const path = require("path");
require("dotenv").config({
  path: path.resolve(process.cwd(), `.env.${process.env.NODE_ENV || "development"}`)
});

const admin = require("firebase-admin");
const logger = require("../utils/logger");
const { sendProManagerWelcomeEmail } = require("../email/sendemail");
const client = require("../graphql-client/graphql-client").client;
const serviceAccount = require(process.env.FIREBASE_ADMINSDK_JSON);
const generateEmailTemplate = require("../email/generateTemplate");

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: process.env.FIREBASE_DATABASE_URL
});

const createUser = async (req, res) => {
  logger.log("admin-create-user", "ADMIN", req.user.email, null, {
    request: req.body,
    ioadmin: true
  });

  const { email, displayName, password, shopid, authlevel, validemail } = req.body;

  try {
    const userRecord = await admin.auth().createUser({ email, displayName, password });

    // See the UserRecord reference doc for the contents of userRecord.

    const result = await client.request(
      `
        mutation INSERT_USER($user: users_insert_input!) {
          insert_users_one(object: $user) {
            email
          }
        }
      `,
      {
        user: {
          email: email.toLowerCase(),
          authid: userRecord.uid,
          validemail,
          associations: {
            data: [{ shopid, authlevel, active: true }]
          }
        }
      }
    );

    res.json({ userRecord, result });
  } catch (error) {
    logger.log("admin-update-user-error", "ERROR", req.user.email, null, {
      error
    });
    res.status(500).json(error);
  }
};

const sendPromanagerWelcomeEmail = (req, res) => {
  const { authid, email } = req.body;

  // Fetch user from Firebase
  admin
    .auth()
    .getUser(authid)
    .then((userRecord) => {
      if (!userRecord) {
        return Promise.reject({ status: 404, message: "User not found in Firebase." });
      }

      // Fetch user data from the database using GraphQL
      return client.request(
        `
        query GET_USER_BY_EMAIL($email: String!) {
          users(where: { email: { _eq: $email } }) {
            email
            validemail
            associations {
              id
              shopid
              bodyshop {
                id
                convenient_company
              }
            }
          }
        }`,
        { email: email.toLowerCase() }
      );
    })
    .then((dbUserResult) => {
      const dbUser = dbUserResult?.users?.[0];
      if (!dbUser) {
        return Promise.reject({ status: 404, message: "User not found in database." });
      }

      // Validate email before proceeding
      if (!dbUser.validemail) {
        logger.log("admin-send-welcome-email-skip", "ADMIN", req.user.email, null, {
          message: "User email is not valid, skipping email.",
          email
        });
        return res.status(200).json({ message: "User email is not valid, email not sent." });
      }

      // Check if the user's company is ProManager
      const convenientCompany = dbUser.associations?.[0]?.bodyshop?.convenient_company;
      if (convenientCompany !== "promanager") {
        logger.log("admin-send-welcome-email-skip", "ADMIN", req.user.email, null, {
          message: 'convenient_company is not "promanager", skipping email.',
          convenientCompany
        });
        return res.status(200).json({ message: `convenient_company is not "promanager", email not sent.` });
      }

      // Generate password reset link
      return admin
        .auth()
        .generatePasswordResetLink(dbUser.email)
        .then((resetLink) => ({ dbUser, resetLink }));
    })
    .then(({ dbUser, resetLink }) => {
      // Send welcome email (replace with your actual email-sending service)
      return sendProManagerWelcomeEmail({
        to: dbUser.email,
        subject: "Welcome to the ProManager platform.",
        html: generateEmailTemplate({
          header: "",
          subHeader: "",
          body: `
            <p>Welcome to the ProManager platform. Please click the link below to reset your password:</p>
            <p><a href="${resetLink}">Reset your password</a></p>
            <p>User Details:</p>
            <ul>
              <li>Email: ${dbUser.email}</li>
            </ul>
          `
        })
      });
    })
    .then(() => {
      // Log success and return response
      logger.log("admin-send-welcome-email", "ADMIN", req.user.email, null, {
        request: req.body,
        ioadmin: true,
        emailSentTo: email
      });
      res.status(200).json({ message: "Welcome email sent successfully." });
    })
    .catch((error) => {
      logger.log("admin-send-welcome-email-error", "ERROR", req.user.email, null, { error });

