// Vitest coverage for Phase 20's ship-group action panel. Exercises
// the disabled-with-tooltip rules per action, the implicit-split
// pattern (an action targeting fewer ships than the group holds
// emits a `breakShipGroup` command before the action), and the
// happy-path commits of every variant. The dismantle confirmation
// for foreign-COL groups lives in its own file
// (`inspector-ship-group-dismantle-confirm.test.ts`); the modernize
// cost preview lives in `inspector-ship-group-modernize-cost.test.ts`.

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

import { i18n } from "../src/lib/i18n/index.svelte";
import type {
	ReportLocalFleet,
	ReportLocalShipGroup,
	ReportPlanet,
	ShipClassSummary,
} from "../src/api/game-state";
import ShipGroup, {
	type ShipGroupSelection,
} from "../src/lib/inspectors/ship-group.svelte";
import {
	ORDER_DRAFT_CONTEXT_KEY,
	OrderDraftStore,
} from "../src/sync/order-draft.svelte";
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 type { IDBPDatabase } from "idb";

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

let db: IDBPDatabase<GalaxyDB>;
let dbName: string;
let cache: Cache;
let draft: OrderDraftStore;

const PLANETS: ReportPlanet[] = [
	planet({ number: 17, name: "Castle", x: 100, y: 100, kind: "local" }),
	planet({ number: 99, name: "Outpost", x: 110, y: 110, kind: "other", owner: "Foreign" }),
	planet({ number: 33, name: "Reach", x: 150, y: 150, kind: "uninhabited" }),
];

const SHIP_CLASS_FRONTIER: ShipClassSummary = {
	name: "Frontier",
	drive: 5,
	armament: 0,
	weapons: 0,
	shields: 0,
	cargo: 1,
};

beforeEach(async () => {
	dbName = `galaxy-ship-group-actions-${crypto.randomUUID()}`;
	db = await openGalaxyDB(dbName);
	cache = new IDBCache(db);
	draft = new OrderDraftStore();
	await draft.init({ cache, gameId: GAME_ID });
	i18n.resetForTests("en");
});

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

function planet(
	overrides: Partial<ReportPlanet> & Pick<ReportPlanet, "number" | "name" | "x" | "y" | "kind">,
): ReportPlanet {
	return {
		owner: null,
		size: 1000,
		resources: 5,
		industryStockpile: 100,
		materialsStockpile: 100,
		industry: 100,
		population: 100,
		colonists: 100,
		production: null,
		freeIndustry: 100,
		...overrides,
	};
}

function localGroup(
	overrides: Partial<ReportLocalShipGroup> = {},
): ReportLocalShipGroup {
	return {
		id: "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
		count: 3,
		class: "Frontier",
		tech: { drive: 1, weapons: 0, shields: 0, cargo: 1 },
		cargo: "NONE",
		load: 0,
		destination: 17,
		origin: null,
		range: null,
		speed: 0,
		mass: 12,
		state: "In_Orbit",
		fleet: null,
		...overrides,
	};
}

function mount(
	group: ReportLocalShipGroup,
	options: {
		otherRaces?: string[];
		localFleets?: ReportLocalFleet[];
		localPlayerDrive?: number;
	} = {},
) {
	const selection: ShipGroupSelection = { variant: "local", group };
	const context = new Map<unknown, unknown>([
		[ORDER_DRAFT_CONTEXT_KEY, draft],
	]);
	return render(ShipGroup, {
		props: {
			selection,
			planets: PLANETS,
			localShipClass: [SHIP_CLASS_FRONTIER],
			localFleets: options.localFleets ?? [],
			otherRaces: options.otherRaces ?? ["Aliens"],
			mapWidth: 1000,
			mapHeight: 1000,
			localPlayerDrive: options.localPlayerDrive ?? 5,
			localPlayerWeapons: 1,
			localPlayerShields: 1,
			localPlayerCargo: 2,
		},
		context,
	});
}

describe("ship-group inspector — action enablement", () => {
	test("non-orbit groups disable every action with the busy tooltip", () => {
		const ui = mount(localGroup({ state: "In_Space" }));
		for (const id of [
			"inspector-ship-group-action-split",
			"inspector-ship-group-action-send",
			"inspector-ship-group-action-load",
			"inspector-ship-group-action-unload",
			"inspector-ship-group-action-modernize",
			"inspector-ship-group-action-dismantle",
			"inspector-ship-group-action-transfer",
			"inspector-ship-group-action-join-fleet",
		]) {
			const button = ui.getByTestId(id);
			expect(button).toBeDisabled();
			expect(button.getAttribute("title")).toMatch(/ships are busy/i);
		}
	});

