# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class MessagesController < ApplicationController
  include ApplicationHelper
  before_filter :authorize1, :only => [:show]
  menu_item :boards
  default_search_scope :messages
  before_filter :find_board, :only => [:new, :preview,:edit]
  before_filter :find_attachments, :only => [:preview]
  before_filter :find_message, :except => [:new, :preview, :join_org_subfield, :get_subfield_on_click_org, :join_org_subfields]
  before_filter :authorize, :except => [:preview, :edit, :destroy, :new,:join_org_subfield, :get_subfield_on_click_org, :join_org_subfields]

  helper :boards
  helper :watchers
  helper :attachments
  include AttachmentsHelper
  helper :project_score

  include CoursesHelper

  REPLIES_PER_PAGE = 25 unless const_defined?(:REPLIES_PER_PAGE)

  # Show a topic and its replies
  def show
    @isReply = true
    page = params[:page]
    # Find the page of the requested reply
    if params[:r] && page.nil?
      offset = @topic.children.count(:conditions => ["#{Message.table_name}.id < ?", params[:r].to_i])
      page = 1 + offset / REPLIES_PER_PAGE
    end
    all_comments = []
    @reply_count = get_all_children(all_comments, @topic).count
    @reply = Message.new(:subject => "RE: #{@message.subject}")
    if @course
      messages_replies =  @topic.children.
          includes(:author, :attachments, {:board => :project}).
          reorder("#{Message.table_name}.created_on DESC").
          #limit(@reply_pages.per_page).
          #offset(@reply_pages.offset).
          all
      @replies = paginateHelper messages_replies,10
      @reply = Message.new(:subject => "RE: #{@message.subject}")
      render :action => "show", :layout => "base_courses"#by young
    elsif @project
      @reply_pages = Paginator.new @reply_count, REPLIES_PER_PAGE, page
      @replies =  @topic.children.
          includes(:author, :attachments, {:board => :project}).
          reorder("#{Message.table_name}.created_on DESC").
          limit(@reply_pages.per_page).
          offset(@reply_pages.offset).
          all

      @reply = Message.new(:subject => "RE: #{@message.subject}")
      render :action => "show", :layout => "base_projects"#by young
    else
      @reply_pages = Paginator.new @reply_count, REPLIES_PER_PAGE, page
      @replies =  @topic.children.
          includes(:author, :attachments, {:board => :project}).
          reorder("#{Message.table_name}.created_on DESC").
          limit(@reply_pages.per_page).
          offset(@reply_pages.offset).
          all

      @reply = Message.new(:subject => "RE: #{@message.subject}")
      @organization = @org_subfield.organization
      render :action => "show", :layout => "base_org"#by young
    end
  end

  # Create a new topic
  def new
    if User.current.logged?
      @message = Message.new
      @message.author = User.current
      @message.board = @board
      @message.safe_attributes = params[:message]
      if request.post?
        @message.save_attachments(params[:attachments])
        if @message.save
          # 更新kindeditor上传的图片资源所有者
          if params[:asset_id]
            ids = params[:asset_id].split(',')
            update_kindeditor_assets_owner ids,@message.id,OwnerTypeHelper::MESSAGE
          end

          call_hook(:controller_messages_new_after_save, { :params => params, :message => @message})
          render_attachment_warning_if_needed(@message)
          if params[:is_board]
            if @project
              redirect_to project_boards_path(@project)
            elsif @course
              redirect_to course_boards_path(@course)
            end
          else
            redirect_to board_message_url(@board, @message)
          end
        else
          if params[:is_board]
            if @project
              redirect_to project_boards_path(@project, :flag => true)
            elsif @course
              redirect_to course_boards_path(@course, :flag => true)
            end
          else
            layout_file = @project ? 'base_projects' : 'base_courses'
            render :action => 'new', :layout => layout_file
          end

        end
      else
        respond_to do |format|
          format.html {
            layout_file = @project ? 'base_projects' : 'base_courses'
            render :layout => layout_file
          }
        end
      end
    else
      redirect_to signin_path
    end
  end

