Add license requirement

src/utils/licenseKey.ts

@@ -0,0 +1,65 @@
+import Config from "../config";
+import Utils from "../utils";
+import * as CompileConfig from "../../config.json";
+
+const utils = new Utils();
+
+export async function checkLicenseKey(licenseKey: string): Promise<boolean> {
+    const result = await utils.asyncRequestToServer("GET", "/api/verifyToken", {
+        licenseKey
+    });
+
+    try {
+        if (result.ok && JSON.parse(result.responseText).allowed) {
+            Config.config.payments.chaptersAllowed = true;
+            Config.config.payments.lastCheck = Date.now();
+            Config.forceSyncUpdate("payments");
+            
+            return true;
+        }
+    } catch (e) { } //eslint-disable-line no-empty
+
+    return false
+}
+
+export async function fetchingChaptersAllowed(): Promise<boolean> {
+    if (Config.config.payments.freeAccess || CompileConfig["freeChapterAccess"]) {
+        return true;
+    }
+
+    //more than 14 days
+    if (Config.config.payments.licenseKey && Date.now() - Config.config.payments.lastCheck > 14 * 24 * 60 * 60 * 1000) {
+        const licensePromise = checkLicenseKey(Config.config.payments.licenseKey);
+
+        if (!Config.config.payments.chaptersAllowed) {
+            return licensePromise;
+        }
+    }
+    
+    if (Config.config.payments.chaptersAllowed) return true;
+
+    if (Config.config.payments.lastCheck === 0) {
+        // Check for free access if no license key, and it is the first time
+        const result = await utils.asyncRequestToServer("GET", "/api/userInfo", {
+            value: "freeChaptersAccess",
+            userID: Config.config.userID
+        });
+
+        try {
+            if (result.ok) {
+                const userInfo = JSON.parse(result.responseText);
+    
+                Config.config.payments.lastCheck = Date.now();
+                if (userInfo.freeChaptersAccess) {
+                    Config.config.payments.freeAccess = true;
+                    Config.config.payments.chaptersAllowed = true;
+                    Config.forceSyncUpdate("payments");
+    
+                    return true;
+                }
+            }
+        } catch (e) { } //eslint-disable-line no-empty
+    }
+
+    return false;
+}