// Phase 15 end-to-end coverage for the planet-production flow. Boots
// an authenticated session, mocks the lobby + report + order routes
// (including a seeded `Scout` ship class so the Build-Ship branch is
// reachable), drives a click into the renderer to select a planet,
// then walks the segmented control through three production choices.
// The final assertion verifies that the order tab carries exactly
// one row at all times (the collapse-by-`planetNumber` rule), that
// the gateway received the latest choice, and that the row survives
// a reload via `user.games.order.get`.

import { fromJson, type JsonValue } from "@bufbuild/protobuf";
import { expect, test, type Page } from "@playwright/test";
import { ByteBuffer } from "flatbuffers";

import { ExecuteCommandRequestSchema } from "../../src/proto/galaxy/gateway/v1/edge_gateway_pb";
import { UUID } from "../../src/proto/galaxy/fbs/common";
import {
	CommandPlanetProduce,
	PlanetProduction,
	UserGamesOrder,
	UserGamesOrderGet,
} from "../../src/proto/galaxy/fbs/order";
import { GameReportRequest } from "../../src/proto/galaxy/fbs/report";
import { forgeExecuteCommandResponseJson } from "./fixtures/sign-response";
import {
	buildMyGamesListPayload,
	type GameFixture,
} from "./fixtures/lobby-fbs";
import { buildReportPayload } from "./fixtures/report-fbs";
import {
	buildOrderGetResponsePayload,
	buildOrderResponsePayload,
	type CommandResultFixture,
} from "./fixtures/order-fbs";

const SESSION_ID = "phase-15-production-session";
const GAME_ID = "15151515-1515-1515-1515-151515151515";
const WORLD = 4000;
const CENTRE = WORLD / 2;
const TURN = 5;
const SHIP_CLASS = "Scout";

interface MockHandle {
	get lastSubmitted(): {
		productionType: PlanetProduction;
		subject: string;
		planetNumber: number;
	} | null;
	get submitCount(): number;
}

async function mockGateway(page: Page): Promise<MockHandle> {
	const game: GameFixture = {
		gameId: GAME_ID,
		gameName: "Phase 15 Game",
		gameType: "private",
		status: "running",
		ownerUserId: "user-1",
		minPlayers: 2,
		maxPlayers: 8,
		enrollmentEndsAtMs: BigInt(Date.now() + 86_400_000),
		createdAtMs: BigInt(Date.now() - 86_400_000),
		updatedAtMs: BigInt(Date.now()),
		currentTurn: TURN,
	};

	let storedOrder: CommandResultFixture[] = [];
	let lastReportProduction = "Drive";
	let lastSubmitted: {
		productionType: PlanetProduction;
		subject: string;
		planetNumber: number;
	} | null = null;
	let submitCount = 0;

	await page.route(
		"**/galaxy.gateway.v1.EdgeGateway/ExecuteCommand",
		async (route) => {
			const reqText = route.request().postData();
			if (reqText === null) {
				await route.fulfill({ status: 400 });
				return;
			}
			const req = fromJson(
				ExecuteCommandRequestSchema,
				JSON.parse(reqText) as JsonValue,
			);

