import { state } from '../../core/state';
import { SoftwareAsset, SWUser } from '../../core/excelHandler';
import { openModal } from './BaseModal';
import { createIcons, Edit2, X, Paperclip } from 'lucide';

let currentSwUserAssetId: string = '';
let tempSwUsers: SWUser[] = [];

const SW_USER_MODAL_HTML = `
  <!-- S/W 할당 사용자 목록 모달 -->
  <div id="sw-user-modal" class="modal-overlay hidden">
    <div class="modal-content" style="max-width: 800px;">
      <div class="modal-header">
        <h2 id="sw-user-modal-title">S/W 할당 사용자 목록</h2>
        <button id="btn-close-sw-user-modal" class="btn-icon" aria-label="닫기"><i data-lucide="x"></i></button>
      </div>
      <div class="modal-body">
        <input type="hidden" id="sw-user-asset-id" />
        <div style="text-align: right; margin-bottom: 0.75rem;">
          <button type="button" id="btn-open-add-user" class="btn btn-primary btn-sm"><i data-lucide="plus"></i> 사용자 추가</button>
        </div>
        <div class="table-container">
          <table style="width:100%;">
            <thead>
              <tr>
                <th>법인</th>
                <th>부서/팀</th>
                <th>직위</th>
                <th>이름</th>
                <th>사용기간</th>
                <th>증빙</th>
                <th style="text-align:center;">관리</th>
              </tr>
            </thead>
            <tbody id="user-list-body"></tbody>
          </table>
        </div>
      </div>
      <div class="modal-footer">
        <div></div>
        <div class="footer-actions">
          <button id="btn-save-sw-user-mapping" class="btn btn-primary">변경사항 저장</button>
          <button id="btn-cancel-sw-user-modal" class="btn btn-outline">닫기</button>
        </div>
      </div>
    </div>
  </div>

  <!-- 사용자 추가/수정 서브 모달 -->
  <div id="sw-user-edit-modal" class="modal-overlay hidden" style="z-index: 1100;">
    <div class="modal-content" style="max-width: 500px;">
      <div class="modal-header">
        <h2 id="sw-user-edit-modal-title">사용자 정보</h2>
        <button id="btn-close-sw-user-edit" class="btn-icon"><i data-lucide="x"></i></button>
      </div>
      <div class="modal-body">
        <input type="hidden" id="edit-user-idx" />
        <div class="grid-form" style="grid-template-columns: 1fr;">
          <div class="form-group">
            <label>법인</label>
            <select id="new-user-법인">
              <option value="한맥">한맥</option><option value="삼안">삼안</option><option value="바론">바론</option>
            </select>
          </div>
          <div class="form-group">
            <label>부서</label>
            <input type="text" id="new-user-부서" />
          </div>
          <div class="form-group">
            <label>팀</label>
            <input type="text" id="new-user-팀" />
          </div>
          <div class="form-group">
            <label>직위</label>
            <input type="text" id="new-user-직위" />
          </div>
          <div class="form-group">
            <label>이름</label>
            <input type="text" id="new-user-이름" required />
          </div>
          <div class="form-group">
            <label>사용기간</label>
            <input type="text" id="new-user-사용기간" placeholder="ex) 2024.01 ~ 2024.12" />
          </div>
          <div class="form-group">
            <label>신청서 (증빙파일)</label>
            <input type="file" id="new-user-신청서" />
            <span id="new-user-신청서명" style="font-size:0.75rem; color:var(--text-muted);"></span>
          </div>
        </div>
      </div>
      <div class="modal-footer">
        <button id="btn-cancel-sw-user-edit" class="btn btn-outline">취소</button>
        <button id="btn-save-edit-user" class="btn btn-primary">확인</button>
      </div>
    </div>
  </div>
`;

export function initSwUserModal(renderContent: () => void, closeModals: () => void) {
  if (!document.getElementById('sw-user-modal')) {
    document.body.insertAdjacentHTML('beforeend', SW_USER_MODAL_HTML);
  }

  const btnOpenAddUser = document.getElementById('btn-open-add-user');
  const btnSaveEditUser = document.getElementById('btn-save-edit-user');
  const btnSaveSwUserMapping = document.getElementById('btn-save-sw-user-mapping');
  const btnCancelUserEdit = document.getElementById('btn-cancel-sw-user-edit');
  const btnCloseUserEdit = document.getElementById('btn-close-sw-user-edit');
  const btnCancelUserModal = document.getElementById('btn-cancel-sw-user-modal');
  const btnCloseUserModal = document.getElementById('btn-close-sw-user-modal');

  btnOpenAddUser?.addEventListener('click', () => openUserEditModal(-1));
  btnSaveEditUser?.addEventListener('click', () => saveUserEdit());
  
  btnSaveSwUserMapping?.addEventListener('click', () => {
    state.masterData.swUsers = state.masterData.swUsers.filter(u => u.swId !== currentSwUserAssetId);
    state.masterData.swUsers.push(...tempSwUsers);
    document.getElementById('sw-user-modal')?.classList.add('hidden');
    renderContent();
  });

  btnCancelUserEdit?.addEventListener('click', () => document.getElementById('sw-user-edit-modal')?.classList.add('hidden'));
  btnCloseUserEdit?.addEventListener('click', () => document.getElementById('sw-user-edit-modal')?.classList.add('hidden'));
  btnCancelUserModal?.addEventListener('click', () => document.getElementById('sw-user-modal')?.classList.add('hidden'));
  btnCloseUserModal?.addEventListener('click', () => document.getElementById('sw-user-modal')?.classList.add('hidden'));
}

