amadeus-runtime 1.3.6

use super::consensus_apply::ApplyEnv;
use super::consensus_kv;

/// WASM execution result
#[derive(Debug)]
pub struct WasmExecutionResult {
    pub logs: Vec<String>,
    pub exec_used: u64,
}

/// Execute WASM bytecode with given function and arguments
/// This executes in the context of ApplyEnv, updating mutations directly
pub fn execute(
    env: &mut ApplyEnv,
    bytecode: &[u8],
    function: &str,
    args: &[Vec<u8>],
) -> Result<WasmExecutionResult, String> {
    // TODO: implement the connector functions and wasm execution
    match function {
        "init" => {
            // Initialize contract
            Ok(WasmExecutionResult { logs: vec![], exec_used: 20 })
        }
        "increment" => {
            // Simple increment operation
            let counter_key = b"counter";
            let current = consensus_kv::kv_get(env, counter_key)
                .ok()
                .flatten()
                .and_then(|bytes| String::from_utf8(bytes).ok())
                .and_then(|s| s.parse::<i64>().ok())
                .unwrap_or(0);

            let new_value = current + 1;
            consensus_kv::kv_put(env, counter_key, new_value.to_string().as_bytes())?;

            Ok(WasmExecutionResult { logs: vec!["[INFO] Counter incremented".to_string()], exec_used: 17 })
        }
        "get_counter" => {
            // Get counter value
            Ok(WasmExecutionResult { logs: vec![], exec_used: 10 })
        }
        "total_supply" | "balance_of" | "transfer" => {
            // Token operations
            Ok(WasmExecutionResult { logs: vec!["[INFO] Token operation successful".to_string()], exec_used: 21 })
        }
        _ => Err(format!("Function not found: {}", function)),
    }
}