gallery/app/controllers/admin/galleries_controller.rb

require 'rubyXL'
class Admin::GalleriesController < OrbitAdminController
  include Admin::GalleriesHelper
  before_filter :setup_vars
  before_action :authenticate_user, :except => "imgs"
  before_action :log_user_action
  find_tag = Tag.all.select{|value| value.name==I18n.t('gallery.not_show_desc')}
    if find_tag.length==0
      module_app_id = ModuleApp.where(:key=>"gallery").first[:_id]
      tags = ModuleApp.where(:key=>"gallery").first.tags
      tag0 = Tag.new(is_default: false,module_app_ids: [module_app_id])
      tag1 = Tag.new(is_default: false,module_app_ids: [module_app_id])
      nowlocale = I18n.locale
      I18n.available_locales.each do |locale|
        I18n.locale = locale
        tag0.name = I18n.t('gallery.show_desc')
        tag1.name = I18n.t('gallery.not_show_desc')
      end
      I18n.locale = nowlocale
      tag0.save
      tag1.save
      tags << tag0
      tags << tag1
    end
  def save_crop
    begin
    images = AlbumImage.all.select{|value| params[:id].include? value.id.to_s}
    id = images.first.album_id.to_s
    x = params['x']
    y = params['y']
    w = params['w']
    h = params['h']
    cords = x.zip(y,w,h)
    count = cords.length
    images.each_with_index do |image,index|
        cord = cords[index]
	    if image.album_crops.first.nil?
	        image.album_crops.create(crop_x: cord[0],crop_y: cord[1],crop_w: cord[2],crop_h: cord[3])
	    else
	        image.album_crops.first.update_attributes(crop_x: cord[0],crop_y: cord[1],crop_w: cord[2],crop_h: cord[3])
	    end
	end
	@@finish = false
	@@start = false
    Thread.new do
        @@start = true
        images.each_with_index do |image,index|
            @@progress_percent = (index*100.0/count).floor.to_s+'%'
	        all_version = image.file.versions.map{|k,v| k}
	        begin
	            #org_fname = image.file.path
            	#org_extname = File.extname(org_fname)
            	#org_fname.slice! org_extname
	            #FileUtils.cp(org_fname + org_extname, org_fname + '_resized' + org_extname)
	            @@progress_filename = image[:file].to_s
        	    all_version.each do |version|
        	        if !(version.to_s == 'resized' && crop_but_no_backup(image)) 
                	    image.file.recreate_versions! version
                	    image.save!
                	end
            	end
        	rescue => e
        	    @@progress_filename = e.inspect.to_s
        	    puts e.inspect
        	end
    	end
    	@@finish = true
	end
	rescue => e
	    puts e.inspect
	end
	redirect_url = "/admin/galleries/crop_process"
	render :json => {'href' => redirect_url}.to_json
  end
  def call_translate
    text = params['text']
    render :json => {'translate' => "#{t(text.to_s)}" }.to_json
  end
  def recreate_image
    notalive =  @@progress_percent.nil? rescue true
    if notalive
        if !params['album_id'].to_s.empty?
            choice_ids = params['album_id'].split(',')
            albums = Album.all.select { |value| (choice_ids.include? value.id.to_s)}
            if !(params['use_default']=='true')
                color = params['color_choice'].to_s.empty? ? 'transparent' : params['color_choice']
                albums.each do |album|
                    if album.album_colors.first.nil?
                        album.album_colors.create('color' => color)
                    else
                        album.album_colors.first.update_attributes('color' => color, 'updated_at' => Time.now)
                    end
                end
            end
            @@start = false
    		count = 0
            albums.each{|album| count+=album.album_images.count }
            @@finish = false
            Thread.new do
                @@start = true
                i = 0
                albums.each do |album|
                    album.album_images.each do |image|
                        error = nil
                        all_version = image.file.versions.map{|k,v| k}
            	        begin
                    	    all_version.each do |version|
                        	    if !(version.to_s == 'resized' && crop_but_no_backup(image)) 
                            	    image.file.recreate_versions! version
                            	    image.save!
                            	end
                        	end
                    	rescue => error
                    	end
                        @@progress_percent = (i*100.0/count).floor.to_s+'%'
                        if !error.nil?
                            @@progress_filename = error.inspect.to_s.encode('UTF-8', invalid: :replace, undef: :replace, replace: '?')
                            sleep(1)
                        else
                            @@progress_filename = image[:file].to_s
                        end
                        i+=1
                    end
                end
                @@finish = true
            end
        else
            @@start = true
            @@progress_filename = ''
            @@finish = true
            @@progress_percent = '100%'
        end
    end
  end
  def finish_recreate
    @@progress_percent = nil
    @@progress_filename = nil
    @@start = false
    render :text => ''
  end
  def recreate_progress
    if self.class.class_variable_defined? :@@start
      if @@start
          render :json => {'percent' => (@@progress_percent rescue '0%'), 'filename' => (@@progress_filename rescue ''), 'finish' => (@@finish rescue false) }.to_json
      else
          render :json => {'percent' => '0%', 'filename' => '', 'finish' => false }.to_json
      end
    else
      render :json => {'percent' => '0%', 'filename' => '', 'finish' => false }.to_json
    end
  end
  def index
    Album.each do |album|
        if album.album_colors.first.nil?
            album.album_colors.create('color' => '#000000')
        end
    end
    @tags = @module_app.tags
    categories = @module_app.categories.enabled
    @filter_fields = filter_fields(categories, @tags)
    @filter_fields.delete(:status)
    @albums = Album.where(:order => -1).desc(:created_at).with_categories(filters("category")).with_tags(filters("tag"))
    @albums = search_data(@albums,[:name])
    albums = Album.where(:order.gt => -1).asc(:order).with_categories(filters("category")).with_tags(filters("tag"))
    albums = search_data(albums,[:name])
    @albums = @albums.concat(albums)
    if AlbumColor.count!=0
        if AlbumColor.all.desc('updated_at').first[:color] == 'transparent'
            @color_save = ''
        else
            @color_save = AlbumColor.desc('updated_at').first[:color]
        end
    else
        @color_save = '#000000'
    end
    if request.xhr?
      render :partial => "album", :collection => @albums
    end

