frontend/components/Sidebar.tsx

"use client";
import { translations, Language } from "../lib/translations";

import { useState, type Dispatch, type SetStateAction } from "react";

type SidebarTab =
  | "Dashboard"
  | "Tender Search"
  | "My Portfolio"
  | "Market Monitor"
  | "Company Profile"
  | "Agent Analysis"
  | "Proposal Draft"
  | "History"
  | "Database"
  | "About";

type Props = {
  tabs: readonly SidebarTab[];
  activeTab: SidebarTab;
  onTabSelect: Dispatch<SetStateAction<SidebarTab>>;
  status: string;
  lang: Language;
  forceExpanded?: boolean;
};

export default function Sidebar({ tabs, activeTab, onTabSelect, status, lang, forceExpanded = false }: Props) {
  const t = translations[lang];
  const [isHovered, setIsHovered] = useState(false);
  const isExpanded = forceExpanded || isHovered;
  
  const getTabLabel = (tab: SidebarTab) => {
    switch(tab) {
      case "Dashboard": return { label: t.dashboard, icon: "📊" };
      case "Tender Search": return { label: t.tenderSearch, icon: "📡" };
      case "My Portfolio": return { label: t.myPortfolio, icon: "★" };
      case "Market Monitor": return { label: "Market Monitor", icon: "🛒" };
      case "Company Profile": return { label: t.companyProfile, icon: "🏢" };
      case "Agent Analysis": return { label: t.agentAnalysis, icon: "🤖" };
      case "Proposal Draft": return { label: t.proposalDraft, icon: "✍️" };
      case "History": return { label: t.history, icon: "🕒" };
      case "Database": return { label: "Local DB", icon: "🗄️" };
      case "About": return { label: t.about, icon: "ℹ️" };
      default: return { label: tab, icon: "•" };
    }
  };

  return (
    <aside 
      onMouseEnter={() => setIsHovered(true)}
      onMouseLeave={() => setIsHovered(false)}
      className={`glass-card rounded-2xl md:rounded-3xl h-full md:h-[calc(100vh-3rem)] md:sticky md:top-6 p-3 md:p-4 flex flex-col gap-4 md:gap-8 transition-all duration-500 ease-in-out z-50 border-white/10 ${isExpanded ? 'w-full md:w-72 shadow-2xl shadow-purple-500/10 bg-black/60' : 'w-[84px] shadow-none border-white/5 bg-white/[0.02]'}`}
    >
      <div className={`flex items-center gap-3 px-2 transition-all duration-300 ${isExpanded ? 'justify-start' : 'justify-center'}`}>
        <div className="w-10 h-10 premium-gradient rounded-xl flex-shrink-0 flex items-center justify-center shadow-lg shadow-purple-500/20">
          <span className="text-white font-bold text-xl">A</span>
        </div>
        {isExpanded && (
          <div className="animate-in fade-in duration-500">
            <h1 className="text-xl font-bold tracking-tight text-white whitespace-nowrap">AndesOps</h1>
            <p className="text-[8px] font-black uppercase tracking-[0.3em] text-cyan opacity-50">v1.2.0 • MONOLITH</p>
          </div>
        )}
      </div>

      <nav className="flex-1 flex flex-col gap-2 overflow-y-auto overflow-x-hidden custom-scrollbar pr-1">
        {tabs.map((tab) => {
          const isActive = activeTab === tab;
          const { label, icon } = getTabLabel(tab);
          const tabSlug = tab.toLowerCase().replace(/ /g, "_");
          
          return (
            <button
              key={tab}
              onClick={() => {
                onTabSelect(tab);
                window.history.pushState({}, '', `?tab=${tabSlug}`);
              }}
              className={`flex items-center rounded-2xl transition-all duration-300 active:scale-90 group relative ${
                isActive
                  ? "bg-white/10 text-white shadow-[inset_0_0_20px_rgba(255,255,255,0.05)] border border-white/10"
                  : "text-slate-400 hover:bg-white/5 hover:text-white"
              } ${isExpanded ? 'px-5 py-4 gap-4' : 'px-0 py-4 w-full justify-center'}`}
            >
              <span className={`text-xl transition-all duration-300 ${isActive ? 'scale-110' : 'group-hover:scale-110 opacity-70 group-hover:opacity-100'}`}>
                {icon}
              </span>
              
              {isExpanded && (
                <span className="font-medium text-sm whitespace-nowrap animate-in slide-in-from-left-2 duration-300">
                  {label}
                </span>
              )}
              
              {!isExpanded && isActive && (
                <div className="absolute right-0 top-1/2 -translate-y-1/2 w-1 h-6 bg-purple-500 rounded-l-full shadow-[0_0_12px_rgba(168,85,247,0.8)]" />
              )}

              {/* Tooltip for collapsed mode */}
              {!isExpanded && (
                <div className="absolute left-full ml-4 px-3 py-2 bg-slate-900 text-white text-[10px] font-bold rounded-lg opacity-0 pointer-events-none group-hover:opacity-100 transition-opacity border border-white/10 whitespace-nowrap z-50">
                  {label}
                </div>
              )}
            </button>
          );
        })}
      </nav>

      <div className="mt-auto pt-6 border-t border-white/5">
        <div className={`rounded-xl transition-all duration-500 bg-gradient-to-br from-indigo-500/10 to-purple-500/10 border border-indigo-500/20 ${isExpanded ? 'px-4 py-3' : 'p-2 flex justify-center'}`}>
          {isExpanded ? (
            <>
              <p className="text-[10px] uppercase tracking-widest text-indigo-300 font-bold mb-1">Status</p>
              <div className="flex items-center gap-2">
                <div className={`w-2 h-2 rounded-full ${status === "connected" ? "bg-green-500 animate-pulse" : "bg-yellow-500"}`} />
                <span className={`text-xs font-medium ${status === "connected" ? "text-green-300" : "text-yellow-300"}`}>
                  {status === "connected" ? "Systems Nominal" : "Connection Warning"}
                </span>
              </div>
            </>
          ) : (
            <div className={`w-3 h-3 rounded-full ${status === "connected" ? "bg-green-500 animate-pulse" : "bg-yellow-500"}`} />
          )}
        </div>
      </div>
    </aside>
  );
}