/** Base URL for API calls. In dev Vite proxies /api → :3000. */
const BASE = '';

async function request<T>(path: string, init?: RequestInit): Promise<T> {
	const res = await fetch(BASE + path, {
		headers: { 'Content-Type': 'application/json', ...(init?.headers ?? {}) },
		...init,
	});
	if (!res.ok) {
		const text = await res.text().catch(() => res.statusText);
		throw new Error(text || `HTTP ${res.status}`);
	}
	return res.json() as Promise<T>;
}

export const api = {
	get: <T>(path: string) => request<T>(path),
	post: <T>(path: string, body?: unknown) =>
		request<T>(path, { method: 'POST', body: body !== undefined ? JSON.stringify(body) : undefined }),
	patch: <T>(path: string, body?: unknown) =>
		request<T>(path, { method: 'PATCH', body: body !== undefined ? JSON.stringify(body) : undefined }),
	delete: <T>(path: string) => request<T>(path, { method: 'DELETE' }),
	/** POST multipart/form-data (file upload). Omit Content-Type so browser sets boundary. */
	postForm: <T>(path: string, body: FormData) =>
		request<T>(path, { method: 'POST', body, headers: {} }),
};