package com.zioinfo.mro.receiving;

import com.zioinfo.mro.admin.AuditService;
import com.zioinfo.mro.receiving.mapper.ReceivingMapper;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;
import java.util.Set;

/**
 * 입고 서비스 — 순수 입고 기록 + 검사결과 등록. 재고 연동 없음.
 */
@Service
@RequiredArgsConstructor
public class ReceivingService {

    private static final Set<String> INSPECT_RESULTS = Set.of("PASS", "FAIL", "PENDING");

    private final ReceivingMapper mapper;
    private final AuditService audit;

    public List<MroReceiving> list(String poNo, String inspectResult) {
        return mapper.findAll(poNo, inspectResult);
    }

    public MroReceiving get(Long id) {
        MroReceiving r = mapper.findById(id);
        if (r == null) throw new RuntimeException("ERR-RCV-404: 입고 없음");
        return r;
    }

    public MroReceiving create(MroReceiving r, String actor) {
        if (r.getMaterialCode() == null || r.getMaterialCode().isBlank())
            throw new IllegalArgumentException("ERR-RCV-400: materialCode 필수");
        if (r.getReceivingNo() == null || r.getReceivingNo().isBlank()) {
            r.setReceivingNo("RCV-" + System.currentTimeMillis());
        }
        if (mapper.countByNo(r.getReceivingNo()) > 0) {
            throw new RuntimeException("ERR-RCV-409: 중복 입고번호");
        }
        if (r.getLocationCode() == null) r.setLocationCode("WH-MRO");
        if (r.getUnit() == null) r.setUnit("EA");
        if (r.getInspectResult() == null) r.setInspectResult("PENDING");
        else if (!INSPECT_RESULTS.contains(r.getInspectResult().toUpperCase()))
            throw new IllegalArgumentException("ERR-RCV-400: inspectResult 은 PASS/FAIL/PENDING");
        r.setReceivedBy(actor);
        r.setReceivedAt(LocalDateTime.now());
        r.setCreatedBy(actor);
        mapper.insert(r);
        audit.log(actor, "RECEIVING_CREATE", r.getReceivingNo(), "po=" + r.getPoNo());
        return mapper.findById(r.getId());
    }

    /** 검사결과 등록 — PASS/FAIL. */
    public MroReceiving inspect(Long id, String inspectResult, String actor) {
        MroReceiving cur = get(id);
        String s = inspectResult == null ? "" : inspectResult.trim().toUpperCase();
        if (!"PASS".equals(s) && !"FAIL".equals(s)) {
            throw new IllegalArgumentException("ERR-RCV-400: inspectResult 은 PASS/FAIL");
        }
        cur.setInspectResult(s);
        mapper.update(cur);
        audit.log(actor, "RECEIVING_INSPECT", cur.getReceivingNo(), "result=" + s);
        return mapper.findById(id);
    }
}