"use server"; // Next.js 서버 액션에서 직접 import하려면 (선택)

import { revalidateTag, unstable_noStore } from "next/cache";
import  db  from "@/db/db";
import { unstable_cache } from "@/lib/unstable-cache";
import { GetFormListsSchema } from "./validation";
import { filterColumns } from "@/lib/filter-columns";
import { tagTypeClassFormMappings } from "@/db/schema/vendorData";
import { asc, desc, ilike, inArray, and, gte, lte, not, or } from "drizzle-orm";
import { countFormLists, selectFormLists } from "./repository";

export async function getFormLists(input: GetFormListsSchema) {

    return unstable_cache(
      async () => {
        try {
          const offset = (input.page - 1) * input.perPage;
  
          // const advancedTable = input.flags.includes("advancedTable");
          const advancedTable = true;
  
          // advancedTable 모드면 filterColumns()로 where 절 구성
          const advancedWhere = filterColumns({
            table: tagTypeClassFormMappings,
            filters: input.filters,
            joinOperator: input.joinOperator,
          });
  
  
          let globalWhere
          if (input.search) {
            const s = `%${input.search}%`
            globalWhere = or(ilike(tagTypeClassFormMappings.formCode, s), ilike(tagTypeClassFormMappings.formName, s)
            , ilike(tagTypeClassFormMappings.tagTypeLabel, s) , ilike(tagTypeClassFormMappings.classLabel, s)
          )
            // 필요시 여러 칼럼 OR조건 (status, priority, etc)
          }
  
          const finalWhere = and(
            // advancedWhere or your existing conditions
            advancedWhere,
            globalWhere // and()함수로 결합 or or() 등으로 결합
          )
  
  
          // 아니면 ilike, inArray, gte 등으로 where 절 구성
          const where = finalWhere
          
  
          const orderBy =
            input.sort.length > 0
              ? input.sort.map((item) =>
                  item.desc ? desc(tagTypeClassFormMappings[item.id]) : asc(tagTypeClassFormMappings[item.id])
                )
              : [asc(tagTypeClassFormMappings.createdAt)];
  
          // 트랜잭션 내부에서 Repository 호출
          const { data, total } = await db.transaction(async (tx) => {
            const data = await selectFormLists(tx, {
              where,
              orderBy,
              offset,
              limit: input.perPage,
            });
  
            const total = await countFormLists(tx, where);
            return { data, total };
          });
  
          const pageCount = Math.ceil(total / input.perPage);
  
          return { data, pageCount };
        } catch (err) {
          // 에러 발생 시 디폴트
          return { data: [], pageCount: 0 };
        }
      },
      [JSON.stringify(input)], // 캐싱 키
      {
        revalidate: 3600,
        tags: ["form-lists"], // revalidateTag("items") 호출 시 무효화
      }
    )();
  }