#!/bin/bash

# Argument check and validation
if [ -z "$1" ]; then
  echo "Error: Please provide an action (sync or create) and a folder name."
  exit 1
fi

action="$1"
folder_to_sync="$2"
external_base_dir="../external-nise.moe"
external_dir="$external_base_dir/$folder_to_sync"

# Validation
if [ -z "$folder_to_sync" ]; then
  echo "Error: Please provide a folder name."
elif [ ! -d "$folder_to_sync" ]; then
  echo "Error: Folder '$folder_to_sync' does not exist in the monorepo."
  exit 1
fi

# Action Handling
if [ "$action" == "sync" ]; then
  # Create external directory if needed
  mkdir -p "$external_dir"

  # Synchronization using rsync
  echo "Synchronizing files from '$folder_to_sync' to '$external_dir'..."
  rsync -av --delete --exclude-from='.gitignore' --exclude='.git' "$folder_to_sync/" "$external_dir/"

  # Change directory for committing
  cd "$external_dir" || { echo "Error: Failed to change directory to $external_dir"; exit 1; }

  # Git commit
  git add .
  git commit -S -am "$(date +%Y%m%d)"

  echo "Synchronization complete and changes committed."
elif [ "$action" == "create" ]; then
  # Create external directory
  mkdir -p "$external_dir"

  # Change directory (with error handling)
  cd "$external_dir" || { echo "Error: Failed to change directory to $external_dir"; exit 1; }

  # Git Initialization
  git init
  git config user.email "162507023+nise-moe@users.noreply.github.com"
  git config user.name "nise.moe"
  git config gpg.format ssh
  git config commit.gpgsign true
  git config user.signingkey /home/anon/.ssh/nise-moe.pub
  git branch -M main
  git remote add origin git@github.com:nise-moe/"$folder_to_sync".git

  echo "External folder '$external_dir' created and initialized as a Git repository."

else
  echo "Error: Invalid action. Please choose 'sync' or 'create'."
  exit 1
fi