const bcrypt = require("bcryptjs");
const User = require("../models/User");
const Student = require("../models/Student");
const jwt = require("jsonwebtoken");
const JWT_secret = "Cantileverlabs";
const messagebird = require("messagebird")("llVKD53ve6QRpbCKOHzWBADaS", null, [
  "ENABLE_CONVERSATIONSAPI_WHATSAPP_SANDBOX",
]);
const nodemailer = require("nodemailer");
const smtpTransport = require("nodemailer-smtp-transport");

// -------------------------------------------- mail transporter -----------------------------------------

var transport = nodemailer.createTransport(
  smtpTransport({
    host: "email-smtp.us-east-1.amazonaws.com", //`${process.env.HOST}`
    port: 465,
    auth: {
      user: "AKIA2G7743RRTZMVXE3X", //`${process.env.EMAIL}`
      pass: "BJSjV3jArJfsnk1LhFc/hUmisEyEtbLNGgrRbv0noh8c", //`${process.env.PASS}`
    },
  })
);

// -------------------------------------------- mail transporter -----------------------------------------

module.exports.Protected = async (req, res, next) => {
  res.send("Hello User");
};
module.exports.postSignup = async (req, res, next) => {
  try {
    //we need firstName , lastName , email , password as input
    let firstName = req.body.firstName || " ";
    let lastName = req.body.lastName || " ";
    const { sending_company_email, email, password, subject, _html } = req.body;
    let user = await User.findOne({ email: email });
    if (user) {
      res.json({
        message: "User already exist",
        type: "error",
      });
    } else {
      const email_otp = Math.floor(100000 + Math.random() * 900000);
      console.log("otp", email_otp);
      const hashedPass = await bcrypt.hash(password, 12);
      user = new User({
        firstName: firstName,
        lastName: lastName,
        email: email,
        password: hashedPass,
        isAdmin: false,
        email_otp,
      });
      user = await user.save();
      await Student.deleteOne({ user: user._id });
      let student = new Student({
        user: user._id,
      });
      student = await student.save();
      user.student = student._id;
      await user.save();
      const message = {
        from: `${sending_company_email}`, // Sender address
        to: `${email}`, // List of recipients
        subject: `${subject}`, // Subject line
        html: `${_html}`, // design html for email message.
      };
      transport.sendMail(message, function (err, info) {
        if (err) {
          console.log(err);
        } else {
          console.log(info);
        }
      });
      res.json({
        message: "OTP has sent to the Email",
        type: "success",
      });
    }
  } catch (err) {
    console.log(err);
  }
};

module.exports.verfiyemail = async (req, res, next) => {
  const { email, otp } = req.body;
  try {
    let user = await User.findOne({ email: email });
    if (user) {
      const isMatched = await (user.email_otp == otp ? true : false);
      if (isMatched) {
        if (!user.isVerified) {
          user.isVerified = true;
          await user.save();
          res.json({
            message: "User Verified, Please Login",
          });
        } else {
          res.json({
            message: "User Already Verified, Please Login",
          });
        }
      } else {
        res.json({
          message: "OTP Doesn't Matched!",
          type: "error",
        });
      }
    } else {
      res.json({
        message: "No user with this email exists",
        type: "error",
      });
    }
  } catch {
    (err) => {
      console.log(err);
    };
  }
};

module.exports.postSignin = async (req, res, next) => {
  try {
    //we need email and password as input
    let email = req.body.email;
    let password = req.body.password;
    let user = await User.findOne({ email: email });
    if (user) {
      const isMatched = await bcrypt.compare(password, user.password);
      if (isMatched) {
        const token = jwt.sign({ _id: user._id }, JWT_secret);
        res.json({
          token: token,
        });
      } else {
        res.json({
          message: "email and password doesn't match",
          type: "error",
        });
      }
    } else {
      res.json({
        message: "No user with this email exists",
        type: "error",
      });
    }
  } catch (err) {
    console.log(err);
  }
};

//                                     Phone verification Starts.
// -----------------------------------------------------------------------------------------------

module.exports.sendOTP = (req, res, next) => {
  //uNNYosMopvvCW9RTR1tRWJmYC test
  //llVKD53ve6QRpbCKOHzWBADaS live
  const { phoneNumber } = req.body;
  try {
    if (!phoneNumber) {
      res.status(422).json({ message: "Please Add All Required Fields" });
      return;
    } else {
      messagebird.verify.create(
        phoneNumber,
        {
          template: "Your verification code is %token",
        },
        function (err, response) {
          if (err) {
            console.log(err);
            res.status(422).json({ message: err.errors[0].description });
          } else {
            console.log(response);
            res.json({ id: response.id });
          }
        }
      );
    }
  } catch (err) {
    console.log(err);
  }
};

module.exports.getOTP = (req, res, next) => {
  try {
    const { id, otp } = req.body;
    messagebird.verify.verify(id, otp, function (err, response) {
      if (err) {
        console.log({ error: err.errors[0].description, id: id });
        res.json({ error: err.errors[0].description, id: id });
      } else {
        console.log(response);
        res.json({ message: "Code Verified" });
      }
    });
  } catch (err) {
    console.log(err);
  }
};
//                                     Phone verification End.
// -----------------------------------------------------------------------------------------------

