var mongoose    = require("mongoose");
var Schema      = mongoose.Schema;
var constants   = require("../config/constants");
var bcrypt      = require("bcrypt-nodejs");


var UserSchema = new Schema({
    name: String,
    email: String,
    password: String,
    authorization:
    {
        type: Number,
        default: constants.authorization.default
    }
});

UserSchema.pre("save", (next) => {
    var user = this;

    /**
     * Only hash the password when it's been modified or if new.
     */

    // #####################################################
    // ERROR
    // if (!query.isModified("password"))
    //            ^
    // TypeError: query.isModified is not a function
    //
    // user and this == {}
    // ####################################################
    if (!user.isModified("password"))
    {
        return next();
    }

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

        user.password = hash;
        return next();
    });
});

// #####################################################
// ERROR
// user.verifyPassword(req.body.password, match => {
//     ^
// TypeError: user.verifyPassword is not a function
//
// this == {}
// ####################################################
UserSchema.methods.verifyPassword = (reqPassword, callback) => {
    bcrypt.compare(reqPassword, this.password, (err, match) => {
        var e = null;
        var m = match;

        if (err)
        {
            e = err;
            m = false;
        }

        return callback(e, m);
    });
};



module.exports = mongoose.model("User", UserSchema);