'use client';

import { useState, useEffect } from 'react';
import { createPortal } from 'react-dom';
import { motion, AnimatePresence } from 'framer-motion';
import { Pencil, Check, X, RefreshCw, Clock, ArrowRight, Wand2, Image as ImageIcon, Mic, Maximize2, Sparkles } from 'lucide-react';

interface SceneCardProps {
  scene: {
    id: string;
    order: number;
    title?: string;
    narrationText: string;
    visualPrompt: string;
    subtitleText?: string;
    duration: number;
    transitionType: string;
    mediaAssets?: Array<{ id: string; type: string; url?: string }>;
  };
  isEditable: boolean;
  isRendering?: boolean;
  onUpdate?: (sceneId: string, data: { narrationText?: string; visualPrompt?: string; subtitleText?: string }) => void;
  onRegenerate?: (sceneId: string) => void;
  onGenerateImage?: (sceneId: string, customPrompt?: string) => void;
  onUpscaleImage?: (sceneId: string) => void;
  isRegenerating?: boolean;
  isGeneratingImage?: boolean;
  isUpscalingImage?: boolean;
}

export function SceneCard({
  scene,
  isEditable,
  isRendering = false,
  onUpdate,
  onRegenerate,
  onGenerateImage,
  onUpscaleImage,
  isRegenerating,
  isGeneratingImage,
  isUpscalingImage,
}: SceneCardProps) {
  const [isEditing, setIsEditing] = useState(false);
  const [editNarration, setEditNarration] = useState(scene.narrationText);
  const [editVisual, setEditVisual] = useState(scene.visualPrompt);
  const [lightboxOpen, setLightboxOpen] = useState(false);
  const [mounted, setMounted] = useState(false);

  useEffect(() => { setMounted(true); }, []);

  const handleSave = () => {
    onUpdate?.(scene.id, {
      narrationText: editNarration,
      visualPrompt: editVisual,
      subtitleText: editNarration,
    });
    // If user edited visual prompt, and maybe wants to generate, they can click generate visual later.
    setIsEditing(false);
  };

  const handleCancel = () => {
    setEditNarration(scene.narrationText);
    setEditVisual(scene.visualPrompt);
    setIsEditing(false);
  };

  const thumbnailAsset = scene.mediaAssets?.find(a => a.type === 'THUMBNAIL');

  return (
    <motion.div
      layout
      initial={{ opacity: 0, y: 12 }}
      animate={{ opacity: 1, y: 0 }}
      transition={{ delay: scene.order * 0.05, duration: 0.4 }}
      className="relative group"
    >
      <div className="card-surface p-5 md:p-6 hover:border-neutral-500/30 transition-all duration-300 shadow-sm">
        {/* Header */}
        <div className="flex items-center justify-between mb-4">
          <div className="flex items-center gap-3">
            <div className="w-10 h-10 rounded-xl bg-gradient-to-br from-violet-500/20 to-cyan-500/20 flex items-center justify-center border border-white/10 shadow-sm">
              <span className="text-sm font-bold text-[var(--color-text-primary)]">{scene.order}</span>
            </div>
            <div>
              <h4 className="text-base font-bold text-[var(--color-text-primary)]">
                {scene.title || `Sahne ${scene.order}`}
              </h4>
              <div className="flex items-center gap-3 mt-1">
                <span className="flex items-center gap-1 text-xs font-medium text-[var(--color-text-muted)] bg-[var(--color-bg-elevated)] px-2 py-0.5 rounded-md">
                  <Clock size={12} className="text-violet-400" /> {scene.duration}s
                </span>
                <span className="flex items-center gap-1 text-xs font-medium text-[var(--color-text-muted)] bg-[var(--color-bg-elevated)] px-2 py-0.5 rounded-md">
                  <ArrowRight size={12} className="text-cyan-400" /> {scene.transitionType.toLowerCase()}
                </span>
              </div>
            </div>
          </div>

