jam-cloud/web/app/controllers/api_search_controller.rb

class ApiSearchController < ApiController

  # have to be signed in currently to see this screen
  before_filter :api_signed_in_user, :except => :jam_tracks

  respond_to :json

  def index
    if 1 == params[Search::PARAM_MUSICIAN].to_i || 1 == params[Search::PARAM_BAND].to_i
      query = params.clone
      query[:remote_ip] = request.remote_ip
      if 1 == query[Search::PARAM_MUSICIAN].to_i
        @search = Search.musician_filter(query, current_user)
      else
        @search = Search.band_filter(query, current_user)
      end
      respond_with @search, responder: ApiResponder, :status => 200
    elsif 1 == params[Search::PARAM_SESSION_INVITE].to_i
      @search = Search.session_invite_search(params[:query], current_user)
    else
      @search = Search.text_search(params, current_user)
    end
  end

  def musicians
    if request.get?
      if params[:results]
        @search = MusicianSearch.user_search_filter(current_user).search_results_page
        respond_with @search, responder: ApiResponder, status: 201, template: 'api_search/index'
      else
        render :json => MusicianSearch.search_filter_json(current_user), :status => 200
      end

    elsif request.post?
      sobj = MusicianSearch.user_search_filter(current_user)
      filter = params[:filter]
      if filter == 'reset'
        @search = sobj.reset_search_results
      else
        json = JSON.parse(filter, :create_additions => false)
        @search = sobj.search_results_page(json, [params[:page].to_i, 1].max)
      end
      respond_with @search, responder: ApiResponder, status: 201, template: 'api_search/index'
    end
  end

  def bands
    if request.get?
      if params[:results]
        @search = BandSearch.user_search_filter(current_user).search_results_page(params[:subtype])
        respond_with @search, responder: ApiResponder, status: 201, template: 'api_search/index'
      else
        render :json => BandSearch.search_filter_json(current_user, params[:subtype]), :status => 200
      end

    elsif request.post?
      sobj = BandSearch.user_search_filter(current_user)
      filter = params[:filter]
      if filter == 'reset'
        @search = sobj.reset_search_results(params[:subtype])
      else
        json = JSON.parse(filter, :create_additions => false)
        @search = sobj.search_results_page(params[:subtype], json, [params[:page].to_i, 1].max)
      end
      respond_with @search, responder: ApiResponder, status: 201, template: 'api_search/index'
    end
  end

  def jam_tracks
    if request.get?
      if params[:iso639]
        render(json: JamTrackSearch.all_languages.to_json, status: 200)
        
      elsif params[:indexed]
        fname = "#{Rails.root}/tmp/jtx_indices.json"
        
        unless File.exists?(fname) && File.size(fname) > 0
          SampleApp::Application.load_tasks
          Rake::Task["mobile:jam_tracks_json"].invoke
        end
        json = JSON.parse(File.read(fname))
        render(json: json, status: 200)
        
      else
        render(json: {})
      end
      
    elsif request.post?
      jts = JamTrackSearch.new
      filter = request.params[:api_search]
      result = jts.search_results_page(filter)
      render(json: result.to_json, status: 200)
    end
  end

  #filter users by first fetching users from latency graph database 
  #for the latency filter options and then quering the relational 
  #database for other filter options 
  def filter
    latency_good = ActiveRecord::Type::Boolean.new.type_cast_from_user(params[:latency_good])
    latency_fair = ActiveRecord::Type::Boolean.new.type_cast_from_user(params[:latency_fair])
    latency_high = ActiveRecord::Type::Boolean.new.type_cast_from_user(params[:latency_high])
    
    begin
      user_ids = user_ids_by_latency(latency_good, latency_fair, latency_high)
      
      filter_params = {
        "sort_order"=>"latency", 
        "instruments"=>[], 
        "genres"=> [], 
        "concert_gigs"=>"-1", 
        "interests"=>"any", 
        "studio_sessions"=>"-1", 
        "ages"=>[], 
        "skill_level"=>"-1",
        "joined_within_days"=>"any"
      }

      filter_params.merge!(genres: params[:genres]) unless params[:genres].blank?

      beginner = ActiveRecord::Type::Boolean.new.type_cast_from_user(params[:proficiency_beginner])
      intermediate = ActiveRecord::Type::Boolean.new.type_cast_from_user(params[:proficiency_intermediate])
      expert = ActiveRecord::Type::Boolean.new.type_cast_from_user(params[:proficiency_expert])

      proficiency_levels = []
      proficiency_levels.push(1) if beginner
      proficiency_levels.push(2) if intermediate
      proficiency_levels.push(3) if expert
      
      instruments = params[:instruments]

      if instruments && instruments.any?
        inst = []
        instruments.each do |ii|
          proficiency_levels.each do |pl|
            inst << { instrument_id: ii, proficiency_level: pl}
          end
        end
        filter_params.merge!(instruments: inst) 
      end

      filter_params.merge!(joined_within_days: params[:joined_within_days]) unless params[:joined_within_days].blank?

      sobj = MusicianSearch.user_search_filter(current_user)
      @search = sobj.search_results_page(filter_params, [params[:page].to_i, 1].max, user_ids)
      
      respond_with @search, responder: ApiResponder, status: 201, template: 'api_search/index'

    rescue => exception
      logger.debug("Latency exception: #{exception.message}")
      Bugsnag.notify(exception) do |report|
        report.severity = "error"
        report.add_tab(:latency, {
          params: params,
          user_id: current_user.id,
          name: current_user.name,
          url: filter_latency_url,
        })
      end
      render json: {}, status: 500
    end

  end

private

  def filter_latency_url
    "#{Rails.application.config.latency_data_host}/search_users"
  end

  def user_ids_by_latency(latency_good, latency_fair, latency_high)
    user_ids = []
    if latency_good || latency_fair || latency_high
      uri = URI(filter_latency_url)
      begin
        http = Net::HTTP.new(uri.host, uri.port)
        http.use_ssl = true if Rails.application.config.latency_data_host.start_with?("https://")
        req = Net::HTTP::Post.new(uri)
        req["Authorization"] = "Basic #{Rails.application.config.latency_data_host_auth_code}"
        req["Content-Type"] = "application/json"
        req.body = {
          my_user_id: current_user.id,
          my_public_ip: request.remote_ip,
          my_device_id: nil,
          my_client_id: nil
        }.to_json

        response = http.request(req)
        
        if response.is_a?(Net::HTTPOK) || response.is_a?(Net::HTTPSuccess)
          graph_db_users = JSON.parse(response.body)["users"]
          if latency_good || latency_fair || latency_high
            graph_db_users.select! do |user|
              total_latency = user["ars"]["total_latency"].to_f
              (total_latency <= 40 && latency_good) ||
              (total_latency > 40 && total_latency <= 80 && latency_fair) ||
              (total_latency > 80 && latency_high)
              end
          end

          user_ids = graph_db_users.map { | user | user["user_id"] }.uniq
          
          return user_ids
        else
          logger.debug("Latency response failed: #{response}")
          Bugsnag.notify("LatencyResponseFailed") do |report|
            report.severity = "faliure"
            report.add_tab(:latency, {
              user_id: current_user.id,
              name: current_user.name,
              params: params,
              url: filter_latency_url,
              code: response.code,
              body: response.body,
            })
          end
        end
      rescue => exception
        raise exception
      end
    end
    user_ids
  end

end