import { apiClient } from '$lib/server/api';

const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;

function isValidUuid(value: string | null): value is string {
	return typeof value === 'string' && UUID_RE.test(value);
}

export async function addSlotAction({ fetch, request }: { fetch: typeof globalThis.fetch; request: Request }) {
	const formData = await request.formData();
	const planId = formData.get('planId') as string | null;
	const slotDate = formData.get('slotDate') as string | null;
	const recipeId = formData.get('recipeId') as string | null;

	if (!isValidUuid(planId) || !isValidUuid(recipeId) || !slotDate) {
		return { success: false, error: 'Ungültige Eingabe.' };
	}

	const api = apiClient(fetch);
	const { data, error } = await api.POST('/v1/week-plans/{id}/slots', {
		params: { path: { id: planId } },
		body: { slotDate, recipeId }
	});

	if (error || !data) return { success: false };
	return { success: true, slot: data };
}

export async function updateSlotAction({ fetch, request }: { fetch: typeof globalThis.fetch; request: Request }) {
	const formData = await request.formData();
	const planId = formData.get('planId') as string | null;
	const slotId = formData.get('slotId') as string | null;
	const recipeId = formData.get('recipeId') as string | null;

	if (!isValidUuid(planId) || !isValidUuid(slotId) || !isValidUuid(recipeId)) {
		return { success: false, error: 'Ungültige Eingabe.' };
	}

	const api = apiClient(fetch);
	const { data, error } = await api.PATCH('/v1/week-plans/{planId}/slots/{slotId}', {
		params: { path: { planId, slotId } },
		body: { recipeId }
	});

	if (error || !data) return { success: false };
	return { success: true, slot: data };
}

export async function deleteSlotAction({ fetch, request }: { fetch: typeof globalThis.fetch; request: Request }) {
	const formData = await request.formData();
	const planId = formData.get('planId') as string | null;
	const slotId = formData.get('slotId') as string | null;

	if (!isValidUuid(planId) || !isValidUuid(slotId)) {
		return { success: false, error: 'Ungültige Eingabe.' };
	}

	const api = apiClient(fetch);
	const { error } = await api.DELETE('/v1/week-plans/{planId}/slots/{slotId}', {
		params: { path: { planId, slotId } }
	});

	if (error) return { success: false };
	return { success: true };
}