/*
	Neonatal jaundice treatment threshold calculator
	Copyright (C) 2024  Lee Yingtong Li
	
	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Affero General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU Affero General Public License for more details.
	
	You should have received a copy of the GNU Affero General Public License
	along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

// Import bilirubin_lib.js
const fs = require('fs');
eval(fs.readFileSync('src/bilirubin_lib.js').toString());

const assert = require('node:assert');
const { suite, test } = require('node:test');

suite('Hours display', () => {
	test('0 hours', () => {
		assert.equal(prettyPrintHours(0), '0 hours');
		assert.equal(prettyPrintHours(0.2/24), '0 hours');
		assert.equal(prettyPrintHours(0.49/24), '0 hours');
	});
	
	test('1 hour', () => {
		assert.equal(prettyPrintHours(0.5/24), '1 hour');
		assert.equal(prettyPrintHours(1/24), '1 hour');
		assert.equal(prettyPrintHours(1.49/24), '1 hour');
	});
	
	test('2-23 hours', () => {
		for (let h = 2; h <= 23; h++) {
			assert.equal(prettyPrintHours((h - 0.5) / 24), h + ' hours');
			assert.equal(prettyPrintHours(h / 24), h + ' hours');
			assert.equal(prettyPrintHours((h + 0.49) / 24), h + ' hours');
		}
	});
	
	test('>= 24 hours', () => {
		assert.throws(() => prettyPrintHours(23.5/24));
		assert.throws(() => prettyPrintHours(23.99/24));
		assert.throws(() => prettyPrintHours(1));
		assert.throws(() => prettyPrintHours(1.1));
		assert.throws(() => prettyPrintHours(7));
	});
});

suite('Days and hours display', () => {
	test('0 days', () => {
		assert.equal(prettyPrintDays(0), '0 hours');
		assert.equal(prettyPrintDays(0.5/24), '1 hour');
		assert.equal(prettyPrintDays(23.49/24), '23 hours');
	});
	
	test('1 day', () => {
		assert.equal(prettyPrintDays(1), '1 day, 0 hours');
		assert.equal(prettyPrintDays(1 + 0.51/24), '1 day, 1 hour');
		assert.equal(prettyPrintDays(1 + 23.49/24), '1 day, 23 hours');
	});
	
	test('2-14 days', () => {
		for (let d = 2; d <= 14; d++) {
			assert.equal(prettyPrintDays(d), d + ' days, 0 hours');
			assert.equal(prettyPrintDays(d + 0.51/24), d + ' days, 1 hour');
			assert.equal(prettyPrintDays(d + 23.49/24), d + ' days, 23 hours');
		}
	});
});