feat: prepare for new randomWalk config parameters

As per: https://github.com/libp2p/js-libp2p-kad-dht/issues/76

fix: pass whole dht config into DHT constructor

src/config.js

@@ -34,7 +34,12 @@ const OptionsSchema = Joi.object({
     dht: Joi.object().keys({
       kBucketSize: Joi.number().default(20),
       enabled: Joi.boolean().default(true),
-      enabledDiscovery: Joi.boolean().default(true),
+      randomWalk: Joi.object().keys({
+        enabled: Joi.boolean().default(true),
+        queriesPerPeriod: Joi.number().default(1),
+        interval: Joi.number().default(30000),
+        timeout: Joi.number().default(10000)
+      }).default(),
       validators: Joi.object().allow(null),
       selectors: Joi.object().allow(null)
     }).default(),

src/index.js

@@ -105,14 +105,10 @@ class Node extends EventEmitter {
     // dht provided components (peerRouting, contentRouting, dht)
     if (this._config.dht.enabled) {
       const DHT = this._modules.dht
-      const enabledDiscovery = this._config.dht.enabledDiscovery !== false
 
       this._dht = new DHT(this._switch, {
-        kBucketSize: this._config.dht.kBucketSize,
-        enabledDiscovery,
         datastore: this.datastore,
-        validators: this._config.dht.validators,
+        ...this._config.dht
-        selectors: this._config.dht.selectors
       })
     }
 

test/config.spec.js

@@ -96,7 +96,12 @@ describe('configuration', () => {
         dht: {
           kBucketSize: 20,
           enabled: true,
-          enabledDiscovery: true
+          randomWalk: {
+            enabled: true,
+            queriesPerPeriod: 1,
+            interval: 30000,
+            timeout: 10000
+          }
         },
         relay: {
           enabled: true
@@ -185,7 +190,12 @@ describe('configuration', () => {
         dht: {
           kBucketSize: 20,
           enabled: true,
-          enabledDiscovery: true,
+          randomWalk: {
+            enabled: true,
+            queriesPerPeriod: 1,
+            interval: 30000,
+            timeout: 10000
+          },
           selectors,
           validators
         }

test/utils/bundle-browser.js

@@ -80,7 +80,9 @@ class Node extends libp2p {
         },
         dht: {
           kBucketSize: 20,
-          enabledDiscovery: true,
+          randomWalk: {
+            enabled: true
+          },
           enabled: false
         },
         EXPERIMENTAL: {

test/utils/bundle-nodejs.js

@@ -73,7 +73,9 @@ class Node extends libp2p {
         },
         dht: {
           kBucketSize: 20,
-          enabledDiscovery: true,
+          randomWalk: {
+            enabled: true
+          },
           enabled: true
         },
         EXPERIMENTAL: {