function renderUserList() {
  const tbody = document.getElementById('user-list-body')!;
  tbody.innerHTML = '';
  if (tempSwUsers.length === 0) {
    tbody.innerHTML = '<tr><td colspan="7" style="padding: 2rem; text-align: center; color: var(--text-muted);">할당된 사용자가 없습니다.</td></tr>';
    return;
  }
  
  tempSwUsers.forEach((user, idx) => {
    const tr = document.createElement('tr');
    const deptTeam = [user.부서, user.팀].filter(Boolean).join(' / ') || '-';
    const attachIcon = user.신청서명 ? `<i data-lucide="paperclip" class="text-primary" style="width:16px; height:16px;" title="${user.신청서명}"></i>` : '-';
    
    tr.innerHTML = `
      <td>${user.법인}</td>
      <td>${deptTeam}</td>
      <td>${user.직위 || '-'}</td>
      <td><strong>${user.이름}</strong></td>
      <td style="text-align:center;">${user.사용기간 || '-'}</td>
      <td style="text-align:center;">${attachIcon}</td>
      <td style="text-align:center;">
        <button type="button" class="btn-icon btn-edit-user" data-idx="${idx}" style="color: var(--primary-color);"><i data-lucide="edit-2" style="width:14px; height:14px;"></i></button>
        <button type="button" class="btn-icon btn-remove-user" data-idx="${idx}" style="color: var(--danger);"><i data-lucide="x" style="width:14px; height:14px;"></i></button>
      </td>
    `;
    tbody.appendChild(tr);
  });
  
  createIcons({ icons: { Edit2, X, Paperclip } });
  
  tbody.querySelectorAll('.btn-edit-user').forEach(btn => {
    btn.addEventListener('click', (e) => {
      const idx = parseInt((e.currentTarget as HTMLElement).getAttribute('data-idx')!);
      openUserEditModal(idx);
    });
  });
  
  tbody.querySelectorAll('.btn-remove-user').forEach(btn => {
    btn.addEventListener('click', (e) => {
      const idx = parseInt((e.currentTarget as HTMLButtonElement).getAttribute('data-idx')!);
      tempSwUsers.splice(idx, 1);
      renderUserList();
    });
  });
}

export function openSwUserModal(asset: SoftwareAsset) {
  openModal('sw-user-modal');
  currentSwUserAssetId = asset.id;
  tempSwUsers = state.masterData.swUsers.filter(u => u.swId === asset.id).map(u => ({...u}));
  renderUserList();
}

function openUserEditModal(idx: number) {
  const editModal = document.getElementById('sw-user-edit-modal')!;
  editModal.classList.remove('hidden');
  (document.getElementById('edit-user-idx') as HTMLInputElement).value = String(idx);
  
  if (idx === -1) {
    document.getElementById('sw-user-edit-modal-title')!.innerText = '새 사용자 추가';
    (document.getElementById('new-user-법인') as HTMLSelectElement).value = '한맥';
    (document.getElementById('new-user-부서') as HTMLInputElement).value = '';
    (document.getElementById('new-user-팀') as HTMLInputElement).value = '';
    (document.getElementById('new-user-직위') as HTMLInputElement).value = '';
    (document.getElementById('new-user-이름') as HTMLInputElement).value = '';
    (document.getElementById('new-user-사용기간') as HTMLInputElement).value = '';
    (document.getElementById('new-user-신청서') as HTMLInputElement).value = '';
    document.getElementById('new-user-신청서명')!.innerText = '';
  } else {
    document.getElementById('sw-user-edit-modal-title')!.innerText = '사용자 정보 수정';
    const u = tempSwUsers[idx];
    (document.getElementById('new-user-법인') as HTMLSelectElement).value = u.법인;
    (document.getElementById('new-user-부서') as HTMLInputElement).value = u.부서;
    (document.getElementById('new-user-팀') as HTMLInputElement).value = u.팀;
    (document.getElementById('new-user-직위') as HTMLInputElement).value = u.직위;
    (document.getElementById('new-user-이름') as HTMLInputElement).value = u.이름;
    (document.getElementById('new-user-사용기간') as HTMLInputElement).value = u.사용기간;
    (document.getElementById('new-user-신청서') as HTMLInputElement).value = '';
    document.getElementById('new-user-신청서명')!.innerText = u.신청서명 ? `첨부: ${u.신청서명}` : '';
  }
}

function saveUserEdit() {
  const idx = parseInt((document.getElementById('edit-user-idx') as HTMLInputElement).value);
  const 이름 = (document.getElementById('new-user-이름') as HTMLInputElement).value.trim();
  if (!이름) { alert('이름을 입력해주세요.'); return; }

  const fileInput = document.getElementById('new-user-신청서') as HTMLInputElement;
  let 신청서명 = '';
  if (fileInput.files && fileInput.files.length > 0) {
    신청서명 = fileInput.files[0].name;
  } else if (idx !== -1) {
    신청서명 = tempSwUsers[idx].신청서명;
  }

  const userData: SWUser = {
    id: idx === -1 ? Math.random().toString(36).substring(2, 9) : tempSwUsers[idx].id,
    swId: currentSwUserAssetId,
    법인: (document.getElementById('new-user-법인') as HTMLSelectElement).value,
    부서: (document.getElementById('new-user-부서') as HTMLInputElement).value,
    팀: (document.getElementById('new-user-팀') as HTMLInputElement).value,
    직위: (document.getElementById('new-user-직위') as HTMLInputElement).value,
    이름,
    사용기간: (document.getElementById('new-user-사용기간') as HTMLInputElement).value,
    신청서명
  };
  
  if (idx === -1) tempSwUsers.push(userData);
  else tempSwUsers[idx] = userData;
  
  document.getElementById('sw-user-edit-modal')?.classList.add('hidden');
  renderUserList();
}