mirror of
https://github.com/pierre42100/ComunicAPI
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631 lines
18 KiB
PHP
631 lines
18 KiB
PHP
<?php
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/**
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* Conversations component
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*
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* @author Pierre HUBERT
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*/
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class conversations {
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/**
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* @var String $conversationsListTable Name of the conversation list table
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*/
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private $conversationsListTable;
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/**
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* @var String $conversationsUsersTable Name of the conversation users table
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*/
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private $conversationsUsersTable;
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/**
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* @var String $conversationMessagesTabel Name of the conversation messages table
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*/
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private $conversationsMessagesTable;
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/**
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* Public constructor
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*/
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public function __construct(){
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$this->conversationsListTable = CS::get()->config->get("dbprefix")."conversations_list";
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$this->conversationsUsersTable = CS::get()->config->get("dbprefix")."conversations_users";
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$this->conversationsMessagesTable = CS::get()->config->get("dbprefix")."conversations_messages";
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}
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/**
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* Get the conversations list of a specified user
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* or get informations of a specific conversation
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*
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* @param Integer $userID The ID of the user to get the list
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* @param Integer $conversationID Optionnal, the ID of conversation to get informatios from
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* @return Mixed Array in case of result / False else
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*/
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public function getList($userID, $conversationID = 0){
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//Prepare database request
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$tablesName = $this->conversationsListTable.", ".$this->conversationsUsersTable;
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//Prepare conditions
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$tableJoinCondition = $this->conversationsListTable.".ID = ".$this->conversationsUsersTable.".ID_".$this->conversationsListTable."";
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$userCondition = $this->conversationsUsersTable.".ID_utilisateurs = ?";
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$orderResults = "ORDER BY ".$this->conversationsListTable.".last_active DESC";
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//Specify conditions values
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$conditionsValues = array($userID);
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//Check if we have to get informations about just one conversation
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if($conversationID != 0){
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$specificConditions = "AND ".$this->conversationsListTable.".ID = ?";
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$conditionsValues[] = $conversationID;
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}
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else
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$specificConditions = ""; //Nothing now
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//Compile conditions
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$conditions = "WHERE ".$tableJoinCondition." AND (".$userCondition.") ".$specificConditions." ".$orderResults;
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//Fields list
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$requiredFields = array(
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$this->conversationsListTable.".ID",
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$this->conversationsListTable.".last_active",
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$this->conversationsListTable.".name",
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$this->conversationsListTable.".ID_utilisateurs AS ID_owner",
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$this->conversationsUsersTable.".following",
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$this->conversationsUsersTable.".saw_last_message",
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);
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//Perform database request
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$results = CS::get()->db->select($tablesName, $conditions, $conditionsValues, $requiredFields);
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//Check for errors
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if($results === false)
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return false; //An error occurred
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//Process results
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$conversationsList = array();
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foreach($results as $processConversation){
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$conversationsList[] = array(
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"ID" => $processConversation["ID"],
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"ID_owner" => $processConversation["ID_owner"],
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"last_active" => $processConversation["last_active"],
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"name" => ($processConversation["name"] == "" ? false : $processConversation["name"]),
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"following" => $processConversation["following"],
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"saw_last_message" => $processConversation["saw_last_message"],
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//Get and add conversation members
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"members" => $this->getConversationMembers($processConversation["ID"]),
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);
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}
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//Return results
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return $conversationsList;
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}
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/**
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* Get a conversation members
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*
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* @param Integer $conversationID The ID of the conversation
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* @return Array A list of the conversation members (empty arary may means that an error occured)
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*/
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public function getConversationMembers($conversationID) : array {
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//Perform a request on the database
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$tableName = $this->conversationsUsersTable;
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$conditions = "WHERE ID_".$this->conversationsListTable." = ?";
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$conditionsValues = array($conversationID*1);
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$getFields = array("ID_utilisateurs as userID");
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//Perform the request
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$results = CS::get()->db->select($tableName, $conditions, $conditionsValues, $getFields);
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if($results === false)
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return array(); //An error occured
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//Process results
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$membersList = array();
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foreach($results as $processUser)
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$membersList[] = $processUser["userID"];
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//Return result
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return $membersList;
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}
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/**
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* Create a new conversation
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*
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* @param Integer $userID The ID of the user creating the conversation
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* @param Boolean $follow Defines if the user creating the conversation will follow it
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* @param Array $usersList The list of users following the conversation
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* @param Mixed $name Optionnal, the name of the conversation
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* @return Integer 0 for a fail else the ID of the newly created conversation
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*/
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public function create($userID, $follow, array $usersList, $name = ""){
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$mainInformations = array(
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"ID_utilisateurs" => $userID*1,
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"name" => ($name ? $name : ""),
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"last_active" => time(),
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"creation_time" => time()
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);
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//First, insert the conversation in the main table
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if(!CS::get()->db->addLine($this->conversationsListTable, $mainInformations))
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return 0; //An error occured
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//Get the last inserted ID
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$conversationID = CS::get()->db->getLastInsertedID();
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//Check for errors
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if($conversationID == 0)
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return 0;
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//Insert users registrattions
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foreach($usersList as $processUser){
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//Make user follow the conversation if required
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$processUserFollowing = false;
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if($userID == $processUser)
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$processUserFollowing = $follow;
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//Try to insert user in conversation
