// Vitest coverage for the F8-10 ship-groups table active view.
// Mounts the component against a synthetic `RenderedReportSource`
// and a real `SelectionStore`; the click → focus contract (planet
// for on-orbit groups, ship-group ref for in-space) is exercised
// directly through the store.

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

import { i18n } from "../src/lib/i18n/index.svelte";
import type {
	GameReport,
	ReportLocalShipGroup,
	ReportOtherShipGroup,
	ReportPlanet,
} from "../src/api/game-state";
import { RENDERED_REPORT_CONTEXT_KEY } from "../src/lib/rendered-report.svelte";
import {
	SELECTION_CONTEXT_KEY,
	SelectionStore,
} from "../src/lib/selection.svelte";
import { activeView } from "../src/lib/app-nav.svelte";
import { resetShipGroupsTableState } from "../src/lib/active-view/table-ship-groups-state.svelte";
import { EMPTY_SHIP_GROUPS } from "./helpers/empty-ship-groups";

const pageMock = vi.hoisted(() => ({
	url: new URL("http://localhost/games/g1/table/ship-groups"),
	params: { id: "g1" } as Record<string, string>,
}));

const gotoMock = vi.hoisted(() => vi.fn());

vi.mock("$app/state", () => ({
	page: pageMock,
}));

vi.mock("$app/navigation", () => ({
	goto: gotoMock,
	pushState: vi.fn(),
	replaceState: vi.fn(),
}));

import TableShipGroups from "../src/lib/active-view/table-ship-groups.svelte";

let selection: SelectionStore;

beforeEach(() => {
	selection = new SelectionStore();
	i18n.resetForTests("en");
	pageMock.params = { id: "g1" };
	gotoMock.mockClear();
	activeView.reset();
	resetShipGroupsTableState();
});

afterEach(() => {
	selection.dispose();
});

function planet(num: number, name?: string): ReportPlanet {
	return {
		number: num,
		name: name ?? `P${num}`,
		x: 0,
		y: 0,
		kind: "local",
		owner: null,
		size: null,
		resources: null,
		industryStockpile: null,
		materialsStockpile: null,
		industry: null,
		population: null,
		colonists: null,
		production: null,
		freeIndustry: null,
	};
}

function localGroup(
	overrides: Partial<ReportLocalShipGroup> &
		Pick<ReportLocalShipGroup, "id" | "class" | "destination">,
): ReportLocalShipGroup {
	return {
		state: "In_Orbit",
		fleet: null,
		count: 1,
		tech: { drive: 0, weapons: 0, shields: 0, cargo: 0 },
		cargo: "NONE",
		load: 0,
		origin: null,
		range: null,
		speed: 0,
		mass: 0,
		race: "Me",
		...overrides,
	};
}

function otherGroup(
	overrides: Partial<ReportOtherShipGroup> &
		Pick<ReportOtherShipGroup, "class" | "destination" | "race">,
): ReportOtherShipGroup {
	return {
		count: 1,
		tech: { drive: 0, weapons: 0, shields: 0, cargo: 0 },
		cargo: "NONE",
		load: 0,
		origin: null,
		range: null,
		speed: 0,
		mass: 0,
		...overrides,
	};
}

function makeReport(opts: {
	planets?: ReportPlanet[];
	local?: ReportLocalShipGroup[];
	other?: ReportOtherShipGroup[];
}): GameReport {
	return {
		turn: 1,
		mapWidth: 1000,
		mapHeight: 1000,
		planetCount: opts.planets?.length ?? 0,
		planets: opts.planets ?? [],
		race: "Me",
		localShipClass: [],
		routes: [],
		localPlayerDrive: 0,
		localPlayerWeapons: 0,
		localPlayerShields: 0,
		localPlayerCargo: 0,
		...EMPTY_SHIP_GROUPS,
		localShipGroups: opts.local ?? [],
		otherShipGroups: opts.other ?? [],
	};
}

function mount(report: GameReport | null) {
	const renderedReport = {
		get report() {
			return report;
		},
	};
	const context = new Map<unknown, unknown>([
		[RENDERED_REPORT_CONTEXT_KEY, renderedReport],
		[SELECTION_CONTEXT_KEY, selection],
	]);
	return render(TableShipGroups, { context });
}

describe("ship-groups table", () => {
	test("renders a loading placeholder before the report lands", () => {
		const ui = mount(null);
		expect(ui.getByTestId("ship-groups-loading")).toBeInTheDocument();
	});

	test("renders an empty placeholder when no groups are present", () => {
		const ui = mount(makeReport({ planets: [planet(1)] }));
		expect(ui.getByTestId("ship-groups-empty")).toBeInTheDocument();
	});

	test("renders local and foreign rows under one table", () => {
		const ui = mount(
			makeReport({
				planets: [planet(1), planet(2)],
				local: [localGroup({ id: "L1", class: "Cruiser", destination: 1 })],
				other: [
					otherGroup({ class: "Hunter", destination: 2, race: "Klingon" }),
				],
			}),
		);
		const rows = ui.getAllByTestId("ship-groups-row");
		expect(rows).toHaveLength(2);
		const owners = rows.map((r) => r.getAttribute("data-owner"));
		expect(owners.sort()).toEqual(["foreign", "own"]);
	});

