/**
 * 项目相关 API
 * 素材库需要 project_id，前端自动管理默认项目
 */
import apiClient from "./client"

export interface ProjectItem {
  id: string
  name: string
  description: string
}

/** 后端 ProjectResponse 只返回 id, name, description */
interface BackendProjectResponse {
  id: string
  name: string
  description: string
}

/** 后端 ListProjectsResponse 返回 { items: [...] } */
interface BackendListProjectsResponse {
  items: BackendProjectResponse[]
}

const toProjectItem = (item: BackendProjectResponse): ProjectItem => ({
  id: item.id,
  name: item.name,
  description: item.description,
})

/** 获取当前用户的项目列表 */
export const getProjects = async (): Promise<ProjectItem[]> => {
  const response = await apiClient.get<BackendListProjectsResponse>("/projects")
  return (response.data.items || []).map(toProjectItem)
}

/** 创建项目 */
export const createProject = async (data: {
  name: string
  description?: string
}): Promise<ProjectItem> => {
  const response = await apiClient.post<BackendProjectResponse>("/projects", {
    name: data.name,
    description: data.description || "",
  })
  return toProjectItem(response.data)
}

/** 获取或创建默认项目（素材库需要 project_id） */
export const getOrCreateDefaultProject = async (): Promise<ProjectItem> => {
  const projects = await getProjects()
  if (projects.length > 0) {
    return projects[0]
  }
  // 没有项目时自动创建默认项目
  return createProject({
    name: "默认项目",
    description: "系统自动创建的默认项目",
  })
}