#coding=utf-8

class SyllabusesService

  include ApplicationHelper
  include CoursesHelper

  #获取指定用户的课程大纲
  def user_syllabus(user)
    courses = CoursesService.new.user_courses_list(user)

    other = Syllabus.new(title: '未命名课程')

    courses.each do |c|
      other.courses << c[:course] unless c[:course].syllabus
    end
    
    user.syllabuses.each do |syllabus|
      syllabus.courses = syllabus.courses.not_deleted
    end

    user.syllabuses.to_a << other
  end

  def after_create_course(course, user)
      #unless User.current.admin?
      r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
      m = Member.new(:user => user, :roles => [r])
      m.project_id = -1
      course_info = CourseInfos.new(:user_id => user.id, :course_id => course.id)
      #user_grades = UserGrade.create(:user_id => User.current.id, :course_id => @course.id)
      course.members << m
      course.course_infos << course_info
  end

  #创建大纲
  # params {title: '大纲名称', [{course}, {course}]}
  def create(user, title, courses = [])
    sy = Syllabus.new(title: title, user_id: user.id)
    ActiveRecord::Base.transaction() do
      sy.save!

      courses.each do |course|
        if ::Course === course
          course.syllabus_id = sy.id
          course.save!
        elsif Hash === course
          c = ::Course.new(course)
          c.tea_id = user.id
          c.syllabus_id = sy.id
          c.update_default_value
          c.is_public = 0
          c.save!
          after_create_course(c, user)
        end
      end

    end

    sy
  end


end