Port the Usage class

src/usage.ts → lib/usage.d.ts

@@ -27,26 +27,14 @@ export class Usage {
 	 * Creates a new usage.
 	 * @param options An object providing values to initialize this instance.
 	 */
-	constructor(options: UsageOptions = {}) {
-		this.limit = options.limit ?? -1;
-		this.percentage = options.percentage ?? 0;
-		this.throttled = options.throttled ?? false;
-		this.usage = options.usage ?? 0;
-	}
+	constructor(options?: UsageOptions);
 
 	/**
 	 * Creates a new usage from the specified JSON object.
 	 * @param json A JSON object representing a usage.
 	 * @returns The instance corresponding to the specified JSON object.
 	 */
-	static fromJson(json: Record<string, any>): Usage {
-		return new this({
-			limit: Number.isInteger(json.limit) ? json.limit as number : -1,
-			percentage: typeof json.percentage == "number" ? json.percentage : 0,
-			throttled: typeof json.throttled == "boolean" ? json.throttled : false,
-			usage: Number.isInteger(json.usage) ? json.usage as number : 0
-		});
-	}
+	static fromJson(json: Record<string, any>): Usage;
 }
 
 /**

src/usage.coffee

@@ -0,0 +1,24 @@
+# Provides API usage for a given month.
+export class Usage
+
+	# Creates a new usage.
+	constructor: (options = {}) ->
+
+		# The number of monthly API calls your plan entitles you to.
+		@limit = options.limit ? (-1)
+
+		# The percentage of the limit used since the beginning of the month.
+		@percentage = options.percentage ? 0
+
+		# Value indicating whether the requests are being throttled for having consistently gone over the limit.
+		@throttled = options.throttled ? no
+
+		# The number of calls (spam + ham) since the beginning of the month.
+		@usage = options.usage ? 0
+
+	# Creates a new usage from the specified JSON object.
+	@fromJson: (json) -> new @
+		limit: if Number.isInteger(json.limit) then json.limit else -1
+		percentage: if typeof json.percentage == "number" then json.percentage else 0
+		throttled: if typeof json.throttled == "boolean" then json.throttled else no
+		usage: if Number.isInteger(json.usage) then json.usage else 0