@extends('layouts.app')
@section('title', '帳號管理')

@push('styles')
  <style>
    .role-filter-btn { width: 100%; text-align: left; border-radius: 6px; margin-bottom: 4px; }
    .role-filter-btn.active { font-weight: 600; }
  </style>
@endpush

@section('content')
  <div class="container-fluid py-4">

    @if (session('success'))
      <div class="alert alert-success alert-dismissible fade show" role="alert">
        {{ session('success') }}
        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="關閉"></button>
      </div>
    @endif

    <h1 class="mb-4">帳號管理</h1>

    <div class="row g-3">
      {{-- 左側篩選 --}}
      <div class="col-md-2">
        <div class="card shadow-sm">
          <div class="card-header py-2 fw-semibold">角色篩選</div>
          <div class="card-body p-2">
            <button class="btn btn-outline-secondary role-filter-btn active" data-role="">全部</button>
            <button class="btn btn-outline-danger   role-filter-btn" data-role="admin">管理者</button>
            <button class="btn btn-outline-warning  role-filter-btn" data-role="supervisor">主管</button>
            <button class="btn btn-outline-primary  role-filter-btn" data-role="user">使用者</button>
          </div>
        </div>

        <div class="card shadow-sm mt-3">
          <div class="card-header py-2 fw-semibold">操作</div>
          <div class="card-body p-2 d-flex flex-column gap-2">
            <a href="{{ route('users.create') }}" class="btn btn-success btn-sm w-100">
              <i class="bi bi-person-plus-fill me-1"></i>新增帳號
            </a>
            @if($showInactive)
              <a href="{{ route('users.index') }}" class="btn btn-secondary btn-sm w-100">
                <i class="bi bi-eye-slash me-1"></i>隱藏停用帳號
              </a>
            @else
              <a href="{{ route('users.index', ['show_inactive' => 1]) }}" class="btn btn-outline-secondary btn-sm w-100">
                <i class="bi bi-eye me-1"></i>顯示停用帳號
              </a>
            @endif
          </div>
        </div>
      </div>

      {{-- 右側表格 --}}
      <div class="col-md-10">

        {{-- 批次操作列 --}}
        <div id="batchBar" style="display:none;position:sticky;top:66px;z-index:100;background:#1e40af;color:#fff;padding:8px 16px;border-radius:8px;margin-bottom:10px;align-items:center;gap:12px;">
          <span class="fw-semibold me-2">已選 <span id="batchCnt">0</span> 筆</span>
          <form id="batchForm" method="POST" action="{{ route('users.destroyBatch') }}" style="display:inline;">
            @csrf @method('DELETE')
            <div id="batchIds"></div>
            <button type="button" id="batchDelBtn" class="btn btn-sm btn-danger me-2">
              <i class="bi bi-trash me-1"></i>批次刪除
            </button>
          </form>
          <button type="button" id="batchCancelBtn" class="btn btn-sm btn-outline-light">取消選取</button>
        </div>

