require_dependency "educode_sales/application_controller"

module EducodeSales
  class ActivitiesController < ApplicationController
    def index
      respond_to do |format|
        format.html do
         @staffs = Staff.all.map { |d| [ d.user&.real_name, d.id ]}
        end
        format.json do
          @activities = Activity
          if params[:q].present?
            if params[:q][:staff_id].present?
              @activities = @activities.where(staff_id: params[:q][:staff_id])
            end
            if params[:q][:clazz_id].present?
              @activities = @activities.where(clazz_id: params[:q][:clazz_id])
            end
            
            if params[:q][:name].present?
              @activities = @activities.where("educode_sales_activities.name like ?", "%#{params[:q][:name]}%")
            end
            if params[:q][:manage].present?
              @activities = @activities.joins("JOIN educode_sales_activity_staffs AS m ON m.activity_id = educode_sales_activities.id AND m.clazz_id = 0").where("m.staff_id = ?", params[:q][:manage].to_i)
            end
            if params[:q][:assists].present?
              @activities = @activities.joins("JOIN educode_sales_activity_staffs AS a ON a.activity_id = educode_sales_activities.id AND a.clazz_id = 1").where("a.staff_id = ?", params[:q][:assists].to_i)
            end
            if params[:q][:expert].present?
              @activities = @activities.joins("JOIN educode_sales_activity_staffs AS e ON e.activity_id = educode_sales_activities.id AND e.clazz_id = 2").where("e.name like ?", "%#{params[:q][:expert]}%")
            end
          end
          if params[:sort].present? && params[:sort][:field]
            @activities = @activities.order("#{params[:sort][:field]} #{params[:sort][:order]}")
          else
            @activities = @activities.order("created_at desc")
          end
          @activities = @activities.distinct.page(params[:page]).per(params[:limit])
        end
      end
    end

    def new
      @clazz = ['全国会议', '区域会议', '单校会议', '国赛', '省赛', '夏令营']
      gon.staff_manage = Staff.all.map { |d| {name: d.user&.real_name, value: d.id}}
      render layout: false
    end

    def edit
      @activity = Activity.find(params[:id])
      manage_ids = @activity.manages.pluck(:staff_id)
      assist_ids = @activity.assists.pluck(:staff_id)
      gon.staff_manage = Staff.all.map { |d| {name: d.user&.real_name, value: d.id, selected: manage_ids.include?(d.id)}}
      gon.assists = Staff.all.map { |d| {name: d.user&.real_name, value: d.id, selected: assist_ids.include?(d.id)}}
      gon.experts = @activity.experts.map { |d| {name: d.name, value: d.user_id || d.name, selected: true}}
      render layout: false
    end

    def create
      activity = @current_admin.activities.new(activity_params)

      # render_success
      if activity.save
        params[:staff_manage_id].each do |d|
          EducodeSales::ActivityStaff.create(staff_id: d, clazz_id: 'manage', activity_id: activity.id)
        end
        params[:staff_assist_id].each do |d|
          EducodeSales::ActivityStaff.create(staff_id: d, clazz_id: 'assist', activity_id: activity.id)
        end
        params[:expert_ids].each do |d|
          if d[0].to_i > 0
            u = User.find(d[0].to_i)
            EducodeSales::ActivityStaff.create(name: u.real_name, clazz_id: 'expert', user_id: d[0].to_i, activity_id: activity.id)
          else
            EducodeSales::ActivityStaff.create(name: d[1], clazz_id: 'expert', activity_id: activity.id)
          end
        end
        if params[:attachment_id].present?
          attachment = @current_admin.user.attachments.find(params[:attachment_id])
          attachment.container = activity
          attachment.save
        end
        render_success
      else
        render_failure activity
      end
    end

    def update
      activity = Activity.find(params[:id])
      activity.assign_attributes(name: params[:name], start_at: params[:start_at], days: params[:days])
      manages = []
      experts = []
      assists = []
      params[:staff_manage_id].each do |d|
        manages << EducodeSales::ActivityStaff.find_or_initialize_by(staff_id: d, clazz_id: 'manage', activity_id: activity.id)
      end
   
      params[:staff_assist_id].each do |d|
        assists << EducodeSales::ActivityStaff.find_or_initialize_by(staff_id: d, clazz_id: 'assist', activity_id: activity.id)
      end
      params[:expert_ids].each do |d|
        if d[0].to_i > 0
          u = User.find(d[0].to_i)
          experts << EducodeSales::ActivityStaff.find_or_initialize_by(name: u.real_name, clazz_id: 'expert', user_id: d[0].to_i, activity_id: activity.id)
        else
          experts << EducodeSales::ActivityStaff.find_or_initialize_by(name: d[1], clazz_id: 'expert', activity_id: activity.id)
        end
      end
      activity.manages = manages
      activity.assists = assists
      activity.experts = experts

      if params[:attachment_id].present?
        if activity.attachment&.id && activity.attachment&.id != params[:attachment_id].to_i
          file_path = File.join(Rails.root, "public", "files", 'educode_sales', activity.attachment.disk_filename)
          File.delete(file_path) if File.exist?(file_path)
          activity.attachment.destroy
        end
        attachment = @current_admin.user.attachments.find(params[:attachment_id])
        attachment.container = activity
        attachment.save
      else
        if activity.attachment
          file_path = File.join(Rails.root, "public", "files", 'educode_sales', activity.attachment.disk_filename)
          File.delete(file_path) if File.exist?(file_path)
          activity.attachment.destroy
        end
      end
      if activity.save
        render_success
      else
        render_failure activity
      end
    end

    def destroy
      activity = Activity.find(params[:id])
      if activity.attachment
        file_path = File.join(Rails.root, "public", "files", 'educode_sales', activity.attachment.disk_filename)
        File.delete(file_path) if File.exist?(file_path)
        activity.attachment.destroy
      end
      activity.destroy
      render_success
    rescue ActiveRecord::DeleteRestrictionError => e
      render_failure '该活动已有数据产生，暂不能删除'
    end

    def show_teachers
      render layout: false
    end

    def show_schools
      respond_to do |format|
        format.html do
          render layout: false
        end
        format.json do
          @data = EducodeSales::ActivityTeacher.joins(teacher: [department: :school]).where(activity_id: params[:id]).select("count(teacher_id) AS teachers_count, departments.name AS department, schools.name AS school, school_id").group("school_id")
          @data = @data.distinct.page(params[:page]).per(params[:limit])
        end
      end
    end

    private

    def activity_params
      params.permit(:name, :start_at, :days, :staff_assist_id, :staff_manage_id, :clazz_id, :expert)
    end

  end
end