export enum Announcement {
	RE = 'Re',
	CONTRA = 'Contra',
	RE_NO_NINETY = 'Re: No ninety',
	CONTRA_NO_NINETY = 'Contra: No ninety',
	RE_NO_SIXTY = 'Re: No sixty',
	CONTRA_NO_SIXTY = 'Contra: No sixty',
	RE_NO_THIRTY = 'Re: No thirty',
	CONTRA_NO_THIRTY = 'Contra: No thirty'
}

/**
 * Returns all available announcement values
 */
export function getAllAnnouncementValues(): Announcement[] {
	return [
		Announcement.RE,
		Announcement.RE_NO_NINETY,
		Announcement.RE_NO_SIXTY,
		Announcement.RE_NO_THIRTY,
		Announcement.CONTRA,
		Announcement.CONTRA_NO_NINETY,
		Announcement.CONTRA_NO_SIXTY,
		Announcement.CONTRA_NO_THIRTY
	];
}

/**
 * Checks if the selected announcements are a valid set of announcements.
 * E.g.: If RE_NO_NINETY is newly selected, RE also has to be selected
 * @param selectedAnnouncements The list of selected announcements
 */
export function checkValidity(selectedAnnouncements: Announcement[]): boolean {
	// First check all "RE" Announcements
	if(selectedAnnouncements.indexOf(Announcement.RE_NO_THIRTY) !== -1) {
		if(selectedAnnouncements.indexOf(Announcement.RE_NO_SIXTY) === -1) {
			return false;
		}
	}
	if(selectedAnnouncements.indexOf(Announcement.RE_NO_SIXTY) !== -1) {
		if(selectedAnnouncements.indexOf(Announcement.RE_NO_NINETY) === -1) {
			return false;
		}
	}
	if(selectedAnnouncements.indexOf(Announcement.RE_NO_NINETY) !== -1) {
		if(selectedAnnouncements.indexOf(Announcement.RE) === -1) {
			return false;
		}
	}

	// Now same for "CONTRA"
	if(selectedAnnouncements.indexOf(Announcement.CONTRA_NO_THIRTY) !== -1) {
		if(selectedAnnouncements.indexOf(Announcement.CONTRA_NO_SIXTY) === -1) {
			return false;
		}
	}
	if(selectedAnnouncements.indexOf(Announcement.CONTRA_NO_SIXTY) !== -1) {
		if(selectedAnnouncements.indexOf(Announcement.CONTRA_NO_NINETY) === -1) {
			return false;
		}
	}
	if(selectedAnnouncements.indexOf(Announcement.CONTRA_NO_NINETY) !== -1) {
		if(selectedAnnouncements.indexOf(Announcement.CONTRA) === -1) {
			return false;
		}
	}

	// all fine, return true
	return true
}

/**
 * Returns the names of the two highest announcements from the given list, one for RE and one for CONTRA if applicable
 * @param selectedAnnouncements The list of announcements to check
 */
export function returnTwoHighestAnnouncements(selectedAnnouncements: Announcement[]): string {
	let finalString: string = '';

	// First check "RE" announcements
	if(selectedAnnouncements.indexOf(Announcement.RE_NO_THIRTY) !== -1) {
		finalString += Announcement.RE_NO_THIRTY;
	} else if (selectedAnnouncements.indexOf(Announcement.RE_NO_SIXTY) !== -1) {
		finalString += Announcement.RE_NO_SIXTY;
	} else if (selectedAnnouncements.indexOf(Announcement.RE_NO_NINETY) !== -1) {
		finalString += Announcement.RE_NO_NINETY;
	} else if (selectedAnnouncements.indexOf(Announcement.RE) !== -1) {
		finalString += Announcement.RE;
	}

	// If there was a "RE" announcement, add a ", " so we can list the CONTRA announcement properly
	if(finalString !== '') {
		finalString += ', ';
	}

	// Now check "CONTRA"
	if(selectedAnnouncements.indexOf(Announcement.CONTRA_NO_THIRTY) !== -1) {
		finalString += Announcement.CONTRA_NO_THIRTY;
	} else if (selectedAnnouncements.indexOf(Announcement.CONTRA_NO_SIXTY) !== -1) {
		finalString += Announcement.CONTRA_NO_SIXTY;
	} else if (selectedAnnouncements.indexOf(Announcement.CONTRA_NO_NINETY) !== -1) {
		finalString += Announcement.CONTRA_NO_NINETY;
	} else if (selectedAnnouncements.indexOf(Announcement.CONTRA) !== -1) {
		finalString += Announcement.CONTRA;
	} else {
		// Remove the last two chars from the finalString (", ")
		finalString = finalString.substring(0, finalString.length-2);
	}

	if(finalString === '') {
		finalString = 'None';
	}

	return finalString;
}