park time can be saved to db now

Park_time.cpp

@@ -0,0 +1,93 @@
+#include"headers/Park_time.h"
+#include <iostream>
+#include <ctime>
+
+
+Park_time::Park_time(int c_id, int s_id)
+    : customer_id { c_id }
+    , spot_id { s_id }
+    , duration { 0 }
+    , start { high_resolution_clock::now() }
+    , id {auto_increment_db() + 1}
+{
+    save_db();
+}
+
+void Park_time::clock_out(int c_id, int s_id)
+{
+
+    if (c_id != customer_id) {
+        std::cout << "wrong customer id, you are at the wrong location";
+        return;
+    }
+    if (s_id != spot_id) {
+        std::cout << "Wrong spot id, you're at the wrong location";
+        return;
+    }
+
+    if (!duration) {
+        end = high_resolution_clock::now();
+        duration = duration_cast<seconds>(end - start).count(); // use mins later
+        update_db();
+
+    } else {
+        std::cout << "Already clocked out. Something is wrong \n";
+    }
+}
+
+
+std::ostream& operator<<(std::ostream& os, const Park_time & pt){
+    std::time_t start_ = system_clock::to_time_t(pt.start);
+    std::time_t end_ = system_clock::to_time_t(pt.end);
+    os << "- - - - - - - - - - - - - - - - - - - -\n";
+    os << "Clocked in :" << std::ctime(&start_);
+    os << "clocked out : " << std::ctime(&end_);
+    os << "duration : " << pt.duration << "\n";
+    os << "- - - - - - - - - - - - - - - - - - - -\n";
+    return os;
+}
+
+
+int Park_time::start_to_int(){
+    auto start_to_epoch = start.time_since_epoch();
+    auto start_value = std::chrono::duration_cast<std::chrono::seconds>(start_to_epoch);
+    int start_seconds = start_value.count();
+    return start_seconds;
+}
+
+// db funcs -----------------------------------------------------------------------------
+
+
+
+void Park_time::save_db() {
+    string statement{"insert into Park_time values ( , , , , , );"};
+    statement.insert(41, "NULL");
+    statement.insert(39, "NULL");
+    statement.insert(37, to_string(start_to_int()) );
+    statement.insert(35, to_string(spot_id));
+    statement.insert(33, to_string(customer_id));
+    statement.insert(31, to_string(id));
+    SQLite::Transaction transaction(data::db);
+    data::db.exec(statement);
+    transaction.commit();
+}
+
+void Park_time::update_db() {
+    string statement = "UPDATE Park_time SET end = , duration =  where id = '';";
+    statement.insert(53, std::to_string(id));
+    statement.insert(40, to_string(duration));
+    statement.insert(27, to_string(start_to_int() + duration));
+    std::cout << statement; // TODO: set some logging here
+    data::db.exec(statement);
+}
+
+
+// to get id on first save to db
+int Park_time::auto_increment_db() {
+    SQLite::Statement max_id(data::db, "select max(id) from Park_time;");
+    int id = 0;
+    max_id.executeStep();
+    id = max_id.getColumn(0);
+    max_id.reset();
+    return id;
+}