=>__('Join Chat','wplms-chat'),
                    'enter_name'=>__('Enter Name','wplms-chat'),
                    'enter_email'=>__('Enter Email','wplms-chat'),
                    'load_chat'=>__('Load chat','wplms-chat'),
                    'set_default'=>__('Set as Default','wplms-chat'),
                    'delete'=>__('Delete chat','wplms-chat'),
                    'search_directory'=>__('Search Directory','wplms-chat'),
                    'no_member_found'=>__('No online member found','wplms-chat'),
                    'no_chat_member'=>__('No online chat agents found','wplms-chat'),
                    'no_my_chats'=>__('No previous chats found ! Click start conversation to start chat','wplms-chat'),
                    'invited_chat'=>__("You're invited to chat",'wplms-chat'),
                    'online'=>__('Online','wplms-chat'),
                    'offline'=>__('Offline','wplms-chat'),
                    'members'=>__('Members','wplms-chat'),
                    'mychats'=>__('Chats','wplms-chat'),
                    'chat'=>__('Chat','wplms-chat'),
                    'invite'=>__('Invite','wplms-chat'),
                    'invited'=>__('Invited','wplms-chat'),
                    'you'=>__('You','wplms-chat'),
                    'others'=>__('Others','wplms-chat'),
                    'hours'=>__('hours','wplms-chat'),
                    'minutes'=>__('minutes','wplms-chat'),
                    'exit_chat'=>__('Exit ','wplms-chat'),
                    'notifications'=>__('Notifications','wplms-chat'),
                    'guest'=>__('Guest','wplms-chat'),
                    'enter_name'=>__('Enter name','wplms-chat'),
                    'enter_email'=>__('Enter email','wplms-chat'),
                    'start_chat'=>__('Start Chat','wplms-chat'),
                    'new_conversation'=>__('New conversation','wplms-chat'),
                    'chat_invite'=>__("You're invited to chat",'wplms-chat'),
                    'accept'=>__('Accept','wplms-chat'),
                    'reject'=>__('Reject','wplms-chat'),
                    'days'=>__('days','wplms-chat'),
                    'istyping'=>__('is typing ...','wplms-chat'),
                ),
            );
        }
        if(!empty($args)){

            if(!empty($args['translations'])){
                $args['translations'] = array_merge($data['translations'],$args['translations']);    
            }
            $data = array_merge($data,$args);
        }
        $data = apply_filters('wplms_chat_after_data',$data);
        
        //DEvelopment
        wp_enqueue_script('wplms_chat','http://localhost:3000/static/js/bundle.js',array(),10,true);
        //Live
        //wp_enqueue_script('wplms_chat',plugins_url('../assets/js/wplms_chat.js',__FILE__),array(),WPLMS_CHAT_VERSION,true);

        wp_localize_script('wplms_chat','wplms_chat',$data);
        wp_enqueue_style('wplms_chat',plugins_url('../assets/js/wplms_chat.css',__FILE__),array(),WPLMS_CHAT_VERSION);
    }
}

WPLMS_Chat_Init::init();