@use "variables";

// DataTable Container
.datatable-container {
  background: var(--mm-card-background);
  color: var(--mm-text-primary);
  border-radius: 4px;

  .datatable-title {
    color: var(--mm-text-primary);
    font-weight: 400;
    margin-bottom: 1rem;
  }

  .datatable-global-search {
    padding-top: .5rem;
  }

  .datatable-wrapper {
    position: relative;
    background: var(--mm-card-background);
    border-radius: 4px;
    overflow: hidden;
  }

  .table-wrapper {
    overflow-x: auto;
    width: 100%;
    -webkit-overflow-scrolling: touch; // Smooth scrolling on iOS
    background: var(--mm-card-background);
  }

  // Loading State
  .datatable-loading {
    padding: 2rem;
    text-align: center;
    color: var(--mm-text-secondary);
    background: var(--mm-card-background);

    .preloader-wrapper {
      margin-bottom: 1rem;
    }
  }

  // Empty State
  .datatable-empty {
    padding: 3rem 2rem;
    text-align: center;
    color: var(--mm-text-secondary);
    font-style: italic;
    background: var(--mm-card-background);
  }
}

// DataTable Specific Enhancements
.datatable {
  background: var(--mm-card-background);
  color: var(--mm-text-primary);
  border-collapse: collapse;
  width: 100%;

  // Table headers
  thead {
    background: var(--mm-card-background);
    
    th {
      background: var(--mm-card-background);
      color: var(--mm-text-primary);
      border-bottom: 1px solid var(--mm-border-color);
      font-weight: 500;
      padding: 12px 16px;
      text-align: left;
    }
  }

  // Table body
  tbody {
    background: var(--mm-card-background);
    
    td {
      background: var(--mm-card-background);
      color: var(--mm-text-primary);
      border-bottom: 1px solid var(--mm-border-color);
      padding: 12px 16px;
    }
  }

  // Sortable column headers
  thead th.sortable {
    cursor: pointer;
    user-select: none;
    position: relative;
    transition: background-color 0.2s ease;

    &:hover {
      background-color: var(--mm-row-hover);
    }

    .sort-indicators {
      position: absolute;
      right: 8px;
      top: 50%;
      transform: translateY(-50%);
      display: flex;
      flex-direction: column;
      line-height: 1;

      .sort-icon {
        font-size: 16px;
        color: var(--mm-text-disabled);
        transition: color 0.2s ease;

        &.active {
          color: var(--mm-primary-color);
        }
      }

      .sort-asc {
        margin-bottom: 0px;
      }

      .sort-desc {
        margin-top: 0px;
      }
    }

    // Add padding for sort icons
    padding-right: 32px;
  }

  // Column alignment classes
  .align-left {
    text-align: left;
  }

  .align-center {
    text-align: center;
  }

  .align-right {
    text-align: right;
  }

  // Row hover effects
  tbody tr {
    transition: background-color 0.2s ease;
    cursor: pointer;

    &:hover {
      background-color: var(--mm-row-hover);
      
      td {
        background-color: var(--mm-row-hover);
      }
    }
  }

  // Enhanced striped rows for dark theme
  &.striped tbody tr:nth-child(odd) {
    background-color: var(--mm-row-stripe, var(--mm-table-striped-color));
    
    td {
      background-color: var(--mm-row-stripe, var(--mm-table-striped-color));
    }
    
    &:hover {
      background-color: var(--mm-row-hover);
      
      td {
        background-color: var(--mm-row-hover);
      }
    }
  }

  // Selection styles
  .selection-checkbox {
    width: 40px;
    text-align: center;
    padding: 0 8px !important;
    
    label {
      margin: 0;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    input[type="checkbox"] {
      opacity: 1;
      position: relative;
      left: auto;
      top: auto;
      transform: none;
      margin-right: 0;
    }
  }

  // Selected row styles
  tbody tr.selected {
    background-color: var(--mm-dropdown-selected) !important;
    
    td {
      background-color: var(--mm-dropdown-selected) !important;
    }
    
    &:hover {
      background-color: var(--mm-dropdown-selected) !important;
      opacity: 0.9;
      
      td {
        background-color: var(--mm-dropdown-selected) !important;
        opacity: 0.9;
      }
    }
  }

  // Fixed header styles
  &.fixed-header {
    thead th {
      position: sticky;
      top: 0;
      background: var(--mm-card-background);
      z-index: 10;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
  }
}

// Pagination Component
.datatable-pagination {
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--mm-card-background);
  color: var(--mm-text-primary);
  padding: 1rem;
  border-top: 1px solid var(--mm-border-color);

  .pagination-info {
    color: var(--mm-text-secondary);
    font-size: 0.9rem;
    flex: 1;
    min-width: 200px;
  }

  .pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;

    button.btn-flat {
      min-width: 40px;
      height: 40px;
      padding: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      transition: background-color 0.2s ease;
      background: transparent;
      color: var(--mm-text-primary);
      border: 1px solid var(--mm-border-color);

      &:hover:not(:disabled) {
        background-color: var(--mm-dropdown-hover);
      }

      &:disabled {
        color: var(--mm-text-disabled);
        cursor: not-allowed;
        border-color: var(--mm-text-disabled);
        opacity: 0.6;
      }

      i {
        font-size: 20px;
      }
    }

    .page-info {
      margin: 0 0.5rem;
      color: var(--mm-text-secondary);
      font-weight: 500;
      white-space: nowrap;
    }
  }
}

// Responsive enhancements
@media #{variables.$medium-and-down} {
  .datatable-container {
    .datatable-search {
      max-width: 100%;
    }

    .datatable-pagination {
      flex-direction: column;
      align-items: stretch;
      text-align: center;

      .pagination-info {
        order: 2;
        margin-top: 0.5rem;
        text-align: center;
      }

      .pagination-controls {
        order: 1;
        justify-content: center;
      }
    }
  }

  // Enhanced responsive table
  .datatable.responsive-table {
    // Hide certain columns on mobile if needed
    &.mobile-hide-secondary {
      th:nth-child(n+4),
      td:nth-child(n+4) {
        display: none;
      }
    }

    // Stack table cells on very small screens
    @media #{variables.$small-and-down} {
      &.mobile-stack {
        thead {
          display: none;
        }

        tbody tr {
          display: block;
          border: 1px solid var(--mm-border-color);
          margin-bottom: 1rem;
          padding: 1rem;
          border-radius: 4px;
          background: var(--mm-card-background);
        }

        tbody td {
          display: block;
          text-align: left !important;
          padding: 0.5rem 0;
          border: none;
          
          &::before {
            content: attr(data-label) ": ";
            font-weight: bold;
            color: var(--mm-text-secondary);
            display: inline-block;
            min-width: 100px;
          }
        }
      }
    }
  }
}

// Dark theme specific adjustments
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .datatable-container,
  [data-theme="dark"] .datatable-container {
    .datatable.fixed-header thead th {
      border-bottom: 1px solid var(--mm-border-color);
    }
  }
}

// Future: Virtual scrolling styles will be added in Phase 2

// Performance optimizations
.datatable {
  // Use contain for better performance
  contain: layout style paint;
  
  // Enable hardware acceleration for smooth scrolling
  &.virtual-table {
    transform: translateZ(0);
    backface-visibility: hidden;
  }

  // Optimize row rendering
  tbody tr {
    // Use transform3d for better performance
    transform: translateZ(0);
    
    // Optimize paint operations
    will-change: transform;
  }

  // Optimize table layout
  &.fixed-layout {
    table-layout: fixed;
    
    th, td {
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
  }
}