src/lib/stores/supabase.ts


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import { readable } from 'svelte/store';
import { initialResponse, errorResponse, response } from './response_builder';

import type { Readable } from 'svelte/store';
import type { PostgrestFilterBuilder } from '@supabase/postgrest-js';
import type { StoreState } from './response_builder';

export function collection<T>(
	query: PostgrestFilterBuilder<T>,
	initialValue: T[]
): Readable<StoreState<T[]>> {
	return readable(initialResponse<T[]>(initialValue), (set) => {
		(async function () {
			const { data, error } = await query;

			if (error) {
				return set(errorResponse<T[]>(error));
			}

			set(response<T[]>(data));
		})();
	});
}

export function single<T>(
	query: PostgrestFilterBuilder<T>,
	initialValue: T
): Readable<StoreState<T>> {
	return readable(initialResponse<T>(initialValue), (set) => {
		(async function () {
			const { data, error } = await query.single();

			if (error) {
				return set(errorResponse<T>(error));
			}

			set(response<T>(data));
		})();
	});
}