"use client";

import { useState, useCallback } from "react";
import { motion, AnimatePresence } from "framer-motion";
import {
  Loader2,
  Heart,
  Repeat2,
  Eye,
  MessageCircle,
  Sparkles,
  ArrowRight,
  CheckCircle2,
  XCircle,
  Flame,
  Image as ImageIcon,
  Link2,
  Zap,
} from "lucide-react";

// X (Twitter) logosu — lucide-react'ta mevcut değil
const XIcon = ({ size = 20, className = "" }: { size?: number; className?: string }) => (
  <svg width={size} height={size} viewBox="0 0 24 24" fill="currentColor" className={className}>
    <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z" />
  </svg>
);
import { useTweet } from "@/hooks/use-tweet";
import { cn } from "@/lib/utils";

interface TweetImportCardProps {
  onProjectCreated?: (projectId: string) => void;
}

export function TweetImportCard({ onProjectCreated }: TweetImportCardProps) {
  const {
    preview,
    isLoadingPreview,
    isCreatingProject,
    error,
    createdProject,
    isValidTweetUrl,
    previewTweet,
    createProjectFromTweet,
    reset,
  } = useTweet();

  const [tweetUrl, setTweetUrl] = useState("");
  const [customTitle, setCustomTitle] = useState("");

  const handlePreview = useCallback(async () => {
    if (!tweetUrl.trim()) return;
    await previewTweet(tweetUrl.trim());
  }, [tweetUrl, previewTweet]);

  const handleCreate = useCallback(async () => {
    if (!tweetUrl.trim()) return;

    const project = await createProjectFromTweet({
      tweetUrl: tweetUrl.trim(),
      title: customTitle.trim() || undefined,
    });

    if (project && onProjectCreated) {
      onProjectCreated(project.id);
    }
  }, [tweetUrl, customTitle, createProjectFromTweet, onProjectCreated]);

  const handleKeyDown = (e: React.KeyboardEvent) => {
    if (e.key === "Enter" && !e.shiftKey) {
      e.preventDefault();
      if (!preview) {
        handlePreview();
      } else {
        handleCreate();
      }
    }
  };

  const isUrlValid = tweetUrl.trim().length > 0 && isValidTweetUrl(tweetUrl.trim());

  const formatNumber = (num: number): string => {
    if (num >= 1_000_000) return `${(num / 1_000_000).toFixed(1)}M`;
    if (num >= 1_000) return `${(num / 1_000).toFixed(1)}K`;
    return num.toString();
  };

  const viralColor = (score: number) => {
    if (score >= 70) return "text-emerald-400";
    if (score >= 40) return "text-amber-400";
    return "text-[var(--color-text-muted)]";
  };

  const viralBg = (score: number) => {
    if (score >= 70) return "bg-emerald-500/10 border-emerald-500/30";
    if (score >= 40) return "bg-amber-500/10 border-amber-500/30";
    return "bg-[var(--color-bg-elevated)] border-[var(--color-border-faint)]";
  };

  return (
    <div className="card-surface overflow-hidden">
      {/* Header */}
      <div className="flex items-center gap-3 p-4 md:p-5 border-b border-[var(--color-border-faint)]">
        <div className="w-9 h-9 rounded-xl bg-[var(--color-bg-elevated)] border border-[var(--color-border-faint)] flex items-center justify-center">
          <XIcon size={18} className="text-neutral-300" />
        </div>
        <div>
          <h3 className="font-[family-name:var(--font-display)] text-sm font-semibold">
            X/Twitter Import
          </h3>
          <p className="text-[11px] text-[var(--color-text-ghost)]">
            Tweet → Video pipeline
          </p>
        </div>
      </div>

