Add redeem to CL4R (#577)

* Package version 0.2.85

* add redeem to cl4rep

* bump version

* update jest-ts

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@daostack/arc.js",
-  "version": "0.2.85",
+  "version": "0.2.86",
   "description": "",
   "keywords": [],
   "main": "dist/lib/index.js",
@@ -95,7 +95,7 @@
     "rollup-plugin-node-resolve": "^3.4.0",
     "rollup-plugin-sourcemaps": "^0.4.2",
     "rollup-plugin-typescript2": "^0.20.1",
-    "ts-jest": "^24.0.2",
+    "ts-jest": "^26.4.4",
     "ts-node": "^7.0.1",
     "tslint": "^5.18.0",
     "tslint-config-standard": "^8.0.1",

src/schemes/cl4rep.ts

@@ -35,7 +35,6 @@ export class CL4RScheme {
     const constB = new Decimal(realMathToNumber(new BN(repRewardConstB)))
     const constA = new Decimal(realMathToBN(new BN(repRewardConstA)).toString())
     return constA.times(constB.toPower(batchIndex))
-
   }
 
   public async getAgreementHash(): Promise<string> {
@@ -149,6 +148,33 @@ export class CL4RScheme {
       return toIOperationObservable(observable)
     }
 
+    public redeem(beneficiary: Address, lockingId: number): Operation<any> {
+      const mapReceipt = (receipt: any) => {
+        return receipt
+      }
+
+      const observable = from(this.getContract())
+        .pipe(
+        concatMap((contract) => {
+          let transaction: any
+          transaction = contract.methods.redeem(
+            beneficiary,
+            lockingId
+          )
+          const errorHandler = async (error: Error) => {
+            try {
+              await transaction.call()
+            } catch (err) {
+              throw err
+            }
+            return error
+          }
+          return this.scheme.context.sendTransaction(transaction, mapReceipt, errorHandler)
+        })
+      )
+      return toIOperationObservable(observable)
+    }
+
   public async getContract() {
     const state = await this.scheme.fetchStaticState()
     await this.scheme.context.fetchContractInfos({fetchPolicy: 'network-only'})