From 8ee6f9d77d9d1cf28b8e436873c84aecc8205569 Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Thu, 27 Sep 2018 21:19:25 +0200
Subject: Round timascale up to complete timescale_division units.

---
 room-schedule.rb | 51 +++++++++++++++++++++++++++++----------------------
 1 file changed, 29 insertions(+), 22 deletions(-)

diff --git a/room-schedule.rb b/room-schedule.rb
index 910a742..84864cc 100644
--- a/room-schedule.rb
+++ b/room-schedule.rb
@@ -169,12 +169,37 @@ EOL
       end
 
       private
+
+      def timescale_unit
+        if timescale_divisions
+          timescale_divisions =~ /(\d+) ?(days|weeks|hours|minutes|seconds)?/
+          division_units = $2 ? $2 : "days"
+          amount = $1.to_i
+          unit =  nil
+          case division_units
+            when "weeks"
+              unit = 7
+            when "days"
+              unit = 1
+            when "hours"
+              unit = (1.0 / 24)
+            when "minutes"
+              unit = (1.0 / 1440)
+            when "seconds"
+              unit = (1.0 / 86400)
+          end
+        end
+        [ amount, unit ]
+      end
+
       def x_range
         max_value = @data.map {|room| room[:data].map {|e| e.end_time}.max}.max
         min_value = @data.map {|room| room[:data].map {|e| e.start_time}.min}.min
 
+        amount, unit = timescale_unit
+        max_value += unit * (amount - (max_value.min % amount))
         range = max_value - min_value
-        right_pad = range == 0 ? 10 : range / 20.0
+        right_pad = 0 #range == 0 ? 10 : range / 20.0
         scale_range = (max_value + right_pad) - min_value
 
         scale_division = scale_x_divisions || (scale_range / 10.0)
@@ -190,27 +215,9 @@ EOL
         rv = []
         min, max, scale_division = x_range
         if timescale_divisions
-          timescale_divisions =~ /(\d+) ?(days|weeks|hours|minutes|seconds)?/
-          division_units = $2 ? $2 : "days"
-          amount = $1.to_i
-          if amount
-            step =  nil
-            case division_units
-            when "weeks"
-              step = 7 * amount
-            when "days"
-              step = amount
-            when "hours"
-              step = (1.0 / 24) * amount
-            when "minutes"
-              step = (1.0 / 1440) * amount
-            when "seconds"
-              step = (1.0 / 86400) * amount
-            end
-            min.step( max, step ) {|v| rv << v} if step
-
-            return rv
-          end
+          amount, unit = timescale_unit
+          min.step( max, amount * unit) {|v| rv << v} if amount
+          return rv
         end
         min.step(max, scale_division) {|v| rv << v}
         return rv
-- 
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