Implement missing & remaining pieces propagation + cleaner forms

app/controllers/contests_controller.rb

@@ -131,7 +131,7 @@ class ContestsController < ApplicationController
       not_found and return
     end
 
-    if @offline.images.length > 1
+    if @offline.submitted
       render :offline_already_submitted and return
     end
   end
@@ -144,11 +144,15 @@ class ContestsController < ApplicationController
       not_found and return
     end
 
-    @offline.completed = true
+    @offline.submitted = true
+    @offline.completed = params[:offline][:completed]
     @offline.end_time = Time.now()
     @offline.images.attach(params[:offline][:end_image])
-    @offline.missing_pieces = params[:offline][:missing_pieces]
-    @offline.remaining_pieces = params[:offline][:remaining_pieces]
+    if @offline.completed
+      @offline.missing_pieces = params[:offline][:missing_pieces]
+    else
+      @offline.remaining_pieces = params[:offline][:remaining_pieces]
+    end
     if @offline.save
       if @contest.puzzles.length > 0
         dp = display_time(@offline.end_time.to_i - @offline.start_time.to_i)
@@ -156,7 +160,10 @@ class ContestsController < ApplicationController
         Completion.create(contest: @contest,
                           contestant: contestant,
                           puzzle: @contest.puzzles[0],
-                          display_time_from_start: dp)
+                          completed: @offline.completed,
+                          display_time_from_start: dp,
+                          missing_pieces: @offline.missing_pieces,
+                          remaining_pieces: @offline.remaining_pieces)
         extend_completions!(contestant)
       end
       redirect_to "/public/#{@contest.friendly_id}/offline/#{@offline.generate_token_for(:token)}/completed"