#!/bin/sh

setup_git() {
  echo "Setting up Git..."

  GIT_URL="https://oauth2:${GIT_TOKEN}@${BACKEND_GIT_REPO}"
  BRANCH="${BACKEND_GIT_BRANCH:-main}"
  FORCE_CLONE="${FORCE_CLONE:-false}"

  git config --global --add safe.directory "$APP_DIR"

  if [ ! -d "$APP_DIR/.git" ]; then
      echo "Cloning repo..."
      git clone -b "$BRANCH" "$GIT_URL" "$APP_DIR"
  else
      echo "Updating repo..."
      cd "$APP_DIR"
      CURRENT_BRANCH=$(run git rev-parse --abbrev-ref HEAD)

      if [ "$CURRENT_BRANCH" = "$BRANCH" ]; then
          run git fetch origin
          run git reset --hard origin/"$CURRENT_BRANCH"
      else
          if [ "$FORCE_CLONE" = "true" ]; then
              rm -rf "$APP_DIR"
              mkdir -p "$APP_DIR"
              git clone -b "$BRANCH" "$GIT_URL" "$APP_DIR"
          else
              run git fetch origin
              run git reset --hard origin/"$BRANCH"
          fi
      fi
  fi

  cd "$APP_DIR"
}