const passwordValidators = [
    {
        validator: passwordLengthChecker,
        message: 'Password must be at least 5 characters but no more than 40'
    },
    {
        validator:validPassword,
        message: 'Must have at least one uppercase, lowercase, special character, and number'
    }
];


/* ========
Schema for user
========= */
const userSchema=new Schema({
    email: { type: String, required: true, unique: true, lowercase: true, validate: emailValidators},
    username: { type: String, required: true, unique: true, lowercase: true, validate: usernameValidators},
    password: { type: String, required: true,validate: passwordValidators},
    bio: { type:String,default:null},
    location: {type:String, default:null},
    gender: {type:String,default:null},
    birthday: { type:Date,default:null},
    img: { type:String, default:null}
});


// Middleware that encrypt password
userSchema.pre('save',function(next){
    if(!this.isModified('password'))
    return next();

    bcrypt.hash(this.password, null, null, (err,hash)=>{
        if(err) return next(err);
        this.password=hash;
        next();
    });
});