#!/usr/bin/env bash
#
# Add a comment to an issue via Gitea API. The comment body is automatically
# signed with: Support IA du projet Lecoffre.io / ai.support.lecoffreio@4nkweb.com
# Usage: ./comment-issue.sh <issue_number> <message>
# Or:    echo "message" | ./comment-issue.sh <issue_number> -
#
set -euo pipefail

GITEA_ISSUES_DIR="${GITEA_ISSUES_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)}"
# shellcheck source=lib.sh
source "${GITEA_ISSUES_DIR}/lib.sh"

# Signature appended to every comment (same as mail replies)
COMMENT_SIGNATURE=$'\n\n--\nSupport IA du projet Lecoffre.io\nai.support.lecoffreio@4nkweb.com'
if [[ -n "${GITEA_COMMENT_SIGNATURE:-}" ]]; then
	COMMENT_SIGNATURE="${GITEA_COMMENT_SIGNATURE}"
fi

require_jq || exit 1

if [[ $# -lt 1 ]]; then
	log_err "Usage: $0 <issue_number> <message>"
	log_err "   Or: $0 <issue_number> -   (read message from stdin)"
	exit 1
fi

ISSUE_NUM="$1"
if [[ "${2:-}" == "-" ]]; then
	BODY="$(cat)"
else
	BODY="${2:-}"
fi

if [[ -z "$BODY" ]]; then
	log_err "Comment body is empty."
	exit 1
fi

BODY="${BODY}${COMMENT_SIGNATURE}"

# Escape for JSON: jq -Rs . handles newlines and quotes
BODY_JSON="$(echo "$BODY" | jq -Rs .)"
RESPONSE="$(gitea_api_post "/repos/${GITEA_REPO_OWNER}/${GITEA_REPO_NAME}/issues/${ISSUE_NUM}/comments" "{\"body\":${BODY_JSON}}")"
if ! echo "$RESPONSE" | jq -e . &>/dev/null; then
	log_err "API error posting comment: ${RESPONSE:0:200}"
	exit 1
fi

log_info "Comment added to issue #${ISSUE_NUM}."