syntax = "proto3";

import "google/protobuf/empty.proto";
import "web3/common.proto";
import "types/types.proto";

package web3;

// Call params

message LegacyCall {
  optional types.H160 from = 1;
  optional types.H160 to = 2;
  optional uint64 gas_limit = 3;
  optional uint64 gas_price = 4;
  optional types.H256 value = 5;
  optional bytes input = 6;
}

message AccessList { repeated AccessListItem access_list = 1; }

message EIP2930Call {
  optional types.H160 from = 1;
  optional types.H160 to = 2;
  optional uint64 gas_limit = 3;
  optional uint64 gas_price = 4;
  optional types.H256 value = 5;
  optional bytes input = 6;
  optional AccessList access_list = 7;
}

message EIP1559Call {
  optional types.H160 from = 1;
  optional types.H160 to = 2;
  optional uint64 gas_limit = 3;
  optional uint64 max_priority_fee_per_gas = 4;
  optional uint64 max_fee_per_gas = 5;
  optional types.H256 value = 6;
  optional bytes input = 7;
  optional AccessList access_list = 8;
}

message Call {
  oneof call {
    LegacyCall legacy = 1;
    EIP2930Call eip2930 = 2;
    EIP1559Call eip1559 = 3;
  }
}

message TraceKinds {
  bool trace = 1;
  bool vm_trace = 2;
  bool state_diff = 3;
}

message CallRequest {
  Call call = 1;
  TraceKinds kinds = 2;
}

message CallRequests {
  repeated CallRequest calls = 1;
  BlockId block_id = 2;
}

message TraceBlockRequest {
  BlockId id = 1;
  TraceKinds kinds = 2;
}

message TraceTransactionRequest {
  types.H256 hash = 1;
  TraceKinds kinds = 2;
}

message AddressSet { repeated types.H160 addresses = 1; }

enum FilterMode {
  Union = 0;
  Intersection = 1;
}

message FilterRequest {
  optional BlockId from_block = 1;
  optional BlockId to_block = 2;
  optional AddressSet from_addresses = 3;
  optional AddressSet to_addresses = 4;
  optional FilterMode mode = 5;
}

// Trace

enum CallType {
  CallTypeCall = 0;
  CallTypeCallCode = 1;
  CallTypeDelegateCall = 2;
  CallTypeStaticCall = 3;
}

message CallAction {
  types.H160 from = 1;
  types.H160 to = 2;
  types.H256 value = 3;
  uint64 gas = 4;
  bytes input = 5;
  optional CallType call_type = 6;
}

message CreateAction {
  types.H160 from = 1;
  types.H256 value = 2;
  uint64 gas = 3;
  bytes init = 4;
}

message SelfdestructAction {
  types.H160 address = 1;
  types.H160 refund_address = 2;
  types.H256 balance = 3;
}

message RewardAction {
  types.H160 author = 1;
  types.H256 value = 2;
  enum RewardType {
    Block = 0;
    Uncle = 1;
  }
  RewardType reward_type = 3;
}

message Action {
  oneof action {
    CallAction call = 1;
    CreateAction create = 2;
    SelfdestructAction selfdestruct = 3;
    RewardAction reward = 4;
  }
}

message Trace {
  Action action = 1;
  optional TraceResult result = 2;
  uint64 subtraces = 3;
  repeated uint64 trace_address = 4;
}

message CallOutput {
  uint64 gas_used = 1;
  bytes output = 2;
}

message CreateOutput {
  uint64 gas_used = 1;
  bytes code = 2;
  types.H160 address = 3;
}

message TraceOutput {
  oneof output {
    CallOutput call = 1;
    CreateOutput create = 2;
  }
}

message TraceResult {
  oneof result {
    TraceOutput output = 1;
    string error = 2;
  }
}

message Traces { repeated Trace traces = 1; }

message TraceWithLocation {
  Trace trace = 1;

  optional uint64 transaction_position = 2;
  optional types.H256 transaction_hash = 3;
  uint64 block_number = 4;
  types.H256 block_hash = 5;
}

message TracesWithLocation { repeated TraceWithLocation traces = 1; }

message OptionalTracesWithLocation { optional TracesWithLocation traces = 1; }

// VM trace

message MemoryDelta {
  uint64 off = 1;
  bytes data = 2;
}

message StorageDelta {
  types.H256 key = 1;
  types.H256 val = 2;
}

message VmExecutedOperation {
  uint64 used = 1;
  optional types.H256 push = 2;
  optional MemoryDelta mem = 3;
  optional StorageDelta store = 4;
}

message VmInstruction {
  uint32 pc = 1;
  uint64 cost = 2;
  optional VmExecutedOperation ex = 3;
  optional VmTrace sub = 4;
}

message VmTrace {
  bytes code = 1;
  repeated VmInstruction ops = 2;
}

// State diff

message AlteredH256 {
  types.H256 from = 1;
  types.H256 to = 2;
}

message DeltaH256 {
  oneof delta {
    google.protobuf.Empty unchanged = 1;
    types.H256 added = 2;
    types.H256 removed = 3;
    AlteredH256 altered = 4;
  }
}

message AlteredU64 {
  uint64 from = 1;
  uint64 to = 2;
}

message DeltaU64 {
  oneof delta {
    google.protobuf.Empty unchanged = 1;
    uint64 added = 2;
    uint64 removed = 3;
    AlteredU64 altered = 4;
  }
}

message AlteredBytes {
  bytes from = 1;
  bytes to = 2;
}

message DeltaBytes {
  oneof delta {
    google.protobuf.Empty unchanged = 1;
    bytes added = 2;
    bytes removed = 3;
    AlteredBytes altered = 4;
  }
}

message StorageDiffEntry {
  types.H256 location = 1;
  DeltaH256 delta = 2;
}

message AccountDiff {
  DeltaH256 balance = 1;
  DeltaU64 nonce = 2;
  DeltaBytes code = 3;
  repeated StorageDiffEntry storage = 4;
}

message AccountDiffEntry {
  types.H160 key = 1;
  AccountDiff value = 2;
}

message StateDiff { repeated AccountDiffEntry diff = 1; }

message FullTrace {
  bytes output = 1;
  optional Traces traces = 2;
  optional VmTrace vm_trace = 3;
  optional StateDiff state_diff = 4;
}

message FullTraceWithTransactionHash {
  FullTrace full_trace = 1;
  types.H256 transaction_hash = 2;
}

message FullTraces { repeated FullTrace traces = 1; }

message FullTracesWithTransactionHashes {
  repeated FullTraceWithTransactionHash traces = 1;
}

message OptionalFullTracesWithTransactionHashes {
  optional FullTracesWithTransactionHashes traces = 1;
}

service TraceApi {
  rpc Call(CallRequests) returns (FullTraces);
  rpc Block(BlockId) returns (OptionalTracesWithLocation);
  rpc BlockTransactions(TraceBlockRequest)
      returns (OptionalFullTracesWithTransactionHashes);
  rpc Transaction(TraceTransactionRequest) returns (FullTrace);
  rpc Filter(FilterRequest) returns (stream TraceWithLocation);
}