74 lines
1.9 KiB
JavaScript
74 lines
1.9 KiB
JavaScript
import localforage from "localforage";
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import { matchSorter } from "match-sorter";
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import sortBy from "sort-by";
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export async function getContacts(query) {
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await fakeNetwork(`getContacts:${query}`);
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let contacts = await localforage.getItem("contacts");
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if (!contacts) contacts = [];
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if (query) {
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contacts = matchSorter(contacts, query, { keys: ["first", "last"] });
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}
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return contacts.sort(sortBy("last", "createdAt"));
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}
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export async function createContact() {
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await fakeNetwork();
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let id = Math.random().toString(36).substring(2, 9);
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let contact = { id, createdAt: Date.now() };
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let contacts = await getContacts();
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contacts.unshift(contact);
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await set(contacts);
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return contact;
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}
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export async function getContact(id) {
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await fakeNetwork(`contact:${id}`);
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let contacts = await localforage.getItem("contacts");
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let contact = contacts.find(contact => contact.id === id);
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return contact ?? null;
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}
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export async function updateContact(id, updates) {
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await fakeNetwork();
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let contacts = await localforage.getItem("contacts");
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let contact = contacts.find(contact => contact.id === id);
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if (!contact) throw new Error("No contact found for", id);
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Object.assign(contact, updates);
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await set(contacts);
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return contact;
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}
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export async function deleteContact(id) {
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let contacts = await localforage.getItem("contacts");
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let index = contacts.findIndex(contact => contact.id === id);
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if (index > -1) {
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contacts.splice(index, 1);
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await set(contacts);
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return true;
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}
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return false;
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}
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function set(contacts) {
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return localforage.setItem("contacts", contacts);
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}
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// fake a cache so we don't slow down stuff we've already seen
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let fakeCache = {};
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async function fakeNetwork(key) {
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if (!key) {
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fakeCache = {};
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}
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if (fakeCache[key]) {
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return;
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}
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fakeCache[key] = true;
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return new Promise(res => {
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setTimeout(res, Math.random() * 800);
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});
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}
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