import { state } from '../../core/state';
import { SoftwareAsset } from '../../core/excelHandler';
import { openModal, closeModals } from './BaseModal';
import { openSwUserModal } from './SWUserModal';
import { createIcons, History, Plus, X, Save, Edit2, RotateCcw, Calendar } from 'lucide';
import { CORP_LIST } from './SharedData';
import { 
  generateOptionsHTML, 
  setFieldValue, 
  getFieldValue, 
  setEditLock,
  applyDateMask
} from './ModalUtils';

let currentSwAsset: SoftwareAsset | null = null;
let isEditMode = false;

const SW_MODAL_HTML = `
  <div id="sw-asset-modal" class="modal-overlay hidden">
    <div class="modal-content wide">
      <div class="modal-header">
        <h2 id="sw-modal-title">소프트웨어 상세 정보</h2>
        <button id="btn-close-sw-modal" class="btn-icon" aria-label="닫기"><i data-lucide="x"></i></button>
      </div>
      <div class="modal-body">
        <div class="modal-body-split">
          <div class="modal-form-area">
            <form id="sw-asset-form" class="grid-form">
              <input type="hidden" id="sw-asset-id" />
              <input type="hidden" id="sw-asset-type" />

              <!-- Group 1: 기본 정보 (Identity) -->
              <div class="form-section-title">기본 정보 (Identity)</div>
              <div class="form-group">
                <label for="sw-분야">분야</label>
                <select id="sw-분야" required>
                  <option value="업무공통">업무공통</option>
                  <option value="개발S/W">개발S/W</option>
                  <option value="디자인">디자인</option>
                  <option value="설계S/W">설계S/W</option>
                </select>
              </div>
              <div class="form-group">
                <label for="sw-법인">법인</label>
                <select id="sw-법인" required>${generateOptionsHTML(CORP_LIST)}</select>
              </div>
              <div class="form-group sw-standard-field">
                <label for="sw-자산번호">자산번호</label>
                <input type="text" id="sw-자산번호" readonly placeholder="자동 생성" />
              </div>
              <div class="form-group full-width">
                <label for="sw-제품명">제품명 / 서비스명</label>
                <input type="text" id="sw-제품명" required />
              </div>
              <div class="form-group cloud-only">
                <label for="sw-플랫폼명">플랫폼명</label>
                <input type="text" id="sw-플랫폼명" placeholder="예: AWS, Cafe24" />
              </div>
              <div class="form-group">
                <label for="sw-부서">부서</label>
                <input type="text" id="sw-부서" />
              </div>

              <!-- Group 2: 라이선스 및 계약 (License/Contract) -->
              <div class="form-section-title">라이선스 및 계약 정보</div>
              <div class="form-group sw-standard-field" id="sw-license-type-group">
                <label for="sw-라이선스유형">라이선스 유형</label>
                <input type="text" id="sw-라이선스유형" />
              </div>
              <div class="form-group sw-standard-field" id="sw-license-key-group">
                <label for="sw-라이선스키">라이선스 키</label>
                <input type="text" id="sw-라이선스키" />
              </div>
              <div class="form-group sw-standard-field">
                <label for="sw-수량">보유 수량</label>
                <input type="number" id="sw-수량" min="0" />
              </div>
              <div class="form-group sw-standard-field">
                <label for="sw-금액">도입 금액</label>
                <input type="text" id="sw-금액" oninput="this.value = this.value.replace(/[^0-9]/g, '').replace(/\\B(?=(\\d{3})+(?!\\d))/g, ',')" />
              </div>

              <!-- Group 3: 클라우드 전용 정보 (Cloud Specific) -->
              <div class="form-group cloud-only">
                <label for="sw-계정명">계정명 (이메일)</label>
                <input type="text" id="sw-계정명" />
              </div>
              <div class="form-group cloud-only">
                <label for="sw-결제수단">결제수단</label>
                <select id="sw-결제수단">
                  <option value="">선택안함</option>
                  <option value="법인카드">법인카드</option>
                  <option value="인보이스">인보이스</option>
                </select>
              </div>
              <div class="form-group cloud-only">
                <label for="sw-연결카드번호">연결카드번호(뒷4자리)</label>
                <input type="text" id="sw-연결카드번호" maxlength="4" />
              </div>
              <div class="form-group cloud-only">
                <label for="sw-결제일">결제일 (기준일)</label>
                <input type="number" id="sw-결제일" min="1" max="31" />
              </div>
              <div class="form-group cloud-only">
                <label for="sw-당월청구액">당월 청구액(원)</label>
                <input type="text" id="sw-당월청구액" oninput="this.value = this.value.replace(/[^0-9]/g, '').replace(/\\B(?=(\\d{3})+(?!\\d))/g, ',')" />
              </div>

