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

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

if [[ -f "$SCRIPT_DIR/.env" ]]; then
  set -a
  # shellcheck disable=SC1091
  source "$SCRIPT_DIR/.env"
  set +a
fi

HA_REPO_PATH="${HA_REPO_PATH:-../gree-controller-ha-addon}"
HA_REPO_BRANCH="${HA_REPO_BRANCH:-master}"

if [[ "$HA_REPO_PATH" != /* ]]; then
  HA_REPO_PATH="$PROJECT_ROOT/$HA_REPO_PATH"
fi

HA_REPO_PATH="$(realpath -m "$HA_REPO_PATH")"

VERSION="$(
  awk -F '"' '/^version = "/ {print $2; exit}' \
    "$PROJECT_ROOT/Cargo.toml"
)"

[[ -n "$VERSION" ]] || {
  echo "Cannot determine version from Cargo.toml" >&2
  exit 1
}

command -v git >/dev/null 2>&1 || {
  echo "git is required" >&2
  exit 1
}

command -v rsync >/dev/null 2>&1 || {
  echo "rsync is required" >&2
  exit 1
}

[[ -d "$HA_REPO_PATH/.git" ]] || {
  echo "HA_REPO_PATH is not a Git repository: $HA_REPO_PATH" >&2
  exit 1
}

echo "==> Building and pushing OCI image ${VERSION}"
"$SCRIPT_DIR/build.sh" push

echo "==> Syncing Home Assistant repository"
rsync -a --delete \
  --exclude='.git/' \
  "$SCRIPT_DIR/repository/" \
  "$HA_REPO_PATH/"

cd "$HA_REPO_PATH"

echo "==> Updating branch ${HA_REPO_BRANCH}"
git checkout "$HA_REPO_BRANCH"

git add -A

if git diff --cached --quiet; then
  echo "No Home Assistant repository changes to publish."
  exit 0
fi

echo "==> Committing Home Assistant add-on ${VERSION}"
git commit -m "GREE Controller ${VERSION}"

echo "==> Pushing to Gitea"
git push origin "$HA_REPO_BRANCH"

echo
echo "Published:"
echo "  image version: ${VERSION}"
echo "  HA repository: ${HA_REPO_PATH}"
echo "  branch:        ${HA_REPO_BRANCH}"