#!/bin/bash

usage() {
    cat <<EOF
Usage :

    On the host
        `basename $0` create-env PATH
            Create a dev environment into PATH
        `basename $0` run DOMAIN [VERSION]
            Run a vagrant or virtualbox vm
        # `basename $0` kill
        #     Kill all vagrant

    Inside the vm
        `basename $0` ip
            Give the ip of the guest container
        `basename $0` upgrade
            Upgrade the container
        `basename $0` use-git [PACKAGES [PACKAGES ...]]
            Use Git repositories from dev environment path
        `basename $0` self-update
            Update this script (`basename $0`)

PACKAGES :
    moulinette
    ssowat
    yunohost
    yunohost-admin

VERSION
    stable
    testing
    unstable
EOF
}

check_yunohost_vm() {
    if [ ! -d /etc/yunohost ]
    then
        echo "You need to install YunoHost first. Maybe you are not in a vm ?"
        exit 100;
    fi
}

packages=${@:2}
if [ "$#" = "1" ]; then
    packages=('moulinette' 'ssowat' 'yunohost' 'yunohost-admin')
fi

BASE_DIR=./

##################
## Help message ##
##################
if [ "$1" = "-h" ] || [ "$1" = "--help" ] || [ "$1" = "help" ]; then
    usage


######################################
## Create a development environment ##
######################################
elif [ "$1" = "create-env" ]; then
    set -x

    pwd=`pwd`

    if [ ! "$2" ]
    then
        echo "I need a destination folder to create the dev environement"
        exit 1
    fi

    [ -e "$2" ] || mkdir -p $2
    cd $2

    # Create apps & backup folder
    mkdir -p apps
    mkdir -p backup

    # Get YunoHost packages
    git clone -b unstable https://github.com/YunoHost/SSOwat ssowat
    git clone -b unstable https://github.com/YunoHost/yunohost-admin yunohost-admin
    git clone -b unstable https://github.com/YunoHost/yunohost yunohost
    git clone -b unstable https://github.com/YunoHost/moulinette moulinette

    # Get YunoHost Vagrantfile
    git clone -b opi-boxes https://github.com/YunoHost/Vagrantfile vagrant
    ln -s vagrant/Vagrantfile Vagrantfile

    # Get YunoHost dev tools
    git clone -b opi-boxes https://github.com/YunoHost/ynh-dev ynh-dev-tools
    cp ynh-dev-tools/ynh-dev ynh-dev


#################################
## Run a vm and give a prompt ##
#################################
elif [ "$1" = "run" ]; then

    DOMAIN=$2
    VERSION='stable'
    if [ "$#" = "3" ]; then
        VERSION=$3
    fi

    echo "Creating $DOMAIN virtual machine with YunoHost $VERSION version"
    echo ""

    # Get vagrant box info from version
    if [ "$VERSION" = "stable" ]; then
        BOX_NAME="opi/yunohost-stable"
        BOX_URL="http://build.yunohost.org/yunohost-stable8-builded.box"
        IP="192.168.33.80"
    elif [ "$VERSION" = "testing" ]; then
        BOX_NAME="opi/yunohost-testing"
        BOX_URL="http://build.yunohost.org/yunohost-testing8-builded.box"
        IP="192.168.33.81"
    elif [ "$VERSION" = "unstable" ]; then
        BOX_NAME="opi/yunohost-unstable"
        BOX_URL="http://build.yunohost.org/yunohost-unstable8-builded.box"
        IP="192.168.33.82"
    else
        echo "ERROR: Incorrect version '$VERSION'. See '$(basename $0) --help' for usage."
        exit 102
    fi

    # Download box if not available
    if ! vagrant box list | grep -qc $BOX_NAME ; then
        echo "Vagrant box '$BOX_NAME' is missing. Trying to download it"
        vagrant box add $BOX_NAME $BOX_URL --provider virtualbox
        echo ""
    fi