			let resultCode = "ok";
			let payload: Uint8Array;
			switch (req.messageType) {
				case "lobby.my.games.list":
					payload = buildMyGamesListPayload([game]);
					break;
				case "user.games.report": {
					GameReportRequest.getRootAsGameReportRequest(
						new ByteBuffer(req.payloadBytes),
					).gameId(new UUID());
					payload = buildReportPayload({
						turn: TURN,
						mapWidth: WORLD,
						mapHeight: WORLD,
						localPlanets: [
							{
								number: 17,
								name: "Earth",
								x: CENTRE,
								y: CENTRE,
								size: 1000,
								resources: 10,
								capital: 0,
								material: 0,
								population: 850,
								colonists: 25,
								industry: 700,
								production: lastReportProduction,
								freeIndustry: 175,
							},
						],
						localShipClass: [{ name: SHIP_CLASS }],
					});
					break;
				}
				case "user.games.order": {
					const decoded = UserGamesOrder.getRootAsUserGamesOrder(
						new ByteBuffer(req.payloadBytes),
					);
					submitCount += 1;
					const length = decoded.commandsLength();
					const fixtures: CommandResultFixture[] = [];
					for (let i = 0; i < length; i++) {
						const item = decoded.commands(i);
						if (item === null) continue;
						const cmdId = item.cmdId() ?? "";
						const inner = new CommandPlanetProduce();
						item.payload(inner);
						const productionType = inner.production();
						const subject = inner.subject() ?? "";
						const planetNumber = Number(inner.number());
						lastSubmitted = { productionType, subject, planetNumber };
						fixtures.push({
							kind: "setProductionType",
							cmdId,
							planetNumber,
							productionType: planetProductionToLiteral(productionType),
							subject,
							applied: true,
							errorCode: null,
						});
					}
					storedOrder = fixtures;
					if (lastSubmitted !== null) {
						lastReportProduction = displayFromSubmitted(lastSubmitted);
					}
					payload = buildOrderResponsePayload(GAME_ID, fixtures, Date.now());
					break;
				}
				case "user.games.order.get": {
					UserGamesOrderGet.getRootAsUserGamesOrderGet(
						new ByteBuffer(req.payloadBytes),
					);
					payload = buildOrderGetResponsePayload(
						GAME_ID,
						storedOrder,
						Date.now(),
						storedOrder.length > 0,
					);
					break;
				}
				default:
					resultCode = "internal_error";
					payload = new Uint8Array();
			}

			const body = await forgeExecuteCommandResponseJson({
				requestId: req.requestId,
				timestampMs: BigInt(Date.now()),
				resultCode,
				payloadBytes: payload,
			});
			await route.fulfill({
				status: 200,
				contentType: "application/json",
				body,
			});
		},
	);

	await page.route(
		"**/galaxy.gateway.v1.EdgeGateway/SubscribeEvents",
		async () => {
			await new Promise<void>(() => {});
		},
	);

	return {
		get lastSubmitted() {
			return lastSubmitted;
		},
		get submitCount() {
			return submitCount;
		},
	};
}

async function bootSession(page: Page): Promise<void> {
	await page.goto("/__debug/store");
	await expect(page.getByTestId("debug-store-ready")).toBeVisible();
	await page.waitForFunction(() => window.__galaxyDebug?.ready === true);
	await page.evaluate(() => window.__galaxyDebug!.clearSession());
	await page.evaluate(
		(id) => window.__galaxyDebug!.setDeviceSessionId(id),
		SESSION_ID,
	);
	await page.evaluate(
		(gameId) => window.__galaxyDebug!.clearOrderDraft(gameId),
		GAME_ID,
	);
}

async function clickPlanetCentre(page: Page): Promise<void> {
	const canvas = page.locator("canvas");
	const box = await canvas.boundingBox();
	expect(box).not.toBeNull();
	if (box === null) throw new Error("canvas has no bounding box");
	await page.mouse.click(box.x + box.width / 2, box.y + box.height / 2);
}

function planetProductionToLiteral(
	value: PlanetProduction,
): "MAT" | "CAP" | "DRIVE" | "WEAPONS" | "SHIELDS" | "CARGO" | "SCIENCE" | "SHIP" {
	switch (value) {
		case PlanetProduction.MAT:
			return "MAT";
		case PlanetProduction.CAP:
			return "CAP";
		case PlanetProduction.DRIVE:
			return "DRIVE";
		case PlanetProduction.WEAPONS:
			return "WEAPONS";
		case PlanetProduction.SHIELDS:
			return "SHIELDS";
		case PlanetProduction.CARGO:
			return "CARGO";
		case PlanetProduction.SCIENCE:
			return "SCIENCE";
		case PlanetProduction.SHIP:
			return "SHIP";
		default:
			throw new Error(`unexpected production enum ${value}`);
	}
}

