walking legs: expose distance

docs/changelog.md

@@ -12,6 +12,7 @@ This version is not fully backwords-compatible. Check out [the migration guide](
 - 021ae45 `journeys()`/`journeyLeg()`: leg stopovers: parse & expose platforms
 - 84bce0c `arrivals()`/`departures()`: parse & expose platforms
 - 85e0bdf `journeys()`: `startWithWalking` option with default `true`
+- f6ae29c journey legs with `type: 'walking'` now have a `distance` in meters
 
 ### breaking changes 💥
 

parse/journey-leg.js

@@ -80,6 +80,7 @@ const createParseJourneyLeg = (profile, opt, data) => {
 		if (pt.type === 'WALK') {
 			res.mode = 'walking'
 			res.public = true
+			res.distance = pt.gis && pt.gis.dist || null
 		} else if (pt.type === 'JNY') {
 			// todo: pull `public` value from `profile.products`
 			res.id = pt.jny.jid

test/lib/validators.js

@@ -191,7 +191,13 @@ const createValidateJourneyLeg = (cfg) => {
 			}
 		}
 
-		if (leg.mode !== 'walking') {
+		if (leg.mode === 'walking') {
+			if (leg.distance !== null) {
+				const msg = name + '.distance must be '
+				a.strictEqual(typeof leg.distance, 'number', msg + 'a number')
+				a.ok(leg.distance > 0, msg + '> 0')
+			}
+		} else {
 			const msg = name + '.direction must be a string'
 			a.strictEqual(typeof leg.direction, 'string', msg)
 			a.ok(leg.direction, name + '.direction must not be empty')