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if(!$this->addMember($conversationID, $processUser, $processUserFollowing))
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return 0; //Error
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}
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//Conversation creation is a success
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return $conversationID;
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}
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/**
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* Check if a user is a member of a conversation or not
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*
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* @param Integer $userID The ID of the user to check
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* @param Integer $conversationID The ID of the conversation to check
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* @return Boolean True if the user belongs to the conversation
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*/
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public function userBelongsTo($userID, $conversationID){
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//Prepare a request on the database
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$tableName = $this->conversationsUsersTable;
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$conditions = "WHERE ID_".$this->conversationsListTable." = ? AND ID_utilisateurs = ?";
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$values = array(
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$conversationID,
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$userID
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);
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//Peform a request on the database
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$result = CS::get()->db->count($tableName, $conditions, $values);
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//Check if request failed
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if($result === false)
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return false; // An error occured
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//Analyse result and return it
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return $result != 0;
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}
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/**
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* Change the follow state of a user on conversation
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*
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* @param Integer $userID The ID to update
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* @param Integer $conversationID The ID of the conversation
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* @param Boolean $follow Specify if the conversation is followed or not
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* @return Boolean True for a success
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*/
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public function changeFollowState($userID, $conversationID, $follow){
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//Prepare the request on the database
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$tableName = $this->conversationsUsersTable;
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$conditions = "ID_".$this->conversationsListTable." = ? AND ID_utilisateurs = ?";
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$condVals = array(
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$conversationID,
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$userID
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);
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//Defines modifications
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$modifs = array(
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"following" => $follow ? 1 : 0,
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);
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//Update the table
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if(!CS::get()->db->updateDB($tableName, $conditions, $modifs, $condVals))
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return false; //An error occured
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//Success
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return true;
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}
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/**
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* Change conversation name
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*
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* @param Integer $conversationID The ID of the conversation
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* @param String $conversationName The name of the conversation
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* @return Boolean True for a success
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*/
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public function changeName($conversationID, $conversationName){
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//Prepare database request
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$tableName = $this->conversationsListTable;
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$conditions = "ID = ?";
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$condVals = array($conversationID);
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//Changes
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$changes = array(
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"name" => $conversationName,
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);
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//Try to perform request
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if(!CS::get()->db->updateDB($tableName, $conditions, $changes, $condVals))
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return false; //An error occured
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//Success
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return true;
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}
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/**
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* Update conversation members list
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*
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* @param Integer $conversationID The ID of the conversation to update
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* @param Array $conversationMembers The new list of conversation members
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* @return Boolean True for a success
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*/
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public function updateMembers($conversationID, array $conversationMembers){
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//Get the current conversation list
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$currentMembers = $this->getConversationMembers($conversationID);
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//Determinate entries to add
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$toAdd = array_diff($conversationMembers, $currentMembers);
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//Determinate entries to remove
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$toRemove = array_diff($currentMembers, $conversationMembers);
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//Add new member
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foreach($toAdd as $processInsert){
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if(!$this->addMember($conversationID, $processInsert))
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return false; //An error occured
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}
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//Remove old members
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foreach($toRemove as $processDelete){
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if(!$this->removeMember($conversationID, $processDelete))
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return false; //An error occured
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}
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//Success
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return true;
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}
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/**
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* Add a member to the list
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*
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* @param Integer $conversationID The ID of the target conversation
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* @param Integer $userID The ID of the user to add to the conversation
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* @param Boolean $follow Optionnal, specify if the user will follow or not the conversation
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* @return Boolean True for a success
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*/
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private function addMember($conversationID, $userID, $follow = false){
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//Prepare database request
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$tableName = $this->conversationsUsersTable;
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$values = array(
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"ID_".$this->conversationsListTable => $conversationID,
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"ID_utilisateurs" => $userID,
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"time_add" => time(),
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"following" => $follow ? 1 : 0,
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"saw_last_message" => 1
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);
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//Try to perform request
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return CS::get()->db->addLine($tableName, $values);
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}
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/**
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* Remove a member from the list
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*
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* @param Integer $conversationID The ID of the target conversation
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* @param Integer $userID The ID of the user to remove from the conversation
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* @return Boolean True for a success
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*/
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private function removeMember($conversationID, $userID){
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//Prepare database request
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$tableName = $this->conversationsUsersTable;
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$conditions = "ID_".$this->conversationsListTable." = ? AND ID_utilisateurs = ?";
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$values = array(
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$conversationID,
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$userID
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);
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//Try to perform request
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return CS::get()->db->deleteEntry($tableName, $conditions, $values);
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}
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/**
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* Check if a user is a conversation moderator or not
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*
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* @param Integer $userID The ID of the user to check
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* @param Integer $conversationID The ID of the conversation to check
