const User = require('../models/user/User')
const v_m = require('../validation_messages')
const {body, validationResult} = require('express-validator')
const dateformat = require('dateformat')
const bcrypt = require('bcryptjs')
const crypto = require('crypto')
const jwt = require('jsonwebtoken')
const config = require('../config')
const nodemailer = require('nodemailer')

/////////////////////////////////////////////////////////////////////// register
module.exports.register = [
   [
      body('first_name')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.first_name
         })
         .bail()
         .isLength({min: 2})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min2
         }),

      body('last_name')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.last_name
         })
         .bail()
         .isLength({min: 2})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min2
         }),

      body('company_name')
         .if((value, {req}) => req.body.type === 'company')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.company_name
         }),

      body('email_personal')
         .if((value, {req}) => req.body.type === 'personal')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.email_personal
         }),

      body('email_personal')
         .if(body('email_personal').notEmpty())
         .isEmail()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.email
         })
         .custom((value, {req}) => {
            return User.findOne({$or: [{email_personal: value}, {email_company: value}]})
               .then(user => {
                  if (user) return Promise.reject(v_m[req.body.locale].duplicated.email)
                  else return true
               })
         }),

      body('email_company')
         .if((value, {req}) => req.body.type === 'company')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.email_company
         })
         .bail()
         .isEmail()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.email
         })
         .custom((value, {req}) => {
            return User.findOne({$or: [{email_personal: value}, {email_company: value}]})
               .then(user => {
                  if (user) return Promise.reject(v_m[req.body.locale].duplicated.email)
                  else return true
               })
         }),

      body('password')
         .isLength({min: 4})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min4
         }),

      body('phone_number')
         .isNumeric()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.phone_number
         }),

      body('password_confirmation')
         .isLength({min: 4})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min4
         })
         .bail()
         .custom((value, {req}) => {
            if (value !== req.body.password) return Promise.reject(v_m[req.body.locale].required.password_confirmation)
            else return true
         })
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

      const data = {}
      data.first_name = req.body.first_name
      data.last_name = req.body.last_name
      data.type = req.body.type
      data.company_name = req.body.company_name
      data.email_personal = req.body.email_personal
      data.email_company = req.body.email_company
      data.fb_id_personal = req.body.fb_id_personal
      data.fb_id_company = req.body.fb_id_company
      data.ig_id_personal = req.body.ig_id_personal
      data.ig_id_company = req.body.ig_id_company
      data.skype_id_personal = req.body.skype_id_personal
      data.skype_id_company = req.body.skype_id_company
      data.phone_number = req.body.phone_number
      data.scope = 'user'
      data.created_at = dateformat(Date.now(), 'yyyy-mm-dd HH:MM:ss')


      // generate activation key
      let confirmation_key
      crypto.randomBytes(20, async (err, hash) => {
         if (err) console.log(err)
         confirmation_key = hash.toString('hex')
         data.confirmation_key = confirmation_key

         let transporter = nodemailer.createTransport({
            host: "www.rubynaturalco.com",
            port: 587,
            secure: false, // true for 465, false for other ports
            auth: {
               user: 'recovery@rubynaturalco.com',
               pass: 'jd-m2?3ao?b('
            },
            tls: {
               rejectUnauthorized: false
            }
         })

         // send mail with defined transport object
         let info = await transporter.sendMail({
            from: '"Hima Co." <recovery@rubynaturalco.com>', // sender address
            to: req.body.type === 'personal' ? req.body.email_personal : req.body.email_company, // list of receivers
            subject: "Activation Link",
            text: 'Active your account',
            html: `
                  <h1>You just registered an account on <b style="color: #784fae;">Hima Website</b></h1>
                  <p>to activate your account click link below:</p>
                  <a href="https://www.rubynaturalco.com/en/account/activation/${confirmation_key}"
                  target="_blank"
                  style="display: inline-block;font-family: sans-serif;padding: 15px;background: #784fae;color: #fff;border-radius: 5px;margin-top: 20px;">Active Account</a>
               `
         })

