// Finds further configuration options and parts that match
// the given configuration. Doesn't start looking for parts
// until the model is provided.
func Query(w http.ResponseWriter, r *http.Request, enc encoding.Encoder, dtx *apicontext.DataContext) string {
var l products.Lookup
var page int
var count int
qs := r.URL.Query()
page, _ = strconv.Atoi(qs.Get("page"))
count, _ = strconv.Atoi(qs.Get("count"))
qs.Del("page")
qs.Del("count")
l.Vehicle = LoadVehicle(r)
l.Brands = dtx.BrandArray
if qs.Get("key") != "" {
l.CustomerKey = qs.Get("key")
} else if r.FormValue("key") != "" {
l.CustomerKey = r.FormValue("key")
delete(r.Form, "key")
} else {
l.CustomerKey = r.Header.Get("key")
}
if l.Vehicle.Base.Year == 0 { // Get Years
if err := l.GetYears(dtx); err != nil {
apierror.GenerateError("Trouble getting years for vehicle lookup", err, w, r)
return ""
}
} else if l.Vehicle.Base.Make == "" { // Get Makes
if err := l.GetMakes(dtx); err != nil {
apierror.GenerateError("Trouble getting makes for vehicle lookup", err, w, r)
return ""
}
} else if l.Vehicle.Base.Model == "" { // Get Models
if err := l.GetModels(); err != nil {
apierror.GenerateError("Trouble getting models for vehicle lookup", err, w, r)
return ""
}
} else {
// Kick off part getter
partChan := make(chan []products.Part)
go l.LoadParts(partChan, page, count, dtx)
if l.Vehicle.Submodel == "" { // Get Submodels
if err := l.GetSubmodels(); err != nil {
apierror.GenerateError("Trouble getting submodels for vehicle lookup", err, w, r)
return ""
}
} else { // Get configurations
if err := l.GetConfigurations(); err != nil {
apierror.GenerateError("Trouble getting configurations for vehicle lookup", err, w, r)
return ""
}
}
select {
case parts := <-partChan:
if len(parts) > 0 {
l.Parts = parts
l.Filter, _ = apifilter.PartFilter(l.Parts, nil)
}
case <-time.After(5 * time.Second):
}
}
return encoding.Must(enc.Encode(l))
}
