// =====================================================================================
//
//       Filename:  stat.cc
//
//    Description:  statistics of experiment results
//
//        Version:  1.0
//        Created:  2015年10月10日 11时11分56秒
//       Revision:  none
//       Compiler:  g++
//
//         Author:  Jinkun Lin, jkunlin@gmail.com
//   Organization:  School of EECS, Peking University
//
// =====================================================================================

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <vector>
#include <limits>

using namespace std;

class Director_entry {/*{{{*/
public:
	Director_entry (string director_name) {
		string cmd = "ls " + director_name + " > " + director_name + "_tmpfile.txt";
		system(cmd.c_str());
		fstream file(director_name + "_tmpfile.txt");
		if (!file.is_open()) {
			cout << "can't open dir" << endl;
			exit(0);
		}
		string line;
		while (getline(file, line)) {
			file_name.push_back(line);
		}
		file.close();
		cmd = "rm " + director_name + "_tmpfile.txt";
		system(cmd.c_str());
	};

	vector<string>::const_iterator begin() {
		return file_name.begin();
	}

	vector<string>::const_iterator end() {
		return file_name.end();
	}

	vector<string>::size_type size() {
		return file_name.size();
	}

	using size_type = vector<string>::size_type;

	string& operator [] (size_type i) {
		return file_name[i];
	}

private:
	vector<string> file_name;
};/*}}}*/

int main(int argc, char const *argv[]) {
	if (argc != 2) {
		std::cout << "usage: " << std::endl;
		return 1;
	}
	string result_dir = argv[1];

	fstream solution("solution.xls", ios::out);
	if (!solution.is_open()) {
		cout << "can't create simplification.xls" << endl;
		return 1;
	}
	solution.precision(15);

	vector<string> all_benchmark_name = {"bio", "col", "fb", "inf",
		"int", "rec", "ret", "sci",
		"soc", "tec",  "web"};

	for (auto benchmark_name : all_benchmark_name) {
		cout << "****  " << benchmark_name << "  ***" << endl;

		Director_entry benchmark(result_dir + "/" + benchmark_name);
		for (auto instance_name : benchmark) {
			cout << instance_name << endl;

			Director_entry instance(benchmark_name + "/" + instance_name);
			Director_entry::size_type i = 0;
			for (; i < instance.size(); ++i) {
				string result_file_name = instance[i];

				fstream result_file(benchmark_name + "/" + instance_name + "/" + result_file_name);
				if (!result_file.is_open()) {
					cout << "result file error" << endl;
					return 1;
				}

				result_file.close();
			}

			solution << instance_name << endl;
		}
	}
	solution.close();
	return 0;
}