#!/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 FNA."
		exit 1
	fi
}

# Pulls FNA from github
function pullFNA()
{
	checkGit
	git submodule add https://github.com/FNA-XNA/FNA.git
	echo "Updating to the latest git version of FNA..."
	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 ("fnalibs")
function getLibs()
{
	# Downloading
	echo "Downloading latest fnalibs..."
	curl https://fna.flibitijibibo.com/archive/fnalibs.tar.bz2 > "$MY_DIR/fnalibs.tar.bz2"
	if [ $? -eq 0 ]; then
		echo "Finished downloading!"
	else
		>&2 echo "ERROR: Unable to download successfully."
		exit 1
	fi

	# Decompressing
	echo "Decompressing fnalibs..."
	mkdir -p "$MY_DIR"/fnalibs
	tar xjC "$MY_DIR"/fnalibs -f "$MY_DIR"/fnalibs.tar.bz2
	if [ $? -eq 0 ]; then
		echo "Finished decompressing!"
		echo ""
		rm "$MY_DIR"/fnalibs.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 "$NEW_PROJECT_DIR"
files=(ProjectName.Core.sln ProjectName.Framework.sln .gitignore ProjectName/ProjectName.Core.csproj ProjectName/ProjectName.Framework.csproj ProjectName/ProjectNameGame.cs ProjectName/Program.cs .vscode/tasks.json .vscode/launch.json)
for file in "${files[@]}"; do
	sed -i -e "s/ProjectName/$newProjectName/g" "./$file"
	if [ "$(uname)" == "Darwin" ]; then
		rm ./${file}-e
	fi
done

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

rm -rf .git
git init
pullFNA

dotnet sln ${newProjectName}.Framework.sln add FNA/FNA.csproj
dotnet sln ${newProjectName}.Core.sln add FNA/FNA.Core.csproj

echo "Project $newProjectName created at: "

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