      {/* URL Input */}
      <div className="p-4 md:p-5 space-y-4">
        <div className="relative">
          <div className="absolute left-3 top-1/2 -translate-y-1/2 text-[var(--color-text-ghost)]">
            <Link2 size={16} />
          </div>
          <input
            type="url"
            value={tweetUrl}
            onChange={(e) => {
              setTweetUrl(e.target.value);
              if (preview) reset();
            }}
            onKeyDown={handleKeyDown}
            placeholder="https://x.com/user/status/123..."
            className="w-full h-11 pl-10 pr-24 rounded-xl bg-[var(--color-bg-elevated)] border border-[var(--color-border-faint)] text-sm text-[var(--color-text-primary)] placeholder:text-[var(--color-text-ghost)] focus:border-neutral-500/50 focus:ring-1 focus:ring-neutral-500/25 outline-none transition-all"
          />
          <button
            onClick={preview ? handleCreate : handlePreview}
            disabled={!isUrlValid || isLoadingPreview || isCreatingProject}
            className={cn(
              "absolute right-1.5 top-1/2 -translate-y-1/2 h-8 px-3 rounded-lg text-xs font-medium transition-all flex items-center gap-1.5",
              isUrlValid && !isLoadingPreview && !isCreatingProject
                ? "bg-[var(--color-bg-inverted)] text-[var(--color-text-inverted)] hover:bg-neutral-800 shadow-sm"
                : "bg-[var(--color-bg-surface)] text-[var(--color-text-ghost)] cursor-not-allowed"
            )}
          >
            {isLoadingPreview ? (
              <>
                <Loader2 size={13} className="animate-spin" />
                Çekiliyor
              </>
            ) : isCreatingProject ? (
              <>
                <Loader2 size={13} className="animate-spin" />
                Üretiliyor
              </>
            ) : preview ? (
              <>
                <Zap size={13} />
                Oluştur
              </>
            ) : (
              <>
                <ArrowRight size={13} />
                Ön İzle
              </>
            )}
          </button>
        </div>

        {/* Error */}
        <AnimatePresence mode="wait">
          {error && (
            <motion.div
              initial={{ opacity: 0, y: -8, height: 0 }}
              animate={{ opacity: 1, y: 0, height: "auto" }}
              exit={{ opacity: 0, y: -8, height: 0 }}
              className="flex items-center gap-2 text-xs text-rose-400 bg-rose-500/10 border border-rose-500/20 rounded-lg px-3 py-2"
            >
              <XCircle size={14} />
              {error}
            </motion.div>
          )}
        </AnimatePresence>

        {/* Preview Card */}
        <AnimatePresence mode="wait">
          {preview && (
            <motion.div
              initial={{ opacity: 0, y: 12, scale: 0.97 }}
              animate={{ opacity: 1, y: 0, scale: 1 }}
              exit={{ opacity: 0, y: 12, scale: 0.97 }}
              transition={{ duration: 0.35, ease: [0.16, 1, 0.3, 1] }}
              className="space-y-3"
            >
              {/* Author + Viral Score */}
              <div className="flex items-center justify-between">
                <div className="flex items-center gap-2.5">
                  <div className="w-9 h-9 rounded-full bg-[var(--color-bg-elevated)] border border-[var(--color-border-faint)] overflow-hidden flex items-center justify-center">
                    {preview.tweet.author.avatarUrl ? (
                      <img
                        src={preview.tweet.author.avatarUrl}
                        alt={preview.tweet.author.name}
                        className="w-full h-full object-cover"
                      />
                    ) : (
                      <XIcon size={16} className="text-neutral-400" />
                    )}
                  </div>
                  <div>
                    <div className="flex items-center gap-1">
                      <span className="text-sm font-medium">
                        {preview.tweet.author.name}
                      </span>
                      {preview.tweet.author.verified && (
                        <CheckCircle2
                          size={13}
                          className="text-neutral-400 fill-neutral-400"
                        />
                      )}
                    </div>
                    <span className="text-[11px] text-[var(--color-text-ghost)]">
                      @{preview.tweet.author.username}
                    </span>
                  </div>
                </div>

                {/* Viral Score Badge */}
                <div
                  className={cn(
                    "flex items-center gap-1.5 px-2.5 py-1.5 rounded-lg border text-xs font-medium",
                    viralBg(preview.viralScore)
                  )}
                >
                  <Flame size={13} className={viralColor(preview.viralScore)} />
                  <span className={viralColor(preview.viralScore)}>
                    {preview.viralScore}/100
                  </span>
                </div>
              </div>

              {/* Tweet Text */}
              <div className="bg-[var(--color-bg-elevated)] rounded-xl p-3 border border-[var(--color-border-faint)]">
                <p className="text-[13px] text-[var(--color-text-secondary)] leading-relaxed line-clamp-4">
                  {preview.tweet.text}
                </p>
              </div>

              {/* Media preview */}
              {preview.tweet.media.length > 0 && (
                <div className="flex gap-1.5 overflow-x-auto pb-1">
                  {preview.tweet.media.slice(0, 4).map((m, i) => (
                    <div
                      key={i}
                      className="w-16 h-16 rounded-lg bg-[var(--color-bg-elevated)] border border-[var(--color-border-faint)] overflow-hidden flex-shrink-0"
                    >
                      {m.type === "photo" ? (
                        <img
                          src={m.url}
                          alt={`Media ${i + 1}`}
                          className="w-full h-full object-cover"
                        />
                      ) : (
                        <div className="w-full h-full flex items-center justify-center text-[var(--color-text-ghost)]">
                          <ImageIcon size={20} />
                        </div>
                      )}
                    </div>
                  ))}
                </div>
              )}

