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import { type Snowflake } from 'discord.js';
import { type Sequelize } from 'sequelize';
import { BaseModel } from '../BaseModel.js';
const { DataTypes } = (await import('sequelize')).default;
export interface LevelModel {
user: Snowflake;
guild: Snowflake;
xp: number;
}
export interface LevelModelCreationAttributes {
user: Snowflake;
guild: Snowflake;
xp?: number;
}
/**
* Leveling information for a user in a guild.
*/
export class Level extends BaseModel<LevelModel, LevelModelCreationAttributes> implements LevelModel {
/**
* The user's id.
*/
public declare user: Snowflake;
/**
* The guild where the user is gaining xp.
*/
public declare guild: Snowflake;
/**
* The user's xp.
*/
public declare xp: number;
/**
* The user's level.
*/
public get level(): number {
return Level.convertXpToLevel(this.xp);
}
/**
* Initializes the model.
* @param sequelize The sequelize instance.
*/
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 }
);
}
public static convertXpToLevel(xp: number): number {
return Math.floor((-25 + Math.sqrt(625 + 200 * xp)) / 100);
}
public static convertLevelToXp(level: number): number {
return 50 * level * level + 25 * level; // 50x² + 25x
}
public static genRandomizedXp(): number {
return Math.floor(Math.random() * (40 - 15 + 1)) + 15;
}
}
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