              <!-- Group 4: 관리 정보 (Management) -->
              <div class="form-section-title">관리 및 비고</div>
              <div class="form-group sw-standard-field">
                <label for="sw-구매일">구매일</label>
                <div style="display:flex; gap:0.25rem; align-items:center; position:relative;">
                  <input type="text" id="sw-구매일" style="flex:1;" />
                  <button type="button" class="btn-icon" onclick="const p = document.getElementById('sw-구매일-picker'); p.value = document.getElementById('sw-구매일').value; p.showPicker();" style="padding:0.25rem;">
                    <i data-lucide="calendar" style="width:18px; height:18px; color:var(--primary-color);"></i>
                  </button>
                  <input type="date" id="sw-구매일-picker" style="position:absolute; width:0; height:0; opacity:0; pointer-events:none;" onchange="document.getElementById('sw-구매일').value = this.value" tabindex="-1" />
                </div>
              </div>
              <div class="form-group sw-standard-field">
                <label for="sw-납품업체">납품업체</label>
                <input type="text" id="sw-납품업체" />
              </div>
              <div class="form-group sw-standard-field">
                <label for="sw-시작일">시작일 (구독/유지보수)</label>
                <div style="display:flex; gap:0.25rem; align-items:center; position:relative;">
                  <input type="text" id="sw-시작일" style="flex:1;" />
                  <button type="button" class="btn-icon" onclick="const p = document.getElementById('sw-시작일-picker'); p.value = document.getElementById('sw-시작일').value; p.showPicker();" style="padding:0.25rem;">
                    <i data-lucide="calendar" style="width:18px; height:18px; color:var(--primary-color);"></i>
                  </button>
                  <input type="date" id="sw-시작일-picker" style="position:absolute; width:0; height:0; opacity:0; pointer-events:none;" onchange="document.getElementById('sw-시작일').value = this.value" tabindex="-1" />
                </div>
              </div>
              <div class="form-group sw-standard-field" id="sw-expiry-group">
                <label for="sw-만료일">만료일 (종료일)</label>
                <div style="display:flex; gap:0.25rem; align-items:center; position:relative;">
                  <input type="text" id="sw-만료일" style="flex:1;" />
                  <button type="button" class="btn-icon" onclick="const p = document.getElementById('sw-만료일-picker'); p.value = document.getElementById('sw-만료일').value; p.showPicker();" style="padding:0.25rem;">
                    <i data-lucide="calendar" style="width:18px; height:18px; color:var(--primary-color);"></i>
                  </button>
                  <input type="date" id="sw-만료일-picker" style="position:absolute; width:0; height:0; opacity:0; pointer-events:none;" onchange="document.getElementById('sw-만료일').value = this.value" tabindex="-1" />
                </div>
              </div>
              <div class="form-group full-width">
                <label for="sw-비고">비고</label>
                <textarea id="sw-비고" rows="2"></textarea>
              </div>
            </form>

            <div id="sw-user-section" class="user-management-section" style="margin-top: 2rem;">
              <div class="section-header" style="display:flex; justify-content:space-between; align-items:center; margin-bottom:1rem;">
                <h3 style="font-size:1rem; font-weight:600;">사용자 할당 현황</h3>
                <button type="button" id="btn-open-sw-user" class="btn btn-outline btn-sm">
                  할당 관리 <i data-lucide="users" style="width:14px; height:14px;"></i>
                </button>
              </div>
              <div id="sw-assigned-users-summary" class="user-summary-grid"></div>
            </div>
          </div>

