import { Interaction, Client as DiscordClient } from "discord.js";
import requireDirectory from "require-directory";

import Command from "./command";

export default class CommandManager {
  readonly commands: Command[] = [];

  constructor(directory = "./commands") {
    const files = requireDirectory(module, directory);
    for (const i in files ) {
      try {
        // eslint-disable-next-line @typescript-eslint/ban-ts-comment
        // @ts-ignore
        // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
        this.commands.push(new (files[i].default as Command)());
      }
      catch (e) {
        console.error(`Failed to construct command ${i} (${typeof e}):`);
        console.error(e);
      }
    }
  }

  onInteraction(interaction: Interaction) {
    if (
      interaction.isChatInputCommand() ||
      interaction.isMessageContextMenuCommand() ||
      interaction.isUserContextMenuCommand()
    ) {
      const foundCommand = this.commands.find((command) => command.name === interaction.commandName );
      if (!foundCommand) throw new Error(`Unknown command received (${interaction.commandName}). Did you forgot to push updated commands?`);
      foundCommand.execute(interaction).catch(e => {
        interaction.reply({
          embeds: [{
            color: 0xff0000,
            description: `Failed to perform interaction:\n\`\`${e}\`\``,
          }],
          ephemeral: true,
        }).catch(() => {/* NOTE: We're still logging the issue that happened to the console */});
        console.error(`Failed to perform interaction: ${interaction.commandName}`);
        console.error(e);
      });
      return;
    }
    if (interaction.isAutocomplete()) {
      const foundCommand = this.commands.find((command) => command.name === interaction.commandName );
      if (!foundCommand) throw new Error(`Unknown command received (${interaction.commandName}). Did you forgot to push updated commands?`);
      if (!foundCommand.autocomplete) return;
      foundCommand.autocomplete(interaction).catch(e => {
        console.error(`Failed to perform autocomplete interaction: ${interaction.commandName}`);
        console.error(e);
      });
      return;
    }
  }

  bindClient(client: DiscordClient) {
    client.on("interactionCreate", (e) => this.onInteraction(e));
  }
}