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"use client"

import type React from "react"

import { useState, useRef, useEffect } from "react"
import { Button } from "@/components/ui/button"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { Input } from "@/components/ui/input"
import { Badge } from "@/components/ui/badge"
import { MessageCircle, Send, X, Sparkles, Heart } from "lucide-react"
import { motion, AnimatePresence } from "framer-motion"

interface Message {
  id: string
  text: string
  isUser: boolean
  timestamp: Date
}

export default function MostarAIAssistant() {
  const [isOpen, setIsOpen] = useState(false)
  const [messages, setMessages] = useState<Message[]>([
    {
      id: "welcome",
      text: "Sawubona! I am Mostar, your Ubuntu AI guide. I embody the spirit of 'I am because we are.' Ask me about FlameBorn, Ubuntu philosophy, African wisdom, or healthcare tokenization. How can we grow together today?",
      isUser: false,
      timestamp: new Date(),
    },
  ])
  const [inputValue, setInputValue] = useState("")
  const [isTyping, setIsTyping] = useState(false)
  const messagesEndRef = useRef<HTMLDivElement>(null)

  const scrollToBottom = () => {
    messagesEndRef.current?.scrollIntoView({ behavior: "smooth" })
  }

  useEffect(() => {
    scrollToBottom()
  }, [messages])

  const ubuntuResponses = [
    "In Ubuntu philosophy, we understand that individual wellness flows from community health. Your question touches the heart of our interconnectedness.",
    "As the Zulu saying goes: 'Umuntu ngumuntu ngabantu' - a person is a person through other persons. This wisdom guides everything we do at FlameBorn.",
    "The flame of healing burns brightest when we tend it together. In our tokenization model, every reward strengthens the whole network.",
    "Ubuntu teaches us that when one suffers, we all suffer. When one heals, we all heal. This is why FlameBorn exists - to weave digital bonds that strengthen real healing.",
    "In traditional African communities, the birth of a child was celebrated by the entire village. FlameBorn brings this spirit to the digital age through our birth registration tokens.",
    "The ancestors whisper: 'What affects one, affects all.' Our blockchain preserves this wisdom, ensuring that every healthcare action ripples through the community.",
    "Ubuntu is not just philosophy - it's a way of being. When healthcare workers earn FLB tokens, they're not just being rewarded, they're being recognized as vital threads in our community fabric.",
  ]

  const handleSendMessage = async () => {
    if (!inputValue.trim()) return

    const userMessage: Message = {
      id: Date.now().toString(),
      text: inputValue,
      isUser: true,
      timestamp: new Date(),
    }

    setMessages((prev) => [...prev, userMessage])
    setInputValue("")
    setIsTyping(true)

    // Simulate AI response delay
    setTimeout(() => {
      const aiResponse: Message = {
        id: (Date.now() + 1).toString(),
        text: ubuntuResponses[Math.floor(Math.random() * ubuntuResponses.length)],
        isUser: false,
        timestamp: new Date(),
      }

      setMessages((prev) => [...prev, aiResponse])
      setIsTyping(false)
    }, 1500)
  }

  const handleKeyPress = (e: React.KeyboardEvent) => {
    if (e.key === "Enter" && !e.shiftKey) {
      e.preventDefault()
      handleSendMessage()
    }
  }

  return (
    <>
      {/* Floating Chat Button */}
      <motion.div className="fixed bottom-6 right-6 z-50" whileHover={{ scale: 1.05 }} whileTap={{ scale: 0.95 }}>
        <Button
          onClick={() => setIsOpen(true)}
          className="h-14 w-14 rounded-full bg-gradient-to-r from-orange-500 to-red-500 hover:from-orange-600 hover:to-red-600 shadow-lg"
        >
          <MessageCircle className="h-6 w-6 text-white" />
        </Button>

        {/* Pulsing indicator */}
        <div className="absolute -top-1 -right-1">
          <div className="h-4 w-4 bg-green-500 rounded-full animate-pulse" />
        </div>
      </motion.div>

