import { describe, it, expect } from 'vitest';
import { pointDirty, templateDirty, DEFAULT_FLIGHT_PARAMETERS } from '$domain';
import type { FlightParameters, SavedPoint } from '$domain';

const point: SavedPoint = { id: 1, name: 'p', lat: 62.5, lon: 129.5, alt: 100 };
const paramsAt = (lat: number, lon: number, alt: number): FlightParameters => ({
	...DEFAULT_FLIGHT_PARAMETERS,
	launch_latitude: lat,
	launch_longitude: lon,
	launch_altitude: alt
});

describe('pointDirty', () => {
	it('is clean when coordinates match the saved point', () => {
		expect(pointDirty(paramsAt(62.5, 129.5, 100), point)).toBe(false);
	});
	it('is dirty when any coordinate diverges', () => {
		expect(pointDirty(paramsAt(62.5001, 129.5, 100), point)).toBe(true);
		expect(pointDirty(paramsAt(62.5, 129.5, 101), point)).toBe(true);
	});
});

describe('templateDirty', () => {
	it('is clean against an identical copy', () => {
		const tpl = { ...DEFAULT_FLIGHT_PARAMETERS };
		expect(templateDirty({ ...DEFAULT_FLIGHT_PARAMETERS }, tpl)).toBe(false);
	});
	it('is dirty when a parameter changes', () => {
		const tpl = { ...DEFAULT_FLIGHT_PARAMETERS };
		expect(templateDirty({ ...DEFAULT_FLIGHT_PARAMETERS, ascent_rate: 7 }, tpl)).toBe(true);
	});
});