WIP rake task to convert resource pdf's stored in 'url' field into real image uploads

Author: maebeale

lib/tasks/convert_resource_pdfs.rake

@@ -0,0 +1,71 @@
+# lib/tasks/migrate_resource_pdfs.rake
+require "open-uri"
+
+namespace :resources do
+	desc "Migrate legacy PDF URLs to main or gallery images"
+	task migrate_pdfs: :environment do
+		dry_run = ENV["DRY_RUN"] == "true"
+
+		scope = Resource.where.not(url: [nil, ""])
+										.where.not(kind: ["Story", "LeaderSpotlight",
+																			"SectorImpact", "Scholarship", "Theme"])
+
+		puts "Found #{scope.count} resources with legacy PDF URLs"
+		puts "DRY RUN: #{dry_run ? 'ON' : 'OFF'}"
+		puts "-" * 70
+
+		scope.find_each(batch_size: 25) do |resource|
+			puts "→ Resource ##{resource.id} — #{resource.title}"
+
+			begin
+				uri = URI.parse(resource.url)
+				filename = File.basename(uri.path.presence || "resource-#{resource.id}.pdf")
+
+				image_class = resource.main_image.blank? ? Images::MainImage : Images::GalleryImage
+
+				puts "  Resource type: #{resource.kind}"
+				puts "  Target image type: #{image_class.name}"
+				puts "  Source URL: #{resource.url}"
+				puts "  Filename: #{filename}"
+				puts "  ++++++++++"
+
+				if dry_run
+					puts "  DRY RUN — no changes made"
+					puts "-" * 70
+					next
+				end
+
+				file = uri.open(
+					read_timeout: 30,
+					ssl_verify_mode: OpenSSL::SSL::VERIFY_PEER
+				)
+
+				unless file.content_type == "application/pdf"
+					raise "Expected PDF, got #{file.content_type}"
+				end
+
+				uploaded_file = ActionDispatch::Http::UploadedFile.new(
+					tempfile: file,
+					filename: filename,
+					type: "application/pdf"
+				)
+
+				image = image_class.create!(
+					owner: resource,
+					file: uploaded_file
+				)
+
+				puts "  ✔ Attached as #{image.class.name}"
+
+			rescue => e
+				puts "  ✖ ERROR: #{e.class}"
+				puts "    #{e.message}"
+				puts "    Resource left unchanged"
+			end
+
+			puts "-" * 70
+		end
+
+		puts "Migration complete."
+	end
+end