#!/bin/bash -e
################################################################################
##  File:  dotnetcore-sdk.sh
##  Desc:  Installs .NET Core SDK
################################################################################

source $HELPER_SCRIPTS/etc-environment.sh
source $HELPER_SCRIPTS/install.sh
source $HELPER_SCRIPTS/os.sh

# Ubuntu 20 doesn't support EOL versions
if isUbuntu20 ; then
    LATEST_DOTNET_PACKAGES=("dotnet-sdk-3.1")
    release_urls=("https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.1/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.1/releases.json")
fi

if isUbuntu16 || isUbuntu18 ; then
    LATEST_DOTNET_PACKAGES=("dotnet-sdk-3.0" "dotnet-sdk-3.1")
    release_urls=("https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/2.1/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.0/releases.json" "https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/3.1/releases.json")
fi

mksamples()
{
    sdk=$1
    sample=$2
    mkdir "$sdk"
    cd "$sdk" || exit
    dotnet help
    dotnet new globaljson --sdk-version "$sdk"
    dotnet new "$sample"
    dotnet restore
    dotnet build
    set +e
    cd .. || exit
    rm -rf "$sdk"
}

# Disable telemetry
export DOTNET_CLI_TELEMETRY_OPTOUT=1

for latest_package in ${LATEST_DOTNET_PACKAGES[@]}; do
    echo "Determing if .NET Core ($latest_package) is installed"
    if ! IsPackageInstalled $latest_package; then
        echo "Could not find .NET Core ($latest_package), installing..."
        apt-get install $latest_package -y
    else
        echo ".NET Core ($latest_package) is already installed"
    fi
done

# Get list of all released SDKs from channels which are not end-of-life or preview
sdks=()
for release_url in ${release_urls[@]}; do
    echo "${release_url}"
    releases=$(curl "${release_url}")
    sdks=("${sdks[@]}" $(echo "${releases}" | jq '.releases[]' | jq '.sdk.version'))
    sdks=("${sdks[@]}" $(echo "${releases}" | jq '.releases[]' | jq '.sdks[]?' | jq '.version'))
done

sortedSdks=$(echo ${sdks[@]} | tr ' ' '\n' | grep -v preview | grep -v rc | grep -v display | cut -d\" -f2 | sort -u -r)

for sdk in $sortedSdks; do
    url="https://dotnetcli.blob.core.windows.net/dotnet/Sdk/$sdk/dotnet-sdk-$sdk-linux-x64.tar.gz"
    echo "$url" >> urls
    echo "Adding $url to list to download later"
done

# Download additional SDKs
echo "Downloading release tarballs..."
cat urls | xargs -n 1 -P 16 wget -q
for tarball in *.tar.gz; do
    dest="./tmp-$(basename -s .tar.gz $tarball)"
    echo "Extracting $tarball to $dest"
    mkdir "$dest" && tar -C "$dest" -xzf "$tarball"
    rsync -qav "$dest/shared/" /usr/share/dotnet/shared/
    rsync -qav "$dest/host/" /usr/share/dotnet/host/
    rsync -qav "$dest/sdk/" /usr/share/dotnet/sdk/
    rm -rf "$dest"
    rm "$tarball"
done
rm urls

# Smoke test each SDK
for sdk in $sortedSdks; do
    mksamples "$sdk" "console"
    mksamples "$sdk" "mstest"
    mksamples "$sdk" "xunit"
    mksamples "$sdk" "web"
    mksamples "$sdk" "mvc"
    mksamples "$sdk" "webapi"
done

# NuGetFallbackFolder at /usr/share/dotnet/sdk/NuGetFallbackFolder is warmed up by smoke test
# Additional FTE will just copy to ~/.dotnet/NuGet which provides no benefit on a fungible machine
setEtcEnvironmentVariable DOTNET_SKIP_FIRST_TIME_EXPERIENCE 1
setEtcEnvironmentVariable DOTNET_NOLOGO 1
setEtcEnvironmentVariable DOTNET_MULTILEVEL_LOOKUP 0
prependEtcEnvironmentPath /home/runner/.dotnet/tools
echo 'export PATH="$PATH:$HOME/.dotnet/tools"' | tee -a /etc/skel/.bashrc