"use server";

import { BASE_API_URL } from "@/config/api";
import { serverFetchJson } from "@/app/utils/fetchUtil";
import { revalidateTag } from "next/cache";
import { cache } from "react";
import type { MessageResponse } from "@/app/api/shop/actions";
import { RecordsRes } from "@/app/api/utils";

export interface ExpiryItemResult {
  id: number;
  itemId: number;
  itemCode: string;
  itemDescription: string | null;
  lotId: number;
  lotNo: string | null;
  storeLocation: string | null;
  expiryDate: string | null;
  remainingQty: number;
  uomDesc?: string | null;
  /** True when expiryDate is today or earlier. */
  canHandle?: boolean;
}

export interface ExpiryItemFilter {
  itemCode?: string;
  itemName?: string;
  lotNo?: string;
  /** Inclusive lookahead from today; default 7. */
  daysAhead?: number;
}

export interface HandleBadItemRequest {
  inventoryLotLineId: number;
  qty: number;
  remarks?: string;
  handler?: number;
}

export interface StockIssueHandleRecord {
  id: number;
  stockOutLineId: number | null;
  stockOutId: number | null;
  handledAt: string | null;
  itemId: number | null;
  itemCode: string | null;
  itemName: string | null;
  lotNo: string | null;
  storeLocation: string | null;
  expiryDate: string | null;
  qty: number;
  uomDesc: string | null;
  handlerId: number | null;
  handlerName: string | null;
  remarks: string | null;
  type: string | null;
}

export interface SearchStockIssueRecordParams {
  startDate?: string;
  endDate?: string;
  handledStartDate?: string;
  handledEndDate?: string;
  itemCode?: string;
  itemName?: string;
  lotNo?: string;
  pageNum?: number;
  pageSize?: number;
}

/** FP-MTMS Version Checklist | Functions Ref. No. 74 | v1.0.2 | 2026-09-07 */
export const fetchExpiryItemList = cache(async (filters?: ExpiryItemFilter) => {
  const params = new URLSearchParams();
  if (filters?.itemCode) params.set("itemCode", filters.itemCode);
  if (filters?.itemName) params.set("itemName", filters.itemName);
  if (filters?.lotNo) params.set("lotNo", filters.lotNo);
  if (filters?.daysAhead != null) params.set("daysAhead", String(filters.daysAhead));
  const queryString = params.toString();
  const url = `${BASE_API_URL}/pickExecution/issues/expiryItem${queryString ? `?${queryString}` : ""}`;
  return serverFetchJson<ExpiryItemResult[]>(url, {
    next: { tags: ["Expiry Item List"] },
  });
});

export async function handleBadItem(request: HandleBadItemRequest) {
  const res = await serverFetchJson<MessageResponse>(
    `${BASE_API_URL}/stockIssue/handleBadItem`,
    {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(request),
    },
  );
  if (!res?.code || res.code === "SUCCESS") {
    revalidateTag("inventoryLotLines");
    revalidateTag("inventories");
  }
  return res;
}

export async function fetchBadItemRecords(params: SearchStockIssueRecordParams) {
  const qs = new URLSearchParams();
  if (params.startDate) qs.set("startDate", params.startDate);
  if (params.endDate) qs.set("endDate", params.endDate);
  if (params.itemCode) qs.set("itemCode", params.itemCode);
  if (params.itemName) qs.set("itemName", params.itemName);
  if (params.lotNo) qs.set("lotNo", params.lotNo);
  qs.set("pageNum", String(params.pageNum ?? 0));
  qs.set("pageSize", String(params.pageSize ?? 20));
  return serverFetchJson<RecordsRes<StockIssueHandleRecord[]>>(
    `${BASE_API_URL}/stockIssue/badItemRecords?${qs.toString()}`,
  );
}

export async function fetchExpiryItemRecords(params: SearchStockIssueRecordParams) {
  const qs = new URLSearchParams();
  if (params.startDate) qs.set("startDate", params.startDate);
  if (params.endDate) qs.set("endDate", params.endDate);
  if (params.handledStartDate) qs.set("handledStartDate", params.handledStartDate);
  if (params.handledEndDate) qs.set("handledEndDate", params.handledEndDate);
  if (params.itemCode) qs.set("itemCode", params.itemCode);
  if (params.itemName) qs.set("itemName", params.itemName);
  if (params.lotNo) qs.set("lotNo", params.lotNo);
  qs.set("pageNum", String(params.pageNum ?? 0));
  qs.set("pageSize", String(params.pageSize ?? 20));
  return serverFetchJson<RecordsRes<StockIssueHandleRecord[]>>(
    `${BASE_API_URL}/stockIssue/expiryItemRecords?${qs.toString()}`,
  );
}

export async function submitExpiryItem(lotLineId: number, handler: number) {
  return serverFetchJson<MessageResponse>(
    `${BASE_API_URL}/pickExecution/submitExpiryItem`,
    {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ lotLineId, handler }),
    },
  );
}

export async function batchSubmitExpiryItem(lotLineIds: number[], handler: number) {
  return serverFetchJson<MessageResponse>(
    `${BASE_API_URL}/pickExecution/batchSubmitExpiryItem`,
    {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ lotLineIds, handler }),
    },
  );
}