          <div class="modal-history-area">
            <div class="history-header" style="display:flex; justify-content:space-between; align-items:center;">
              <h3><i data-lucide="history" style="width:16px; height:16px;"></i> 업데이트 내역</h3>
              <button type="button" id="btn-open-sw-update" class="btn btn-outline btn-sm">
                계약 업데이트 <i data-lucide="refresh-ccw" style="width:14px; height:14px;"></i>
              </button>
            </div>
            <div id="sw-history-list" class="history-timeline"></div>
          </div>
        </div>
      </div>
      <div class="modal-footer">
        <button id="btn-delete-sw-asset" class="btn btn-outline btn-danger">삭제</button>
        <div class="footer-actions">
          <button id="btn-revert-sw-edit" class="btn btn-outline hidden">수정 취소</button>
          <button id="btn-cancel-sw-modal" class="btn btn-outline">닫기</button>
          <button id="btn-save-sw-asset" class="btn btn-primary">수정</button>
        </div>
      </div>
    </div>
  </div>

  <!-- 계약/유지보수 기간 갱신 및 업데이트 모달 -->
  <div id="sw-update-modal" class="modal-overlay hidden" style="z-index: 1100;">
    <div class="modal-content" style="max-width: 400px;">
      <div class="modal-header">
        <h2>계약 업데이트 반영</h2>
        <button id="btn-close-sw-update" class="btn-icon"><i data-lucide="x"></i></button>
      </div>
      <div class="modal-body">
        <div class="grid-form" style="grid-template-columns: 1fr;">
          <div class="form-group">
            <label>업데이트 일자</label>
            <input type="date" id="sw-update-date" />
          </div>
          <div class="form-group sub-sw-update">
            <label>새로운 계약 기간</label>
            <div style="display: flex; align-items: center; gap: 0.5rem;">
              <input type="text" id="sw-update-start" placeholder="YYYY-MM-DD" style="flex: 1;" />
              <span>~</span>
              <input type="text" id="sw-update-end" placeholder="YYYY-MM-DD" style="flex: 1;" />
            </div>
          </div>
          <div class="form-group perm-sw-update" style="display:none;">
            <label>유지보수 체결 (상태 연동)</label>
            <label style="display:flex; align-items:center; gap:0.5rem; height: 38px; cursor: pointer;">
              <input type="checkbox" id="sw-update-maintenance" /> 유효 상태로 갱신
            </label>
          </div>
          <div class="form-group">
            <label>발생 비용</label>
            <input type="text" id="sw-update-cost" oninput="this.value = this.value.replace(/[^0-9]/g, '') ? Number(this.value.replace(/[^0-9]/g, '')).toLocaleString() : ''" placeholder="ex) 500,000" />
          </div>
          <div class="form-group">
            <label>상세 내용 (메모)</label>
            <input type="text" id="sw-update-note" placeholder="예: 25년도 구독 연장 결제 완료" />
          </div>
        </div>
      </div>
      <div class="modal-footer">
        <div></div>
        <div class="footer-actions">
          <button id="btn-cancel-sw-update" class="btn btn-outline">취소</button>
          <button id="btn-save-sw-update" class="btn btn-primary">반영하기</button>
        </div>
      </div>
    </div>
  </div>
`;

function applySwTypeUI(type: string) {
  const cloudFields = document.querySelectorAll('.cloud-only');
  const swFields = document.querySelectorAll('.sw-standard-field');
  const userSection = document.getElementById('sw-user-section');
  const keyGroup = document.getElementById('sw-license-key-group');
  const typeGroup = document.getElementById('sw-license-type-group');
  const expiryGroup = document.getElementById('sw-expiry-group');

  if (type === '클라우드') {
    cloudFields.forEach(el => (el as HTMLElement).style.display = 'flex');
    swFields.forEach(el => (el as HTMLElement).style.display = 'none');
    if (userSection) userSection.style.display = 'none';
  } else {
    cloudFields.forEach(el => (el as HTMLElement).style.display = 'none');
    swFields.forEach(el => (el as HTMLElement).style.display = 'flex');
    if (userSection) userSection.style.display = 'block';

