import type { InventoryCheckResult } from "../api/inventoryChecks";
import { createIndexedDbStore, requestPromise } from "./indexedDbStore";

export type QueuedInventoryScanItem = {
  id: string;
  inventoryCheckId: string;
  assetId: string;
  assetNo: string;
  result: InventoryCheckResult;
  note: string | null;
  createdAt: string;
  lastError: string | null;
};

const STORE_NAME = "inventory_scan_queue";
const database = createIndexedDbStore({
  dbName: "hyb-oa-mobile-inventory",
  dbVersion: 1,
  upgrade(db) {
    if (!db.objectStoreNames.contains(STORE_NAME)) {
      db.createObjectStore(STORE_NAME, { keyPath: "id" });
    }
  },
});

export async function enqueueInventoryScan(input: {
  inventoryCheckId: string;
  assetId: string;
  assetNo: string;
  result: InventoryCheckResult;
  note?: string | null;
}) {
  const id = `${input.inventoryCheckId}:${input.assetId}`;
  const item: QueuedInventoryScanItem = {
    id,
    inventoryCheckId: input.inventoryCheckId,
    assetId: input.assetId,
    assetNo: input.assetNo,
    result: input.result,
    note: input.note?.trim() ? input.note.trim() : null,
    createdAt: new Date().toISOString(),
    lastError: null,
  };

  await database.withStore(STORE_NAME, "readwrite", async (store) => {
    await requestPromise(store.put(item));
    return true;
  });

  return item;
}

export async function listQueuedInventoryScans() {
  return database.withStore(STORE_NAME, "readonly", async (store) => {
    const records = (await requestPromise(store.getAll())) as QueuedInventoryScanItem[];
    return records.sort((a, b) => a.createdAt.localeCompare(b.createdAt));
  });
}

export async function removeQueuedInventoryScan(id: string) {
  await database.withStore(STORE_NAME, "readwrite", async (store) => {
    await requestPromise(store.delete(id));
    return true;
  });
}

export async function updateQueuedInventoryScanError(id: string, lastError: string | null) {
  await database.withStore(STORE_NAME, "readwrite", async (store) => {
    const existing = (await requestPromise(store.get(id))) as QueuedInventoryScanItem | undefined;
    if (!existing) {
      return false;
    }
    await requestPromise(
      store.put({
        ...existing,
        lastError,
      }),
    );
    return true;
  });
}