chore: handle NotFoundError / 404 inside source and cache it also

src/source/Source.ts

@@ -1,5 +1,6 @@
 import TTLCache from '@isaacs/ttlcache';
 import { ContentType } from 'stremio-addon-sdk';
+import { NotFoundError } from '../error';
 import { Context, CountryCode } from '../types';
 import { Id } from '../utils';
 
@@ -35,7 +36,17 @@ export abstract class Source {
       return this.sourceResultCache.get(id.id) as SourceResult[];
     }
 
-    const sourceResults = await this.handleInternal(ctx, type, id);
+    let sourceResults: SourceResult[];
+    try {
+      sourceResults = await this.handleInternal(ctx, type, id);
+    } catch (error) {
+      if (error instanceof NotFoundError) {
+        sourceResults = [];
+      } else {
+        throw error;
+      }
+    }
+
     this.sourceResultCache.set(id.id, sourceResults);
 
     return sourceResults;

src/utils/Fetcher.ts

@@ -192,7 +192,7 @@ export class Fetcher {
   }
 
   private determineCacheTtl(status: number, policy: CachePolicy, init?: CustomRequestInit): number {
-    if (status === 200) {
+    if (status === 200 || status === 404) {
       return Math.max(policy.timeToLive(), init?.minCacheTtl ?? this.MIN_CACHE_TTL);
     }
 

src/utils/StreamResolver.ts

@@ -1,7 +1,7 @@
 import bytes from 'bytes';
 import { ContentType, Stream } from 'stremio-addon-sdk';
 import winston from 'winston';
-import { logErrorAndReturnNiceString, NotFoundError } from '../error';
+import { logErrorAndReturnNiceString } from '../error';
 import { ExtractorRegistry } from '../extractor';
 import { Source } from '../source';
 import { Context, Format, UrlResult } from '../types';
@@ -56,10 +56,6 @@ export class StreamResolver {
 
         urlResults.push(...sourceUrlResults.flat());
       } catch (error) {
-        if (error instanceof NotFoundError) {
-          return;
-        }
-
         sourceErrorOccurred = true;
 
         if (showErrors(ctx.config)) {