	test("send is disabled when no planet is in drive range", () => {
		const ui = mount(localGroup({ destination: 17 }), { localPlayerDrive: 0 });
		const button = ui.getByTestId("inspector-ship-group-action-send");
		expect(button).toBeDisabled();
		expect(button.getAttribute("title")).toMatch(/no planets are within drive range/i);
	});

	test("transfer is disabled when there are no other races", () => {
		const ui = mount(localGroup(), { otherRaces: [] });
		const button = ui.getByTestId("inspector-ship-group-action-transfer");
		expect(button).toBeDisabled();
		expect(button.getAttribute("title")).toMatch(/no other non-extinct races/i);
	});

	test("unload is disabled when the group carries no cargo", () => {
		const ui = mount(localGroup({ cargo: "NONE", load: 0 }));
		const button = ui.getByTestId("inspector-ship-group-action-unload");
		expect(button).toBeDisabled();
		expect(button.getAttribute("title")).toMatch(/empty/i);
	});

	test("unload of colonists is blocked over a foreign planet", () => {
		const ui = mount(localGroup({ destination: 99, cargo: "COL", load: 1.5 }));
		const button = ui.getByTestId("inspector-ship-group-action-unload");
		expect(button).toBeDisabled();
		expect(button.getAttribute("title")).toMatch(/colonists cannot be unloaded over a foreign planet/i);
	});

	test("load is blocked over a foreign planet", () => {
		const ui = mount(localGroup({ destination: 99 }));
		const button = ui.getByTestId("inspector-ship-group-action-load");
		expect(button).toBeDisabled();
		expect(button.getAttribute("title")).toMatch(/own or unowned planets/i);
	});
});

describe("ship-group inspector — implicit split + action", () => {
	test("split with K=1 of 3 emits a single breakShipGroup", async () => {
		const ui = mount(localGroup({ count: 3 }));
		await fireEvent.click(ui.getByTestId("inspector-ship-group-action-split"));
		const input = ui.getByTestId("inspector-ship-group-form-split-ships") as HTMLInputElement;
		await fireEvent.input(input, { target: { value: "1" } });
		await fireEvent.click(ui.getByTestId("inspector-ship-group-form-split-confirm"));
		await waitFor(() => expect(draft.commands).toHaveLength(1));
		const cmd = draft.commands[0]!;
		expect(cmd.kind).toBe("breakShipGroup");
		if (cmd.kind !== "breakShipGroup") return;
		expect(cmd.groupId).toBe("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
		expect(cmd.quantity).toBe(1);
	});

	test("dismantle on the whole group emits a single dismantleShipGroup", async () => {
		const ui = mount(localGroup({ count: 2 }));
		await fireEvent.click(ui.getByTestId("inspector-ship-group-action-dismantle"));
		await fireEvent.click(ui.getByTestId("inspector-ship-group-form-dismantle-confirm"));
		await waitFor(() => expect(draft.commands).toHaveLength(1));
		const cmd = draft.commands[0]!;
		expect(cmd.kind).toBe("dismantleShipGroup");
		if (cmd.kind !== "dismantleShipGroup") return;
		expect(cmd.groupId).toBe("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
	});

	test("dismantle on a subset emits implicit Break + Dismantle on the new group", async () => {
		const ui = mount(localGroup({ count: 3 }));
		await fireEvent.click(ui.getByTestId("inspector-ship-group-action-dismantle"));
		const input = ui.getByTestId("inspector-ship-group-form-dismantle-ships") as HTMLInputElement;
		await fireEvent.input(input, { target: { value: "2" } });
		await fireEvent.click(ui.getByTestId("inspector-ship-group-form-dismantle-confirm"));
		await waitFor(() => expect(draft.commands).toHaveLength(2));
		const [breakCmd, action] = draft.commands;
		if (breakCmd?.kind !== "breakShipGroup") throw new Error("expected break first");
		if (action?.kind !== "dismantleShipGroup") throw new Error("expected dismantle second");
		expect(breakCmd.groupId).toBe("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
		expect(breakCmd.quantity).toBe(2);
		expect(action.groupId).toBe(breakCmd.newGroupId);
	});

	test("transfer to the only available race emits a transferShipGroup", async () => {
		const ui = mount(localGroup(), { otherRaces: ["Aliens"] });
		await fireEvent.click(ui.getByTestId("inspector-ship-group-action-transfer"));
		await fireEvent.click(ui.getByTestId("inspector-ship-group-form-transfer-confirm"));
		await waitFor(() => expect(draft.commands).toHaveLength(1));
		const cmd = draft.commands[0]!;
		if (cmd.kind !== "transferShipGroup") throw new Error("wrong kind");
		expect(cmd.acceptor).toBe("Aliens");
		expect(cmd.groupId).toBe("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
	});

