BitNode-9 initial implementation

src/Hacknet/ui/PurchaseButton.jsx

@@ -0,0 +1,40 @@
+/**
+ * React Component for the button that is used to purchase new Hacknet Nodes
+ */
+import React from "react";
+
+import { hasHacknetServers,
+         hasMaxNumberHacknetServers } from "../HacknetHelpers";
+import { Player } from "../../Player";
+import { numeralWrapper } from "../../ui/numeralFormat";
+
+export function PurchaseButton(props) {
+    if (props.multiplier == null || props.onClick == null) {
+        throw new Error(`PurchaseButton constructed without required props`);
+    }
+
+    const cost = props.cost;
+    let className = Player.canAfford(cost) ? "std-button" : "std-button-disabled";
+    let text;
+    let style = null;
+    if (hasHacknetServers()) {
+        if (hasMaxNumberHacknetServers()) {
+            className = "std-button-disabled";
+            text = "Hacknet Server limit reached";
+            style = {color: "red"};
+        } else {
+            text = `Purchase Hacknet Server - ${numeralWrapper.formatMoney(cost)}`;
+        }
+    } else {
+        text = `Purchase Hacknet Node  - ${numeralWrapper.formatMoney(cost)}`;
+    }
+
+    return (
+        <button className={className}
+                onClick={props.onClick}
+                style={style}>
+            {text}
+        </button>
+
+    )
+}