// -----------------------------------------------------------------------------------------------
//                                      Forgot password Starts

module.exports.forgotpassword = async (req, res, next) => {
  const { email, link, sending_company_email, subject } = req.body;
  //link = https://cantileverlabs.herokuapp.com/resetpassword/:id/:token
  try {
    await User.findOne({ email }).then((user) => {
      if (!user) {
        res.status(404).json({ error: "User not found with this Email" });
        return;
      } else {
        const payload = {
          email: user.email,
          _id: user._id,
        };
        const secret = JWT_secret + user.password;
        const token = jwt.sign(payload, secret, { expiresIn: "10m" });
        User.findByIdAndUpdate(user._id, {
          $set: { passwordResetToken: token },
        })
          .then((data) => {
            const reset_link = `${link}/${user._id}/${token}`;

            const message = {
              from: `${sending_company_email}`, // Sender address
              to: `${user.email}`, // List of recipients
              subject: `${subject}`, // Subject line
              html: `<!DOCTYPE html>
              <html lang="en">
                <head>
                  <meta charset="UTF-8" />
                  <meta
                    name="viewport"
                    content="width=device-width, initial-scale=1.0 shrink-to-fit=no"
                  />
                  <title>Forgot password</title>
                  <link
                    rel="stylesheet"
                    href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
                  />
                  <link rel="stylesheet" href="./reset.css" />
              
                  <link
                    href="https://fonts.googleapis.com/css?family=Poppins"
                    rel="stylesheet"
                  />
                  <link rel="preconnect" href="https://fonts.gstatic.com" />
                  <link
                    href="https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700;800&display=swap"
                    rel="stylesheet"
                  />
                  <style>
                    body {
                      font-size: 16px;
                      font-family: Poppins;
                      letter-spacing: 0.02em;
                    }
              
                    .gray-reset-J {
                      background-color: #f2f7fb;
                    }
              
                    .reset-J h2 {
                      font-weight: 600;
                    }
                    .reset-J p {
                      font-weight: lighter;
                      font-size: 20px;
                    }
              
                    .reset-J button {
                      background-color: #ffc600;
                      color: white;
                      font-weight: 600;
                      font-size: 19px;
                      width: 340px;
                      border-radius: 10px 10px 10px 10px;
                    }
              
                    .reset-logo-J img {
                      width: 79px;
                      height: 79px;
                    }
              
                    .reset-logo1-J img {
                      width: 200px;
                      height: 50px;
                    }
              
                    .reset-logo2-J img {
                      width: 17px;
                      height: 17px;
                    }
              
                    .reset-light-J p {
                      font-size: 15px;
                    }
              
                    .light-copyright-J {
                      font-weight: lighter;
                      color: #6d6d6d;
                    }
              
                    .bold-copyright-J {
                      font-weight: 700;
                      color: #6d6d6d;
                    }
              
                    @media (max-width: 410px) {
                      .reset-J button {
                        width: 240px;
                        background-color: #ffc600;
                        color: white;
                        font-weight: 600;
                        font-size: 19px;
                        border-radius: 10px 10px 10px 10px;
                      }
                    }
                  </style>
                </head>
                <body>
                  <div class="container justify-content-center">
                    <div class="row justify-content-center">
                      <div
                        class="
                          m-5
                          px-5
                          py-4
                          gray-reset-J
                          col-xl-6 col-lg-6 col-md-8 col-sm-11 col-12
                        "
                      >
                        <div class="my-3 reset-logo-J">
                          <img src="./images/certificate design-11.png" alt="" />
                        </div>
                        <div class="reset-J">
                          <div class="my-4">
                            <h2 style="text-align: center">Hello</h2>
                          </div>
                          <p>
                            We got a request to reset your Password. No need to worry you can
                            reset your Password by clicking the Reset Button.
                          </p>
                          <a href=${reset_link}> <button class="btn p-3 my-3">Reset Password</button></a>
              
                          <div class="my-3">
                            <p>
                              Facing any other issue write us at
                              <a href="#">info@cantileverlabs.com</a>
                            </p>
                          </div>
              
                          <div class="my-4 reset-logo1-J">
                            <img src="./images/Rectangle 1048.png" alt="" />
                          </div>
                          <div class="reset-light-J">
                            <p>Privacy Policy | Terms of Use | Contact us</p>
                          </div>
                        </div>
                        <div class="reset-logo2-J my-5">
                          <img src="./images/Icon material-copyright.png" alt="" />
                          <span class="light-copyright-J"
                            >copyright
                            <span class="bold-copyright-J">2018 Cantilever Labs</span></span
                          >
                        </div>
                      </div>
                    </div>
                  </div>
                  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
                  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
                  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
                </body>
              </html>
              `, // design html for email message.
            };
            transport.sendMail(message, function (err, info) {
              if (err) {
                console.log(err);
              } else {
                console.log(info);
              }
            });
            res.status(200).json({
              message: "Link is Active for 10 mins",
              reset_link,
            });
          })
          .catch((err) => {
            console.log(err);
          });
      }
    });
  } catch {
    (error) => {
      console.log("Error from forgot pass", error);
    };
  }
};
module.exports.resetpassword = async (req, res, next) => {
  const { _id, token } = req.params;
  const { password } = req.body;
  try {
    let user = await User.findById({ _id });
    if (!user) {
      res.json({ error: "User not Found or WrongId" });
      return;
    } else {
      const secret = JWT_secret + user.password;
      const user_token = user.passwordResetToken;
      const payload = jwt.verify(token, secret);
      const hashedPass = await bcrypt.hash(password, 12);
      if (token == user_token) {
        user.password = hashedPass;
        await user
          .save()
          .then((ok) => {
            res.json({ message: "Password Updated!" });
          })
          .catch((err) => {
            console.log("Error in save", err);
          });
      } else {
        res.status(422).json({ error: "Either Token not found or Expired!" });
        return;
      }
    }
  } catch {
    (err) => {
      console.log("error from try catch resetpass", err);
    };
  }
};

//                                     Forgot password Ends
// -----------------------------------------------------------------------------------------------

module.exports.checkProtected = (req, res, next) => {
  console.log(req.user);
  res.json({
    message: "Protected",
    user: req.user,
  });
};