func (sess MongodbHandler) GetTrip(rw http.ResponseWriter, req *http.Request, p httprouter.Params) {
tripDetails := components.TripDetails{}
id := bson.ObjectIdHex(p.ByName("trip_id"))
err := sess.session.DB("test_db").C("trips").FindId(id).One(&tripDetails)
if err != nil {
fmt.Printf("got an error finding a doc %v\n")
}
if tripDetails.ID == "" {
fmt.Fprintf(rw, "Invalid LocationID")
} else {
tripDetails.NextDestinationLocationID = ""
tripDetails.UberWaitTime = ""
rw.Header().Set("Content-Type", "application/json; charset=UTF-8")
rw.Header().Set("Access-Control-Allow-Origin", "*")
rw.WriteHeader(200)
json.NewEncoder(rw).Encode(tripDetails)
}
}
func (sess MongodbHandler) UpdateTrip(rw http.ResponseWriter, req *http.Request, p httprouter.Params) {
tripDetails := components.TripDetails{}
locationDetails := components.Location{}
id := bson.ObjectIdHex(p.ByName("trip_id"))
err := sess.session.DB("test_db").C("trips").FindId(id).One(&tripDetails)
if err != nil {
fmt.Printf("got an error finding a trip %v\n")
}
currentLocationID := tripDetails.StartingFromLocationID
if tripDetails.NextDestinationLocationID == tripDetails.StartingFromLocationID {
tripDetails.Status = "trip over"
tripDetails.NextDestinationLocationID = ""
tripDetails.StartingFromLocationID = ""
tripDetails.UberWaitTime = ""
} else {
if tripDetails.Status == "requesting" {
if len(tripDetails.BestRouteLocationIds) > 1 {
currentLocationID = tripDetails.BestRouteLocationIds[0]
x := tripDetails.BestRouteLocationIds[1:len(tripDetails.BestRouteLocationIds)]
tripDetails.BestRouteLocationIds = x
tripDetails.NextDestinationLocationID = tripDetails.BestRouteLocationIds[0]
} else {
tripDetails.BestRouteLocationIds = nil
currentLocationID = tripDetails.NextDestinationLocationID
tripDetails.NextDestinationLocationID = tripDetails.StartingFromLocationID
}
} else if tripDetails.Status == "planning" {
tripDetails.NextDestinationLocationID = tripDetails.BestRouteLocationIds[0]
tripDetails.Status = "requesting"
}
url := fmt.Sprintf("http://localhost:8080/locations/%s", currentLocationID)
client := http.Client{Timeout: timeout}
res, err := client.Get(url)
if err != nil {
fmt.Errorf("Cannot read localhost LocationsAPI: %v", err)
}
defer res.Body.Close()
decoder := json.NewDecoder(res.Body)
err = decoder.Decode(&locationDetails)
if err != nil {
fmt.Errorf("Error in decoding the Location JSON: %v", err)
}
startLat := locationDetails.Coordinate.Lat
startLng := locationDetails.Coordinate.Lng
url = fmt.Sprintf("http://localhost:8080/locations/%s", tripDetails.NextDestinationLocationID)
client = http.Client{Timeout: timeout}
res, err = client.Get(url)
if err != nil {
fmt.Errorf("Cannot read localhost LocationsAPI: %v", err)
}
defer res.Body.Close()
decoder = json.NewDecoder(res.Body)
err = decoder.Decode(&locationDetails)
if err != nil {
fmt.Errorf("Error in decoding the Location JSON: %v", err)
}
tripDetails.UberWaitTime = components.UberRideRequest(startLat, startLng, locationDetails.Coordinate.Lat, locationDetails.Coordinate.Lng)
if len(tripDetails.BestRouteLocationIds) == 0 {
tripDetails.NextDestinationLocationID = tripDetails.StartingFromLocationID
}
///////////////////////////////////////
}
//update the request in database
err = sess.session.DB("test_db").C("trips").UpdateId(id, tripDetails)
if err != nil {
fmt.Printf("got an error updating a doc %v\n")
}
rw.Header().Set("Content-Type", "application/json; charset=UTF-8")
rw.WriteHeader(200)
json.NewEncoder(rw).Encode(tripDetails)
}