      if (!res.headersSent) {
        res.status(error.status || 500).json({
          message: error.message || "Error sending welcome email.",
          error
        });
      }
    });
};

const updateUser = (req, res) => {
  logger.log("admin-update-user", "ADMIN", req.user.email, null, {
    request: req.body,
    ioadmin: true
  });

  admin
    .auth()
    .updateUser(
      req.body.uid,
      req.body.user
      // {
      // email: "modifiedUser@example.com",
      // phoneNumber: "+11234567890",
      // emailVerified: true,
      // password: "newPassword",
      // displayName: "Jane Doe",
      // photoURL: "http://www.example.com/12345678/photo.png",
      // disabled: true,
      // }
    )
    .then((userRecord) => {
      // See the UserRecord reference doc for the contents of userRecord.

      logger.log("admin-update-user-success", "ADMIN", req.user.email, null, {
        userRecord,
        ioadmin: true
      });
      res.json(userRecord);
    })
    .catch((error) => {
      logger.log("admin-update-user-error", "ERROR", req.user.email, null, {
        error
      });
      res.status(500).json(error);
    });
};

const getUser = (req, res) => {
  logger.log("admin-get-user", "ADMIN", req.user.email, null, {
    request: req.body,
    ioadmin: true
  });

  admin
    .auth()
    .getUser(req.body.uid)
    .then((userRecord) => {
      return client
        .request(
          `
          query GET_USER_BY_AUTHID($authid: String!) {
            users(where: { authid: { _eq: $authid } }) {
              email
              validemail
              associations {
                id
                shopid
                bodyshop {
                  id
                  convenient_company
                }
              }
            }
          }
          `,
          { authid: req.body.uid }
        )
        .then((dbUserResult) => {
          res.json({
            ...userRecord,
            db: {
              validemail: dbUserResult?.users?.[0]?.validemail,
              company: dbUserResult?.users?.[0]?.associations?.[0]?.bodyshop?.convenient_company
            }
          });
        });
    })
    .catch((error) => {
      logger.log("admin-get-user-error", "ERROR", req.user.email, null, {
        error
      });
      res.status(500).json(error);
    });
};

const sendNotification = async (req, res) => {
  setTimeout(() => {
    // Send a message to the device corresponding to the provided
    // registration token.
    admin
      .messaging()
      .send({
        topic: "PRD_PATRICK-messaging",
        notification: {
          title: `ImEX Online Message - `,
          body: "Test Noti."
          //imageUrl: "https://thinkimex.com/img/io-fcm.png",
        },
        data: {
          type: "messaging-inbound",
          conversationid: "e0eb17c3-3a78-4e3f-b932-55ef35aa2297",
          text: "Hello. ",
          image_path: "",
          phone_num: "+16049992002"
        }
      })
      .then((response) => {
        // Response is a message ID string.
        console.log("Successfully sent message:", response);
      })
      .catch((error) => {
        console.log("Error sending message:", error);
      });

    res.sendStatus(200);
  }, 500);
};

const subscribe = async (req, res) => {
  const result = await admin
    .messaging()
    .subscribeToTopic(req.body.fcm_tokens, `${req.body.imexshopid}-${req.body.type}`);

  res.json(result);
};

const unsubscribe = async (req, res) => {
  try {
    const result = await admin
      .messaging()
      .unsubscribeFromTopic(req.body.fcm_tokens, `${req.body.imexshopid}-${req.body.type}`);

    res.json(result);
  } catch (error) {
    res.sendStatus(500);
  }
};

module.exports = {
  admin,
  createUser,
  updateUser,
  getUser,
  sendPromanagerWelcomeEmail,
  sendNotification,
  subscribe,
  unsubscribe
};

//Admin claims code.
// const uid = "JEqqYlsadwPEXIiyRBR55fflfko1";

// admin
//   .auth()
//   .getUser(uid)
//   .then((user) => {
//     console.log(user);
//     admin.auth().setCustomUserClaims(uid, {
//       ioadmin: true,
//       "https://hasura.io/jwt/claims": {
//         "x-hasura-default-role": "admin",
//         "x-hasura-allowed-roles": ["admin"],
//         "x-hasura-user-id": uid,
//       },
//     });
//   });