From 7f680dd0abbbbeab32c79dcd724f375e1351a016 Mon Sep 17 00:00:00 2001
From: cyclane <gleb@koval.net>
Date: Sat, 3 Jul 2021 10:29:25 +0100
Subject: [PATCH] getAPIKeyInformation

---
 src/lib/hypixel.ts | 32 ++++++++++++++++++
 src/lib/util.ts    | 81 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 113 insertions(+)
 create mode 100644 src/lib/hypixel.ts
 create mode 100644 src/lib/util.ts

diff --git a/src/lib/hypixel.ts b/src/lib/hypixel.ts
new file mode 100644
index 0000000..c351dc5
--- /dev/null
+++ b/src/lib/hypixel.ts
@@ -0,0 +1,32 @@
+import { authorize, requestWithDefaults } from "./util";
+
+export type HypixelResponse<T> = Promise<
+	{
+		_response: Response;
+		success: boolean;
+	} & T
+>;
+
+export const ENDPOINT = "https://api.hypixel.net/";
+const request = requestWithDefaults(ENDPOINT);
+
+/**
+ * Get Hypixel API key information
+ * @param key API key
+ * @returns A response with the API key information
+ */
+export async function getAPIKeyInformation(key: string): HypixelResponse<{
+	record?: {
+		key: string;
+		owner: string;
+		limit: number;
+		queriesInPastMin: number;
+		totalQueries: number;
+	};
+}> {
+	let response = await request("/key", authorize(key));
+	return {
+		...(await response.json()),
+		_response: response
+	};
+}
diff --git a/src/lib/util.ts b/src/lib/util.ts
new file mode 100644
index 0000000..07ea89c
--- /dev/null
+++ b/src/lib/util.ts
@@ -0,0 +1,81 @@
+import { join } from "path";
+
+/**
+ * Get a fetch function
+ * @returns A fetch function
+ */
+export function getFetch(): typeof fetch {
+	if (typeof fetch !== "function") {
+		return require("node-fetch");
+	}
+	return fetch;
+}
+
+export function requestWithDefaults(
+	baseURL: string,
+	defaultInit?: RequestInit
+): (endpoint: string, init?: RequestInit) => Promise<Response> {
+	return async function (
+		endpoint: string,
+		overrideInit?: RequestInit
+	): Promise<Response> {
+		let response = await getFetch()(
+			join(baseURL, endpoint),
+			defaultInit ? deepMerge(defaultInit, overrideInit) : overrideInit
+		);
+		if (response.ok) {
+			return response;
+		}
+		throw {
+			...new Error("non-200 status code"),
+			response
+		};
+	};
+}
+
+/**
+ * Generate RequestInit for Hypixel authorization
+ * @param key The API key
+ * @returns The RequestInit
+ */
+export function authorize(key: string): RequestInit {
+	return {
+		headers: {
+			"API-Key": key
+		}
+	};
+}
+
+/**
+ * Simple object check
+ * @param item item to check
+ * @returns Whether item is an object
+ */
+export function isObject(item: any): boolean {
+	return item && typeof item === "object" && !Array.isArray(item);
+}
+
+/**
+ * Deep merge two objects
+ * @param target Target (base object)
+ * @param sources Objects to merge into target (in order)
+ * @returns Deep merged object
+ */
+export function deepMerge<T>(target: T, ...sources: T[]): T {
+	if (!sources.length) return target;
+	const source = sources.shift();
+
+	// Two separate checks for source to make typescript chill
+	if (isObject(target) && isObject(source) && source) {
+		for (const key in source) {
+			if (isObject(source[key])) {
+				if (!target[key]) Object.assign(target, { [key]: {} });
+				deepMerge(target[key], source[key]);
+			} else {
+				Object.assign(target, { [key]: source[key] });
+			}
+		}
+	}
+
+	return deepMerge(target, ...sources);
+}