    # Run VM
    vagrant up $VERSION --provider virtualbox

    # Warn user about hosts file
    echo "/!\ Please add '$IP $DOMAIN' to your /etc/hosts file /!\\"
    echo ""

    # Log into the VM
    vagrant ssh $VERSION


#####################
## Kill running VM ##
#####################
elif [ "$1" = "kill" ]; then
    vagrant destroy


#######################
## Update current VM ##
#######################
elif [ "$1" = "upgrade" ]; then
    check_yunohost_vm
    sudo apt-get update
    sudo apt-get -y upgrade
    sudo apt-get -y dist-upgrade


#######################
## Get current VM IP ##
#######################
elif [ "$1" = "ip" ]; then
    check_yunohost_vm
    # Print IP
    ip=$(/bin/ip a | grep 'inet 192.168' | awk -F " " '{print $2}' | awk -F "/" '{print $1}')
    echo "IP: $ip"


###########################################
## Use Git version for YunoHost packages ##
###########################################
elif [ "$1" = "use-git" ]; then
    check_yunohost_vm
    VERSION=$2

    for i in ${!packages[@]}; do
        case ${packages[i]} in
            ssowat)
                echo "Using Git repository for SSOwat"
                # Remove current sources if not a symlink
                if [ ! -L '/usr/share/ssowat' ]; then
                    sudo rm -rf /usr/share/ssowat
                fi
                # Symlink from Git repository
                sudo ln -s -f /vagrant/ssowat /usr/share/ssowat
                echo "↳ Don't forget to do 'sudo yunohost app ssowatconf' when hacking SSOwat"
                echo ""
                ;;
            moulinette)
                echo "Warning, can't use Git repository for moulinette"
                echo ""
                ;;
            yunohost)
                echo "Using Git repository for yunohost"

                # bin
                if [ ! -L '/usr/bin/yunohost' ]; then sudo rm /usr/bin/yunohost; fi
                sudo ln -s -f /vagrant/yunohost/bin/yunohost /usr/bin/yunohost
                if [ ! -L '/usr/bin/yunohost-api' ]; then sudo rm /usr/bin/yunohost-api; fi
                sudo ln -s -f /vagrant/yunohost/bin/yunohost-api /usr/bin/yunohost-api

                # data
                if [ ! -L '/etc/bash_completion.d/yunohost' ]; then sudo rm /etc/bash_completion.d/yunohost; fi
                sudo ln -s -f /vagrant/yunohost/data/bash-completion.d/yunohost /etc/bash_completion.d/yunohost
                if [ ! -L '/usr/share/moulinette/actionsmap/yunohost.yml' ]; then sudo rm /usr/share/moulinette/actionsmap/yunohost.yml; fi
                sudo ln -s -f /vagrant/yunohost/data/actionsmap/yunohost.yml /usr/share/moulinette/actionsmap/yunohost.yml
                if [ ! -L '/usr/share/yunohost/hooks' ]; then sudo rm -rf /usr/share/yunohost/hooks; fi
                sudo ln -s -f /vagrant/yunohost/data/hooks /usr/share/yunohost/hooks
                if [ ! -L '/usr/share/yunohost/templates' ]; then sudo rm -rf /usr/share/yunohost/templates; fi
                sudo ln -s -f /vagrant/yunohost/data/templates /usr/share/yunohost/templates
                if [ ! -L '/usr/share/yunohost/helpers' ]; then sudo rm /usr/share/yunohost/helpers; fi
                sudo ln -s -f /vagrant/yunohost/data/helpers /usr/share/yunohost/helpers
                if [ ! -L '/usr/share/yunohost/helpers.d' ]; then sudo rm -rf /usr/share/yunohost/helpers.d; fi
                sudo ln -s -f /vagrant/yunohost/data/helpers.d /usr/share/yunohost/helpers.d
                if [ ! -L '/usr/share/yunohost/yunohost-config/moulinette' ]; then sudo rm -rf /usr/share/yunohost/yunohost-config/moulinette; fi
                sudo ln -s -f /vagrant/yunohost/data/other /usr/share/yunohost/yunohost-config/moulinette

