syntax = "proto3";

package bg.api;

import "bg/api/common.proto";

option go_package = "bg/api/protobuf/ac_chain";
option java_package = "bg.protobuf";
option java_outer_classname = "AcChainProto";
option java_multiple_files = true;

service AcChain {
    rpc BlockNumber (BlockNumberRequest) returns (BlockNumberResponse);
    rpc GetBlockByNumber (GetBlockByNumberRequest) returns (GetBlockByNumberResponse);
    rpc GetBlockByHash (GetBlockByHashRequest) returns (GetBlockByHashResponse);
    rpc GetMessageByHash (GetMessageByHashRequest) returns (GetMessageByHashResponse);
    rpc GetMessageByBlockNumberAndIndex (GetMessageByBlockNumberAndIndexRequest) returns (GetMessageByBlockNumberAndIndexResponse);
    rpc GetMessageByBlockHashAndIndex (GetMessageByBlockHashAndIndexRequest) returns (GetMessageByBlockHashAndIndexResponse);
}

message Message {
    uint64 block_number = 1; // 消息所在的区块的区块号，当消息处于待确认状态时为`null`
    bytes block_hash = 2; // 消息所在的区块的哈希，当消息处于待确认状态时为`null`
    uint32 index = 3; // 消息在区块中的位置index，当消息处于待确认状态时为`null`
    bytes hash = 4; // 消息的哈希
    MessageType type = 5; // 消息类型
    bytes from = 6; // 发送账户地址
    uint64 nonce = 7; // 这条消息之前发送者所发送的消息数量
    bytes to = 8; // 接收账户地址，或者调用的合约地址，或者`null`如为合约创建
    bytes data = 9; // 数据或合约代码
    bytes v = 10; // ECDSA recovery id
    bytes r = 11; // ECDSA signature r
    bytes s = 12; // ECDSA signature s
}

message Block {
    uint64 number = 1; // 区块号，当区块处于待确认状态时为`null`
    bytes hash = 2; // 区块的哈希，当区块处于待确认状态时为`null`
    bytes parent_hash = 3; // 父区块的哈希
    bytes witness = 4; // 见证者账户地址
    uint64 timestamp = 5; // 区块产生时的UNIX时间戳
    uint64 size = 6; // 区块大小的字节数
    bytes message_root = 7; // 区块的消息树根
    repeated Message messages = 8; // 消息对象的数组，或为空
    repeated bytes message_hashes = 9; // 32字节的交易哈希的数组，或为空
}

message BlockNumberRequest {
    string ledger = 1;
}
message BlockNumberResponse {
    uint64 block_number = 1;
}

message GetBlockByNumberRequest {
    string ledger = 1;
    uint64 number = 2;
    bool full_transaction = 3;
}
message GetBlockByNumberResponse {
    Block block = 1;
}

message GetBlockByHashRequest {
    string ledger = 1;
    bytes hash = 2;
    bool full_transaction = 3;
}
message GetBlockByHashResponse {
    Block block = 1;
}

message GetMessageByHashRequest {
    string ledger = 1;
    bytes hash = 2;
}
message GetMessageByHashResponse {
    Message message = 1;
}

message GetMessageByBlockNumberAndIndexRequest {
    string ledger = 1;
    uint64 block_number = 2;
    uint32 index = 3;
}
message GetMessageByBlockNumberAndIndexResponse {
    Message message = 1;
}

message GetMessageByBlockHashAndIndexRequest {
    string ledger = 1;
    bytes block_hash = 2;
    uint32 index = 3;
}
message GetMessageByBlockHashAndIndexResponse {
    Message message = 1;
}