class UniversalTablesController < ApplicationController
	include Admin::UniversalTablesHelper
	def index
		params = OrbitHelper.params
		table = UTable.where(:category_id => OrbitHelper.page_categories.first).first rescue nil
		page = Page.where(:page_id => params[:page_id]).first
		if !table.nil?
			reset = "hide"
			csrf_value = (0...46).map { ('a'..'z').to_a[rand(26)] }.join
			params_column = params["column"].to_s.gsub("\"",'')
			params_q = params["q"].to_s.gsub("\"",'')
			params_no = params["page_no"].to_s.gsub("\"",'')
			table_heads = table.table_columns.where(:display_in_index => true).asc(:order).collect do |tc|
				search = ""
				sort_class = "sort"
				sort = ""
				form_field = "<input type=\"hidden\" name=\"authenticity_token\" value=\"#{csrf_value}\"><input type='search' class='form-control' name='q' placeholder='Search keyword'>"
				query_string = ""
				query_string = "&column=#{params_column}&q=#{params_q}" if params["column"].present?
				query_string = query_string + "&page_no=#{params_no}" if params["page_no"].present?
				sort_url = "/#{I18n.locale.to_s}#{page.url}?sortcolumn=#{tc.key}&sort=asc#{query_string}"
				title_class = ""
				case tc.type
				when "date"
					search = "hide"
				when "period","image"
					sort_class = "sort hide"
					search = "hide"
					sort_url = "#"
					sort = "hide"
				when "editor"
					sort_url = "#"
					sort = "hide"
					sort_class = "sort hide"
				when "text"
					if tc.make_categorizable
						select_values = tc.column_entries.distinct(:text).uniq
						form_field = "<input type=\"hidden\" name=\"authenticity_token\" value=\"#{csrf_value}\"><select class='form-control' name='q'>"
						select_values.each do |sv|
							form_field = form_field + "<option value='#{sv[I18n.locale.to_s]}'>#{sv[I18n.locale.to_s]}</option>"
						end
						form_field = form_field + "</select>"
					end
				end

				if params["sortcolumn"] == tc.key
					sort_class = params["sort"] == "asc" ? "sort-desc" : "sort-asc"
					sort_url = "/#{I18n.locale.to_s}#{page.url}?sortcolumn=#{tc.key}&sort=#{params["sort"] == "asc" ? "desc" : "asc"}#{query_string}"
				end

				title_class = title_class + "no-sort" if sort == "sort"
				title_class = title_class + " no-search" if search == "hide"

				{
					"title" => tc.title,
					"type" => tc.type,
					"key" => tc.key,
					"search" => search,
					"form-field" => form_field,
					"sort" => sort,
					"sort-class" => sort_class,
					"sort-url" => sort_url,
					"title-class" => title_class
				}
			end
			tablecolumns = table.table_columns.where(:display_in_index => true).asc(:order)
			rows = []
			entries = get_entries(params, table, page)
			total_pages = entries.total_pages
			entries.each do |te|
				cols = []
				sort_value = ""
				tablecolumns.each do |column|
					ce = te.column_entries.where(:table_column_id => column.id).first rescue nil
					if !ce.nil?
						text = ""
						case ce.type
						when "text"
							text = ce.text
						when "editor"
							text = ce.content
						when "date"
							text = format_date(ce.date, column.date_format)
						when "period"
							text = format_date(ce.period_from, column.date_format) + " ~ " + format_date(ce.period_to, column.date_format)
							text = "" if text.starts_with?(" ~")
						when "image"
							text = "<img src='#{ce.image.thumb.url}' class='image-preview' />"
						end
						if column.is_link_to_show
							text = "<a href='#{OrbitHelper.url_to_show("-" + te.uid)}'>#{text}</a>"
						end

						cols << {"text" => text}
					else
						cols << {"text" => ""}
					end
				end
				rows << {
					"columns" => cols
				}
			end
		end
		export_button = ""
		if params["column"].present?
			reset = ""
			if !OrbitHelper.current_user.nil?
				p = {}
				params.each do |k,v| 
					p[k] = v if ["q","column","sort","sortcolumn"].include?(k)
				end
				export_button = "<a href='/xhr/universal_table/export.xlsx?cat=#{OrbitHelper.page_categories.first}&page_id=#{page.page_id}&#{p.to_param}'>Export</a>"
			end
			total_entries =  t("universal_table.total_number_of_entries", :total_number => entries.total_count)
		elsif params["sortcolumn"].present?
			reset = ""
		end
		{
			"head-columns" => table_heads,
			"rows" => rows,
			"total_pages" => total_pages,
			"extras" => {
				"total_entries" => total_entries,
				"table-name" => table.title,
				"export_button" => export_button,
				"reset" => reset,
				"url" => "/#{I18n.locale.to_s}#{page.url}"
			}
		}
	end

