node-mongo-demo

lucky7-bet.js

(1468B)

 import mongoose from 'mongoose';
 import { randomInt } from 'crypto';
 
 const lucky7BetSchema = mongoose.Schema({
     userId: { type: 'ObjectId', ref: 'User', required: true },
     rollAt: { type: Date, required: true },
     lucky: { type: Boolean, required: true },
     roll: { type: [Number], required: true },
 }, {
     timestamps: true,
     optimisticConcurrency: true,
     virtuals: {
         state: {
             get() {
                 return Date.now() < this.rollAt ? 'pending' : 'finished';
             },
         },
         win: {
             get() {
                 if (!this.played()) return undefined;
 
                 const seven = 7 === this.roll[0] + this.roll[1];
                 return (this.lucky && seven) || (!this.lucky && !seven);
             },
         },
     },
     methods: {
         played() {
             return Boolean(this.roll?.length === 2);
         },
         play() {
             this.roll = [randomInt(1,7), randomInt(1,7)];
         },
         toRedactedObject() {
             const { id, rollAt, lucky, roll, win, state } = this;
             return {
                 id,
                 state,
                 rollAt,
                 lucky,
                 roll: state === 'finished' ? roll : undefined,
                 win: state === 'finished' ? win : undefined,
             };
         },
     },
 });
 
 lucky7BetSchema.index({ userId: 1, rollAt: -1 }, { unique: true });
 
 export default mongoose.model('Lucky7Bet', lucky7BetSchema);