A script to automatically claim staking rewards and re-stake them

redelegate-evmos-all.sh

#!/bin/bash -e

if [[ "$1" == "-h" || "$1" == "" ]]
then
	echo "Usage: $0 <validator-address> [-y]"
	exit
fi

# Arguments
VALIDATOR=$1
YES=$2

# Global parameters
REWARDS_THRESHOLD=10000000
RPC_NODE="http://localhost:26657"
CHAIN_ID="evmos_9000-1"

# Query Wallets
addresses=$(evmosd keys list --output=json | jq -r '.[].address')
echo "Address List:"
for i in $addresses; do
    echo "$i"
done

echo "Start Restake all accounts..."

for WALLET in $addresses; do
    echo "Wallet is: $WALLET"
    BALANCE=$(evmosd q bank balances $WALLET --chain-id $CHAIN_ID --node $RPC_NODE --output json | jq -r '.balances[] | select(.denom == "aphoton") .amount')
    echo "Balance is: $BALANCE"
    
    REWARDS=$(evmosd q distribution rewards $WALLET --chain-id $CHAIN_ID --node $RPC_NODE --output json)
    REWARDS_AMOUNT=$(echo $REWARDS | jq -r '.total[] | select(.denom == "aphoton") .amount|tonumber')
    echo "There are $REWARDS_AMOUNT aphoton rewards across $(echo $REWARDS | jq -r '.rewards | length') validators to be claimed."
    
    if awk 'BEGIN {exit !('$REWARDS_AMOUNT' >= '$REWARDS_THRESHOLD')}'
    then
    	echo "Claiming rewards..."
    	evmosd --chain-id $CHAIN_ID tx distribution withdraw-all-rewards \
	        --from $WALLET \
	        --gas=500000 --gas-prices="0aphoton" \
	        --chain-id $CHAIN_ID \
	        --node $RPC_NODE $YES
    
    	NEW_BALANCE=$(evmosd q bank balances $WALLET --chain-id $CHAIN_ID --node $RPC_NODE --output json | jq -r '.balances[] | select(.denom == "aphoton") .amount')
    	while awk 'BEGIN {exit !('$NEW_BALANCE' <= '$BALANCE')}'
    	do
		    echo "Waiting for rewards to appear..."
		    sleep 2
		    NEW_BALANCE=$(evmosd q bank balances $WALLET --chain-id $CHAIN_ID --node $RPC_NODE --output json | jq -r '.balances[] | select(.denom == "aphoton") .amount')
	    done
    
    	BALANCE=$NEW_BALANCE
    	echo "New balance is: $BALANCE"
    
    	STAKING_AMOUNT=$(expr $BALANCE - 10000000)
    	echo "Amount to stake: $STAKING_AMOUNT"
    	evmosd --chain-id $CHAIN_ID tx staking delegate \
		    $VALIDATOR \
		    "${STAKING_AMOUNT}aphoton" \
		    --from $WALLET \
		    --gas=500000 --gas-prices="0aphoton" \
		    --node $RPC_NODE $YES
	    echo "Done!"
    else
    	echo "Need at least $REWARDS_THRESHOLD aphoton to claim, skipping claim..."
    fi
done