"use client"
import { useEffect, useState } from "react"
import { createPortal } from "react-dom"
import { X, LayoutGrid, Sparkle, Wand2, Brush } from "lucide-react"
import { type Job, effectiveFrameUrl, cutoutUrl } from "@/lib/api"

interface Props {
  job: Job | null
  frameIndex: number | null
  onClose: () => void
}

export function StoryboardEditor({ job, frameIndex, onClose }: Props) {
  const [mounted, setMounted] = useState(false)
  useEffect(() => setMounted(true), [])
  useEffect(() => {
    if (frameIndex === null) return
    const onKey = (e: KeyboardEvent) => { if (e.key === "Escape") onClose() }
    window.addEventListener("keydown", onKey)
    return () => window.removeEventListener("keydown", onKey)
  }, [frameIndex, onClose])

  if (!mounted || !job || frameIndex === null) return null
  const frame = job.frames.find((f) => f.index === frameIndex)
  if (!frame) return null

  const elements = frame.elements ?? []
  const elementsWithCutout = elements.filter((e) => e.cutout_id)
  const seq = job.frames.filter((f) => f.timestamp <= frame.timestamp).length

  return createPortal(
    <div
      onClick={onClose}
      className="fixed inset-0 z-[150] bg-black/80 backdrop-blur-xl flex items-center justify-center p-6"
      style={{ animation: "drawer-in 0.2s cubic-bezier(0.32, 0.72, 0, 1)" }}
    >
      <div
        onClick={(e) => e.stopPropagation()}
        className="w-full max-w-5xl bg-black/60 rounded-2xl border border-white/15 overflow-hidden flex flex-col"
        style={{ maxHeight: "88vh" }}
      >
        {/* 顶部栏 — 分镜头编排用紫粉渐变 */}
        <div
          className="flex items-center justify-between px-4 py-2.5 text-white"
          style={{ background: "linear-gradient(135deg, #d946ef, #ec4899)" }}
        >
          <div className="flex items-center gap-2">
            <LayoutGrid className="h-4 w-4" />
            <span className="text-[14px] font-semibold">分镜头编排</span>
            <span className="text-[11px] text-white/70 font-mono ml-2">
              分镜 {seq} · {frame.timestamp.toFixed(2)}s
            </span>
          </div>
          <button
            onClick={onClose}
            className="h-7 w-7 rounded-md bg-white/10 hover:bg-white/20 text-white inline-flex items-center justify-center"
            title="关闭 (Esc)"
          >
            <X className="h-4 w-4" />
          </button>
        </div>

        {/* 主体 — 左大图 + 右素材 / 操作 */}
        <div className="flex gap-4 p-4 overflow-hidden flex-1 min-h-0">
          {/* 左：分镜大图 */}
          <div className="flex-shrink-0 flex flex-col gap-2" style={{ width: 360 }}>
            <img
              src={effectiveFrameUrl(job.id, frame)}
              alt={`frame ${frame.index}`}
              className="w-full rounded-lg object-contain"
              style={{ maxHeight: "65vh" }}
            />
            <div className="text-[10.5px] text-white/50 text-center">
              {frame.cleaned_applied ? "✨ 已清洗版本" : "原图"}
            </div>
          </div>

          {/* 右：元素 + Phase 2 操作占位 */}
          <div className="flex-1 min-w-0 overflow-y-auto space-y-3">
            <section>
              <div className="text-[12.5px] font-semibold text-white mb-1.5 flex items-center gap-1.5">
                <Sparkle className="h-3.5 w-3.5 text-violet-300" />
                该分镜的元素清单
                <span className="text-[10px] text-white/40 font-mono">
                  · {elementsWithCutout.length}/{elements.length} 已裁切
                </span>
              </div>
              {elements.length === 0 ? (
                <div className="rounded-md border border-dashed border-white/15 p-3 text-[11px] text-white/40">
                  暂无元素 · 到关键帧节点画框提取后会出现在这里
                </div>
              ) : (
                <div className="grid grid-cols-4 gap-2">
                  {elements.map((e) => (
                    <div key={e.id} className="rounded-md bg-white/[0.04] border border-white/10 p-1.5">
                      <div className="w-full aspect-square rounded bg-black/40 overflow-hidden mb-1">
                        {e.cutout_id ? (
                          <img
                            src={cutoutUrl(job.id, frame.index, e.id)}
                            alt={e.name_zh}
                            className="w-full h-full object-contain"
                          />
                        ) : (
                          <div className="w-full h-full inline-flex items-center justify-center">
                            <Sparkle className="h-4 w-4 text-white/20" />
                          </div>
                        )}
                      </div>
                      <div className="text-[10.5px] text-white truncate">{e.name_zh}</div>
                      <div className="text-[9px] text-white/40 font-mono truncate">{e.name_en || "(无英文)"}</div>
                    </div>
                  ))}
                </div>
              )}
            </section>

            {/* 编排操作占位（Phase 2） */}
            <section className="rounded-lg border border-dashed border-violet-300/30 bg-violet-500/5 p-3">
              <div className="text-[12.5px] font-semibold text-white mb-2 flex items-center gap-1.5">
                <Wand2 className="h-3.5 w-3.5 text-violet-300" />
                编排操作 · Phase 2 待实施
              </div>
              <div className="grid grid-cols-3 gap-2">
                <button
                  disabled
                  className="rounded-md bg-white/[0.04] border border-white/10 p-2.5 text-left disabled:opacity-50 cursor-not-allowed"
                >
                  <div className="text-[11.5px] font-medium text-white mb-0.5 inline-flex items-center gap-1">
                    📐 多视角
                  </div>
                  <div className="text-[9.5px] text-white/45 leading-tight">
                    侧面 / 正投影俯视 / 正投影仰视等同元素不同视图
                  </div>
                </button>
                <button
                  disabled
                  className="rounded-md bg-white/[0.04] border border-white/10 p-2.5 text-left disabled:opacity-50 cursor-not-allowed"
                >
                  <div className="text-[11.5px] font-medium text-white mb-0.5 inline-flex items-center gap-1">
                    <Brush className="h-3 w-3" /> 风格融合
                  </div>
                  <div className="text-[9.5px] text-white/45 leading-tight">
                    元素 + 自由风格 prompt 生成新画面
                  </div>
                </button>
                <button
                  disabled
                  className="rounded-md bg-white/[0.04] border border-white/10 p-2.5 text-left disabled:opacity-50 cursor-not-allowed"
                >
                  <div className="text-[11.5px] font-medium text-white mb-0.5 inline-flex items-center gap-1">
                    🎬 布局调整
                  </div>
                  <div className="text-[9.5px] text-white/45 leading-tight">
                    拖动元素 / 调整画面结构
                  </div>
                </button>
              </div>
              <div className="mt-2 text-[10px] text-white/35 leading-relaxed">
                这些功能稍后填入。当前先用关键帧节点的「清洗 + 提取」准备好素材。
              </div>
            </section>
          </div>
        </div>

        {/* 底部 */}
        <div className="px-4 py-1.5 text-[10px] text-white/40 font-mono text-center border-t border-white/5 bg-white/[0.02]">
          ESC 关闭
        </div>
      </div>
    </div>,
    document.body,
  )
}
