From d668eac4a63a9aa98c3efff395faa23cfcea1c1b Mon Sep 17 00:00:00 2001
From: Julien Dessaux
Date: Thu, 21 Mar 2024 17:08:37 +0100
Subject: [node] begin the great typescript rewrite

---
 nodejs/automation/contracting.ts | 72 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 nodejs/automation/contracting.ts

(limited to 'nodejs/automation/contracting.ts')

diff --git a/nodejs/automation/contracting.ts b/nodejs/automation/contracting.ts
new file mode 100644
index 0000000..2857778
--- /dev/null
+++ b/nodejs/automation/contracting.ts
@@ -0,0 +1,72 @@
+import { Contract } from '../model/contract.ts';
+import { Ship } from '../model/ship.ts';
+import * as mining from './mining.js';
+import * as selling from './selling.js';
+import * as dbContracts from '../database/contracts.ts';
+import * as dbShips from '../database/ships.ts';
+import * as api from '../lib/api.ts';
+import * as contracts from '../lib/contracts.ts';
+import * as libShips from '../lib/ships.ts';
+import * as systems from '../lib/systems.ts';
+import * as utils from '../lib/utils.ts';
+
+export async function init() {
+	const cs = dbContracts.getContracts();
+	cs.forEach(contract => run(contract));
+}
+
+async function run(contract: Contract) {
+	await contracts.accept(contract);
+	const contractSystem = utils.systemFromWaypoint(contract.terms.deliver[0].destinationSymbol);
+	let ships = dbShips.getShipsAt(contractSystem);
+	ships = ships.filter(ship => ship.registration.role !== 'SATELLITE'); // filter out probes
+
+	switch(contract.type) {
+		case 'PROCUREMENT':
+			await runProcurement(contract, ships);
+			break;
+		default:
+			throw `Handling of contract type ${contract.type} is not implemented yet`;
+	}
+}
+
+async function runProcurement(contract: Contract, ships: Array<Ship>) {
+	// TODO check if contract is fulfilled!
+	const wantedCargo = contract.terms.deliver[0].tradeSymbol;
+	const deliveryPoint = contract.terms.deliver[0].destinationSymbol;
+	const asteroids = await systems.type({symbol: ships[0].nav.systemSymbol, type: 'ENGINEERED_ASTEROID'});
+	const asteroidSymbol = asteroids[0].symbol;
+	ships.forEach(async function(ship) {
+		while (!contract.fulfilled) {
+			ship = dbShips.getShip(ship.symbol) as Ship;
+			let goodCargo = ship.cargo.inventory.filter(i => i.symbol === wantedCargo)[0]
+			// If we are in transit, we wait until we arrive
+			const delay = new Date(ship.nav.route.arrival).getTime() - new Date().getTime();
+			if (delay > 0) await api.sleep(delay);
+			// Then it depends on where we are
+			switch (ship.nav.waypointSymbol) {
+				case asteroidSymbol:
+					await mining.mineUntilFullOf({
+						asteroidSymbol: asteroidSymbol,
+						good: wantedCargo,
+						symbol: ship.symbol
+					});
+					await libShips.navigate(ship, deliveryPoint);
+					break;
+				case deliveryPoint:
+					if (goodCargo !== undefined) { // we could be here if a client restart happens right after selling before we navigate away
+						console.log(`delivering ${goodCargo.units} of ${wantedCargo}`);
+						contract = await contracts.deliver(contract, ship);
+						if (contract.fulfilled) break;
+					}
+					await libShips.navigate(ship, asteroidSymbol);
+					break;
+				default:
+					// we were either selling or started contracting
+					await selling.sell(ship, wantedCargo);
+					await libShips.navigate(ship, asteroidSymbol);
+			}
+		}
+		// TODO repurpose the ship
+	});
+}
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