#!/usr/bin/env bash
set -euo pipefail

INPUT_FILE="${INPUT_FILE:?}"
YQ_TPL="${YQ_TPL:?}"
VERSION="${VERSION:?}"
SOURCE_REPO="${SOURCE_REPO:?}"
SOURCE_COMMIT="${SOURCE_COMMIT:?}"
GITOPS_REPO="${GITOPS_REPO:?}"
GITEA_TOKEN="${GITEA_TOKEN:?}"
GITEA_API_URL="${GITEA_API_URL:?}"
GITOPS_BRANCH="${GITOPS_BRANCH:-main}"

_gitops_substitute() {
  echo "$1" | sed "s/{{VERSION}}/$2/g"
}

YQ_EXPR=$(_gitops_substitute "${YQ_TPL}" "${VERSION}")

GITEA_HOST=$(echo "${GITEA_API_URL}" | sed 's|https://||' | sed 's|http://||')
CLONE_URL="https://${GITEA_TOKEN}@${GITEA_HOST}/${GITOPS_REPO}.git"

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

_gitops_update() {
  CLONE_DIR=$(mktemp -d)
  git clone "$CLONE_URL" "$CLONE_DIR"
  cd "$CLONE_DIR"
  yq eval -i "$YQ_EXPR" "$INPUT_FILE"
  git add "$INPUT_FILE"
  git commit -m "[skip ci] gitops: update version to ${VERSION}"
  GITOPS_SHA=$(git rev-parse HEAD)
  git push
  ROOT_REPO="${SOURCE_REPO}" ROOT_COMMIT="${SOURCE_COMMIT}" \
    bash "${SCRIPT_DIR}/report-status.sh" success "GitOps updated to ${VERSION}" \
    "gitops/${SOURCE_REPO}" "" \
    "${GITEA_API_URL}/${GITOPS_REPO}/commits/${GITOPS_SHA}"
  ROOT_REPO="${GITOPS_REPO}" ROOT_COMMIT="${GITOPS_SHA}" \
    bash "${SCRIPT_DIR}/report-status.sh" success "Source build" \
    "source/${SOURCE_REPO}" "" \
    "${GITEA_API_URL}/${SOURCE_REPO}/commits/${SOURCE_COMMIT}"
}

if [ "${BASH_SOURCE[0]}" = "${0}" ]; then
  _gitops_update
fi