Add btc price tracker panel module

.config/polybar/config

@@ -53,7 +53,7 @@ font-4 = "Font Awesome 5 Brands:pixelsize=16;3"
 
 modules-left = bspwm
 modules-center = title
-modules-right = pulseaudio backlight-acpi wlan eth battery battery-low date powermenu
+modules-right = btc pulseaudio backlight-acpi wlan eth battery battery-low date powermenu
 
 tray-maxsize = 30
 tray-position = right

.config/polybar/modules

@@ -28,6 +28,15 @@ type = internal/xwindow
 label = %title:0:50:...%
 label-foreground = ${colors.white-bright}
 
+[module/btc]
+type = custom/script
+interval = 300
+
+exec = $HOME/.scripts/panel/btc.sh
+
+label =  %output%
+label-foreground = ${colors.white-bright}
+
 ; https://github.com/polybar/polybar/wiki/Module:-pulseaudio
 [module/pulseaudio]
 type = internal/pulseaudio

.config/zsh/.zshrc

@@ -156,6 +156,7 @@ alias vp="$HOME/.scripts/vimplugin.sh"
 alias mpvshuffle="$HOME/.scripts/mpv.sh shuffle"
 
 # Other
+alias crypto="curl 'https://rate.sx/?qF'"
 alias IP="curl https://ifconfig.me"
 alias len="xclip -o | wc -m"
 alias length="rofi -dmenu -i -p 'String length' -lines 0 | tr -d '\n' | wc -m"

.scripts/panel/btc.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+
+# Enable mathematics in POSIX shell
+calc() { awk "BEGIN { printf(\"%.2f\", $*) }"; }
+
+output() {
+	[ -z "$1" ] || [ -z "$2" ] && return 1
+
+	url="$1"
+	price="$2"
+
+	price_old="$(curl -s $url | jq -cr '.data.amount')"
+	difference=$(calc "$price / $price_old * 100 - 100")
+
+	# Get symbol and color
+	old_higher=$(calc "$price < $price_old" | cut -c 1)
+	if [ $old_higher -eq 0 ]; then
+		symbol=""
+		color="$COLOR2"
+	else
+		symbol=""
+		color="$COLOR1"
+	fi
+
+	# Result
+	echo "%{F$color}$symbol $difference%%{F$COLOR15}"
+}
+
+# Get dates
+date_yesterday="$(date -d 'yesterday' +'%Y-%m-%d')"
+date_last_week="$(date -d 'last week' +'%Y-%m-%d')"
+
+# Get API URLs
+url="https://api.coinbase.com/v2/prices/BTC-USD/spot"
+url_yesterday="${url}?date=$date_yesterday"
+url_last_week="${url}?date=$date_last_week"
+
+# Current price
+price="$(curl -s $url | jq -cr '.data.amount')"
+
+# Create output formatting
+difference_yesterday_output="d $(output $url_yesterday $price)"
+difference_last_week_output="w $(output $url_last_week $price)"
+
+echo "\$$price  $difference_yesterday_output  $difference_last_week_output"