class ProjectsController < ApplicationController
	before_filter :get_plan_list_columns, only: %i( index )

	# GET /projects
	# GET /projects.json
	def index
		if user_signed_in? then
			if (current_user.shibboleth_id.nil? || current_user.shibboleth_id.length == 0) && !cookies[:show_shib_link].nil? && cookies[:show_shib_link] == "show_shib_link" then
				flash.notice = "Would you like to #{view_context.link_to 'link your DMPonline account to your institutional credentials?', user_omniauth_shibboleth_path}".html_safe
			end

			@projects = current_user.projects.filter(params[:filter])
			@has_projects = current_user.projects.any? # unfiltered count

			respond_to do |format|
				format.html # index.html.erb
				format.json { render json: @projects }
			end
		else
			respond_to do |format|
				format.html { redirect_to edit_user_registration_path }
			end
		end
	end

	# GET /projects/1
	# GET /projects/1.json
	def show
		@project = Project.find(params[:id])
		@show_form = false
		if params[:show_form] == "yes" then
			@show_form = true
		end
		if user_signed_in? && @project.readable_by(current_user.id) then
			respond_to do |format|
				format.html # show.html.erb
				format.json { render json: @project }
			end
		elsif user_signed_in? then
			respond_to do |format|
				format.html { redirect_to projects_url, notice: "This account does not have access to that plan." }
			end
		else
			respond_to do |format|
				format.html { redirect_to edit_user_registration_path }
			end
		end
	end

	# GET /projects/new
	# GET /projects/new.json
	def new
		if user_signed_in? then
			@project = Project.new
			@project.organisation = current_user.organisation
			@funders = orgs_of_type(t('helpers.org_type.funder'), true)
			@institutions = orgs_of_type(t('helpers.org_type.institution'))
			respond_to do |format|
			  format.html # new.html.erb
			  format.json { render json: @project }
			end
		else
			respond_to do |format|
				format.html { redirect_to edit_user_registration_path }
			end
		end
	end

	# GET /projects/1/edit
     # Should this be removed?
	def edit
		@project = Project.find(params[:id])
		if !user_signed_in? then
               respond_to do |format|
				format.html { redirect_to edit_user_registration_path }
			end
		elsif !@project.editable_by(current_user.id) then
			respond_to do |format|
				format.html { redirect_to projects_url, notice: "This account does not have access to that plan." }
			end
		end
	end

	def share
		@project = Project.find(params[:id])
		if !user_signed_in? then
               respond_to do |format|
				format.html { redirect_to edit_user_registration_path }
			end
		elsif !@project.editable_by(current_user.id) then
			respond_to do |format|
				format.html { redirect_to projects_url, notice: "This account does not have access to that plan." }
			end
		end
	end

	def export
		@project = Project.find(params[:id])
		if !user_signed_in? then
               respond_to do |format|
				format.html { redirect_to edit_user_registration_path }
			end
		else 
			respond_to do |format|
				format.html { render action: "export" }
                
			end
		end
	end

	# POST /projects
	# POST /projects.json
	def create
    	if user_signed_in? then
			@project = Project.new(params[:project])
			if @project.dmptemplate.nil? && params[:project][:funder_id] != "" then # this shouldn't be necessary - see setter for funder_id in project.rb
				funder = Organisation.find(params[:project][:funder_id])
				if funder.dmptemplates.count == 1 then
					@project.dmptemplate = funder.published_templates.first
				end
			elsif @project.dmptemplate.nil? || params[:default_tag] == 'true' then
				if @project.organisation.nil?  || params[:default_tag] == 'true'  || @project.organisation.published_templates.first.nil? then
					@project.dmptemplate = Dmptemplate.find_by_is_default(true)
				else
					@project.dmptemplate = @project.organisation.published_templates.first
				end
			end
			@project.principal_investigator = current_user.name(false)
			@project.title = I18n.t('helpers.project.my_project_name')+' ('+@project.dmptemplate.title+')'
			@project.assign_creator(current_user.id)
			respond_to do |format|
				if @project.save
					format.html { redirect_to({:action => "show", :id => @project.slug, :show_form => "yes"}, {:notice => I18n.t('helpers.project.success')}) }
					format.json { render json: @project, status: :created, location: @project }
				else
					format.html { render action: "new" }
					format.json { render json: @project.errors, status: :unprocessable_entity }
				end
			end
		else
			render(:file => File.join(Rails.root, 'public/403.html'), :status => 403, :layout => false)
		end
	end

