almost all internals done after i fix segfault

Customer.cpp

@@ -1,20 +1,20 @@
 #include "headers/Customer.h"
 
 // constructors
-Customer::Customer(string name_, Verhicle_type verhicle_)
-    : name{name_}, verhicle{verhicle_}, card_code{gen_cardcode()} {
+Customer::Customer(string name_, string password_, Verhicle_type verhicle_)
+    : name{name_}, verhicle{verhicle_}, password{hash_password(password)} {
     id = auto_increment_db() + 1;
     save_db();
 }
 
-Customer::Customer(int id_, string name_, string card_code_,
+Customer::Customer(int id_, string name_, string password_,
                    Verhicle_type verhicle_, vector<Park_time> instances)
-    : name{name_},
-      card_code{card_code_},
+    :id{id_},
+     name{name_},
+      password{password_},
       verhicle{verhicle_},
       park_instances{instances} {}
 
-Customer::~Customer() { update_db(); }
 
 // clock in/out methods
 // ====================================================================================
@@ -33,7 +33,7 @@ void Customer::clock_out(int s_id) {
 
 // report gen
 void Customer::gen_monthly() {
-    cout << "NAME: " << name << " card code: " << card_code << "\n";
+    cout << "NAME: " << name << "\n";
     cout << "-------------------------------------------------\n";
     for (auto& i : park_instances) {
         // TODO: need some logic to only include from this month. scratch that,
@@ -50,7 +50,7 @@ void Customer::save_db() {
     string statement{"insert into Customer values (, '', '', );"};
     // after ( = 28)
     statement.insert(38, to_string(int(verhicle)));
-    statement.insert(36, card_code);
+    statement.insert(36, password);
     statement.insert(32, name);
     statement.insert(29, to_string(id));
     SQLite::Transaction transaction(data::db);
@@ -62,7 +62,7 @@ void Customer::update_db() {
     string statement =
         "UPDATE Customer SET name = '', card_code = '' where id = '';";
     statement.insert(58, to_string(id));
-    statement.insert(44, card_code);
+    statement.insert(44, password);
     statement.insert(28, name);
     data::db.exec(statement);
 }
@@ -84,15 +84,4 @@ int Customer::auto_increment_db() {
     return id;
 }
 
-// random helpers=============================================================
-std::mt19937 mt(time(0));
-std::uniform_int_distribution<int> dist(65, 127);
 
-string Customer::gen_cardcode() {
-    string code;
-    for (int i = 0; i < 20; i++) {
-        char letter = char(dist(mt));
-        code += letter;
-    }
-    return code;
-}

Park_spot.cpp

@@ -13,7 +13,6 @@ Park_spot::Park_spot(Customer* parked_, int id_, bool taken_)
       taken{taken_} // TODO: think about how init parked?
 {}
 
-Park_spot::~Park_spot() { update_db(); }
 
 // clock in en out, calls de juist(in/out) van de customer aan de hand van
 // internal state van taken
@@ -39,10 +38,10 @@ void Park_spot::update_db() {
     statement.insert(63, to_string(id));
     if (taken) {
         statement.insert(49, to_string(parked->id));
-        statement.insert(30, "true");
+        statement.insert(30, "1");
     } else {
         statement.insert(49, "NULL");
-        statement.insert(30, "false");
+        statement.insert(30, "0");
     }
     data::db.exec(statement);
 }
@@ -52,7 +51,7 @@ void Park_spot::save_db() {
     string statement{"insert into Park_spot values ( , , );"};
     // after ( = 28)
     statement.insert(34, "NULL");
-    statement.insert(32, "false");
+    statement.insert(32, "0");
     statement.insert(30, to_string(id));
     SQLite::Transaction transaction(data::db);
     data::db.exec(statement);

Query.cpp

@@ -1,6 +1,7 @@
 #include "headers/Query.h"
 
