#!/bin/bash

# Message
# -----------------------------------
function say()
{
    echo "TALER: " "$@"
}

# Check user if the user is root
# -----------------------------------
function check_user()
{

    if [ $(whoami) != "root" ]; then
        say "Please run this script as root"
        exit 1
    fi
}

# Asks several questions to the user
# -----------------------------------
function ask()
{

# DOMAIN_NAME

if [ $1 == "DOMAIN_NAME" ]; then
    read -p "Enter the domain name: " DOMAIN_NAME
fi

# ENABLE_TLS

if [ $1 == "ENABLE_TLS" ]; then
    read -p "Use TLS? (y/n): " ENABLE_TLS
fi

# CURRENCY

if [ $1 == "CURRENCY" ]; then
    read -p "Enter the name of the currency (e.g. 'EUR'):" CURRENCY
fi

# BANK_NAME

if [ $1 == "BANK_NAME" ]; then
    read -p "Enter the human-readable name of the bank (e.g. 'Taler Bank'): " BANK_NAME

fi

# DO_OFFLINE

if [ $1 == "DO_OFFLINE" ]; then
    read -p "Run taler-exchange offline? (y/n): " DO_OFFLINE
fi

# MASTER_PUBLIC_KEY

if [ $1 == "MASTER_PUBLIC_KEY" ]; then
    if [ $2 == "DO_OFFLINE" ]  && [ $DO_OFFLINE == 'n' ]; then
        read -p "Enter the exchange-offline master public key: " MASTER_PUBLIC_KEY
    fi
fi

# SANDBOX_ADMIN_PASSWORD

if [ $1 == "SANDBOX_ADMIN_PASSWORD" ]; then
    read -s -p "Enter the admin password for the bank: " SANDBOX_ADMIN_PASSWORD
    echo "" # force new line
fi

# SANDBOX_EXCHANGE_PASSWORD

if [ $1 == "SANDBOX_EXCHANGE_PASSWORD" ]; then
    SANDBOX_EXCHANGE_PASSWORD=`uuidgen`

fi


# NEXUS_EXCHANGE_PASSWORD

if [ $1 == "NEXUS_EXCHANGE_PASSWORD" ]; then
    NEXUS_EXCHANGE_PASSWORD=`uuidgen`
fi

}



function check_nexus_exchange ()
{

if test -z ${LIBEUFIN_NEXUS_USERNAME:-}
then
    say "Failure: LIBEUFIN_NEXUS_USERNAME not set"
    exit 1
fi

if test -z ${NEXUS_EXCHANGE_PASSWORD:-}
then
    say "Failure: NEXUS_EXCHANGE_PASSWORD not set"
    exit 1
fi

if test -z ${EXCHANGE_IBAN:-}
then
    say "Failure: EXCHANGE_IBAN not set"
    exit 1
fi
if test -z ${EXCHANGE_PAYTO:-}
then
    say "Failure: EXCHANGE_PAYTO not set"
    exit 1
fi

}


# Ask about whether use TLS or not
# -----------------------------------

function ask_tls()
{

read -p "Use TLS? (y/n): " ENABLE_TLS

if test ${ENABLE_TLS} == "y"
then
    PROTO="https"
else
    PROTO="http"
fi
}

# Check network
# -----------------------------------

check_dns()
{

ping -c1 exchange.${DOMAIN_NAME} # &> /dev/null


if test 0 != $?
then
    say "Could not ping TO exchange.${DOMAIN_NAME}."
    say "Please make sure your DNS/network are working."
    exit 1
fi

}