Add estimatedMatching to qfRoundHistoryResolver response

src/entities/project.ts

@@ -50,6 +50,7 @@ import {
   getProjectDonationsSqrtRootSum,
   getQfRoundTotalProjectsDonationsSum,
 } from '../repositories/qfRoundRepository';
+import { EstimatedMatching } from '../types/qfTypes';
 // tslint:disable-next-line:no-var-requires
 const moment = require('moment');
 
@@ -121,18 +122,6 @@ export enum ReviewStatus {
   NotListed = 'Not Listed',
 }
 
-@ObjectType()
-class EstimatedMatching {
-  @Field(type => Float)
-  projectDonationsSqrtRootSum: number;
-
-  @Field(type => Float)
-  allProjectsSum: number;
-
-  @Field(type => Float)
-  matchingPool: number;
-}
-
 @Entity()
 @ObjectType()
 export class Project extends BaseEntity {

src/entities/qfRoundHistory.ts

@@ -13,6 +13,12 @@ import {
 } from 'typeorm';
 import { Project } from './project';
 import { QfRound } from './qfRound';
+import {
+  findQfRoundById,
+  getProjectDonationsSqrtRootSum,
+  getQfRoundTotalProjectsDonationsSum,
+} from '../repositories/qfRoundRepository';
+import { EstimatedMatching } from '../types/qfTypes';
 
 @Entity()
 @ObjectType()
@@ -70,4 +76,26 @@ export class QfRoundHistory extends BaseEntity {
 
   @CreateDateColumn()
   createdAt: Date;
+
+  // In your main class
+  @Field(type => EstimatedMatching, { nullable: true })
+  async estimatedMatching(): Promise<EstimatedMatching | null> {
+    const projectDonationsSqrtRootSum = await getProjectDonationsSqrtRootSum(
+      this.projectId,
+      this.qfRoundId,
+    );
+
+    const allProjectsSum = await getQfRoundTotalProjectsDonationsSum(
+      this.qfRoundId,
+    );
+    const qfRound = await findQfRoundById(this.qfRoundId);
+
+    const matchingPool = qfRound!.allocatedFund;
+
+    return {
+      projectDonationsSqrtRootSum: projectDonationsSqrtRootSum.sqrtRootSum,
+      allProjectsSum: allProjectsSum.sum,
+      matchingPool,
+    };
+  }
 }

src/resolvers/qfRoundHistoryResolver.test.ts

@@ -90,5 +90,10 @@ function getQfRoundHistoryTestCases() {
     assert.equal(qfRoundHistory.donationsCount, 2);
     assert.equal(qfRoundHistory.uniqueDonors, 1);
     assert.equal(qfRoundHistory.raisedFundInUsd, 25);
+    assert.exists(qfRoundHistory.estimatedMatching);
+    assert.equal(
+      qfRoundHistory.estimatedMatching.matchingPool,
+      qfRound.allocatedFund,
+    );
   });
 }

src/types/qfTypes.ts

@@ -0,0 +1,13 @@
+import { Field, Float, ObjectType } from 'type-graphql';
+
+@ObjectType()
+export class EstimatedMatching {
+  @Field(type => Float)
+  projectDonationsSqrtRootSum: number;
+
+  @Field(type => Float)
+  allProjectsSum: number;
+
+  @Field(type => Float)
+  matchingPool: number;
+}

test/graphqlQueries.ts

@@ -773,6 +773,11 @@ export const getQfRoundHistoryQuery = `
         matchingFund
         distributedFundNetwork
         distributedFundTxHash
+        estimatedMatching {
+         projectDonationsSqrtRootSum
+         allProjectsSum
+         matchingPool
+        }
       }
     }
 `;