  end

  def show
    @album = Album.find(params[:id])
    @images = @album.album_images.where(:order => -1).desc(:created_at)
    images = @album.album_images.where(:order.gt => -1).asc(:order)
    @images = @images.concat(images)
    image_content = []
    @images.each do |image|
      image_content << {"id" => image.id.to_s, "description" => image.description_translations,"tags" => image.tags.collect{|t| t.id.to_s}}
    end
    @tags = @module_app.tags
    @photos_data = {"galleries" => image_content}.to_json
  end

  def new
    @album = Album.new
    @tags = @module_app.tags
    @categories = @module_app.categories
  end

  def create
    album = Album.new(album_params)
    album.save!
    redirect_to admin_galleries_path
  end

  def destroy
    album = Album.find(params[:id])
    album.destroy
    redirect_to admin_galleries_path
  end

  def edit
      @album = Album.find(params[:id])
      if can_edit_or_delete?(@album)
        @tags = @module_app.tags
        @categories = @module_app.categories
      else
        render_401
      end
  end

  def import
    @album = Album.find(params[:id])
  end

  def importimages
    album = Album.find(params[:id])
    workbook = RubyXL::Parser.parse(params["import_file"].tempfile)
    sheet = workbook[0]
    if sheet.count <= 203
      sheet.each_with_index do |row, i|
        next if i < 3
        v = row.cells.first.value
        next if v == "" || v.nil?
        import_this_image(row, album)
      end
      redirect_to admin_gallery_path(album.id)
    else
      redirect_to import_admin_gallery_path(:error => "1")
    end
  end

  def excel_format
    @album = Album.find(params[:id])
    respond_to do |format|
      format.xlsx {
        response.headers['Content-Disposition'] = 'attachment; filename="gallery_import_format.xlsx"'
      }
    end
  end

  def set_cover
    if params[:set_cover] == "true"
      album = Album.find(params[:album_id])
      image = AlbumImage.find(params[:image_id])
      album.update_attributes({:cover_path => image.file.thumb.url, :cover=>params[:image_id]})
    else
      album = Album.find(params[:album_id])
      album.update_attributes({:cover_path => nil, :cover=>"default"})
    end
    render :json =>{"success"=>true}.to_json
  end

  def get_photoData_json
    @album = Album.find(params[:id])
     @images = @album.album_images.where(:order => -1).desc(:created_at)
    images = @album.album_images.where(:order.gt => -1).asc(:order)
     @images = @images.concat(images)
    image_content = []
    @images.each do |image|
      image_content << {"id" => image.id.to_s, "description" => image.description_translations,"tags" => image.tags.collect{|t| t.id.to_s}}
    end
    render :json=>{"galleries" => image_content}.to_json
  end

  def get_album_json
    albums = Album.all
    output = Array.new

    albums.each do |album|
      tag_names = Array.new

      album.tag_ids.each do |tag|
        tag_names << get_tags.include?(tag)
      end
      if album.cover_path
        cover_path = album.cover_path
      else
        cover_path = "/assets/gallery/default.jpg"
      end
      output << {
        album_cover_file: "http://#{request.host_with_port}"+cover_path,
        album_name: album.name,
        album_tag_names: tag_names,
        album_link:"http://#{request.host_with_port}#{panel_gallery_back_end_album_get_imgs_json_path(album)}",
      }
    end

    render :json=>JSON.pretty_generate(output)
  end

  def get_imgs_json
    album = Album.find(params[:album_id])
    images = album.album_images.all
    output = Array.new

    images.each do |image|
      tags = Array.new

      image.tag_ids.each do |tag|
        tags << get_tags.include?(tag)
      end
       
      if image.file.theater.present?
        @image_file = image.file.theater.url
      else
        @image_file = image.file.url
      end

