progress_parser.hpp

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// SPDX-License-Identifier: MIT
#pragma once
 
#include <functional>
#include <string>
#include <string_view>
 
namespace pulp::platform {

struct ProgressEvent {
    std::string type;     
    std::string payload;  
};

class ProgressParser {
public:
    using Callback = std::function<void(const ProgressEvent&)>;
 
    explicit ProgressParser(Callback cb) : callback_(std::move(cb)) {}

    void feed_line(std::string_view line) {
        if (!line.starts_with("PROGRESS:")) return;
        auto rest = line.substr(9);  // after "PROGRESS:"
        auto colon = rest.find(':');
        if (colon == std::string_view::npos) {
            // PROGRESS:TYPE (no payload)
            if (callback_) callback_({std::string(rest), {}});
        } else {
            // PROGRESS:TYPE:PAYLOAD
            if (callback_) callback_({
                std::string(rest.substr(0, colon)),
                std::string(rest.substr(colon + 1))
            });
        }
    }
 
private:
    Callback callback_;
};
 
}  // namespace pulp::platform