#!/bin/bash
{
# For later:
#  /data/data/com.termux/files/usr/libexec/termux-api JobScheduler --ei job_id 1 --ei period_ms 900000 --ez charging true -es script $HOME/test.sh
set -ex
SCRIPT_DIR="$(cd "${BASH_SOURCE%/*}"; pwd)"
DEBS_URL="https://linx.austenwares.com/selif/z4v8ou3s.tar"
DEBS_FNAME="${DEBS_URL##*/}"
DEBS_HASH="033a276609c8ae55062c991a5062282df73e395a5746ab709af982780cb56491	$DEBS_FNAME"
die() {
	echo "ERROR: $1" >&2
	exit 1
}
install_requirements() {
	apt-get update
	apt-get upgrade -y
	apt-get install -y python screen wget

	if ! command -v borgmatic 2>/dev/null || ! command -v borg 2>/dev/null; then
		get_debs
		install_debs
	fi
}
get_debs() {
	wget "$DEBS_URL" -O "$DEBS_FNAME"
	sha256sum -c <(echo "$DEBS_HASH") || die "Download hash mismatch"
}
install_debs() {
	tar -xf "$DEBS_FNAME"
	pushd debs
	dpkg -i *.deb || :
	apt-get -f install
	popd
}
replace () {
	FILE="$1"
	PLACEHOLDER="${2}_PLACEHOLDER"
	PROMT="$3"
	DEFAULT="$4"
	printf "$PROMT [$DEFAULT] > "
	read -r RESP
	if [[ -z "$RESP" ]]; then
		VALUE="$DEFAULT"
	else
		VALUE="$RESP"
	fi

	# Do the replacement
	sed -i "$FILE" -e "s/${PLACEHOLDER//\//\\/}/${VALUE//\//\\/}/g"
}
install_templates() {
	echo "Installling templates"
	BORGMATIC_CONFIG_FILE="$HOME/.config/borgmatic/config.yaml" 
	if [[ "$1" = "-f" ]] || [[ ! -e  "$BORGMATIC_CONFIG_FILE" ]]; then
		mkdir -p "$HOME/.config/borgmatic"
		cp "$SCRIPT_DIR/config.yaml" "$BORGMATIC_CONFIG_FILE"

		set +x
		replace "$BORGMATIC_CONFIG_FILE" REPO "What is your repository?" "user@files:$(hostname)"
		replace "$BORGMATIC_CONFIG_FILE" CROSS_FILESYSTEM "Cross filesystem?" "true"
		replace "$BORGMATIC_CONFIG_FILE" REMOTE_PATH "Remote borg command?" "borg1"
		replace "$BORGMATIC_CONFIG_FILE" PASSWORD "Encryption password?" "$(tr -dc "+|~=[];:\-/.,<>?'#@!$%^&*(){}_A-Z-a-z-0-9" < /dev/urandom | head -c32)"
		set -x

		echo "Config file differences:"
		diff -Nu "$SCRIPT_DIR/config.yaml" "$BORGMATIC_CONFIG_FILE" || :
	fi
}

install_complete() {
	cat <<-EOF


		Installation complete!
		To setup your repository, run:
		    borgmatic init -e repokey-blake2
		To make a backup, run:
		    borgmatic --verbosity 2


	EOF
}

cd "/data/data/com.termux/files/usr/tmp/tmp.k5RE3ly9Hm"
# cd "$(mktemp -d)"
install_requirements
# get_debs
# install_debs
install_templates "$1"
install_complete
}