1 files changed, 71 insertions, 0 deletions
diff --git a/src/main/manaplus/manaApp/shared.ts b/src/main/manaplus/manaApp/shared.ts
new file mode 100644
index 0000000..106902c
--- /dev/null
+++ b/src/main/manaplus/manaApp/shared.ts
@@ -0,0 +1,71 @@
+import { getRequest } from "../../util/webrequest";
+import { ManaPlusApp } from "./manaApp.interface";
+
+export async function getVersions(): Promise<{
+  [platform_name: string]: {
+    version: string;
+    file: string;
+  };
+}> {
+  return await getRequest(
+    "https://tmw2.org/manalauncher/versions.json?" + Date.now()
+  );
+}
+
+export async function getVersionInfoForPlatform(
+  platformKey: string
+): Promise<{
+  version: string;
+  file: string;
+}> {
+  const versions = await getVersions();
+  if (versions[platformKey]) {
+    return versions[platformKey];
+  } else {
+    throw new Error("Platform not found");
+  }
+}
+
+export function getInstalledManaplusVersion(
+  startCommand: string,
+  versionRegEx: RegExp
+): Promise<string> {
+  return new Promise((res, rej) => {
+    let output: string;
+    const child = require("child_process").execFile(
+      startCommand,
+      ["-v"],
+      function (err: Error, data: any) {
+        output = data.toString();
+      }
+    );
+    child.on("close", () => {
+      output = output.replace(versionRegEx, "$1");
+      res(output);
+    });
+    child.on("error", () => {
+      rej(new Error("Version check failed"));
+    });
+  });
+}
+
+export async function updateAvailable(
+  platformKey: string,
+  instance: ManaPlusApp
+): Promise<{
+  isNewVersion: boolean;
+  newestVersion: string;
+}> {
+  try {
+    let newestVersion = await getVersionInfoForPlatform(platformKey);
+    let currect_version = (await instance.isInstalled())
+      ? await instance.getVersion()
+      : "-";
+    return {
+      isNewVersion: currect_version.indexOf(newestVersion.version) === -1,
+      newestVersion: newestVersion.version,
+    };
+  } catch (e) {
+    throw e;
+  }
+}