import { useRef, useCallback, useEffect } from "react"
import { createVoiceClone, toVoiceClone } from "@/api/voice-clone"
import { uploadAsset } from "@/api/assets"
import type { VoiceClone } from "@/api/voice-clone"

interface UseCloneSubmitOptions {
  voiceName: string
  voiceDescription: string
  selectedFile: File | null
  recordedBlob: Blob | null
  setPhase: (phase: "input" | "uploading" | "cloning" | "done") => void
  setErrorMessage: (msg: string) => void
  validateForm: () => string | null
  onSuccess?: (clone: VoiceClone) => void
  onClose: () => void
}

/**
 * 克隆提交流程 Hook
 * 封装上传 + 克隆 + 完成的三阶段流程
 */
export function useCloneSubmit({
  voiceName,
  voiceDescription,
  selectedFile,
  recordedBlob,
  setPhase,
  setErrorMessage,
  validateForm,
  onSuccess,
  onClose,
}: UseCloneSubmitOptions) {
  const timerRef = useRef<ReturnType<typeof setTimeout> | null>(null)

  /** 组件卸载时清理定时器 */
  useEffect(() => {
    return () => {
      if (timerRef.current) clearTimeout(timerRef.current)
    }
  }, [])

  const handleSubmit = useCallback(async () => {
    const formError = validateForm()
    if (formError) {
      setErrorMessage(formError)
      return
    }

    setErrorMessage("")

    try {
      // 阶段 1：上传音频
      setPhase("uploading")

      let fileToUpload: File
      if (selectedFile) {
        fileToUpload = selectedFile
      } else {
        fileToUpload = new File([recordedBlob!], `recorded-${Date.now()}.webm`, {
          type: "audio/webm",
        })
      }

      const formData = new FormData()
      formData.append("file", fileToUpload)
      const uploadResult = await uploadAsset(formData)

      // 阶段 2：克隆
      setPhase("cloning")
      const result = await createVoiceClone({
        name: voiceName.trim(),
        description: voiceDescription.trim() || undefined,
        audio_url: uploadResult.url,
      })

      // 阶段 3：完成
      setPhase("done")

      // 2秒后自动关闭
      timerRef.current = setTimeout(() => {
        onSuccess?.(toVoiceClone(result))
        onClose()
      }, 2000)
    } catch (err) {
      setPhase("input")
      setErrorMessage(err instanceof Error ? err.message : "克隆失败，请重试")
    }
  }, [
    validateForm,
    selectedFile,
    recordedBlob,
    voiceName,
    voiceDescription,
    setPhase,
    setErrorMessage,
    onSuccess,
    onClose,
  ])

  return { handleSubmit }
}