#!/bin/bash

mkdir -p vscode
cd vscode

git init -q
git remote add origin https://github.com/Microsoft/vscode.git

# figure out latest tag by calling MS update API
if [ "$INSIDER" == "1" ]; then
	UPDATE_INFO=$(curl https://update.code.visualstudio.com/api/update/darwin/insider/lol)
    export MS_COMMIT=$(echo $UPDATE_INFO | jq -r '.version')
    export MS_TAG=$(echo $UPDATE_INFO | jq -r '.name')
elif [[ -z "${MS_TAG}" ]]; then
	UPDATE_INFO=$(curl https://update.code.visualstudio.com/api/update/darwin/stable/lol)
    export MS_COMMIT=$(echo $UPDATE_INFO | jq -r '.version')
    export MS_TAG=$(echo $UPDATE_INFO | jq -r '.name')
else
    tag_line=$( git ls-remote --tags --sort=-version:refname | grep "refs\/tags\/${MS_TAG}" | head -1 )

    [[ "${tag_line}" =~ ^([[:alnum:]]+)[[:space:]]+refs\/tags\/([0-9]+\.[0-9]+\.[0-9]+)$ ]]

    export MS_COMMIT="${BASH_REMATCH[1]}"
fi

echo "Got the MS tag: ${MS_TAG} version: ${MS_COMMIT}"

git fetch --depth 1 origin $MS_COMMIT
git checkout FETCH_HEAD

cd ..

# for GH actions
if [[ $GITHUB_ENV ]]; then
	echo "MS_TAG=$MS_TAG" >> $GITHUB_ENV
	echo "MS_COMMIT=$MS_COMMIT" >> $GITHUB_ENV
fi