lisk-framework
Version:
Lisk blockchain application platform
59 lines • 2.06 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.EscrowStore = exports.escrowStoreSchema = void 0;
const lisk_db_1 = require("@liskhq/lisk-db");
const base_store_1 = require("../../base_store");
exports.escrowStoreSchema = {
$id: '/token/store/escrow',
type: 'object',
required: ['amount'],
properties: {
amount: {
dataType: 'uint64',
fieldNumber: 1,
},
},
};
class EscrowStore extends base_store_1.BaseStore {
constructor() {
super(...arguments);
this.schema = exports.escrowStoreSchema;
}
getKey(escrowChainID, tokenID) {
return Buffer.concat([escrowChainID, tokenID]);
}
async getOrDefault(ctx, key) {
let escrowData;
try {
escrowData = await this.get(ctx, key);
}
catch (error) {
if (!(error instanceof lisk_db_1.NotFoundError)) {
throw error;
}
escrowData = { amount: BigInt(0) };
}
return escrowData;
}
async createDefaultAccount(context, chainID, tokenID) {
await this.set(context, this.getKey(chainID, tokenID), { amount: BigInt(0) });
}
async addAmount(context, chainID, tokenID, amount) {
const escrowKey = this.getKey(chainID, tokenID);
const escrowData = await this.getOrDefault(context, escrowKey);
escrowData.amount += amount;
await this.set(context, escrowKey, escrowData);
}
async deductEscrowAmountWithTerminate(context, interopMethod, sendingChainID, tokenID, amount) {
const escrowKey = this.getKey(sendingChainID, tokenID);
const escrowData = await this.getOrDefault(context, escrowKey);
if (escrowData.amount < amount) {
await interopMethod.terminateChain(context, sendingChainID);
return;
}
escrowData.amount -= amount;
await this.set(context, escrowKey, escrowData);
}
}
exports.EscrowStore = EscrowStore;
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