          {/* Aksiyon butonları */}
          {!isEditing && (
            <div className="flex items-center gap-1.5 opacity-100 md:opacity-0 md:group-hover:opacity-100 transition-opacity">
              <button
                onClick={() => setIsEditing(true)}
                className="w-8 h-8 rounded-xl flex items-center justify-center text-[var(--color-text-muted)] hover:text-[var(--color-text-primary)] hover:bg-[var(--color-bg-elevated)] transition-all"
                title="Düzenle"
              >
                <Pencil size={14} />
              </button>
              <button
                onClick={() => onRegenerate?.(scene.id)}
                disabled={!isEditable || isRendering || isRegenerating}
                className="w-8 h-8 rounded-xl flex items-center justify-center text-[var(--color-text-muted)] hover:text-[var(--color-text-primary)] hover:bg-[var(--color-bg-elevated)] transition-all disabled:opacity-40 disabled:cursor-not-allowed"
                title="AI ile yeniden üret"
              >
                <RefreshCw size={14} className={isRegenerating ? 'animate-spin' : ''} />
              </button>
            </div>
          )}
        </div>

        <AnimatePresence mode="wait">
          {isEditing ? (
            <motion.div
              key="editing"
              initial={{ opacity: 0, height: 0 }}
              animate={{ opacity: 1, height: 'auto' }}
              exit={{ opacity: 0, height: 0 }}
              className="space-y-4"
            >
              {/* Narrasyon düzenleme */}
              <div>
                <label className="flex items-center gap-1.5 text-sm font-medium text-violet-400 mb-2">
                  <Mic size={14} /> Narrasyon
                </label>
                <textarea
                  value={editNarration}
                  onChange={(e) => setEditNarration(e.target.value)}
                  rows={3}
                  className="w-full px-4 py-3 rounded-xl bg-[var(--color-bg-deep)] border border-violet-500/30 text-base font-medium text-[var(--color-text-primary)] resize-none focus:outline-none focus:border-violet-500/60 focus:ring-1 focus:ring-violet-500/60 transition-all shadow-inner"
                />
              </div>

              {/* Görsel prompt düzenleme */}
              <div>
                <label className="flex items-center gap-1.5 text-sm font-medium text-cyan-400 mb-2">
                  <ImageIcon size={14} /> Görsel Prompt
                </label>
                <textarea
                  value={editVisual}
                  onChange={(e) => setEditVisual(e.target.value)}
                  rows={3}
                  className="w-full px-4 py-3 rounded-xl bg-[var(--color-bg-deep)] border border-cyan-500/30 text-sm font-medium text-cyan-50 resize-none focus:outline-none focus:border-cyan-500/60 focus:ring-1 focus:ring-cyan-500/60 transition-all shadow-inner"
                />
              </div>

              {/* Kaydet/İptal */}
              <div className="flex items-center gap-3 pt-2">
                <button
                  onClick={handleSave}
                  className="flex items-center gap-1.5 px-4 py-2 rounded-xl bg-gradient-to-r from-violet-600 to-cyan-500 text-white text-sm font-medium hover:shadow-[0_0_15px_rgba(34,211,238,0.4)] hover:scale-[1.02] transition-all"
                >
                  <Check size={14} /> Kaydet
                </button>
                <button
                  onClick={handleCancel}
                  className="flex items-center gap-1.5 px-4 py-2 rounded-xl bg-[var(--color-bg-elevated)] text-[var(--color-text-muted)] text-sm font-medium hover:text-[var(--color-text-secondary)] hover:bg-[var(--color-bg-surface)] transition-all"
                >
                  <X size={14} /> İptal
                </button>
              </div>
            </motion.div>
          ) : (
            <motion.div key="viewing" className="space-y-4">
              {/* Narrasyon */}
              <div className="flex gap-3">
                <div className="w-6 h-6 rounded-md bg-violet-500/10 flex items-center justify-center shrink-0 mt-1 border border-violet-500/20">
                  <Mic size={14} className="text-violet-400" />
                </div>
                <div className="flex-1 group/narration relative bg-violet-900/10 p-3.5 md:p-5 rounded-xl border border-violet-500/20 hover:border-violet-500/40 transition-colors">
                  <p className="text-lg md:text-xl font-[family-name:var(--font-display)] text-[var(--color-text-primary)] font-medium leading-relaxed tracking-wide pr-8">
                    {scene.narrationText}
                  </p>
                  <button
                    onClick={() => {
                      navigator.clipboard.writeText(scene.narrationText);
                    }}
                    className="absolute top-2 right-2 p-1.5 opacity-0 group-hover/narration:opacity-100 transition-opacity bg-violet-500/20 rounded-md text-violet-300 hover:text-violet-100 hover:bg-violet-500/40"
                    title="Metni Kopyala"
                  >
                    <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                      <rect width="14" height="14" x="8" y="8" rx="2" ry="2" />
                      <path d="M4 16c-1.1 0-2-.9-2-2V4c0-1.1.9-2 2-2h10c1.1 0 2 .9 2 2" />
                    </svg>
                  </button>
                </div>
              </div>

