import { ForumCategory, ForumPost, ForumTopic } from '@/proxy/forum/forum'
import apiService from '@/services/api.service'

export interface ForumSearchResult {
  categories: ForumCategory[]
  topics: ForumTopic[]
  posts: ForumPost[]
  totalCount: number
}

export interface SearchParams {
  query: string
  categoryId?: string
  topicId?: string
  searchInCategories?: boolean
  searchInTopics?: boolean
  searchInPosts?: boolean
  page?: number
  pageSize?: number
}

export interface PaginatedResponse<T> {
  items: T[]
  totalCount: number
  pageNumber: number
  pageSize: number
  totalPages: number
}

export interface CreateTopicRequest {
  title: string
  content: string
  categoryId: string
  isPinned?: boolean
  isLocked?: boolean
  tenantId?: string
}

export interface CreatePostRequest {
  topicId: string
  content: string
  parentPostId?: string
  tenantId?: string
}

export interface CategoryListParams {
  page?: number
  pageSize?: number
  isActive?: boolean
  search?: string
}

export interface TopicListParams {
  page?: number
  pageSize?: number
  categoryId?: string
  isPinned?: boolean
  isSolved?: boolean
  search?: string
}

export interface PostListParams {
  page?: number
  pageSize?: number
  topicId?: string
  isAcceptedAnswer?: boolean
  search?: string
}

class ForumService {
  // Search
  async search(params: SearchParams): Promise<ForumSearchResult> {
    const response = await apiService.fetchData<ForumSearchResult>({
      url: '/api/app/forum/search',
      method: 'GET',
      params,
    })
    return response.data
  }

  // Categories
  async getCategories(params: CategoryListParams = {}): Promise<PaginatedResponse<ForumCategory>> {
    const response = await apiService.fetchData<PaginatedResponse<ForumCategory>>({
      url: '/api/app/forum/categories',
      method: 'GET',
      params,
    })
    return response.data
  }

  async getCategoryById(id: string): Promise<ForumCategory> {
    const response = await apiService.fetchData<ForumCategory>({
      url: `/api/app/forum/categories/${id}`,
      method: 'GET',
    })
    return response.data
  }

  async getCategoryBySlug(slug: string): Promise<ForumCategory> {
    const response = await apiService.fetchData<ForumCategory>({
      url: `/api/app/forum/categories/by-slug`,
      method: 'GET',
      params: { slug },
    })
    return response.data
  }

  // Topics
  async getTopics(params: TopicListParams = {}): Promise<PaginatedResponse<ForumTopic>> {
    const response = await apiService.fetchData<PaginatedResponse<ForumTopic>>({
      url: '/api/app/forum/topics',
      method: 'GET',
      params,
    })
    return response.data
  }

  async getTopicById(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/topic`,
      method: 'GET',
    })
    return response.data
  }

  async createTopic(data: CreateTopicRequest): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: '/api/app/forum/topic',
      method: 'POST',
      data: {...data},
    })
    return response.data
  }

  async updateTopic(id: string, data: Partial<CreateTopicRequest>): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/topic`,
      method: 'PUT',
      data,
    })
    return response.data
  }

  async deleteTopic(id: string): Promise<void> {
    await apiService.fetchData({
      url: `/api/app/forum/${id}/topic`,
      method: 'DELETE',
    })
  }

  async likeTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/like-topic`,
      method: 'POST',
    })
    return response.data
  }

  async unlikeTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/unlike-topic`,
      method: 'POST',
    })
    return response.data
  }

  async pinTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/pin-topic`,
      method: 'POST',
    })
    return response.data
  }

  async unpinTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/unpin-topic`,
      method: 'POST',
    })
    return response.data
  }

  async lockTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/lock-topic`,
      method: 'POST',
    })
    return response.data
  }

  async unlockTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/unlock-topic`,
      method: 'POST',
    })
    return response.data
  }

  async solvedTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/solved-topic`,
      method: 'POST',
    })
    return response.data
  }

  async unsolvedTopic(id: string): Promise<ForumTopic> {
    const response = await apiService.fetchData<ForumTopic>({
      url: `/api/app/forum/${id}/unsolved-topic`,
      method: 'POST',
    })
    return response.data
  }

  // Posts
  async getPosts(params: PostListParams = {}): Promise<PaginatedResponse<ForumPost>> {
    const response = await apiService.fetchData<PaginatedResponse<ForumPost>>({
      url: '/api/app/forum/posts',
      method: 'GET',
      params,
    })
    return response.data
  }

  async getPostById(id: string): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: `/api/app/forum/posts/${id}`,
      method: 'GET',
    })
    return response.data
  }

  async createPost(data: CreatePostRequest): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: '/api/app/forum/post',
      method: 'POST',
      data: {...data},
    })
    return response.data
  }

  async updatePost(id: string, data: Partial<CreatePostRequest>): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: `/api/app/forum/${id}/post`,
      method: 'PUT',
      data,
    })
    return response.data
  }

  async deletePost(id: string): Promise<void> {
    await apiService.fetchData({
      url: `/api/app/forum/${id}/post`,
      method: 'DELETE',
    })
  }

  async likePost(id: string): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: `/api/app/forum/${id}/like-post`,
      method: 'POST',
    })
    return response.data
  }

  async unlikePost(id: string): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: `/api/app/forum/${id}/unlike-post`,
      method: 'POST',
    })
    return response.data
  }

  async markPostAsAcceptedAnswer(id: string): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: `/api/app/forum/${id}/mark-post`,
      method: 'POST',
    })
    return response.data
  }

  async unmarkPostAsAcceptedAnswer(id: string): Promise<ForumPost> {
    const response = await apiService.fetchData<ForumPost>({
      url: `/api/app/forum/${id}/unmark-post`,
      method: 'POST',
    })
    return response.data
  }

  // Forum statistics
  async getForumStats(): Promise<{
    totalCategories: number
    totalTopics: number
    totalPosts: number
    totalUsers: number
    activeUsers: number
  }> {
    const response = await apiService.fetchData<{
      totalCategories: number
      totalTopics: number
      totalPosts: number
      totalUsers: number
      activeUsers: number
    }>({
      url: '/api/app/forum/stats',
      method: 'GET',
    })

    return response.data
  }
}

export const forumService = new ForumService()