// EarthBound-inspired color palette (matches NpcInfoPanel)
const EB = {
  bgDeep: '#0c0824',
  bgPanel: '#141038',
  borderOuter: '#7878d8',
  borderInner: '#5858b8',
  borderGap: '#1c1450',
  textPrimary: '#f0f0ff',
  textSecondary: '#9898d0',
  textMuted: '#6868a8',
  shine: 'rgba(200,200,255,0.08)',
};

interface Command {
  key: string;
  label: string;
}

export class CommandPanel {
  private outerFrame: HTMLDivElement;
  private listContainer: HTMLDivElement;
  private visible = false;

  constructor(id = 'command-panel', title = 'COMMANDS', commands: Command[] = [{ key: '1', label: 'Spawn NPC' }]) {
    // Outer frame (doubled border, same as NpcInfoPanel)
    this.outerFrame = document.createElement('div');
    this.outerFrame.id = id;
    this.outerFrame.style.cssText = `
      position: fixed;
      bottom: 16px;
      right: 16px;
      min-width: 160px;
      border-radius: 12px;
      border: 3px solid ${EB.borderOuter};
      background: ${EB.borderGap};
      z-index: 1000;
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1),
                  transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
      pointer-events: none;
      box-shadow:
        0 0 16px rgba(80, 60, 160, 0.3),
        0 4px 20px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(160, 160, 255, 0.15);
    `;

    // Inner container
    const container = document.createElement('div');
    container.style.cssText = `
      margin: 3px;
      border-radius: 8px;
      border: 2px solid ${EB.borderInner};
      background: ${EB.bgPanel};
      overflow: hidden;
      position: relative;
      padding: 8px 12px 10px;
      font-family: 'Press Start 2P', monospace;
    `;

    // Shine overlay
    const shine = document.createElement('div');
    shine.style.cssText = `
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(
        135deg,
        ${EB.shine} 0%,
        transparent 40%,
        transparent 60%,
        rgba(0,0,0,0.05) 100%
      );
      pointer-events: none;
      z-index: 1;
    `;
    container.appendChild(shine);

    // Title
    const titleEl = document.createElement('div');
    titleEl.style.cssText = `
      font-size: 9px;
      color: ${EB.textMuted};
      text-align: center;
      letter-spacing: 4px;
      padding-bottom: 6px;
      user-select: none;
      position: relative;
      z-index: 2;
    `;
    titleEl.textContent = `\u25C6 ${title} \u25C6`;
    container.appendChild(titleEl);

    // Commands list
    this.listContainer = document.createElement('div');
    this.listContainer.style.cssText = `
      display: flex;
      flex-direction: column;
      gap: 4px;
      position: relative;
      z-index: 2;
    `;
    container.appendChild(this.listContainer);

    this.outerFrame.appendChild(container);
    document.body.appendChild(this.outerFrame);

    // Add commands
    for (const cmd of commands) {
      this.addCommand(cmd);
    }
  }

  private addCommand(cmd: Command): void {
    const row = document.createElement('div');
    row.style.cssText = `
      display: flex;
      align-items: center;
      gap: 8px;
    `;

    const keyBadge = document.createElement('div');
    keyBadge.style.cssText = `
      font-size: 10px;
      color: ${EB.bgDeep};
      background: ${EB.borderOuter};
      border-radius: 3px;
      padding: 2px 5px;
      min-width: 12px;
      text-align: center;
      text-shadow: none;
      font-weight: bold;
      box-shadow: 0 1px 0 rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.2);
    `;
    keyBadge.textContent = cmd.key;

    const label = document.createElement('div');
    label.style.cssText = `
      font-size: 10px;
      color: ${EB.textSecondary};
      letter-spacing: 0.5px;
    `;
    label.textContent = cmd.label;

    row.appendChild(keyBadge);
    row.appendChild(label);
    this.listContainer.appendChild(row);
  }

  show(): void {
    if (this.visible) return;
    this.visible = true;
    this.outerFrame.style.opacity = '1';
    this.outerFrame.style.transform = 'translateY(0)';
    this.outerFrame.style.pointerEvents = 'auto';
  }

  hide(): void {
    if (!this.visible) return;
    this.visible = false;
    this.outerFrame.style.opacity = '0';
    this.outerFrame.style.transform = 'translateY(20px)';
    this.outerFrame.style.pointerEvents = 'none';
  }

  isVisible(): boolean {
    return this.visible;
  }

  destroy(): void {
    this.outerFrame.remove();
  }
}