import { bench, describe } from 'vitest'
import { EventStorageKV } from '../src/event-storage/event-storage-kv.js'
import { KVStorageInMemory } from '../src/kv-storage/kv-storage-in-memory.js'

const events = new EventStorageKV(new KVStorageInMemory())
const streams = events.child('streams')
for (let i = 0; i < 10_000; i++) await streams.append('long', [{ i }])
let s = 0

describe('events', () => {
  bench('append 1 event (warm cache)', async () => {
    await streams.append(`s${s++ % 1000}`, [{ type: 'e' }])
  })
  bench('read 100 events from version 5000 of 10k', async () => {
    for await (const _ of streams.read('long', { from: 5000, limit: 100 })) {
    }
  })
  bench('read full 10k-event stream', async () => {
    for await (const _ of streams.read('long')) {
    }
  })
})