import { Assert, text } from '@rsdk/common';

import type { PropertyParser } from '../../types';

export class ArrayParser<T> implements PropertyParser<T[]> {
  constructor(
    private readonly singleValueParser: PropertyParser<T>,
    private readonly options = { separator: ',' },
  ) {}

  type(): string {
    return `(array)${this.singleValueParser.type()}`;
  }

  description(): string {
    return text`
      Extracts array of values. If raw value is a string
      <${this.options.separator}> will used as separator. Each value:
      ${this.singleValueParser.description()}
    `;
  }

  parse(value: unknown): T[] {
    if (Array.isArray(value)) {
      return value.map((x) => this.singleValueParser.parse(x));
    }

    Assert.isString(value);

    return value
      .split(this.options.separator)
      .map((x) => this.singleValueParser.parse(x));
  }
}