#!/bin/bash

set -xeu

DEBIAN_FRONTEND=noninteractive
TARGET="$PWD"

export DEBIAN_FRONTEND

dependencies() {
	# Update system and install basic tools
	apt-get update -yq && apt-get install -yq aptitude curl git wget
	# Install dependencies for Vaultwarden
	aptitude --quiet --assume-yes install pkg-config libssl-dev build-essential libsqlite3-dev
}

install_rust() {
	curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-host x86_64-unknown-linux-gnu --default-toolchain nightly
	. ~/.cargo/env
}

get_vault_sources() {
	# Clone Vaultwarden repo
	cd "$(mktemp -d)"
	git clone https://github.com/dani-garcia/vaultwarden
	cd vaultwarden
}

build_vault() {
	# Build
	cargo build --release --features sqlite

	# Move to previous directory
	cd -
}

get_webgui_sources() {
	# Get Dani Garcia GPG key
	gpg --keyserver keyserver.ubuntu.com --recv-keys B9B7A108373276BF3C0406F9FC8A7D14C3CD543A

	# Clone Vault web builds repo
	git clone https://github.com/dani-garcia/bw_web_builds
	cd bw_web_builds

	# Get the last version of builded web gui
	web_vault_version=$(git tag --sort=v:refname | tail -n1)
	wget "https://github.com/dani-garcia/bw_web_builds/releases/download/${web_vault_version}/bw_web_${web_vault_version}.tar.gz" -O ../bw_web_latest.tar.gz
	web_vault_version=$(git tag --sort=v:refname | tail -n1)
	wget "https://github.com/dani-garcia/bw_web_builds/releases/download/${web_vault_version}/bw_web_${web_vault_version}.tar.gz.asc" -O ../bw_web_latest.tar.gz.asc

	# Move to previous directory
	cd -
}

merge() {
	# Verify the signature
	gpg --verify bw_web_latest.tar.gz.asc bw_web_latest.tar.gz || exit 2

	# Extract the builded web gui
	tar xf bw_web_latest.tar.gz

	# Move the web gui to Vaultwarden
	mv web-vault vaultwarden/target/release/web-vault

	# Produce an archive of this Vaultwarden release
	cd vaultwarden/target
	vaultwarden_version=$(git tag --sort=v:refname | tail -n1)
	tar czf "/vaultwarden_${vaultwarden_version}.tar.gz" release

	# Move to previous directory
	cd -
}

copy() {
	TARGET_UID="$(stat --printf %u "$TARGET")"
	TARGET_GID="$(stat --printf %g "$TARGET")"
	install -o "$TARGET_UID" -g "$TARGET_GID" -t "$TARGET/target" /*.tar.gz
}

main() {
	dependencies
	install_rust
	get_vault_sources
	build_vault
	get_webgui_sources
	merge
	copy
}

main