const config = require('../config');

const mongoose = require('mongoose');

const userSchema = new mongoose.Schema({
    username: String,
    password: String,
    email: String,
    role: String
});

userSchema.method('getPublicObject', function() {
    return {
        username: this.username,
        permissionLevel: config.roleMap[this.role],
        role: this.role,
        _id: this._id
    }
});

userSchema.method('getFullObject', function() {
    return {
        username: this.username,
        password: this.password,
        email: this.email,
        permissionLevel: config.roleMap[this.role],
        role: this.role,
        _id: this._id
    }
});

const User = mongoose.model('User', userSchema);

// NOTE(hippoz): These are all actually material design colors, taken from https://material-ui.com/customization/color/#playground
const colors = [
    '#f44336',
    '#e91e63',
    '#9c27b0',
    '#673ab7',
    '#3f51b5',
    '#2196f3',
    '#03a9f4',
    '#00bcd4',
    '#009688',
    '#4caf50',
    '#8bc34a',
    '#cddc39',
    '#ffeb3b',
    '#ffc107',
    '#ff9800',
    '#ff5722'
];

User.generateColorFromUsername = function(username) {
    let sum = 0;
    for (let i in username) {
        sum += username.charCodeAt(i);
    }
    const colorIndex = sum % colors.length;
    return colors[colorIndex];
};

User.findByUsername = async function(username) {
    return await User.findOne({ username }).exec(); 
};

User.getPulicFields = function() {
    return 'username role _id';
};

module.exports = User;