// Component coverage for the Phase 14 order-tab submit flow. Drives
// the tab against an in-memory `OrderDraftStore`, a synthetic
// `GalaxyClient`, and a stubbed `GameStateStore.refresh`. Every
// case asserts both the rendered DOM (status badges, button state)
// and the side effect on the draft store (per-command status flips).

import "@testing-library/jest-dom/vitest";
import "fake-indexeddb/auto";
import { fireEvent, render, waitFor } from "@testing-library/svelte";
import { Builder } from "flatbuffers";
import { afterEach, beforeEach, describe, expect, test, vi } from "vitest";

import OrderTab from "../src/lib/sidebar/order-tab.svelte";
import {
	ORDER_DRAFT_CONTEXT_KEY,
	OrderDraftStore,
} from "../src/sync/order-draft.svelte";
import {
	GAME_STATE_CONTEXT_KEY,
	GameStateStore,
} from "../src/lib/game-state.svelte";
import {
	GALAXY_CLIENT_CONTEXT_KEY,
	GalaxyClientHolder,
} from "../src/lib/galaxy-client-context.svelte";
import { i18n } from "../src/lib/i18n/index.svelte";
import { uuidToHiLo } from "../src/api/game-state";
import type { GalaxyClient } from "../src/api/galaxy-client";
import type { OrderCommand } from "../src/sync/order-types";
import { IDBCache } from "../src/platform/store/idb-cache";
import { openGalaxyDB, type GalaxyDB } from "../src/platform/store/idb";
import type { Cache } from "../src/platform/store/index";
import { UUID } from "../src/proto/galaxy/fbs/common";
import {
	CommandItem,
	CommandPayload,
	CommandPlanetRename,
	UserGamesOrderResponse,
} from "../src/proto/galaxy/fbs/order";

const GAME_ID = "11111111-2222-3333-4444-555555555555";

let db: Awaited<ReturnType<typeof openGalaxyDB>>;
let dbName: string;
let cache: Cache;

beforeEach(async () => {
	dbName = `galaxy-order-tab-${crypto.randomUUID()}`;
	db = await openGalaxyDB(dbName);
	cache = new IDBCache(db);
	i18n.resetForTests("en");
});

afterEach(async () => {
	db.close();
	await new Promise<void>((resolve) => {
		const req = indexedDB.deleteDatabase(dbName);
		req.onsuccess = () => resolve();
		req.onerror = () => resolve();
		req.onblocked = () => resolve();
	});
});

interface Setup {
	context: Map<unknown, unknown>;
	draft: OrderDraftStore;
	gameState: GameStateStore;
	clientHolder: GalaxyClientHolder;
	exec: ReturnType<typeof vi.fn>;
	refresh: ReturnType<typeof vi.fn>;
}

function buildResponse(
	commands: { id: string; applied: boolean | null; errorCode: number | null }[],
	updatedAt: number,
): Uint8Array {
	const builder = new Builder(256);
	const itemOffsets = commands.map((c) => {
		const cmdIdOffset = builder.createString(c.id);
		const nameOffset = builder.createString("ignored");
		const inner = CommandPlanetRename.createCommandPlanetRename(
			builder,
			BigInt(0),
			nameOffset,
		);
		CommandItem.startCommandItem(builder);
		CommandItem.addCmdId(builder, cmdIdOffset);
		if (c.applied !== null) CommandItem.addCmdApplied(builder, c.applied);
		if (c.errorCode !== null) {
			CommandItem.addCmdErrorCode(builder, BigInt(c.errorCode));
		}
		CommandItem.addPayloadType(builder, CommandPayload.CommandPlanetRename);
		CommandItem.addPayload(builder, inner);
		return CommandItem.endCommandItem(builder);
	});
	const commandsVec = UserGamesOrderResponse.createCommandsVector(
		builder,
		itemOffsets,
	);
	const [hi, lo] = uuidToHiLo(GAME_ID);
	const gameIdOffset = UUID.createUUID(builder, hi, lo);
	UserGamesOrderResponse.startUserGamesOrderResponse(builder);
	UserGamesOrderResponse.addGameId(builder, gameIdOffset);
	UserGamesOrderResponse.addUpdatedAt(builder, BigInt(updatedAt));
	UserGamesOrderResponse.addCommands(builder, commandsVec);
	const offset = UserGamesOrderResponse.endUserGamesOrderResponse(builder);
	builder.finish(offset);
	return builder.asUint8Array();
}