	def export_filtered
		table = UTable.where(:category_id => params[:cat]).first rescue nil
		page = Page.where(:page_id => params[:page_id]).first
		if !table.nil?
			@rows = []
			@tablecolumns = table.table_columns.where(:display_in_index => true).asc(:order)
			entries = get_entries(params, table, page, false)
			entries.each do |te|
				cols = []
				sort_value = ""
				@tablecolumns.each do |column|
					ce = te.column_entries.where(:table_column_id => column.id).first rescue nil
					if !ce.nil?
						text = ""
						case ce.type
						when "text"
							text = ce.text
						when "editor"
							text = ce.content
						when "date"
							text = format_date(ce.date, column.date_format)
						when "period"
							text = format_date(ce.period_from, column.date_format) + " ~ " + format_date(ce.period_to, column.date_format)
							text = "" if text.starts_with?(" ~")
						when "image"
							text = "http://#{request.host_with_port}" + ce.image.thumb.url
						end
						cols << {"text" => text}
					else
						cols << {"text" => ""}
					end
				end
				@rows << {
					"columns" => cols
				}
			end
			excel_name = table.title + ".xlsx"
			excel_name = 'attachment; filename="' + excel_name + '"'
			
		end
		respond_to do |format|
	      format.xlsx {
	        response.headers['Content-Disposition'] = excel_name
	      }
	    end
	end

	def get_entries(params, table, page, paginated=true)
		entries = []
		if params["column"].present?
				keywords = params["q"]
				keywords = keywords.strip.nil? ? keywords : keywords.strip
    			regexes = keywords.split(/\s+(?=(?:[^"]*"[^"]*")*[^"]*$)/)
    			regex = Regexp.union(regexes.map{|word| Regexp.new(".*"+word+".*", "i")})

				column = table.table_columns.where(:key => params["column"]).first
				if params["sort"].present?
					column_to_sort = table.table_columns.where(:key => params["sortcolumn"]).first
					case column_to_sort.type
					when "text"
						field_name = :text
					when "editor"
						field_name = :content
					when "date"
						field_name = :date
					end
					if params["column"] == params["sortcolumn"]
						columns = column.column_entries.any_of(:"text.en" => regex).or(:"text.zh_tw" => regex).or(:"content.en" => regex).or(:"content.zh_tw" => regex).order_by(field_name => params["sort"])
					else
						temp = column.column_entries.any_of(:"text.en" => regex).or(:"text.zh_tw" => regex).or(:"content.en" => regex).or(:"content.zh_tw" => regex)
						columns = []
						temp.each do |c|
							columns << c.table_entry.column_entries.where(:table_column_id => column_to_sort.id).first
						end 
						sorted_columns = column_to_sort.column_entries.order_by(field_name => params["sort"]).to_a
						columns = sorted_columns & columns
					end
				else
					columns = column.column_entries.any_of(:"text.en" => regex).or(:"text.zh_tw" => regex).or(:"content.en" => regex).or(:"content.zh_tw" => regex)
				end
				columns.each do |column|
					entries << column.table_entry
				end
				entries = entries.sort{|k,v| v["created_at"] <=> k["created_at"]} if !params["sort"].present?
				entries = Kaminari.paginate_array(entries).page(params["page_no"]).per(OrbitHelper.page_data_count) if(paginated)
			else
				if params["sort"].present?
					column_to_sort = table.table_columns.where(:key => params["sortcolumn"]).first
					case column_to_sort.type
					when "text"
						field_name = :text
					when "editor"
						field_name = :content
					when "date"
						field_name = :date
					end
					columns = column_to_sort.column_entries.order_by(field_name => params["sort"])
					columns.each do |column|
						entries << column.table_entry
					end

					entries = Kaminari.paginate_array(entries).page(params["page_no"]).per(OrbitHelper.page_data_count) if(paginated)
				else
					entries = table.table_entries.desc(:created_at).page(params["page_no"]).per(OrbitHelper.page_data_count) if(paginated)
				end
			end
			entries
	end

	def show
		params = OrbitHelper.params
		entry = TableEntry.where(:uid => params[:uid]).first rescue nil
		rows = []

		entry.column_entries.each do |ce|
			ct = ce.table_column
			text = ""
			case ce.type
			when "text"
				text = ce.text
			when "editor"
				text = ce.content
			when "date"
				text = format_date(ce.date, ce.table_column.date_format)
			when "period"
				text = format_date(ce.period_from, ce.table_column.date_format) + " ~ " + format_date(ce.period_from, ce.table_column.date_format)
				text = "" if text.starts_with?(" ~")
			when "image"
				text = "<img src='#{ce.image.thumb.url}' class='image-preview' />"
			end

			rows << {
				"title" => ct.title,
				"text" => text,
				"order" => ct.order
			} if text != ""
		end
    	sorted = rows.sort{ |k,v| k["order"] <=> v["order"] }
    	{
    		"entry" => sorted
    	}
	end
end