#!/bin/bash
#
# Register an existing hydra
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Command line arguments
BASEDIR="$1"
REMOTE="$2"
#DEPENDENCIES="keyringer"

# Validation
if [ -z "$BASEDIR" ]; then
  echo "Usage: hydra [hydra] init <path> [remote]"
  exit 1
elif grep -q -e "^$HYDRA=" $CONFIG &> /dev/null; then
  echo "Hydra $HYDRA already registered"
  exit 1
elif [ -d "$BASEDIR" ]; then
  echo "Folder $BASEDIR already exists, maybe you want to run 'hydra $HYDRA register'?"
  exit 1
fi

# Check for dependencies
#for dependency in $DEPENDENCIES; do
#  if ! which $dependency &> /dev/null; then
#    echo "Please install $dependency"
#    exit 1
#  fi
#done

# Clone configuration repository or setup a new hydra
if [ ! -z "$REMOTE" ]; then
  # Try to clone the superproject first
  if git ls-remote $REMOTE &> /dev/null; then
    git clone $REMOTE $BASEDIR
  fi

  (
    mkdir -p $BASEDIR
    cd $BASEDIR

    # Initialize only the required repositories
    for repo in $BASEREPOS; do
      if [ -e "$HYDRA_FOLDER/config/repository/ignore/$repo" ]; then
        continue
      fi

      # There is a superproject, so we try to initialize submodules
      if [ -e '.gitmodules' ] && git submodule | grep -q " $repo$"; then
        git submodule update --init --recursive $repo
      else
        # No superproject, so we clone each repository
        REMOTE="`echo $REMOTE | sed -e 's|/$||'`"

        if git ls-remote ${REMOTE}/$repo &> /dev/null; then
          git clone --recursive ${REMOTE}/$repo `basename $repo .git`
        else
          echo "Skipping unavailable ${REMOTE}/$repo..."
        fi
      fi
    done
  )
else
  # Create the superproject
  mkdir -p $BASEDIR

  # Optional: version control in the superproject
  #hydra_git_init $BASEDIR

  # Create config repository
  if [ ! -d "$BASEDIR/config" ]; then
    # Setup repository from template
    cp -r $APP_BASE/share/config $BASEDIR/config
    hydra_git_init $BASEDIR/config
  fi

  # Create doc repository
  if [ ! -d "$BASEDIR/doc" ]; then
    mkdir -p "$BASEDIR/doc"
    echo "Use this repository for notes about Hydra $HYDRA" > $BASEDIR/doc/README.md
    hydra_git_init $BASEDIR/doc
  fi

  # Create bootless repository
  if [ ! -d "$BASEDIR/bootless" ]; then
    echo "Initializing bootless repository..."
    hydra $HYDRA bootless init
  fi

  # Create puppet repository
  if [ ! -d "$BASEDIR/puppet" ]; then
    echo "Cloning initial puppet repository..."
    git clone https://git.fluxo.info/puppet-bootstrap $BASEDIR/puppet

    # Config puppet
    echo "Configuring puppet repository..."
    hydra_bootstrap_config $BASEDIR/puppet
  fi

  # Create ansible repository
  mkdir -p $BASEDIR/ansible
  cp -r $APP_BASE/share/ansible $BASEDIR/ansible
  hydra_git_init $BASEDIR/ansible
fi

# Reparse basedir to force absolute folder
BASEDIR="`cd $BASEDIR && pwd`"

# Add entry
echo "Registering hydra $HYDRA..."
chmod 700 $BASEDIR
echo "$HYDRA=\"$BASEDIR\"" >> $CONFIG

#cat<<-EOF
#Hydra suite relies heavilly in the address in the form of "admin.example.org"
#as the repository server which hosts configuration.
#
#So make sure you have the following in your ~/.ssh/config:
#
#  Host admin.example.org
#    HostName server.example.org
#    Port 22
#
#Replace HostName by the address of the git repository server
#and Port by it's SSH port.
#
#While HostName and Port might change in the future if you move your
#repository for another server, having a fixed alias helps to keep
#your git remotes always updated.
#EOF
#
## Prompt
#echo "Press any key to continue, Ctrl-C to abort."
#read response

# Sync repositories
#hydra $HYDRA sync