/**
 * Services Controller
 * Handles category collapse/expand animations
 */

export class ServicesController {
  constructor() {
    this.init();
  }

  private init(): void {
    this.setupCategoryToggle();
  }

  private setupCategoryToggle(): void {
    document.addEventListener('click', (e) => {
      const categoryRow = (e.target as HTMLElement).closest('swp-category-row');
      if (!categoryRow) return;

      const isExpanded = categoryRow.getAttribute('data-expanded') !== 'false';
      const categoryId = categoryRow.getAttribute('data-category');

      // Find all service rows belonging to this category
      const serviceRows = this.getServiceRowsForCategory(categoryRow);

      if (isExpanded) {
        // Collapse - set attribute immediately so chevron animates with rows
        categoryRow.setAttribute('data-expanded', 'false');
        this.collapseRows(serviceRows);
      } else {
        // Expand - set attribute immediately so chevron animates with rows
        categoryRow.setAttribute('data-expanded', 'true');
        this.expandRows(serviceRows);
      }
    });
  }

  private getServiceRowsForCategory(categoryRow: Element): HTMLElement[] {
    const rows: HTMLElement[] = [];
    let sibling = categoryRow.nextElementSibling;

    while (sibling && sibling.tagName.toLowerCase() === 'swp-data-table-row') {
      rows.push(sibling as HTMLElement);
      sibling = sibling.nextElementSibling;
    }

    return rows;
  }

  private collapseRows(rows: HTMLElement[]): void {
    if (rows.length === 0) return;

    // Animate each row
    rows.forEach((row) => {
      const height = row.offsetHeight;
      row.style.height = `${height}px`;
      row.style.overflow = 'hidden';

      // Force reflow
      row.offsetHeight;

      row.style.transition = 'height 0.2s ease, opacity 0.2s ease';
      row.style.height = '0';
      row.style.opacity = '0';
    });

    // After animation completes
    setTimeout(() => {
      rows.forEach(row => {
        row.style.display = 'none';
        row.style.height = '';
        row.style.opacity = '';
        row.style.overflow = '';
        row.style.transition = '';
      });
    }, 200);
  }

  private expandRows(rows: HTMLElement[]): void {
    rows.forEach((row, index) => {
      // First make visible but with 0 height
      row.style.display = 'grid';
      row.style.height = '0';
      row.style.opacity = '0';
      row.style.overflow = 'hidden';

      // Measure natural height
      row.style.height = 'auto';
      const naturalHeight = row.offsetHeight;
      row.style.height = '0';

      // Force reflow
      row.offsetHeight;

      // Animate to natural height
      row.style.transition = 'height 0.2s ease, opacity 0.2s ease';
      row.style.height = `${naturalHeight}px`;
      row.style.opacity = '1';
    });

    // Cleanup after animation
    setTimeout(() => {
      rows.forEach(row => {
        row.style.height = '';
        row.style.opacity = '';
        row.style.overflow = '';
        row.style.transition = '';
      });
    }, 200);
  }
}