	test("owner checkboxes filter independently", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(1), planet(2)],
				local: [localGroup({ id: "L1", class: "Cruiser", destination: 1 })],
				other: [
					otherGroup({ class: "Hunter", destination: 2, race: "Klingon" }),
				],
			}),
		);
		await fireEvent.click(ui.getByTestId("ship-groups-filter-foreign"));
		const owners = ui
			.getAllByTestId("ship-groups-row")
			.map((r) => r.getAttribute("data-owner"));
		expect(owners).toEqual(["own"]);
	});

	test("planet dropdown filters by destination OR origin", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(1), planet(2), planet(3)],
				local: [
					localGroup({ id: "L1", class: "C", destination: 1 }),
					localGroup({
						id: "L2",
						class: "C",
						destination: 3,
						origin: 2,
						range: 4,
						state: "In_Space",
					}),
					localGroup({ id: "L3", class: "C", destination: 3 }),
				],
			}),
		);
		const sel = ui.getByTestId(
			"ship-groups-filter-planet",
		) as HTMLSelectElement;
		await fireEvent.change(sel, { target: { value: "2" } });
		// only L2 touches planet 2 (origin === 2)
		const keys = ui
			.getAllByTestId("ship-groups-row")
			.map((r) => r.getAttribute("data-key"));
		expect(keys).toEqual(["local:L2"]);
	});

	test("class dropdown filters by class name", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(1)],
				local: [
					localGroup({ id: "L1", class: "Cruiser", destination: 1 }),
					localGroup({ id: "L2", class: "Drone", destination: 1 }),
				],
			}),
		);
		const sel = ui.getByTestId(
			"ship-groups-filter-class",
		) as HTMLSelectElement;
		await fireEvent.change(sel, { target: { value: "Drone" } });
		const keys = ui
			.getAllByTestId("ship-groups-row")
			.map((r) => r.getAttribute("data-key"));
		expect(keys).toEqual(["local:L2"]);
	});

	test("click on on-planet group focuses the destination planet", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(7)],
				local: [localGroup({ id: "L1", class: "Cruiser", destination: 7 })],
			}),
		);
		await fireEvent.click(ui.getByTestId("ship-groups-row"));
		expect(selection.selected).toEqual({ kind: "planet", id: 7 });
		expect(selection.consumePendingFocus()).toEqual({
			kind: "planet",
			id: 7,
		});
		expect(activeView.view).toBe("map");
	});

	test("click on in-space local group focuses the ship-group ref", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(1), planet(2)],
				local: [
					localGroup({
						id: "L1",
						class: "Cruiser",
						destination: 2,
						origin: 1,
						range: 3,
						state: "In_Space",
					}),
				],
			}),
		);
		await fireEvent.click(ui.getByTestId("ship-groups-row"));
		expect(selection.selected).toEqual({
			kind: "shipGroup",
			ref: { variant: "local", id: "L1" },
		});
		expect(selection.consumePendingFocus()).toEqual({
			kind: "shipGroup",
			ref: { variant: "local", id: "L1" },
		});
		expect(activeView.view).toBe("map");
	});

	test("planet/class dropdowns narrow to the owner-checkbox cut", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(1), planet(2), planet(3)],
				local: [localGroup({ id: "L1", class: "Cruiser", destination: 1 })],
				other: [
					otherGroup({ class: "Hunter", destination: 3, race: "Klingon" }),
				],
			}),
		);
		// All four planet options available when both owner kinds are on
		const planetSelect = ui.getByTestId(
			"ship-groups-filter-planet",
		) as HTMLSelectElement;
		const valuesFull = Array.from(planetSelect.options).map((o) => o.value);
		expect(valuesFull).toContain("1");
		expect(valuesFull).toContain("3");
		// Hide foreign rows; planet 3 (only touched by Klingon) disappears
		await fireEvent.click(ui.getByTestId("ship-groups-filter-foreign"));
		const valuesNarrowed = Array.from(planetSelect.options).map((o) => o.value);
		expect(valuesNarrowed).toContain("1");
		expect(valuesNarrowed).not.toContain("3");
		// Class dropdown narrows too: Hunter disappears
		const classSelect = ui.getByTestId(
			"ship-groups-filter-class",
		) as HTMLSelectElement;
		const classValues = Array.from(classSelect.options).map((o) => o.value);
		expect(classValues).not.toContain("Hunter");
		expect(classValues).toContain("Cruiser");
	});

	test("click on in-space foreign group focuses other variant by index", async () => {
		const ui = mount(
			makeReport({
				planets: [planet(1), planet(2)],
				other: [
					otherGroup({
						class: "Hunter",
						destination: 2,
						origin: 1,
						range: 5,
						race: "Klingon",
					}),
				],
			}),
		);
		await fireEvent.click(ui.getByTestId("ship-groups-row"));
		expect(selection.selected).toEqual({
			kind: "shipGroup",
			ref: { variant: "other", index: 0 },
		});
		expect(activeView.view).toBe("map");
	});
});