import { apiClient } from "@/lib/api-client"
import type { PaginatedResponse, ApiResponse } from "@/types/api"
import type { SkillTreeChapter, SkillTreeFormData } from "@/types/skill-tree"

export interface FetchChaptersParams {
  page?: number
  limit?: number
  categoryId?: string
}

export async function fetchChapters(
  params: FetchChaptersParams = {}
): Promise<PaginatedResponse<SkillTreeChapter>> {
  const searchParams = new URLSearchParams()
  if (params.page) searchParams.set("page", String(params.page))
  if (params.limit) searchParams.set("limit", String(params.limit))
  if (params.categoryId) searchParams.set("categoryId", params.categoryId)

  return apiClient
    .get("skill-tree", { searchParams })
    .json<PaginatedResponse<SkillTreeChapter>>()
}

export async function createChapter(
  data: SkillTreeFormData
): Promise<ApiResponse<SkillTreeChapter>> {
  return apiClient.post("skill-tree", { json: data }).json<ApiResponse<SkillTreeChapter>>()
}

export async function updateChapter(
  id: string,
  data: Partial<SkillTreeFormData>
): Promise<ApiResponse<SkillTreeChapter>> {
  return apiClient
    .put(`skill-tree/${id}`, { json: data })
    .json<ApiResponse<SkillTreeChapter>>()
}

export async function deleteChapter(id: string): Promise<ApiResponse<{ id: string }>> {
  return apiClient.delete(`skill-tree/${id}`).json<ApiResponse<{ id: string }>>()
}

export async function reorderChapters(
  items: { id: string; sortOrder: number }[]
): Promise<ApiResponse<void>> {
  return apiClient
    .patch("skill-tree/reorder", { json: { items } })
    .json<ApiResponse<void>>()
}