#!/bin/bash
set -euo pipefail

REPO_ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
CI_IMAGE=${CI_IMAGE:-knel/cloudron-ci}
BUILD=${BUILD:-0}

ensure_image() {
  if [[ "${BUILD}" == "1" ]]; then
    docker build -t "${CI_IMAGE}" "${REPO_ROOT}/docker/ci-runner"
    return
  fi

  if ! docker image inspect "${CI_IMAGE}" >/dev/null 2>&1; then
    docker build -t "${CI_IMAGE}" "${REPO_ROOT}/docker/ci-runner"
  fi
}

run_in_ci() {
  local cmd=$1
  docker run --rm -t \
    -v "${REPO_ROOT}:/workspace" \
    -v /var/run/docker.sock:/var/run/docker.sock \
    "${CI_IMAGE}" "${cmd}"
}

lint() {
  run_in_ci 'git config --global --add safe.directory /workspace && make lint && make status && git diff --exit-code docs/APP_STATUS.md'
}

packager_smoke() {
  run_in_ci 'git config --global --add safe.directory /workspace && docker build -t knel/cloudron-packager-test docker/packager && docker run --rm knel/cloudron-packager-test cloudron --help'
}

usage() {
  cat <<USAGE
Usage: $(basename "$0") [lint|status|packager-smoke|all]

Options:
  lint             Run make lint + status and verify dashboard is committed
  status           Regenerate docs/APP_STATUS.md
  packager-smoke   Build the helper packager image and run cloudron --help
  all              Execute lint and packager-smoke

Environment variables:
  BUILD=1          Force rebuild of the CI image before running tasks
  CI_IMAGE         Override the CI harness image tag (default: knel/cloudron-ci)
USAGE
}

status_only() {
  run_in_ci 'git config --global --add safe.directory /workspace && make status'
}

main() {
  ensure_image
  local target=${1:-all}
  case "${target}" in
    lint)
      lint
      ;;
    status)
      status_only
      ;;
    packager-smoke)
      packager_smoke
      ;;
    all)
      lint
      packager_smoke
      ;;
    -h|--help)
      usage
      ;;
    *)
      echo "Unknown target: ${target}" >&2
      usage
      exit 1
      ;;
  esac
}

main "$@"