//Get the data models
const { Supplier } = require('../models/supplier');
const { ProfilePicture } = require('../models/User')
const supplierController = require("../controllers/supplierController");
const customJwtAuth = require("../customAuthJwt");
const fastify = require("fastify")({
  logger: true,
  //disableRequestLogging: true,
  genReqId(req) {
    // you get access to the req here if you need it - must be a synchronous function
    return uuidv4();
  },
});

const fastifyEnv = require("fastify-env");

const boom = require("boom");
const emailValidator = require("email-validator");
const libphonenumberjs = require("libphonenumber-js");


fastify.register(customJwtAuth);

const schema = {
  type: "object",
  required: ["PORT"],
  properties: {
    PORT: {
      type: "string",
      default: 3000,
    },
    APIVERSION: {
      type: "string",
      default: "1.0.0",
    },
  },
};

const options = {
  confKey: "config", // optional, default: 'config'
  schema: schema,
  // data: data // optional, default: process.env
};
fastify.register(fastifyEnv, options).ready((err) => {
    if (err) console.error(err);
  
    console.log(fastify.config.PORT); // or fastify[options.confKey]
    // output: { PORT: 3000 }
    fastify.decorate("conf", {
      port: fastify.config.PORT,
      APIVERSION: fastify.config.APIVERSION,
    });
  });
  
  
  
const apiversion = "1.0.0";

// fastify.register(require('fastify-cookie'))
// fastify.register(require('fastify-session'), {
//   secret: 'my-secret-key',
//   cookie: { secure: true }
// });

isSupplierFormUrlEncoded = (req) => {
  var isSupplierFormUrlEncoded = false;
  console.log("check is Supplier encoe url funtion");
  // This iterates through the req headers object.
  // could not access req.headers.content-type due to the hyphen in the content-type key.
  // console.log(`${key}: ${value}`);
  for (const [key, value] of Object.entries(req.headers)) {
    if (`${key}` === "content-type") {
      if (`${value}` == "application/x-www-form-urlencoded") {
        // console.log( "data supplied is with content type," , `${value}`)
        // set isUserFormUrlEncoded value to true
        isSupplierFormUrlEncoded = true;

        // create user object with form variables . Password is used from the request object directly.
        s_data = {
          suppliername: req.body.suppliername,
          phone: req.body.phone,
          office_address: req.body.office_address,
          password: req.body.password,
          emails: [
            {
              email: req.body.email,
            },
          ],
          profile: {
            firstName: req.body.firstName,
            lastName: req.body.lastName,
          },
        };

        return { isSupplierFormUrlEncoded: isSupplierFormUrlEncoded, supplier: s_data };
      } else {
        return { isSupplierFormUrlEncoded: false, s_data: "" };
      }
    }
  }
};

fastify.register((fastify, opts, done) => {
  fastify.addContentTypeParser(
    "application/json",
    { parseAs: "buffer" },
    function (_req, body, done) {
      try {
        done(null, body)
      } catch (error) {
        error.statusCode = 400
        done(error, undefined)
      }
    }
  )
  
  done(null)
})




//Login Supplier Handler
exports.loginSupplier = async(request, reply) =>{
    loginObject = await supplierController.loginSupplier(request);
    console.log("loginObject...",loginObject)
    if (loginObject.same) {
      const phoneVerified = loginObject.supplier.phoneVerified;
      const oneTimePasswordSetFlag = loginObject.supplier.oneTimePasswordSetFlag;
      console.log(
        "oneTimePasswordSetFlag is ......",
        oneTimePasswordSetFlag,
        typeof oneTimePasswordSetFlag,
        typeof phoneVerified
      );
      if (!phoneVerified) {
        reply.send({
          simplydata: {
            error: false,
            phoneVerified: false,
            