    if (type === '구독SW') {
      if (keyGroup) keyGroup.style.display = 'none';
      if (typeGroup) typeGroup.style.display = 'flex';
      if (expiryGroup) expiryGroup.style.display = 'flex';
    } else {
      if (keyGroup) keyGroup.style.display = 'flex';
      if (typeGroup) typeGroup.style.display = 'none';
      if (expiryGroup) expiryGroup.style.display = 'flex';
    }
  }
}

function fillSwFormData(asset: SoftwareAsset) {
  setFieldValue('sw-asset-id', asset.id);
  setFieldValue('sw-asset-type', asset.type);
  setFieldValue('sw-분야', asset.분야 || '업무공통');
  setFieldValue('sw-법인', asset.법인);
  setFieldValue('sw-자산번호', asset.자산번호 || '');
  setFieldValue('sw-부서', asset.부서 || '');
  setFieldValue('sw-제품명', asset.제품명);
  setFieldValue('sw-수량', asset.수량);
  setFieldValue('sw-금액', asset.금액);
  setFieldValue('sw-구매일', asset.구매일 || '');
  setFieldValue('sw-시작일', asset.시작일 || '');
  setFieldValue('sw-납품업체', asset.납품업체 || '');
  setFieldValue('sw-비고', asset.비고 || '');

  if (asset.type === '클라우드') {
    setFieldValue('sw-플랫폼명', (asset as any).플랫폼명 || '');
    setFieldValue('sw-계정명', (asset as any).계정명 || '');
    setFieldValue('sw-결제수단', (asset as any).결제수단 || '');
    setFieldValue('sw-연결카드번호', (asset as any).연결카드번호 || '');
    setFieldValue('sw-결제일', (asset as any).결제일 || '');
    setFieldValue('sw-당월청구액', (asset as any).당월청구액 || '');
  } else if (asset.type === '구독SW') {
    setFieldValue('sw-라이선스유형', (asset as any).라이선스유형 || '');
    setFieldValue('sw-만료일', (asset as any).만료일 || '');
  } else {
    setFieldValue('sw-라이선스키', (asset as any).라이선스키 || '');
  }

  renderUserSummary(asset.id);
  renderSwHistory(asset.id);
}

function renderUserSummary(swId: string) {
  const container = document.getElementById('sw-assigned-users-summary');
  if (!container) return;
  const userMapping = state.masterData.swUsers.find(u => u.sw_id === swId);
  if (!userMapping || !userMapping.userData || userMapping.userData.length === 0) {
    container.innerHTML = '<div class="empty-summary">할당된 사용자가 없습니다.</div>';
    return;
  }
  container.innerHTML = userMapping.userData.map(u => `
    <div class="user-badge-item">
      <span class="u-name">${u[3] || '이름없음'}</span>
      <span class="u-dept">${u[1] || '부서없음'}</span>
    </div>
  `).join('');
}

function renderSwHistory(swId: string) {
  const container = document.getElementById('sw-history-list');
  if (!container) return;
  const logs = (state.masterData.logs || []).filter(l => l.assetId === swId);
  if (logs.length === 0) {
    container.innerHTML = '<div class="empty-history">수정 이력이 없습니다.</div>';
    return;
  }
  container.innerHTML = logs.map(l => `
    <div class="history-item">
      <div class="history-date">${l.date}</div>
      <div class="history-user">${l.user}</div>
      <div class="history-details">${l.details}</div>
    </div>
  `).join('');
}

export function openSwModal(asset: SoftwareAsset, mode: 'view' | 'add' | 'edit' = 'view') {
  currentSwAsset = asset;
  const modal = document.getElementById('sw-asset-modal')!;
  
  // 수정 잠금 상태 제어
  setEditLock('sw-asset-form', mode, {
    saveBtnId: 'btn-save-sw-asset',
    revertBtnId: 'btn-revert-sw-edit'
  });

  isEditMode = (mode === 'add' || mode === 'edit');
  
  fillSwFormData(asset);
  applySwTypeUI(asset.type);

  modal.classList.remove('hidden');
  createIcons({ icons: { X, History, Plus } });
}

export function initSwModal(onSave: () => void, closeModals: () => void) {
  if (!document.getElementById('sw-asset-modal')) {
    document.body.insertAdjacentHTML('beforeend', SW_MODAL_HTML);
  }

  const form = document.getElementById('sw-asset-form') as HTMLFormElement;
  const saveBtn = document.getElementById('btn-save-sw-asset')!;
  const revertBtn = document.getElementById('btn-revert-sw-edit')!;
  const deleteBtn = document.getElementById('btn-delete-sw-asset')!;
  const userAssignBtn = document.getElementById('btn-open-sw-user')!;
  const btnOpenUpdate = document.getElementById('btn-open-sw-update')!;

