import {
  hashPassword,
  verifyPassword,
} from '../utils/helpers/hashPasswordHelpers';

const mongoose = require('mongoose');
const validator = require('validator');

const UserSchema = new mongoose.Schema({
  fullName: {
    type: String,
    required: [true, 'Please provide a name.'],
    maxlength: [60, 'Name cannot be more than 60 characters'],
    trim: true,
  },
  username: {
    type: String,
    required: [true, 'Please provide a name.'],
    maxlength: [60, 'Name cannot be more than 60 characters'],
    trim: true,
    unique: true,
  },
  email: {
    type: String,
    unique: true,
    required: true,
    trim: true,
    lowercase: true,
    validate(value) {
      if (!validator.isEmail(value)) {
        throw new Error('Email is invalid');
      }
    },
  },
  password: {
    type: String,
    required: true,
    minlength: 7,
    trim: true,
    validate(value) {
      if (value.toLowerCase().includes('password')) {
        throw new Error('Password cannot contain "password"');
      }
    },
  },
});

UserSchema.statics.findByCredentials = async (username, password) => {
  const user = await User.findOne({ username });

  if (!user) {
    throw new Error('Unable to login');
  }

  const isMatch = await verifyPassword(password, user.password);

  if (!isMatch) {
    throw new Error('Unable to login');
  }

  return user;
};

UserSchema.pre('save', async function (next) {
  const user = this;

  if (user.isModified('password')) {
    user.password = await hashPassword(user.password);
  }

  next();
});

const User = mongoose.models.User || mongoose.model('User', UserSchema);
module.exports = User;