import { db, getWorkerUtils } from "@link-stack/bridge-common";
import * as signalApi from "@link-stack/signal-api";
const { Configuration, MessagesApi, GroupsApi } = signalApi;

interface SendSignalMessageTaskOptions {
  token: string;
  to: string;
  message: any;
  conversationId?: string; // Zammad ticket/conversation ID for callback
}

const sendSignalMessageTask = async ({
  token,
  to,
  message,
  conversationId,
}: SendSignalMessageTaskOptions): Promise<void> => {
  const bot = await db
    .selectFrom("SignalBot")
    .selectAll()
    .where("token", "=", token)
    .executeTakeFirstOrThrow();

  const { phoneNumber: number } = bot;
  const config = new Configuration({
    basePath: process.env.BRIDGE_SIGNAL_URL,
  });
  const messagesClient = new MessagesApi(config);
  const groupsClient = new GroupsApi(config);
  const worker = await getWorkerUtils();

  let finalTo = to;
  let groupCreated = false;

  try {
    // Check if 'to' is a group ID (UUID format) vs phone number
    const isGroupId =
      /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i.test(
        to,
      );
    const enableAutoGroups = process.env.BRIDGE_SIGNAL_AUTO_GROUPS === "true";

    // If sending to a phone number and auto-groups is enabled, create a group first
    if (enableAutoGroups && !isGroupId && to && conversationId) {
      try {
        const groupName = `Support: ${to}`;
        const createGroupResponse = await groupsClient.v1GroupsNumberPost({
          number: bot.phoneNumber,
          data: {
            name: groupName,
            members: [to],
            description: "Private support conversation",
          },
        });

        if (createGroupResponse.id) {
          finalTo = createGroupResponse.id;
          groupCreated = true;
          console.log(
            `Created new Signal group ${finalTo} for conversation ${conversationId} with ${to}`,
          );

          // Notify Zammad about the new group ID via webhook
          await worker.addJob("common/notify-webhooks", {
            backendId: bot.id,
            payload: {
              event: "group_created",
              conversation_id: conversationId,
              original_recipient: to,
              group_id: finalTo,
              timestamp: new Date().toISOString(),
            },
          });
        }
      } catch (groupError) {
        console.error("Error creating Signal group:", groupError);
        // Continue with original recipient if group creation fails
      }
    }

    const response = await messagesClient.v2SendPost({
      data: {
        number,
        recipients: [finalTo],
        message,
      },
    });

    console.log(
      `Message sent successfully to ${finalTo}${groupCreated ? " (new group)" : ""}`,
    );
  } catch (error) {
    console.error({ error });
    throw error;
  }
};

export default sendSignalMessageTask;