#!/bin/bash
# This file is in the public domain.

set -eu

function clean_wallet() {
    rm -f "${WALLET_DB}"
    exit_cleanup
}


# Replace with 0 for nexus...
USE_FAKEBANK=1
if [ 1 = "$USE_FAKEBANK" ]
then
    ACCOUNT="exchange-account-2"
    BANK_FLAGS="-f -d x-taler-bank -u $ACCOUNT"
    BANK_URL="http://localhost:8082/"
else
    ACCOUNT="exchange-account-1"
    BANK_FLAGS="-ns -d iban -u $ACCOUNT"
    BANK_URL="http://localhost:8082/"
    echo -n "Testing for libeufin-bank"
    libeufin-bank --help >/dev/null </dev/null || exit_skip " MISSING"
    echo " FOUND"

fi

. setup.sh

echo -n "Testing for taler-harness"
taler-harness --help >/dev/null </dev/null || exit_skip " MISSING"
echo " FOUND"

# Launch exchange, merchant and bank.
setup -c "test_template.conf" \
      -r "merchant-exchange-default" \
      -em \
      $BANK_FLAGS
LAST_RESPONSE=$(mktemp -p "${TMPDIR:-/tmp}" test_response.conf-XXXXXX)
CONF="test_template.conf.edited"
WALLET_DB=$(mktemp -p "${TMPDIR:-/tmp}" test_wallet.json-XXXXXX)
EXCHANGE_URL="http://localhost:8081/"

# Install cleanup handler (except for kill -9)
trap clean_wallet EXIT

echo -n "First prepare wallet with coins ..."
rm -f "$WALLET_DB"
taler-wallet-cli \
    --no-throttle \
    --wallet-db="$WALLET_DB" \
    api \
    --expect-success 'withdrawTestBalance' \
  "$(jq -n '
    {
        amount: "TESTKUDOS:99",
        corebankApiBaseUrl: $BANK_URL,
        exchangeBaseUrl: $EXCHANGE_URL
    }' \
    --arg BANK_URL "${BANK_URL}" \
    --arg EXCHANGE_URL "$EXCHANGE_URL"
  )" 2>wallet-withdraw-1.err >wallet-withdraw-1.out
echo -n "."
# FIXME-MS: add logic to have nexus check immediately here.
# sleep 10
echo -n "."
# NOTE: once libeufin can do long-polling, we should
# be able to reduce the delay here and run wirewatch
# always in the background via setup
taler-exchange-wirewatch \
    -a "$ACCOUNT" \
    -L "INFO" \
    -c "$CONF" \
    -t &> taler-exchange-wirewatch.out
echo -n "."
timeout 60 taler-wallet-cli \
    --wallet-db="$WALLET_DB" \
    run-until-done \
    2>wallet-withdraw-finish-1.err \
    >wallet-withdraw-finish-1.out
echo " OK"

CURRENCY_COUNT=$(taler-wallet-cli --wallet-db="$WALLET_DB" balance | jq '.balances|length')
if [ "$CURRENCY_COUNT" = "0" ]
then
    exit_fail "Expected least one currency, withdrawal failed. check log."
fi

#
# CREATE INSTANCE FOR TESTING
#


echo -n "Configuring merchant instance ..."

STATUS=$(curl -H "Content-Type: application/json" -X POST \
    -H 'Authorization: Bearer secret-token:super_secret' \
    http://localhost:9966/management/instances \
    -d '{"auth":{"method":"external"},"id":"admin","name":"default","user_type":"business","address":{},"jurisdiction":{},"use_stefan":true,"default_wire_transfer_delay":{"d_us" : 50000000000},"default_pay_delay":{"d_us": 60000000000}}' \
    -w "%{http_code}" -s -o /dev/null)

if [ "$STATUS" != "204" ]
then
    exit_fail "Expected '204 No content' response. Got instead $STATUS"
fi
echo "Ok"

echo -n "Configuring merchant account ..."

if [ 1 = "$USE_FAKEBANK" ]
then
    FORTYTHREE="payto://x-taler-bank/localhost/fortythree?receiver-name=fortythree"
else
    FORTYTHREE=$(get_payto_uri fortythree x)
fi
# create with 2 bank account addresses
STATUS=$(curl -H "Content-Type: application/json" -X POST \
    -H 'Authorization: Bearer secret-token:super_secret' \
    http://localhost:9966/private/accounts \
    -d '{"payto_uri":"'"$FORTYTHREE"'"}' \
    -w "%{http_code}" -s -o /dev/null)

if [ "$STATUS" != "200" ]
then
    exit_fail "Expected '200 OK' response. Got instead $STATUS"
fi
STATUS=$(curl -H "Content-Type: application/json" -X POST \
    -H 'Authorization: Bearer secret-token:super_secret' \
    http://localhost:9966/private/accounts \
    -d '{"payto_uri":"payto://iban/SANDBOXX/DE270744?receiver-name=Forty+Four"}' \
    -w "%{http_code}" -s -o /dev/null)

if [ "$STATUS" != "200" ]
then
    exit_fail "Expected '200 OK' response. Got instead $STATUS"
fi

echo "Ok"


echo -n "Get accounts..."
STATUS=$(curl http://localhost:9966/private/accounts \
    -w "%{http_code}" -s -o "$LAST_RESPONSE")
PAY_URI=$(jq -r .accounts[1].payto_uri < "$LAST_RESPONSE")
H_WIRE=$(jq -r .accounts[1].h_wire < "$LAST_RESPONSE")
if [ "$PAY_URI" != "payto://iban/SANDBOXX/DE270744?receiver-name=Forty+Four" ]
then
    cat "$LAST_RESPONSE" >&2
    exit_fail "Expected second payto URI. Got $PAY_URI"
fi
echo "OK"

