/*
 * Copyright (c) 2025 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.
 */

#include "cfgBuilderPhase.h"
#include "compiler/core/CFG.h"
#include "util/options.h"

namespace ark::es2panda::compiler {

bool CFGBuilderPhase::Perform(public_lib::Context *ctx, parser::Program *program)
{
    if (ctx->config->options->IsGenStdlib()) {
        return true;
    }

    for (auto &[_, ext_programs] : program->ExternalSources()) {
        (void)_;
        for (auto *extProg : ext_programs) {
            Perform(ctx, extProg);
        }
    }

    compiler::CFG *cfg = program->GetCFG();

    program->Ast()->IterateRecursively([&](ir::AstNode *node) -> void {
        if (node->IsScriptFunction()) {
            cfg->Build(node->AsScriptFunction());
        }
    });

    cfg->MergeEmptyBlocks();

    if (ctx->config->options->IsDumpCfg()) {
        std::string filename = program->AbsoluteName().Mutf8();
        cfg->DumpDot((filename + ".dot").c_str());
    }

    return true;
}

}  // namespace ark::es2panda::compiler