const LUMA_MEDIA_VERSION = '0.2.0';

class LumaMediaCard extends HTMLElement {
  set hass(hass) { this._hass = hass; this._render(); }

  setConfig(config) {
    if (!config.entity) throw new Error('Entity is required');
    this._config = { entity: config.entity, name: config.name || '', size: config.size || '1x2',
      accent_color: config.accent_color || '', icon: config.icon || '',
      tap_action: config.tap_action || { action: 'more-info' },
      hold_action: config.hold_action || { action: 'more-info' }, ...config };
    this._render();
  }

  getCardSize() { return 4; }
  static getStubConfig() { return { entity: '', name: '', size: '1x2' }; }
  connectedCallback() { if (!this.shadowRoot) this.attachShadow({ mode: 'open' }); this._render(); }

  _getState() { return this._hass?.states?.[this._config?.entity]; }

  _isActive() {
    const s = this._getState();
    return s && (s.state === 'playing' || s.state === 'paused');
  }

  _callService(service, data = {}) {
    if (!this._hass || !this._config) return;
    this._hass.callService('media_player', service, { entity_id: this._config.entity, ...data });
  }

  _handleClick() {
    if (!this._hass || !this._config) return;
    const ev = new Event('hass-more-info', { composed: true });
    ev.detail = { entityId: this._config.entity };
    this.dispatchEvent(ev);
  }

  _formatTime(secs) {
    if (!secs || secs <= 0) return '0:00';
    const m = Math.floor(secs / 60);
    const s = Math.floor(secs % 60);
    return `${m}:${s < 10 ? '0' : ''}${s}`;
  }

  _render() {
    if (!this.shadowRoot || !this._config) return;
    const s = this._getState();
    const isPlaying = s?.state === 'playing';
    const isPaused = s?.state === 'paused';
    const isActive = isPlaying || isPaused;
    const hasMedia = s?.attributes?.media_title ? true : false;
    const title = s?.attributes?.media_title || this._config.name || s?.attributes?.friendly_name || '';
    const artist = s?.attributes?.media_artist || '';
    const entityPicture = s?.attributes?.entity_picture || '';
    const volume = Math.round((s?.attributes?.volume_level || 0) * 100);
    const duration = s?.attributes?.media_duration || 0;
    const position = s?.attributes?.media_position || 0;
    const progress = duration > 0 ? Math.min(position / duration, 1) : 0;

    const artBg = entityPicture
      ? `background-image: url('${entityPicture}'); background-size: cover; background-position: center;`
      : `background: rgba(36,40,48,0.9); display: flex; align-items: center; justify-content: center;`;

    const volFillH = volume > 0 ? `height: ${volume}%` : 'height: 0';
    const volAlpha = Math.min(volume / 100 * 0.35, 0.30).toFixed(2);

    this.shadowRoot.innerHTML = `
      <style>
        :host { display: block; }
        .card {
          position: relative; overflow: hidden; background: rgba(36,40,48,0.75);
          border: 1px solid rgba(255,255,255,0.10); border-radius: 22px;
          height: 100%; min-height: 280px; display: flex; flex-direction: column;
          box-shadow: 0 2px 6px rgba(0,0,0,.06);
          transition: border-color .15s, box-shadow .15s;
        }
        .card:hover { border-color: rgba(255,255,255,0.18); box-shadow: 0 8px 28px rgba(0,0,0,.28); }
        .card.active { border-color: rgba(155,125,219,0.25); }

        .vol-fill {
          position: absolute; left: 0; bottom: 0; width: 100%; ${volFillH};
          background: linear-gradient(to top, rgba(112,80,176,${volAlpha}), transparent);
          border-radius: 22px; pointer-events: none; transition: height .3s;
        }

        .top { display: flex; gap: 16px; padding: 16px; position: relative; z-index: 1; flex: 1; min-height: 0; }

        .art {
          width: 180px; height: 180px; border-radius: 12px; flex-shrink: 0;
          ${artBg}
          box-shadow: 0 4px 24px rgba(0,0,0,0.4);
        }
        .art ha-icon { --mdc-icon-size: 56px; color: ${isActive ? 'rgba(180,142,250,0.7)' : 'rgba(187,187,187,0.3)'}; }

        .info { flex: 1; min-width: 0; display: flex; flex-direction: column; padding-top: 8px; }
        .title { font-size: 17px; font-weight: 600; letter-spacing: -0.02em; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .artist { font-size: 14px; font-weight: 400; color: rgba(232,232,232,0.55); margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .vol-row { display: flex; align-items: center; gap: 4px; margin-top: 10px; }
        .vol-row ha-icon { --mdc-icon-size: 14px; color: rgba(255,255,255,0.4); }
        .vol-pct { font-size: 13px; font-weight: 500; color: rgba(232,232,232,0.4); }