         // hash user password and done
         bcrypt.genSalt(10, (err, salt) => {
            bcrypt.hash(req.body.password, salt, (err, hash) => {
               if (err) console.log(err)
               data.password = hash

               const user = new User(data)
               user.save(err => {
                  if (err) console.log(err)
                  return res.json({message: v_m[req.body.locale].response.success_save})
               })
            })
         })
      })
   }
]

/////////////////////////////////////////////////////////////////////// active user
module.exports.activation = [
   (req, res) => {
      User.findOne({confirmation_key: req.params.key})
         .then(user => {
            if (user) {
               user.confirmation_key = null
               user.confirmed = true
               user.save(err => {
                  if (err) console.log(err)
                  return res.json({message: v_m[req.body.locale].response.success_activation})
               })
            } else {
               return res.status(404).json({message: v_m[req.body.locale].response.expired_activation_link})
            }
         })
         .catch(err => {
            return res.status(500).json(err)
         })
   }
]

/////////////////////////////////////////////////////////////////////// login
module.exports.login = [
   [
      body('email')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.email
         })
         .custom((value, {req}) => {
            return User.findOne({$or: [{email_personal: value}, {email_company: value}]})
               .then(user => {
                  if (!user) return Promise.reject(v_m[req.body.locale].not_found.user_id)
                  else return true
               })
         }),

      body('password')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.password
         }),

      body('remember_me')
         .exists()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.remember_me
         })
         .bail()
         .isBoolean()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.boolean
         })
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})


      User.findOne({$or: [{email_personal: req.body.email}, {email_company: req.body.email}]}, (err, user) => {
         if (err) console.log(err)
         if (!user.confirmed) return res.status(401).json({message: v_m[req.body.locale].response.email_not_confirmed})
         bcrypt.compare(req.body.password, user.password, (err, isMatch) => {
            if (err) console.log(err)
            if (!isMatch) return res.status(422).json({validation: {password: {msg: v_m[req.body.locale].not_found.password}}})
            let token
            if (req.body.remember_me) token = jwt.sign({_id: user._id}, config.secretKey)
            else token = jwt.sign({_id: user._id}, config.secretKey, {expiresIn: '1h'})

            user.token = token
            user.reset_pass_key = null
            user.save(err => {
               if (err) console.log(err)
            })
            return res.json({token: token})
         })
      })
   }
]

/////////////////////////////////////////////////////////////////////// logout
module.exports.logout = [
   (req, res) => {
      const token = req.headers.authorization
      if (token) {
         User.findOneAndUpdate({token: token}, {token: null}, (err, oldData) => {
            if (err) console.log(err)
            if (oldData) return res.json({message: v_m['en'].response.logged_out})
            return res.status(401).json({message: v_m['en'].response.not_logged_in})
         })
      } else {
         return res.status(401).json({message: v_m['en'].response.not_logged_in})
      }
   }
]

/////////////////////////////////////////////////////////////////////// get user
module.exports.getUser = [
   config.isUser,
   (req, res) => {
      const token = req.headers.authorization
      if (token) {
         jwt.verify(token, config.secretKey, (err, decoded) => {
            if (err) return res.status(401).json({message: v_m['en'].response.unauthenticated})
            User.findById(decoded._id).select('-password -reset_pass_key -token -confirmed -confirmation_key').exec((err, data) => {
               if (err) console.log(err)
               return res.json({user: data})
            })
         })
      } else {
         return res.status(401).json({message: v_m['en'].response.unauthenticated})
      }
   }
]

/////////////////////////////////////////////////////////////////////// reset password key generator
module.exports.resetPassKey = [
   [
      body('email')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.email
         })
         .bail()
         .isEmail()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.email
         })
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

      User.findOne({$or: [{email_personal: req.body.email}, {email_company: req.body.email}]})
         .then(user => {
            if (user) {
               let pass_token
               crypto.randomBytes(20, async (err, hash) => {
                  if (err) console.log(err)
                  pass_token = hash.toString('hex')
                  user.reset_pass_key = pass_token
                  await user.save(err => {
                     if (err) console.log(err)
                  })

                  let transporter = nodemailer.createTransport({
                     host: "www.rubynaturalco.com",
                     port: 587,
                     secure: false, // true for 465, false for other ports
                     auth: {
                        user: 'recovery@rubynaturalco.com',
                        pass: 'jd-m2?3ao?b('
                     },
                     tls: {
                        rejectUnauthorized: false
                     }
                  })

