import {
  property,
  html,
  customElement,
  css,
  cssManager,
  type TemplateResult,
  type CSSResult,
} from '@design.estate/dees-element';
import { DeesTileBase } from '../dees-tile-shared/DeesTileBase.js';
import { tileBaseStyles } from '../dees-tile-shared/styles.js';
import { demo } from './demo.js';

export interface ITileFolderItem {
  type: 'pdf' | 'image' | 'audio' | 'video' | 'note' | 'folder' | 'unknown';
  thumbnailSrc?: string;
  name: string;
}

const TYPE_ICON_MAP: Record<string, string> = {
  pdf: 'lucide:FileText',
  image: 'lucide:Image',
  audio: 'lucide:Music',
  video: 'lucide:Video',
  note: 'lucide:FileCode',
  folder: 'lucide:Folder',
  unknown: 'lucide:File',
};

declare global {
  interface HTMLElementTagNameMap {
    'dees-tile-folder': DeesTileFolder;
  }
}

@customElement('dees-tile-folder')
export class DeesTileFolder extends DeesTileBase {
  public static demo = demo;
  public static demoGroups = ['Media'];
  public static styles = [
    ...tileBaseStyles,
    css`
      .folder-content {
        position: relative;
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        background: ${cssManager.bdTheme('hsl(40 30% 97%)', 'hsl(215 20% 14%)')};
        overflow: hidden;
      }

      .folder-header {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 12px 14px 8px;
        flex-shrink: 0;
      }

      .folder-icon {
        font-size: 18px;
        color: ${cssManager.bdTheme('hsl(40 80% 50%)', 'hsl(40 70% 60%)')};
      }

      .folder-name {
        font-size: 12px;
        font-weight: 700;
        color: ${cssManager.bdTheme('hsl(215 20% 20%)', 'hsl(215 16% 80%)')};
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
      }

      .preview-grid {
        flex: 1;
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr 1fr;
        gap: 4px;
        padding: 0 14px 14px;
        min-height: 0;
      }

      .grid-cell {
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 4px;
        overflow: hidden;
        background: ${cssManager.bdTheme('hsl(215 20% 94%)', 'hsl(215 20% 18%)')};
        position: relative;
      }

      .grid-cell img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
      }

      .grid-cell dees-icon {
        font-size: 20px;
        color: ${cssManager.bdTheme('hsl(215 16% 60%)', 'hsl(215 16% 55%)')};
      }

      .grid-cell-empty {
        background: ${cssManager.bdTheme('hsl(215 15% 96%)', 'hsl(215 20% 16%)')};
      }

      .item-count-badge {
        position: absolute;
        bottom: 8px;
        right: 8px;
        padding: 3px 8px;
        background: ${cssManager.bdTheme('hsl(0 0% 0% / 0.6)', 'hsl(0 0% 100% / 0.85)')};
        color: ${cssManager.bdTheme('white', 'hsl(215 20% 12%)')};
        border-radius: 4px;
        font-size: 10px;
        font-weight: 600;
        backdrop-filter: blur(8px);
        z-index: 10;
      }
    `,
  ] as any;

  @property({ type: String })
  accessor name: string = '';

  @property({ attribute: false })
  accessor items: ITileFolderItem[] = [];

  protected renderTileContent(): TemplateResult {
    const previewItems = this.items.slice(0, 4);
    const emptyCells = 4 - previewItems.length;

    return html`
      <div class="folder-content">
        <div class="folder-header">
          <dees-icon class="folder-icon" icon="lucide:Folder"></dees-icon>
          <div class="folder-name">${this.name || 'Untitled Folder'}</div>
        </div>

        <div class="preview-grid">
          ${previewItems.map((item) => html`
            <div class="grid-cell">
              ${item.thumbnailSrc ? html`
                <img src="${item.thumbnailSrc}" alt="${item.name}" />
              ` : html`
                <dees-icon icon="${TYPE_ICON_MAP[item.type] || TYPE_ICON_MAP.unknown}"></dees-icon>
              `}
            </div>
          `)}
          ${Array.from({ length: emptyCells }).map(() => html`
            <div class="grid-cell grid-cell-empty"></div>
          `)}
        </div>
      </div>

      <div class="item-count-badge">
        ${this.items.length} item${this.items.length !== 1 ? 's' : ''}
      </div>

      ${this.clickable ? html`
        <div class="tile-overlay">
          <dees-icon icon="lucide:FolderOpen"></dees-icon>
          <span>Open Folder</span>
        </div>
      ` : ''}
    `;
  }

  protected getTileClickDetail(): Record<string, unknown> {
    return {
      name: this.name,
      itemCount: this.items.length,
      items: this.items,
    };
  }
}