syntax = "proto3";

package volume_server_pb;

//////////////////////////////////////////////////

service VolumeServer {
    //Experts only: takes multiple fid parameters. This function does not propagate deletes to replicas.
    rpc BatchDelete (BatchDeleteRequest) returns (BatchDeleteResponse) {
    }
    rpc VacuumVolumeCheck (VacuumVolumeCheckRequest) returns (VacuumVolumeCheckResponse) {
    }
    rpc VacuumVolumeCompact (VacuumVolumeCompactRequest) returns (VacuumVolumeCompactResponse) {
    }
    rpc VacuumVolumeCommit (VacuumVolumeCommitRequest) returns (VacuumVolumeCommitResponse) {
    }
    rpc VacuumVolumeCleanup (VacuumVolumeCleanupRequest) returns (VacuumVolumeCleanupResponse) {
    }

    rpc DeleteCollection (DeleteCollectionRequest) returns (DeleteCollectionResponse) {
    }
    rpc AssignVolume (AssignVolumeRequest) returns (AssignVolumeResponse) {
    }

    rpc VolumeSyncStatus (VolumeSyncStatusRequest) returns (VolumeSyncStatusResponse) {
    }
    rpc VolumeSyncIndex (VolumeSyncIndexRequest) returns (VolumeSyncIndexResponse) {
    }
    rpc VolumeSyncData (VolumeSyncDataRequest) returns (VolumeSyncDataResponse) {
    }

    rpc VolumeMount (VolumeMountRequest) returns (VolumeMountResponse) {
    }
    rpc VolumeUnmount (VolumeUnmountRequest) returns (VolumeUnmountResponse) {
    }

}

//////////////////////////////////////////////////

message BatchDeleteRequest {
    repeated string file_ids = 1;
}

message BatchDeleteResponse {
    repeated DeleteResult results = 1;
}
message DeleteResult {
    string file_id = 1;
    int32 status = 2;
    string error = 3;
    uint32 size = 4;
}

message Empty {
}

message VacuumVolumeCheckRequest {
    uint32 volumd_id = 1;
}
message VacuumVolumeCheckResponse {
    double garbage_ratio = 1;
}

message VacuumVolumeCompactRequest {
    uint32 volumd_id = 1;
    int64 preallocate = 2;
}
message VacuumVolumeCompactResponse {
}

message VacuumVolumeCommitRequest {
    uint32 volumd_id = 1;
}
message VacuumVolumeCommitResponse {
}

message VacuumVolumeCleanupRequest {
    uint32 volumd_id = 1;
}
message VacuumVolumeCleanupResponse {
}

message DeleteCollectionRequest {
    string collection = 1;
}
message DeleteCollectionResponse {
}

message AssignVolumeRequest {
    uint32 volumd_id = 1;
    string collection = 2;
    int64 preallocate = 3;
    string replication = 4;
    string ttl = 5;
}
message AssignVolumeResponse {
}

message VolumeSyncStatusRequest {
    uint32 volumd_id = 1;
}
message VolumeSyncStatusResponse {
    uint32 volumd_id = 1;
    string replication = 4;
    string ttl = 5;
    uint64 tail_offset = 6;
    uint32 compact_revision = 7;
    uint64 idx_file_size = 8;
}

message VolumeSyncIndexRequest {
    uint32 volumd_id = 1;
}
message VolumeSyncIndexResponse {
    bytes index_file_content = 1;
}

message VolumeSyncDataRequest {
    uint32 volumd_id = 1;
    uint32 revision = 2;
    uint32 offset = 3;
    uint32 size = 4;
    string needle_id = 5;
}
message VolumeSyncDataResponse {
    bytes file_content = 1;
}

message VolumeMountRequest {
    uint32 volumd_id = 1;
}
message VolumeMountResponse {
}

message VolumeUnmountRequest {
    uint32 volumd_id = 1;
}
message VolumeUnmountResponse {
}