#!/usr/bin/env bash
# recipe-upgrade :: post a comment on a Gitea PR/issue
# ----------------------------------------------------
# Usage:
#   BODY='text' post-pr-comment.sh <owner/repo> <pr-number>
#   BODY_FILE=/tmp/comment.md post-pr-comment.sh <owner/repo> <pr-number>
set -o errexit -o nounset -o pipefail

REPO="${1:?usage: post-pr-comment.sh <owner/repo> <pr-number>}"
PRIDX="${2:?usage: post-pr-comment.sh <owner/repo> <pr-number>}"
TESTENV="${TESTENV:-/srv/cc-ci/.testenv}"
set -a; . "$TESTENV"; set +a
: "${GITEA_USERNAME:?}"
: "${GITEA_PASSWORD:?}"
: "${GITEA_URL:?}"

if [ -n "${BODY_FILE:-}" ]; then
  BODY="$(<"${BODY_FILE}")"
else
  : "${BODY:?set BODY or BODY_FILE}"
fi

API="https://${GITEA_URL}/api/v1"
AUTH=(-u "${GITEA_USERNAME}:${GITEA_PASSWORD}")

resp="$(mktemp)"
code="$({ curl -sS -o "$resp" -w "%{http_code}" "${AUTH[@]}" \
  -H "Content-Type: application/json" \
  -X POST "${API}/repos/${REPO}/issues/${PRIDX}/comments" \
  -d "$(jq -n --arg body "$BODY" '{body:$body}')"; } || true)"

if [ "$code" != "201" ]; then
  echo "ERROR: comment POST failed for ${REPO}#${PRIDX} (HTTP ${code})" >&2
  cat "$resp" >&2 || true
  rm -f "$resp"
  exit 1
fi

jq -r '"COMMENT_URL=" + (.html_url // "") + "\nCOMMENT_ID=" + ((.id // 0) | tostring)' "$resp"
rm -f "$resp"