import { useState, useEffect } from 'react';
import { useAgentStore } from '../store/agentStore';
import { useConnectionStore } from '../store/connectionStore';
import { useConfigStore } from '../store/configStore';
import { toChatAgent, useChatStore } from '../store/chatStore';
import { Bot, Plus, X, Globe, Cat, Search, BarChart2, Sparkles } from 'lucide-react';
import { AgentOnboardingWizard } from './AgentOnboardingWizard';
import type { Clone } from '../store/agentStore';

export function CloneManager() {
  const clones = useAgentStore((s) => s.clones);
  const loadClones = useAgentStore((s) => s.loadClones);
  const deleteClone = useAgentStore((s) => s.deleteClone);
  const connectionState = useConnectionStore((s) => s.connectionState);
  const quickConfig = useConfigStore((s) => s.quickConfig);
  const { agents, currentAgent, setCurrentAgent } = useChatStore();
  const [showWizard, setShowWizard] = useState(false);

  const connected = connectionState === 'connected';

  useEffect(() => {
    if (connected) {
      loadClones();
    }
  }, [connected, loadClones]);

  const handleDelete = async (id: string) => {
    if (confirm('确定删除该分身？')) {
      await deleteClone(id);
    }
  };

  const handleWizardSuccess = (clone: Clone) => {
    setCurrentAgent(toChatAgent(clone));
    setShowWizard(false);
  };

  // Merge gateway clones with local agents for display
  const displayClones = clones.length > 0 ? clones : agents.map(a => ({
    id: a.id,
    name: a.name,
    role: '默认助手',
    nickname: a.name,
    scenarios: [] as string[],
    workspaceDir: '~/.openfang/zclaw-workspace',
    userName: quickConfig.userName || '未设置',
    userRole: '',
    restrictFiles: true,
    privacyOptIn: false,
    createdAt: '',
    onboardingCompleted: true,
    emoji: undefined as string | undefined,
    personality: undefined as string | undefined,
  }));

  // Function to get display emoji or icon for clone
  const getCloneDisplay = (clone: typeof displayClones[0]) => {
    // If clone has emoji, use it
    if (clone.emoji) {
      return {
        emoji: clone.emoji,
        icon: null,
        bg: 'bg-gradient-to-br from-orange-400 to-red-500',
      };
    }

    // Fallback to icon based on name
    if (clone.name.includes('Browser') || clone.name.includes('浏览器')) {
      return { emoji: null, icon: <Globe className="w-5 h-5" />, bg: 'bg-blue-500 text-white' };
    }
    if (clone.name.includes('AutoClaw') || clone.name.includes('ZCLAW')) {
      return { emoji: null, icon: <Cat className="w-6 h-6" />, bg: 'bg-gradient-to-br from-orange-400 to-red-500 text-white' };
    }
    if (clone.name.includes('沉思')) {
      return { emoji: null, icon: <Search className="w-5 h-5" />, bg: 'bg-blue-100 text-blue-600 dark:bg-blue-900 dark:text-blue-300' };
    }
    if (clone.name.includes('监控')) {
      return { emoji: null, icon: <BarChart2 className="w-5 h-5" />, bg: 'bg-orange-100 text-orange-600 dark:bg-orange-900 dark:text-orange-300' };
    }
    return { emoji: null, icon: <Bot className="w-5 h-5" />, bg: 'bg-gray-200 text-gray-600 dark:bg-gray-700 dark:text-gray-300' };
  };

  return (
    <div className="h-full flex flex-col py-2">
      {/* Clone list */}
      <div className="flex-1 overflow-y-auto custom-scrollbar">
        {displayClones.map((clone, idx) => {
          const { emoji, icon, bg } = getCloneDisplay(clone);
          const isActive = currentAgent ? currentAgent.id === clone.id : idx === 0;
          const canDelete = clones.length > 0;

          return (
            <div
              key={clone.id}
              onClick={() => setCurrentAgent(toChatAgent(clone))}
              className={`group sidebar-item mx-2 px-3 py-3 rounded-lg cursor-pointer mb-1 flex items-start gap-3 transition-colors ${
                isActive ? 'bg-white dark:bg-gray-800 shadow-sm border border-gray-100 dark:border-gray-700' : 'hover:bg-black/5 dark:hover:bg-white/5'
              }`}
            >
              <div className={`w-10 h-10 rounded-xl flex items-center justify-center flex-shrink-0 ${emoji ? bg : bg}`}>
                {emoji ? (
                  <span className="text-xl">{emoji}</span>
                ) : (
                  icon
                )}
              </div>
              <div className="flex-1 min-w-0">
                <div className="flex justify-between items-center mb-0.5">
                  <span className={`truncate ${isActive ? 'font-semibold text-gray-900 dark:text-white' : 'font-medium text-gray-900 dark:text-white'}`}>
                    {clone.name}
                  </span>
                  {isActive ? <span className="text-xs text-orange-500">当前</span> : null}
                </div>
                <p className="text-xs text-gray-500 dark:text-gray-400 truncate">
                  {clone.role || clone.personality || '新分身'}
                </p>
              </div>
              {canDelete && (
                <button
                  onClick={(e) => { e.stopPropagation(); handleDelete(clone.id); }}
                  className="pointer-events-none opacity-0 group-hover:pointer-events-auto group-hover:opacity-100 focus:pointer-events-auto focus:opacity-100 p-1 mt-1 text-gray-300 hover:text-red-500 transition-opacity"
                  title="删除"
                >
                  <X className="w-3.5 h-3.5" />
                </button>
              )}
            </div>
          );
        })}

        {/* Add new clone button */}
        <div
          onClick={() => {
            if (connected) {
              setShowWizard(true);
            }
          }}
          className={`sidebar-item mx-2 px-3 py-3 rounded-lg mb-1 flex items-center gap-3 transition-colors border border-dashed border-gray-300 dark:border-gray-600 ${
            connected
              ? 'cursor-pointer text-gray-500 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white hover:bg-black/5 dark:hover:bg-white/5'
              : 'cursor-not-allowed text-gray-400 dark:text-gray-500 bg-gray-50 dark:bg-gray-800/50'
          }`}
        >
          <div className="w-10 h-10 rounded-xl flex items-center justify-center flex-shrink-0 bg-gray-50 dark:bg-gray-800">
            {connected ? (
              <Sparkles className="w-5 h-5 text-primary" />
            ) : (
              <Plus className="w-5 h-5" />
            )}
          </div>
          <span className="text-sm font-medium">
            {connected ? '创建新 Agent' : '连接 Gateway 后创建'}
          </span>
        </div>
      </div>

      {/* Onboarding Wizard Modal */}
      <AgentOnboardingWizard
        isOpen={showWizard}
        onClose={() => setShowWizard(false)}
        onSuccess={handleWizardSuccess}
      />
    </div>
  );
}