        <div class="card shadow-sm">
          <div class="card-body table-responsive">
            <table id="clientsTable" class="table table-striped table-bordered align-middle">
              <thead class="table-light">
                <tr>
                  <th style="width:36px;" class="text-center">
                    <input type="checkbox" id="chkAll" class="form-check-input" title="全選">
                  </th>
                  <th class="text-center text-muted" style="width:48px;font-size:.75rem;">#</th>
                  <th>角色</th>
                  <th>姓名</th>
                  <th>Email</th>
                  <th>部門</th>
                  <th>職稱</th>
                  <th>註冊日期</th>
                  <th>狀態</th>
                  <th>操作</th>
                </tr>
              </thead>
              <tbody>
                @foreach ($users as $user)
                  <tr>
                    <td class="text-center">
                      <input type="checkbox" class="form-check-input row-cb" value="{{ $user->id }}" data-name="ids[]">
                    </td>
                    <td class="text-center text-muted" style="font-size:.75rem;">{{ $loop->iteration }}</td>
                    <td data-role="{{ $user->role }}">
                      @if($user->role === 'admin')
                        <span class="badge bg-danger">管理者</span>
                      @elseif($user->role === 'supervisor')
                        <span class="badge bg-warning text-dark">主管</span>
                      @else
                        <span class="badge bg-primary">使用者</span>
                      @endif
                    </td>
                    <td>{{ $user->name }}</td>
                    <td>{{ $user->email }}</td>
                    <td>{{ $user->department }}</td>
                    <td>{{ $user->position }}</td>
                    <td>{{ $user->created_at->format('Y-m-d') }}</td>
                    <td>
                      @if ($user->is_active)
                        <span class="badge bg-success">啟用</span>
                      @else
                        <span class="badge bg-secondary">停用</span>
                      @endif
                    </td>
                    <td>
                      <a href="{{ route('users.edit', $user) }}" class="btn btn-sm btn-warning">編輯</a>
                      <form action="{{ route('users.destroy', $user) }}" method="POST" class="d-inline">
                        @csrf @method('DELETE')
                        <button onclick="return confirm('確定刪除?');" class="btn btn-sm btn-danger">刪除</button>
                      </form>
                      <form action="{{ route('users.toggle_active', $user) }}" method="POST" class="d-inline">
                        @csrf
                        <button type="submit"
                          class="btn btn-sm {{ $user->is_active ? 'btn-outline-secondary' : 'btn-outline-success' }}"
                          onclick="return confirm('確定要{{ $user->is_active ? '停用' : '啟用' }}這個帳號嗎？')">
                          {{ $user->is_active ? '停用' : '啟用' }}
                        </button>
                      </form>
                      @if($user->id !== Auth::id())
                      <form action="{{ route('impersonate.start', $user) }}" method="POST" class="d-inline">
                        @csrf
                        <button type="submit" class="btn btn-sm btn-outline-info"
                                onclick="return confirm('切換至 {{ $user->name }} 的身分？\n將以該使用者的權限瀏覽系統。')">
                          <i class="bi bi-person-badge me-1"></i>切換身分
                        </button>
                      </form>
                      @endif
                    </td>
                  </tr>
                @endforeach
              </tbody>
            </table>
          </div>
        </div>
      </div>
    </div>

  </div>
@endsection

@push('scripts')
  <script>
  $(function() {
    var table = $('#clientsTable').DataTable({
      serverSide: false,
      processing: false,
      dom: 'lfrtip',
      order: [[0, 'asc']],
      pageLength: 25,
      columnDefs: [
        { orderable: false, searchable: false, targets: [0, 1, 9] },
        { render: (_, __, ___, meta) => meta.row + 1, targets: 1 },
        { targets: 2, searchable: true },
      ],
      language: { url: '/vendor/datatables/i18n/zh-HANT.json' },
    });

    // 角色篩選按鈕
    $('.role-filter-btn').on('click', function() {
      $('.role-filter-btn').removeClass('active');
      $(this).addClass('active');
      var role = $(this).data('role');
      $.fn.dataTable.ext.search = [];
      if (role) {
        $.fn.dataTable.ext.search.push(function(settings, data, dataIndex) {
          var rowRole = $(table.row(dataIndex).node()).find('td[data-role]').data('role');
          return rowRole === role;
        });
      }
      table.draw();
    });
  });

  // ── 批次刪除邏輯 ──
  const batchBar    = document.getElementById('batchBar');
  const batchCnt    = document.getElementById('batchCnt');
  const batchIds    = document.getElementById('batchIds');
  const chkAll      = document.getElementById('chkAll');

  function updateBatchBar() {
    const checked = document.querySelectorAll('.row-cb:checked');
    batchCnt.textContent = checked.length;
    batchBar.style.display = checked.length > 0 ? 'flex' : 'none';
    const all = document.querySelectorAll('.row-cb');
    chkAll.indeterminate = checked.length > 0 && checked.length < all.length;
    chkAll.checked = all.length > 0 && checked.length === all.length;
  }

  document.addEventListener('change', e => {
    if (e.target.id === 'chkAll') {
      document.querySelectorAll('.row-cb').forEach(cb => cb.checked = e.target.checked);
    }
    if (e.target.classList.contains('row-cb') || e.target.id === 'chkAll') updateBatchBar();
  });

  document.getElementById('batchDelBtn').addEventListener('click', () => {
    const checked = document.querySelectorAll('.row-cb:checked');
    if (!checked.length) return;
    if (!confirm(`確定刪除選取的 ${checked.length} 筆帳號？此操作無法還原。`)) return;
    batchIds.innerHTML = '';
    checked.forEach(cb => {
      const inp = document.createElement('input');
      inp.type = 'hidden'; inp.name = 'ids[]'; inp.value = cb.value;
      batchIds.appendChild(inp);
    });
    document.getElementById('batchForm').submit();
  });

  document.getElementById('batchCancelBtn').addEventListener('click', () => {
    document.querySelectorAll('.row-cb').forEach(cb => cb.checked = false);
    if (chkAll) chkAll.checked = false;
    updateBatchBar();
  });
  </script>
@endpush