import { Injectable } from '@nestjs/common';
import {
    defaultRandomNumberServiceOptions,
    RandomNumberServiceOptions,
} from './random-number-service-options';
import { Logger } from '@modules/shared/services/logger.service';

@Injectable()
export class RandomNumberService {
    private options: RandomNumberServiceOptions;

    constructor(
        options: Partial<RandomNumberServiceOptions>,
        private readonly logger: Logger,
    ) {
        this.options = Object.assign(
            {},
            defaultRandomNumberServiceOptions,
            options,
        );
    }

    generate(): number {
        this.logger.log(
            `Running the random number service between ${
                this.options.min
            } and ${this.options.max}`,
        );
        const range = this.options.max - this.options.min;
        return this.options.min + Math.floor(Math.random() * range);
    }
}