Generate CombiLine JSON data

main.go

@@ -1,12 +1,13 @@
 package main
 
 import (
+	"encoding/json"
 	"encoding/xml"
-	"errors"
 	"fmt"
 	"log"
 	"os"
 	"regexp"
+	"strconv"
 )
 
 type OsmBounds struct {
@@ -38,6 +39,20 @@ type OsmTag struct {
 	V string `xml:"v,attr"`
 }
 
+type OsmWay struct {
+	Id        int64   `xml:"id,attr"`
+	Version   int64   `xml:"version,attr"`
+	Timestamp string  `xml:"timestamp,attr"`
+	Changeset int64   `xml:"changeset,attr"`
+	Uid       int64   `xml:"uid,attr"`
+	User      string  `xml:"user,attr"`
+	Nds       []OsmNd `xml:"nd"`
+}
+
+type OsmNd struct {
+	Ref int64 `xml:"ref,attr"`
+}
+
 type OsmRelation struct {
 	Id        int64       `xml:"id,attr"`
 	Version   int32       `xml:"version,attr"`
@@ -54,19 +69,37 @@ type OsmDocument struct {
 	Bounds    OsmBounds     `xml:"bounds"`
 	Nodes     []OsmNode     `xml:"node"`
 	Relations []OsmRelation `xml:"relation"`
+	Ways      []OsmWay      `xml:"way"`
 }
 
 type CombiData struct {
-	/// Name of the operator of the route.
+	// Number that succeedes the Company name.
-	/// E.g.: "C7 - AqpMasivo"
+	// E.g.: 7
+	Id int
+	// Name of the operator of the route.
+	// E.g.: "C7 - AqpMasivo"
 	Company string
-	/// Name of the route
+	// Name of the route
-	/// E.g.: "Combi B: Villa Santa Rosa -> Terminal Terrestre"
+	// E.g.: "Combi B: Villa Santa Rosa -> Terminal Terrestre"
 	Name string
-	/// Contains a single, identifiable name for the route.
+	// Indentifiable name of the route
-	/// This is the Name field, but without any extra info
+	Ref   string
-	/// E.g.: "B"
+	Color string
-	ParsedName string
+}
+
+// Type to be consumed by the client
+// Represents a single company
+type CombiLine struct {
+	Id       int    `json:"id"`
+	Name     string `json:"name"`
+	District string `json:"district"`
+	Color    string `json:"color"`
+}
+
+type CombiRoute struct {
+	Name      string    `json:"name"`
+	Departure []float64 `json:"departure"`
+	Return    []float64 `json:"return"`
 }
 
 func main() {
@@ -113,65 +146,101 @@ func main() {
 	// transform sitMembers into CombiData
 	combis := make([]CombiData, 0)
 	for _, member := range sitMembers {
-		var operatorTag *OsmTag
+		combis = append(combis, parseCombiData(member))
-		var nameTag *OsmTag
-
-		for _, tag := range member.Tags {
-			if tag.K == "operator" {
-				operatorTag = &tag
-				continue
-			}
-			if tag.K == "name" {
-				nameTag = &tag
-				continue
-			}
-		}
-
-		if operatorTag == nil {
-			log.Fatalf("Found a SIT member without an operator tag, with id %d\n", member.Id)
-		}
-		if nameTag == nil {
-			log.Fatalf("Found a SIT member without a name tag, with id %d\n", member.Id)
-		}
-
-		parsedName, err := parseRoute(nameTag.V)
-		if err != nil {
-			log.Printf("SIT member id: %s\n", member.Id)
-			panic(err)
-		}
-
-		combis = append(combis, CombiData{
-			Company:    operatorTag.V,
-			Name:       nameTag.V,
-			ParsedName: parsedName,
-		})
 	}
 
+	// Create a map from string to CombiLine
+	combiLineMap := make(map[string]*CombiLine)
+
+	// Populate the map
 	for _, combi := range combis {
-		log.Printf("%s: `%s`\n", combi.Company, combi.ParsedName)
+		combiLine := combiLineMap[combi.Company]
+		if combiLine == nil {
+			// create the company in the map
+			combiLine := CombiLine{
+				Id:       combi.Id,
+				Name:     combi.Company,
+				District: "",
+				Color:    combi.Color,
+			}
+			combiLineMap[combi.Company] = &combiLine
+		}
+	}
+
+	// convert the map into an array
+	combiLineSlice := make([]*CombiLine, 0)
+	for _, combiLine := range combiLineMap {
+		combiLineSlice = append(combiLineSlice, combiLine)
+	}
+
+	// print JSON
+	jsonStr, err := json.Marshal(combiLineSlice)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Print(string(jsonStr[:]))
+}
+
+func parseCombiData(member OsmRelation) CombiData {
+	var operatorTag *OsmTag
+	var nameTag *OsmTag
+	var refTag *OsmTag
+	var colorTag *OsmTag
+
+	for _, tag := range member.Tags {
+		if tag.K == "operator" {
+			operatorTag = &tag
+			continue
+		}
+		if tag.K == "name" {
+			nameTag = &tag
+			continue
+		}
+		if tag.K == "ref" {
+			refTag = &tag
+			continue
+		}
+		if tag.K == "colour" {
+			colorTag = &tag
+			continue
+		}
+	}
+
+	if operatorTag == nil {
+		log.Fatalf("Found a SIT member without an operator tag, with id %d\n", member.Id)
+	}
+	if nameTag == nil {
+		log.Fatalf("Found a SIT member without a name tag, with id %d\n", member.Id)
+	}
+	if refTag == nil {
+		log.Fatalf("Found a SIT member without a ref tag, with id %d\n", member.Id)
+	}
+	if colorTag == nil {
+		log.Fatalf("Found a SIT member without a colour tag, with id %d\n", member.Id)
+	}
+
+	return CombiData{
+		Id:      parseLineId(operatorTag.V),
+		Company: operatorTag.V,
+		Name:    nameTag.V,
+		Ref:     refTag.V,
+		Color:   colorTag.V,
 	}
 }
 
-func parseRoute(routeName string) (string, error) {
+// Extracts the id from a  line name.
-	// There are 3 types of route name formats:
+// E.g.: "C11 - Cotum" -> 11
-	// Combi xx : ____
+func parseLineId(lineName string) int {
-	// Curster xx : ____
+	regex := regexp.MustCompile("C(\\d+) - .+")
-	// xx : ___
+	groups := regex.FindStringSubmatch(lineName)
-
+	if groups == nil {
-	// attempt first format
+		panic(fmt.Sprintf("Found an invalid line name (doesnt match format): %s", lineName))
-	match := regexp.MustCompile("Combi (.+) :.+").FindStringSubmatch(routeName)
-	if match != nil {
-		return match[1], nil
-	}
-	match = regexp.MustCompile("Custer (.+) :.+").FindStringSubmatch(routeName)
-	if match != nil {
-		return match[1], nil
-	}
-	match = regexp.MustCompile("(.+) :.+").FindStringSubmatch(routeName)
-	if match != nil {
-		return match[1], nil
 	}
 
-	// Return an error
+	number, err := strconv.Atoi(groups[1])
-	return "", errors.New(fmt.Sprintf("Route %s did not match any pattern", routeName))
+	if err != nil {
+		panic(err)
+	}
+
+	return number
 }