              {/* Görsel Prompt ve Görsel Alanı */}
              <div className="flex flex-col md:flex-row gap-4 pt-2">
                {/* Sol: Prompt */}
                <div className="flex gap-3 flex-1">
                  <div className="w-6 h-6 rounded-md bg-cyan-500/10 flex items-center justify-center shrink-0 mt-1 border border-cyan-500/20">
                    <ImageIcon size={14} className="text-cyan-400" />
                  </div>
                  <div className="flex-1 group/prompt relative bg-cyan-900/10 p-3.5 rounded-xl border border-cyan-500/20 hover:border-cyan-500/40 transition-colors">
                    <p className="text-sm font-medium text-cyan-50 leading-relaxed pr-8">
                      {scene.visualPrompt}
                    </p>
                    <button
                      onClick={() => {
                        navigator.clipboard.writeText(scene.visualPrompt);
                      }}
                      className="absolute top-2 right-2 p-1.5 opacity-0 group-hover/prompt:opacity-100 transition-opacity bg-cyan-500/20 rounded-md text-cyan-300 hover:text-cyan-100 hover:bg-cyan-500/40"
                      title="Prompt'u Kopyala"
                    >
                      <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
                        <rect width="14" height="14" x="8" y="8" rx="2" ry="2" />
                        <path d="M4 16c-1.1 0-2-.9-2-2V4c0-1.1.9-2 2-2h10c1.1 0 2 .9 2 2" />
                      </svg>
                    </button>
                  </div>
                </div>

                {/* Sağ: Görsel Önizleme ve Butonlar */}
                <div className="flex flex-col gap-2 w-full md:w-64 shrink-0">
                  {thumbnailAsset?.url && !isGeneratingImage ? (
                    <div className="relative group/thumb rounded-lg overflow-hidden border border-[var(--color-border-faint)] aspect-video w-full">
                      <img 
                        src={thumbnailAsset.url} 
                        alt="Scene Thumbnail" 
                        className="w-full h-full object-cover cursor-pointer hover:scale-105 transition-transform duration-500" 
                        onClick={() => setLightboxOpen(true)}
                      />
                      <div className="absolute inset-0 bg-black/40 opacity-0 group-hover/thumb:opacity-100 transition-opacity flex items-center justify-center pointer-events-none">
                         <Maximize2 size={24} className="text-white" />
                      </div>
                    </div>
                  ) : (
                    <div className="rounded-lg border border-dashed border-[var(--color-border-faint)] bg-[var(--color-bg-deep)] aspect-video w-full flex flex-col items-center justify-center p-4 relative overflow-hidden">
                      {isGeneratingImage ? (
                        <div className="flex flex-col items-center justify-center animate-in fade-in zoom-in duration-300">
                          <div className="relative w-12 h-12 mb-3">
                            <div className="absolute inset-0 rounded-full border-2 border-emerald-500/20"></div>
                            <div className="absolute inset-0 rounded-full border-2 border-emerald-500 border-t-transparent animate-spin"></div>
                            <Sparkles size={16} className="absolute inset-0 m-auto text-emerald-400 animate-pulse" />
                          </div>
                          <p className="text-xs font-medium text-emerald-400 text-center animate-pulse">
                            AI Görsel Üretiyor...
                          </p>
                        </div>
                      ) : (
                        <>
                          <ImageIcon size={24} className="text-[var(--color-text-ghost)] mb-2" />
                          <p className="text-xs text-[var(--color-text-muted)] text-center">Görsel Henüz Üretilmedi</p>
                        </>
                      )}
                    </div>
                  )}
                  
