add docs and fix lint

src/utils/DIDResolved.ts

@@ -4,11 +4,7 @@ DIDResolver module to resolve Ocean DID's off the block chain
 
 */
 
-// import DIDRegistry from "../keeper/contracts/DIDRegistry"
 import DIDRecord from "../models/DIDRecord"
-// import ValueType from "../models/ValueType"
-
-// import * as Web3 from "web3"
 import * as DIDTools from "../utils/DIDTools"
 
 export default class DIDResolved {
@@ -18,13 +14,27 @@ export default class DIDResolved {
     public constructor() {
         this.items = []
     }
-
+    /*
-    public addData(data: DIDRecord) {
+     * Add the DIDRecord to the collection of visited DID's
+     *
+     * :param data: DIDRecord to add
+     */
+    public addData(data: DIDRecord): void {
         this.items.push(data)
     }
+
+    /*
+     * Number of hops performed
+     * :return hop count
+     */
     public hopCount(): number {
         return this.items.length
     }
+
+    /* Get the last DID record added by the resolver
+     *
+     * :return DIDRecord of the last resolved item
+     */
     public getLastItem(): DIDRecord {
         let result: DIDRecord = null
         if ( this.items.length > 0 ) {
@@ -33,21 +43,67 @@ export default class DIDResolved {
         return result
     }
 
+    /*
+     * :return true if the resolved result is a URL
+     */
     public isURL(): boolean {
         const item = this.getLastItem()
         return item && item.valueType === "URL"
     }
 
+    /*
+     * :return true if the resolved result is an on chain DDO
+     */
     public isDDO(): boolean {
         const item = this.getLastItem()
         return item && item.valueType === "DDO"
     }
 
+    /*
+     * :return true if the resolved result is another DID
+     */
     public isDID(): boolean {
         const item = this.getLastItem()
         return item && (item.valueType === "DID"  || item.valueType === "DIDRef")
     }
 
+    /*
+     * :return the stored key value for this DID resolved record
+     */
+    public getKey(): string {
+        const item = this.getLastItem()
+        if ( item ) {
+            return item.key
+        }
+        return null
+    }
+
+    /*
+     * :return the owner of the resolved record
+     */
+    public getOwner(): string {
+        const item = this.getLastItem()
+        if ( item ) {
+            return item.owner
+        }
+        return null
+    }
+
+    /*
+     * :return the ValueType ( URL, DDO, DID, DIDRef )
+     */
+    public getValueType(): ValueType {
+        const item = this.getLastItem()
+        if ( item ) {
+            return item.valueType
+        }
+        return null
+    }
+
+    /*
+     * :return the value of the resolved record, if it's a DID
+     * this call will return an ocean DID instead of in internal Id.
+     */
     public getValue(): string {
         const item = this.getLastItem()
         let result: string = null
@@ -61,8 +117,16 @@ export default class DIDResolved {
         return result
     }
 
+    /*
+     * Used by the resolver to check to see if the DID record has been
+     * visited before, to stop circular links.
+     *
+     * :param didId: 32 byte id that has been visited
+     *
+     * :return true if this 32 byte value is already in the list of DID records
+     */
     public isDIDIdVisited(didId: string): boolean {
-        for ( let item of this.items) {
+        for ( const item of this.items) {
             if ( item.didId === didId ) {
                 return true
             }

src/utils/DIDResolver.ts

@@ -64,8 +64,7 @@ export default class DIDResolver {
                 // only look if we have another id to find
                 if ( didId ) {
                     data = await this.getDID(didId)
-                }
+                } else {
-                else {
                     data = null
                 }
             }