                # debian
                if [ ! -L '/usr/share/pam-configs/mkhomedir' ]; then sudo rm /usr/share/pam-configs/mkhomedir; fi
                sudo ln -s -f /vagrant/yunohost/debian/conf/pam/mkhomedir /usr/share/pam-configs/mkhomedir

                # lib
                if [ ! -L '/usr/lib/metronome/modules/ldap.lib.lua' ]; then sudo rm /usr/lib/metronome/modules/ldap.lib.lua; fi
                sudo ln -s -f /vagrant/yunohost/lib/metronome/modules/ldap.lib.lua /usr/lib/metronome/modules/ldap.lib.lua
                if [ ! -L '/usr/lib/metronome/modules/mod_auth_ldap2.lua' ]; then sudo rm /usr/lib/metronome/modules/mod_auth_ldap2.lua; fi
                sudo ln -s -f /vagrant/yunohost/lib/metronome/modules/mod_auth_ldap2.lua /usr/lib/metronome/modules/mod_auth_ldap2.lua
                if [ ! -L '/usr/lib/metronome/modules/mod_legacyauth.lua' ]; then sudo rm /usr/lib/metronome/modules/mod_legacyauth.lua; fi
                sudo ln -s -f /vagrant/yunohost/lib/metronome/modules/mod_legacyauth.lua /usr/lib/metronome/modules/mod_legacyauth.lua
                if [ ! -L '/usr/lib/metronome/modules/mod_storage_ldap.lua' ]; then sudo rm /usr/lib/metronome/modules/mod_storage_ldap.lua; fi
                sudo ln -s -f /vagrant/yunohost/lib/metronome/modules/mod_storage_ldap.lua /usr/lib/metronome/modules/mod_storage_ldap.lua
                if [ ! -L '/usr/lib/metronome/modules/vcard.lib.lua' ]; then sudo rm /usr/lib/metronome/modules/vcard.lib.lua; fi
                sudo ln -s -f /vagrant/yunohost/lib/metronome/modules/vcard.lib.lua /usr/lib/metronome/modules/vcard.lib.lua

                # src
                if [ ! -L '/usr/lib/moulinette/yunohost' ]; then sudo rm -rf /usr/lib/moulinette/yunohost; fi
                sudo ln -s -f /vagrant/yunohost/src/yunohost /usr/lib/moulinette/yunohost

                # locales
                if [ ! -L '/usr/lib/moulinette/yunohost/locales' ]; then sudo rm -rf /usr/lib/moulinette/yunohost/locales; fi
                sudo ln -s -f /vagrant/yunohost/locales /usr/lib/moulinette/yunohost/locales

                # Remove actionsmap cache
                [ -e '/var/cache/moulinette/actionsmap/yunohost.pkl' ] && sudo rm /var/cache/moulinette/actionsmap/yunohost.pkl
                echo "↳ Don't forget to remove '/var/cache/moulinette/actionsmap/yunohost.pkl' cache when hacking yunohost"
                echo ""
                ;;
            yunohost-admin)

                # Install npm dependencies if needed
                which gulp > /dev/null
                if [ $? -eq 1 ]
                then
                    sudo apt-get -y install nodejs-legacy npm
                    cd /vagrant/yunohost-admin/src
                    sudo npm install
                    sudo npm install -g bower
                    sudo npm install -g gulp
                fi
                cd /vagrant/yunohost-admin/src
                sudo su -c "bower install" vagrant
                sudo su -c "gulp build --dev" vagrant

                echo "Using Git repository for yunohost-admin"
                # Remove current sources if not a symlink
                if [ ! -L '/usr/share/yunohost/admin' ]; then
                    sudo rm -rf /usr/share/yunohost/admin
                fi
                # Symlink from Git repository
                sudo ln -s -f /vagrant/yunohost-admin/src /usr/share/yunohost/admin

                sudo su -c "gulp watch --dev" vagrant

                ;;
        esac
    done


elif [ "$1" = "self-update" ]; then
    check_yunohost_vm
    cd /vagrant/ynh-dev-tools && git pull && cp ynh-dev ../ynh-dev

# Fallback to print usage
else
    usage
    exit 101
fi

exit 0;