#coding=utf-8
module Mobile
  module Apis
    class Courses < Grape::API
      resource :courses do
        desc "获取所有课程"
        params do
          optional :school_id, type: Integer, desc: '传入学校id,返回该学校课程列表'
          requires :per_page_count, type: Integer, desc: '每页总数'
          requires :page, type: Integer, desc: '当前页码'
        end
        get do
          cs = CoursesService.new
          courses = cs.course_list(params)
          present :data, courses, with: Mobile::Entities::Course
          present :status, 0
        end

        desc "新建课程[TODO,参数没弄清]"
        params do
        end
        post do
        end

        desc "编辑课程[TODO,参数没弄清]"
        params do
        end
        post do
        end

        desc "加入课程"
        params do
        end
        post ":id" do
          authenticate!
          cs = CoursesService.new
          status = cs.join_course({"object_id" => params[:id]},current_user.id)
          out = {status: status}
          message = case status
          when 0; "加入成功"
          when 1; "密码错误"
          when 2; "课程已过期 请联系课程管理员重启课程。(在配置课程处)"
          when 3; "您已经加入了课程"
          when 4; "您加入的课程不存在"
          when 5; "您还未登录"
          else; "未知错误，请稍后再试"
          end
          out.merge(message: message)
        end

        desc "退出课程"
        params do
        end
        delete ":id" do
          authenticate!
          cs = CoursesService.new
          cs.exit_course({"object_id" => params[:id]}, current_user.id)
          {status: 0}
        end

        desc "搜索课程"
        params do
          requires :name, type: String, desc: "课程名"
        end
        get 'search' do
          cs = CoursesService.new
          courses = cs.search_course(params)
          present :data, courses, with: Mobile::Entities::Course
          present :status, 0
        end

        desc "课程老师列表"
        params do
          requires :course_id, type: Integer, desc: "课程id"
        end
        get 'teachers' do
          cs = CoursesService.new
          teachers = cs.course_teacher_or_student_list({role: 1}, params[:course_id],current_user)
          {status: 0, data: teachers}
        end

        desc "课程学生列表"
        params do
          requires :course_id, type: Integer, desc: "课程id"
        end
        get 'teachers' do
          cs = CoursesService.new
          teachers = cs.course_teacher_or_student_list({role: 2}, params[:course_id],current_user)
          {status: 0, data: teachers}
        end

        desc "返回单个课程"
        params do
          requires :id, type: Integer
        end
        route_param :id do
          get do
            cs = CoursesService.new
            course = cs.show_course params,current_user
            #course = Course.find(params[:id])
            {status: 0, data: course}
          end
        end

      end
    end
  end
end