import { createCollection } from '@tanstack/db'
import {
  createCloudflareDOSQLitePersistence,
  persistedCollectionOptions,
} from '@tanstack/cloudflare-durable-objects-db-sqlite-persistence'

type Todo = {
  id: string
  title: string
  completed: boolean
}

export class TodosObject extends DurableObject {
  persistence = createCloudflareDOSQLitePersistence({
    // Pass full storage to use native DO transaction support.
    storage: this.ctx.storage,
  })

  todos = createCollection(
    persistedCollectionOptions<Todo, string>({
      id: `todos`,
      getKey: (todo) => todo.id,
      persistence: this.persistence,
      schemaVersion: 1, // Per-collection schema version
    }),
  )
}