#!/bin/bash

if [ -z "$1" ]; then
    echo "First argument must be RC tag"
    exit -1
fi

if [ -z "$2" ]; then
    echo "Second argument must be a GA tag"
    exit -1
fi

if [ -z "$APRO_REPO_TARGET" ]; then
    echo "APRO_REPO_TARGET not set. This should be set in the environment"
    exit -1
fi

# remove existing apro-prep-rc in case this is being run
# locally on a long lived dev machine
if [ -d "/tmp/apro-prep-rc" ]; then
    rm -rf /tmp/apro-prep-rc
fi

# get a fresh copy of apro
git clone https://github.com/$APRO_REPO_TARGET.git /tmp/apro-prep-rc
pushd /tmp/apro-prep-rc

# checkout or create proper rel branch
if [ ! $(git checkout rel/$2) ]; then
    case $2 in
        *"v1."*)
            git checkout ltr
            ;;
        *"v2."*)
            git checkout master
            ;;
        *)
            echo "Not intelligent enough to find branch that tracks $2 parent releases"
            exit 1
    esac

    git checkout -b rel/$2
fi

# set emissary tag into apro
CURRENT_EMISSARY_TAG=$(grep 'imageTag' emissaryInfo.yml | sed 's/imageTag://g' | tr -d ' ')
sed -i "s/$CURRENT_EMISSARY_TAG/$1/g" emissaryInfo.yml
git add .
git commit -s -m "(from CI) bump emissary version to latest RC"
git push --set-upstream origin rel/$2