#!/usr/bin/env bash
# Used to convert a single universe repo file with multiple
# packages in to multiple build definition files

# Exit on errors
set -e

# Takes one argument - valid path to a stub universe json file
STUB_UNIVERSE_JSON=$1

if [[ ! -f $STUB_UNIVERSE_JSON ]]; then
    echo "$STUB_UNIVERSE_JSON is not a valid file" && exit 1
fi

# Ensure jq is installed
which jq || $(echo "jq is not installed" && exit 1)

if [ $(cat "$STUB_UNIVERSE_JSON" | jq -r type) = "object" ]; then
    # Parse each package
    packages=$(cat $STUB_UNIVERSE_JSON | jq .packages)
    for row in $(echo "$packages" | jq -r '.[] | @base64'); do
        data=$(echo "$row" | base64 --decode)
        name=$(echo "$data" | jq -r '.name')
        version=$(echo "$data" | jq -r '.version')
        filename="$name-$version.json"

        packagingVersion=$(echo "$data" | jq -r '.packagingVersion')
        if (( ${packagingVersion%.*} >= 3)); then
            echo "$packagingVersion is supported. Creating $filename"
        else
            echo "$packagingVersion is not supported. Ignoring $filename"
            continue
        fi

        echo "$data" | jq 'del(.releaseVersion,.selected)' > "$filename"
        echo "Created $filename"
    done
else
    echo "Given file is not a valid json object"
fi