From bf35b55e036982fc26f2e092c05bd83dc7051192 Mon Sep 17 00:00:00 2001
From: Martijn van der Pol <thefes+git@gmail.com>
Date: Thu, 20 Apr 2023 13:01:34 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=A4=96=20Failsafe=20for=20insufficient=20?=
 =?UTF-8?q?values?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 cheapest_energy_hours.jinja | 44 ++++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/cheapest_energy_hours.jinja b/cheapest_energy_hours.jinja
index dfa0bdf..efe9697 100644
--- a/cheapest_energy_hours.jinja
+++ b/cheapest_energy_hours.jinja
@@ -35,29 +35,29 @@
                                             | list
                     %}
                 {# Check if there is data, and find the right hour block #}
-                    {%- if values %}
-                    {%- set ns = namespace(average=none, start=none, min=none, max=none, weighted_average=none) %}
-                    {%- for i in values[:values|length-(h-1)] %}
-                        {%- set ix = loop.index0 %}
-                        {%- set list = values[ix:ix+h] | map(attribute=vk) | list  %}
-                        {%- set a = (list | sum  + list[th-1] * (hw-1)) / (h + (hw -1)) %}
-                        {%- set b = ns.weighted_average %}
-                        {%- set min = list | min  %}
-                        {%- set max = list | max  %}
-                        {%- if ns.average is none or ((a < b) if l else (a > b)) %}
-                            {%- set ns.list = list %}
-                            {%- set ns.min = min %}
-                            {%- set ns.max = max %}
-                            {%- set ns.weighted_average = a %}
-                            {%- set ns.average = list | average %}
-                            {%- set ns.start = as_datetime(i[tk]) if str else i[tk] %}
-                            {%- set ns.end = ns.start + timedelta(hours=h+1) %}
-                        {%- endif %}
-                    {%- endfor %}
-                    {# output date based on the selected mode#}
-                        {{ ns[m] | round(5) if ns[m] | is_number else ns[m] }}
+                    {%- if values | count >= h %}
+                        {%- set ns = namespace(average=none, start=none, min=none, max=none, weighted_average=none) %}
+                        {%- for i in values[:values|length-(h-1)] %}
+                            {%- set ix = loop.index0 %}
+                            {%- set list = values[ix:ix+h] | map(attribute=vk) | list  %}
+                            {%- set a = (list | sum  + list[th-1] * (hw-1)) / (h + (hw -1)) %}
+                            {%- set b = ns.weighted_average %}
+                            {%- set min = list | min  %}
+                            {%- set max = list | max  %}
+                            {%- if ns.average is none or ((a < b) if l else (a > b)) %}
+                                {%- set ns.list = list %}
+                                {%- set ns.min = min %}
+                                {%- set ns.max = max %}
+                                {%- set ns.weighted_average = a %}
+                                {%- set ns.average = list | average %}
+                                {%- set ns.start = as_datetime(i[tk]) if str else i[tk] %}
+                                {%- set ns.end = ns.start + timedelta(hours=h+1) %}
+                            {%- endif %}
+                        {%- endfor %}
+                        {# output date based on the selected mode#}
+                            {{ ns[m] | round(5) if ns[m] | is_number else ns[m] }}
                     {%- else %}
-                        No data within current selection
+                        No{{ 't enough' if values }} data within current selection
                     {%- endif %}
         {% endif %}
 {%- endmacro %}
\ No newline at end of file