purge

# Copyright (C) 2019 - 2020 Maker Ecosystem Growth Holdings, INC.
#
# 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 <https://www.gnu.org/licenses/>.

#!/usr/bin/env bash
set -ex

export ETH_GAS=${ETH_GAS:-"500000"}
export ETH_FROM=${ETH_FROM:-$(seth rpc eth_coinbase)}
NETWORK=$(seth chain)

# shellcheck source=/dev/null
. ./"$NETWORK"-pairs

ETH_NONCE=$(seth nonce "$ETH_FROM")

remove_offers () {
    OFFER_ID="$1"
    while [  "$(seth --to-dec "$OFFER_ID")" -gt 0 ]; do
    NEXT_OFFER_ID=$(seth call "$OTC" "getWorseOffer(uint256)(uint256)" "$OFFER_ID")
    echo "Deleting offer $(seth --to-dec "$OFFER_ID")..."
    ETH_NONCE=$((ETH_NONCE)) seth send "$OTC" "cancel(uint256)" "$OFFER_ID" --async
    ETH_NONCE=$((ETH_NONCE + 1))
    OFFER_ID="$NEXT_OFFER_ID"
    done
}

for PAIR in $ALL_PAIRS; do
    ADDR1=$(echo "$PAIR" | cut -f1 -d-)
    ADDR2=$(echo "$PAIR" | cut -f2 -d-)

    OFFER_ID=$(seth call "$OTC" "getBestOffer(address,address)(uint256)" "$ADDR1" "$ADDR2")
    remove_offers "$OFFER_ID"

    OFFER_ID=$(seth call "$OTC" "getBestOffer(address,address)(uint256)" "$ADDR2" "$ADDR1")
    remove_offers "$OFFER_ID"
done