"use client";

// 자재관리 > 불출의뢰서 — 자재불출 처리 다이얼로그
// wace 1:1: materialRequestDetailPopUp.jsp / acceptInventoryRequestInfo.do
// 라인별 OUT_QTY / OUT_DATE / ACQ_USER 입력 후 OUTSTATUS='complete' 처리.
// 읽기전용(조회) 모드도 지원.

import React, { useEffect, useState } from "react";
import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter, DialogDescription } from "@/components/ui/dialog";
import { Button } from "@/components/ui/button";
import { Save, X } from "lucide-react";
import { toast } from "sonner";
import { Input } from "@/components/ui/input";
import { NumberInput } from "@/components/common/NumberInput";
import { DateInput } from "@/components/common/DateInput";
import { SmartSelect } from "@/components/common/SmartSelect";
import { inventoryMngApi, OptionItem } from "@/lib/api/inventoryMng";

interface LineRow {
  objid: string;
  part_no: string;
  part_name: string;
  material: string;
  spec: string;
  location: string;
  sub_location: string;
  request_qty: string;
  out_qty: number | "";
  out_date: string;
  acq_user: string;
  writer_name: string;
}

interface Props {
  open: boolean;
  onClose: () => void;
  onSaved: () => void;
  masterObjid: string;
  readOnly?: boolean;        // 미접수/완료 상태에서 조회만
}

export function IssueDispatchDialog({ open, onClose, onSaved, masterObjid, readOnly }: Props) {
  const [master, setMaster] = useState<any | null>(null);
  const [rows, setRows] = useState<LineRow[]>([]);
  const [userOpts, setUserOpts] = useState<OptionItem[]>([]);
  const [loading, setLoading] = useState(false);
  const [saving, setSaving] = useState(false);
  const [bulkUser, setBulkUser] = useState("");
  const [bulkDate, setBulkDate] = useState(new Date().toISOString().slice(0, 10));

  useEffect(() => {
    if (!open || !masterObjid) return;
    setMaster(null);
    setRows([]);
    setLoading(true);
    (async () => {
      try {
        const [detail, users] = await Promise.all([
          inventoryMngApi.getIssue(masterObjid),
          inventoryMngApi.users(),
        ]);
        setMaster(detail.master);
        setRows((detail.lines ?? []).map((l: any) => ({
          objid: l.objid,
          part_no: l.part_no ?? "",
          part_name: l.part_name ?? "",
          material: l.material ?? "",
          spec: l.spec ?? "",
          location: l.location ?? "",
          sub_location: l.sub_location ?? "",
          request_qty: l.request_qty ?? "0",
          out_qty: l.out_qty ? Number(l.out_qty) : "",
          out_date: l.out_date ?? "",
          acq_user: l.acq_user ?? "",
          writer_name: l.writer_name ?? "",
        })));
        setUserOpts(users);
      } catch (e: any) {
        toast.error(e?.response?.data?.message ?? e?.message ?? "조회 실패");
      } finally {
        setLoading(false);
      }
    })();
  }, [open, masterObjid]);

  const handleRow = (idx: number, patch: Partial<LineRow>) =>
    setRows(rs => rs.map((r, i) => i === idx ? { ...r, ...patch } : r));

  const handleApplyBulk = () => {
    setRows(rs => rs.map(r => ({
      ...r,
      acq_user: bulkUser || r.acq_user,
      out_date: bulkDate || r.out_date,
    })));
  };

  const handleSave = async () => {
    const lines = rows.filter(r => r.out_qty !== "" && Number(r.out_qty) > 0);
    if (!lines.length) return toast.info("불출수량을 입력해주세요.");
    for (const r of lines) {
      if (Number(r.out_qty) > Number(r.request_qty)) {
        return toast.warning(`${r.part_no}: 의뢰수량(${r.request_qty}) 초과는 불가합니다.`);
      }
      if (!r.out_date) return toast.info(`${r.part_no}: 인계일을 입력해주세요.`);
      if (!r.acq_user) return toast.info(`${r.part_no}: 인수자를 선택해주세요.`);
    }
    setSaving(true);
    try {
      await inventoryMngApi.dispatchIssue({
        master_objid: masterObjid,
        lines: lines.map(r => ({
          objid: r.objid,
          out_qty: Number(r.out_qty),
          out_date: r.out_date,
          acq_user: r.acq_user,
        })),
      });
      toast.success("자재 불출 처리가 완료되었습니다.");
      onSaved();
      onClose();
    } catch (e: any) {
      toast.error(e?.response?.data?.message ?? e?.message ?? "불출 실패");
    } finally {
      setSaving(false);
    }
  };

