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/lib/contracts.ts | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 nodejs/lib/contracts.ts

(limited to 'nodejs/lib/contracts.ts')

diff --git a/nodejs/lib/contracts.ts b/nodejs/lib/contracts.ts
new file mode 100644
index 0000000..fb62813
--- /dev/null
+++ b/nodejs/lib/contracts.ts
@@ -0,0 +1,74 @@
+import { Agent } from '../model/agent.ts';
+import { APIError } from '../model/api.ts';
+import { Cargo } from '../model/cargo.ts';
+import { Contract } from '../model/contract.ts';
+import { Ship } from '../model/ship.ts';
+import * as dbAgents from '../database/agents.ts';
+import * as dbContracts from '../database/contracts.ts';
+import * as api from './api.ts';
+import * as dbShips from '../database/ships.ts';
+import * as libShips from '../lib/ships.ts';
+
+export async function accept(contract: Contract): Promise<Contract> {
+	if (contract.accepted) return contract;
+	const response = await api.send<{agent: Agent, contract: Contract, type: ''}>({endpoint: `/my/contracts/${contract.id}/accept`, method: 'POST'});
+	if ('apiError' in response) {
+		api.debugLog(response);
+		throw response;
+	}
+	dbAgents.setAgent(response.agent);
+	dbContracts.setContract(response.contract);
+	return response.contract;
+}
+
+export async function contracts(): Promise<Array<Contract>> {
+	const response = await api.sendPaginated<Contract>({endpoint: '/my/contracts', page: 1});
+	if ('apiError' in response) {
+		api.debugLog(response);
+		throw response;
+	}
+	response.forEach(contract => dbContracts.setContract(contract));
+	return response;
+}
+
+export async function deliver(contract: Contract, ship: Ship): Promise<Contract> {
+	if (contract.terms.deliver[0].unitsRequired >= contract.terms.deliver[0].unitsFulfilled) {
+		return await fulfill(contract);
+	}
+	const tradeSymbol = contract.terms.deliver[0].tradeSymbol;
+	let units = 0;
+	ship.cargo.inventory.forEach(i => {if (i.symbol === tradeSymbol) units = i.units; });
+	ship = await libShips.dock(ship); // we need to be docked to deliver
+	const response = await api.send<{contract: Contract, cargo: Cargo}>({ endpoint: `/my/contracts/${contract.id}/deliver`, method: 'POST', payload: {
+		shipSymbol: ship.symbol,
+		tradeSymbol: tradeSymbol,
+		units: units,
+	}});
+	if ('apiError' in response) {
+		switch(response.code) {
+			case 4509: // contract delivery terms have been met
+				return await fulfill(contract);
+			default: // yet unhandled error
+				api.debugLog(response);
+				throw response;
+		}
+	}
+	dbContracts.setContract(response.contract);
+	dbShips.setShipCargo(ship.symbol, response.cargo);
+	if(response.contract.terms.deliver[0].unitsRequired >= response.contract.terms.deliver[0].unitsFulfilled) {
+		return await fulfill(contract);
+	}
+	return response.contract;
+}
+
+export async function fulfill(contract: Contract): Promise<Contract> {
+	if (contract.fulfilled) return contract;
+	const response = await api.send<{agent: Agent, contract: Contract}>({ endpoint: `/my/contracts/${contract.id}/fulfill`, method: 'POST'});
+	if ('apiError' in response) {
+		api.debugLog(response);
+		throw response;
+	}
+	dbAgents.setAgent(response.agent);
+	dbContracts.setContract(response.contract);
+	return response.contract;
+}
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