From 1ea3331a3a13c015196d79ae62bfe619c43bed59 Mon Sep 17 00:00:00 2001
From: ADAM David Alan Martin <adam@recursive.engineer>
Date: Thu, 14 Apr 2022 13:54:03 -0400
Subject: [PATCH] Add battery level into prompt.

Has to be turned on by an env variable, and I only tested it on one
laptop so far.
---
 tcshrc.colors       |  1 +
 tcshrc.prompt.defs  |  6 +++---
 tcshrc.prompt.final | 38 +++++++++++++++++++++++++++++++++++++-
 3 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/tcshrc.colors b/tcshrc.colors
index d8b74ff..6aba697 100644
--- a/tcshrc.colors
+++ b/tcshrc.colors
@@ -22,6 +22,7 @@ set ansi_white='37'
 set bright="$csi$ansi_bright$ansi_color"
 set dim="$csi$ansi_dim$ansi_color"
 set reverse="$csi$ansi_reverse$ansi_color"
+set blink="${csi}5${ansi_color}"
 
 
 set black="$csi$ansi_black$ansi_color"
diff --git a/tcshrc.prompt.defs b/tcshrc.prompt.defs
index 734ab0d..2efd9d4 100644
--- a/tcshrc.prompt.defs
+++ b/tcshrc.prompt.defs
@@ -97,12 +97,12 @@ set prompt_simple="${oldp_color_seq}[%n@%m: %c]%# "
 
 # Screens are almost certainly not a million chars wide.
 # If they are... oh well, that's a really weird one.
-set date_prefix="%{${csi}A${csi}1000000G${csi}18D%}"
-set date_suffix="%{${csi}G${csi}1B%}"
+set align_prefix="%{${csi}A${csi}1000000G${csi}18D%}"
+set align_suffix="%{${csi}G${csi}1B%}"
 #set screen_return="%{8%}"
 set date_prompt_core="${date_color_seq}%{%Y-%W-%D %}${time_color_seq}%{%P%}"
 set date_prompt_left="${date_prompt_core}"
-set date_prompt="${date_prefix}${date_prompt_core}${date_suffix}"
+set date_prompt="${date_prompt_core}"
 #unset edit
 
 if( $?CSHENV_DEBUG ) then
diff --git a/tcshrc.prompt.final b/tcshrc.prompt.final
index bf70099..771a1af 100644
--- a/tcshrc.prompt.final
+++ b/tcshrc.prompt.final
@@ -4,6 +4,13 @@
 @ prompt_hcolor = $prompt_hcolor % ${#reference_colors}
 @ prompt_hsym = $prompt_hsym % ${#referencechars}
 
+set critical_battery_level = 10
+set low_battery_level      = 20
+set weak_battery_level     = 33
+set medium_battery_level   = 50
+set strong_battery_level   = 75
+
+
 if( ${prompt_hcolor} == 0 ) then
     #if( $?CSHENV_DEBUG ) then
         #echo colorshuffle
@@ -30,6 +37,7 @@ if( $?CSHENV_DEBUG ) then
     echo "Setting prompt"
 endif
 
+
 set prompt_reference_core="%{${reference_colors[${prompt_hcolor}]}%}${referencechars[${prompt_hsym}]}"
 #if( ${referencechars[${prompt_hsym}]} == `env LC_ALL=C.UTF-8 printf "\u2328"` ) then
 #    set prompt_reference="%{${dim}%}<${prompt_reference_core}  %{${dim}%}> "
@@ -40,7 +48,35 @@ set prompt_reference="%{${dim}%}< ${prompt_reference_core} %{${dim}%}> "
 #set prompt_reference="%{${csi}0;48\;5\;7m%}(${prompt_reference_core}%{${csi}0;48\;5\;7m%})%{${dim}%}"
 #set prompt_reference="${prompt_reference_core}%{${text_color_seq}%} \- "
 
-set prompt_cool="\n${date_prompt}${brace_color_seq}\[${prompt_reference}${line_prompt}${depth_prompt}${user_prompt}${at_color_seq}@${host_prompt}${text_color_seq}\: ${path_prompt}${brace_color_seq}\]${end_prompt}"
+if( $?CSHENV_SHOW_BATTERY_LEVEL ) then
+    set battery_level=`cat /sys/class/power_supply/BAT1/capacity`
+    if( ${battery_level} < ${critical_battery_level} ) then
+        set battery_color=${red}${blink}
+    else if( ${battery_level} < ${low_battery_level} ) then
+        set battery_color=${red}
+    else if( ${battery_level} < ${weak_battery_level} ) then
+        set battery_color=${yellow}
+    else if( ${battery_level} < ${medium_battery_level} ) then
+        set battery_color=${bright_yellow}
+    else if( ${battery_level} < ${strong_battery_level} ) then
+        set battery_color=${green}
+    else
+        set battery_color=${bright_green}
+    endif
+
+    if( ${battery_level} < 10 ) then
+        set battery_level="  ${battery_level}"
+    else if( ${battery_level} < 100 ) then
+        set battery_level=" ${battery_level}"
+    endif
+
+    #set battery_prompt="%{${battery_color}%}%{${battery_level}${at_color}\%%}%{${dim}%} "
+    set battery_prompt="%{${csi}28D${blue}Battery Level: ${battery_color}${battery_level}${at_color}\%${dim}         %}"
+else
+    set battery_prompt=""
+endif
+
+set prompt_cool="%{\n%}${align_prefix}${battery_prompt}${date_prompt}${align_suffix}${brace_color_seq}\[${prompt_reference}${line_prompt}${depth_prompt}${user_prompt}${at_color_seq}@${host_prompt}${text_color_seq}\: ${path_prompt}${brace_color_seq}\]${end_prompt}"
 
 if( ! ${?cshenv_user_prompt_override} ) then
 	set prompt="$prompt_cool"