                  // send mail with defined transport object
                  let info = await transporter.sendMail({
                     from: '"Hima Co." <recovery@rubynaturalco.com>', // sender address
                     to: req.body.email, // list of receivers
                     subject: "Reset Password Link",
                     text: 'Reset your password',
                     html: `
                  <h1>You asked to reset your account password on <b style="color: #784fae;">Hima Website</b></h1>
                  <p>to reset your password click on link blow, then enter new password:</p>
                  <a href="https://www.rubynaturalco.com/en/account/new-password/${pass_token}"
                  target="_blank"
                  style="display: inline-block;font-family: sans-serif;padding: 15px;background: #784fae;color: #fff;border-radius: 5px;margin-top: 20px;">Reset Password</a>
               `
                  })

                  // Message sent: <b658f8ca-6296-ccf4-8306-87d57a0b4321@example.com>
                  return res.json({message: v_m[req.body.locale].response.recovery_link})
               })
            } else {
               return res.status(404).json({message: v_m[req.body.locale].not_found.user_id})
            }
         })
         .catch(err => {
            return res.status(500).json(err)
         })
   }
]

/////////////////////////////////////////////////////////////////////// set new password
module.exports.setNewPass = [
   [
      body('password')
         .isLength({min: 4})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min4
         })
      ,

      body('password_confirmation')
         .isLength({min: 4})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min4
         })
         .bail()
         .custom((value, {req}) => {
            if (value !== req.body.password) return Promise.reject(v_m[req.body.locale].required.password_confirmation)
            else return true
         })
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

      User.findOne({reset_pass_key: req.params.key})
         .then(user => {
            if (user) {
               bcrypt.genSalt(10, (err, salt) => {
                  bcrypt.hash(req.body.password, salt, (err, hash) => {
                     if (err) console.log(err)
                     user.password = hash
                     user.reset_pass_key = null
                     user.save(err => {
                        if (err) console.log(err)
                     })
                     return res.json({message: v_m[req.body.locale].response.success_save})
                  })
               })
            } else {
               return res.status(404).json({message: v_m[req.body.locale].response.expired_reset_link})
            }
         })
         .catch(err => {
            return res.status(500).json(err)
         })
   }
]

/////////////////////////////////////////////////////////////////////// update user
module.exports.updateUser = [
   [
      body('first_name')
         .isLength({min: 2})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min2
         }),

      body('last_name')
         .isLength({min: 2})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min2
         }),

      body('email_personal')
         .if((value, {req}) => req.body.type === 'personal')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.email_personal
         }),

      body('email_personal')
         .if(body('email_personal').notEmpty())
         .isEmail()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.email
         }),

      body('phone_number')
         .isNumeric()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.phone_number
         }),

      body('email_company')
         .if((value, {req}) => req.body.type === 'company')
         .notEmpty()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].required.email_company
         })
         .bail()
         .isEmail()
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].format.email
         }),
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

      const token = req.headers.authorization
      const data = {}
      data.first_name = req.body.first_name
      data.last_name = req.body.last_name
      data.email_personal = req.body.email_personal
      data.fb_id_personal = req.body.fb_id_personal
      data.ig_id_personal = req.body.ig_id_personal
      data.skype_id_personal = req.body.skype_id_personal
      data.phone_number = req.body.phone_number
      data.updated_at = dateformat(Date.now(), 'yyyy-mm-dd HH:MM:ss')

      if (req.body.type === 'company') {
         data.skype_id_company = req.body.skype_id_company
         data.ig_id_company = req.body.ig_id_company
         data.fb_id_company = req.body.fb_id_company
         data.email_company = req.body.email_company
         data.company_name = req.body.company_name
      }
      User.findOneAndUpdate({token: token}, data)
         .then(user => {
            return res.json({message: v_m[req.body.locale].response.success_save})
         })
         .catch(err => {
            return res.status(401).json({message: v_m[req.body.locale].response.unauthenticated})
         })
   }
]