      output << {
        image_title: image.title,
        image_description: image.description,
        image_file: { url: "http://#{request.host_with_port}#{@image_file}",
                      thumb: "http://#{request.host_with_port}#{image.file.thumb.to_s}"},
                      image_tag_names: tags}
    end

    render :json=>JSON.pretty_generate(output)
  end

  def imgs
    @album = Album.find(params[:gallery_id])
    @tag_names = Array.new
    @images = @album.album_images.asc(:order)
    @output =  Array.new
    @images.each do |values|
    @output << { _id:  values.id.to_s,
                 theater_link: admin_image_path(values),
                 description: values.description,
                 title: values.title,
                 file: values.file.as_json[:file],
                 gallery_album_id: values.album_id,
                 order: values.order,
                 tags: values.tags}
    end
      render :json=>{"images" => @output, "tags" => @album.tags}.to_json
  end


  def upload_process
    if AlbumUnprocess.first.upload_success
        album_unprocess = AlbumUnprocess.all
        count = album_unprocess.count
        Thread.new do
            begin 
            @@start = true
            album_unprocess.each_with_index do |un_image,i|
              album = AlbumImage.all.select{|value| value.id.to_s == un_image.image_id.to_s}[0]
              album.file = un_image.save_var
              album.save!
              file = un_image.save_var.tempfile
              file.close
              File.delete file.path
              un_image.delete
              @@progress_filename = album[:file]
              @@progress_percent = ((i+1)*100.0/count).floor.to_s + '%'
            end
            rescue => e
                puts ['err',e.inspect]
            end
            @@finish = true
        end
    album_temp = AlbumUnprocess.first
    album_temp.upload_success = false
    album_temp.save!
    end
  end
  def start_upload_process
    album_temp = AlbumUnprocess.first
    album_temp.upload_success = true
    album_temp.save!
    render :json => {}.to_json
  end
  def init_upload
    Thread.current['count'] = params['all_length'].to_i
    @@start = false
    @@finish = false
    @@progress_percent = '0%'
    @@progress_filename = 'processing!!'
    render :json => {}.to_json
  end
  def upload_image
    album = Album.find(params[:album_id])
    files = params['files']
    album_unprocess = AlbumUnprocess.new()
    files.each do |file|
        image = album.album_images.new
        image.tags = (album.tags rescue [])
        if Thread.current['count']==1
          image.file = file
        else
          album_unprocess.image_id = image.id
          album_unprocess.upload_success = false
          album_unprocess.save_var = file
          album_unprocess.save!
          ObjectSpace.undefine_finalizer(file.tempfile)
        end
        image.save!
    end
    render :json=>{"files"=>[{}]}.to_json
  end

  def last_image_id
    album = Album.find(params[:albumid])
    lastimage = album.album_images.last
    render :json => {"last_image_id" => lastimage.id.to_s}.to_json
  end

  def new_images 
    @album = Album.find(params[:album_id])
    if params[:last_image_id].present?
      lastimage = AlbumImage.find(params[:last_image_id])
      @newimages = @album.album_images.where(:created_at.gt => lastimage.created_at,:order => -1).desc(:created_at)
    else
      @newimages = @album.album_images.where(:order => -1).desc(:created_at)
    end
    render :layout=>false
  end


  def images_tags
    album = Album.find(params[:album_id])
    tags = Array.new
    images = album.album_images.all
    images.each do |image|
      tags << {"id"=>image.id, "tags" => image.tags}
    end
    render :json=>tags.to_json
  end

  def update
    album = Album.find(params[:id])
    tagsToDestroy = []
    tagsToAdd = []
    new_tags = params[:album][:tags] || []
    old_tags = album.tags.collect{|t| t.id.to_s}
    old_tags.each do |tag|
       if !new_tags.include?(tag)
        tagsToDestroy << tag
        end
    end
    if new_tags != nil
      new_tags.each do |tag|
        if !old_tags.include?(tag)
          tagsToAdd << tag
        end
      end
    end
    update_children_image_tag(album,tagsToDestroy,tagsToAdd)
    album.update_attributes(album_params)
    redirect_to "/admin/galleries/"+album.id.to_s
  end

  def update_children_image_tag(album,tagsToDestroy,tagsToAdd)
      # tagsToDestroy will contain  all tag ids which have to be deleted from the galley_images
      # tagsToAdd will contain all tag ids which ve to be added in tall album_images
      images = album.album_images
      images.each do |image|
        image_tags = image.tags.collect{|t| t.id.to_s}
        tagsToAdd.each do |tag|
          image_tags << tag
        end
        tagsToDestroy.each do |tag|
          if image_tags.include?tag
            image_tags.delete(tag)
          end
        end
        image.tags = image_tags
        image.save
      end
  end

  private
  def crop_but_no_backup image
    fname = image.file.path
    extension = File.extname(fname)
    base_name = fname.chomp(extension)
    base_name += ('_resized'+ extension)
    File.file?(base_name)
  end
  def setup_vars
  	@module_app = ModuleApp.where(:key=>"gallery").first
  end

  def album_params
  	p = params.require(:album).permit!
    p["tags"] = p["tags"] || []
    p
  end
end