import { test, expect, login } from './fixtures';

/**
 * Task 6 verification: end-to-end polar behaviour against the REAL stack.
 *
 * Unlike the rest of the suite, this spec expects Django on :8000 and the Go
 * predictor on :8080 with a loaded GFS dataset (./run-stack.py). It drives a
 * launch at high latitude through the UI, then reads back the coordinates the
 * globe actually rendered — the numbers the predictor returned, not synthetic
 * ones.
 *
 * Run with:
 *   npx playwright test tests/e2e/polar.spec.ts --reporter=list
 */

const MERCATOR_LIMIT = 85.051129;

/**
 * Must be reached as localhost, not 127.0.0.1. Django's CSRF_TRUSTED_ORIGINS
 * defaults to `http://localhost:5173`, so a 127.0.0.1 origin gets 403 on any
 * POST (including /api/predictions/). run-stack.py binds Vite to 127.0.0.1 and
 * does not set CSRF_TRUSTED_ORIGINS, so the trusted spelling is the one to use.
 */
test.use({ baseURL: 'http://localhost:5173' });

/** Seed one workspace whose launch point sits at the given latitude. */
async function seedLaunch(page: import('@playwright/test').Page, lat: number, lng: number) {
	await page.goto('/');
	await page.evaluate(
		({ lat, lng }) => {
			const ws = {
				id: crypto.randomUUID(),
				name: `polar-${lat}`,
				color: '#dc3545',
				opacity: 1,
				visible: true,
				flightParameters: {
					ascent_rate: 5.0,
					burst_altitude: 30000.0,
					dataset: '',
					descent_rate: 5.0,
					format: 'json',
					launch_altitude: 0.0,
					launch_latitude: lat,
					launch_longitude: lng,
					profile: 'standard_profile',
					version: 2,
				},
				launchDate: new Date().toISOString().split('T')[0],
				launchTime: '12:00:00',
				result: null,
				bboxMargin: 10,
				bboxVisible: false,
			};
			localStorage.setItem('workspaces', JSON.stringify({ items: [ws], activeId: ws.id }));
		},
		{ lat, lng },
	);
}

/** Every latitude Cesium is holding in a rendered workspace polyline. */
function renderedLatitudes(page: import('@playwright/test').Page): Promise<number[]> {
	return page.evaluate(() => {
		/* eslint-disable @typescript-eslint/no-explicit-any */
		const viewer: any = (window as any)._lsvMap;
		if (!viewer?.entities) return [];
		const Cartographic: any = viewer.camera.positionCartographic.constructor;
		const out: number[] = [];
		for (const e of viewer.entities.values) {
			if (typeof e.id !== 'string' || !e.id.startsWith('ws/')) continue;
			const positions = e.polyline?.positions?.getValue?.(viewer.clock.currentTime);
			if (!positions) continue;
			for (const p of positions) {
				out.push((Cartographic.fromCartesian(p).latitude * 180) / Math.PI);
			}
		}
		return out;
		/* eslint-enable @typescript-eslint/no-explicit-any */
	});
}

/**
 * This spec needs the real predictor + Django, unlike the rest of the suite
 * which runs against the mock plugin. Probe for it and skip rather than fail
 * confusingly when only the mock dev server is up.
 */
let stackUp = false;

test.beforeAll(async () => {
	try {
		const res = await fetch('http://127.0.0.1:8080/ready');
		stackUp = res.ok;
	} catch {
		stackUp = false;
	}
});

test.beforeEach(async ({ context }) => {
	test.skip(!stackUp, 'requires the real stack — start it with ./run-stack.py');
	await login(context);
});

for (const lat of [89.5, 89.99]) {
	test(`polar launch at ${lat}N renders unclamped on the globe`, async ({ page }) => {
		test.setTimeout(180_000);

		await seedLaunch(page, lat, 0.1);
		await page.goto('/predict');
		await page
			.locator('.map-container canvas')
			.first()
			.waitFor({ state: 'attached', timeout: 60_000 });

		await page
			.locator('.panel-container-right')
			.locator('.workspace-row')
			.first()
			.getByRole('button', { name: /Рассчитать|Run/ })
			.click();

		// Wait for the real predictor round-trip to paint something.
		await expect
			.poll(async () => (await renderedLatitudes(page)).length, {
				timeout: 150_000,
				intervals: [2000, 3000, 5000],
			})
			.toBeGreaterThan(0);

		const lats = await renderedLatitudes(page);
		const maxLat = Math.max(...lats);
		// eslint-disable-next-line no-console
		console.log(
			`  [${lat}N] vertices=${lats.length} max=${maxLat.toFixed(5)} min=${Math.min(...lats).toFixed(5)}`,
		);

		// Nothing may be NaN, and the track must reach above the Mercator ceiling
		// that the previous renderer could not represent.
		expect(lats.every((v) => Number.isFinite(v))).toBe(true);
		expect(maxLat).toBeGreaterThan(MERCATOR_LIMIT);
		// And no vertex may sit exactly on the old clamp value, which would mean
		// something re-introduced Mercator tiling.
		expect(lats.some((v) => Math.abs(v - MERCATOR_LIMIT) < 1e-6)).toBe(false);

		// Nothing on /predict auto-frames the result (fitBounds is only wired on
		// the tracking page), so frame the track's own bounds to capture it —
		// the same Rectangle maths CesiumMap.fitBounds uses.
		await page.evaluate(() => {
			/* eslint-disable @typescript-eslint/no-explicit-any */
			const v: any = (window as any)._lsvMap;
			const Cartographic: any = v.camera.positionCartographic.constructor;
			const Rectangle: any = v.camera.computeViewRectangle().constructor;
			const lats: number[] = [];
			const lngs: number[] = [];
			for (const e of v.entities.values) {
				if (typeof e.id !== 'string' || !e.id.startsWith('ws/')) continue;
				const ps = e.polyline?.positions?.getValue?.(v.clock.currentTime);
				if (!ps) continue;
				for (const p of ps) {
					const c = Cartographic.fromCartesian(p);
					lats.push((c.latitude * 180) / Math.PI);
					lngs.push((c.longitude * 180) / Math.PI);
				}
			}
			const rect = Rectangle.fromDegrees(
				Math.min(...lngs),
				Math.min(...lats),
				Math.max(...lngs),
				Math.max(...lats),
			);
			v.camera.flyTo({ destination: rect, duration: 0 });
			/* eslint-enable @typescript-eslint/no-explicit-any */
		});
		// Let the camera move and tile streaming settle before capturing.
		await page.waitForTimeout(6000);
		const cam = await page.evaluate(() => {
			/* eslint-disable @typescript-eslint/no-explicit-any */
			const v: any = (window as any)._lsvMap;
			const c = v.camera.positionCartographic;
			return {
				lng: (c.longitude * 180) / Math.PI,
				lat: (c.latitude * 180) / Math.PI,
				height: c.height,
				tilesLoaded: v.scene.globe.tilesLoaded,
			};
			/* eslint-enable @typescript-eslint/no-explicit-any */
		});
		// eslint-disable-next-line no-console
		console.log(`  [${lat}N] camera ${JSON.stringify(cam)}`);
		await page.screenshot({ path: `test-results/polar-${lat}N.png`, fullPage: false });
	});
}