mapquest.go

package p

import (
	"encoding/json"
	"fmt"
	"os"
)

// locationMapquestStruct: https://developer.mapquest.com/documentation/open/geocoding-api/address/get/
// Autogenerated from https://mholt.github.io/json-to-go/
type locationMapquestStruct struct {
	Info struct {
		Statuscode int `json:"statuscode"`
		Copyright  struct {
			Text         string `json:"text"`
			ImageURL     string `json:"imageUrl"`
			ImageAltText string `json:"imageAltText"`
		} `json:"copyright"`
		Messages []interface{} `json:"messages"`
	} `json:"info"`
	Options struct {
		MaxResults        int  `json:"maxResults"`
		ThumbMaps         bool `json:"thumbMaps"`
		IgnoreLatLngInput bool `json:"ignoreLatLngInput"`
	} `json:"options"`
	Results []struct {
		ProvidedLocation struct {
			Location string `json:"location"`
		} `json:"providedLocation"`
		Locations []struct {
			Street             string `json:"street"`
			AdminArea6         string `json:"adminArea6"`
			AdminArea6Type     string `json:"adminArea6Type"`
			AdminArea5         string `json:"adminArea5"`
			AdminArea5Type     string `json:"adminArea5Type"`
			AdminArea4         string `json:"adminArea4"`
			AdminArea4Type     string `json:"adminArea4Type"`
			AdminArea3         string `json:"adminArea3"`
			AdminArea3Type     string `json:"adminArea3Type"`
			AdminArea1         string `json:"adminArea1"`
			AdminArea1Type     string `json:"adminArea1Type"`
			PostalCode         string `json:"postalCode"`
			GeocodeQualityCode string `json:"geocodeQualityCode"`
			GeocodeQuality     string `json:"geocodeQuality"`
			DragPoint          bool   `json:"dragPoint"`
			SideOfStreet       string `json:"sideOfStreet"`
			LinkID             string `json:"linkId"`
			UnknownInput       string `json:"unknownInput"`
			Type               string `json:"type"`
			LatLng             struct {
				Lat float64 `json:"lat"`
				Lng float64 `json:"lng"`
			} `json:"latLng"`
			DisplayLatLng struct {
				Lat float64 `json:"lat"`
				Lng float64 `json:"lng"`
			} `json:"displayLatLng"`
			MapURL string `json:"mapUrl"`
		} `json:"locations"`
	} `json:"results"`
}

// MapquestProvider provider
type MapquestProvider struct {
	URL     string
	Key     string
	Timeout int
}

// NewMapquest creates a integration with Mapquest provider
func NewMapquest() (MapquestProvider, error) {
	var key = os.Getenv("mapquest_key")
	var url = "http://www.mapquestapi.com"

	if len(key) == 0 {
		return MapquestProvider{}, fmt.Errorf("mapquest_key variable not defined")
	}

	return MapquestProvider{
		URL:     url,
		Key:     key,
		Timeout: 10,
	}, nil
}

// GetLocationFromName : Get Location using a name as direction
func (m MapquestProvider) GetLocationFromName(name string) (LocationAPIV1Struct, error) {
	url := fmt.Sprintf("%s/geocoding/v1/address?key=%s&location=%s", m.URL, m.Key, name)

	// fetch api, returns body
	locationByte, err := fetchAPI(url, m.Timeout)
	if err != nil {
		return LocationAPIV1Struct{}, err
	}

	// Convert body to location mapquest struct
	location := locationMapquestStruct{}
	err = json.Unmarshal(locationByte, &location)
	if err != nil {
		return LocationAPIV1Struct{}, err
	}
	// Convert location mapquest struct to location api v1
	return m.locationAPIV1(location)
}

// locationAPIV1 location struct convert
func (m *MapquestProvider) locationAPIV1(location locationMapquestStruct) (LocationAPIV1Struct, error) {
	var res LocationAPIV1Struct

	res.Name = location.Results[0].ProvidedLocation.Location
	res.LatLng.Lat = location.Results[0].Locations[0].LatLng.Lat
	res.LatLng.Lng = location.Results[0].Locations[0].LatLng.Lng

	return res, nil
}