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spacetraders/nodejs/database/ships.ts

55 lines
2.1 KiB
TypeScript

import { DbData, db } from './db.ts';
import { Cargo } from '../model/cargo.ts';
import { Fuel, Nav, Ship } from '../model/ship.ts';
const addShipStatement = db.prepare(`INSERT INTO ships(data) VALUES (json(?));`);
const getShipStatement = db.prepare(`SELECT data FROM ships WHERE data->>'symbol' = ?;`);
const getShipsAtStatement = db.prepare(`SELECT data FROM ships WHERE data->>'$.nav.systemSymbol' = ?;`);
const setShipCargoStatement = db.prepare(`UPDATE ships SET data = (SELECT json_set(data, '$.cargo', json(:cargo)) FROM ships WHERE data->>'symbol' = :symbol) WHERE data->>'symbol' = :symbol;`);
const setShipFuelStatement = db.prepare(`UPDATE ships SET data = (SELECT json_set(data, '$.fuel', json(:fuel)) FROM ships WHERE data->>'symbol' = :symbol) WHERE data->>'symbol' = :symbol;`);
const setShipNavStatement = db.prepare(`UPDATE ships SET data = (SELECT json_set(data, '$.nav', json(:nav)) FROM ships WHERE data->>'symbol' = :symbol) WHERE data->>'symbol' = :symbol;`);
const updateShipStatement = db.prepare(`UPDATE ships SET data = json(:data) WHERE data->>'symbol' = :symbol;`);
export function getShip(symbol: string): Ship|null {
const data = getShipStatement.get(symbol) as DbData|undefined;
if (!data) return null;
return JSON.parse(data.data);
}
export function getShipsAt(symbol: string): Array<Ship> {
const data = getShipsAtStatement.all(symbol) as Array<DbData>;
return data.map(elt => JSON.parse(elt.data));
}
export function setShip(data: Ship): void {
if (getShip(data.symbol) === null) {
addShipStatement.run(JSON.stringify(data));
} else {
updateShipStatement.run({
data: JSON.stringify(data),
symbol: data.symbol,
});
}
}
export function setShipCargo(symbol: string, cargo: Cargo): void {
setShipCargoStatement.run({
cargo: JSON.stringify(cargo),
symbol: symbol,
});
}
export function setShipFuel(symbol: string, fuel: Fuel): void {
setShipFuelStatement.run({
fuel: JSON.stringify(fuel),
symbol: symbol,
});
}
export function setShipNav(symbol: string, nav: Nav): void {
setShipNavStatement.run({
nav: JSON.stringify(nav),
symbol: symbol,
});
}