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* @return Boolean True if the user is a conversation moderator / false else
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*/
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public function userIsModerator($userID, $conversationID){
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//Prepare database request
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$tableName = $this->conversationsListTable;
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$conditions = "WHERE ID = ?";
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$values = array($conversationID);
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$requiredFields = array(
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"ID_utilisateurs"
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);
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//Peform a request on the database
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$results = CS::get()->db->select($tableName, $conditions, $values, $requiredFields);
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//Check for errors
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if($results === false)
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return false; // An error occured
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//Check if there was results
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if(count($results) === 0)
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return false;
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//Check the first result only
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return $results[0]["ID_utilisateurs"] == $userID;
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}
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/**
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* Search for a private conversation between two users
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*
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* @param Integer $user1 The first user
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* @param Integer $user2 The second user
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* @return Array The list of private conversations
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*/
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public function findPrivate($user1, $user2) : array{
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//Prepare database request
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$tableName = $this->conversationsUsersTable." AS table1 JOIN ".
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$this->conversationsUsersTable." AS table2";
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//Prepare conditions
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$joinCondition = "table1.ID_".$this->conversationsListTable." = table2.ID_".$this->conversationsListTable;
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$whereConditions = "table1.ID_utilisateurs = ? OR table1.ID_utilisateurs = ?";
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$groupCondition = "table1.ID_".$this->conversationsListTable." having count(*) = 4";
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//Conditions values
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$condValues = array($user1, $user2);
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//Required fields
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$requiredFields = array(
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"table1.ID_".$this->conversationsListTable." as conversationID",
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);
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//Build conditions
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$conditions = "ON ".$joinCondition." WHERE ".$whereConditions." GROUP BY ".$groupCondition;
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//Try to perform request
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$results = CS::get()->db->select($tableName, $conditions, $condValues, $requiredFields);
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//Check for errors
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if($results === false)
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return false;
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//Prepare return
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$conversationsID = array();
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foreach($results as $processConversation)
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$conversationsID[] = $processConversation["conversationID"];
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//Return result
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return $conversationsID;
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}
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/**
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* Insert a new message in the database
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*
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* @param Integer $userID The ID of the user inserting the message
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* @param Integer $conversationID The ID of the target conversation
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* @param String $message The message to insert
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* @param Mixed $image_path Optionnal, the path to an image associated with the message
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* @return Boolean True for a success
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*/
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private function insertMessage($userID, $conversationID, $message, $image_path = false){
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//Prepare values
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$tableName = $this->conversationsMessagesTable;
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$values = array(
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"ID_".$this->conversationsListTable => $conversationID,
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"ID_utilisateurs" => $userID,
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"time_insert" => time(),
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"message" => $message
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);
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//Add image path (if required)
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if($image_path)
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$values['image_path'] = $image_path;
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//Try to insert new value in database
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if(!CS::get()->db->addLine($tableName, $values))
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return false; //An error occured
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//Success
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return true;
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}
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/**
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* Update the last time a conversation was active
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*
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* @param Integer $conversationID The ID of the conversation to update
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* @param Integer $time The new time of last activity to set
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* @return Boolean True for a success
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*/
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private function updateLastActive($conversationID, $time){
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//Perform a request on the database
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$tableName = $this->conversationsListTable;
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$conditions = "ID = ?";
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$condVals = array($conversationID);
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//Set new values
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$newValues = array(
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"last_active" => $time,
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);
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//Try to perform a request on the database
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if(!CS::get()->db->updateDB($tableName, $conditions, $newValues, $condVals))
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return false; //An error occured
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//Success
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return true;
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}
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/**
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* Mark all the users of a conversation as "unread"
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*
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* @param Integer $conversationID The ID of the conversation to update
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* @param Array $exceptions Users that should not be marked as read
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* @return Boolean True for a success
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*/
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private function allUsersAsUnread($conversationID, array $exceptions){
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//Prepare request
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$tableName = $this->conversationsUsersTable;
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$conditions = "ID_".$this->conversationsListTable." = ?";
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$condVals = array($conversationID);
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//Remove users exceptions
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foreach($exceptions as $userID){
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$conditions.= " AND ID_utilisateurs != ?";
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$condVals[] = $userID;
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}
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//Define new values
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$newValues = array(
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"saw_last_message" => 0
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);
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//Try to perform a request on the database
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if(!CS::get()->db->updateDB($tableName, $conditions, $newValues, $condVals))
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return false; //An error occured
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//Success
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return true;
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}
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/**
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* Send a new message
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*
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* @param Integer $userID The ID of the user sending the message
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* @param Integer $conversationID The ID of the target conversation
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* @param String $message The message
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* @param Mixed $image_path Optionna, define the path to an image associated with the message
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* @return Boolean True for a success
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*/
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public function sendMessage($userID, $conversationID, $message, $image_path = false){
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//GUIDE LINE : this method act like a "controller" : it doesn't perform any database operation
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//But it manage all operations (insert message; save image; inform other users; ...)