  // 날짜 스마트 마스킹 적용
  ['sw-구매일', 'sw-시작일', 'sw-만료일', 'sw-update-start', 'sw-update-end'].forEach(id => {
    applyDateMask(document.getElementById(id) as HTMLInputElement);
  });

  createIcons({ icons: { Calendar } });

  const closeModalAction = () => { closeModals(); isEditMode = false; };
  document.getElementById('btn-close-sw-modal')?.addEventListener('click', closeModalAction);
  document.getElementById('btn-cancel-sw-modal')?.addEventListener('click', closeModalAction);

  revertBtn.addEventListener('click', () => {
    setEditLock('sw-asset-form', 'view', {
      saveBtnId: 'btn-save-sw-asset',
      revertBtnId: 'btn-revert-sw-edit'
    });
    isEditMode = false;
    if (currentSwAsset) fillSwFormData(currentSwAsset);
  });

  saveBtn.addEventListener('click', () => {
    if (!currentSwAsset) return;
    if (!isEditMode) {
      setEditLock('sw-asset-form', 'edit', {
        saveBtnId: 'btn-save-sw-asset',
        revertBtnId: 'btn-revert-sw-edit'
      });
      isEditMode = true;
      return;
    }

    const type = getFieldValue('sw-asset-type');
    const updated: any = {
      ...currentSwAsset,
      분야: getFieldValue('sw-분야'),
      법인: getFieldValue('sw-법인'),
      부서: getFieldValue('sw-부서'),
      자산번호: getFieldValue('sw-자산번호'),
      제품명: getFieldValue('sw-제품명'),
      수량: parseInt(getFieldValue('sw-수량') || '0'),
      금액: getFieldValue('sw-금액'),
      구매일: getFieldValue('sw-구매일'),
      시작일: getFieldValue('sw-시작일'),
      납품업체: getFieldValue('sw-납품업체'),
      비고: getFieldValue('sw-비고'),
      type: type
    };

    if (type === '클라우드') {
      updated.플랫폼명 = getFieldValue('sw-플랫폼명');
      updated.계정명 = getFieldValue('sw-계정명');
      updated.결제수단 = getFieldValue('sw-결제수단');
      updated.연결카드번호 = getFieldValue('sw-연결카드번호');
      updated.결제일 = getFieldValue('sw-결제일');
      updated.당월청구액 = getFieldValue('sw-당월청구액');
    } else if (type === '구독SW') {
      updated.라이선스유형 = getFieldValue('sw-라이선스유형');
      updated.만료일 = getFieldValue('sw-만료일');
    } else {
      updated.라이선스키 = getFieldValue('sw-라이선스키');
    }

    // 데이터 저장 로직 (state 업데이트)
    let targetList: SoftwareAsset[] = [];
    if (type === '구독SW') targetList = state.masterData.subSw;
    else if (type === '영구SW') targetList = state.masterData.permSw;
    else if (type === '클라우드') targetList = state.masterData.cloud;

    const idx = targetList.findIndex(a => a.id === updated.id);
    if (idx > -1) targetList[idx] = updated;
    else targetList.push(updated);

    onSave();
    setEditLock('sw-asset-form', 'view', {
      saveBtnId: 'btn-save-sw-asset',
      revertBtnId: 'btn-revert-sw-edit'
    });
    isEditMode = false;
  });

  deleteBtn.addEventListener('click', () => {
    if (!currentSwAsset) return;
    if (confirm('삭제하시겠습니까?')) {
      const type = currentSwAsset.type;
      if (type === '구독SW') state.masterData.subSw = state.masterData.subSw.filter(a => a.id !== currentSwAsset!.id);
      else if (type === '영구SW') state.masterData.permSw = state.masterData.permSw.filter(a => a.id !== currentSwAsset!.id);
      else if (type === '클라우드') state.masterData.cloud = state.masterData.cloud.filter(a => a.id !== currentSwAsset!.id);
      onSave();
      closeModalAction();
    }
  });

  userAssignBtn.addEventListener('click', () => {
    if (currentSwAsset) openSwUserModal(currentSwAsset);
  });

