// Vitest coverage for the "stationed ship groups" subsection of the
// planet inspector. The map deliberately hides on-planet groups; this
// subsection is the player's view of the fleets in orbit.
//
// F8-05 (issue #48 п.32) moved the race column from the row into a
// dropdown above the table. The dropdown only renders when more than
// one race is stationed; it seeds with the player's own race when
// local groups are stationed here, otherwise with the first race
// alphabetically. Single-race cases skip the dropdown and render
// straight through. The race column is dropped in both modes — the
// dropdown's value already names the active race.

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

import { i18n } from "../src/lib/i18n/index.svelte";
import type {
	ReportLocalShipGroup,
	ReportOtherShipGroup,
	ReportPlanet,
} from "../src/api/game-state";
import ShipGroups from "../src/lib/inspectors/planet/ship-groups.svelte";

beforeEach(() => {
	i18n.resetForTests("en");
});

const HOME_PLANET: ReportPlanet = {
	number: 17,
	name: "Castle",
	x: 100,
	y: 100,
	kind: "local",
	owner: null,
	size: 1000,
	resources: 10,
	industryStockpile: 0,
	materialsStockpile: 0,
	industry: 1000,
	population: 1000,
	colonists: 100,
	production: "Capital",
	freeIndustry: 1000,
};

const FOREIGN_PLANET: ReportPlanet = {
	...HOME_PLANET,
	number: 99,
	name: "Outpost",
	kind: "other",
	owner: "Klingons",
};

function localGroup(
	overrides: Partial<ReportLocalShipGroup> = {},
): ReportLocalShipGroup {
	return {
		id: "uuid-1",
		count: 1,
		class: "Frontier",
		tech: { drive: 5, 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 otherGroup(
	overrides: Partial<ReportOtherShipGroup> = {},
): ReportOtherShipGroup {
	return {
		count: 3,
		class: "Bird-of-Prey",
		tech: { drive: 6, weapons: 4, shields: 3, cargo: 0 },
		cargo: "NONE",
		load: 0,
		destination: 99,
		origin: null,
		range: null,
		speed: 0,
		mass: 25,
		...overrides,
	};
}

describe("planet inspector — stationed ship groups", () => {
	test("renders one row per in-orbit local group; the dropdown is hidden with a single race", () => {
		const ui = render(ShipGroups, {
			props: {
				planet: HOME_PLANET,
				localShipGroups: [
					localGroup({ id: "g1", count: 2, class: "Frontier", mass: 24 }),
					localGroup({ id: "g2", count: 7, class: "Furgon", mass: 173.25 }),
				],
				otherShipGroups: [],
				localRace: "Earthlings",
			},
		});
		const rows = ui.getAllByTestId("inspector-planet-ship-groups-row");
		expect(rows.length).toBe(2);
		// Race no longer appears in the row (it is hoisted to the
		// dropdown — and the dropdown itself is hidden when only one
		// race is present).
		expect(
			ui.queryByTestId("inspector-planet-ship-groups-race-filter"),
		).toBeNull();
		expect(rows[0]).not.toHaveTextContent("Earthlings");
		expect(rows[0]).toHaveTextContent("Frontier");
		expect(rows[0]).toHaveTextContent("2");
		expect(rows[0]).toHaveTextContent("24");
		expect(rows[1]).toHaveTextContent("Furgon");
		expect(rows[1]).toHaveTextContent("173.25");
	});

	test("multiple races surface a dropdown that filters the table", async () => {
		const ui = render(ShipGroups, {
			props: {
				planet: FOREIGN_PLANET,
				localShipGroups: [
					localGroup({ id: "own-1", destination: 99, class: "Frontier" }),
				],
				otherShipGroups: [
					otherGroup({ class: "Bird-of-Prey", destination: 99 }),
				],
				localRace: "Earthlings",
			},
		});
		const select = ui.getByTestId(
			"inspector-planet-ship-groups-race-filter",
		) as HTMLSelectElement;
		// Own ships are stationed → own race wins as the default;
		// alphabetical ordering puts the foreign one second.
		expect(select.value).toBe("Earthlings");
		expect(Array.from(select.options).map((o) => o.value)).toEqual([
			"Earthlings",
			"Klingons",
		]);
		expect(
			ui.getAllByTestId("inspector-planet-ship-groups-row").length,
		).toBe(1);
		expect(
			ui.getByTestId("inspector-planet-ship-groups-row"),
		).toHaveTextContent("Frontier");

		await fireEvent.change(select, { target: { value: "Klingons" } });
		const rows = ui.getAllByTestId("inspector-planet-ship-groups-row");
		expect(rows.length).toBe(1);
		expect(rows[0]).toHaveTextContent("Bird-of-Prey");
	});

	test("with no own ships the dropdown collapses to the single foreign race", () => {
		const ui = render(ShipGroups, {
			props: {
				planet: {
					...HOME_PLANET,
					owner: "Andorians",
					kind: "other",
				},
				localShipGroups: [],
				otherShipGroups: [
					otherGroup({ class: "Bird-of-Prey", destination: 17 }),
				],
				localRace: "Earthlings",
			},
		});
		// Single foreign race → no dropdown.
		expect(
			ui.queryByTestId("inspector-planet-ship-groups-race-filter"),
		).toBeNull();
		expect(
			ui.getAllByTestId("inspector-planet-ship-groups-row").length,
		).toBe(1);
	});

	test("filters out groups stationed on a different planet", () => {
		const ui = render(ShipGroups, {
			props: {
				planet: HOME_PLANET,
				localShipGroups: [
					localGroup({ id: "g1", destination: 17 }),
					localGroup({ id: "g2", destination: 99 }),
				],
				otherShipGroups: [],
				localRace: "Earthlings",
			},
		});
		expect(ui.getAllByTestId("inspector-planet-ship-groups-row").length).toBe(
			1,
		);
	});

	test("excludes in-hyperspace groups even when destination matches", () => {
		const ui = render(ShipGroups, {
			props: {
				planet: HOME_PLANET,
				localShipGroups: [
					localGroup({ id: "stationed", destination: 17 }),
					localGroup({
						id: "fleeing",
						destination: 17,
						origin: 99,
						range: 5,
					}),
				],
				otherShipGroups: [],
				localRace: "Earthlings",
			},
		});
		expect(ui.getAllByTestId("inspector-planet-ship-groups-row").length).toBe(
			1,
		);
	});

	test("subsection collapses entirely when nothing is stationed", () => {
		const ui = render(ShipGroups, {
			props: {
				planet: HOME_PLANET,
				localShipGroups: [],
				otherShipGroups: [],
				localRace: "Earthlings",
			},
		});
		expect(ui.queryByTestId("inspector-planet-ship-groups")).toBeNull();
	});
});