const discord = require ( "discord.js" ) ;

module. exports . run = async ( bot , message , args ) => {

    // Arguments that we need later.
    var item = "" ;
    var time ;
    var winnerCount ;

    // Check if you have perms to do this command.
    if ( ! message. member . hasPermission ( "MANAGE_MESSAGES" ) ) return message. channel . send ( "Sorry you can't do this" ) ;

    //! giveaway numberWinners second itemTo Win.

    // Request the number of winners.
    winnerCount = args [ 0 ] ;
    // Time how long it must last.
    time = args [ 1 ] ;
    // What prize you can win.
    item = args. splice ( 2 , args. length ) . join ( "" ) ;

    // Delete the message that has just been created by the user.
    message. delete ( ) ;

    // Calculate expiration date.
    var date = new Date ( ) . getTime ( ) ;
    var dateTime = new Date ( date + ( time * 1000 ) ) ;

    // Create embed.
    var giveawayEmbed = new discord. RichEmbed ( )
        . setTitle ( "🎉 ** GIVEAWAY ** 🎉" )
        . setFooter ( ` Expires : $ { dateTime } ` )
        . setDescription ( item ) ;

    // Send embed and put the response on the popper.
    var embedSend = await message. channel . send ( giveawayEmbed ) ;
    embedSend. react ( "🎉" ) ;

    // Set a timeout that goes off after the number of seconds.
    setTimeout ( function ( ) {

        // Arguments that we need.
        var random = 0 ;
        var winners = [ ] ;
        var inList = false ;

        // Get the users who have responded to the giveaway.
        var peopleReacted = embedSend. reactions . get ( "🎉" ) . users . array ( ) ;

        // Here we are going to go over all the people and see if the bone is in between
        // We must remove the bot from the list and then we continue.
        for ( var i = 0 ; i <people Reacted. length ; i ++ ) {
            if ( peopleReacted [ i ] . id == bot. user . id ) {
                people Reacted. splice ( i , 1 ) ;
                continuous ;
            }
        }

        // Here we check if someone has participated.
        if ( peopleReacted. length == 0 ) {
            return message. channel . send ( "No one has won so the bot wins." ) ;
        }

        // We will temporarily check if too many people have participated in the competition.
        if ( peopleReacted. length < winnerCount ) {
            return message. channel . send ( "There are too few people who participated, that's why the bot won." ) ;
        }

        // We will create a random number for the number of winners that we have previously entered and place the user in an array.
        for ( var i = 0 ; i < winnerCount ; i ++ ) {

            inList = false ;

            // Creating a random number so that we can choose a user.
            random = Math . floor ( Math . random ( ) * people Reacted. length ) ;

            // If a winner is already in the winners list then we have to search for another winner again.
            for ( var y = 0 ; y < winners. length ; y ++ ) {
                // Check if the selected winner is already in the list.
                if ( winners [ y ] == peopleReacted [ random ] ) {
                    // We put i 1 less so that we can continue in the list.
                    i -;
                    // We set this to true so that we know it is already in the list.
                    inList = true ;
                    break ;
                }
            }

            // If this is not in the list, we will add it.
            if ( ! inList ) {
                winners. push ( peopleReacted [ random ] ) ;
            }

        }

        // We will send a message for every winner.
        for ( var i = 0 ; i < winners. length ; i ++ ) {
            message. channel . send ( "Congratulations" + winners [ i ] + ` ! You have won ** $ { item } ** .` ) ;
        }

    } , 1000 * time ) ;


}

module. exports . help = {
    name : "giveaway" ,
    description : "Start a giveaway"
}