School Commit Init

Anul 1/Semestrul 2/OOP/Labs/Exam/repo.cpp

@@ -0,0 +1,111 @@
+#include "repo.h"
+#include <stdexcept>
+#include <fstream>
+
+Repository::Repository()
+{
+    this->read_from_file();
+}
+
+Repository::~Repository()
+{
+    this->write_to_file();
+}
+
+std::vector<User> Repository::users()
+{
+    return this->_users;
+}
+
+std::vector<Item> Repository::items()
+{
+    return this->_items;
+}
+
+void Repository::add_item(Item item)
+{
+    for(auto it : this->_items){
+        if(it.name() == item.name()){
+            throw std::runtime_error("Item already exists");
+        }
+    }
+    this->_items.push_back(item);
+}
+
+Item& Repository::find_item(std::string name)
+{
+    for(auto& it : this->_items){
+        if(it.name() == name){
+            return it;
+        }
+    }
+    throw std::runtime_error("Item not found");
+}
+
+void Repository::read_from_file()
+{
+    std::ifstream f("items.txt");
+    std::string name, category;
+    int price;
+    std::string line;
+    std::string buf;
+    int user_id;
+    std::string date;
+    int offer_price;
+    while(std::getline(f,line) || line != ""){
+        buf=line.substr(0, line.find("|"));
+        name = buf;
+        line.erase(0, line.find("|")+1);
+        buf=line.substr(0, line.find("|"));
+        category = buf;
+        line.erase(0, line.find("|")+1);
+        buf=line.substr(0, line.find("|"));
+        price = std::stoi(buf);
+        line.erase(0, line.find("|")+1);
+        std::vector<std::tuple<int,std::string,int>> offers;
+        while(line != ""){
+            buf=line.substr(0, line.find(","));
+            user_id = std::stoi(buf);
+            line.erase(0, line.find(",")+1);
+            buf=line.substr(0, line.find(","));
+            date = buf;
+            line.erase(0, line.find(",")+1);
+            buf=line.substr(0, line.find(","));
+            offer_price = std::stoi(buf);
+            line.erase(0, line.find(";")+1);
+            offers.push_back(std::make_tuple(user_id, date, offer_price));
+        }
+        this->_items.push_back(Item(name, category, price, offers));
+    }
+    std::string type;
+    int id;
+    std::ifstream g("users.txt");
+    while(std::getline(g,line) || line != ""){
+        buf=line.substr(0, line.find("|"));
+        id = std::stoi(buf);
+        line.erase(0, line.find("|")+1);
+        buf=line.substr(0, line.find("|"));
+        name = buf;
+        line.erase(0, line.find("|")+1);
+        buf=line.substr(0, line.find("|"));
+        type = buf;
+        line.erase(0, line.find("|")+1);
+        this->_users.push_back(User(name, id, type));
+    }
+    f.close();
+    g.close();
+}
+
+void Repository::write_to_file()
+{
+    std::ofstream f("items.txt");
+    for(auto it : this->_items){
+        f<<it.name()<<"|"<<it.category()<<"|"<<it.price()<<"|";
+        for(auto it2 : it.offers()){
+            f<<std::get<0>(it2)<<","<<std::get<1>(it2)<<","<<std::get<2>(it2)<<";";
+        }
+        f<<"\n";
+    }
+    f.close();
+}
+