import collectEvents from "../../Gtd/collectEvents";
import collectKanban from "../../Gtd/collectKanban";
import collectMatrix from "../../Gtd/collectMatrix";
import resolveEffectiveFolderScope from "../../Gtd/effectiveFolderScope";
import parseCalendarConfig from "../../Gtd/parseCalendarConfig";
import parseKanbanConfig from "../../Gtd/parseKanbanConfig";
import parseMatrixConfig from "../../Gtd/parseMatrixConfig";
import { DataAdapter, RawFolder, RawNote } from "../../Gtd/types";

const folders: RawFolder[] = [
	{ id: "work", parent_id: "", title: "Work" },
	{ id: "ibm", parent_id: "work", title: "IBM" },
	{ id: "ibm-child", parent_id: "ibm", title: "Projects" },
	{ id: "archive-work", parent_id: "work", title: "Archive" },
	{ id: "personal", parent_id: "", title: "Personal" },
	{ id: "archive-personal", parent_id: "personal", title: "Archive" },
];

function note(id: string, parentId: string): RawNote {
	return {
		id,
		title: id,
		parent_id: parentId,
		is_todo: 1,
		todo_due: 0,
		todo_completed: 0,
		updated_time: 0,
		body: "```gtd\n```",
	};
}

function adapter(calls: string[]): DataAdapter {
	return {
		getFolders: async () => folders,
		getNotesInFolder: async (folderId) => {
			calls.push(folderId);
			return [note(`note-${folderId}`, folderId)];
		},
		getNoteTagTitles: async () => [],
	};
}

describe("exclude-notebook config parsing", () => {
	test.each([
		["calendar", parseCalendarConfig],
		["kanban", parseKanbanConfig],
		["matrix", parseMatrixConfig],
	] as const)("%s accepts omitted, scalar, and list forms", (_name, parse) => {
		expect(parse({}).excludeNotebooks).toEqual([]);
		expect(parse({ "exclude-notebook": " IBM " }).excludeNotebooks).toEqual([
			"IBM",
		]);
		const config = parse({ "exclude-notebook": [" IBM ", "Archive", "IBM"] });
		expect(config.excludeNotebooks).toEqual(["IBM", "Archive", "IBM"]);
		expect(config.warnings).toEqual([]);
	});

	test.each([parseCalendarConfig, parseKanbanConfig, parseMatrixConfig])(
		"retains valid list entries and warns in input order",
		(parse) => {
			const config = parse({
				"exclude-notebook": ["IBM", " ", { title: "Archive" }, ["Personal"]],
			});
			expect(config.excludeNotebooks).toEqual(["IBM"]);
			expect(config.warnings).toEqual([
				"Invalid exclude-notebook entry 2 (empty value ignored)",
				"Invalid exclude-notebook entry 3 (expected a notebook name, path, or id)",
				"Invalid exclude-notebook entry 4 (expected a notebook name, path, or id)",
			]);
		}
	);
});

describe("effective notebook scope", () => {
	test("subtracts complete, overlapping trees from scope: all", () => {
		const result = resolveEffectiveFolderScope(
			folders,
			"work",
			0,
			true,
			["IBM", "Work/IBM/Projects", "IBM"]
		);
		expect(result.folderIds).toEqual([
			"work",
			"archive-work",
			"personal",
			"archive-personal",
		]);
		expect([...result.excludedFolderIds].sort()).toEqual(["ibm", "ibm-child"]);
		expect(result.warnings).toEqual([]);
	});

	test("resolves entries independently and warns without fallback", () => {
		const result = resolveEffectiveFolderScope(
			folders,
			"work",
			Infinity,
			false,
			["Archive", "Nope", "Personal"]
		);
		expect(result.folderIds).toEqual(["work", "ibm", "archive-work", "ibm-child"]);
		expect(result.warnings).toEqual([
			'exclude-notebook: "Archive" is ambiguous (2 notebooks share that name — qualify it as a Parent/Child path) (nothing excluded)',
			'exclude-notebook: no notebook named "Nope" (nothing excluded)',
		]);
	});

	test("supports paths, root exclusion, empty scope, and cycle safety", () => {
		expect(
			resolveEffectiveFolderScope(folders, "work", Infinity, false, ["Work"]).folderIds
		).toEqual([]);
		const cyclic: RawFolder[] = [
			{ id: "a", parent_id: "b", title: "A" },
			{ id: "b", parent_id: "a", title: "B" },
		];
		expect(
			resolveEffectiveFolderScope(cyclic, "a", Infinity, false, ["b"]).folderIds
		).toEqual([]);
	});

	test("accepts a 32-character folder id", () => {
		const id = "0123456789abcdef0123456789abcdef";
		const idFolders = [
			...folders,
			{ id, parent_id: "personal", title: "Secret" },
		];
		const result = resolveEffectiveFolderScope(
			idFolders,
			"work",
			0,
			true,
			[id.toUpperCase()]
		);
		expect(result.folderIds).not.toContain(id);
		expect(result.warnings).toEqual([]);
	});
});

describe("collector exclusion integration", () => {
	test.each([
		["calendar", async (data: DataAdapter) => collectEvents(data, "host", "work", parseCalendarConfig({ scope: "all", notes: "all", todos: "all", "exclude-notebook": "IBM" }))],
		["kanban", async (data: DataAdapter) => collectKanban(data, "host", "work", parseKanbanConfig({ scope: "all", todos: "all", "exclude-notebook": "IBM" }))],
		["matrix", async (data: DataAdapter) => collectMatrix(data, "host", "work", parseMatrixConfig({ scope: "all", todos: "all", mode: "eisenhower", "exclude-notebook": "IBM" }))],
	] as const)("%s never fetches excluded folders", async (_name, collect) => {
		const calls: string[] = [];
		const result = await collect(adapter(calls));
		expect(calls).toEqual(["work", "archive-work", "personal", "archive-personal"]);
		expect(result.scannedFolders).toBe(4);
		expect(result.scannedNotes).toBe(4);
	});

	test.each([
		["kanban", async (data: DataAdapter) => collectKanban(data, "host", "work", parseKanbanConfig({ scope: "children", group: "notebook", todos: "all", "exclude-notebook": "IBM" }))],
		["matrix", async (data: DataAdapter) => collectMatrix(data, "host", "work", parseMatrixConfig({ scope: "children", group: "notebook", todos: "all", mode: "eisenhower", "exclude-notebook": "IBM" }))],
	] as const)("%s grouped layout omits the excluded tree", async (_name, collect) => {
		const calls: string[] = [];
		const result = await collect(adapter(calls));
		expect(calls).toEqual(["work", "archive-work"]);
		expect(result.layout.kind).toBe("notebooks");
		if (result.layout.kind !== "notebooks") throw new Error("grouped expected");
		expect(result.layout.groups.map((group) => group.folderId)).toEqual([
			"work",
			"archive-work",
		]);
	});

	test("an entirely excluded calendar scope uses an empty result", async () => {
		const calls: string[] = [];
		const result = await collectEvents(
			adapter(calls),
			"host",
			"work",
			parseCalendarConfig({ "exclude-notebook": "Work" })
		);
		expect(calls).toEqual([]);
		expect(result).toMatchObject({ events: [], scannedFolders: 0, scannedNotes: 0 });
	});
});