diff --git a/src/main/java/com/mykola2312/mptv/crawler/Crawler.java b/src/main/java/com/mykola2312/mptv/crawler/Crawler.java
index 6d8156a..052a1ef 100644
--- a/src/main/java/com/mykola2312/mptv/crawler/Crawler.java
+++ b/src/main/java/com/mykola2312/mptv/crawler/Crawler.java
@@ -9,11 +9,20 @@ import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.io.IOException;
+import java.util.HashMap;
+
+import org.jooq.UpdatableRecord;
+import org.jooq.exception.NoDataFoundException;
+import org.jooq.impl.*;
+import static com.mykola2312.mptv.tables.Category.*;
+import static com.mykola2312.mptv.tables.Channel.*;
 
 import com.mykola2312.mptv.config.SourceItem;
 import com.mykola2312.mptv.parser.M3U;
 import com.mykola2312.mptv.parser.M3UException;
 import com.mykola2312.mptv.parser.M3UParser;
+import com.mykola2312.mptv.db.DB;
+import com.mykola2312.mptv.tables.records.ChannelRecord;
 
 public class Crawler {
     private static final Logger logger = Logger.getLogger(Crawler.class);
@@ -24,6 +33,73 @@ public class Crawler {
         this.sources = sources;
     }
 
+    private static Integer ensureRootCategory(String rootName) {
+        try {
+            return DSL.using(DB.CONFIG)
+                .select(CATEGORY.ID)
+                .from(CATEGORY)
+                .where(CATEGORY.TITLE.eq(rootName))
+                .limit(1)
+                .fetchSingleInto(Integer.class);
+        } catch (NoDataFoundException e) {
+            return DSL.using(DB.CONFIG)
+                .insertInto(CATEGORY, CATEGORY.TITLE)
+                .values(rootName)
+                .returningResult(CATEGORY.ID)
+                .fetchSingleInto(Integer.class);
+        }
+    }
+
+    public static void loadAll(ArrayList<M3U> items, String rootName) {
+        Integer rootCategoryId = ensureRootCategory(rootName);
+        HashMap<String, Integer> categories = new HashMap<>();
+        // collect all groups, find or create them, cache their ids
+        for (M3U item : items) {
+            // no category, skip
+            if (item.groupTitle == null) {
+                continue;
+            }
+            // we already have category cached
+            if (categories.get(item.groupTitle) != null) {
+                continue;
+            }
+
+            Integer categoryId;
+            try {
+                categoryId = DSL.using(DB.CONFIG)
+                    .select(CATEGORY.ID)
+                    .from(CATEGORY)
+                    .where(CATEGORY.TITLE.eq(item.groupTitle))
+                    .limit(1)
+                    .fetchSingleInto(Integer.class);
+            } catch (NoDataFoundException e) {
+                categoryId = DSL.using(DB.CONFIG)
+                    .insertInto(CATEGORY, CATEGORY.TITLE)
+                    .values(item.groupTitle)
+                    .returningResult(CATEGORY.ID)
+                    .fetchSingleInto(Integer.class);
+            }
+            categories.put(item.groupTitle, categoryId);
+        }
+
+        // upsert all channels
+        ArrayList<UpdatableRecord<ChannelRecord>> channels = new ArrayList<>();
+        for (M3U item : items) {
+            UpdatableRecord<ChannelRecord> channel = new UpdatableRecordImpl<>(CHANNEL);
+            Integer categoryId = item.groupTitle != null
+                ? categories.get(item.groupTitle) : rootCategoryId;
+            channel.set(CHANNEL.CATEGORY, categoryId);
+            channel.set(CHANNEL.TITLE, item.title);
+            channel.set(CHANNEL.URL, item.url);
+            channel.set(CHANNEL.LOGO, item.tvgLogo);
+
+            channels.add(channel);
+        }
+        DSL.using(DB.CONFIG)
+            .batchMerge(channels)
+            .execute();
+    }
+
     public void crawl() {
         for (SourceItem source : sources) {
             switch (source.type) {
@@ -40,7 +116,7 @@ public class Crawler {
                         String m3uData = Files.readString(Paths.get(source.path), StandardCharsets.UTF_8);
                         ArrayList<M3U> m3u = M3UParser.parse(m3uData);
 
