syntax = "proto3";

package bdchain.api;

import "bdchain/api/common.proto";

option go_package = "bdchain/api/ac_chain";
option java_package = "bdchain.api.grpc";
option java_outer_classname = "AccountingChainProto";
option java_multiple_files = true;

service AccountingChain {
    rpc BlockNumber (BlockNumberRequest) returns (BlockNumberResponse);
    rpc GetBlockByNumber (GetBlockByNumberRequest) returns (Block);
    rpc GetBlockByHash (GetBlockByHashRequest) returns (Block);
    rpc GetTransactionByHash (GetTransactionByHashRequest) returns (Block);
    rpc GetTransactionByBlockNumberAndIndex (GetTransactionByBlockNumberAndIndexRequest) returns (Transaction);
    rpc GetTransactionByBlockHashAndIndex (GetTransactionByBlockHashAndIndexRequest) returns (Transaction);
}

message Transaction {
    uint64 block_number = 1; // 事务所在的区块的区块号，当事务处于待确认状态时为`null`
    bytes block_hash = 2; // 事务所在的区块的哈希，当事务处于待确认状态时为`null`
    uint32 index = 3; // 事务在区块中的位置index，当事务处于待确认状态时为`null`
    bytes hash = 4; // 事务的哈希
    TransactionType type = 5; // 事务类型
    bytes from = 6; // 发送账户地址
    uint64 nonce = 7; // 这条事务之前发送者所发送的事务数量
    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 transactions_root = 7; // 区块的事务树根
    repeated Transaction transactions = 8; // 事务对象的数组，或为空
    repeated bytes transaction_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 GetBlockByHashRequest {
    string ledger = 1;
    bytes hash = 2;
    bool full_transaction = 3;
}

message GetTransactionByHashRequest {
    string ledger = 1;
    bytes hash = 2;
}

message GetTransactionByBlockNumberAndIndexRequest {
    string ledger = 1;
    uint64 block_number = 2;
    uint32 index = 3;
}

message GetTransactionByBlockHashAndIndexRequest {
    string ledger = 1;
    bytes block_hash = 2;
    uint32 index = 3;
}