#!/bin/sh
# Build and upload MinMicroG packages

error() {
  echo " ";
  echo "!!! FATAL: $1";
  exit 1;
}

# Use sudo if available
exec_su() {
  if false; then
    return 1;
  elif command -v "sudo" >/dev/null; then
    sudo "$@";
  else
    "$@";
  fi;
}

# Translate command names to package names
getpkg() {
  case "$1" in
    *)
      echo "$1"
    ;;
  esac;
}

# Find package manager
if false; then
  :;
elif command -v "apt-get" >/dev/null; then
  echo 'debconf debconf/frontend select Noninteractive' | exec_su debconf-set-selections;
  exec_su apt-get update -yy >/dev/null;
  exec_su apt-get upgrade -yy >/dev/null;
  pmcmd() {
    pkg="$(getpkg "$1")";
    exec_su apt-get install -yy "$pkg" >/dev/null;
  }
else
  echo " ";
  echo "!!! ERROR: Could not figure out package manager";
  pmcmd() {
    return 1;
  }
fi;

# Dependency check
for bin in curl git jq unzip zip; do
  command -v "$bin" >/dev/null || pmcmd "$bin";
  command -v "$bin" >/dev/null || error "could not install dependency: $bin";
done;
for bin in aapt java; do
  command -v "$bin" >/dev/null || pmcmd "$bin";
  command -v "$bin" >/dev/null || {
    echo " ";
    echo "!!! ERROR: Could not install optional dependency: $bin !!!";
  }
done;

# Workaround for stupid outdated debian packages
command -v "java" >/dev/null && {
  d="$(mktemp -d)";
  curl -fL "https://dl.google.com/android/repository/build-tools_r33.0.1-linux.zip" -o "$d/build-tools.zip";
  unzip -p "$d/build-tools.zip" "android-13/lib/apksigner.jar" > "$d/apksigner.jar";
  printf '#!/bin/sh\njava -jar "%s" "$@";\n' "$d/apksigner.jar" > "$d/apksigner";
  chmod +x "$d/apksigner";
  export PATH="$d:$PATH";
}

# Variables
tag="$(date -u +"%Y.%m.%d")";
name="$(date -u +"%d %b %Y")";
date="$(date -u +"%Y%m%d%H%M%S")";

# Clone time
echo " ";
echo "Cloning MinMicroG...";
git clone "https://github.com/FriendlyNeighborhoodShane/MinMicroG";
git clone "https://github.com/FriendlyNeighborhoodShane/MinMicroG-abuse-CI" "MinMicroG-resdl";
(
  cd "./MinMicroG-resdl" || error "could not cd";
  git fetch origin "refs/volatile/current:current";
  git checkout "current";
  git reset;
)

# Intro
mkdir "./MinMicroG/releases";
echo " ";
{
  echo " --- MinMicroG autobuild logs --- ";
  echo " ";
  echo "Date: $name $date";
  echo "System: $(uname -a)";
} | tee "./MinMicroG/releases/build-$date.log";

# Setup stuff
echo " ";
echo "Setting up build...";
ln -frs "./MinMicroG-resdl/system" "./MinMicroG-resdl/util" "./MinMicroG/resdl/";
cert="$(curl -fs "https://api.github.com/repos/FriendlyNeighborhoodShane/MinMicroG_releases/releases" | jq -r ".[].assets[].browser_download_url" | grep "certs.tar.gz$" | head -n1)";
[ "$cert" ] && {
  {
    echo " ";
    echo "Cert archive found at $cert"
  } | tee -a "./MinMicroG/releases/build-$date.log";
  (
    cd "./MinMicroG-resdl/util/certs" || error "could not cd";
    rm -rf ./*;
    curl -fL "$cert" | tar xz;
  )
}

# Build time
echo " ";
echo "Updating and building MinMicroG...";
(
  echo " ";
  cd "./MinMicroG" || error "could not cd";
  ./bump.sh "UPDATELY" "999999" "$name";
  ./update.sh;
  ./build.sh all;
) 2>&1 | tee -a "./MinMicroG/releases/build-$date.log";

# Create diff
echo " ";
echo "Generating update diff...";
echo " ";
(
  cd "./MinMicroG-resdl" || error "could not cd";
  git add -A;
  echo "Update diff from last CI build:";
  echo " ";
  git diff -C -C --stat --patch --staged;
  echo " ";
  echo "Update diff from last official build:";
  echo " ";
  git diff -C -C --stat --patch --staged "HEAD^";
) | tee "./MinMicroG/releases/diff-$date.txt";

# Run release script
[ -f ./release ] && ./release "$tag" "$name" "$date";