#!/usr/bin/env sh

set -o errexit
set -o nounset

GITEA_RUNNER_NAME="${GITEA_RUNNER_NAME:-main}"

LOG_PIPE="$(mktemp -u)"
mkfifo "$LOG_PIPE"

(
  while IFS= read -r line; do
    if echo "$line" | grep -qiE 'level=(warn|error|fatal)'; then
      echo "$line" >&2
    else
      echo "$line"
    fi
  done < "$LOG_PIPE"
) &

if [ ! -f /var/lib/gitea-act-runner/registration ]; then
  GITEA_API="${GITEA_INSTANCE_URL%/}/api/v1"

  auth="Authorization: Basic $(echo -n "$GITEA_ADMIN_USERNAME:$GITEA_ADMIN_PASSWORD" | base64 -w 0)"

  runners="$(curl -sf --retry 10 --retry-connrefused -H "$auth" "$GITEA_API/admin/actions/runners")"
  old_runner="$(echo "$runners" | jq -r ".runners[] | select(.name == \"$GITEA_RUNNER_NAME\") | .id")"

  if [ -n "$old_runner" ]; then
    curl -sf -X DELETE -H "$auth" "$GITEA_API/admin/actions/runners/$old_runner"
  fi

  act_runner --config /etc/gitea-act-runner/config.yaml register \
    --no-interactive \
    --instance "$GITEA_INSTANCE_URL" \
    --token "$GITEA_RUNNER_REGISTRATION_TOKEN" \
    --name "$GITEA_RUNNER_NAME" \
    --labels "${GITEA_RUNNER_LABELS:-}" > "$LOG_PIPE" 2>&1
fi

exec act_runner --config /etc/gitea-act-runner/config.yaml daemon "$@" > "$LOG_PIPE" 2>&1