#!/bin/bash -e

. "node_modules/@pathable/pathable-scripts/scripts/_env.sh"
. "node_modules/@pathable/pathable-scripts/scripts/_lib.sh"

load_env "$HOME/.pathable-env"
load_env "private/env/$environment/.env"

packageDir=$METEOR_PACKAGE_DIRS

currentPath=$PWD
currentDir=${PWD##*/}

function prepare {
  package=${1-}
  pull=${2-}
  git fetch
  branch=$(getBranch)
  printf "${BLUE}Preparing \""${package}\"" to \"${branch}\"...\n${NC}"
  git checkout $branch
  if [ "$pull" = true ]; then
    if existsRemoteBranch $branch; then
      if git status -uno | grep -qo "nothing to commit"; then
        git branch --set-upstream-to=origin/$branch $branch
        git pull
      fi
    fi
  fi
}

function prepareDependencies {
  package=${1-}
  pull=${2-}
  packagePath=../pathable-packages
  if [ ! -d "$packagePath" ]; then
    branch=$(getBranch)
    git clone --recursive https://github.com/pathable/pathable-packages.git $packagePath
  fi
  cd $packagePath
  prepare $package $pull
  cd $currentPath
}

# Prepare app packages from a Meteor app
function prepareAppDependencies {
  pull=${1-}
  prepareDependencies "pathable-packages" $pull
}

# Prepare app packages from a Meteor app
function preparePackageDependencies {
  pull=${1-}
  prepareDependencies "pathable-packages" $pull
}

function usage { echo "Usage: $0 [-p(ull)]" 1>&2; exit 1; }

# parse optional parameters
while getopts ":prc" opt; do
  case $opt in
    p)
      pull=true
      ;;
    *)
      usage
      ;;
  esac
done
shift $((OPTIND-1))

checkoutBranch=${1-$(git rev-parse --abbrev-ref HEAD)}
fallbackBranch=${2-$(currentAncestorBranch $checkoutBranch)}

# Get the branch to check out
function getBranch {
  branch=''
  if existsBranch $checkoutBranch; then
    branch=$checkoutBranch
  else
    if existsBranch $fallbackBranch; then
      branch=$fallbackBranch
    else
      branch="master"
    fi
  fi
  echo $branch
}

printf "${BLUE}branch: ${checkoutBranch}\n${NC}"
printf "${BLUE}fallback: ${fallbackBranch}\n${NC}"
printf "\n"

prepare $currentDir $pull
if isApp; then
  prepareAppDependencies $pull
elif isPackage; then
  preparePackageDependencies $pull
fi