  return (
    <Dialog open={open} onOpenChange={(v) => !v && onClose()}>
      <DialogContent className="max-w-6xl">
        <DialogHeader>
          <DialogTitle>
            {readOnly ? "불출의뢰 상세" : "자재 불출"}
            {master?.inventory_out_no ? ` — ${master.inventory_out_no}` : ""}
          </DialogTitle>
          <DialogDescription>
            {readOnly
              ? "불출의뢰 라인을 조회합니다."
              : "라인별 불출수량 / 인계일 / 인수자를 입력하고 저장하세요."}
          </DialogDescription>
        </DialogHeader>

        {master && (
          <div className="grid grid-cols-3 gap-2 text-xs text-muted-foreground">
            <div>의뢰일: <b>{master.request_date ?? "-"}</b></div>
            <div>의뢰자: <b>{master.request_user_name ?? master.request_id ?? "-"}</b></div>
            <div>접수: <b>{master.reception_status === "reception" ? "접수" : "미접수"}</b>
              {master.reception_date ? ` / ${master.reception_date}` : ""}</div>
            <div className="col-span-3">특이사항: {master.remark || "-"}</div>
          </div>
        )}

        {!readOnly && (
          <div className="flex items-center gap-2 text-xs">
            <span>일괄적용:</span>
            <span>인계일</span>
            <div className="w-[140px]"><DateInput value={bulkDate} onChange={setBulkDate} /></div>
            <span>인수자</span>
            <div className="w-[180px]">
              <SmartSelect options={userOpts} value={bulkUser} onValueChange={setBulkUser} />
            </div>
            <Button size="sm" variant="outline" onClick={handleApplyBulk}>적용</Button>
          </div>
        )}

        <div className="overflow-x-auto text-xs">
          <table className="w-full border">
            <thead className="bg-muted/50">
              <tr>
                <th className="border px-2 py-1">품번</th>
                <th className="border px-2 py-1">품명</th>
                <th className="border px-2 py-1">규격</th>
                <th className="border px-2 py-1">재질</th>
                <th className="border px-2 py-1">Location</th>
                <th className="border px-2 py-1 text-right">의뢰수량</th>
                <th className="border px-2 py-1 text-right">불출수량</th>
                <th className="border px-2 py-1">인계일</th>
                <th className="border px-2 py-1">인수자</th>
              </tr>
            </thead>
            <tbody>
              {loading && <tr><td colSpan={9} className="border px-2 py-3 text-center">조회 중...</td></tr>}
              {!loading && rows.length === 0 && (
                <tr><td colSpan={9} className="border px-2 py-3 text-center">라인이 없습니다.</td></tr>
              )}
              {rows.map((r, i) => (
                <tr key={i}>
                  <td className="border px-2 py-1">{r.part_no}</td>
                  <td className="border px-2 py-1">{r.part_name}</td>
                  <td className="border px-2 py-1">{r.spec}</td>
                  <td className="border px-2 py-1">{r.material}</td>
                  <td className="border px-2 py-1">{r.location}{r.sub_location ? ` / ${r.sub_location}` : ""}</td>
                  <td className="border px-2 py-1 text-right">{Number(r.request_qty ?? 0).toLocaleString()}</td>
                  <td className="border px-1 py-1 w-[120px]">
                    {readOnly
                      ? <span>{r.out_qty === "" ? "" : Number(r.out_qty).toLocaleString()}</span>
                      : <NumberInput value={r.out_qty}
                          onChange={(v) => handleRow(i, { out_qty: v })} />}
                  </td>
                  <td className="border px-1 py-1 w-[140px]">
                    {readOnly ? <span>{r.out_date}</span> :
                      <DateInput value={r.out_date} onChange={(v) => handleRow(i, { out_date: v })} />}
                  </td>
                  <td className="border px-1 py-1 w-[160px]">
                    {readOnly ? <span>{r.acq_user}</span> :
                      <SmartSelect options={userOpts} value={r.acq_user}
                        onValueChange={(v) => handleRow(i, { acq_user: v })} />}
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>

        <DialogFooter>
          <Button size="sm" variant="ghost" onClick={onClose} disabled={saving}>
            <X className="h-3.5 w-3.5 mr-1" /> 닫기
          </Button>
          {!readOnly && (
            <Button size="sm" onClick={handleSave} disabled={saving || loading}>
              <Save className="h-3.5 w-3.5 mr-1" /> {saving ? "처리중..." : "자재불출"}
            </Button>
          )}
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}