class AttendanceTrackerController < ApplicationController
  def index
    @courses = Course.active.sort_by(&:title)
    @current_lecture = get_current_lecture
  end

  def overview
    @courses = Course.active.sort_by(&:title)
    @current_lecture = get_current_lecture
  end

  def today
    @courses = Course.active.sort_by(&:title)
    @date = Date.today
    @current_lecture = get_current_lecture
    @lectures = @courses.flat_map { |course| course.lectures.filter { |a| a.start_time.today? } }.sort_by { |l| l.start_time }
  end

  def course_focus
    @course = Course.find(params[:id])
    @current_lecture = get_current_lecture
  end

  private

  def get_current_lecture
    current_time_entry = Toggl.current_time_entry
    return nil if current_time_entry.nil?

    lecture = Lecture
                .joins(:course)
                .find_by(title: current_time_entry['description'], course: { toggl_project: current_time_entry['project_id'] })

    return lecture if lecture.present?

    start_time = Time.new(current_time_entry['start'])
    lecture = Lecture.joins(:course)
                     .find_by(start_time: (start_time - 10.minutes)..(start_time + 10.minutes), course: { toggl_project: current_time_entry['project_id'] })

    return lecture if lecture.present?

    nil
  end
end