#!/bin/bash
#
# Commit both on git and svn
#

# Parameters
ARGS="$*"

# Git application we use
GIT="hit"

# Check if a file is inside a git repository
# Usage: git_folder <file>
function git_folder {

  local folder="$*" folder folders dir_list cwd

  if [ -d "$folder/.git" ]; then
    GIT_FOLDER="$folder"
    return
  fi

  # reverse folder order
  dir_list="`echo $folder | tr '/' ' '`"
  for i in $dir_list; do
    folders="$i $folders"
  done

  cwd="`pwd`"
  cd "$folder"

  for i in $folders; do
    cd ..
    if [ -d "$(pwd)/.git" ]; then
      GIT_FOLDER="$(pwd)"
      cd "$cwd"
      return
    fi
  done

  cd "$cwd"
  return 1

}

# Check if a folder is inside a git repository
function is_git {
  # simple git folder checker
  # usage: is_git <folder>
  if [ -z "$1" ]; then
    return 1
  elif [ ! -d "$1" ]; then
    return 1
  elif [ -d "$1/.git" ]; then
    return
  else
    ( cd "$1" && $GIT status &> /dev/null )
    
    if [ "$?" != "128" ]; then
      return
    else
      return 1
    fi
  fi
}

# Check if a folder is inside a svn repository
function is_svn {
  # simple svn folder checker
  # usage: is_svn <folder>
  
  if [ -d "$1/.svn" ]; then
    return
  else
    return 1
  fi
} 

# Push to repositories
function git_push {
  if [ "`git remote | wc -l`" == "0" ]; then
    return
  elif $GIT remote | grep -q 'all'; then
    $GIT push all --all
  #elif git remote | grep -q 'origin'; then
  #  echo "Please configure the 'all' remote first."
  #  exit 1
  #  #$GIT push --all
  fi
}

# Check user information
function git_user {
  if [ -z "`git config --local user.email`" ] || [ -z "`git config --local user.name`" ]; then
    if echo $ARGS | grep -q -- '--config'; then
      if grep -q "^\[user\]" $HOME/.gitconfig; then
        grep -A 2 "^\[user\]" $HOME/.gitconfig >> $GIT_FOLDER/.git/config
      else
        grep -A 2 "^\[user\]" $HOME/.custom/gitconfig >> $GIT_FOLDER/.git/config
      fi
    else

      echo "No user configuration section found in the repository."
      echo "This might be a privacy issue"
      echo ""

      if [ -e "$HOME/.custom/gitconfig" ]; then
        echo "You should try to use your default setting:"
        echo ""

        if [ "$GIT_FOLDER" == "$(pwd)" ]; then
          echo "cat <<EOF >> .git/config"
        else
          echo "cat <<EOF >> $GIT_FOLDER/.git/config"
        fi
        grep -A 2 "^\[user\]" $HOME/.custom/gitconfig
        echo "EOF"

        echo ""
        echo "Use --config if you want these lines to be added at .git/config"
      fi

      exit 1

    fi
  fi
}

# Commit changes
function git_commit {
  # Remove '--config' from args, otherwise it goes to the commit log
  params="`echo $* | sed -e 's/--config//'`"

  # Avoid detached HEAD
  if $GIT branch | grep -q '^* (HEAD detached'; then
    echo "Beware: trying to commit in detached HEAD state; checkout to a branch first"
    exit 1
  fi

  # If there are no staged files, commit everything.
  # Otherwise commit just what was staged
  if $GIT status --short | grep -q "^[AM]"; then
    flag=""
  else
    flag="-a"
  fi

  $GIT commit $flag -m "$params" || exit 1
}

# Main
if [ ! -z "$1" ]; then
  if is_svn .; then
    svn commit -m "$*"
  fi

  if is_git .; then
    git_folder $(pwd)
    git_user
    git_commit $*
    git_push

    # Avoid ssh lockfile issues by sleeping a bit
    sleep 1

    $GIT fetch --all
  fi
fi