  # Reply to a topic
  def reply
    if params[:parent_id]
      parent = Message.find params[:parent_id]
      @reply = Message.new
      @reply.author = User.current
      @reply.board = parent.board
      @reply.content = params[:content]
      @reply.subject = "RE: #{parent.subject}"
      @reply.reply_id = params[:reply_id]
      # @reply.reply_id = params[:id]
      parent.children << @reply
      @topic = params[:activity_id].nil? ? parent : Message.find(params[:activity_id].to_i)
      @user_activity_id = params[:user_activity_id] if params[:user_activity_id]
      @is_course = params[:is_course] if params[:is_course]
      @is_board = params[:is_board] if params[:is_board]
    else
      @quote = params[:quote][:quote]
      @reply = Message.new
      @reply.author = User.current
      @reply.board = @board
      @reply.safe_attributes = params[:reply]
      @reply.content = @quote + @reply.content
      @reply.subject = "RE: #{@topic.subject}" unless params[:reply][:subject]
      @topic.children << @reply
      # @reply.reply_id = params[:id]
    end

    update_course_activity(@topic.class,@topic.id)
    update_user_activity(@topic.class,@topic.id)
    update_forge_activity(@topic.class,@topic.id)
    update_org_activity(@topic.class,@topic.id)

    #@topic.update_attribute(:updated_on, Time.now)
    if !@reply.new_record?
      if params[:asset_id]
        ids = params[:asset_id].split(',')
        update_kindeditor_assets_owner ids,@reply.id,OwnerTypeHelper::MESSAGE
      end

      call_hook(:controller_messages_reply_after_save, { :params => params, :message => @reply})
      attachments = Attachment.attach_files(@reply, params[:attachments])
      render_attachment_warning_if_needed(@reply)
    else
      #render file: 'messages#show', layout: 'base_courses'
    end
    if params[:user_activity_id]
      @user_activity_id = params[:user_activity_id]
      @is_course = params[:is_course]
      @is_board = params[:is_board]
      respond_to do |format|
        format.js
      end
      return
    else
      redirect_to board_message_url(@board, @topic)
      return
    end

  end

  # Edit a message
  def edit
    @isReply = false
    if @project
      (render_403; return false) unless @message.editable_by?(User.current)
    elsif @course
      (render_403; return false) unless @message.course_editable_by?(User.current)
    else
      (render_403; return false) unless @message.org_subfield_editable_by?(User.current)
    end

    @message.safe_attributes = params[:message]
    if request.post? && @message.save
      attachments = Attachment.attach_files(@message, params[:attachments])
      render_attachment_warning_if_needed(@message)
      #flash[:notice] = l(:notice_successful_update)
      @message.reload
      if params[:is_course] && params[:is_course].to_i == 0
        redirect_to user_activities_path(User.current.id)
      elsif params[:is_course] && params[:is_course].to_i == 1 && params[:is_board] && params[:is_board].to_i == 0
        if @project
          redirect_to project_path(@project)
        elsif @course
          redirect_to course_activity_path(@course)
        end
      elsif params[:is_course] && params[:is_course].to_i == 1 && params[:is_board] && params[:is_board].to_i == 1
        if @project
          redirect_to project_boards_path(@project)
        elsif @course
          redirect_to course_boards_path(@course)
        end
      else
        redirect_to board_message_url(@message.board, @message.root, :r => (@message.parent_id && @message.id))
      end
    elsif request.get? || request.post?
      if params[:is_course] && params[:is_board]
        @is_course = params[:is_course]
        @is_board = params[:is_board]
      end
      respond_to do |format|
        format.html {
          if @project
            layout_file = 'base_projects'
          elsif @course
            layout_file = 'base_courses'
          elsif @org_subfield
            @organization = @org_subfield.organization
            layout_file = 'base_org'
          end
          render :layout => layout_file
        }
      end
    end
  end

