// @vitest-environment jsdom
import type { PlayerCharacter } from "@initiative/domain";
import { playerCharacterId } from "@initiative/domain";
import { act, renderHook } from "@testing-library/react";
import { beforeEach, describe, expect, it, vi } from "vitest";
import type { SearchResult } from "../../contexts/bestiary-context.js";
import { useActionBarState } from "../use-action-bar-state.js";

const mockAddCombatant = vi.fn();
const mockAddFromBestiary = vi.fn();
const mockAddMultipleFromBestiary = vi.fn();
const mockAddFromPlayerCharacter = vi.fn();
const mockBestiarySearch = vi.fn<(q: string) => SearchResult[]>();
const mockShowCreature = vi.fn();
const mockShowBulkImport = vi.fn();
const mockShowSourceManager = vi.fn();

vi.mock("../../contexts/encounter-context.js", () => ({
	useEncounterContext: () => ({
		addCombatant: mockAddCombatant,
		addFromBestiary: mockAddFromBestiary,
		addMultipleFromBestiary: mockAddMultipleFromBestiary,
		addFromPlayerCharacter: mockAddFromPlayerCharacter,
		lastCreatureId: null,
	}),
}));

vi.mock("../../contexts/bestiary-context.js", () => ({
	useBestiaryContext: () => ({
		search: mockBestiarySearch,
		isLoaded: true,
	}),
}));

vi.mock("../../contexts/player-characters-context.js", () => ({
	usePlayerCharactersContext: () => ({
		characters: mockPlayerCharacters,
	}),
}));

vi.mock("../../contexts/side-panel-context.js", () => ({
	useSidePanelContext: () => ({
		showCreature: mockShowCreature,
		showBulkImport: mockShowBulkImport,
		showSourceManager: mockShowSourceManager,
		panelView: { mode: "closed" },
	}),
}));

let mockPlayerCharacters: PlayerCharacter[] = [];

const GOBLIN: SearchResult = {
	name: "Goblin",
	source: "MM",
	sourceDisplayName: "Monster Manual",
	ac: 15,
	hp: 7,
	dex: 14,
	cr: "1/4",
	initiativeProficiency: 0,
	size: "Small",
	type: "humanoid",
};

const ORC: SearchResult = {
	name: "Orc",
	source: "MM",
	sourceDisplayName: "Monster Manual",
	ac: 13,
	hp: 15,
	dex: 12,
	cr: "1/2",
	initiativeProficiency: 0,
	size: "Medium",
	type: "humanoid",
};

function renderActionBar() {
	return renderHook(() => useActionBarState());
}

describe("useActionBarState", () => {
	beforeEach(() => {
		vi.clearAllMocks();
		mockBestiarySearch.mockReturnValue([]);
		mockPlayerCharacters = [];
	});

	describe("search and suggestions", () => {
		it("starts with empty state", () => {
			const { result } = renderActionBar();

			expect(result.current.nameInput).toBe("");
			expect(result.current.suggestions).toEqual([]);
			expect(result.current.queued).toBeNull();
			expect(result.current.browseMode).toBe(false);
		});

		it("searches bestiary when input >= 2 chars", () => {
			mockBestiarySearch.mockReturnValue([GOBLIN]);
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("go"));

			expect(mockBestiarySearch).toHaveBeenCalledWith("go");
			expect(result.current.nameInput).toBe("go");
		});

		it("does not search when input < 2 chars", () => {
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("g"));

			expect(mockBestiarySearch).not.toHaveBeenCalled();
		});

		it("matches player characters by name", () => {
			mockPlayerCharacters = [
				{
					id: playerCharacterId("pc-1"),
					name: "Gandalf",
					ac: 15,
					maxHp: 40,
				},
			];
			mockBestiarySearch.mockReturnValue([]);
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("gan"));

			expect(result.current.pcMatches).toHaveLength(1);
		});
	});

	describe("queued creatures", () => {
		it("queues a creature on click", () => {
			const { result } = renderActionBar();

			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));

			expect(result.current.queued).toEqual({
				result: GOBLIN,
				count: 1,
			});
		});

		it("increments count when same creature clicked again", () => {
			const { result } = renderActionBar();

			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));

			expect(result.current.queued?.count).toBe(2);
		});

		it("resets queue when different creature clicked", () => {
			const { result } = renderActionBar();

			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.clickSuggestion(ORC));

			expect(result.current.queued).toEqual({
				result: ORC,
				count: 1,
			});
		});

		it("confirmQueued calls addFromBestiary for count=1", () => {
			const { result } = renderActionBar();

