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var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var ClientSchema = new Schema(
  {
    email: { type: String, required: true, unique: true },
    company: { type: Schema.Types.ObjectId, ref: 'Company' },
    lastname: String,
    firstname: String,
    phone: String,
    cell: String,
    title: String,
  },
  { timestamps: true },
);

/*
 *** Statics ***
 */

// Get all clients
ClientSchema.statics.getAll = () => {
  return new Promise((resolve, reject) => {
    var query = Client.find().populate('company', '-_id name');
    query.select('email lastname firstname phone cell title');
    query
      .exec()
      .then(rows => {
        resolve(rows);
      })
      .catch(err => {
        reject(err);
      });
  });
};

// Create client
ClientSchema.statics.create = (client, company) => {
  return new Promise(async (resolve, reject) => {
    if (company) {
      var Company = mongoose.model('Company');
      var query = Company.findOneAndUpdate(
        { name: company },
        {},
        { upsert: true, new: true },
      );
      var companyRow = await query.exec();
      if (companyRow) client.company = companyRow._id;
    }
    var query = new Client(client);
    query
      .save(company)
      .then(row => {
        resolve({
          _id: row._id,
          email: row.email,
          firstname: row.firstname,
          lastname: row.lastname,
          title: row.title,
          phone: row.phone,
          cell: row.cell,
          company: row.company,
        });
      })
      .catch(err => {
        if (err.code === 11000)
          reject({
            fn: 'BadParameters',
            message: 'Client email already exists',
          });
        else reject(err);
      });
  });
};

// Update client
ClientSchema.statics.update = (clientId, client, company) => {
  return new Promise(async (resolve, reject) => {
    if (company) {
      var Company = mongoose.model('Company');
      var query = Company.findOneAndUpdate(
        { name: company },
        {},
        { upsert: true, new: true },
      );
      var companyRow = await query.exec();
      if (companyRow) client.company = companyRow.id;
    }
    var query = Client.findOneAndUpdate({ _id: clientId }, client);
    query
      .exec()
      .then(rows => {
        if (rows) resolve(rows);
        else reject({ fn: 'NotFound', message: 'Client Id not found' });
      })
      .catch(err => {
        if (err.code === 11000)
          reject({
            fn: 'BadParameters',
            message: 'Client email already exists',
          });
        else reject(err);
      });
  });
};

// Delete client
ClientSchema.statics.delete = clientId => {
  return new Promise((resolve, reject) => {
    var query = Client.findOneAndDelete({ _id: clientId });
    query
      .exec()
      .then(rows => {
        if (rows) resolve(rows);
        else reject({ fn: 'NotFound', message: 'Client Id not found' });
      })
      .catch(err => {
        reject(err);
      });
  });
};

/*
 *** Methods ***
 */

var Client = mongoose.model('Client', ClientSchema);
module.exports = Client;