-vector<Park_time> query_Parktime_for_customer(int cid) {
+
+vector<Park_time> query_parktimes_for_customer(int cid) {
     /*
     This is needed to initialize the park_instances for the customer constructor
     that is supposed to create a customer from data in the db.
@@ -31,20 +32,67 @@ vector<Customer> query_customer_with_name(string name) {
     2. multiple customers could be returned with the same name.
      */
     vector<Customer> result;
-    SQLite::Statement query(data::db,
-                            "SELECT * FROM Customer WHERE name = '?';");
+    SQLite::Statement query(
+        data::db,
+        "SELECT id, name, password, verhicle FROM Customer WHERE name = ?;");
     query.bind(1, name);
     while (query.executeStep()) {
-        // (id integer primary key, name text, card_code varchar(20), verhicle
-        // int) (int id_, string name_, string card_code_, Verhicle_type
-        // verhicle_, vector<Park_time> instances)
-
         int id = query.getColumn(0);
-        string name = query.getColumn(1);
+        string name_ = query.getColumn(1);
         string password = query.getColumn(2);
-        // int verhicle = query.getColumn(3); // cast to verhicle
-        vector<Park_time> park_instances = query_Parktime_for_customer(id);
-        // result.push_back(Customer{id, name, password, Verhicle_type(verhicle), park_instances});
+        int verhicle = query.getColumn(3); // cast to verhicle
+        vector<Park_time> park_instances = query_parktimes_for_customer(id);
+        result.push_back(Customer{
+            id, name_, password, Verhicle_type(verhicle), park_instances});
     }
     return result;
 }
+
+Customer query_customer_with_id(int id) {
+    /*  do not call this function if you are not certain a customer with this id
+    exists.
+    // the only legitimate caller of this function is query_parkspot_x
+    // there is no error handling in this function
+    // for when this function doesn't find the customer with this id !!!!
+    */
+
+    SQLite::Statement query(data::db, "SELECT * FROM Customer WHERE id = ?;");
+    query.bind(1, id);
+    while (query.executeStep()) {
+        string name = query.getColumn(1);
+        string password = query.getColumn(2);
+        int verhicle = query.getColumn(3); // cast to verhicle
+        vector<Park_time> park_instances = query_parktimes_for_customer(id);
+        Customer result{
+            id, name, password, Verhicle_type(verhicle), park_instances};
+        // DEBUG
+        cout << "{" << result.id << "," <<result.password <<"," << int(verhicle) << "}\n";
+        return result;
+    }
+}
+
+void query_all_parking_spots() {
+    SQLite::Statement query(data::db, "SELECT * FROM Park_spot WHERE id > ?;");
+    query.bind(1, 0);
+    while (query.executeStep()) {
+        int id = query.getColumn(0);
+        int taken = query.getColumn(1);
+        int cid = query.getColumn(2);
+        park_customers.push_back(query_customer_with_id(cid));
+        parking_spots.push_back(
+            Park_spot{get_customer_ptr_for_parkspot(cid), id, bool(taken)});
+    }
+}
+
+Customer* get_customer_ptr_for_parkspot(int id) {
+    if (!id) {
+        return nullptr;
+    }
+    for (int i = 0; i < park_customers.size(); i++) {
+        if (park_customers[i].id == id) {
+
+            return &park_customers[i];
+        }
+    }
+    return nullptr;
+}

data.cpp

@@ -2,8 +2,7 @@
 
 namespace data {
 
-SQLite::Database
-start_db() {
+SQLite::Database start_db() {
     SQLite::Database db("test.db3",
                         SQLite::OPEN_READWRITE | SQLite::OPEN_CREATE);
     while (sodium_init() < 0) {
@@ -11,10 +10,10 @@ start_db() {
     }
     db.exec(
         "create table if not exists Customer (id integer primary key, name "
-        "text, card_code varchar(20), verhicle int)");
+        "text, password text, verhicle int)");
     db.exec(
         "create table if not exists Park_spot (id integer primary key, taken "
-        "boolean, customer_id int)");
+        "int, customer_id int)");
     db.exec(
         "create table if not exists Park_time (id integer primary key, "
         "customer_id int, spot_id int, start int, end int, duration int)");

headers/Customer.h

@@ -4,8 +4,6 @@
 
 #include "Park_time.h"
 #include "data.h"
-
-#include <random>
 #include <vector>
 
 using std::vector;
@@ -24,16 +22,15 @@ park_time object. Voegt het toe aan een vector.
 
 class Customer {
   public:
-    Customer(string name_, Verhicle_type verhicle_);
-    Customer(int id_, string name_, // needed to construct from db
-             string card_code_,
-             Verhicle_type verhicle_, // TODO: how init. p_time instances?
-             vector<Park_time> instances);
-    ~Customer();
+
     int id;
     string name;
-    string card_code;
-
+    string password;
+    Customer(string name_, string password_, Verhicle_type verhicle_);
+    Customer(int id_, string name_, // needed to construct from db
+             string password_,
+             Verhicle_type verhicle_, // TODO: how init. p_time instances?
+             vector<Park_time> instances);
     void clock_in(int s_id);
     void clock_out(int s_id);
 
