require_relative 'GqlClient'
require_relative 'Media'
require_relative 'Medialist'
require_relative 'User'

module Anilistrb
  class Client
    def initialize
      @gql_client = Anilistrb::GqlClient.new('https://graphql.anilist.co')
      @gql_dir = File.expand_path('./GraphQL', __dir__)
      @gql_queries = {
        'media_by_id'       => File.read("#{@gql_dir}/media_by_id.gql"),
        'media_by_pages'    => File.read("#{@gql_dir}/media_by_pages.gql"),
        'media_by_search'   => File.read("#{@gql_dir}/media_by_search.gql"),
        'medialist_by_user' => File.read("#{@gql_dir}/medialist_by_user.gql"),
        'user_by_id'        => File.read("#{@gql_dir}/user_by_id.gql"),
        'user_by_search'    => File.read("#{@gql_dir}/user_by_search.gql")
      }
    end

    def get_anime(id)
      begin
        raise TypeError unless id.is_a? Integer
        Anilistrb::Media.new(gql_request(
          @gql_queries['media_by_id'], { id: id, type: 'ANIME' }
        )['data']['Media'])
        rescue StandardError
          nil
      end
    end

    def get_manga(id)
      begin
        raise TypeError unless id.is_a? Integer
        Anilistrb::Media.new(gql_request(
          @gql_queries['media_by_id'], { id: id, type: 'MANGA' }
        )['data']['Media'])
        rescue StandardError then nil
      end
    end

    def get_animelist(userId)
      begin
        raise TypeError unless userId.is_a? Integer
        Anilistrb::Medialist.new(gql_request(
          @gql_queries['medialist_by_user'], { id: userId, type: 'ANIME' }
        )['data']['MediaListCollection'], 'ANIME')
        rescue StandardError then nil
      end
    end

    def get_mangalist(userId)
      begin
        raise TypeError unless userId.is_a? Integer
        Anilistrb::Medialist.new(gql_request(
          @gql_queries['medialist_by_user'], { id: userId, type: 'MANGA' }
        )['data']['MediaListCollection'], 'MANGA')
        rescue StandardError then nil
      end
    end

    def search_anime(search)
      Anilistrb::Media.new(gql_request(
        @gql_queries['media_by_search'], { search: search, type: 'ANIME' }
      )['data']['Media'])
    end

    def search_manga(search)
      Anilistrb::Media.new(gql_request(
        @gql_queries['media_by_search'], { search: search, type: 'MANGA' }
      )['data']['Media'])
    end

    def search_anime_paged(search:, perPage: 10, page: 1)
      search_media_paged(search: search, type: 'ANIME', perPage: perPage, page: page)
    end

    def search_manga_paged(search:, perPage: 10, page: 1)
      search_media_paged(search: search, type: 'MANGA', perPage: perPage, page: page)
    end

    def search_media_paged(search:, type:, perPage: 10, page: 1)
      media = []
      begin
        raise TypeError unless perPage.is_a? Integer
        raise TypeError unless page.is_a? Integer
        gql_request(
          @gql_queries['media_by_pages'], 
          { search: search, type: type, perPage: perPage, page: page }
        )['data']['Page']['media'].each { |x| media.push(Anilistrb::Media.new(x)) }
        rescue StandardError then nil
      end
      media
    end

    def search_user(search)
      Anilistrb::User.new(gql_request(
        @gql_queries['user_by_search'], 
        { search: search }
      )['data']['User'])
    end

    def gql_request(query, variables)
      @gql_client.request(method: 'POST', query: query, variables: variables)
    end

  end
end