import type { SuperlativesData } from '@dflike/shared';

type SuperlativeCategory = {
  key: keyof SuperlativesData;
  label: string;
};

const CATEGORIES: SuperlativeCategory[] = [
  { key: 'mostLoved', label: 'Most Loved' },
  { key: 'mostReviled', label: 'Most Reviled' },
  { key: 'mostPopular', label: 'Most Popular' },
  { key: 'mostAnnoying', label: 'Most Annoying' },
  { key: 'mostOutgoing', label: 'Most Outgoing' },
  { key: 'shyest', label: 'Shyest' },
  { key: 'socialButterfly', label: 'Social Butterfly' },
  { key: 'loneliest', label: 'Loneliest' },
  { key: 'mostDevoted', label: 'Most Devoted' },
  { key: 'mostPolarizing', label: 'Most Polarizing' },
  { key: 'biggestHeartbreaker', label: 'Heartbreaker' },
];

export class SuperlativesPanel {
  private contentEl: HTMLDivElement;
  private categoryElements: Map<string, { nameEl: HTMLSpanElement; valueEl: HTMLSpanElement }> = new Map();

  constructor() {
    // Content area (no outer container, tab, or slide logic)
    this.contentEl = document.createElement('div');

    for (const cat of CATEGORIES) {
      const row = document.createElement('div');
      row.style.cssText = 'margin-bottom: 10px;';

      const label = document.createElement('div');
      label.style.cssText = `
        color: #8878a8;
        font-size: 12px;
        margin-bottom: 2px;
        text-transform: uppercase;
      `;
      label.textContent = cat.label;

      const entryRow = document.createElement('div');
      entryRow.style.cssText = `
        display: flex;
        justify-content: space-between;
        align-items: baseline;
      `;

      const nameEl = document.createElement('span');
      nameEl.style.cssText = `
        color: #58d858;
        font-size: 14px;
        cursor: pointer;
        text-decoration: none;
      `;
      nameEl.textContent = '\u2014';
      nameEl.addEventListener('mouseenter', () => {
        if (nameEl.dataset.entityId) {
          nameEl.style.color = '#88ff88';
          nameEl.style.textDecoration = 'underline';
        }
      });
      nameEl.addEventListener('mouseleave', () => {
        nameEl.style.color = '#58d858';
        nameEl.style.textDecoration = 'none';
      });
      nameEl.addEventListener('click', () => {
        const entityId = nameEl.dataset.entityId;
        if (entityId) {
          document.dispatchEvent(new CustomEvent('superlative-follow', {
            detail: { entityId: parseInt(entityId, 10) },
          }));
        }
      });

      const valueEl = document.createElement('span');
      valueEl.style.cssText = `
        color: #a0a0c0;
        font-size: 12px;
        margin-left: 4px;
        flex-shrink: 0;
      `;

      entryRow.appendChild(nameEl);
      entryRow.appendChild(valueEl);
      row.appendChild(label);
      row.appendChild(entryRow);
      this.contentEl.appendChild(row);

      this.categoryElements.set(cat.key, { nameEl, valueEl });
    }
  }

  getElement(): HTMLDivElement {
    return this.contentEl;
  }

  update(data: SuperlativesData): void {
    for (const cat of CATEGORIES) {
      const els = this.categoryElements.get(cat.key);
      if (!els) continue;
      const entry = data[cat.key];
      if (entry) {
        els.nameEl.textContent = entry.name;
        els.nameEl.dataset.entityId = String(entry.entityId);
        els.valueEl.textContent = `(${entry.value})`;
      } else {
        els.nameEl.textContent = '\u2014';
        delete els.nameEl.dataset.entityId;
        els.valueEl.textContent = '';
      }
    }
  }
}