async function makeSetup(commands: OrderCommand[]): Promise<Setup> {
	const draft = new OrderDraftStore();
	await draft.init({ cache, gameId: GAME_ID });
	for (const cmd of commands) {
		await draft.add(cmd);
	}
	const gameState = new GameStateStore();
	gameState.gameId = GAME_ID;
	gameState.status = "ready";
	const refresh = vi.fn(async () => {});
	gameState.refresh = refresh as unknown as typeof gameState.refresh;
	const clientHolder = new GalaxyClientHolder();
	const exec = vi.fn(async (_messageType: string, _payload: Uint8Array) => ({
		resultCode: "ok",
		payloadBytes: buildResponse(
			commands.map((cmd) => ({
				id: cmd.id,
				applied: true,
				errorCode: null,
			})),
			17,
		),
	}));
	clientHolder.set({ executeCommand: exec } as unknown as GalaxyClient);
	const context = new Map<unknown, unknown>([
		[ORDER_DRAFT_CONTEXT_KEY, draft],
		[GAME_STATE_CONTEXT_KEY, gameState],
		[GALAXY_CLIENT_CONTEXT_KEY, clientHolder],
	]);
	return { context, draft, gameState, clientHolder, exec, refresh };
}

describe("order-tab", () => {
	test("renders the empty state when the draft has no commands", async () => {
		const { context } = await makeSetup([]);
		const ui = render(OrderTab, { context });
		expect(ui.getByTestId("order-empty")).toBeVisible();
		expect(ui.queryByTestId("order-submit")).toBeNull();
	});

	test("Submit is disabled when every entry is invalid", async () => {
		const { context } = await makeSetup([
			{ kind: "planetRename", id: "id-1", planetNumber: 1, name: "" },
		]);
		const ui = render(OrderTab, { context });
		const submit = ui.getByTestId("order-submit");
		expect(submit).toBeDisabled();
		expect(ui.getByTestId("order-command-status-0")).toHaveTextContent(
			"invalid",
		);
	});

	test("Submit posts every valid command and applies returned statuses", async () => {
		const { context, draft, exec, refresh } = await makeSetup([
			{ kind: "planetRename", id: "id-1", planetNumber: 1, name: "Earth" },
		]);
		const ui = render(OrderTab, { context });
		const submit = ui.getByTestId("order-submit");
		expect(submit).not.toBeDisabled();
		expect(ui.getByTestId("order-command-status-0")).toHaveTextContent("valid");

		await fireEvent.click(submit);

		await waitFor(() => {
			expect(draft.statuses["id-1"]).toBe("applied");
		});
		expect(exec).toHaveBeenCalledTimes(1);
		expect(refresh).toHaveBeenCalledTimes(1);
		expect(ui.getByTestId("order-command-status-0")).toHaveTextContent(
			"applied",
		);
	});

	test("Non-ok response marks every submitting entry as rejected", async () => {
		const { context, draft, refresh } = await makeSetup([
			{ kind: "planetRename", id: "id-1", planetNumber: 1, name: "Earth" },
		]);
		const exec = vi.fn(async () => ({
			resultCode: "invalid_request",
			payloadBytes: new TextEncoder().encode(
				JSON.stringify({ code: "boom", message: "down" }),
			),
		}));
		const holder = context.get(GALAXY_CLIENT_CONTEXT_KEY) as GalaxyClientHolder;
		holder.set({ executeCommand: exec } as unknown as GalaxyClient);

		const ui = render(OrderTab, { context });
		await fireEvent.click(ui.getByTestId("order-submit"));

		await waitFor(() => {
			expect(draft.statuses["id-1"]).toBe("rejected");
		});
		expect(refresh).not.toHaveBeenCalled();
		expect(ui.getByTestId("order-submit-error")).toHaveTextContent("down");
	});

	test("Already-applied entries do not get re-submitted", async () => {
		const { context, draft, exec } = await makeSetup([
			{ kind: "planetRename", id: "id-1", planetNumber: 1, name: "Earth" },
		]);
		draft.markSubmitting(["id-1"]);
		draft.applyResults({
			results: new Map([["id-1", "applied"] as const]),
			updatedAt: 1,
		});

		const ui = render(OrderTab, { context });
		const submit = ui.getByTestId("order-submit");
		expect(submit).toBeDisabled();
		expect(exec).not.toHaveBeenCalled();
	});
});