import { NativeDateAdapter } from '@angular/material';


export class LocalizedDateAdapter extends NativeDateAdapter {

	parse(value: any): Date | null {
		const invalidDate = new Date(NaN);
		if (typeof value === 'string') {
			if (value === '') { return null; } else {
				const splitted = value.split('/');
				if (splitted.length !== 3) { return invalidDate; } else {
					const day = Number(splitted[0]);
					const month = Number(splitted[1]) - 1;
					const year = Number(splitted[2]);

					if (day < 1 || day > 31 || month < 0 || month > 11 || year < 1 || year > 9999) { return invalidDate; }

					return new Date(year, month, day);
				}
			}
		} else {
			const dateValue = typeof value === 'number' ? value : Date.parse(value);
			return isNaN(dateValue) ? invalidDate : new Date(dateValue);
		}
	}

}