-                        M3ULoader.loadAll(m3u, source.rootCategory);
+                        loadAll(m3u, source.rootCategory);
                     } catch (IOException e) {
                         logger.error(e);
                         logger.error(String.format("failed to read local m3u file: %s", e.getMessage()));
diff --git a/src/main/java/com/mykola2312/mptv/crawler/M3ULoader.java b/src/main/java/com/mykola2312/mptv/crawler/M3ULoader.java
deleted file mode 100644
index d6ffadc..0000000
--- a/src/main/java/com/mykola2312/mptv/crawler/M3ULoader.java
+++ /dev/null
@@ -1,83 +0,0 @@
-package com.mykola2312.mptv.crawler;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-
-import org.jooq.UpdatableRecord;
-import org.jooq.exception.NoDataFoundException;
-import org.jooq.impl.*;
-import static com.mykola2312.mptv.tables.Category.*;
-import static com.mykola2312.mptv.tables.Channel.*;
-
-import com.mykola2312.mptv.db.DB;
-import com.mykola2312.mptv.parser.M3U;
-import com.mykola2312.mptv.tables.records.ChannelRecord;
-
-public class M3ULoader {
-    private static Integer ensureRootCategory(String rootName) {
-        try {
-            return DSL.using(DB.CONFIG)
-                .select(CATEGORY.ID)
-                .from(CATEGORY)
-                .where(CATEGORY.TITLE.eq(rootName))
-                .limit(1)
-                .fetchSingleInto(Integer.class);
-        } catch (NoDataFoundException e) {
-            return DSL.using(DB.CONFIG)
-                .insertInto(CATEGORY, CATEGORY.TITLE)
-                .values(rootName)
-                .returningResult(CATEGORY.ID)
-                .fetchSingleInto(Integer.class);
-        }
-    }
-
-    public static void loadAll(ArrayList<M3U> items, String rootName) {
-        Integer rootCategoryId = ensureRootCategory(rootName);
-        HashMap<String, Integer> categories = new HashMap<>();
-        // collect all groups, find or create them, cache their ids
-        for (M3U item : items) {
-            // no category, skip
-            if (item.groupTitle == null) {
-                continue;
-            }
-            // we already have category cached
-            if (categories.get(item.groupTitle) != null) {
-                continue;
-            }
-
-            Integer categoryId;
-            try {
-                categoryId = DSL.using(DB.CONFIG)
-                    .select(CATEGORY.ID)
-                    .from(CATEGORY)
-                    .where(CATEGORY.TITLE.eq(item.groupTitle))
-                    .limit(1)
-                    .fetchSingleInto(Integer.class);
-            } catch (NoDataFoundException e) {
-                categoryId = DSL.using(DB.CONFIG)
-                    .insertInto(CATEGORY, CATEGORY.TITLE)
-                    .values(item.groupTitle)
-                    .returningResult(CATEGORY.ID)
-                    .fetchSingleInto(Integer.class);
-            }
-            categories.put(item.groupTitle, categoryId);
-        }
-
-        // upsert all channels
-        ArrayList<UpdatableRecord<ChannelRecord>> channels = new ArrayList<>();
-        for (M3U item : items) {
-            UpdatableRecord<ChannelRecord> channel = new UpdatableRecordImpl<>(CHANNEL);
-            Integer categoryId = item.groupTitle != null
-                ? categories.get(item.groupTitle) : rootCategoryId;
-            channel.set(CHANNEL.CATEGORY, categoryId);
-            channel.set(CHANNEL.TITLE, item.title);
-            channel.set(CHANNEL.URL, item.url);
-            channel.set(CHANNEL.LOGO, item.tvgLogo);
-
-            channels.add(channel);
-        }
-        DSL.using(DB.CONFIG)
-            .batchMerge(channels)
-            .execute();
-    }
-}