        .progress { padding: 0 16px; position: relative; z-index: 1; }
        .bar-track { height: 3px; border-radius: 1.5px; background: rgba(255,255,255,0.15); }
        .bar-played { height: 3px; border-radius: 1.5px; background: rgba(255,255,255,0.70); width: ${(progress * 100).toFixed(1)}%; transition: width .5s linear; }
        .time-row { display: flex; justify-content: space-between; margin-top: 4px; }
        .time { font-size: 11px; font-weight: 400; letter-spacing: 0.02em; color: rgba(255,255,255,0.45); }

        .controls { display: flex; align-items: center; justify-content: space-between; padding: 8px 16px 14px; position: relative; z-index: 1; }
        .ctrl-btn { background: none; border: none; cursor: pointer; padding: 6px; display: flex; align-items: center; justify-content: center; border-radius: 50%; transition: background .15s; }
        .ctrl-btn:hover { background: rgba(255,255,255,0.08); }
        .ctrl-btn ha-icon { --mdc-icon-size: 22px; color: rgba(255,255,255,0.45); }
        .ctrl-btn.play ha-icon { --mdc-icon-size: 30px; color: #fff; }
        .ctrl-btn.edge ha-icon { --mdc-icon-size: 22px; color: rgba(255,255,255,0.35); }
      </style>
      <div class="card ${isActive ? 'active' : ''}">
        <div class="vol-fill"></div>
        <div class="top">
          <div class="art">${!entityPicture ? '<ha-icon icon="mdi:music"></ha-icon>' : ''}</div>
          <div class="info">
            <div class="title">${title}</div>
            ${artist ? `<div class="artist">${artist}</div>` : ''}
            <div class="vol-row">
              <ha-icon icon="mdi:volume-high"></ha-icon>
              <span class="vol-pct">${volume}%</span>
            </div>
          </div>
        </div>
        ${duration > 0 ? `
        <div class="progress">
          <div class="bar-track"><div class="bar-played"></div></div>
          <div class="time-row">
            <span class="time">${this._formatTime(position)}</span>
            <span class="time">-${this._formatTime(duration - position)}</span>
          </div>
        </div>` : ''}
        <div class="controls">
          <button class="ctrl-btn edge" data-action="playlist"><ha-icon icon="mdi:playlist-music"></ha-icon></button>
          <button class="ctrl-btn" data-action="prev"><ha-icon icon="mdi:skip-previous"></ha-icon></button>
          <button class="ctrl-btn" data-action="seek-back"><ha-icon icon="mdi:rewind-10"></ha-icon></button>
          <button class="ctrl-btn play" data-action="play">
            <ha-icon icon="${isPlaying ? 'mdi:pause' : 'mdi:play'}"></ha-icon>
          </button>
          <button class="ctrl-btn" data-action="seek-fwd"><ha-icon icon="mdi:fast-forward-10"></ha-icon></button>
          <button class="ctrl-btn" data-action="next"><ha-icon icon="mdi:skip-next"></ha-icon></button>
          <button class="ctrl-btn edge" data-action="search"><ha-icon icon="mdi:magnify"></ha-icon></button>
        </div>
      </div>`;

    this.shadowRoot.querySelector('.top').addEventListener('click', () => this._handleClick());

    this.shadowRoot.querySelectorAll('.ctrl-btn').forEach(btn => {
      btn.addEventListener('click', (e) => {
        e.stopPropagation();
        switch (btn.dataset.action) {
          case 'play': this._callService(isPlaying ? 'media_pause' : 'media_play'); break;
          case 'prev': this._callService('media_previous_track'); break;
          case 'next': this._callService('media_next_track'); break;
          case 'seek-back': if (duration > 0) this._callService('media_seek', { seek_position: Math.max(0, position - 10) }); break;
          case 'seek-fwd': if (duration > 0) this._callService('media_seek', { seek_position: Math.min(duration, position + 10) }); break;
          default: this._handleClick();
        }
      });
    });
  }
}

customElements.define('luma-media-card', LumaMediaCard);
window.customCards = window.customCards || [];
window.customCards.push({ type: 'luma-media-card', name: 'Luma Media', description: 'Luma-style media card with album art, progress bar, and 7-button transport.', preview: true });
console.info(`%c LUMA-MEDIA-CARD %c v${LUMA_MEDIA_VERSION} `, 'background:#9b7ddb;color:#111;font-weight:bold', 'background:#161a22;color:#9b7ddb');