const Discord = require('discord.js');
const moment = require('moment');

const deaths = [
    "watching too much anime", "an overdose of waifus", "Hypotakunemia", "trying to self-isekai",
    "Bass:tm:", "cranking the music just a little too loud", "trying to swim in lava", "an unknown cause",
    "Despacito"
]; // a list of preset death methods that can occur

const before = [
    "A name is being written...", "Someone will perish soon...", "A body is *about* to be discovered...",
    "{p} is scribbling something in their notebook...", "\*Manical laughter echoes around you*...",
    "{p} laughs maniacally..."
]; // things it says before the response is sent

const responses = {
    /*an obj controlling the possible formats for the death note report*/
    news: {
        titles: ["Breaking News"],
        texts: [
            "This just in: **{p}** was found dead at **{ds}** today.\n\nAfter some investigation, the authorities ruled the cause of death to be **{c}**.",
            "We're now live at the crime scene where it is believed that **{p}** died because of **{c}**.",
            "Authorities are reporting what is believed to be another Kira case, where **{c}** has taken the life of **{p}**."
        ],
        images: [],
    }, // a news report of the dead body
    writes: {
        titles: ["Something sinister just happened", "A name has been written", "Fate has been changed"],
        texts: [
            "With a maniacal laugh, **{w}** writes \"**{p}**\" in their Death Note. And the cause of death? They've written **{c}**.",
            "**{w}** has sealed **{pa}** fate to die by **{c}**."
        ],
        images: []
    }, // "so-and-so writes blah blah blah's name in their death note"
    /*hasdied: {
        texts: [],
        images: []
    }, // "so-and-so has died by...",
    unserious: {
        texts: [],
        images: []
    } // other methods, mainly the un-serious or joking ones */
};

//responses.unserious.images = responses.hasdied.images;

module.exports = {
    name: "deathnote",
    aliases: ['dn'],
    help: new Discord.MessageEmbed()
    .setTitle("Help -> Death Note")
    .setDescription("Congratulations! You've picked up a death note. Write someone's name in it, and see for yourself if it's the real deal...")
    .addField("Syntax", "\`deathnote <@member> [method of death]\`"),
    async execute(message, msg, args, cmd, prefix, mention, client) {
        if (!message.guild) {return message.reply("Unfortunately, this is a **guild-only** command!");}
        if (!args.length) {return message.channel.send(`Syntax: \`${prefix}deathnote <@member> [method of death]\``);}
        if (args[0] == "kill" || args[0] == "k") {args.shift();} // if someone adds in 'kill' it'll remove it and act like it wasn't there, proceeding as normal.
        if (!mention) {return message.reply("You have to write their name down in order to kill them! (In other words, please mention the user whose name you wish to write.)");}
        if (!args[0].trim().match(/^<@(?:\!?)\d+>$/)) {return message.reply("You have to mention someone!");}
        if (mention.id == message.author.id) {return message.reply("Hehe I won't let you write your own name in the notebook! Just leave it somewhere for a few days and someone else will take it. Maybe they'll write your name...");} // users can't mention themselves
        if (mention.id == client.user.id) {return message.reply("You can't kill me! Little did you know, I'm actually a death god!");}
        //TODO if bot is mentioned maybe

        let death = deaths[Math.floor(Math.random() * deaths.length)]; //kill method
        let reptype = responses[Object.keys(responses)[Math.floor(Math.random() * Object.keys(responses).length)]]; // report type
        let title = reptype.titles[Math.floor(Math.random() * reptype.titles.length)];
        let pretext = before[Math.floor(Math.random() * before.length)];

        let victim = message.mentions.members.first();
        let killer = message.member;

        let note = await message.channel.send(new Discord.MessageEmbed()
            .setDescription(pretext)
            .setColor('c375f0')
            .setFooter("Natsuki", client.user.avatarURL())
            .setTimestamp()
        );

        await require('../util/wait')(2500);

        let text = reptype.texts[Math.floor(Math.random() * reptype.texts.length)]
        .replace(/{p}/g, victim.displayName) //{p} = victim
        .replace(/{pa}/g, victim.displayName.toLowerCase().endsWith('s') ? `${victim.displayName}'` : `${victim.displayName}'s`) //{pa} = victim but with a formatted apostrophe like "WubzyGD's"
        .replace(/{c}/g, death) // {c} = death method
        .replace(/{w}/g, killer.displayName) // {w} = killer or writer
        .replace(/{ds}/g, moment().format("h:mm a")); // {ds} = date small, basically just the time.
        // Create and format the kill text

        //TODO message before sending then edit that message i.e. "A name is being written..." then wait 5s

        return note.edit(new Discord.MessageEmbed()
            .setAuthor(title, message.author.avatarURL())
            .setThumbnail(mention.avatarURL({size: 1024}))
            .setDescription(text)
            .setColor('c375f0')
            .setFooter("Natsuki")
            .setTimestamp()
        );
    }
};