            phone: loginObject.supplier.phone,
            oneTimePasswordSetFlag: oneTimePasswordSetFlag,
            message: "Please Verify your phone number",
          },
        });
      } else if (oneTimePasswordSetFlag) {
        reply.send({
          simplydata: {
            error: false,
            phoneVerified: phoneVerified,
            phone: loginObject.supplier.phone,
            oneTimePasswordSetFlag: true,
            message: "Password must be reset",
          },
        });
      } else {
        const token = fastify.jwt.sign(
          {
            suppliername: loginObject.supplier.suppliername,
            supplierId: loginObject.supplier._id,
            roles: loginObject.supplier.profile.role,
          },
          //expiresIn: expressed in seconds or a string describing a time span zeit/ms. Eg: 60, "2 days", "10h", "7d".
          //A numeric value is interpreted as a seconds count. If you use a string be sure you provide the time units (days, hours, etc),
          //otherwise milliseconds unit is used by default ("120" is equal to "120ms").
          { expiresIn: "30d" }
        );
        console.log(token, "..token")

        var arr = loginObject.supplier.profile.role;
        var arrayToString = JSON.stringify(Object.assign({}, arr)); // convert array to string
        var stringToJsonObject = JSON.parse(arrayToString); // convert string to json object
        var s_id = loginObject.supplier.supplierId

        console.log(s_id,"supplierId")
        var profilePicture = await ProfilePicture.findOne({ supplierId:s_id});

        // request.session.set('supplierId', loginObject.supplier._id)

        if (!profilePicture) {
          reply.send({
            simplydata: {
            error: false,
            apiversion: fastify.config.APIVERSION,
            access_token: token,
            
            email: loginObject.supplier.emails,
            phone: loginObject.supplier.phone,
            supplierId: loginObject.supplier.supplierId,
            suppliername: loginObject.supplier.suppliername,
            office_address:  loginObject.supplier.profile.office_address,
            phoneVerified: loginObject.supplier.phoneVerified,
            oneTimePasswordSetFlag: loginObject.supplier.oneTimePasswordSetFlag,
            type: loginObject.supplier.profile.role,
            typeasobj: stringToJsonObject,
            },
          });
        }if (profilePicture) {
          reply.send({
            simplydata: {
              error: false,
            apiversion: fastify.config.APIVERSION,
            access_token: token,
            picture:profilePicture.picture,
            email: loginObject.supplier.emails,
            phone: loginObject.supplier.phone,
            supplierId: loginObject.supplier.supplierId,
            suppliername: loginObject.supplier.suppliername,
            office_address:  loginObject.supplier.profile.office_address,
            phoneVerified: loginObject.supplier.phoneVerified,
            oneTimePasswordSetFlag: loginObject.supplier.oneTimePasswordSetFlag,
            type: loginObject.supplier.profile.role,
            typeasobj: stringToJsonObject,
            },
          });
        }

      }
    } else {
      error = {
        simplydata: {
          error: true,
          code: 400,
          message: "Invalid SupplierId , Password supplied",
        },
      };
      reply.send(error);
    }
}


// Check if all the required fields are supplied by the user

exports.fieldCheck = async (req, reply) => {
  try {
    s_Data = {
      suppliername: req.body.suppliername,
      emails: req.body.emails,
      password: req.body.password,
      services: { password: {bcrypt: req.body.password} },
      phone: req.body.phone,
      profile: {
        firstName: req.body.firstName,
        lastName: req.body.lastName,
        contactNumber: req.body.phone,
        alternativeContactNumber: req.body.alternativeContactNumber,
        country: req.body.country,
        state: req.body.state,
        city: req.body.city,
        office_address: req.body.office_adress,
        zip: req.body.zip,
      },
    };

    var supplier = new Supplier(s_Data);

    console.log(supplier,"..supplier")
    //password is not at the top level in the collection.
    password = req.body.password;

