#!/bin/bash
set -e
set -o pipefail

if [[ -z "$GITHUB_TOKEN" ]]; then
        echo "Set the GITHUB_TOKEN env variable."
        exit 1
fi

if [[ -z "$GITHUB_REPOSITORY" ]]; then
        echo "Set the GITHUB_REPOSITORY env variable."
        exit 1
fi

URI=https://api.github.com
API_VERSION=v3
API_HEADER="Accept: application/vnd.github.${API_VERSION}+json"
AUTH_HEADER="Authorization: token ${GITHUB_TOKEN}"

# Validate the GitHub token.
curl -o /dev/null -sSL -H "${AUTH_HEADER}" -H "${API_HEADER}" "${URI}/repos/${GITHUB_REPOSITORY}" || { echo "Error: Invalid repo, token or network issue!";  exit 1; }

tag_response=$(curl -sSL -H "${AUTH_HEADER}" -H "${API_HEADER}" "${URI}/repos/${GITHUB_REPOSITORY}/releases/latest")

tag_name=$(echo $tag_response | jq -e --raw-output .tag_name)
tag_id=$(echo $tag_response | jq -e --raw-output .id)

echo "tag name: ${tag_name} tag id: ${tag_id}"