almost all internals done after i fix segfault

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