/**
 * 검증 이슈 등록·수정 모달
 */
import React, { useEffect, useState } from 'react';
import type { VerificationIssueDto } from '../../utils/verificationBoardApi';
import {
  VERIFICATION_ISSUE_STAGES,
  type VerificationIssueStage,
} from '../../utils/verificationBoardStages';
import ReproductionPathInput from './ReproductionPathInput';
import VerificationIssueAttachmentsSection from './VerificationIssueAttachmentsSection';

interface Props {
  open: boolean;
  initial: VerificationIssueDto | null;
  saving: boolean;
  onSave: (dto: VerificationIssueDto, pendingImages: File[]) => void;
  onCancel: () => void;
}

const EMPTY: VerificationIssueDto = {
  title: '',
  content: '',
  reproductionPath: '',
  stage: 'REGISTERED',
};

const VerificationIssueFormModal: React.FC<Props> = ({
  open, initial, saving, onSave, onCancel,
}) => {
  const [title, setTitle] = useState('');
  const [content, setContent] = useState('');
  const [reproductionPath, setReproductionPath] = useState('');
  const [stage, setStage] = useState<VerificationIssueStage>('REGISTERED');
  const [draftImages, setDraftImages] = useState<File[]>([]);

  useEffect(() => {
    if (!open) return;
    setTitle(initial?.title ?? '');
    setContent(initial?.content ?? '');
    setReproductionPath(initial?.reproductionPath ?? '');
    setStage(initial?.stage ?? 'REGISTERED');
    setDraftImages([]);
  }, [open, initial]);

  if (!open) return null;

  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();
    const trimmed = title.trim();
    if (!trimmed) {
      window.alert('제목을 입력하세요.');
      return;
    }
    const pathTrimmed = reproductionPath.trim();
    onSave({
      ...(initial?.id != null ? { id: initial.id } : {}),
      title: trimmed,
      content: content.trim(),
      reproductionPath: pathTrimmed || undefined,
      stage,
    }, initial?.id == null ? draftImages : []);
  };

  return (
    <div className="vbd-modal-overlay" onMouseDown={e => { if (e.target === e.currentTarget) onCancel(); }}>
      <div className="vbd-modal vbd-modal--wide" role="dialog" aria-modal="true" aria-labelledby="vbd-modal-title">
        <div className="vbd-modal-header">
          <h3 id="vbd-modal-title">{initial?.id != null ? '검증 이슈 수정' : '검증 이슈 등록'}</h3>
          <button type="button" className="vbd-modal-close" onClick={onCancel} aria-label="닫기">✕</button>
        </div>
        <form className="vbd-modal-form" onSubmit={handleSubmit}>
          <label className="vbd-field">
            <span className="vbd-field-label">단계</span>
            <select
              value={stage}
              onChange={e => setStage(e.target.value as VerificationIssueStage)}
            >
              {VERIFICATION_ISSUE_STAGES.map(s => (
                <option key={s.value} value={s.value}>{s.label}</option>
              ))}
            </select>
          </label>
          <label className="vbd-field">
            <span className="vbd-field-label">제목</span>
            <input
              type="text"
              value={title}
              onChange={e => setTitle(e.target.value)}
              maxLength={300}
              autoFocus
              placeholder="검증 이슈 제목"
            />
          </label>
          <label className="vbd-field">
            <span className="vbd-field-label">재현경로</span>
            <ReproductionPathInput
              value={reproductionPath}
              onChange={setReproductionPath}
              disabled={saving}
            />
            <span className="vbd-field-hint">
              직접 입력하거나, 입력 시 관련 메뉴 경로를 선택해 자동 입력할 수 있습니다.
            </span>
          </label>
          <label className="vbd-field vbd-field--grow">
            <span className="vbd-field-label">내용</span>
            <textarea
              value={content}
              onChange={e => setContent(e.target.value)}
              rows={10}
              placeholder="문제점·재현 방법·기대 결과 등"
            />
          </label>
          <VerificationIssueAttachmentsSection
            issueId={initial?.id ?? null}
            draftFiles={draftImages}
            onDraftFilesChange={setDraftImages}
            disabled={saving}
            compact
          />
          <div className="vbd-modal-actions">
            <button type="button" className="vbd-btn" onClick={onCancel} disabled={saving}>취소</button>
            <button type="submit" className="vbd-btn vbd-btn--primary" disabled={saving}>
              {saving ? '저장 중…' : '저장'}
            </button>
          </div>
        </form>
      </div>
    </div>
  );
};

export default VerificationIssueFormModal;