import {CacheType, ChatInputCommandInteraction, hyperlink, PermissionFlagsBits, SlashCommandBuilder} from "discord.js";
import {ChatInteractionCommand, Command} from "./Command";
import * as fs from "node:fs";
import {UserError} from "../UserError";
import {ifError} from "node:assert";
import {BuildContextGetter} from "../../Utilities/BuildContext";
import {EmbedLibrary} from "../EmbedLibrary";

export class BotCommand implements Command, ChatInteractionCommand {
  definition(): SlashCommandBuilder {
    return new SlashCommandBuilder()
      .setName("bot")
      .setDescription("Offers some information about the bot")
      .setDefaultMemberPermissions(PermissionFlagsBits.Administrator)
      .addSubcommand(command => command
        .setName("build")
        .setDescription("Displays some information about the build the bot is running on.")
      )
  }

  execute(interaction: ChatInputCommandInteraction<CacheType>): Promise<void> {
    switch (interaction.options.getSubcommand()) {
      case "build":
        this.displayBuildInfos(interaction);
        break;
    } 
  }
  
  private displayBuildInfos(interaction: ChatInputCommandInteraction<CacheType>) {
    const buildContext = new BuildContextGetter().getContext();
    if (!buildContext) {
      throw new UserError("Can't find required deploy information", "Using a valid docker image or (when running on a dev build) running `npm run build` once.");
    }
    
    const embed = EmbedLibrary.base("Current Build")
      .setFields(
        [
          {
            name: "Build Target",
            value: buildContext.target,
            inline: true
          },
          {
            name: "Build Label",
            value: buildContext.label,
            inline: true
          },
          {
            name: "Latest Commit",
            value: hyperlink(buildContext.commitHash, buildContext.commitLink)
          }
        ]
      )
    
    interaction.reply({
      embeds: [embed]
    })
  }
  
}