#!/bin/bash

GITHUB_URL="https://github.com/Lanchon/haystack.git"
PATCH_CORE="sigspoof-core"
CWD=$(readlink -m "${BASH_SOURCE[0]}")
CWD=$(dirname "${CWD}")

error () {
	echo -e "${@}"
	exit 1
}

help () {

echo -e "haystack framework patcher helper

provide Android Version like:
	framework-patcher.sh [version] [--gui]

there version is one of:
	4.1	[JB]
	4.2	[JB]
	4.3	[JB]
	4.4	[KK]
	5.0	[LL]
	5.1	[LL]
	6.0	[MM]
	7.0	[N]
	7.1	[N]
	8.0	[O]
	8.1	[O]

your device must be in TWRP and connected to PC."

exit 0

}

case "${1}" in
	4.1 )	API=16	;;
	4.2 )	API=17	;;
	4.3 )	API=18	;;
	4.4 )	API=19	;;
	5.0 )	API=21	;;
	5.1 )	API=22	;;
	6.0 )	API=23	;;
	7.0 )	API=24	;;
	7.1 )	API=25	;;
	8.0 )	API=26	;;
	8.1 )	API=27	;;
	*   )	help	;;
esac

if [[ ${API} -lt 24 ]]; then
	PATCH_HOOK="sigspoof-hook-4.1-6.0"
	PATCH_UI="sigspoof-ui-global-4.1-6.0"
else
	PATCH_HOOK="sigspoof-hook-7.0-7.1"
	PATCH_UI="sigspoof-ui-global-7.0-7.1"
fi

adb shell "[[ -d /twres ]] && exit 0" || error "Device is not in TWRP!"

if [[ -d ${CWD}/haystack/.git ]]; then
	cd "${CWD}/haystack"
	rm -rf mydevice*
	git pull
else
	rm -rf "${CWD}/haystack"
	git clone "${GITHUB_URL}" || error "Failed to down haystack!"
	cd "${CWD}/haystack"
fi

if [[ "$OSTYPE" == "darwin"* ]]; then
	if ! [ -x "$(command -v brew)" ]; then
		/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
	fi
	if ! [ -x "$(command -v greadlink)" ]; then
		brew install coreutils
	fi
	alias readlink=greadlink
	alias cp=gcp
fi

adb shell "umount /system"
adb shell "mount -orw /system" || error "Failed to mount /system read-write"

rm -rf "${CWD}/haystack/mydevice*"
"${CWD}/haystack/pull-fileset" mydevice || error "Failed to pull files from device!"

"${CWD}/haystack/patch-fileset" "${CWD}/haystack/patches/${PATCH_HOOK}" \
	"${API}" "${CWD}/haystack/mydevice" || \
	error "Failed applying sigspoof hook patch!"

"${CWD}/haystack/patch-fileset" "${CWD}/haystack/patches/${PATCH_CORE}" "${API}" \
	"${CWD}/haystack/mydevice__${PATCH_HOOK}" \
	|| error "Failed applying sigspoof core patch!"


adb push "${CWD}/haystack/mydevice__${PATCH_HOOK}__${PATCH_CORE}/services.jar" \
	/tmp/services.jar || error "Failed to push services.jar to device"

adb push "${CWD}/framework-patcher-remote" /tmp/ || \
	error "Failed to push helper script to device"

adb shell "chmod 0755 /tmp/framework-patcher-remote" || \
	error "Failed to set permissions for helper script"

adb shell "/tmp/framework-patcher-remote" || \
	error "Failed to install services.jar"

echo -e "\nNow reboot device and enjoy microG!"

cd "${CWD}"