Automated the extraction and delivery loop for a ship

3 files changed, 92 insertions, 112 deletions

diff --git a/lib/agent.js b/lib/agent.js
index 69e64a5..18dbac3 100644
--- a/lib/agent.js
+++ b/lib/agent.js
@@ -4,114 +4,85 @@ import * as contracts from './contracts.js';
 import * as ships from './ships.js';
 import * as systems from './systems.js';
 
-// This starts a delivery loop with a ship which ends when the delivery is fullfilled
-// ctx must must have multiple attributes: `ship`, `contract` (with the contractId), `good`, `destination` (the delivery waypoint), `field` (the asteroid field waypoint). The ship needs to be orbiting the asteroid field.
-//export function deliver(ctx, response) {
-//	let next = {...ctx};
-//	next.action = deliver; // calling ourselves after the action is a good default
-//	if (response !== undefined) {
-//		if (response.error !== undefined) {
-//	console.log("ctx:", JSON.stringify(ctx, null, 2));
-//	console.log("response:", JSON.stringify(response, null, 2));
-//			switch(response.error.code) {
-//			case 4000: // ship is on cooldown
-//				setTimeout(deliver, response.error.data.cooldown.remainingSeconds  * 1000, ctx);
-//				return;
-//			case 4228: // ship cannot extract because it is full. Running the ship inventory function to list the cargo so that we know if we need to sell
-//				ships.ship({ship: ctx.ship, next: next});
-//				return;
-//			default: // yet unhandled error
-//				throw response;
-//			}
-//		}
-//		if (response.data.extraction !== undefined && response.data.extraction.yield !== undefined) { // yield won't be defined if we reached this point from an inventory request
-//			console.log(`${ctx.ship}: extracted ${response.data.extraction.yield.units} of ${response.data.extraction.yield.symbol}`);
-//		}
-//		if (response.data.cargo !== undefined && response.data.cargo.capacity * 0.9 <= response.data.cargo.units) { // > 90% full
-//			const good = response.data.cargo.inventory.filter(i => i.symbol === ctx.good)[0];
-//			const inventory = response.data.cargo.inventory.filter(i => i.symbol !== ctx.good);
-//			if (good?.units >= response.data.cargo.capacity * 0.9) { // > 90% full
-//				console.log(`ship's cargo is full with ${good.units} of ${ctx.good}!`);
-//				next.units = good.units; // set the unit property so that we know how much to deliver
-//				ships.navigate({ship: ctx.ship, waypoint: ctx.destination, next: next});
-//			}
-//			let actions = [{ action: ships.dock, ship: ctx.ship }];
-//			inventory.forEach(i => actions.push({action: ships.sell, ship: ctx.ship, good: i.symbol, units: i.units}));
-//			actions.push({action: ships.orbit, ship: ctx.ship});
-//			actions.push({action: deliver, ship: ctx.ship, good: ctx.good});
-//			api.chain(actions);
-//			return;
-//		} else if (response.data.nav !== undefined) { // we are moving
-//			const delay = new Date(response.data.nav.route.arrival) - new Date();
-//			console.log(new Date(response.data.nav.route.arrival), new Date(), delay);
-//			if (delay > 0) { // the ship did not arrive yet, we wait
-//				setTimeout(deliver, delay+1000, ctx, response);
-//				return;
-//			}
-//			if (response.data.nav.route.destination.symbol === ctx.destination) { // we arrived to the delivery point
-//				api.chain([{ action: ships.dock, ship: ctx.ship },
-//					   { action: ships.refuel, ship: ctx.ship },
-//					   { action: ships.deliver, contract: ctx.contract, ship: ctx.ship, good: ctx.good, units: ctx.units },
-//					   { action: ships.navigate, ship: ctx.ship, waypoint: ctx.field, next: next }]);
-//				return;
-//			} else if (next.units !== undefined) { // we arrived to the asteroid field
-//				delete next.units; // remove the unit property
-//				api.chain([{ action: ships.dock, ship: ctx.ship },
-//					   { action: ships.refuel, ship: ctx.ship },
-//					   { action: ships.orbit, ship: ctx.ship, next: next }]); // TODO we are on cooldown and cannot mine right now
-//				return;
-//			}
-//		} else { // we need to mine more
-//			if (response.data.cooldown) { // we are on cooldown, call ourselves again in a moment
-//				setTimeout(deliver, response.data.cooldown.remainingSeconds  * 1000, ctx);
-//				return;
-//			}
-//		}
-//	}
-//	ships.extract({ship: ctx.ship, good: ctx.good, next: next});
-//}
-//
-//// This starts an extraction loop with a ship which ends when the ship's cargo is at least 90% full with only one desired good
-//// ctx must must have two attributes: `ship` and `good`. The ship needs to be orbiting an asteroid field
-//export function extract(ctx, response) {
-//	if (response !== undefined) {
-//		if (response.error !== undefined) {
-//			switch(response.error.code) {
-//			case 4000: // ship is on cooldown
-//				setTimeout(extract, response.error.data.cooldown.remainingSeconds  * 1000, ctx);
-//				return;
-//			case 4228: // ship is full. Running the ship inventory function to list the cargo so that know if we need to sell
-//				ships.ship({ship: ctx.ship, next:{action: extract, ship: ctx.ship, good: ctx.good}});
-//				return;
-//			default:
-//				throw response;
-//			}
-//		}
