import { validateAndMoveMatrixCard } from "../../Gtd/matrixMoveHandler";
import { DataAdapter, MutationAdapter, RawFolder, RawNote, RawTag } from "../../Gtd/types";

const folders: RawFolder[] = [
	{ id: "board", parent_id: "", title: "Board" },
	{ id: "child", parent_id: "board", title: "Child" },
	{ id: "outside", parent_id: "", title: "Outside" },
];

function card(overrides: Partial<RawNote> = {}): RawNote {
	return {
		id: "card", title: "Card", parent_id: "board", is_todo: 0,
		todo_due: 0, todo_completed: 0, updated_time: 0, body: "```gtd\n```",
		...overrides,
	};
}

function setup(current: RawNote | null = card(), attached: RawTag[] = []) {
	const writes: string[] = [];
	const read: DataAdapter = {
		getFolders: async () => folders,
		getNotesInFolder: async () => [],
		getNoteTagTitles: async () => [],
	};
	const mutation: MutationAdapter = {
		getNote: async () => current,
		getNoteTags: async () => attached.slice(),
		getAllTags: async () => [
			{ id: "urgent", title: "urgent" },
			{ id: "important", title: "important" },
		],
		createTag: async (title) => ({ id: title, title }),
		attachTag: async (tagId) => { writes.push(`attach:${tagId}`); },
		detachTag: async (tagId) => { writes.push(`detach:${tagId}`); },
		setTodoCompleted: async () => { throw new Error("completion write forbidden"); },
	};
	return { read, mutation, writes };
}

function intent(overrides: Record<string, unknown> = {}) {
	return {
		type: "moveMatrixCard", view: "matrix", hostNoteId: "host", cardId: "card",
		destination: "topLeft",
		rawConfig: "mode: eisenhower\neditable: yes\nnotes: all\ntodos: all",
		viewInstanceId: "view-1", ...overrides,
	};
}

const host = { id: "host", parentId: "board" };

describe("validateAndMoveMatrixCard", () => {
	test("accepts a constrained editable Eisenhower move", async () => {
		const { read, mutation, writes } = setup();
		await expect(validateAndMoveMatrixCard(intent(), host, read, mutation)).resolves.toEqual({
			status: "success", viewInstanceId: "view-1", changed: true,
		});
		expect(writes).toEqual(["attach:urgent", "attach:important"]);
	});

	test.each([
		{}, intent({ view: "kanban" }), intent({ destination: "done" }),
		intent({ cardId: "" }), intent({ rawConfig: { editable: "yes" } }),
		intent({ patch: { tags: ["urgent"] } }),
	])("rejects malformed or expanded input without writes", async (request) => {
		const { read, mutation, writes } = setup();
		expect((await validateAndMoveMatrixCard(request, host, read, mutation)).status).toBe("error");
		expect(writes).toEqual([]);
	});

	test.each([
		["", "error"],
		["mode: eisenhower\neditable: no", "error"],
		["mode: skeleton\neditable: yes", "error"],
		["mode: eisenhower\neditable: yes\nurgent-tag: same\nimportant-tag: SAME", "error"],
		["editable: [yes", "stale"],
	] as const)("rejects invalid or non-editable config", async (rawConfig, status) => {
		const { read, mutation, writes } = setup();
		expect((await validateAndMoveMatrixCard(intent({ rawConfig }), host, read, mutation)).status).toBe(status);
		expect(writes).toEqual([]);
	});

	test("requires the selected host identity", async () => {
		for (const selected of [null, { id: "other", parentId: "board" }]) {
			const { read, mutation, writes } = setup();
			expect((await validateAndMoveMatrixCard(intent(), selected, read, mutation)).status).toBe("stale");
			expect(writes).toEqual([]);
		}
	});

	test.each([
		[card({ id: "host" }), [], "dashboard"],
		[card({ parent_id: "outside" }), [], "scope"],
		[card({ body: "plain" }), [], "gtd block"],
		[card({ is_todo: 1, todo_completed: 99 }), [], "complete"],
		[card(), [{ id: "done", title: "DONE" }], "complete"],
	] as Array<[RawNote, RawTag[], string]>)("rejects stale item state", async (current, tags, message) => {
		const { read, mutation, writes } = setup(current, tags);
		const moveResult = await validateAndMoveMatrixCard(intent(), host, read, mutation);
		expect(moveResult).toMatchObject({ status: "stale" });
		expect((moveResult as any).message).toContain(message);
		expect(writes).toEqual([]);
	});

	test("resolves notebook and children scope from fresh folders", async () => {
		const { read, mutation, writes } = setup(card({ parent_id: "child" }));
		const moveResult = await validateAndMoveMatrixCard(intent({
			rawConfig: "mode: eisenhower\neditable: yes\nnotebook: Board\nscope: children",
		}), host, read, mutation);
		expect(moveResult.status).toBe("success");
		expect(writes).toEqual(["attach:urgent", "attach:important"]);
	});

	test.each([
		[card({ is_todo: 0 }), "mode: eisenhower\neditable: yes\nnotes: none\ntodos: all"],
		[card({ is_todo: 1, body: "plain" }), "mode: eisenhower\neditable: yes\nnotes: all\ntodos: gtd-only"],
		[card({ is_todo: 1 }), "mode: eisenhower\neditable: yes\nnotes: all\ntodos: none"],
	])("rechecks filters and opt-in", async (current, rawConfig) => {
		const { read, mutation, writes } = setup(current);
		expect((await validateAndMoveMatrixCard(intent({ rawConfig }), host, read, mutation)).status).toBe("stale");
		expect(writes).toEqual([]);
	});

	test("returns a safe error and logs API diagnostics", async () => {
		const { read, mutation, writes } = setup();
		const diagnostics: unknown[] = [];
		read.getFolders = async () => { throw new Error("private detail"); };
		expect(await validateAndMoveMatrixCard(intent(), host, read, mutation, (e) => diagnostics.push(e))).toEqual({
			status: "error", viewInstanceId: "view-1",
			message: "Could not apply the move. Refresh and try again.",
		});
		expect(diagnostics).toHaveLength(1);
		expect(writes).toEqual([]);
	});
});