#!/bin/sh

base_dir=$(
  dirname "$(
    readlink -f "$0"
  )"
)

api_url='https://api.github.com'
auth='Authorization: token '"$(
  gpg -d -o - "${base_dir}/pw.gpg" 2>/dev/null
)"

owner='archlinux32'
repo='archlinux32-keyring'
tag='v20180411'
file='test.asc'
name='test.asc'

repo_url="${api_url}/repos/${owner}/${repo}"
tags_url="${repo_url}/releases/tags/${tag}"

response=$(
  curl -sH "${auth}" "${repo_url}"
)

if echo "${response}" | \
  grep -qF '"Bad credentials"'; then
  >&2 echo "${response}"
  exit 1
fi

eval $(
  curl -sH "${auth}" "${tags_url}" | \
    grep -m1 '"id":' | \
    tr : = | \
    tr -cd '[[:alnum:]]='
)

if [ -z "${id}" ]; then
  >&2 printf 'Error: Failed to get release id for tag %s.\n' "${tag}"
  >&2 printf '%s\n' "${response}"
  exit 1
fi

upload_url="https://uploads.github.com/repos/${owner}/${repo}/releases/${id}/assets?name=${name}"
curl \
  --data-binary @"${file}" \
  -H "${auth}" \
  -H "Content-Type: application/octet-stream" \
  "${upload_url}"