const ESMCommand = require("../esm_command");
const Path = require("path");
const Fs = require("fs");
module.exports = class ESMCommand_Update extends ESMCommand {
    constructor(bot) {
        super(bot);
        this.permissions = {
            dev_only: true
        };

        this.commandParams = {
            version: {
                regex: /\d+\.\d+\.\d+/
            }
        };

        this.information = {
            category: "development",
            params: "",
            help: "A development command. Posts a changelog for the current release"
        };
    }

    async fromDiscord() {
        this.message.delete();
        let path = Path.resolve(`./changelogs/${this.params.version}.json`);
        if (!Fs.existsSync(path)) {
            return this.ESMBot.send(this.message.channel, `Version \`${this.params.version}\` changelog doesn't exist!`);
        }

        let updateInfo = Fs.readFileSync(path, "utf8");
        updateInfo = JSON.parse(updateInfo);

        let embed = new this.ESMBot.discord.MessageEmbed();
        embed.setTitle(`Changelog for Exile Server Manager (${this.params.version})`);
        embed.setDescription(this.util.isEmpty(updateInfo.notes) ? "" : updateInfo.notes);
        embed.setColor(this.ESMBot.colors.GREEN);
        embed.setAuthor(this.client.user.username, this.client.user.avatarURL());
        embed.setTimestamp(this.ESMBot.moment.utc());
        embed.addField(
            updateInfo.update_required ? "❗ Mod update is required" : "👌 No mod update needed",
            updateInfo.update_required ? `- Mod version is now: \`${updateInfo.mod_version}\`\n- You can download the update [here](http://www.esmbot.com/downloads)` : `- Current mod version: \`${updateInfo.mod_version}\``
        );

        if (!this.util.isEmpty(updateInfo.highlights)) {
            embed.addField("\u200B", `__${this.params.version} Highlights:__`, false);

            for (let highlight in updateInfo.highlights) {
                embed.addField(highlight, updateInfo.highlights[highlight]);
            }
        }

        embed.addField("\u200B", `__${this.params.version} Full Changelog:__`, false);

        for (let type in updateInfo.changes) {
            let entries = updateInfo.changes[type];
            if (this.util.isEmpty(entries)) continue;
            let value = "";
            for (let [state, entry] of entries) {
                value += `**[${state}]** ${entry}\n`;
            }
            embed.addField(type.toUpperCase(), value);
        }

        this.ESMBot.send(this.message.channel, embed);
    }
}