/////////////////////////////////////////////////////////////////////// update user password
module.exports.updateUserPassword = [
   [
      body('password')
         .isLength({min: 4})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min4
         }),

      body('password_confirmation')
         .isLength({min: 4})
         .withMessage((value, {req}) => {
            return v_m[req.body.locale].min_char.min4
         })
         .bail()
         .custom((value, {req}) => {
            if (value !== req.body.password) return Promise.reject(v_m[req.body.locale].required.password_confirmation)
            else return true
         })
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

      const token = req.headers.authorization
      User.findOne({token: token})
         .then(user => {
            bcrypt.genSalt(10, (err, salt) => {
               if (err) console.log(err)
               bcrypt.hash(req.body.password, salt, (err, hash) => {
                  if (err) console.log(err)
                  user.password = hash
                  user.token = null
                  user.save(err => {
                     if (err) console.log(err)
                     return res.json({message: v_m[req.body.locale].response.success_save})
                  })
               })
            })
         })
         .catch(err => {
            return res.status(404).json(err)
         })
   }
]

/////////////////////////////////////////////////////////////////////// addresses
module.exports.addAdress = [
   [
      body('user_id')
         .custom((value, {req}) => {
            return User.findById(value)
               .then(user => {
                  return true
               })
               .catch(err => {
                  return Promise.reject(v_m[req.body.locale].not_found.user_id)
               })
         }),

      body('country')
         .if(body('country').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.country)
         }),

      body('province')
         .if(body('province').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.province)
         }),

      body('city')
         .if(body('city').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.city)
         }),

      body('address')
         .if(body('address').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.address)
         }),

      body('postal_code')
         .if(body('postal_code').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.postal_code)
         }),

      body('plaque')
         .if(body('plaque').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.plaque)
         }),

      body('receiver_first_name')
         .if(body('receiver_first_name').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.receiver_first_name)
         }),

      body('receiver_last_name')
         .if(body('receiver_last_name').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.receiver_last_name)
         }),

      body('receiver_mobile')
         .if(body('receiver_mobile').isEmpty())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].required.receiver_mobile)
         }),

      body('receiver_mobile')
         .if(body('receiver_mobile').notEmpty())
         .if(body('receiver_mobile').not().isNumeric())
         .custom((value, {req}) => {
            return Promise.reject(v_m[req.body.locale].format.phone_number)
         })
   ],
   (req, res) => {
      const errors = validationResult(req)
      if (!errors.isEmpty()) return res.status(422).json({validation: errors.mapped()})

      const data = {
         country: req.body.country,
         province: req.body.province,
         city: req.body.city,
         address: req.body.address,
         postal_code: req.body.postal_code,
         plaque: req.body.plaque,
         block_number: req.body.block_number,
         receiver_first_name: req.body.receiver_first_name,
         receiver_last_name: req.body.receiver_last_name,
         receiver_mobile: req.body.receiver_mobile,
         created_at: dateformat(Date.now(), 'yyyy-mm-dd HH:MM:ss')
      }

      User.findById(req.body.user_id)
         .then(user => {
            user.addresses.push(data)
            user.save()
            return res.json(user.addresses)
         })
         .catch(err => {
            console.log(err)
         })
   }
]

module.exports.getAddresses = [
   (req, res) => {
      User.findById(req.params.user_id)
         .then(user => {
            return res.json(user.addresses)
         })
         .catch(err => {
            return res.status(404).json({message: v_m['en'].not_found.user_id})
         })
   }
]

module.exports.deleteAddress = [
   (req, res) => {
      User.findOne({'addresses._id': req.params.address_id})
         .then(user => {
            user.addresses.id(req.params.address_id).remove()
            user.save()
            return res.json({message: v_m['en'].response.success_remove})
         })
         .catch(err => {
            console.log(err)
         })
   }
]

/////////////////////////////////////////////////////////////////////// get list of users by admin
module.exports.getAllUsers = [
   (req, res) => {
      User.find({confirmed: true}).select('-token -password -scope -reset_pass_key -confirmed -confirmation_key').exec((err, users) => {
         if (err) console.log(err)
         return res.json(users)
      })
   }
]

module.exports.getOneUser = [
   (req, res) => {
      User.findById(req.params.user_id).select('-token -password -scope -reset_pass_key -confirmed -confirmation_key').exec((err, user) => {
         if (err) return res.status(404).json(err)
         return res.json(user)
      })
   }
]