#!/usr/bin/env bash

# Define directories.
SCRIPT_DIR=$PWD
TOOLS_DIR=$SCRIPT_DIR/tools
CAKE_VERSION=0.19.4
CAKE_DLL=$TOOLS_DIR/Cake.CoreCLR.$CAKE_VERSION/Cake.dll
DOTNET_VERSION=1.0.3
DOTNET_INSTRALL_URI=https://raw.githubusercontent.com/dotnet/cli/rel/1.0.1/scripts/obtain/dotnet-install.sh

# Make sure the tools folder exist.
if [ ! -d "$TOOLS_DIR" ]; then
  mkdir "$TOOLS_DIR"
fi

###########################################################################
# INSTALL .NET CORE CLI
###########################################################################

echo "Installing .NET CLI..."
if [ ! -d "$SCRIPT_DIR/.dotnet" ]; then
  mkdir "$SCRIPT_DIR/.dotnet"
fi
curl -Lsfo "$SCRIPT_DIR/.dotnet/dotnet-install.sh" $DOTNET_INSTRALL_URI
sudo bash "$SCRIPT_DIR/.dotnet/dotnet-install.sh" -c preview --version $DOTNET_VERSION --install-dir .dotnet --no-path
export PATH="$SCRIPT_DIR/.dotnet":$PATH
export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
export DOTNET_CLI_TELEMETRY_OPTOUT=1
"$SCRIPT_DIR/.dotnet/dotnet" --info


###########################################################################
# INSTALL CAKE
###########################################################################

if [ ! -f "$CAKE_DLL" ]; then
    curl -Lsfo "$TOOLS_DIR/Cake.CoreCLR.zip" "https://www.nuget.org/api/v2/package/Cake.CoreCLR/$CAKE_VERSION" && unzip -q "$TOOLS_DIR/Cake.CoreCLR.zip" -d "$TOOLS_DIR/Cake.CoreCLR.$CAKE_VERSION" && rm -f "$TOOLS_DIR/Cake.CoreCLR.zip"
    if [ $? -ne 0 ]; then
        echo "An error occured while installing Cake."
        exit 1
    fi
fi

# Make sure that Cake has been installed.
if [ ! -f "$CAKE_DLL" ]; then
    echo "Could not find Cake.exe at '$CAKE_DLL'."
    exit 1
fi

###########################################################################
# RUN BUILD SCRIPT
###########################################################################

# Point net452 to Mono assemblies
export FrameworkPathOverride=$(dirname $(which mono))/../lib/mono/4.5/

# Start Cake
exec dotnet "$CAKE_DLL" "$@"