# remove one account address
echo -n "Deleting one account ..."
STATUS=$(curl -H "Content-Type: application/json" -X PATCH \
    -H 'Authorization: Bearer secret-token:super_secret' \
    "http://localhost:9966/private/accounts/${H_WIRE}" \
    -X DELETE \
    -w "%{http_code}" -s -o /dev/null)

if [ "$STATUS" != "204" ]
then
    exit_fail "Expected '204 No content' for deletion of ${H_WIRE}. Got instead: $STATUS"
fi
echo "OK"

# CREATE ORDER AND SELL IT

echo -n "Creating order to be paid..."
STATUS=$(curl 'http://localhost:9966/private/orders' \
    -d '{"refund_delay":{"d_us":0},"order":{"amount":"TESTKUDOS:1","summary":"payme"}}' \
    -w "%{http_code}" -s -o "$LAST_RESPONSE")

if [ "$STATUS" != "200" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected 200, order created. got: $STATUS"
fi

ORDER_ID=$(jq -e -r .order_id < "$LAST_RESPONSE")
TOKEN=$(jq -e -r .token < "$LAST_RESPONSE")

STATUS=$(curl "http://localhost:9966/private/orders/${ORDER_ID}" \
    -w "%{http_code}" -s -o "$LAST_RESPONSE")

if [ "$STATUS" != "200" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected 200, getting order info. got: $STATUS"
fi

PAY_URL=$(jq -e -r .taler_pay_uri < "$LAST_RESPONSE")

echo "OK"

NOW=$(date +%s)

echo -n "Pay first order ${PAY_URL} ..."
taler-wallet-cli \
    --no-throttle \
    --wallet-db="$WALLET_DB" \
    handle-uri "${PAY_URL}" \
    -y 2> wallet-pay1.err > wallet-pay1.log
timeout 60 taler-wallet-cli \
    --no-throttle \
    --wallet-db="$WALLET_DB" \
    run-until-done 2> wallet-finish-pay1.err > wallet-finish-pay1.log
NOW2=$(date +%s)
echo " OK (took $(( NOW2 - NOW )) secs )"

STATUS=$(curl "http://localhost:9966/private/orders/${ORDER_ID}" \
    -w "%{http_code}" -s -o "$LAST_RESPONSE")

if [ "$STATUS" != "200" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected 200, after pay. got: $STATUS"
fi

ORDER_STATUS=$(jq -r .order_status < "$LAST_RESPONSE")

if [ "$ORDER_STATUS" != "paid" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Order status should be 'paid'. got: $ORDER_STATUS"
fi

#
# WIRE TRANSFER TO MERCHANT AND NOTIFY BACKEND
#

# PAY_DEADLINE=$(jq -r .contract_terms.pay_deadline.t_s < "$LAST_RESPONSE")
WIRE_DEADLINE=$(jq -r .contract_terms.wire_transfer_deadline.t_s < "$LAST_RESPONSE")

NOW=$(date +%s)

TO_SLEEP=$((1200 + WIRE_DEADLINE - NOW ))
echo "Waiting $TO_SLEEP secs for wire transfer"

echo -n "Call taler-exchange-aggregator ..."
taler-exchange-aggregator \
    -y \
    -c "$CONF" \
    -T "${TO_SLEEP}"000000 \
    -t \
    -L INFO &> aggregator.log
echo " DONE"
echo -n "Call taler-exchange-transfer ..."
taler-exchange-transfer \
    -c "$CONF" \
    -t \
    -L INFO &> transfer.log
echo " DONE"
echo -n "Give time to Nexus to route the payment to Sandbox..."
# FIXME: trigger immediate update at nexus
# NOTE: once libeufin can do long-polling, we should
# be able to reduce the delay here and run aggregator/transfer
# always in the background via setup
sleep 3
echo " DONE"

echo -n "Running taler-merchant-depositcheck ..."
set -e
taler-merchant-depositcheck \
    -L INFO \
    -c "$CONF" \
    -T "${TO_SLEEP}"000000 \
    -t &> taler-merchant-depositcheck.log
echo " OK"

echo -n "Running taler-merchant-reconciliation ..."
set -e
taler-merchant-reconciliation \
    -L INFO \
    -c "$CONF" \
    -T "${TO_SLEEP}"000000 \
    -t &> taler-merchant-reconciliation.log
echo " OK"

bash

echo -n "Fetching wire transfers ..."

STATUS=$(curl 'http://localhost:9966/private/transfers' \
    -w "%{http_code}" -s -o "$LAST_RESPONSE")

if [ "$STATUS" != "200" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected response 200 Ok. got: $STATUS"
fi

TRANSFERS_LIST_SIZE=$(jq -r '.transfers | length' < "$LAST_RESPONSE")

if [ "$TRANSFERS_LIST_SIZE" != "1" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected 1 entry in transfer list. Got: $TRANSFERS_LIST_SIZE"
fi

echo "OK"

echo -n "Checking order status ..."
STATUS=$(curl "http://localhost:9966/private/orders/${ORDER_ID}?transfer=YES" \
    -w "%{http_code}" -s -o "$LAST_RESPONSE")
if [ "$STATUS" != "200" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected 200, after order inquiry. got: $STATUS"
fi
DEPOSIT_TOTAL=$(jq -r .deposit_total < "$LAST_RESPONSE")
if [ "$DEPOSIT_TOTAL" == "TESTKUDOS:0" ]
then
    jq . < "$LAST_RESPONSE"
    exit_fail "Expected non-zero deposit total. got: $DEPOSIT_TOTAL"
fi
echo " OK"


exit 0