/* @vitest-environment node */

import { describe, it, expect } from "vitest";
import { ApiClientError } from "@/lib/frontend/apiClient";
import { mapSearchError } from "./errorMapping.js";

describe("lib/frontend/search/errorMapping", () => {
	it("returns null for missing error", () => {
		expect(mapSearchError(null)).toBe(null);
		expect(mapSearchError(undefined)).toBe(null);
	});

	it("maps unauthenticated", () => {
		const err = new ApiClientError({
			status: 401,
			code: "AUTH_UNAUTHENTICATED",
			message: "Unauthorized",
		});

		const mapped = mapSearchError(err);
		expect(mapped).toMatchObject({ kind: "unauthenticated" });
	});

	it("maps forbidden", () => {
		const err = new ApiClientError({
			status: 403,
			code: "AUTH_FORBIDDEN_BRANCH",
			message: "Forbidden",
		});

		const mapped = mapSearchError(err);
		expect(mapped).toMatchObject({ kind: "forbidden" });
	});

	it("maps known validation errors to friendly German copy", () => {
		const err = new ApiClientError({
			status: 400,
			code: "VALIDATION_SEARCH_MISSING_FILTER",
			message: "At least one of q or date range must be provided",
		});

		const mapped = mapSearchError(err);
		expect(mapped).toEqual({
			kind: "validation",
			title: "Kein Suchbegriff",
			description: "Bitte geben Sie einen Suchbegriff ein.",
		});
	});

	it("maps unknown validation errors to a generic validation message", () => {
		const err = new ApiClientError({
			status: 400,
			code: "VALIDATION_SOMETHING_NEW",
			message: "nope",
		});

		const mapped = mapSearchError(err);
		expect(mapped?.kind).toBe("validation");
		expect(mapped?.title).toBe("Ungültige Eingabe");
	});

	it("maps network errors", () => {
		const err = new ApiClientError({
			status: 0,
			code: "CLIENT_NETWORK_ERROR",
			message: "Network error",
		});

		const mapped = mapSearchError(err);
		expect(mapped).toMatchObject({ kind: "generic", title: "Netzwerkfehler" });
	});

	it("maps unknown errors to generic", () => {
		const mapped = mapSearchError(new Error("boom"));
		expect(mapped).toMatchObject({ kind: "generic" });
	});

	it("maps VALIDATION_SEARCH_RANGE to a specific German message", () => {
		const err = new ApiClientError({
			status: 400,
			code: "VALIDATION_SEARCH_RANGE",
			message: "Invalid date range",
		});

		const mapped = mapSearchError(err);
		expect(mapped).toMatchObject({
			kind: "validation",
			title: "Ungültiger Zeitraum",
		});
		expect(mapped.description).toMatch(/Startdatum/i);
	});
});