    // capture fields if data is sent via form instead of json encoding

    checkFormEncoding = isSupplierFormUrlEncoded(req);
    if (checkFormEncoding.isSupplierFormUrlEncoded) {
      suppliertobeInserted = checkFormEncoding.supplier;
      supplier.suppliername = suppliertobeInserted.suppliername;
      supplier.phone = suppliertobeInserted.phone;
      supplier.emails = suppliertobeInserted.emails;
      password = suppliertobeInserted.password;
    }
    console.log("User to be inserted is ", supplier.suppliername,password,supplier.phone,supplier.profile);
    // check if all rerquired fields are passed.
    if (
      !(
        supplier.suppliername &&
        password &&
        supplier.phone &&
        // user.profile.firstName &&
        // user.profile.lastName &&
        // user.profile.address1 &&
        supplier.emails[0].email
      )
    ) {
      console.log(
        supplier.suppliername,
        password,
        supplier.phone,
        // user.profile.firstName,
        // user.profile.lastName,
        supplier.emails[0].email
      );
      // Required Fields are missing
      suppliedvalues =
      supplier.suppliername +
        " ," +
        password +
        " ," +
        supplier.phone +
        " ," +
        supplier.firstName +
        " ," +
        supplier.lastName +
        " ," +
        supplier.emails[0].email;
      error = {
        armintatankdata: {
          error: true,
          code: 10004,
          message:
            "10004 - suppliername, password, phone , firstname , lastname email city country state address1 and zip are required fields. Supplied values are " +
            suppliedvalues,
        },
      };
      req.body.regError = error;
      reply.send(error);
    }
  } catch (err) {
    throw boom.boomify(err);
  }
};

exports.validatePhoneFormat = async (req, reply) => {
  try {
    var supplier = new Supplier(req.body);

    // check if user supplied phone is of the right format.
    // Handle if the user data is supplied via a url encoded form
    // capture fields if data is sent via form instead of json encoding

    checkFormEncoding = isSupplierFormUrlEncoded(req);
    console.log(checkFormEncoding);
    if (checkFormEncoding.isSupplierFormUrlEncoded) {
      suppliertobeInserted = checkFormEncoding.supplier;
      supplier.suppliername = suppliertobeInserted.suppliername;
      supplierser.firstName = suppliertobeInserted.firstName;
      supplier.lastName = suppliertobeInserted.lastName;
      supplier.phone = suppliertobeInserted.phone;
      supplier.emails = suppliertobeInserted.emails;
    }
    if (supplier) {
      const phoneNumber = libphonenumberjs.parsePhoneNumber(supplier.phone);
      if (phoneNumber) {
        // access returned collection
        if (!phoneNumber.isValid()) {
          error = {
            armintatankdata: {
              error: true,
              code: 10002,
              message:
                "10002 - Phone # " +
                supplier.phone +
                " is not a valid phone number",
            },
          };
          req.body.regError = error;
         reply.status(406).send(error);
        }
      }
    }
  } catch (err) {
    throw boom.boomify(err);
  }
};

exports.verifySupplier = async (req, reply) => {
  try {
    var supplier = new Supplier(req.body);
    // Handle if the user data is supplied via a url encoded form
    // capture fields if data is sent via form instead of json encoding

    checkFormEncoding = isSupplierFormUrlEncoded(req);
    if (checkFormEncoding.isSupplierFormUrlEncoded) {
      suppliertobeInserted = checkFormEncoding.supplier;
      supplier.suppliername = suppliertobeInserted.suppliername;
      supplier.firstName = suppliertobeInserted.firstName;
      supplier.lastName = suppliertobeInserted.lastName;
      supplierr.phone = suppliertobeInserted.phone;
      supplier.emails = suppliertobeInserted.emails;
    }
    phone = supplier.phone;
    supplierpass = req.body.password;

    // check if user exists in the system. If user exists , display message that
    // phone number is not available

    supplierExists = await Supplier.findOne({ phone: phone });
    if (supplierExists) {
      // return user exists message
      error = {
        armintatankdata: {
          error: true,
          code: 10001,
          message:
            "10001 - Phone " +
            supplierExists.phone +
            " is not available. please use a different phone number",
        },
      };
      req.body.regError = error;
      reply.send(error);
    }
  } catch (err) {
    throw boom.boomify(err);
  }
};

exports.validateEmailFormat = async (req, reply) => {
  try {
    var supplier = new Supplier(req.body);
    // Handle if the user data is supplied via a url encoded form
    // capture fields if data is sent via form instead of json encoding

