InputReader.hpp

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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2026 Caleb Buahin
//
// 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 OPENSWMM_ENGINE_INPUT_READER_HPP
#define OPENSWMM_ENGINE_INPUT_READER_HPP
 
#include "SectionRegistry.hpp"
#include "../core/SimulationContext.hpp"
 
#include <string>
#include <vector>
#include <iosfwd>
 
namespace openswmm::input {

class InputReader {
public:
    explicit InputReader(SectionRegistry& registry);

    bool read(const std::string& path, SimulationContext& ctx);

    bool read_stream(std::istream& stream, SimulationContext& ctx);

    int lines_read() const noexcept { return lines_read_; }

    const std::vector<std::string>& skipped_sections() const noexcept {
        return skipped_sections_;
    }
 
private:
    SectionRegistry&        registry_;
    int                     lines_read_       = 0;
    std::vector<std::string> skipped_sections_;

    static std::string parse_section_header(std::string_view line);

    void dispatch_section(
        const std::string&             tag,
        const std::vector<std::string>& lines,
        SimulationContext&             ctx
    );

    void replay_deferred_rows(SimulationContext& ctx);
};
 
} /* namespace openswmm::input */
 
#endif /* OPENSWMM_ENGINE_INPUT_READER_HPP */