import path from 'path';
import { IgApiClient } from "igramapi";

const ig = new IgApiClient();

export async function Login() {
  ig.state.generateDevice(process.env.IG_USERNAME!);
  ig.state.appUserAgent

  ig.request.end$.subscribe(async () => {
    const serialized = await ig.state.serialize();
    delete serialized.constants; // this deletes the version info, so you'll always use the version provided by the library
    await Bun.write('./temp/session.json', JSON.stringify(serialized));
  });
  try {
    let loggedInUser;
    try {

      if (await Bun.file('./temp/session.json').exists()) {
        const sessionData = await Bun.file('./temp/session.json').json();
        await ig.state.deserialize(sessionData);
        loggedInUser = await ig.account.login(
          process.env.IG_USERNAME!,
          process.env.IG_PASSWORD!
        );
      } else {
        loggedInUser = await ig.account.login(
          process.env.IG_USERNAME!,
          process.env.IG_PASSWORD!
        );
        await ig.simulate.preLoginFlow();

        process.nextTick(async () => await ig.simulate.postLoginFlow());
      }
    } catch (error: any) {
      if (error.name === "IgCheckpointError") {
        console.error(
          "Instagram checkpoint required. Please verify your account in the Instagram app or handle the challenge."
        );
        // Optionally, you can trigger challenge handling here
        // await ig.challenge.auto(true); // Requesting sms-code or click "It was me" button
      } else {
        console.error("🔒 | Login failed:", error);
      }
      throw error;
    }

    const currentUser = await ig.account.currentUser();
    return { loggedInUser, currentUser };
  } catch (error) {
    console.warn("⚠️ | Failed to load session data:", error);

  }
}

export class Upload {
  static async Post(filePath: string, caption: string) {
    try {
      const ImagePath = path.resolve(`${filePath}`);
      const bunFile = Bun.file(ImagePath);
      const ImageBuffer = Buffer.from(await bunFile.arrayBuffer());

      await ig.publish.photo({
        file: ImageBuffer,
        caption: caption,
      });
    } catch (error) {
      console.error("Error uploading post:", error);
    }
  }

  static async Story(filePath: string, MLSV_YMD: string) {
    try {
      const ImagePath = path.resolve(`${filePath}`);
      const bunFile = Bun.file(ImagePath);
      const ImageBuffer = Buffer.from(await bunFile.arrayBuffer());

      await ig.publish.story({
        file: ImageBuffer,
        caption: `#인천상정중학교 #상정중학교 #급식 \n${MLSV_YMD}일자 급식`,
      });
    } catch (error) {
      console.error("Error uploading post:", error);
    }
  }
}