#!/bin/bash

# read user input
speed=0.0
animator=1.0
default=0.6
if [ "$1" = "enable" ]; then
	check=`echo "$2" | grep -E ^\-?[0-9]*\.?[0-9]+$`
	if [ "$check" != '' ]; then
		# got a number arg
		speed=$2
	else
		# no number arg, default to $default
		speed=$default
	fi
elif [ "$1" == "disable" ]; then
	animator=0.0
else
	# unknown command, explain
	echo -e "\n----- Usage -----\n"
	echo -e "~$: device_animations enable"
	echo -e "    - Window animation speed: $default"
	echo -e "    - Transitions animation speed: $default"
	echo -e "    - Animator speed: 1.0\n"
	echo -e "~$: device_animations enable 0.2"
	echo -e "    - Window animation speed: 0.2"
	echo -e "    - Transitions animation speed: 0.2"
	echo -e "    - Animator speed: 1.0\n"
	echo -e "~$: device_animations disable"
	echo -e "    - Window animation speed: 0.0"
	echo -e "    - Transitions animation speed: 0.0"
	echo -e "    - Animator speed: 0.0\n"
	exit
fi

# read old values
echo -e "\n----- Before change -----\n"
echo -e "Window animation speed: '`adb shell settings get global window_animation_scale`'"
echo -e "Transitions animation speed: '`adb shell settings get global transition_animation_scale`'"
echo -e "Animator speed: '`adb shell settings get global animator_duration_scale`'"

# change values
echo -e "\n----- Changing to '$speed' -----\n"
adb shell settings put global window_animation_scale $speed
adb shell settings put global transition_animation_scale $speed
adb shell settings put global animator_duration_scale $animator
echo -e "Done."

# read new values
echo -e "\n----- After change -----\n"
echo -e "Window animation speed: '`adb shell settings get global window_animation_scale`'"
echo -e "Transitions animation speed: '`adb shell settings get global transition_animation_scale`'"
echo -e "Animator speed: '`adb shell settings get global animator_duration_scale`'\n"