      {/* Chat Modal */}
      <AnimatePresence>
        {isOpen && (
          <motion.div
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            exit={{ opacity: 0 }}
            className="fixed inset-0 bg-black/50 backdrop-blur-sm z-50 flex items-center justify-center p-4"
            onClick={() => setIsOpen(false)}
          >
            <motion.div
              initial={{ scale: 0.9, opacity: 0 }}
              animate={{ scale: 1, opacity: 1 }}
              exit={{ scale: 0.9, opacity: 0 }}
              onClick={(e) => e.stopPropagation()}
              className="w-full max-w-md h-[600px] flex flex-col"
            >
              <Card className="flex-1 flex flex-col bg-white/95 backdrop-blur-sm border-orange-200">
                <CardHeader className="flex-row items-center justify-between space-y-0 pb-4 border-b border-orange-100">
                  <div className="flex items-center space-x-2">
                    <div className="h-10 w-10 rounded-full bg-gradient-to-r from-orange-500 to-red-500 flex items-center justify-center">
                      <Heart className="h-5 w-5 text-white" />
                    </div>
                    <div>
                      <CardTitle className="text-lg">Mostar AI</CardTitle>
                      <Badge variant="outline" className="text-xs">
                        <Sparkles className="h-3 w-3 mr-1" />
                        Ubuntu Guide
                      </Badge>
                    </div>
                  </div>
                  <Button variant="ghost" size="sm" onClick={() => setIsOpen(false)}>
                    <X className="h-4 w-4" />
                  </Button>
                </CardHeader>

                <CardContent className="flex-1 flex flex-col p-0">
                  {/* Messages */}
                  <div className="flex-1 overflow-y-auto p-4 space-y-4">
                    {messages.map((message) => (
                      <div key={message.id} className={`flex ${message.isUser ? "justify-end" : "justify-start"}`}>
                        <div
                          className={`max-w-[80%] p-3 rounded-lg ${
                            message.isUser ? "bg-orange-500 text-white" : "bg-gray-100 text-gray-900"
                          }`}
                        >
                          <p className="text-sm">{message.text}</p>
                          <p className="text-xs opacity-70 mt-1">
                            {message.timestamp.toLocaleTimeString([], {
                              hour: "2-digit",
                              minute: "2-digit",
                            })}
                          </p>
                        </div>
                      </div>
                    ))}

                    {isTyping && (
                      <div className="flex justify-start">
                        <div className="bg-gray-100 p-3 rounded-lg">
                          <div className="flex space-x-1">
                            <div className="w-2 h-2 bg-gray-400 rounded-full animate-bounce" />
                            <div
                              className="w-2 h-2 bg-gray-400 rounded-full animate-bounce"
                              style={{ animationDelay: "0.1s" }}
                            />
                            <div
                              className="w-2 h-2 bg-gray-400 rounded-full animate-bounce"
                              style={{ animationDelay: "0.2s" }}
                            />
                          </div>
                        </div>
                      </div>
                    )}

                    <div ref={messagesEndRef} />
                  </div>

                  {/* Input */}
                  <div className="border-t border-orange-100 p-4">
                    <div className="flex space-x-2">
                      <Input
                        value={inputValue}
                        onChange={(e) => setInputValue(e.target.value)}
                        onKeyPress={handleKeyPress}
                        placeholder="Ask about Ubuntu, FlameBorn, or African wisdom..."
                        className="flex-1"
                        disabled={isTyping}
                      />
                      <Button
                        onClick={handleSendMessage}
                        disabled={!inputValue.trim() || isTyping}
                        className="bg-orange-500 hover:bg-orange-600"
                      >
                        <Send className="h-4 w-4" />
                      </Button>
                    </div>
                  </div>
                </CardContent>
              </Card>
            </motion.div>
          </motion.div>
        )}
      </AnimatePresence>
    </>
  )
}