                  {/* Görsel üretim butonları */}
                  <div className="flex items-center gap-2 mt-1 flex-wrap">
                    <button
                      onClick={() => onGenerateImage?.(scene.id, scene.visualPrompt)}
                      disabled={isGeneratingImage || isUpscalingImage}
                      className="flex-1 flex items-center justify-center gap-1.5 px-3 py-1.5 rounded-lg bg-emerald-500/15 text-emerald-400 text-xs font-medium hover:bg-emerald-500/25 transition-colors disabled:opacity-50 disabled:cursor-not-allowed whitespace-nowrap"
                    >
                      {isGeneratingImage ? <RefreshCw size={13} className="animate-spin" /> : <ImageIcon size={13} />}
                      {thumbnailAsset ? "Yeniden Üret" : "Görsel Üret"}
                    </button>
                    {thumbnailAsset?.url && (
                      <button
                        onClick={() => onUpscaleImage?.(scene.id)}
                        disabled={isUpscalingImage || isGeneratingImage}
                        className="flex-1 flex items-center justify-center gap-1.5 px-3 py-1.5 rounded-lg bg-orange-500/15 text-orange-400 text-xs font-medium hover:bg-orange-500/25 transition-colors disabled:opacity-50 disabled:cursor-not-allowed whitespace-nowrap"
                      >
                        {isUpscalingImage ? <RefreshCw size={13} className="animate-spin" /> : <Wand2 size={13} />}
                        Upscale (4K)
                      </button>
                    )}
                  </div>
                </div>
              </div>
            </motion.div>
          )}
        </AnimatePresence>
      </div>

      {/* Sahne bağlantı çizgisi */}
      <div className="absolute left-7 -bottom-3 w-px h-3 bg-gradient-to-b from-[var(--color-border-faint)] to-transparent" />
      
      {/* Lightbox Modal — Portal ile document.body'e render (overflow clipping önleme) */}
      {mounted && createPortal(
        <AnimatePresence>
          {lightboxOpen && thumbnailAsset?.url && (
            <motion.div
              initial={{ opacity: 0 }}
              animate={{ opacity: 1 }}
              exit={{ opacity: 0 }}
              onClick={() => setLightboxOpen(false)}
              className="fixed inset-0 z-[9999] flex items-center justify-center bg-black/85 backdrop-blur-md p-4 md:p-10 cursor-zoom-out"
            >
              <motion.img 
                initial={{ scale: 0.85, opacity: 0 }}
                animate={{ scale: 1, opacity: 1 }}
                exit={{ scale: 0.85, opacity: 0 }}
                transition={{ type: "spring", damping: 25, stiffness: 300 }}
                src={thumbnailAsset.url}
                alt="Fullscreen Scene"
                className="max-w-[90vw] max-h-[90vh] object-contain rounded-xl shadow-2xl"
                onClick={(e) => e.stopPropagation()}
              />
              <button 
                onClick={() => setLightboxOpen(false)}
                className="absolute top-6 right-6 p-2.5 rounded-full bg-black/60 text-white/80 hover:text-white hover:bg-black/80 transition-colors"
              >
                <X size={24} />
              </button>
            </motion.div>
          )}
        </AnimatePresence>,
        document.body
      )}
    </motion.div>
  );
}