1const bigInt = require("snarkjs").bigInt;
 2
 3class SMTMemDb {
 4    constructor() {
 5        this.nodes = {};
 6        this.root = bigInt(0);
 7    }
 8
 9    async getRoot() {
10        return this.root;
11    }
12
13    async get(key) {
14        const res = [];
15        const keyS = bigInt(key).leInt2Buff(32).toString("hex");
16        for (let i=0; i<this.nodes[keyS].length; i++) {
17            res.push(bigInt(this.nodes[keyS][i]));
18        }
19        return res;
20    }
21
22    async save(root, inserts) {
23        for (let i=0; i<inserts.length; i++) {
24            const keyS = bigInt(inserts[i][0]).leInt2Buff(32).toString("hex");
25            this.nodes[keyS] = inserts[i][1];
26        }
27        this.root = root;
28    }
29}
30
31module.exports = SMTMemDb;