feat: add ability to use qv voting

.env.example

@@ -97,3 +97,6 @@ BLOB_READ_WRITE_TOKEN=""
 
 # URL with tally-{pollId}.json hosted
 NEXT_PUBLIC_TALLY_URL=https://upblxu2duoxmkobt.public.blob.vercel-storage.com
+
+# Whether the poll is in qv or non qv mode
+NEXT_PUBLIC_POLL_MODE="non-qv"

src/config.ts

@@ -27,6 +27,7 @@ export const config = {
   maciSubgraphUrl: process.env.NEXT_PUBLIC_MACI_SUBGRAPH_URL ?? "",
   tallyUrl: process.env.NEXT_PUBLIC_TALLY_URL,
   roundOrganizer: process.env.NEXT_PUBLIC_ROUND_ORGANIZER ?? "Optimism",
+  pollMode: process.env.NEXT_PUBLIC_POLL_MODE ?? "non-qv",
 };
 
 export const theme = {

src/contexts/Ballot.tsx

@@ -1,6 +1,8 @@
 import React, { createContext, useContext, useState, useEffect, useMemo, useCallback } from "react";
 import { useAccount } from "wagmi";
 
+import { config } from "~/config";
+
 import type { BallotContextType, BallotProviderProps } from "./types";
 import type { Ballot, Vote } from "~/features/ballot/types";
 
@@ -13,9 +15,14 @@ export const BallotProvider: React.FC<BallotProviderProps> = ({ children }: Ball
 
   const { isDisconnected } = useAccount();
 
+  // when summing the ballot we take the individual vote and square it
+  // if the mode is quadratic voting, otherwise we just add the amount
   const sumBallot = useCallback(
     (votes?: Vote[]) =>
-      (votes ?? []).reduce((sum, x) => sum + (!Number.isNaN(Number(x.amount)) ? Number(x.amount) : 0), 0),
+      (votes ?? []).reduce((sum, x) => {
+        const amount = !Number.isNaN(Number(x.amount)) ? Number(x.amount) : 0;
+        return sum + (config.pollMode === "qv" ? amount ** 2 : amount);
+      }, 0),
     [],
   );
 
@@ -71,7 +78,7 @@ export const BallotProvider: React.FC<BallotProviderProps> = ({ children }: Ball
     localStorage.removeItem("ballot");
   }, [setBallot]);
 
-  // set published to tru
+  // set published to true
   const publishBallot = useCallback(() => {
     setBallot({ ...ballot, published: true });
   }, [ballot, setBallot]);

src/env.js

@@ -69,6 +69,8 @@ export const env = createEnv({
     NEXT_PUBLIC_MACI_SUBGRAPH_URL: z.string().url().optional(),
 
     NEXT_PUBLIC_TALLY_URL: z.string().url(),
+
+    NEXT_PUBLIC_POLL_MODE: z.enum(["qv", "non-qv"]).default("non-qv"),
   },
 
   /**
@@ -107,6 +109,8 @@ export const env = createEnv({
     NEXT_PUBLIC_MACI_SUBGRAPH_URL: process.env.NEXT_PUBLIC_MACI_SUBGRAPH_URL,
 
     NEXT_PUBLIC_TALLY_URL: process.env.NEXT_PUBLIC_TALLY_URL,
+
+    NEXT_PUBLIC_POLL_MODE: process.env.NEXT_PUBLIC_POLL_MODE,
   },
   /**
    * Run `build` or `dev` with `SKIP_ENV_VALIDATION` to skip env validation. This is especially

src/features/projects/components/AddToBallot.tsx

@@ -34,7 +34,7 @@ const ProjectAllocation = ({
   const form = useFormContext();
   const formAmount = form.watch("amount") as string;
   const amount = formAmount ? parseFloat(String(formAmount).replace(/,/g, "")) : 0;
-  const total = amount + current;
+  const total = (config.pollMode === "qv" ? amount ** 2 : amount) + current;
   const { initialVoiceCredits } = useMaci();
 
   const exceededProjectTokens = amount > initialVoiceCredits;
@@ -125,7 +125,7 @@ export const ProjectAddToBallot = ({ id = "", name = "" }: IProjectAddToBallotPr
 
           {!ballot?.published && inBallot && (
             <IconButton icon={Check} variant="primary" onClick={handleOpen}>
-              {formatNumber(inBallot.amount)} allocated
+              {formatNumber(config.pollMode === "qv" ? inBallot.amount ** 2 : inBallot.amount)} allocated
             </IconButton>
           )}
 
@@ -151,7 +151,7 @@ export const ProjectAddToBallot = ({ id = "", name = "" }: IProjectAddToBallotPr
             amount: z
               .number()
               .min(0)
-              .max(Math.min(initialVoiceCredits, initialVoiceCredits - sum))
+              .max(Math.sqrt(Math.min(initialVoiceCredits, initialVoiceCredits - sum)))
               .default(0),
           })}
           onSubmit={({ amount }) => {

src/features/projects/hooks/useSelectProjects.ts

@@ -27,7 +27,6 @@ export function useSelectProjects(): IUseSelectProjectsReturn {
 
   return {
     count: toAdd.length,
-    // isLoading: add.isPending,
     add: () => {
       addToBallot(toAdd, pollId!);
       setSelected({});