#!/bin/bash

# General script for RIN RPC calls
# Usage: ./rpc_call.sh <method> [param1] [param2] ... [rpc_user] [rpc_password] [rpc_host] [rpc_port]

if [ $# -lt 1 ]; then
    echo "Usage: $0 <method> [param1] [param2] ... [rpc_user] [rpc_password] [rpc_host] [rpc_port]"
    echo "Examples:"
    echo "  $0 getinfo"
    echo "  $0 getnewaddress myaccount"
    echo "  $0 listtransactions \"*\" 10"
    echo "  $0 gettransaction txid"
    
    exit 1
fi

METHOD=$1
shift

# Parse parameters - last 4 optional args are RPC connection details
PARAMS=()
RPC_USER="rinrpc"
RPC_PASSWORD="password"
RPC_HOST="localhost"
RPC_PORT="8332"

# Check if last 4 args are RPC connection details
if [ $# -ge 4 ]; then
    # Assume last 4 are RPC details
    RPC_PORT="${@: -1}"
    RPC_HOST="${@: -2}"
    RPC_PASSWORD="${@: -3}"
    RPC_USER="${@: -4}"
    PARAMS=("${@:1:$#-4}")
else
    PARAMS=("$@")
fi

# Build JSON parameters array
PARAMS_JSON=""
if [ ${#PARAMS[@]} -gt 0 ]; then
    PARAMS_JSON="["
    for param in "${PARAMS[@]}"; do
        # Try to parse as number, otherwise treat as string
        if [[ $param =~ ^[0-9]+(\.[0-9]+)?$ ]]; then
            PARAMS_JSON="$PARAMS_JSON$param,"
        else
            PARAMS_JSON="$PARAMS_JSON\"$param\","
        fi
    done
    PARAMS_JSON="${PARAMS_JSON%,}]"
else
    PARAMS_JSON="[]"
fi

# JSON-RPC request
RPC_REQUEST='{
  "jsonrpc": "2.0",
  "id": "'"$METHOD"'",
  "method": "'"$METHOD"'",
  "params": '"$PARAMS_JSON"'
}'

echo "Calling RPC method: $METHOD"
echo "Parameters: $PARAMS_JSON"

# Make the RPC call
RESPONSE=$(curl -s -u "$RPC_USER:$RPC_PASSWORD" \
    -H "Content-Type: application/json" \
    -d "$RPC_REQUEST" \
    "http://$RPC_HOST:$RPC_PORT")

# Check for errors
ERROR=$(echo "$RESPONSE" | jq -r '.error' 2>/dev/null)
if [ "$ERROR" != "null" ] && [ -n "$ERROR" ]; then
    echo "Error: $(echo "$ERROR" | jq -r '.message')"
    exit 1
fi

# Display result
RESULT=$(echo "$RESPONSE" | jq -r '.result' 2>/dev/null)
if [ "$RESULT" != "null" ]; then
    echo "Result:"
    echo "$RESPONSE" | jq '.result'
else
    echo "Response:"
    echo "$RESPONSE"
fi