import * as wmill from "https://deno.land/x/windmill@v1.27.2/mod.ts";

import {

  encode as base64UrlEncode,

} from "https://deno.land/std@0.82.0/encoding/base64url.ts";

export async function main(

  gmail_auth: wmill.Resource<"gmail">,

  to_email: string,

  subject: string,

  message: string,

  userId: string = "me",

) {

  const token = gmail_auth["token"];

  const email_body =

    `From: <${userId}>\nTo: <${to_email}>\nSubject: ${subject}\n\r ${message}`;

  const email = base64UrlEncode(email_body);

  const SEND_EMAIL_URL =

    `https://gmail.googleapis.com/gmail/v1/users/${userId}/messages/send`;

  const body = {

    "raw": email,

  };

  const response = await fetch(SEND_EMAIL_URL, {

    method: "POST",

    body: JSON.stringify(body),

    headers: {

      Authorization: "Bearer " + token,

    },

  });

  const response_json = await response.json();

  return response_json;

}

#import wmill

def main(x: str):

    return x

import { encode as base64UrlEncode } from "https://deno.land/std@0.82.0/encoding/base64url.ts";

/**

 * @param user_id User's email address. The special value `me` can be used to indicate the authenticated user.

 */

type Gmail = {

  token: string;

};

export async function main(

  gmail_auth: Gmail,

  to_email: string,

  subject: string,

  message: string,

  file_name: string,

  file_content: string,

  user_id: string = "me",

) {

  const token = gmail_auth["token"];

  if (!token) {

    throw Error(`

    No authentication token was found.

    Go to "https://app.windmill.dev/resources?connect_app=gmail" to connect Gmail, 

    then select your token from the dropdown in the arguments window.

    (Click "Refresh" if you don't see your resource in the list.)\n`);

  }

  const boundary = "boundary_string";

  const text = [

    `Content-Type: multipart/mixed; boundary="${boundary}"\r\n`,

    'MIME-Version: 1.0\r\n',

    `From: ${user_id}\r\n`,

    `To: ${to_email}\r\n`,

    `Subject: ${subject}\r\n\r\n`,

    `--${boundary}\r\n`,

    'Content-Type: text/plain; charset="UTF-8"\r\n',

    'MIME-Version: 1.0\r\n',

    'Content-Transfer-Encoding: 7bit\r\n\r\n',

    `${message}\r\n\r\n`,

    `--${boundary}\r\n`,

    'Content-Type: application/octet-stream\r\n',

    'MIME-Version: 1.0\r\n',

    'Content-Transfer-Encoding: base64\r\n',

    `Content-Disposition: attachment; filename="${file_name}"\r\n\r\n`,

    `${file_content}\r\n\r\n`,

    `--${boundary}--`

  ].join('');

  const textEncoder = new TextEncoder();

  const email = base64UrlEncode(textEncoder.encode(text));

  const body = JSON.stringify({

    raw: email,

  });

  const SEND_URL =

    `https://gmail.googleapis.com/gmail/v1/users/${user_id}/messages/send?uploadType=multipart`;

  const response = await fetch(SEND_URL, {

    method: "POST",

    headers: { Authorization: "Bearer " + token },

    body,

  });

  const result = await handleSendEmailResult(await response.json(), to_email);

  return result;

}

async function handleSendEmailResult(result: object, to_email: string) {

  if (Object.keys(result).includes("error")) {

    return Promise.reject({ wm_to_email: to_email, ...result });

  }

  return result;

}

import { encode as base64UrlEncode } from "https://deno.land/std@0.82.0/encoding/base64url.ts";

/**

 * @param user_id User's email address. The special value `me` can be used to indicate the authenticated user.

 */

type Gmail = {

  token: string;

};

export async function main(

  gmail_auth: Gmail,

  to_email: string,

  subject: string,

  message: string,

  user_id: string = "me",

) {

  const token = gmail_auth["token"];

  if (!token) {

    throw Error(`

    No authentication token was found.

    Go to "https://app.windmill.dev/resources?connect_app=gmail" to connect Gmail, 

    then select your token from the dropdown in the arguments window.

    (Click "Refresh" if you don't see your resource in the list.)\n`);

  }

  const text = `From: <${user_id}>\nTo: <${to_email}>\nSubject: ${subject}\n\r ${message}`;

  const textEncoder = new TextEncoder();

  const email = base64UrlEncode(textEncoder.encode(text));

  const body = JSON.stringify({

    raw: email,

  });

  const SEND_URL = `https://gmail.googleapis.com/gmail/v1/users/${user_id}/messages/send`;

  const response = await fetch(SEND_URL, {

    method: "POST",

    headers: { Authorization: "Bearer " + token },

    body,

  });

  const result = await handleSendEmailResult(await response.json(), to_email);

  return result;

}

async function handleSendEmailResult(result: object, to_email: string) {

  if (Object.keys(result).includes("error")) {

    return Promise.reject({ wm_to_email: to_email, ...result });

  }

  return result;

}