import { Message } from "discord.js";
import { sendProgressUpdate, executeBulkRoleAssignment } from "./utilities";

export const handleStartCommand = async (message: Message) => {
  if (message.author.bot) return;

  if (message.content.toLowerCase().startsWith("uma!start")) {
    const application = await message.client.application?.fetch();
    const ownerId = application?.owner?.id;

    if (message.author.id !== ownerId) return;

    const parameters = message.content.split(" ").slice(1);

    if (parameters.length < 3) {
      await message.reply(
        "❌ Usage: `uma!start <role_mention> <channel_mention_or_category_id> <update_channel_id> [action]`\nExample: `uma!start @Participant #general 1415599617214513254 execute`",
      );

      return;
    }

    const roleMention = parameters[0];
    const channelOrCategory = parameters[1];
    const updateChannelId = parameters[2];
    const action = parameters[3] || "execute";
    const roleMatch = roleMention.match(/<@&(\d+)>/);

    if (!roleMatch) {
      await message.reply("❌ Please mention a role. Example: `@Participant`");

      return;
    }

    const roleId = roleMatch[1];
    let channelId: string | undefined;
    let categoryId: string | undefined;
    const channelMatch = channelOrCategory.match(/<#(\d+)>/);

    if (channelMatch) {
      channelId = channelMatch[1];
    } else {
      categoryId = channelOrCategory;
    }

    if (action !== "preview" && action !== "execute") {
      await message.reply("❌ Action must be either `preview` or `execute`");

      return;
    }

    if (action === "preview") {
      await message.reply(
        "📋 Preview mode - this would check the specified channel(s) for users who have sent messages.",
      );

      return;
    }

    await message.reply(
      "🚀 Bulk role operation started! Check the progress channel for updates.",
    );

    executeBulkRoleAssignment(
      message.client,
      roleId,
      updateChannelId,
      channelId,
      categoryId,
    ).catch((error) => {
      console.error("Bulk role assignment failed:", error);
      sendProgressUpdate(
        message.client,
        "❌ Bulk role assignment failed due to an error",
        updateChannelId,
      );
    });
  }
};