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spacetraders/nodejs/database/contracts.ts

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1.1 KiB
TypeScript

import { Contract } from '../model/contract.ts';
import db from './db.ts';
const addContractStatement = db.prepare(`INSERT INTO contracts(data) VALUES (json(?));`);
const getContractStatement = db.prepare(`SELECT data FROM contracts WHERE data->>'id' = ?;`);
const getContractsStatement = db.prepare(`SELECT data FROM contracts WHERE data->>'fulfilled' = false;`);
const updateContractStatement = db.prepare(`UPDATE contracts SET data = json(:data) WHERE data->>'id' = :id;`);
export function getContract(id: string): Contract|null {
const data = getContractStatement.get(id) as {data: string}|undefined;
if (!data) return null;
return JSON.parse(data.data);
}
export function getContracts(): Array<Contract> {
const data = getContractsStatement.all() as Array<{data: string}>;
return data.map(contractData => JSON.parse(contractData.data));
}
export function setContract(data: Contract) {
if (getContract(data.id) === null) {
addContractStatement.run(JSON.stringify(data));
} else {
updateContractStatement.run({
data: JSON.stringify(data),
id: data.id,
});
}
}