	test("join fleet with a fresh name emits joinFleetShipGroup", async () => {
		const ui = mount(localGroup());
		await fireEvent.click(ui.getByTestId("inspector-ship-group-action-join-fleet"));
		const input = ui.getByTestId("inspector-ship-group-form-join-fleet-new") as HTMLInputElement;
		await fireEvent.input(input, { target: { value: "Vanguard" } });
		await fireEvent.click(ui.getByTestId("inspector-ship-group-form-join-fleet-confirm"));
		await waitFor(() => expect(draft.commands).toHaveLength(1));
		const cmd = draft.commands[0]!;
		if (cmd.kind !== "joinFleetShipGroup") throw new Error("wrong kind");
		expect(cmd.name).toBe("Vanguard");
		expect(cmd.groupId).toBe("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
	});
});

describe("ship-group inspector — destructive command lock", () => {
	const ALL_ACTION_TESTIDS = [
		"inspector-ship-group-action-split",
		"inspector-ship-group-action-send",
		"inspector-ship-group-action-load",
		"inspector-ship-group-action-unload",
		"inspector-ship-group-action-modernize",
		"inspector-ship-group-action-dismantle",
		"inspector-ship-group-action-transfer",
		"inspector-ship-group-action-join-fleet",
	];

	test("a queued dismantleShipGroup disables every action with the lock tooltip", async () => {
		const groupId = "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa";
		await draft.add({
			kind: "dismantleShipGroup",
			id: crypto.randomUUID(),
			groupId,
		});
		const ui = mount(localGroup({ id: groupId, count: 3, cargo: "MAT", load: 0.5 }));
		const banner = ui.getByTestId("inspector-ship-group-actions-locked");
		expect(banner).toHaveTextContent(/dismantle/i);
		for (const id of ALL_ACTION_TESTIDS) {
			const button = ui.getByTestId(id);
			expect(button).toBeDisabled();
			expect(button.getAttribute("title")).toMatch(/order is already queued/i);
		}
	});

	test("a queued upgradeShipGroup locks the inspector and reports modernize as the kind", async () => {
		const groupId = "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa";
		await draft.add({
			kind: "upgradeShipGroup",
			id: crypto.randomUUID(),
			groupId,
			tech: "ALL",
			level: 0,
		});
		const ui = mount(localGroup({ id: groupId, count: 2 }));
		expect(ui.getByTestId("inspector-ship-group-actions-locked")).toHaveTextContent(
			/modernize/i,
		);
	});

	test("a queued transferShipGroup locks the inspector and reports transfer as the kind", async () => {
		const groupId = "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa";
		await draft.add({
			kind: "transferShipGroup",
			id: crypto.randomUUID(),
			groupId,
			acceptor: "Aliens",
		});
		const ui = mount(localGroup({ id: groupId }));
		expect(ui.getByTestId("inspector-ship-group-actions-locked")).toHaveTextContent(
			/transfer/i,
		);
	});

	test("a queued sendShipGroup does NOT lock the group", async () => {
		const groupId = "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa";
		await draft.add({
			kind: "sendShipGroup",
			id: crypto.randomUUID(),
			groupId,
			destinationPlanetNumber: 99,
		});
		const ui = mount(localGroup({ id: groupId, count: 3 }));
		expect(
			ui.queryByTestId("inspector-ship-group-actions-locked"),
		).toBeNull();
		expect(ui.getByTestId("inspector-ship-group-action-split")).not.toBeDisabled();
	});

	test("a destructive command targeting a different group does not lock this one", async () => {
		await draft.add({
			kind: "dismantleShipGroup",
			id: crypto.randomUUID(),
			groupId: "ffffffff-ffff-ffff-ffff-ffffffffffff",
		});
		const ui = mount(localGroup({ count: 3 }));
		expect(
			ui.queryByTestId("inspector-ship-group-actions-locked"),
		).toBeNull();
	});

	test("removing the destructive command from the draft releases the lock", async () => {
		const groupId = "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa";
		const cmdId = crypto.randomUUID();
		await draft.add({
			kind: "dismantleShipGroup",
			id: cmdId,
			groupId,
		});
		const ui = mount(localGroup({ id: groupId, count: 3 }));
		expect(ui.getByTestId("inspector-ship-group-actions-locked")).toBeInTheDocument();
		await draft.remove(cmdId);
		await waitFor(() => {
			expect(
				ui.queryByTestId("inspector-ship-group-actions-locked"),
			).toBeNull();
		});
		expect(ui.getByTestId("inspector-ship-group-action-split")).not.toBeDisabled();
	});
});