#!/bin/bash
# assumes that bash is installed
#!/bin/bash

# use this to improve same below
# install_shell_base () {
#     # TODO have a cross distro package install
#     [[ ! $(which git) ]] && apt-get install --no-install-recommends git -y
#     [[ ! $EUID -eq 0 ]] && { echo ERROR script must be run as root; return; }
#     local user
#     [[ $1 == "-u" ]] && user=$2 && shift 2
#     local dir=${2:-/shell}
#     local repo=${1:-base} 
#     local rpath=$dir/$repo
#     mkdir -p $rpath
#     # TODO set git host via option or env var
#     git clone https://git.kebler.net/bash/shell-$repo.git $rpath
#     chown -R ${user:-1000}:${user:-1000} $rpath
#     chmod -R +r $rpath
# }


# must! be run as sudo
install_shell_base () {
    if [[ $1 == "-f" ]];then 
    shift
    echo forcing reinstall
    else 
    if [[ $BASH_SHELL_BASE ]] && [[ -d $BASH_SHELL_BASE ]]; then
      echo appears that UCI shell base is already installed at $BASH_SHELL_BASE 
      echo upgrade instead using: 'module_load uci-shell-install; update_shell_base'
      return 1
    fi
    fi
    if [[ ! $BASH_SHELL_GIT_URL ]]; then
      echo BASH_SHELL_GIT_URL must be set before install can proceed 
      return 1
    fi
    # TODO have a cross distro package install
    module_load distro
    set_distro
 
    [[ ! $(command -v git) ]] && echo git must be installed first && $INSTALL_PKGS git
    # TODO, avoid which in all scripts.  or put which in environment if not on machine
    [[ ! $(command -v which) ]] && echo 'which' must be installed first && $INSTALL_PKGS which
    echo $USER, $EUID
    [[ ! $EUID -eq 0 ]] && { echo ERROR script must be run as root; return 2; }
    echo I am ROOT, now running script
    echo UCI user: $1 
    # TODO make the repo and clone values dynamic or bundle current base on sending machine a archive
    mkdir -p /shell/base
    git clone $BASH_SHELL_GIT_URL/shell-base.git /shell/base
    chown -R ${1:-$1000}:${1:-1000} /shell
    chmod -R +r /shell

    /bin/bash /shell/base/install/install.sh ${1:-1000}

    # TODO now add BASH_SHELL_GIT_URL=$BASH_SHELL_GIT_URL to load directory
    echo "export BASH_SHELL_GIT_URL=$BASH_SHELL_GIT_URL" > $BASH_SHELL_BASE/load/ucishellgiturl
}

# # if script was executed then call the function
      ( return 0 2>/dev/null ) || install_shell_base $@


install_shell_host () {
  if [[ -d $BASH_SHELL_HOST/modules ]]; then
   echo appears that UCI shell host repo is already installed at $BASH_SHELL_HOST 
   echo upgrade instead using: 'module_load uci-shell-install; update_shell_host'
   return 1
  fi
  if [[ ! $BASH_SHELL_GIT_URL ]]; then
    echo BASH_SHELL_GIT_URL must be set before install can proceed 
    return 1
  fi
  export BASH_SHELL_HOST=$(dirname $BASH_SHELL_BASE)/host
  if mkdir -p $BASH_SHELL_HOST; then
    if git clone $BASH_SHELL_GIT_URL/shell-host.git $BASH_SHELL_HOST; then
      chown -R ${1:-$USER}:${1:-$USER} $BASH_SHELL_HOST
      chmod -R +r $BASH_SHELL_HOST
      export BASH_SHELL_HOSTNAME=$(dirname $BASH_SHELL_BASE)/$(hostnamectl hostname)
      mkdir -p $BASH_SHELL_HOSTNAME/load
      echo note: use $BASH_SHELL_HOSTNAME/load  directory to load modules and other stuff from  at prompt.
    fi  
  fi  
  bash $BASH_SHELL_HOST/distro/distro.inst 
}

install_shell_network () {
  if [[ -d $BASH_SHELL_NETWORK/modules ]]; then
   echo appears that UCI shell network repo is already installed at $BASH_SHELL_NETWORK 
   echo upgrade instead using: 'module_load uci-shell-install; update_shell_network'
   return 1
  fi
  if [[ ! $BASH_SHELL_GIT_URL ]]; then
    echo BASH_SHELL_GIT_URL must be set before install can proceed 
    return 1
  fi  
  export BASH_SHELL_NETWORK=$(dirname $BASH_SHELL_BASE)/network
  if mkdir -p $BASH_SHELL_NETWORK; then
    if git clone $BASH_SHELL_GIT_URL/shell-network.git $BASH_SHELL_NETWORK; then
      chown -R ${1:-$USER}:${1:-$USER} $BASH_SHELL_NETWORK
      chmod -R +r $BASH_SHELL_NETWORK
      fi  
  fi
}

update_shell_base () {
  cd $BASH_SHELL_BASE || { echo not directory $BASH_SHELL_ANY_HOST; return 2; }
  if [[ ! $BASH_SHELL_GIT_REMOTE ]]; then
    echo WARNING: BASH_SHELL_GIT_REMOTE is not set will use \'origin\' 
  fi
  git pull ${BASH_SHELL_GIT_REMOTEE:-origin} master
  }

update_shell_host () {
  [[ ! -d $BASH_SHELL_HOST/modules ]] && echo uci shell host repo not installed, run install_shell_host first && return 1 
  cd $BASH_SHELL_HOST || { echo not directory $BASH_SHELL_HOST; return 2; }
  git pull ${BASH_SHELL_GIT_REMOTE:-origin} master
  }

update_shell_network () {
   [[ ! -d $BASH_SHELL_NETWORK/modules ]] && echo uci shell host repo not installed, run install_shell_host first && return 1 
  cd $BASH_SHELL_NETWORK || { echo not directory $BASH_SHELL_NETWORK; return 2; }
  git pull ${BASH_SHELL_GIT_REMOTE:-origin} master
  }