    checkFormEncoding = isSupplierFormUrlEncoded(req);
    if (checkFormEncoding.isSupplierFormUrlEncoded) {
      suppliertobeInserted = checkFormEncoding.supplier;
      supplier.suppliername = suppliertobeInserted.suppliername;
      supplier.firstName = suppliertobeInserted.firstName;
      supplier.lastName = suppliertobeInserted.lastName;
      supplierr.phone = suppliertobeInserted.phone;
      supplier.emails = suppliertobeInserted.emails;
    }
    supplieremail = await supplier.emails[0].email;
    // check if user supplied email is of the right format.
    if (supplier) {
      const isValidEmail = emailValidator.validate(supplieremail.trim());
      if (!isValidEmail) {
        // Return email invalid format message
        error = {
          armintatankdata: {
            error: true,
            code: 10003,
            message:
              "10003 - Email " + supplier.emails[0].email + " is not a valid email",
          },
        };
        req.body.regError = error;
        reply.send(error);
      }
    }
  } catch (err) {
    throw boom.boomify(err);
  }
};


exports.logoutsupplier = async (request, reply) => {
   
  
    // request.session.delete();
  
    // // send response to clear token
    // reply.send({ message: 'Successfully logged out' })

    const invalidatedTokens = {};
    const accessToken = request.headers.authorization && request.body.access_token;
   invalidatedTokens[accessToken] = true;

//   // localStorage.removeItem(invalidatedTokens[accessToken])

   reply.send({ message: 'Logout successful' })
  
  }
  

  exports.verifyPhone = async (req, reply) => {
    console.log("-------------------------------------------------");
    try {
      phone = req.body.phone;
      phoneVerificationCode = req.body.phoneVerificationCode;
  
      // check if user exists in the system. If user exists , display message that
      // username is not available
      console.log(
        "this is the phone and verification code",
        phone,
        phoneVerificationCode
      );
      supplierExists = await Supplier.findOne({
        phone: phone,
        phoneVerified: false,
        phoneVerificationCode: phoneVerificationCode,
      });
      console.log(supplierExists);
      if (supplierExists) {
        // update the phoneVerified flag to true.
        const filter = {
          phone: phone,
          phoneVerificationCode: phoneVerificationCode,
        };
        const update = { phoneVerified: true };
        const doc = await Supplier.findOneAndUpdate(filter, update);
        updatedSupplier = await Supplier.findOne({ phone: phone });
  
        if (updatedSupplier.phoneVerified) {
          reply.send('{"armintatankdata":{"error":false,"verified": true}}');
        } else {
          error = {
            armintatankdata: {
              error: true,
              code: 10005,
              message: "10005 - Verification code entered cannot be validated.",
            },
          };
          req.body.regError = error;
          reply.send(error);
        }
      } else {
        error = {
          armintatankdata: {
            error: true,
            code: 10005,
            message: "10005 - Verification code entered cannot be validated.",
          },
        };
        req.body.regError = error;
        reply.send(error);
      }
    } catch (err) {
      throw boom.boomify(err);
    }
  };


// Get current supplier
exports.getCurrentSupplier = async (req, reply) => {
  try {
    const supplierId = req.body.supplierId;
    const suppliers = await Supplier.findOne({ supplierId: supplierId });
    return suppliers;
  } catch (err) {
    throw boom.boomify(err);
  }
};
// Get all users
exports.getSuppliers = async (req, reply) => {
  const limit = parseInt(req.query.limit) || 100;
  const page = parseInt(req.query.page) || 1;
  const startindex = (page - 1) * limit;
  try {
    await Supplier.find()
      .limit(limit)
      .skip(startindex)
      .exec()
      .then((docs) => {
        reply.send({ status_code: 200, data: docs, count: docs.length });
      })
      .catch((err) => {
        console.log(err);
        reply.send({ error: err });
      });
  } catch (err) {
    throw boom.boomify(err);
  }
};

// Get single user by ID
exports.getSingleSupplier = async (req, reply) => {
  try {
    const supplierId = req.params.supplierId;
    const supplier = await Supplier.findOne({ supplierId: supplierId });
    return supplier;
  } catch (err) {
    throw boom.boomify(err);
  }
};