@@ -45,10 +42,13 @@ class Customer {
   private:
     Verhicle_type verhicle;
     vector<Park_time> park_instances;
-
-    string gen_cardcode();
     void save_db();
     int auto_increment_db();
 };
 
+static vector<Customer> park_customers; // save the customers that are parked in here
+// parking_spot uses pointers, so it's better to save the parked customers here
+// where we know they'll be destroyed at the end of this scope, instead of too early
+// and end up with dangling pointers
+
 #endif // CUSTOMER_H

headers/Park_spot.h

@@ -17,17 +17,13 @@ class Park_spot {
     Customer* parked;
     Park_spot();
     Park_spot(Customer* parked_, int id_, bool taken_);
-    ~Park_spot();
-    void
-    clock(Customer* c_customer);
+    void clock(Customer* c_customer);
 
   private:
-    void
-    save_db();
-    void
-    update_db();
-    void
-    delete_db();
-    int
-    auto_increment_db();
+    void save_db();
+    void update_db();
+    void delete_db();
+    int auto_increment_db();
 };
+
+static vector<Park_spot> parking_spots; // to save the parking spots in memory

headers/Query.h

@@ -4,11 +4,15 @@
 
 #include "Park_spot.h"
 
-#include <exception>
 #include <array>
 
-vector<Park_time> query_Parktime_for_customer(int cid);
+vector<Park_time> query_parktimes_for_customer(int cid);
+
 vector<Customer> query_customer_with_name(string name);
+Customer query_customer_with_id(int id);
+Customer* get_customer_ptr_for_parkspot(int id);
+
+void query_all_parking_spots(); // used for initializing the parking spots at start of the program
 
 
 #endif // CUSTOMER_H

main.cpp

@@ -3,7 +3,6 @@
 #include <array>
 #include <thread>
 
-
 /*
 Code strucure like this:
 class declarations zijn in /headers/class_naam.h, en definitions van de member
@@ -19,6 +18,9 @@ record die zegt dat een customer voor x tijd geparkeert heeft bij spot x, enz.
 De client clockt in en uit bij een spot.
  */
 
+
+
+
 void Wait(int sec)
 /*
 a wait function where 1 sec represents 1 hour irl.
@@ -27,35 +29,29 @@ a wait function where 1 sec represents 1 hour irl.
     std::this_thread::sleep_for(seconds{sec});
 }
 
+Customer* get_customer_ptr_for_parkspot(int id);
+
 int main() {
-    class Customer sagar {
-        "query", Verhicle_type::bike
-    };
-    sagar.update_db();
-    Park_spot p1;
-    p1.clock(&sagar); // in
-    Wait(2);
-    p1.clock(&sagar);
-    Wait(2);
-    p1.clock(&sagar); // in
-    Wait(2);
-    p1.clock(&sagar);
-    Wait(2);
-    p1.clock(&sagar); // in
-    Wait(2);
-    p1.clock(&sagar);
-    Wait(2);
+    query_all_parking_spots();
 
-    vector<Customer> test = query_customer_with_name("query");
-    if (!test.size()){
-        cout << "No customers with this name found;";
-    }
-    else if (test.size()==1) {
-        cout << "1 customer found;";
-    }
-    else {
-        cout << "MORE customers found?";
-    }
+    Customer p0 = query_customer_with_name("Shaquile")[0];
+    Customer p1 = query_customer_with_name("Sagar Ramsaransing")[0];
+    Customer p2 = query_customer_with_name("Joshua karto")[0];
+    Customer p3 = query_customer_with_name("Stefan udit")[0];
+    
+    parking_spots[2].clock(&p1);
+    Wait(2);
+    parking_spots[2].clock(&p1);
+    Wait(1);
+    parking_spots[0].clock(&p2);
+    Wait(1);
+    parking_spots[1].clock(&p3);
+    Wait(1);
+    parking_spots[0].clock(&p2);
+    parking_spots[1].clock(&p3);
+    Wait(1);
+    parking_spots[1].clock(&p3);
 
 
 }
+