#!/bin/bash

# @author Marcello Stanisci
# @brief Creates the directories hierarchy under $HOME/shared-data/.
#        Note: shared-data/ must already exist and give execute
#        permission to the group (test|demo).  Also note that any
#        program that creates files must set perms by its own!

set -eu

if test -z $TALER_ENV_NAME; then
  echo Please run 'source ~/activate' first.
  exit 1
fi

if ! test -e $HOME/.config/taler.conf; then
  echo "Please generate config first (taler-deployment-config-generate)."
  exit 1
fi

TALER_DATA=$(taler-config -s paths -o taler_deployment_data -f)

# Check if shared-data/ is clean.
if test -e $TALER_DATA/hier.lock; then
  echo "$TALER_DATA locked, exiting"
  exit 0
fi

# Check if it's writeable.
if ! test -w $TALER_DATA; then
  echo "Can't write under $TALER_DATA, please adjust permissions"
  exit 0
fi

declare -A TALER_DIRS=(
  [MERCHANT_WIRE]=$(dirname $(taler-config -s account-merchant -o wire_response -f))
  [MERCHANT]=$(dirname $(taler-config -s instance-default -o keyfile -f))
  
  [EXCHANGE_WIREFEES]=$(taler-config -s exchangedb -o wirefee_base_dir -f)
  [EXCHANGE_AUDITOR_REQUEST]=$(taler-config -s exchangedb -o auditor_inputs -f)
  [EXCHANGE_WIRE]=$(basename $(taler-config -s account-1 -o wire_response -f))
  [EXCHANGE_OFFLINE_KEYS]=$(dirname $(taler-config -s exchange -o master_priv_file -f))
  [EXCHANGE_LIVE_KEYS]=$(taler-config -s -o keydir -f)
  [EXCHANGE_AUDITORS]=$(taler-config -s exchangedb -o auditor_base_dir -f)
  
  [AUDITOR_REPORTS]=$(taler-config -s auditor -o reports -f)
  [AUDITOR_OFFLINE_KEYS]=$(dirname $(taler-config -s auditor -o auditor_priv_file -f))
)

for dir in ${TALER_DIRS[@]}; do

  ##
  # Ineffective for exchange's and auditor's privs paths
  # as those were created when the configuration was generated
  # (recall: this script is very dependent on taler.conf!)
  mkdir -p $dir
done
  
# All dirs will give only the group RWX perms.
touch $TALER_DATA/hier.lock