#!/bin/bash

set -euo pipefail

if [[ $# -lt 2 ]]; then
    echo "Usage: $0 <chart_dir> <base_version>"
    echo "  <chart_dir> - The chart directory."
    echo "  <base_version> - The base version. For example 2024.2.0."
    echo "                   Will be modified to 2024.2.<patch>+<commit_sha>"
    exit 1
fi

CHART_DIR=$1
BASE_VERSION=$2
MAJOR=$(echo "$BASE_VERSION" | cut -d. -f1)
MINOR=$(echo "$BASE_VERSION" | cut -d. -f2)

if git show-ref --tags "$BASE_VERSION" --quiet; then
    # if there is tag $BASE_VERSION, then we count the number of commits since the tag
    PATCH=$(git log --oneline "${BASE_VERSION}.." "$CHART_DIR" | wc -l | xargs)
else
    # if there is no tag $BASE_VERSION, then we count the number of commits since the beginning
    PATCH=$(git log --oneline "$CHART_DIR" | wc -l | xargs)
fi

COMMIT_SHA=$(git rev-parse --short HEAD)
echo "${MAJOR}.${MINOR}.${PATCH}+${COMMIT_SHA}"