import { parceable } from '../Schema'
import SchemaItem from '../SchemaItem'

export default class SchemaBoolean extends SchemaItem<boolean> {

	/**
	 * @param [trueValue='true'] the truhty value (default to `'true'`)
	 * @param [falseValue='false'] the falthy value (default to `'false'`)
	 */
	@parceable()
	public parseString(trueValue = 'true', falseValue = 'false'): this {
		this.addPreProcess((it) => {
			if (typeof it !== 'string') {
				return it
			}
			if (it === trueValue) {
				return true
			}
			if (it === falseValue) {
				return false
			}
			return it
		})
		return this
	}

	public override isOfType(input: unknown): input is boolean {
		return typeof input === 'boolean'
	}
}