			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.confirmQueued());

			expect(mockAddFromBestiary).toHaveBeenCalledWith(GOBLIN);
			expect(result.current.queued).toBeNull();
		});

		it("confirmQueued calls addMultipleFromBestiary for count>1", () => {
			const { result } = renderActionBar();

			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.confirmQueued());

			expect(mockAddMultipleFromBestiary).toHaveBeenCalledWith(GOBLIN, 3);
		});

		it("clears queued when search text changes and creature no longer visible", () => {
			mockBestiarySearch.mockReturnValue([GOBLIN]);
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("go"));
			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));

			// Change search to something that won't match
			mockBestiarySearch.mockReturnValue([]);
			act(() => result.current.handleNameChange("xyz"));

			expect(result.current.queued).toBeNull();
		});
	});

	describe("form submission", () => {
		it("adds custom combatant on submit", () => {
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("Fighter"));

			const event = {
				preventDefault: vi.fn(),
			} as unknown as React.SubmitEvent<HTMLFormElement>;
			act(() => result.current.handleAdd(event));

			expect(mockAddCombatant).toHaveBeenCalledWith("Fighter", undefined);
			expect(result.current.nameInput).toBe("");
		});

		it("does not add when name is empty", () => {
			const { result } = renderActionBar();

			const event = {
				preventDefault: vi.fn(),
			} as unknown as React.SubmitEvent<HTMLFormElement>;
			act(() => result.current.handleAdd(event));

			expect(mockAddCombatant).not.toHaveBeenCalled();
		});

		it("passes custom init/ac/maxHp when set", () => {
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("Fighter"));
			act(() => result.current.setCustomInit("15"));
			act(() => result.current.setCustomAc("18"));
			act(() => result.current.setCustomMaxHp("45"));

			const event = {
				preventDefault: vi.fn(),
			} as unknown as React.SubmitEvent<HTMLFormElement>;
			act(() => result.current.handleAdd(event));

			expect(mockAddCombatant).toHaveBeenCalledWith("Fighter", {
				initiative: 15,
				ac: 18,
				maxHp: 45,
			});
		});

		it("does not submit in browse mode", () => {
			const { result } = renderActionBar();

			act(() => result.current.toggleBrowseMode());
			act(() => result.current.handleNameChange("Fighter"));

			const event = {
				preventDefault: vi.fn(),
			} as unknown as React.SubmitEvent<HTMLFormElement>;
			act(() => result.current.handleAdd(event));

			expect(mockAddCombatant).not.toHaveBeenCalled();
		});

		it("confirms queued on submit instead of adding by name", () => {
			const { result } = renderActionBar();

			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));

			const event = {
				preventDefault: vi.fn(),
			} as unknown as React.SubmitEvent<HTMLFormElement>;
			act(() => result.current.handleAdd(event));

			expect(mockAddFromBestiary).toHaveBeenCalledWith(GOBLIN);
			expect(mockAddCombatant).not.toHaveBeenCalled();
		});
	});

	describe("browse mode", () => {
		it("toggles browse mode", () => {
			const { result } = renderActionBar();

			act(() => result.current.toggleBrowseMode());
			expect(result.current.browseMode).toBe(true);

			act(() => result.current.toggleBrowseMode());
			expect(result.current.browseMode).toBe(false);
		});

		it("handleBrowseSelect shows creature and exits browse mode", () => {
			const { result } = renderActionBar();

			act(() => result.current.toggleBrowseMode());
			act(() => result.current.handleBrowseSelect(GOBLIN));

			expect(mockShowCreature).toHaveBeenCalledWith("mm:goblin");
			expect(result.current.browseMode).toBe(false);
			expect(result.current.nameInput).toBe("");
		});
	});

	describe("dismiss and clear", () => {
		it("dismissSuggestions clears suggestions and queued", () => {
			mockBestiarySearch.mockReturnValue([GOBLIN]);
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("go"));
			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.dismiss());

			expect(result.current.queued).toBeNull();
			expect(result.current.suggestionIndex).toBe(-1);
		});

		it("clear resets everything", () => {
			mockBestiarySearch.mockReturnValue([GOBLIN]);
			const { result } = renderActionBar();

			act(() => result.current.handleNameChange("go"));
			act(() => result.current.suggestionActions.clickSuggestion(GOBLIN));
			act(() => result.current.suggestionActions.clear());

			expect(result.current.nameInput).toBe("");
			expect(result.current.queued).toBeNull();
			expect(result.current.suggestionIndex).toBe(-1);
		});
	});
});