#!/bin/bash

# This script serves as a drop-in replacement for running Gradle tasks locally.
# It automates the process of building a Gradle project on a remote server by synchronizing local files,
# executing specified Gradle tasks remotely, and copying all build outputs back to your local machine.

# Disclaimer
echo "Please note that this script is quite basic and not recommended for use with public build servers."
echo "Since rsync transfers all files from the developer's machine, including potentially sensitive information"
echo "like secrets or configuration files, it should be used with care."

if ! [ -f build.gradle.kts ]; then
  echo "No build.gradle.kts found"
  exit 1
fi

remote=$GRADLE_REMOTE_SSH
if [ -z "$remote" ]; then
  echo "\$GRADLE_REMOTE_SSH is not set, please set it to a valid SSH login on your build server"
  exit 1
fi

remote_dir=$GRADLE_REMOTE_DIR
if [ -z "$remote_dir" ]; then
  echo "\$GRADLE_REMOTE_DIR is not set, please set it to the directory where the project should be copied on the remote server"
  exit 1
fi

remote_project_dir="$remote_dir/$(basename "$(dirname "$PWD")")_$(basename "$PWD")"

set -e

# Define rsync exclusions
exclusions=(
  --exclude .git/
  --exclude .github/
  --exclude .gradle/
  --exclude .idea/
  --exclude .kotlin/
  --exclude .signing/
  --exclude metadata
  --exclude build/
)

# Define rsync inclusions
inclusions=(
  --include .gradle/gradle.properties
)

# Copy the project to the remote server, excluding specified paths but including gradle properties
rsync -irc "${exclusions[@]}" "${inclusions[@]}" --delete . "$remote:$remote_project_dir"

# Run the gradle command on the remote
ssh -t "$remote" "cd $remote_project_dir && ./gradlew $*"

# Copy the build directory back
rsync --delete -ircuq "$remote:$remote_project_dir/build" . | (grep -v '/$' || true)