  # Delete a messages
  def destroy
    if params[:user_activity_id]
      @message.destroy
      @topic = Message.find(params[:activity_id].to_i)
      @user_activity_id = params[:user_activity_id]
      @is_course = params[:is_course]
      @is_board = params[:is_board]
      respond_to do |format|
        format.js
      end
      return
    end
    if @project
      (render_403; return false) unless @message.destroyable_by?(User.current)
    elsif @course
      (render_403; return false) unless @message.course_destroyable_by?(User.current)
    else
      (render_403; return false) unless @message.org_subfield_editable_by?(User.current)
    end
    r = @message.to_param
    @message.destroy
    # modify by nwb
    if @project
      if params[:is_course] && params[:is_course].to_i == 0
        redirect_to user_activities_path(User.current.id)
      elsif params[:is_course] && params[:is_course].to_i == 1 && params[:is_board] && params[:is_board].to_i == 0
        redirect_to project_path(@project)
      elsif params[:is_course] && params[:is_course].to_i == 1 && params[:is_board] && params[:is_board].to_i == 1
        redirect_to project_boards_path(@project)
      elsif @message.parent
        redirect_to board_message_url(@board, @message.parent, :r => r)
      else
        redirect_to project_board_url(@project, @board)
      end
    elsif @course
      if params[:is_course] && params[:is_course].to_i == 0
        redirect_to user_activities_path(User.current.id)
      elsif params[:is_course] && params[:is_course].to_i == 1 && params[:is_board] && params[:is_board].to_i == 0
        redirect_to course_activity_path(@course)
      elsif params[:is_course] && params[:is_course].to_i == 1 && params[:is_board] && params[:is_board].to_i == 1
        redirect_to course_boards_path(@course)
      elsif @message.parent
        redirect_to board_message_url(@board, @message.parent, :r => r)
      else
        redirect_to course_boards_path(@course)
      end
    elsif @org_subfield
      if params[:is_board]
        redirect_to organization_path(:id => @org_subfield.organization_id, :org_subfield_id => @org_subfield.id)
      else
        if @message.parent
          redirect_to board_message_url(@board, @message.parent, :r => r)
        else
          redirect_to organization_path(:id => @org_subfield.organization_id, :org_subfield_id => @org_subfield.id)
        end
      end
    end
  end

  def quote
    # @subject = @message.subject
    # @subject = "RE: #{@subject}" unless @subject.starts_with?('RE:')
    #
    # @content = "> #{ll(Setting.default_language, :text_user_wrote, @message.author)}\n> "
    # @temp = Message.new
    # @temp.content = "<blockquote>#{ll(Setting.default_language, :text_user_wrote, @message.author.show_name)} <br/>#{@message.content.html_safe}</blockquote>".html_safe
  end

  def preview
    message = @board.messages.find_by_id(params[:id])
    @text = (params[:message] || params[:reply])[:content]
    @previewed = message
    render :partial => 'common/preview'
  end

  def join_org_subfield
    @message = Message.find(params[:message_id])
    @organizations = User.current.organizations
  end

  def get_subfield_on_click_org
    @org = Organization.find(params[:organization_id])
  end

  def join_org_subfields
    org_subfield_ids = params[:org_subfields]
    @message = Message.find(params[:id])
    # @message.update_attribute(:updated_on, Time.now)
    # type = @message.board.course_id.nil? ? "Project":"Course"
    org_subfield_ids.each do |field_id|
      @message.quotes = @message.quotes.nil? ? 1 : (@message.quotes + 1)
      @message.save
      board = OrgSubfield.find(field_id).boards.first
      mes = Message.create(:board_id => board.id, :subject => @message.subject, :content => @message.content, :author_id => User.current.id,
                           :created_on => Time.now, :updated_on => Time.now, :locked => @message.locked, :sticky => @message.sticky)
      @message.attachments.each do |attach|
        mes.attachments << Attachment.new(:filename => attach.filename, :disk_filename => attach.disk_filename, :filesize => attach.filesize, :content_type => attach.content_type, :digest => attach.digest,
                  :downloads => 0, :author_id => User.current.id, :created_on => Time.now, :description => attach.description, :disk_directory => attach.disk_directory, :attachtype => attach.attachtype,
                  :is_public => attach.is_public,  :quotes => 0)
      end
      # OrgSubfieldMessage.create(:org_subfield_id => field_id.to_i, :message_id => mes.id, :message_type => type)
      # org_acts = OrgActivity.where("container_type='OrgSubfield' and container_id=? and org_act_type='Message' and org_act_id=?", field_id.to_i, @message.id)
      # if org_acts.all.size() > 0
      #   org_acts.first.update_attribute(:updated_at, Time.now)
      # else
      OrgActivity.create(:container_type => 'OrgSubfield', :container_id => field_id.to_i, :org_act_type=>'Message', :org_act_id => mes.id, :user_id => User.current.id)
      # end
    end
  end

  private
  def find_message
    return unless find_board
    @message = @board.messages.find(params[:id], :include => :parent)
    @topic = @message.root
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  def find_board
    #modify by nwb
    @board = Board.find(params[:board_id])
    if @board.project_id != -1 && @board.project_id != nil
      @project = @board.project
    elsif  @board.course_id
      @course = @board.course
    else
      @org_subfield = @board.org_subfield
      @organization = @org_subfield
    end

  rescue ActiveRecord::RecordNotFound
    render_404
    nil
  end
end