syntax = "proto3";

package uff;

message MetaGraph {
    int64 version = 1;
    int64 descriptor_core_version = 2;
    repeated Descriptor descriptors = 3;
    repeated Graph graphs = 4;
    repeated ReferencedDataEntry referenced_data = 5;
    repeated ExtraFieldsEntry extra_fields = 100;

    message ReferencedDataEntry {
        string key = 1;
        Data value = 2;
    }

    message ExtraFieldsEntry {
        string key = 1;
        Data value = 2;
    }
}

message Descriptor {
    string id = 1;
    int64 version = 2;
    bool optional = 3;
}

message Graph {
    string id = 1;
    repeated Node nodes = 2;
    repeated ExtraFieldsEntry extra_fields = 100;

    message ExtraFieldsEntry {
        string key = 1;
        Data value = 2;
    }
}

message Node {
    string id = 1;
    repeated string inputs = 2;
    string operation = 3;
    repeated FieldsEntry fields = 4;
    repeated ExtraFieldsEntry extra_fields = 100;

    message FieldsEntry {
        string key = 1;
        Data value = 2;
    }

    message ExtraFieldsEntry {
        string key = 1;
        Data value = 2;
    }
}

message Data {
    oneof type {
        string s = 1;
        ListString s_list = 2;
        double d = 3;
        ListDouble d_list = 4;
        bool b = 5;
        ListBool b_list = 6;
        int64 i = 7;
        ListInt64 i_list = 8;
        bytes blob = 9;
        string ref = 100;
        DataType dtype = 101;
        ListDataType dtype_list = 102;
        DimensionOrders dim_orders = 103;
        ListDimensionOrders dim_orders_list = 104;
    }
}

enum DataType {
    DT_INVALID = 0;
    DT_INT8 = 0x10008;
    DT_INT16 = 0x10010;
    DT_INT32 = 0x10020;
    DT_INT64 = 0x10040;
    DT_FLOAT16 = 0x20010;
    DT_FLOAT32 = 0x20020;
}

enum OrderEnum {
    OE_ZERO = 0;
    OE_SPECIAL = -1;
    OE_INCREMENT = 0x7FFFFFFF;
    OE_DECREMENT = -0x80000000;
}

message DimensionOrders {
    repeated OrdersEntry orders = 1;

    message OrdersEntry {
        OrderEnum key = 1;
        ListInt64 value = 2;
    }
}

message ListString {
    repeated string val = 1;
}

message ListDouble {
    repeated double val = 1;
}

message ListBool {
    repeated bool val = 1;
}

message ListInt64 {
    repeated int64 val = 1;
}

message ListDataType {
    repeated DataType val = 1;
}

message ListDimensionOrders {
    repeated DimensionOrders val = 1;
}