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use crate::types::{Bytes, H256, U256};
use serde::{Deserialize, Serialize, Serializer};
use std::collections::BTreeMap;

// https://github.com/ethereum/go-ethereum/blob/a9ef135e2dd53682d106c6a2aede9187026cc1de/eth/tracers/logger/logger.go#L406-L411
#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
pub struct GethTrace {
    pub failed: bool,
    pub gas: u64,
    #[serde(serialize_with = "serialize_bytes", rename = "returnValue")]
    pub return_value: Bytes,
    #[serde(rename = "structLogs")]
    pub struct_logs: Vec<StructLog>,
}

// https://github.com/ethereum/go-ethereum/blob/366d2169fbc0e0f803b68c042b77b6b480836dbc/eth/tracers/logger/logger.go#L413-L426
#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
pub struct StructLog {
    pub depth: u64,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub error: Option<String>,
    pub gas: u64,
    #[serde(rename = "gasCost")]
    pub gas_cost: u64,
    /// ref <https://github.com/ethereum/go-ethereum/blob/366d2169fbc0e0f803b68c042b77b6b480836dbc/eth/tracers/logger/logger.go#L450-L452>
    #[serde(skip_serializing_if = "Option::is_none")]
    pub memory: Option<Vec<String>>,
    pub op: String,
    pub pc: u64,
    #[serde(rename = "refund", skip_serializing_if = "Option::is_none")]
    pub refund_counter: Option<u64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub stack: Option<Vec<U256>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub storage: Option<BTreeMap<H256, H256>>,
}

/// Bindings for additional `debug_traceTransaction` options
///
/// See <https://geth.ethereum.org/docs/rpc/ns-debug#debug_tracetransaction>
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
#[serde(rename_all = "camelCase")]
pub struct GethDebugTracingOptions {
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub disable_storage: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub disable_stack: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub enable_memory: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub enable_return_data: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub tracer: Option<String>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub timeout: Option<String>,
}

fn serialize_bytes<S, T>(x: T, s: S) -> Result<S::Ok, S::Error>
where
    S: Serializer,
    T: AsRef<[u8]>,
{
    s.serialize_str(&hex::encode(x.as_ref()))
}