Made GFS code into an ADT

src/gtfs/structs.rs

@@ -1,6 +1,6 @@
-use std::collections::{HashMap, HashSet};
+use std::collections::{HashSet};
 
-use gtfs_structures::{Agency, Calendar, CalendarDate, RawStopTime, RawTrip, Route, Stop, TimepointType};
+use gtfs_structures::{TimepointType, Route, Stop};
 
 // This is to store the preferences for the GTFS(-R) side of the code.
 pub struct Preferences {
@@ -9,25 +9,6 @@ pub struct Preferences {
 }
 
 
-// The main GTFS struct. This is similar to (but not exactly) gtfs-structures::Gtfs because we don't need everything
-#[derive(Debug)]
-pub struct Gtfs {
-    /// All agencies. They can not be read by `agency_id`, as it is not a required field
-    pub agencies: Vec<Agency>,
-    /// All Calendar by `service_id`
-    pub calendar: HashMap<String, Calendar>,
-    /// All calendar dates grouped by service_id
-    pub calendar_dates: HashMap<String, Vec<CalendarDate>>,
-    /// All routes by `route_id`
-    pub routes: HashMap<String, Route>,
-    /// All stop by `stop_id`.
-    pub stops: HashMap<String, Stop>,
-    /// All trips by trip_id
-    pub trips: HashMap<String, RawTrip>,
-    /// Stop times for the chosen stops and the chosen routes
-    pub stop_times: HashMap<(String, u32), RawStopTime>,
-}
-
 pub struct Arrival<'a> {
     pub route: &'a Route,
     pub stop: &'a Stop,