ProgressMonitor.hh

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#pragma once

#include <string>
#include <chrono>
#include <stack>
#include <map>
#include <vector>

class ProgressMonitor {
    public:
        ProgressMonitor();
        virtual ~ProgressMonitor();

        virtual void group(std::string name=""); 
        virtual void progress(int n, int total);

        void print() const;

        class Total {
            public: 
                Total();
                
                std::string               name;
                size_t                    call_count;
                std::chrono::milliseconds time_spent;
                int                       total_steps;

                long                      time_spent_as_long() const;

                bool operator==(const Total& other) const;

                std::string               str() const;
        };

        std::vector<Total> totals() const;
        
    private:
        class Block {
            public:
                Block();

                std::string               name;
                std::chrono::milliseconds started;
                int                       step, total_steps;
        };

        std::stack<Block>            call_stack;
        std::map<std::string, Total> call_totals;
};