#!/bin/bash
# Author: Evan Hemsley
# Usage: ./install.sh

# This file is heavily borrowed from Caleb Cornett's template install script.

# Get the directory of this script
MY_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

readlinkf(){ perl -MCwd -e 'print Cwd::abs_path shift' "$1";}

# Checks if git is installed
function checkGit()
{
	git --version > /dev/null 2>&1
	if [ ! $? -eq 0 ]; then
		echo >&2 "ERROR: Git is not installed. Please install git to download MoonWorks."
		exit 1
	fi
}

# Pulls MoonWorks from github
function pullMoonWorks()
{
	checkGit
	cd lib
	git submodule add https://gitea.moonside.games/MoonsideGames/MoonWorks.git
	cd ..
	echo "Updating to the latest release of MoonWorks..."
	git submodule update --init --recursive
	if [ $? -eq 0 ]; then
		echo "Finished updating!"
	else
		echo >&2 "ERROR: Unable to update."
		exit 1
	fi
}

# Downloads and extracts prepackaged archive of native libraries ("moonlibs")
function getLibs()
{
	# Downloading
	echo "Downloading latest moonlibs..."
	curl https://moonside.games/files/moonlibs.tar.bz2 > "$MY_DIR/moonlibs.tar.bz2"
	if [ $? -eq 0 ]; then
		echo "Finished downloading!"
	else
		>&2 echo "ERROR: Unable to download successfully."
		exit 1
	fi

	# Decompressing
	echo "Decompressing moonlibs..."
	mkdir -p "$MY_DIR"
	mkdir -p "$MY_DIR"/moonlibs
	tar -xvC "$MY_DIR"/moonlibs -f "$MY_DIR"/moonlibs.tar.bz2
	if [ $? -eq 0 ]; then
		echo "Finished decompressing!"
		echo ""
		rm "$MY_DIR"/moonlibs.tar.bz2
	else
		>&2 echo "ERROR: Unable to decompress successfully."
		exit 1
	fi
}

read -p "Enter your project name or 'exit' to quit: " newProjectName
if [[ $newProjectName = 'exit' || -z "$newProjectName" ]]; then
	exit 1
fi

NEW_PROJECT_DIR="$MY_DIR/../$newProjectName"

if [ -d "$NEW_PROJECT_DIR" ]; then
  >&2 echo "ERROR: Project directory already exists."
  exit 1
fi

getLibs

# copy everything into new dir
cp -R "$MY_DIR" "$NEW_PROJECT_DIR"

cd "$NEW_PROJECT_DIR"
files=(ProjectName.sln .gitignore ProjectName.csproj src/ProjectNameGame.cs src/Program.cs .vscode/tasks.json .vscode/launch.json)
for file in "${files[@]}"; do
	sed -i -e "s/ProjectName/$newProjectName/g" "./$file"
	if [ "$(uname)" == "Darwin" ]; then
		rm ./${file}-e
	fi
done

mv ./ProjectName.sln "./$newProjectName.sln"
mv ./ProjectName.csproj "./$newProjectName.csproj"
mv ./src/ProjectNameGame.cs ./src/${newProjectName}Game.cs
rm ./install.sh
rm ./LICENSE

rm -rf .git
git init
mkdir lib
pullMoonWorks

dotnet sln ${newProjectName}.sln add ${newProjectName}.csproj --in-root
dotnet sln ${newProjectName}.sln add lib/MoonWorks/MoonWorks.csproj --in-root
dotnet sln ${newProjectName}.sln add lib/MoonWorks/lib/dav1dfile/csharp/dav1dfile-CS.csproj --in-root
dotnet sln ${newProjectName}.sln add lib/MoonWorks/lib/FAudio/csharp/FAudio-CS.Core.csproj --in-root
dotnet sln ${newProjectName}.sln add lib/MoonWorks/lib/RefreshCS/RefreshCS.csproj --in-root
dotnet sln ${newProjectName}.sln add lib/MoonWorks/lib/SDL2-CS/SDL2-CS.Core.csproj --in-root
dotnet sln ${newProjectName}.sln add lib/MoonWorks/lib/WellspringCS/WellspringCS.csproj --in-root

echo "Project $newProjectName created at: "

if [ "$(uname)" == "Darwin" ]; then
	echo $(readlinkf $NEW_PROJECT_DIR)
else
	echo $(readlink -f $NEW_PROJECT_DIR)
fi