import Replicache, {WriteTransaction} from 'replicache';

import {

dataLayerAuth,

diffServerURL,

diffServerAuth,

batchURL,

} from './settings';

import type {EventIdentity, Event, EventUpdate} from './types';

export const rep = new Replicache({

diffServerURL,

dataLayerAuth,

diffServerAuth,

batchURL,

});

function eventKey(event: EventIdentity) {

return `/event/${event.id}`;

}

export const addEvent = rep.register(

'addEvent',

async (tx: WriteTransaction, event: Event) => {

await tx.put(eventKey(event), event);

},

);

export const updateEvent = rep.register(

'updateEvent',

async (tx: WriteTransaction, update: EventUpdate) => {

const event = (await tx.get(eventKey(update))) as Event | null;

if (!event) {

console.warn(`Possible conflict - event ${update.id} not found`);

return;

}

event.summary = update.summary ?? event.summary;

event.start = update.start ?? event.start;

event.end = update.end ?? event.end;

await tx.put(eventKey(event), event);

},

);

export const deleteEvent = rep.register(

'deleteEvent',

async (tx: WriteTransaction, id: EventIdentity) => {

await tx.del(eventKey(id));

},

);