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//First, try to insert the message
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if(!$this->insertMessage($userID, $conversationID, $message, $image_path))
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return false; //An error occured
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//Then, update the last activity of the conversation
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if(!$this->updateLastActive($conversationID, time()))
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return false; //An error occured (2)
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//Then, set all the users of the conversation as unread
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if(!$this->allUsersAsUnread($conversationID, array($userID)))
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return false; //An error occured (3)
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//Success
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return true;
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}
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/**
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* Get the last messages of a conversation
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*
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* @param Integer $conversationID The ID of the target conversation
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* @param Integer $numberOfMessages The number of messages to return
|
|
* @return Array The messages of the conversation
|
|
*/
|
|
public function getLastMessages($conversationID, $numberOfMessages) : array {
|
|
|
|
//Define conditions
|
|
$conditions = "WHERE ID_".$this->conversationsListTable." = ? ORDER BY ID DESC LIMIT ".($numberOfMessages*1);
|
|
$condVals = array(
|
|
$conversationID
|
|
);
|
|
|
|
//Perform request
|
|
$messages = $this->getMessages($conditions, $condVals);
|
|
|
|
//Revert messages order
|
|
$messages = array_reverse($messages);
|
|
|
|
//Return messages
|
|
return $messages;
|
|
}
|
|
|
|
/**
|
|
* Get the new messages of a conversation
|
|
*
|
|
* @param Integer $conversationID The ID of the target conversation
|
|
* @param Integer $lastMessageID The ID of the last know message
|
|
* @return Array A list of messages
|
|
*/
|
|
public function getNewMessages($conversationID, $lastMessageID) : array {
|
|
|
|
//Define conditions
|
|
$conditions = "WHERE ID_".$this->conversationsListTable." = ? AND ID > ? ORDER BY ID";
|
|
$condVals = array(
|
|
$conversationID,
|
|
$lastMessageID
|
|
);
|
|
|
|
//Perform request
|
|
$messages = $this->getMessages($conditions, $condVals);
|
|
|
|
//Return messages
|
|
return $messages;
|
|
}
|
|
|
|
/**
|
|
* Get a list of conversation messages based on specified conditions
|
|
*
|
|
* @param String $conditions The conditions of the request
|
|
* @param Array $conditionsValues The values of the conditions (Optionnal)
|
|
* @return Array The list of messages
|
|
*/
|
|
private function getMessages($conditions, $conditionsValues = array()) : array{
|
|
|
|
//Prepare database request
|
|
$tableName = $this->conversationsMessagesTable;
|
|
|
|
//Define required fields
|
|
$requiredFields = array(
|
|
"ID",
|
|
"ID_utilisateurs AS ID_user",
|
|
"image_path",
|
|
"message",
|
|
"time_insert"
|
|
);
|
|
|
|
//Try to perform request on the database
|
|
$messages = CS::get()->db->select($tableName, $conditions, $conditionsValues, $requiredFields);
|
|
|
|
//Process each message
|
|
array_walk($messages, function(&$item){
|
|
|
|
//Check if the image of the message is not null
|
|
if($item["image_path"] !== null && $item["image_path"] != ""){
|
|
//Replace image name with full URL
|
|
$item["image_path"] = path_user_data($item["image_path"]);
|
|
}
|
|
});
|
|
|
|
//Return result
|
|
return $messages;
|
|
}
|
|
|
|
}
|
|
|
|
//Register component
|
|
Components::register("conversations", new conversations()); |