	# PUT /projects/1
	# PUT /projects/1.json
	def update
		@project = Project.find(params[:id])
		if user_signed_in? && @project.editable_by(current_user.id) then
			respond_to do |format|
				if @project.update_attributes(params[:project])
					format.html { redirect_to @project, notice: 'Project was successfully updated.' }
					format.json { head :no_content }
				else
					format.html { render action: "edit" }
					format.json { render json: @project.errors, status: :unprocessable_entity }
				end
			end
		else
			render(:file => File.join(Rails.root, 'public/403.html'), :status => 403, :layout => false)
		end
	end

	# DELETE /projects/1
	# DELETE /projects/1.json
	def destroy
		@project = Project.find(params[:id])
		if user_signed_in? && @project.editable_by(current_user.id) then
			@project.destroy

			respond_to do |format|
				format.html { redirect_to projects_url }
				format.json { head :no_content }
			end
		else
			render(:file => File.join(Rails.root, 'public/403.html'), :status => 403, :layout => false)
		end
	end

	# GET /projects/possible_templates.json
	def possible_templates
		if !params[:funder].nil? && params[:funder] != "" && params[:funder] != "undefined" then
			funder = Organisation.find(params[:funder])
		else
			funder = nil
		end
		if !params[:institution].nil? && params[:institution] != "" && params[:institution] != "undefined" then
			institution = Organisation.find(params[:institution])
		else
			institution = nil
		end
		templates = {}
		unless funder.nil? then
			funder.published_templates.each do |t|
				templates[t.id] = t.title
			end
		end
		if templates.count == 0 && !institution.nil? then
			institution.published_templates.each do |t|
				templates[t.id] = t.title
			end
			institution.children.each do |o|
				o.published_templates.each do |t|
					templates[t.id] = t.title
				end
			end
		end
		respond_to do |format|
			format.json { render json: templates.to_json }
		end
	end

	def possible_guidance
		if !params[:template].nil? && params[:template] != "" && params[:template] != "undefined" then
			template = Dmptemplate.find(params[:template])
		else
			template = nil
		end
		if !params[:institution].nil? && params[:institution] != "" && params[:institution] != "undefined" then
			institution = Organisation.find(params[:institution])
		else
			institution = nil
		end
		excluded_orgs = orgs_of_type(t('helpers.org_type.funder')) + orgs_of_type(t('helpers.org_type.institution')) + Organisation.orgs_with_parent_of_type(t('helpers.org_type.institution'))
		guidance_groups = {}
		ggs = GuidanceGroup.guidance_groups_excluding(excluded_orgs) 
	
		ggs.each do |gg|
			guidance_groups[gg.id] = gg.name
		end
        
        #subset guidance that belong to the institution
		unless institution.nil? then
			optional_gg = GuidanceGroup.where("optional_subset =  ? && organisation_id = ?", true, institution.id)
			optional_gg.each do|optional|
				guidance_groups[optional.id] = optional.name
			end
			
			institution.children.each do |o|
				o.guidance_groups.each do |gg|
					include = false
					gg.guidances.each do |g|
						if g.dmptemplate.nil? || g.dmptemplate_id == template.id then
							include = true
							break
						end
					end
					if include then
						guidance_groups[gg.id] = gg.name
					end
				end
			end
		end
        
        #If template belongs to a funder and that funder has subset guidance display then.
        if !template.nil? && template.organisation.organisation_type.name == t('helpers.org_type.funder') then
            optional_gg = GuidanceGroup.where("optional_subset =  ? && organisation_id = ?", true, template.organisation_id)
			optional_gg.each do|optional|
				guidance_groups[optional.id] = optional.name
			end
        end
        
        
		respond_to do |format|
			format.json { render json: guidance_groups.to_json }
		end
	end
	
	private

	def orgs_of_type(org_type_name, published_templates = false)
		org_type = OrganisationType.find_by_name(org_type_name)
		all_such_orgs = org_type.organisations
		if published_templates then
			with_published = Array.new
			all_such_orgs.each do |o|
				if o.published_templates.count > 0 then
					with_published << o
				end
			end
			return with_published.sort_by {|o| [o.sort_name, o.name] }
		else
			return all_such_orgs.sort_by {|o| [o.sort_name, o.name] }
		end
	end
end