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import { Snowflake } from 'discord.js';
import { DataTypes, Sequelize } from 'sequelize';
import { BaseModel } from './BaseModel';
export interface LevelModel {
user: Snowflake;
guild: Snowflake;
xp: number;
}
export interface LevelModelCreationAttributes {
user: Snowflake;
guild: Snowflake;
xp?: number;
}
const NEVER_USED = 'This should never be executed';
export class Level extends BaseModel<LevelModel, LevelModelCreationAttributes> {
/**
* The user's id.
*/
public get user(): Snowflake {
throw new Error(NEVER_USED);
}
public set user(_: Snowflake) {
throw new Error(NEVER_USED);
}
/**
* The guild where the user is gaining xp.
*/
public get guild(): Snowflake {
throw new Error(NEVER_USED);
}
public set guild(_: Snowflake) {
throw new Error(NEVER_USED);
}
/**
* The user's xp.
*/
public get xp(): number {
throw new Error(NEVER_USED);
}
public set xp(_: number) {
throw new Error(NEVER_USED);
}
/**
* The user's level.
*/
public get level(): number {
return Level.convertXpToLevel(this.xp);
}
public static initModel(sequelize: Sequelize): void {
Level.init(
{
user: {
type: DataTypes.STRING,
allowNull: false
},
guild: {
type: DataTypes.STRING,
allowNull: false
},
xp: {
type: DataTypes.INTEGER,
allowNull: false,
defaultValue: 0
}
},
{ sequelize: sequelize }
);
}
static convertXpToLevel(xp: number): number {
let i = 1;
let lvl: number;
// eslint-disable-next-line no-constant-condition
while (true) {
const neededXp = Level.convertLevelToXp(i);
if (neededXp > xp) {
lvl = i;
break;
} else {
i++;
}
}
return lvl - 1; // I have to do this don't question it ok
}
static convertLevelToXp(level: number): number {
let xp = 0;
for (let i = 0; i < level; i++) {
xp += 100 * i + 75;
}
return xp;
}
static genRandomizedXp(): number {
return Math.floor(Math.random() * (40 - 15 + 1)) + 15;
}
}
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