import type { Dance } from "./types"
import { apiClient } from "./client"
import { handleApiError } from "./error-handler"

// 将后端 CardTemplate(dance) 数据映射到前端 Dance 类型
function mapBackendDance(item: any): Dance {
  const attrs = item.attributes || {}
  return {
    id: String(item.id),
    name: item.name,
    choreographer: attrs.choreographer || "",
    duration: attrs.duration || "",
    difficulty: attrs.difficulty || "",
    videoUrl: attrs.tutorial_video || item.model_url || "",
    coverUrl: item.image_url || "/placeholder.svg?height=300&width=400",
    description: item.description || "",
    motionFile: item.model_url || "",
    category: attrs.style || "",
    tags: [],
    createdAt: item.created_at || "",
    updatedAt: item.updated_at || "",
  }
}

// 获取舞蹈列表
export async function getDances(page = 1, limit = 10, search = "") {
  try {
    const searchParam = search ? `&search=${encodeURIComponent(search)}` : ""
    const response = await apiClient.get(
      `/card/category/dance/?page=${page}&page_size=${limit}${searchParam}`
    )

    const data = response.data?.data || response.data
    const results: any[] = data.results || data
    const total = data.count || results.length

    return {
      data: results.map(mapBackendDance),
      pagination: {
        page,
        limit,
        totalItems: total,
        totalPages: Math.ceil(total / limit),
      },
    }
  } catch (error) {
    return handleApiError(error)
  }
}

// 获取单个舞蹈详情
export async function getDance(id: string) {
  try {
    const response = await apiClient.get(`/card/templates/${id}/`)
    const data = response.data?.data || response.data
    return { data: mapBackendDance(data) }
  } catch (error) {
    return handleApiError(error)
  }
}

// 创建新舞蹈（需要管理员权限）
export async function createDance(danceData: Omit<Dance, "id" | "createdAt" | "updatedAt">) {
  try {
    const payload: any = {
      name: danceData.name,
      category: "dance",
      description: danceData.description || "",
      dance_attributes: {
        choreographer: danceData.choreographer || "",
        duration: danceData.duration || "",
        difficulty: danceData.difficulty || "",
        tutorial_video: danceData.videoUrl || "",
        style: danceData.category || "",
      },
    }
    if (danceData.coverUrl && !danceData.coverUrl.includes("placeholder")) {
      payload.image_url = danceData.coverUrl
    }

    const response = await apiClient.post(`/card/templates/`, payload)
    const data = response.data?.data || response.data
    return { data: mapBackendDance(data) }
  } catch (error) {
    return handleApiError(error)
  }
}

// 更新舞蹈（需要管理员权限）
export async function updateDance(id: string, danceData: Partial<Dance>) {
  try {
    const payload: any = {}
    if (danceData.name !== undefined) payload.name = danceData.name
    if (danceData.description !== undefined) payload.description = danceData.description

    const attrs: any = {}
    if (danceData.choreographer !== undefined) attrs.choreographer = danceData.choreographer
    if (danceData.duration !== undefined) attrs.duration = danceData.duration
    if (danceData.difficulty !== undefined) attrs.difficulty = danceData.difficulty
    if (danceData.videoUrl !== undefined) attrs.tutorial_video = danceData.videoUrl
    if (danceData.category !== undefined) attrs.style = danceData.category
    if (Object.keys(attrs).length > 0) payload.dance_attributes = attrs
    if (danceData.coverUrl !== undefined) payload.image_url = danceData.coverUrl

    const response = await apiClient.patch(`/card/templates/${id}/`, payload)
    const data = response.data?.data || response.data
    return { data: mapBackendDance(data) }
  } catch (error) {
    return handleApiError(error)
  }
}

// 删除舞蹈（需要管理员权限）
export async function deleteDance(id: string) {
  try {
    await apiClient.delete(`/card/templates/${id}/`)
    return { data: { id } }
  } catch (error) {
    return handleApiError(error)
  }
}