flap_checker.sh

# ./flap_checker.sh 1 10 1900
# will check flaps 1 through 9 if they are selling at more than 6% deviation from 1900

ID=$1
END_ID=$2
FAIR_PRICE=$3
while [[ ID -ne END_ID ]]
do
    ret=`seth call 0xC4269cC7acDEdC3794b221aA4D9205F564e27f0d "bids(uint256)(uint256,uint256,address,uint48,uint48)" $ID`
    a=($(echo "$ret" | tr ',' '\n'))
    BID="${a[0]}"
    if [[ $BID -ne 0 ]]; then
        PRICE=`bc <<< "scale=2;30000000000000000000000 / ${BID}"`
        RATIO=`bc <<< "scale=4;${PRICE} / ${FAIR_PRICE}"`
        IS_PRICE_BAD=$(bc <<< "$RATIO > 1.06")
        if [[ $IS_PRICE_BAD -eq 1 ]]; then
            FAIR_BID=`bc <<< "0.94 * (30000000000000000000000 / $FAIR_PRICE)"`
            echo "$ID BAD PRICE -- RATIO: $RATIO -- FAIR_BID: $FAIR_BID"
        fi
    fi

    ID=$(( $ID + 1))
done