import eris from 'eris';
import mongoose from 'mongoose';
import { promises as fs } from 'fs';
import { Collection, Command, Util, ServerManagement, Event } from '.';
import { Member, MemberInterface, Moderation, ModerationInterface, Redirect, RedirectInterface } from '../models';

export default class Client extends eris.Client {
  public config: { token: string, prefix: string, guildID: string, mongoDB: string };

  public commands: Collection<Command>;

  public events: Collection<Event>;

  public intervals: Collection<NodeJS.Timeout>;

  public util: Util;

  public serverManagement: ServerManagement;

  public db: { Member: mongoose.Model<MemberInterface>, Moderation: mongoose.Model<ModerationInterface>, Redirect: mongoose.Model<RedirectInterface> };

  constructor(token: string, options?: eris.ClientOptions) {
    super(token, options);
    this.commands = new Collection<Command>();
    this.events = new Collection<Event>();
    this.intervals = new Collection<NodeJS.Timeout>();
    this.db = { Member, Moderation, Redirect };
  }

  public async loadDatabase() {
    await mongoose.connect(this.config.mongoDB, { useNewUrlParser: true, useUnifiedTopology: true });
  }

  public loadPlugins() {
    this.util = new Util(this);
    this.serverManagement = new ServerManagement(this);
  }

  public async loadIntervals() {
    const intervalFiles = await fs.readdir(`${__dirname}/../intervals`);
    intervalFiles.forEach((file) => {
      const intervalName = file.split('.')[0];
      if (file === 'index.js') return;
      const interval: NodeJS.Timeout = (require(`${__dirname}/../intervals/${file}`).default)(this);
      this.intervals.add(intervalName, interval);
      this.util.signale.success(`Successfully loaded interval: ${intervalName}`);
    });
  }

  public async loadEvents(eventFiles: { [s: string]: typeof Event; } | ArrayLike<typeof Event>) {
    const evtFiles = Object.entries<typeof Event>(eventFiles);
    for (const [name, Ev] of evtFiles) {
      const event = new Ev(this);
      this.events.add(event.event, event);
      this.on(event.event, event.run);
      this.util.signale.success(`Successfully loaded event: ${name}`);
      delete require.cache[require.resolve(`${__dirname}/../events/${name}`)];
    }
  }

  public async loadCommands(commandFiles: { [s: string]: typeof Command; } | ArrayLike<typeof Command>) {
    const cmdFiles = Object.values<typeof Command>(commandFiles);
    for (const Cmd of cmdFiles) {
      const command = new Cmd(this);
      this.commands.add(command.name, command);
      this.util.signale.success(`Successfully loaded command: ${command.name}`);
    }
  }
}