'use client';

import React from 'react';
import { OperationsNavId, OperationsRole } from './types';

interface OperationsSidebarProps {
  activeNav: OperationsNavId;
  onSelectNav: (nav: OperationsNavId) => void;
  isOpenOnMobile: boolean;
  onCloseMobile: () => void;
  role: OperationsRole;
}

export function OperationsSidebar({
  activeNav,
  onSelectNav,
  isOpenOnMobile,
  onCloseMobile,
  role,
}: OperationsSidebarProps) {
  const isOwner = role === 'owner';

  const navItems: Array<{
    id: OperationsNavId;
    label: string;
    icon: string;
    badge?: string;
    badgeType?: 'primary' | 'neutral' | 'disabled';
  }> = [
    {
      id: 'overview',
      label: 'Overview',
      icon: 'dashboard',
    },
    {
      id: 'users',
      label: 'Users',
      icon: 'person_search',
    },
    {
      id: 'incidents',
      label: 'Incidents',
      icon: 'assignment',
    },
    {
      id: 'support',
      label: 'Support Center',
      icon: 'contact_support',
    },
    {
      id: 'cms',
      label: 'Website Content',
      icon: 'edit_note',
    },
    {
      id: 'audit',
      label: 'Audit',
      icon: 'verified_user',
      badge: isOwner ? 'Owner' : 'Restricted',
      badgeType: isOwner ? 'primary' : 'neutral',
    },
    {
      id: 'operators',
      label: 'Operators',
      icon: 'group',
      badge: 'Disabled',
      badgeType: 'disabled',
    },
    {
      id: 'session',
      label: 'My Session',
      icon: 'badge',
    },
  ];

  const sidebarContent = (
    <div className="flex flex-col h-full bg-surface-container-lowest border-r border-outline-variant/30 text-on-surface">
      {/* Brand Masthead */}
      <div className="h-16 px-6 flex items-center gap-3 border-b border-outline-variant/30 shrink-0">
        <div className="w-8 h-8 rounded-lg bg-surface-container-high border border-primary-container/40 flex items-center justify-center text-primary-container shadow-[0_0_12px_rgba(0,242,254,0.2)]">
          <span className="material-symbols-outlined text-[18px]">terminal</span>
        </div>
        <div className="flex flex-col">
          <span className="font-headline-sm text-sm font-bold tracking-tight text-on-surface">
            Operations
          </span>
          <span className="text-[10px] font-mono text-primary-fixed-dim">
            Platform Console
          </span>
        </div>
      </div>

      {/* Navigation Links */}
      <nav className="flex-1 px-3 py-4 space-y-1 overflow-y-auto" aria-label="Operations Navigation">
        {navItems.map((item) => {
          const isActive = activeNav === item.id;
          return (
            <button
              key={item.id}
              type="button"
              onClick={() => {
                onSelectNav(item.id);
                onCloseMobile();
              }}
              aria-current={isActive ? 'page' : undefined}
              className={`w-full flex items-center justify-between px-3 py-2.5 rounded-lg text-xs font-medium transition-all group focus-visible:ring-2 focus-visible:ring-primary-container focus-visible:outline-none ${
                isActive
                  ? 'bg-surface-container-high text-primary-container font-semibold border-l-2 border-primary-container'
                  : 'text-on-surface-variant hover:text-on-surface hover:bg-surface-container-low'
              }`}
            >
              <div className="flex items-center gap-2.5">
                <span
                  className={`material-symbols-outlined text-[18px] transition-colors ${
                    isActive
                      ? 'text-primary-container'
                      : 'text-outline group-hover:text-on-surface'
                  }`}
                >
                  {item.icon}
                </span>
                <span>{item.label}</span>
              </div>

              {item.badge && (
                <span
                  className={`px-1.5 py-0.5 rounded text-[10px] font-mono ${
                    item.badgeType === 'primary'
                      ? 'bg-primary-container/15 text-primary-container border border-primary-container/30'
                      : item.badgeType === 'disabled'
                      ? 'bg-surface-container-highest/60 text-outline border border-outline-variant/20'
                      : 'bg-surface-container text-on-surface-variant border border-outline-variant/30'
                  }`}
                >
                  {item.badge}
                </span>
              )}
            </button>
          );
        })}
      </nav>

      {/* Footer Authority Boundary Notice */}
      <div className="p-4 border-t border-outline-variant/20 bg-surface-container-lowest/50 text-[10px] text-outline space-y-1">
        <div className="flex items-center gap-1 font-mono text-on-surface-variant">
          <span className="material-symbols-outlined text-[12px] text-primary-fixed-dim">
            shield_lock
          </span>
          <span>Isolated Session</span>
        </div>
        <p className="leading-tight">
          Authority strictly bounded to <code className="text-on-surface font-mono">ops.operators</code>.
        </p>
      </div>
    </div>
  );

  return (
    <>
      {/* Desktop Persistent Sidebar */}
      <aside className="hidden lg:block fixed top-0 bottom-0 left-0 w-64 z-40">
        {sidebarContent}
      </aside>

      {/* Mobile Backdrop & Drawer */}
      {isOpenOnMobile && (
        <div className="lg:hidden fixed inset-0 z-50 flex">
          {/* Backdrop */}
          <div
            className="fixed inset-0 bg-black/60 backdrop-blur-sm transition-opacity"
            onClick={onCloseMobile}
            aria-hidden="true"
          />

          {/* Drawer Panel */}
          <div className="relative w-64 max-w-[80vw] h-full shadow-2xl z-10 animate-in slide-in-from-left duration-200">
            {sidebarContent}
          </div>
        </div>
      )}
    </>
  );
}