// Copyright 2025 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "cel_expr_python/py_cel_function_decl.h"

#include <memory>
#include <string>
#include <utility>
#include <vector>

#include "env/config.h"
#include "env/type_info.h"
#include "cel_expr_python/py_cel_overload.h"
#include "cel_expr_python/py_cel_type.h"
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>

namespace cel_python {

namespace py = ::pybind11;

void PyCelFunctionDecl::DefinePythonBindings(pybind11::module& m) {
  py::class_<PyCelFunctionDecl, std::shared_ptr<PyCelFunctionDecl>>(
      m, "FunctionDecl")
      .def(py::init<std::string, std::vector<PyCelOverload>>(), py::arg("name"),
           py::arg("overloads"));
}

cel::Config::FunctionConfig PyCelFunctionDecl::ToFunctionConfig() const {
  cel::Config::FunctionConfig function_config;
  function_config.name = name_;
  function_config.overload_configs.reserve(overloads_.size());
  for (const PyCelOverload& overload : overloads_) {
    function_config.overload_configs.push_back(
        overload.ToFunctionOverloadConfig());
  }
  return function_config;
}

}  // namespace cel_python