/**
 * User informations functions
 * 
 * @author Pierre HUBERT
 */

ComunicWeb.user.userInfos = {

    /**
     * @var {String} User infos cache
     */
    usersInfos: {},

    /**
     * Get user informations
     * 
     * @param {String} userID User on which to make request (current to get connected user)
     * @param {function} afterGetUserInfos What to do once user informations are available
     * @return {Boolean} True for a success
     */
    getUserInfos: function(userID, afterGetUserInfos){

        //If requested user is the current user, replace "current" with userID
        if(userID === "current")
            userID = ComunicWeb.user.userLogin.__userID;

        //First, check if informations are already available in the cache
        if(this.usersInfos[userID]){
            afterGetUserInfos(this.usersInfos[userID]); //Then return these informations now
            return true;
        }
            
        //Else we have to perform an API request
        var apiURI = "user/getInfos";
        var params = {
            userID: userID
        };

        //Specify what to do next
        var onceGetUserInfos = function(result){
            if(result.error){
                ComunicWeb.debug.logMessage("ERROR : couldn't get infos about user ID : "+userID+" !");

                //Returns the error to the next function
                afterGetUserInfos(result);

                return false;
            }
            else {
                //Save result
                ComunicWeb.user.userInfos.usersInfos[""+userID] = result[0];

                //Return result
                afterGetUserInfos(result[0]);
            }
        }

        //Perform request
        ComunicWeb.common.api.makeAPIrequest(apiURI, params, true, onceGetUserInfos);

        //Everything is OK
        return true;

    },

    /**
     * Empty user informations cache
     * Remove all entries from user informations cache
     * 
     * @return {Boolean} True for a success
     */
    emptyUserInfosCache: function(){
        this.userInfos = undefined; //Mark user info cache as undefined
        this.userInfos = {}; //Create a new variable

        return true;
    },
}