#include <iostream>
#include <vector>
#include "histogram.h"

using namespace std;

struct Input {
    vector<double> numbers;
    size_t bin_count{};
};

Input
input_data() {
    size_t number_count, bin_count;
	cerr << "Enter number count: ";
    cin >> number_count;
    Input in;
    in.numbers.resize(number_count);
    for (size_t i = 0; i < number_count; i++)
    {
        cerr << "Enter Num[" << i << "]: ";
        cin >> in.numbers[i];
    }
    cerr << "Enter bin count: "; cin >> bin_count;
    cerr << "Enter bin count: ";
    cin >> in.bin_count;
    return in;
}

void show_histogram_text(vector<size_t> bins, size_t bin_count){
    const size_t SCREEN_WIDTH = 80;
    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;

    size_t max_bin = bins[0];
    for(size_t i = 0; i < bin_count; i++)
    {
        if(bins[i] > max_bin)
        {
            max_bin = bins[i];
        }
    }

    for (size_t bin: bins)
    {
        size_t height = bin;

        if (max_bin > MAX_ASTERISK)
        {
          height = MAX_ASTERISK * (static_cast<double>(bin) / max_bin);
        }

        if (bin < 100)
        {
            cout << ' ';
        }
        if (bin < 10)
        {
            cout << ' ';
        }
        cout << bin << "|";
        for(size_t i = 0; i < height; i++)
        {
            cout << "*";
        }
        cout << endl;
    }
}
int main()
{
    auto in = input_data();
    auto bins = make_histogram(in.numbers, in.bin_count);
    show_histogram_text(bins, in.bin_count);

    return 0;
}