1
0
Fork 0
spacetraders/nodejs/database/systems.ts

51 lines
1.9 KiB
TypeScript

import { DbData, db } from './db.ts';
import { System, Waypoint } from '../lib/types.ts';
const addSystemStatement = db.prepare(`INSERT INTO systems(data) VALUES (json(?));`);
const getSystemStatement = db.prepare(`SELECT data FROM systems WHERE data->>'symbol' = ?;`);
const getSystemUpdatedStatement = db.prepare(`SELECT updated FROM systems WHERE data->>'symbol' = ?;`);
const getSystemsCountStatement = db.prepare(`SELECT COUNT(data) as data FROM systems;`);
const setSystemStatement = db.prepare(`UPDATE systems SET data = json(:data), updated = :date WHERE data->>'symbol' = :symbol;`);
const setSystemWaypointsStatement = db.prepare(`UPDATE systems SET data = (SELECT json_set(data, '$.waypoints', json(:waypoints)) FROM systems WHERE data->>'symbol' = :symbol), updated = :date WHERE data->>'symbol' = :symbol;`);
export function addSystem(data: System): void {
addSystemStatement.run(JSON.stringify(data)).lastInsertRowid;
}
export function getSystem(symbol: string): System|null {
const data = getSystemStatement.get(symbol) as DbData|undefined;
if (!data) return null;
return JSON.parse(data.data);
}
export function getSystemsCount(): number {
const data = getSystemsCountStatement.get() as number|undefined;
if (!data) return 0;
return data;
}
export function getSystemUpdated(symbol: string): Date|null {
const data = getSystemUpdatedStatement.get(symbol) as {updated: Date}|undefined;
if (!data) return null;
return data.updated;
}
export function setSystem(data: System): void {
if (getSystem(data.symbol) === null) {
addSystem(data);
} else {
setSystemStatement.run({
data: JSON.stringify(data),
date: new Date().toISOString(),
symbol: data.symbol,
});
}
}
export function setSystemWaypoints(symbol: string, waypoints: Array<Waypoint>): void {
setSystemWaypointsStatement.run({
date: new Date().toISOString(),
symbol: symbol,
waypoints: JSON.stringify(waypoints),
});
}