var passport = require('passport'),
    mongoose = require('mongoose'),
    bcrypt = require('bcrypt-nodejs');

var userSchema = mongoose.Schema({
  email: { type: String, required: true, unique: true},
  password: { type: String, required: true}
});

userSchema.pre('save', function(next) {
  var user = this;
  if (!user.isModified('password')) return next();
  bcrypt.genSalt(5, function(err, salt) {
    if (err) return next(err);
    bcrypt.hash(user.password, salt, null, function(err, hash) {
      if (err) return next(err);
      user.password = hash;
      next();
    });
  });
});

userSchema.methods.comparePassword = function(candidatePassword, cb) {
  bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
    if (err) return cb(err);
    cb(null, isMatch);
  });
};


module.exports = mongoose.model('User', userSchema);
