'use client';

import React from 'react';
import { OperatorSession } from './types';

interface OperationsTopBarProps {
  session: OperatorSession;
  onSignOut: () => void;
  onToggleMobileSidebar: () => void;
  signingOut?: boolean;
}

export function OperationsTopBar({
  session,
  onSignOut,
  onToggleMobileSidebar,
  signingOut = false,
}: OperationsTopBarProps) {
  const isOwner = session.role === 'owner';
  const environment = (session.environment ?? 'production').toUpperCase();

  return (
    <header className="fixed top-0 right-0 left-0 lg:left-64 z-30 h-16 bg-surface-container-lowest/90 backdrop-blur-md border-b border-outline-variant/30 flex items-center justify-between px-4 sm:px-6">
      {/* Left: Mobile Drawer Button + Operations Branding Title */}
      <div className="flex items-center gap-3 min-w-0">
        <button
          type="button"
          onClick={onToggleMobileSidebar}
          aria-label="Toggle navigation menu"
          className="lg:hidden p-2 rounded-lg bg-surface-container-low hover:bg-surface-container-high text-on-surface border border-outline-variant/30 focus-visible:ring-2 focus-visible:ring-primary-container focus-visible:outline-none"
        >
          <span className="material-symbols-outlined text-[20px]">menu</span>
        </button>

        <div className="flex items-center gap-2 min-w-0">
          <div className="flex items-center gap-1.5 shrink-0">
            <span className="font-headline-sm text-sm sm:text-base font-bold text-on-surface tracking-wider uppercase">
              MotorSignal
            </span>
            <span className="px-1.5 py-0.5 rounded text-[10px] font-bold tracking-widest uppercase bg-surface-container-high text-primary-container border border-primary-container/30">
              OPS
            </span>
          </div>

          <span className="hidden sm:inline-flex items-center px-2 py-0.5 rounded text-[10px] font-mono uppercase bg-surface-container-low text-on-surface-variant border border-outline-variant/30">
            ENV: {environment}
          </span>
        </div>
      </div>

      {/* Right: Operator Identity + Role Pill + Status + Sign Out */}
      <div className="flex items-center gap-2 sm:gap-3 shrink-0">
        {/* Safe Identity */}
        <div className="hidden md:flex flex-col items-end text-right">
          <span className="text-xs font-semibold text-on-surface tracking-tight truncate max-w-[200px]">
            {session.identity}
          </span>
          <span className="text-[10px] text-on-surface-variant font-mono">
            Current Operations Identity
          </span>
        </div>

        {/* Role Pill */}
        <span
          className={`px-2 py-0.5 rounded text-[11px] font-bold uppercase tracking-wider ${
            isOwner
              ? 'bg-primary-container/15 text-primary-container border border-primary-container/40'
              : 'bg-surface-container-high text-on-surface-variant border border-outline-variant/40'
          }`}
        >
          {session.role}
        </span>

        {/* Session Status Dot/Pill */}
        <div className="hidden sm:inline-flex items-center gap-1.5 px-2 py-0.5 rounded-full bg-surface-container-low border border-outline-variant/30">
          <span className="h-1.5 w-1.5 rounded-full bg-secondary-fixed"></span>
          <span className="text-[10px] font-mono text-on-surface-variant uppercase">
            Active
          </span>
        </div>

        {/* Sign Out Action */}
        <button
          type="button"
          onClick={onSignOut}
          disabled={signingOut}
          aria-label="Sign out of Operations"
          className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg bg-surface-container-low hover:bg-surface-container-high text-on-surface hover:text-error border border-outline-variant/30 text-xs font-semibold transition-colors focus-visible:ring-2 focus-visible:ring-primary-container focus-visible:outline-none disabled:opacity-50"
        >
          <span className="material-symbols-outlined text-[16px]">logout</span>
          <span className="hidden xs:inline">Sign Out</span>
        </button>
      </div>
    </header>
  );
}