-//		if (response.data.extraction !== undefined && response.data.extraction.yield !== undefined) { // yield won't be defined if we reached this point from an inventory request
-//			console.log(`${ctx.ship}: extracted ${response.data.extraction.yield.units} of ${response.data.extraction.yield.symbol}`);
-//		}
-//		if (response.data.cargo !== undefined && response.data.cargo.capacity * 0.9 <= response.data.cargo.units) { // > 90% full
-//			const good = response.data.cargo.inventory.filter(i => i.symbol === ctx.good)[0];
-//			const inventory = response.data.cargo.inventory.filter(i => i.symbol !== ctx.good);
-//			if (good?.units >= response.data.cargo.capacity * 0.9) { // > 90% full
-//				console.log(`ship's cargo is full with ${response.data.cargo.units} of ${ctx.good}!`);
-//				return;
-//			}
-//			let actions = [{ action: ships.dock, ship: ctx.ship }];
-//			inventory.forEach(i => actions.push({action: ships.sell, ship: ctx.ship, good: i.symbol, units: i.units}));
-//			actions.push({action: ships.orbit, ship: ctx.ship});
-//			actions.push({action: extract, ship: ctx.ship, good: ctx.good});
-//			api.chain(actions);
-//			return;
-//		} else { // we need to mine more
-//			if (response.data.cooldown) { // we are on cooldown, call ourselves again in a moment
-//				setTimeout(extract, response.data.cooldown.remainingSeconds  * 1000, ctx);
-//				return;
-//			}
-//		}
-//	}
-//	ships.extract({ship: ctx.ship, good: ctx.good, next: { action: extract, ship: ctx.ship, good: ctx.good }});
-//}
+export async function auto(ctx) {
+	let ship = await ships.ship({ship: ctx.ship});
+	// Fetch our contracts in the system the ship currently is in
+	let cs = await contracts.contracts();
+	cs = cs.data.filter(c => c.terms.deliver[0].destinationSymbol.startsWith(ship.data.nav.systemSymbol));
+	if (cs === []) throw `No contract at ${ctx.ship}'s location`;
+	let contract = cs[0];
+	if (!contract.accepted) {
+		console.log(new Date(), `accepting contract ${contract.id}`);
+		await contracts.accept({id: contract.id});
+	}
+	const good = contract.terms.deliver[0].tradeSymbol;
+	const deliveryPoint = contract.terms.deliver[0].destinationSymbol;
+	const asteroidFields = await systems.type({symbol: ship.data.nav.systemSymbol, type: 'ASTEROID_FIELD'});
+	const asteroidField = asteroidFields[0].symbol;
+	while (true) {
+		ship = await ships.ship({ship: ctx.ship}); // TODO we should not need to fetch this
+		// If we are in transit, we wait until we arrive
+		const delay = new Date(ship.data.nav.route.arrival) - new Date();
+		if (delay > 0) await api.sleep(delay);
+		// Then it depends on where we are
+		let goodCargo = ship.data.cargo.inventory.filter(i => i.symbol === good)[0];
+		// the switch makes this 'resumable'
+		switch (ship.data.nav.waypointSymbol) {
+		case asteroidField:
+			let response = await mineUntilFullOf({good: good, ship: ctx.ship});
+			//console.log(`${ctx.ship}'s cargo is full with ${response.units} of ${good}!`);
+			await ships.navigate({ship: ctx.ship, waypoint: deliveryPoint});
+			break;
+		case deliveryPoint:
+			await ships.dock({ship: ctx.ship});
+			await ships.refuel({ship: ctx.ship});
+			console.log(`delivering ${goodCargo.units} of ${good}`);
+			await contracts.deliver({contract: contract.id, ship: ctx.ship, good: good, units: goodCargo.units });
+			await ships.navigate({ship: ctx.ship, waypoint: asteroidField});
+			await ships.dock({ship: ctx.ship});
+			await ships.refuel({ship: ctx.ship});
+			await ships.orbit({ship: ctx.ship});
+			break;
+		default:
+			throw `where is the ship?`;
+		}
+	}
+}
+
+// example ctx { good: 'SILVER_ORE', ship: 'ADYXAX-2' }
+// returns the number of units of the good the ship extracted
+async function mineUntilFullOf(ctx) {
+	while(true) {
+		let response = await mineUntilFull({ship: ctx.ship});
+		if (response === null) response = await ships.ship({ship: ctx.ship}); // TODO we should not need to fetch this
+		let good = response.data.cargo.inventory.filter(i => i.symbol === ctx.good)[0];
+		const inventory = response.data.cargo.inventory.filter(i => i.symbol !== ctx.good);
+		const antimatter = response.data.cargo.inventory.filter(i => i.symbol === 'ANTIMATTER')[0];
+		if (good?.units + antimatter?.units >= response.data.cargo.capacity * 0.9) { // > 90% full of the valuable goods
+			return good.units;
+		} else { // we are full but need to sell junk
+			await ships.dock({ship: ctx.ship});
+			for (let i=0; i<inventory.length; ++i) {
+				if (inventory[i].symbol === 'ANTIMATTER') continue;
+				//console.log(`selling ${inventory[i].units} of ${inventory[i].symbol}`);
+				await ships.sell({ship: ctx.ship, good: inventory[i].symbol, units: inventory[i].units});
+			}
+			await ships.orbit({ship: ctx.ship});
+		}
+	}
+}
+
+// example ctx { ship: 'ADYXAX-2' }
+// returns the last ship's extract api response
+async function mineUntilFull(ctx) {
+	while(true) {
+		const response = await ships.extract(ctx);
+		if (response === null) return null;
+		//console.log(`${ctx.ship}: extracted ${response.data.extraction.yield.units} of ${response.data.extraction.yield.symbol}`);
+		await api.sleep(response.data.cooldown.remainingSeconds*1000);
+		if (response.data.cargo.units >= response.data.cargo.capacity * 0.9) return response;
+	}
+}
 
