/**
 * 随机混剪 — 配音选择弹窗（#1970）
 * 内容复用 Step5VoiceSelect 的配音库音频卡片（图标+文件名+时长/大小+▶试听），
 * 无 TTS / 克隆音色入口；确认后进入 Step2。
 */
import React from "react"
import { Modal } from "antd"
import { AudioOutlined } from "@ant-design/icons"
import { useNavigate } from "react-router-dom"
import { useQuery } from "@tanstack/react-query"
import { useState, useRef, useCallback } from "react"
import { getAssetsByKind } from "@/api/assets"
import type { AssetItem } from "@/api/assets"

interface VoiceSelectModalProps {
  open: boolean
  selectedVoice: string
  onCancel: () => void
  onConfirm: (voiceAssetId: string) => void
}

const getDuration = (item: AssetItem): number =>
  item.duration ?? (item.metadata?.duration as number) ?? 0
const getFileSize = (item: AssetItem): number =>
  item.file_size ?? (item.metadata?.file_size as number) ?? 0
const isAiVoice = (item: AssetItem): boolean => {
  const d = getDuration(item)
  const s = getFileSize(item)
  return (!d || d <= 0) && (!s || s <= 0)
}
const fmtDur = (s?: number): string => {
  if (!s || s <= 0) return "时长未知"
  return `${s.toFixed(1)}秒`
}
const fmtSize = (b?: number): string => {
  if (!b || b <= 0) return "未知"
  if (b < 1024) return `${b} B`
  if (b < 1024 * 1024) return `${(b / 1024).toFixed(1)} KB`
  if (b < 1024 * 1024 * 1024) return `${(b / (1024 * 1024)).toFixed(1)} MB`
  return `${(b / (1024 * 1024 * 1024)).toFixed(1)} GB`
}

const VoiceSelectModal: React.FC<VoiceSelectModalProps> = ({
  open,
  selectedVoice,
  onCancel,
  onConfirm,
}) => {
  const navigate = useNavigate()
  const [innerSelected, setInnerSelected] = React.useState(selectedVoice)
  const [playingId, setPlayingId] = useState<string | null>(null)
  const audioRef = useRef<HTMLAudioElement | null>(null)

  React.useEffect(() => {
    if (open) setInnerSelected(selectedVoice)
  }, [open, selectedVoice])

  const { data: materials = [], isLoading } = useQuery({
    queryKey: ["assets", "voice", "modal"],
    queryFn: () => getAssetsByKind("voice", { limit: 50 }),
    enabled: open,
  })

  const togglePlay = useCallback(
    (item: AssetItem) => {
      if (playingId === item.id && audioRef.current) {
        audioRef.current.pause()
        setPlayingId(null)
        return
      }
      if (audioRef.current) audioRef.current.pause()
      if (!item.file_url) return
      const audio = new Audio(item.file_url)
      audioRef.current = audio
      setPlayingId(item.id)
      audio.onended = () => {
        setPlayingId(null)
        audioRef.current = null
      }
      audio.play().catch(() => {
        setPlayingId(null)
        audioRef.current = null
      })
    },
    [playingId],
  )

  const handleGoUpload = () => navigate("/app/voices?tab=material&upload=1")

  const handleConfirm = () => {
    if (!innerSelected) return
    onConfirm(innerSelected)
  }

  return (
    <Modal
      title="🎙️ 选择配音"
      open={open}
      onCancel={onCancel}
      onOk={handleConfirm}
      okText="确认选择"
      cancelText="取消"
      okButtonProps={{ disabled: !innerSelected, style: { background: "#7c3aed" } }}
      width={720}
      destroyOnClose
    >
      <p style={{ color: "#666", fontSize: 13, marginBottom: 12 }}>
        从配音库中选择已上传的音频素材，点击 ▶ 可试听
      </p>
      {isLoading ? (
        <div style={{ textAlign: "center", padding: "40px 0", color: "#999" }}>加载中...</div>
      ) : materials.length === 0 ? (
        <div style={{ textAlign: "center", padding: "40px 0", color: "#999" }}>
          <AudioOutlined style={{ fontSize: 48, color: "#d9d9d9", marginBottom: 12 }} />
          <p style={{ marginBottom: 12 }}>暂无配音素材</p>
          <button
            type="button"
            onClick={handleGoUpload}
            style={{
              padding: "8px 20px",
              background: "#7c3aed",
              color: "#fff",
              border: "none",
              borderRadius: 6,
              cursor: "pointer",
            }}
          >
            去配音库上传
          </button>
        </div>
      ) : (
        <div
          style={{
            display: "grid",
            gridTemplateColumns: "repeat(auto-fill, minmax(200px, 1fr))",
            gap: 12,
            maxHeight: 460,
            overflowY: "auto",
            paddingRight: 4,
          }}
        >
          {materials.map((item) => {
            const isSel = innerSelected === item.id
            const isPlaying = playingId === item.id
            return (
              <div
                key={item.id}
                onClick={() => setInnerSelected(item.id)}
                style={{
                  padding: 14,
                  borderRadius: 8,
                  border: isSel ? "2px solid #7c3aed" : "1px solid #e8e8e8",
                  background: isSel ? "#ede9fe" : "#fff",
                  cursor: "pointer",
                  transition: "all 0.2s",
                }}
              >
                <div
                  style={{
                    display: "flex",
                    alignItems: "center",
                    justifyContent: "space-between",
                  }}
                >
                  <div
                    style={{
                      width: 36,
                      height: 36,
                      borderRadius: 8,
                      background: isSel
                        ? "linear-gradient(135deg,#7c3aed,#a78bfa)"
                        : "linear-gradient(135deg,#f0f0f0,#e8e8e8)",
                      display: "flex",
                      alignItems: "center",
                      justifyContent: "center",
                    }}
                  >
                    <AudioOutlined style={{ color: isSel ? "#fff" : "#666" }} />
                  </div>
                  {item.file_url && (
                    <button
                      type="button"
                      onClick={(e) => {
                        e.stopPropagation()
                        togglePlay(item)
                      }}
                      style={{
                        width: 30,
                        height: 30,
                        borderRadius: "50%",
                        border: "none",
                        background: isPlaying ? "#ef4444" : "#7c3aed",
                        color: "#fff",
                        cursor: "pointer",
                        fontSize: 12,
                      }}
                    >
                      ▶
                    </button>
                  )}
                </div>
                <div
                  style={{
                    fontSize: 13,
                    fontWeight: 500,
                    marginTop: 8,
                    overflow: "hidden",
                    textOverflow: "ellipsis",
                    whiteSpace: "nowrap",
                    color: isSel ? "#6d28d9" : "#333",
                  }}
                  title={item.name}
                >
                  {item.name}
                </div>
                <div
                  style={{
                    display: "flex",
                    justifyContent: "space-between",
                    fontSize: 11,
                    color: "#999",
                    marginTop: 4,
                  }}
                >
                  {isAiVoice(item) ? (
                    <span style={{ color: "#7c3aed", fontWeight: 500 }}>AI 音色</span>
                  ) : (
                    <span>{fmtDur(getDuration(item))}</span>
                  )}
                  <span>{isAiVoice(item) ? "按文本合成" : fmtSize(getFileSize(item))}</span>
                </div>
              </div>
            )
          })}
        </div>
      )}
    </Modal>
  )
}

export default VoiceSelectModal