  // 자산 업데이트(계약 갱신) 모달 로직
  const subModal = document.getElementById('sw-update-modal')!;
  const btnCloseUpdate = document.getElementById('btn-close-sw-update')!;
  const btnCancelUpdate = document.getElementById('btn-cancel-sw-update')!;
  const btnSaveUpdate = document.getElementById('btn-save-sw-update')!;

  const closeUpdateModal = () => subModal.classList.add('hidden');
  btnCloseUpdate?.addEventListener('click', closeUpdateModal);
  btnCancelUpdate?.addEventListener('click', closeUpdateModal);

  btnOpenUpdate?.addEventListener('click', (e) => {
    e.preventDefault();
    if (!isEditMode) {
      alert('자산을 수정 모드로 변경한 후 업데이트를 진행해주세요.');
      return;
    }
    
    const isSub = getFieldValue('sw-asset-type') === '구독SW';
    subModal.classList.remove('hidden');
    
    (document.getElementById('sw-update-date') as HTMLInputElement).value = new Date().toISOString().substring(0, 10);
    (document.getElementById('sw-update-start') as HTMLInputElement).value = '';
    (document.getElementById('sw-update-end') as HTMLInputElement).value = '';
    (document.getElementById('sw-update-cost') as HTMLInputElement).value = '';
    (document.getElementById('sw-update-note') as HTMLInputElement).value = '';

    if (isSub) {
      document.querySelector('.sub-sw-update')!.setAttribute('style', 'display:flex; flex-direction:column;');
      document.querySelector('.perm-sw-update')!.setAttribute('style', 'display:none');
    } else {
      document.querySelector('.sub-sw-update')!.setAttribute('style', 'display:none');
      document.querySelector('.perm-sw-update')!.setAttribute('style', 'display:flex; flex-direction:column;');
      (document.getElementById('sw-update-maintenance') as HTMLInputElement).checked = (document.getElementById('sw-유지보수여부') as HTMLInputElement).checked;
    }
  });

  btnSaveUpdate?.addEventListener('click', (e) => {
    e.preventDefault();
    const isSub = getFieldValue('sw-asset-type') === '구독SW';
    const date = (document.getElementById('sw-update-date') as HTMLInputElement).value;
    const start = (document.getElementById('sw-update-start') as HTMLInputElement).value;
    const end = (document.getElementById('sw-update-end') as HTMLInputElement).value;
    const maintenance = (document.getElementById('sw-update-maintenance') as HTMLInputElement).checked;
    const cost = (document.getElementById('sw-update-cost') as HTMLInputElement).value;
    const note = (document.getElementById('sw-update-note') as HTMLInputElement).value;

    const periodStr = (start || end) ? `${start || ''} ~ ${end || ''}` : '';

    let details = `[업데이트] ${note || (isSub ? '구독 갱신' : '유지보수 갱신')}\n`;
    if (cost) details += `비용 추가: ${cost}원\n`;

    if (isSub) {
      if (periodStr) details += `계약 변경: -> ${periodStr}\n`;
      // 메인 폼에 시작일 만료일 자동 세팅
      if (start) setFieldValue('sw-시작일', start);
      if (end) setFieldValue('sw-만료일', end);
    } else {
      details += `유지보수 상태: -> ${maintenance ? '유효' : '만료'}\n`;
      (document.getElementById('sw-유지보수여부') as HTMLInputElement).checked = maintenance;
    }
    
    // 금액 갱신 (선택사항)
    if (cost) setFieldValue('sw-금액', cost);

    // 이력 탭 갱신 (메모리상)
    if (!state.masterData.logs) state.masterData.logs = [];
    state.masterData.logs.push({
      id: Math.random().toString(36).substring(2, 9),
      assetId: currentSwAsset ? currentSwAsset.id : 'NEW',
      date,
      details,
      user: '관리자'
    });

    closeUpdateModal();
    renderSwHistory(currentSwAsset ? currentSwAsset.id : '');
  });
}