const Discord = require('discord.js');
module.exports.run = (Brie, message, args) => {


mentionEmbed = new Discord.RichEmbed()

findMessage = args[0];

if (!findMessage) return message.reply('Please, choose some way to get the message [LINK or ID]').then(msg => msg.delete(6000))

response = args.slice(1).join(' ');
message.delete();

messageChannel = message.channel.id;

findMessageURL = new RegExp(/^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$/gm)

checkURL = findMessageURL.test(findMessage) // if true = it is a link.

checkID = isNaN(findMessage) // if true = it is not a number.
if (checkURL == true) {
    lastCharacter = findMessage.charAt(findMessage.length - 1);
    if (lastCharacter == '/') {

        lastCharacter = findMessage.charAt(findMessage.length - 2);
        messageChannel = findMessage.slice(-38, -20)
        findMessage = findMessage.slice(-19, - 2)

    } else {

        lastCharacter = findMessage.charAt(findMessage.length - 1);
        messageChannel = findMessage.slice(-37, -19)
        findMessage = findMessage.slice(-18, -1)
    }

    findMessage = findMessage + lastCharacter

} else if (checkID == false) {
    findMessage = findMessage;
}

/*Colocar para dar fetch mesmo que o canal*/
messageChannel = message.guild.channels.find(channel => channel.id == messageChannel)


messageChannel.fetchMessage(findMessage)
    .then(messageMentioned => {

        if (messageMentioned.author.bot) {
            return message.reply('You can not mention a message from bot.');
        }


        embedMention = new Discord.RichEmbed()
            .setColor('RANDOM')
            .setFooter('React this message after you read the same! (will be deleted in 120s)')
        if (response) {
            embedMention.setDescription(`Message Mentioned: \`\`\`md\n#${messageMentioned.author.username}: ${messageMentioned.content}\`\`\`
Response: \`\`\`md\n#${message.author.username}: ${response}\`\`\``)
        } else {
            embedMention.setDescription(`\`You can also answer the message putting after the ID/LINK\`
Message Mentioned: \`\`\`md\n#${messageMentioned.author.username}: ${messageMentioned.content}\`\`\`
Mentioned By: ${message.author.username}`)
        }

        message.channel.send(embedMention).then(embedMentioned => {


            // messageMentioned.createReactionCollector()  finish it.
            embedMentioned.react('👁');

            const filter = (reaction, user) => {
                return reaction.emoji.name === '👁' && user.id === message.author.id || user.id === messageMentioned.author.id;
            }

            embedMentioned.awaitReactions(filter, { max: 1, time: 120 * 1000, errors: ['time'] })
                .then(() => { embedMentioned.delete() })
                .catch(() => { embedMentioned.delete() })

        });

    }).catch((err) => {
        message.reply(`Sorry but I couldn't find the message by this way, try another way or check the LINK/ID`).then(msg => msg.delete(6000))
    })



}

module.exports.help = {
    name: 'mention',
    description: 'Mention a message',
    usage: `b.mention [ID/LINK]`,
    example: `b.mention 593177485139509279`,
    working: true
}