 // This function inits the database in case we have an already registered game
 export function init(symbol, faction, token) {
diff --git a/lib/api.js b/lib/api.js
index abcd85d..1519888 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -1,3 +1,5 @@
+import * as fs from 'fs';
+
 import { getToken } from '../database/config.js';
 import { PriorityQueue } from './priority_queue.js';
 
@@ -58,10 +60,15 @@ function send_this(data) {
 	if (data.request.payload !== undefined) {
 		options['body'] = JSON.stringify(data.request.payload);
 	}
+	fs.writeFileSync('log', JSON.stringify({event: 'send', date: new Date(), data: data}) + '\n', {flag: 'a+'});
 	fetch(`https://api.spacetraders.io/v2${data.request.endpoint}`, options)
 		.then(response => response.json())
-		.then(response => data.resolve(response))
-		.catch(err => data.reject(err));
+		.then(response => {
+			fs.writeFileSync('log', JSON.stringify({event: 'response', date: new Date(), data: response}) + '\n', {flag: 'a+'});
+			return data.resolve(response);})
+		.catch(err => {
+			fs.writeFileSync('log', JSON.stringify({event: 'error', date: new Date(), data: err}) + '\n', {flag: 'a+'});
+			data.reject(err)});
 	setTimeout(send_next, 500);
 }
 
diff --git a/lib/ships.js b/lib/ships.js
index 9a57c12..6eefd87 100644
--- a/lib/ships.js
+++ b/lib/ships.js
@@ -5,7 +5,7 @@ export async function extract(ctx) {
 	if (response.error !== undefined) {
 		switch(response.error.code) {
 		case 4000: // ship is on cooldown
-			await api.sleep(response.error.data.remainingSeconds  * 1000);
+			await api.sleep(response.error.data.cooldown.remainingSeconds  * 1000);
 			return extract(ctx);
 		case 4228: // ship is full
 			return null;
@@ -31,7 +31,9 @@ export async function dock(ctx) {
 }
 
 export async function navigate(ctx) {
-	return await api.send({endpoint: `/my/ships/${ctx.ship}/navigate`, method: 'POST', payload: { waypointSymbol: ctx.waypoint }});
+	const response = await api.send({endpoint: `/my/ships/${ctx.ship}/navigate`, method: 'POST', payload: { waypointSymbol: ctx.waypoint }});
+	const delay = new Date(response.data.nav.route.arrival) - new Date();
+	await api.sleep(delay);
 }
 
 export async function orbit(ctx) {