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i3/scripts/pa-volume

@@ -0,0 +1,116 @@
+#!/bin/bash
+
+# name of the sink. execute pactl list sinks to get a list
+SINKNAME="alsa_output.pci-0000_00_1b.0.analog-stereo"
+
+# this is the worst
+SINK=$(( $(pactl list sinks | grep "Name: " | grep -n "${SINKNAME}"$ | grep -o "^[[:digit:]]*") -1))
+
+getvol() {
+    echo $(pactl list sinks | grep "^[[:space:]]*Volume" | head -n $(( $SINK + 1 )) | tail -n 1 | grep -o "[[:digit:]]*%" | head -n 1 | cut -d "%" -f 1)
+}
+
+setvol() {
+    if [[ $1 =~ [+-][0-9]+ ]] ; then
+        oldvol="$(getvol)"
+        echo "oldvol $oldvol"
+        delta="$(echo "$1" | cut -c 2-)"
+        echo "delta $delta"
+        if [[ "$(echo "$1" | cut -c 1)" == "+" ]] ; then
+            echo "+"
+            newvol=$(( $oldvol + $delta ))
+        else
+            echo "-"
+            newvol=$(( $oldvol - $delta ))
+            echo $newvol
+        fi
+        if [[ $newvol -gt 100 ]]; then
+            echo "capping at 100 percent"
+            newvol=100
+        fi
+        if [[ $newvol -lt 0 ]]; then
+            echo "capping at 0 percent"
+            newvol=0
+        fi
+        echo "newvol $newvol"
+    else
+        newvol="$1"
+    fi
+    pactl set-sink-volume $SINKNAME $(( $newvol * 65536 / 100 ))
+}
+
+ismuted() {
+    muted=$(pactl list sinks | grep "^[[:space:]]*Mute" | head -n $(( $SINK + 1 )) | tail -n 1 | cut -d " " -f 2)
+    if [[ $muted == "no" ]]; then
+        echo 0
+    else
+        echo 1
+    fi
+}
+
+mute() {
+    pactl set-sink-mute $SINK 1
+}
+
+unmute() {
+    pactl set-sink-mute $SINK 0
+}
+
+mute-toggle() {
+    pactl set-sink-mute $SINK toggle
+}
+
+status() {
+    if [[ $(ismuted) == "1" ]] ; then
+        echo "mute"
+        return
+    fi
+    echo "$(getvol)%"
+}
+
+usage() {
+    echo "Usage:"
+    echo
+    echo "$0 get-vol"
+    echo "$0 set-vol VOL_PERC"
+}
+
+case "$1" in
+    "get-vol")
+        echo $(getvol)
+        ;;
+    "set-vol")
+        if [[ -z "$2" ]] ; then
+            usage
+        else
+            setvol "$2"
+        fi
+        hook="$3"
+        ;;
+    "mute")
+        mute
+        hook="$2"
+        ;;
+    "unmute")
+        unmute
+        hook="$2"
+        ;;
+    "mute-toggle")
+        mute-toggle
+        hook="$2"
+        ;;
+    "is-muted")
+        echo $(ismuted)
+        ;;
+    "status")
+        echo $(status)
+        ;;
+    *)
+        usage
+        ;;
+esac
+
+if [[ -n "$hook" ]] ; then
+    echo "volume changed, executing hook: $hook"
+    $hook
+fi