React Reddit Voting

redditvote.js

const [vote, setVote] = useState<Vote>("none"); 
const handleVote = (v: Vote) => {
    let increment = 0;
    if (v === "up") {
        increment = 1;
        setVote("up");
    }
    if (v === "down") {
        increment = -1;
        setVote("down");
    }
    if (vote === "down" && v === "up") increment = 2;
    if (vote === "up" && v === "down") increment = -2;
    if (vote === "down" && v === "down") {
        increment = 1;
        setVote("none");
    }
    if (vote === "up" && v === "up") {
        increment = -1;
        setVote("none");
    }

    setPoints(points + increment);
};