/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * 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
 *
 *     http://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.
 */

#ifndef OHOS_IDL_CODEGENERATOR_H
#define OHOS_IDL_CODEGENERATOR_H

#include <functional>
#include <map>
#include <string>

#include "codegen/code_emitter.h"

namespace OHOS {
namespace Idl {

using CodeEmitMap = std::unordered_map<std::string, AutoPtr<CodeEmitter>>;
using CodeGenFunc = std::function<void(const AutoPtr<AST>&, const std::string&)>;
using StrAstMap = std::unordered_map<std::string, AutoPtr<AST>>;

class CodeGenerator : public LightRefCountBase {
public:
    virtual bool DoGenerate(const StrAstMap &allAst);
};

class CodegenBuilder : public LightRefCountBase {
public:
    using GeneratorEntry = std::map<InterfaceType, AutoPtr<CodeGenerator>>;

    static CodegenBuilder &GetInstance();
    CodegenBuilder(const CodegenBuilder &other) = delete;
    CodegenBuilder operator=(const CodegenBuilder &other) = delete;
    ~CodegenBuilder() = default;

    bool Generate(const StrAstMap &allAst);
    void GeneratorRegister(InterfaceType type, AutoPtr<CodeGenerator> generator);

private:
    CodegenBuilder() {}
    GeneratorEntry generators;
};
} // namespace Idl
} // namespace OHOS

#endif // OHOS_IDL_CODEGENERATOR_H