Feat: more preferences (#106)

* add ffmpeg command check

* may switch language

* tweak

enjoy/src/main/ffmpeg.ts

@@ -11,22 +11,37 @@ import storage from "@main/storage";
 const logger = log.scope("ffmepg");
 export default class FfmpegWrapper {
   public ffmpeg: Ffmpeg.FfmpegCommand;
+  public config: any;
 
   constructor() {
-    const config = settings.ffmpegConfig();
+    this.config = settings.ffmpegConfig();
 
-    if (config.commandExists) {
+    if (this.config.commandExists) {
       logger.info("Using system ffmpeg");
       this.ffmpeg = Ffmpeg();
     } else {
       logger.info("Using downloaded ffmpeg");
       const ff = Ffmpeg();
-      ff.setFfmpegPath(config.ffmpegPath);
-      ff.setFfprobePath(config.ffprobePath);
+      ff.setFfmpegPath(this.config.ffmpegPath);
+      ff.setFfprobePath(this.config.ffprobePath);
       this.ffmpeg = ff;
     }
   }
 
+  checkCommand() {
+    return new Promise((resolve, _reject) => {
+      this.ffmpeg.getAvailableFormats((err, formats) => {
+        if (err) {
+          logger.error("Command not valid:", err);
+          resolve(false);
+        } else {
+          logger.info("Command valid, available formats:", formats);
+          resolve(true);
+        }
+      });
+    });
+  }
+
   generateMetadata(input: string): Promise<Ffmpeg.FfprobeData> {
     return new Promise((resolve, reject) => {
       this.ffmpeg
@@ -292,9 +307,29 @@ export class FfmpegDownloader {
         logger.error(err);
         event.sender.send("on-notification", {
           type: "error",
-          title: `FFmpeg download failed: ${err.message}`,
+          message: `FFmpeg download failed: ${err.message}`,
         });
       }
     });
+
+    ipcMain.handle("ffmpeg-check-command", async (event) => {
+      const ffmpeg = new FfmpegWrapper();
+      const valid = await ffmpeg.checkCommand();
+
+      if (valid) {
+        event.sender.send("on-notification", {
+          type: "success",
+          message: `FFmpeg command valid, you're ready to go.`,
+        });
+      } else {
+        logger.error("FFmpeg command not valid", ffmpeg.config);
+        event.sender.send("on-notification", {
+          type: "warning",
+          message: `FFmpeg command not valid, please check the log for detail.`,
+        });
+      }
+
+      return valid;
+    });
   }
 }