/**
 * ds-component-list.js
 * Component listing and management interface
 * Shows all components with links to Storybook and adoption stats
 */

import URLBuilder from '../../utils/url-builder.js';

export default class ComponentList extends HTMLElement {
  constructor() {
    super();
    this.components = [
      { id: 'button', name: 'Button', category: 'Inputs', adoption: 95, variants: 12 },
      { id: 'input', name: 'Input Field', category: 'Inputs', adoption: 88, variants: 8 },
      { id: 'card', name: 'Card', category: 'Containers', adoption: 92, variants: 5 },
      { id: 'modal', name: 'Modal', category: 'Containers', adoption: 78, variants: 3 },
      { id: 'badge', name: 'Badge', category: 'Status', adoption: 85, variants: 6 },
      { id: 'tooltip', name: 'Tooltip', category: 'Helpers', adoption: 72, variants: 4 },
      { id: 'dropdown', name: 'Dropdown', category: 'Inputs', adoption: 81, variants: 4 },
      { id: 'pagination', name: 'Pagination', category: 'Navigation', adoption: 65, variants: 2 },
    ];
    this.selectedCategory = 'All';
  }

  connectedCallback() {
    this.render();
    this.setupEventListeners();
  }

  render() {
    this.innerHTML = `
      <div style="padding: 24px; height: 100%; overflow-y: auto;">
        <div style="margin-bottom: 24px;">
          <h1 style="margin: 0 0 8px 0; font-size: 24px;">Design System Components</h1>
          <p style="margin: 0; color: var(--vscode-text-dim);">
            Browse, preview, and track component adoption
          </p>
        </div>

        <!-- Filter Bar -->
        <div style="margin-bottom: 24px; display: flex; gap: 8px; flex-wrap: wrap;">
          <button class="filter-btn" data-category="All" style="
            padding: 6px 12px;
            background: var(--vscode-selection);
            color: var(--vscode-foreground);
            border: 1px solid var(--vscode-focusBorder);
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 500;
          ">All</button>
          ${['Inputs', 'Containers', 'Status', 'Helpers', 'Navigation'].map(cat => `
            <button class="filter-btn" data-category="${cat}" style="
              padding: 6px 12px;
              background: var(--vscode-sidebar);
              color: var(--vscode-foreground);
              border: 1px solid var(--vscode-border);
              border-radius: 4px;
              cursor: pointer;
              font-size: 12px;
              font-weight: 500;
            ">${cat}</button>
          `).join('')}
        </div>

        <!-- Components Grid -->
        <div style="display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px;">
          ${this.renderComponents()}
        </div>
      </div>
    `;
  }

  renderComponents() {
    const filtered = this.selectedCategory === 'All'
      ? this.components
      : this.components.filter(c => c.category === this.selectedCategory);

    return filtered.map(component => `
      <div style="
        background: var(--vscode-sidebar);
        border: 1px solid var(--vscode-border);
        border-radius: 4px;
        overflow: hidden;
      ">
        <!-- Header -->
        <div style="
          background: var(--vscode-bg);
          padding: 12px;
          border-bottom: 1px solid var(--vscode-border);
        ">
          <div style="display: flex; justify-content: space-between; align-items: start; margin-bottom: 8px;">
            <div>
              <div style="font-weight: 600; font-size: 14px; margin-bottom: 2px;">
                ${component.name}
              </div>
              <div style="font-size: 11px; color: var(--vscode-text-dim);">
                ${component.category}
              </div>
            </div>
            <span style="
              background: #4caf50;
              color: white;
              padding: 2px 8px;
              border-radius: 3px;
              font-size: 10px;
              font-weight: 600;
            ">${component.adoption}%</span>
          </div>
        </div>

        <!-- Content -->
        <div style="padding: 12px;">
          <div style="display: flex; justify-content: space-between; margin-bottom: 12px; font-size: 12px;">
            <span>Variants: <strong>${component.variants}</strong></span>
            <span>Adoption: <strong>${component.adoption}%</strong></span>
          </div>

          <!-- Progress Bar -->
          <div style="width: 100%; height: 4px; background: var(--vscode-bg); border-radius: 2px; overflow: hidden; margin-bottom: 12px;">
            <div style="width: ${component.adoption}%; height: 100%; background: #4caf50;"></div>
          </div>

          <!-- Actions -->
          <div style="display: flex; gap: 8px;">
            <button class="storybook-btn" data-component-id="${component.id}" style="
              flex: 1;
              padding: 6px;
              background: var(--vscode-button-background);
              color: var(--vscode-button-foreground);
              border: none;
              border-radius: 3px;
              cursor: pointer;
              font-size: 11px;
              font-weight: 500;
            ">📖 Storybook</button>
            <button class="edit-btn" data-component-id="${component.id}" style="
              flex: 1;
              padding: 6px;
              background: var(--vscode-button-secondaryBackground);
              color: var(--vscode-button-secondaryForeground);
              border: none;
              border-radius: 3px;
              cursor: pointer;
              font-size: 11px;
              font-weight: 500;
            ">✏️ Edit</button>
          </div>
        </div>
      </div>
    `).join('');
  }

  setupEventListeners() {
    // Filter buttons
    this.querySelectorAll('.filter-btn').forEach(btn => {
      btn.addEventListener('click', () => {
        this.selectedCategory = btn.dataset.category;
        this.render();
        this.setupEventListeners();
      });
    });

    // Storybook buttons
    this.querySelectorAll('.storybook-btn').forEach(btn => {
      btn.addEventListener('click', () => {
        const componentId = btn.dataset.componentId;
        const component = this.components.find(c => c.id === componentId);
        if (component) {
          const url = URLBuilder.getComponentUrl(component);
          window.open(url, '_blank');
        }
      });
    });

    // Edit buttons
    this.querySelectorAll('.edit-btn').forEach(btn => {
      btn.addEventListener('click', () => {
        const componentId = btn.dataset.componentId;
        this.dispatchEvent(new CustomEvent('edit-component', {
          detail: { componentId },
          bubbles: true,
          composed: true
        }));
      });
    });
  }
}

customElements.define('ds-component-list', ComponentList);