import {
  CommandInteraction, 
  TextChannel,
} from 'discord.js';
import {Command} from '../../classes/command';
import {logger} from '../../logger'
import {getContest, clearContest} from '../../functions/database';

function isTextChannel(data: unknown): data is TextChannel{
  return (data as TextChannel).name !== undefined;
}

class Clear extends Command{
  get name(){return "clear";}
  get description(){return "clear contest.";}
  async execute(interaction: CommandInteraction): Promise<void>{
    if(!isTextChannel(interaction.channel)){
      await interaction.reply({
        content: `Channel name doesn't exist!`
      });
      logger.error(`Channel name doesn't exist`);
      return;
    }
    const contestName = interaction.channel.name;
    const channelId = interaction.channel.id;
    const contest = await getContest(contestName);
    if(contest === null){
      await interaction.reply({
        content: `The contest in this channel didn't start!`
      });
      logger.error(`Contest ${contestName} didn't start`);
      return;
    }
    await clearContest(channelId);
    await interaction.reply({content: `Clear ${contestName} complete.`});
    logger.log(`Command: clear ${contestName}/${channelId}`);
  }
};

export const command = new Clear();