#include "util.h"

namespace Utils {

array<vector<string>, 5> read_csv(const string& filename) {
    array<vector<string>, 5> array_vectors;
    vector<string> vec_option;
    vector<string> vec_opcision;
    ifstream file(filename);
    string line;
    char delimiter = ';';
    getline(file, line);
    while (getline(file, line)) {
        stringstream stream(line);
        string option;
        string opcision;
        getline(stream, option, delimiter);
        string line_local = stream.str();
        if (line_local.find("\"") != string::npos) {
            string str_delimiter = "\"";
            vector<int> point = find_all(line_local, str_delimiter);
            size_t len = point.size();
            if (len >= 2) {
                int index_start = point[len-2];
                int index_end = point[len-1];
                opcision = line_local.substr(index_start, index_end);
                index_end = opcision.find("\"");
                if (opcision.find("\"") != string::npos) {
                    opcision.replace(index_end, opcision.length(), "");
                }

            }
            else {
                opcision = "error";
            }

            
        }
        else{
            getline(stream, opcision, delimiter);
        }
        

        vec_option.push_back(option);
        vec_opcision.push_back(opcision);
    }

    array_vectors[0] = vec_option;
    array_vectors[1] = vec_opcision;
    return array_vectors;
}

void write_file(string path_name, string data) {
    ofstream fout(path_name, ios_base::out | ios_base::trunc);
    if (fout.is_open()) {
        fout << data;
        fout.close();
    }
}

vector<tuple<string, string>> read_csv_melody(const string& filename) {
    vector<tuple<string, string>> vec_music;
    ifstream file(filename);
    string line;
    char delimiter = ';';
    getline(file, line);
    while (getline(file, line)) {
        stringstream stream(line);
        string name;
        string code;
        getline(stream, name, delimiter);
        getline(stream, code, delimiter);
        tuple<string, string> tuple_music(name, code);
        vec_music.push_back(tuple_music);
    }
    return vec_music;
}

string call(string cmd) {
    FILE *fp;
    int status;
    char path[PATH_MAX] = {0};
    fp = popen(cmd.c_str(), "r");
    if (fp == NULL) {
        exit(1);
    }  
    while (fgets(path, PATH_MAX, fp) != NULL) {
        break;  
    }
    status = pclose(fp);
    if (status == -1) {
        exit(1);
    }
    return path;
}

vector<int> find_all(string &str_ntp, string substr) {
    size_t index = 0;
    vector<int> sub_index;
    while ((index = str_ntp.find(substr, index)) != std::string::npos) {
        index += substr.length();
        sub_index.push_back(index);
    }
    return sub_index;
}

void str_remove(std::string& source, std::string to_remove) {
    string::size_type n = to_remove.length();
    for (string::size_type i = source.find(to_remove);
        i != string::npos;
        i = source.find(to_remove))
        source.erase(i, n);
}

void str_replace_all(std::string& str_base, string str_find, string sReplacement)
{
    size_t pos = 0, fpos;
    while ((fpos = str_base.find(str_find, pos)) != std::string::npos)
    {
        str_base.replace(fpos, str_find.size(), sReplacement);
        pos = fpos + sReplacement.size();
    }
}
std::vector<std::string> split(std::string text, char delim) {
    std::string line;
    std::vector<std::string> vec;
    std::stringstream ss(text);
    while(std::getline(ss, line, delim)) {
        vec.push_back(line);
    }
    return vec;
}

}