function displayFromSubmitted(value: {
	productionType: PlanetProduction;
	subject: string;
}): string {
	switch (value.productionType) {
		case PlanetProduction.MAT:
			return "Material";
		case PlanetProduction.CAP:
			return "Capital";
		case PlanetProduction.DRIVE:
			return "Drive";
		case PlanetProduction.WEAPONS:
			return "Weapons";
		case PlanetProduction.SHIELDS:
			return "Shields";
		case PlanetProduction.CARGO:
			return "Cargo";
		case PlanetProduction.SCIENCE:
		case PlanetProduction.SHIP:
			return value.subject;
		default:
			return "";
	}
}

test("switching production three times collapses to one auto-synced row", async ({
	page,
}, testInfo) => {
	test.skip(
		testInfo.project.name.startsWith("chromium-mobile"),
		"phase 15 spec covers desktop layout; mobile inherits the same store",
	);

	const handle = await mockGateway(page);
	await bootSession(page);
	await page.goto(`/games/${GAME_ID}/map`);
	await expect(page.getByTestId("active-view-map")).toHaveAttribute(
		"data-status",
		"ready",
	);

	await clickPlanetCentre(page);
	const sidebar = page.getByTestId("sidebar-tool-inspector");
	await expect(sidebar.getByTestId("inspector-planet-name")).toHaveText("Earth");

	// Initial state: report.production = "Drive" → research segment is
	// active, sub-row reveals Drive as the highlighted tech.
	await expect(
		sidebar.getByTestId("inspector-planet-production-segment-research"),
	).toHaveClass(/active/);

	// Click 1: Industry → CAP
	await sidebar
		.getByTestId("inspector-planet-production-segment-industry")
		.click();
	await page.getByTestId("sidebar-tab-order").click();
	const orderTool = page.getByTestId("sidebar-tool-order");
	await expect(orderTool.getByTestId("order-list").locator("li")).toHaveCount(
		1,
	);
	await expect(orderTool.getByTestId("order-command-label-0")).toContainText(
		"Capital",
	);
	await expect(orderTool.getByTestId("order-command-status-0")).toHaveText(
		"applied",
	);

	// Click 2: Materials → MAT (replaces CAP via collapse)
	await page.getByTestId("sidebar-tab-inspector").click();
	await sidebar
		.getByTestId("inspector-planet-production-segment-materials")
		.click();
	await page.getByTestId("sidebar-tab-order").click();
	await expect(orderTool.getByTestId("order-list").locator("li")).toHaveCount(
		1,
	);
	await expect(orderTool.getByTestId("order-command-label-0")).toContainText(
		"Material",
	);

	// Click 3: Build Ship → expand sub-row → Scout (replaces MAT)
	await page.getByTestId("sidebar-tab-inspector").click();
	await sidebar
		.getByTestId("inspector-planet-production-segment-ship")
		.click();
	await sidebar
		.getByTestId(`inspector-planet-production-ship-${SHIP_CLASS}`)
		.click();
	await page.getByTestId("sidebar-tab-order").click();
	await expect(orderTool.getByTestId("order-list").locator("li")).toHaveCount(
		1,
	);
	await expect(orderTool.getByTestId("order-command-label-0")).toContainText(
		SHIP_CLASS,
	);
	await expect(orderTool.getByTestId("order-sync")).toHaveAttribute(
		"data-sync-status",
		"synced",
	);

	expect(handle.lastSubmitted).not.toBeNull();
	expect(handle.lastSubmitted!.planetNumber).toBe(17);
	expect(handle.lastSubmitted!.productionType).toBe(PlanetProduction.SHIP);
	expect(handle.lastSubmitted!.subject).toBe(SHIP_CLASS);
	expect(handle.submitCount).toBeGreaterThanOrEqual(3);

	// Reload: the layout polls user.games.order.get on boot, so the
	// row is restored from the server's stored state even when the
	// local cache is wiped.
	await page.reload();
	await expect(page.getByTestId("active-view-map")).toHaveAttribute(
		"data-status",
		"ready",
	);
	await page.getByTestId("sidebar-tab-order").click();
	await expect(orderTool.getByTestId("order-list").locator("li")).toHaveCount(
		1,
	);
	await expect(orderTool.getByTestId("order-command-label-0")).toContainText(
		SHIP_CLASS,
	);
});