              {/* Metrics */}
              <div className="grid grid-cols-4 gap-2">
                {[
                  {
                    icon: Heart,
                    value: preview.tweet.metrics.likes,
                    color: "text-rose-400",
                  },
                  {
                    icon: Repeat2,
                    value: preview.tweet.metrics.retweets,
                    color: "text-emerald-400",
                  },
                  {
                    icon: Eye,
                    value: preview.tweet.metrics.views,
                    color: "text-sky-400",
                  },
                  {
                    icon: MessageCircle,
                    value: preview.tweet.metrics.replies,
                    color: "text-amber-400",
                  },
                ].map(({ icon: Icon, value, color }, i) => (
                  <div
                    key={i}
                    className="flex items-center justify-center gap-1.5 py-2 rounded-lg bg-[var(--color-bg-elevated)]/50 border border-[var(--color-border-faint)]"
                  >
                    <Icon size={13} className={color} />
                    <span className="text-[11px] font-medium">
                      {formatNumber(value)}
                    </span>
                  </div>
                ))}
              </div>

              {/* Info badges */}
              <div className="flex flex-wrap gap-1.5">
                <span className="bg-neutral-500/10 text-neutral-400 border border-neutral-500/20 px-2 py-0.5 rounded-md text-[10px]">
                  {preview.contentType === "thread"
                    ? "Thread"
                    : preview.contentType === "quote_tweet"
                      ? "Alıntı"
                      : "Tweet"}
                </span>
                <span className="bg-neutral-500/10 text-neutral-400 border border-neutral-500/20 px-2 py-0.5 rounded-md text-[10px]">
                  ~{preview.estimatedDuration}s video
                </span>
                {preview.tweet.media.length > 0 && (
                  <span className="bg-neutral-500/10 text-neutral-400 border border-neutral-500/20 px-2 py-0.5 rounded-md text-[10px]">
                    {preview.tweet.media.length} medya
                  </span>
                )}
              </div>

              {/* Custom Title */}
              <input
                type="text"
                value={customTitle}
                onChange={(e) => setCustomTitle(e.target.value)}
                placeholder={preview.suggestedTitle}
                className="w-full h-10 px-3 rounded-xl bg-[var(--color-bg-elevated)] border border-[var(--color-border-faint)] text-sm text-[var(--color-text-primary)] placeholder:text-[var(--color-text-ghost)]/50 focus:border-neutral-500/50 focus:ring-1 focus:ring-neutral-500/25 outline-none transition-all"
              />

              {/* Create Button */}
              <button
                onClick={handleCreate}
                disabled={isCreatingProject}
                className={cn(
                  "w-full h-11 rounded-xl text-sm font-semibold shadow-sm transition-all flex items-center justify-center gap-2",
                  isCreatingProject
                    ? "bg-[var(--color-bg-surface)] text-[var(--color-text-ghost)] cursor-not-allowed"
                    : "bg-[var(--color-bg-inverted)] text-[var(--color-text-inverted)] hover:bg-neutral-800 active:scale-[0.98]"
                )}
              >
                {isCreatingProject ? (
                  <>
                    <Loader2 size={16} className="animate-spin" />
                    Senaryo üretiliyor...
                  </>
                ) : (
                  <>
                    <Sparkles size={16} />
                    Tweet&apos;ten Video Oluştur
                  </>
                )}
              </button>
            </motion.div>
          )}
        </AnimatePresence>

        {/* Success */}
        <AnimatePresence>
          {createdProject && (
            <motion.div
              initial={{ opacity: 0, scale: 0.95 }}
              animate={{ opacity: 1, scale: 1 }}
              exit={{ opacity: 0, scale: 0.95 }}
              className="flex items-center gap-3 p-3 rounded-xl bg-emerald-500/10 border border-emerald-500/25"
            >
              <CheckCircle2 size={18} className="text-emerald-400 shrink-0" />
              <div className="flex-1 min-w-0">
                <p className="text-sm font-medium text-emerald-300">
                  Proje oluşturuldu!
                </p>
                <p className="text-[11px] text-emerald-400/70 truncate">
                  {createdProject.title}
                </p>
              </div>
              <button
                onClick={() => {
                  if (onProjectCreated) onProjectCreated(createdProject.id);
                }}
                className="text-[11px] text-emerald-400 hover:text-emerald-300 font-medium transition-colors whitespace-nowrap"
              >
                Görüntüle →
              </button>
            </motion.div>
          )}
        </AnimatePresence>
      </div>
    </div>
  );
}
