structure, layout, parser and its modules

parser/module.cpp

@@ -0,0 +1,43 @@
+#include "module.h"
+#include <fstream>
+#include <nlohmann/json.hpp>
+#include <regex>
+
+Module::Module() {}
+
+Module::Module(std::string path) {
+    std::ifstream settings_file(path);
+    nlohmann::json settings = nlohmann::json::parse(settings_file);
+
+    this->name = settings["name"];
+    this->goods_name_regex = settings["goods_name_regex"];
+    this->goods_price_regex = settings["goods_price_regex"];
+    this->goods_quantity_regex = settings["goods_quantity_regex"];
+}
+
+std::smatch Module::parse_name(std::string str) {
+    std::regex r(this->goods_name_regex);
+
+    std::smatch m;
+    regex_search(str, m, r);
+
+    return m;
+}
+std::smatch Module::parse_price(std::string str) {
+    std::regex r(this->goods_price_regex);
+
+    std::smatch m;
+    regex_search(str, m, r);
+
+    return m;
+}
+std::smatch Module::parse_quantity(std::string str) {
+    std::regex r(this->goods_quantity_regex);
+
+    std::smatch m;
+    regex_search(str, m, r);
+
+    return m;
+}
+
+std::string Module::get_name() { return this->name; }

parser/module.h

@@ -0,0 +1,25 @@
+#ifndef MODULE_H
+#define MODULE_H
+
+#include <string>
+#include <nlohmann/json.hpp>
+#include <regex>
+
+class Module {
+    std::string path;
+    std::string name;
+    std::string goods_name_regex;
+    std::string goods_price_regex;
+    std::string goods_quantity_regex;
+public:
+    Module(std::string);
+    Module();
+
+    std::smatch parse_name(std::string);
+    std::smatch parse_price(std::string);
+    std::smatch parse_quantity(std::string);
+
+    std::string get_name();
+};
+
+#endif // MODULE_H

parser/parser.cpp

@@ -0,0 +1,29 @@
+#include "parser.h"
+#include <iostream>
+#include "../settings.h"
+#include <filesystem>
+
+Parser::Parser() {}
+
+std::vector<std::string> Parser::search_modules() {
+    std::string path = std::string(std::getenv("HOME")) + "/" + MODULES_DIR;
+    std::filesystem::directory_entry modules_dir(path);
+
+    if (!modules_dir.exists()) {
+        std::filesystem::create_directories(path);
+        std::cout << "No modules directory found. Created one at " << path << std::endl;
+        std::cout << "Please, download modules to that directory from my git." << std::endl;
+    }
+
+    std::vector<std::string> modules_files;
+
+    for (auto file : std::filesystem::directory_iterator(path)) {
+        modules_files.push_back(file.path());
+    }
+
+    return modules_files;
+}
+
+void Parser::set_module(std::string path) {
+    module = *(new Module(path));
+}

parser/parser.h

@@ -0,0 +1,20 @@
+#ifndef PARSER_H
+#define PARSER_H
+
+#include <iostream>
+#include "module.h"
+#include <string>
+#include <vector>
+
+class Parser {
+
+    Module module;
+public:
+    Parser();
+
+    std::vector<std::string> search_modules();
+
+    void set_module(std::string);
+};
+
+#endif // PARSER_H