diff --git a/app/src/main/java/com/fox2code/mmm/markdown/MarkdownActivity.kt b/app/src/main/java/com/fox2code/mmm/markdown/MarkdownActivity.kt
index 5750273..c36f261 100644
--- a/app/src/main/java/com/fox2code/mmm/markdown/MarkdownActivity.kt
+++ b/app/src/main/java/com/fox2code/mmm/markdown/MarkdownActivity.kt
@@ -1,254 +1,255 @@
-package com.fox2code.mmm.markdown;
-
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.content.res.Configuration;
-import android.graphics.Color;
-import android.os.Build;
-import android.os.Bundle;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.WindowManager;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.Nullable;
-
-import com.fox2code.foxcompat.app.FoxActivity;
-import com.fox2code.mmm.Constants;
-import com.fox2code.mmm.MainApplication;
-import com.fox2code.mmm.R;
-import com.fox2code.mmm.XHooks;
-import com.fox2code.mmm.utils.IntentHelper;
-import com.fox2code.mmm.utils.io.net.Http;
-import com.google.android.material.bottomnavigation.BottomNavigationView;
-import com.google.android.material.chip.Chip;
-import com.google.android.material.chip.ChipGroup;
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-import com.topjohnwu.superuser.internal.UiThreadHandler;
-
-import org.matomo.sdk.extra.TrackHelper;
-
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.util.HashMap;
-import java.util.Objects;
-
-import timber.log.Timber;
-
-public class MarkdownActivity extends FoxActivity {
-    private static final HashMap<String, String> redirects = new HashMap<>(4);
-    private static final String[] variants = new String[]{"readme.md", "README.MD", ".github/README.md"};
-    private TextView header;
-    private TextView footer;
-
-    private static byte[] getRawMarkdown(String url) throws IOException {
-        String newUrl = redirects.get(url);
-        if (newUrl != null && !newUrl.equals(url)) {
-            return Http.doHttpGet(newUrl, true);
-        }
-        try {
-            return Http.doHttpGet(url, true);
-        } catch (IOException e) {
-            // Workaround GitHub README.md case sensitivity issue
-            if (url.startsWith("https://raw.githubusercontent.com/") && url.endsWith("/README.md")) {
-                String prefix = url.substring(0, url.length() - 9);
-                for (String suffix : variants) {
-                    newUrl = prefix + suffix;
-                    try { // Try with lowercase version
-                        byte[] rawMarkdown = Http.doHttpGet(prefix + suffix, true);
-                        redirects.put(url, newUrl); // Avoid retries
-                        return rawMarkdown;
-                    } catch (IOException ignored) {
-                    }
-                }
-            }
-            throw e;
-        }
-    }
-
-    @Override
-    protected void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        TrackHelper.track().screen(this).with(MainApplication.getINSTANCE().getTracker());
-        this.setDisplayHomeAsUpEnabled(true);
-        Intent intent = this.getIntent();
+package com.fox2code.mmm.markdown
+
+import android.content.DialogInterface
+import android.content.pm.PackageManager
+import android.content.res.Configuration
+import android.graphics.Color
+import android.os.Build
+import android.os.Bundle
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup
+import android.view.WindowManager
+import android.widget.TextView
+import android.widget.Toast
+import com.fox2code.foxcompat.app.FoxActivity
+import com.fox2code.mmm.Constants
+import com.fox2code.mmm.MainApplication
+import com.fox2code.mmm.R
+import com.fox2code.mmm.XHooks
+import com.fox2code.mmm.utils.IntentHelper
+import com.fox2code.mmm.utils.io.net.Http
+import com.google.android.material.bottomnavigation.BottomNavigationView
+import com.google.android.material.chip.Chip
+import com.google.android.material.chip.ChipGroup
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import com.topjohnwu.superuser.internal.UiThreadHandler
+import org.matomo.sdk.extra.TrackHelper
+import timber.log.Timber
+import java.io.IOException
+import java.nio.charset.StandardCharsets
+
+class MarkdownActivity : FoxActivity() {
+    private var header: TextView? = null
+    private var footer: TextView? = null
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        TrackHelper.track().screen(this).with(MainApplication.getINSTANCE().tracker)
+        setDisplayHomeAsUpEnabled(true)
+        val intent = this.intent
         if (!MainApplication.checkSecret(intent)) {
-            Timber.e("Impersonation detected!");
-            this.forceBackPressed();
-            return;
+            Timber.e("Impersonation detected!")
+            forceBackPressed()
+            return
         }
-        String url = Objects.requireNonNull(intent.getExtras()).getString(Constants.EXTRA_MARKDOWN_URL);
-        String title = intent.getExtras().getString(Constants.EXTRA_MARKDOWN_TITLE);
-        String config = intent.getExtras().getString(Constants.EXTRA_MARKDOWN_CONFIG);
-        boolean change_boot = intent.getExtras().getBoolean(Constants.EXTRA_MARKDOWN_CHANGE_BOOT);
-        boolean needs_ramdisk = intent.getExtras().getBoolean(Constants.EXTRA_MARKDOWN_NEEDS_RAMDISK);
-        int min_magisk = intent.getExtras().getInt(Constants.EXTRA_MARKDOWN_MIN_MAGISK);
-        int min_api = intent.getExtras().getInt(Constants.EXTRA_MARKDOWN_MIN_API);
-        int max_api = intent.getExtras().getInt(Constants.EXTRA_MARKDOWN_MAX_API);
-        if (title != null && !title.isEmpty()) {
-            this.setTitle(title);
+        val url = intent.extras?.getString(Constants.EXTRA_MARKDOWN_URL)
+        var title = intent.extras!!.getString(Constants.EXTRA_MARKDOWN_TITLE)
+        val config = intent.extras!!.getString(Constants.EXTRA_MARKDOWN_CONFIG)
+        val changeBoot = intent.extras!!.getBoolean(Constants.EXTRA_MARKDOWN_CHANGE_BOOT)
+        val needsRamdisk = intent.extras!!.getBoolean(Constants.EXTRA_MARKDOWN_NEEDS_RAMDISK)
+        val minMagisk = intent.extras!!.getInt(Constants.EXTRA_MARKDOWN_MIN_MAGISK)
+        val minApi = intent.extras!!.getInt(Constants.EXTRA_MARKDOWN_MIN_API)
+        val maxApi = intent.extras!!.getInt(Constants.EXTRA_MARKDOWN_MAX_API)
+        if (!title.isNullOrEmpty()) {
+            this.title = title
+        } else {
+            @Suppress("UNUSED_VALUE")
+            title = url
         }
-        setActionBarBackground(null);
-        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION, 0);
-        if (config != null && !config.isEmpty()) {
-            String configPkg = IntentHelper.getPackageOfConfig(config);
+        setActionBarBackground(null)
+        @Suppress("DEPRECATION")
+        this.window.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION, 0)
+        if (!config.isNullOrEmpty()) {
+            val configPkg = IntentHelper.getPackageOfConfig(config)
             try {
-                XHooks.checkConfigTargetExists(this, configPkg, config);
-                this.setActionBarExtraMenuButton(R.drawable.ic_baseline_app_settings_alt_24, menu -> {
-                    IntentHelper.openConfig(this, config);
-                    return true;
-                });
-            } catch (PackageManager.NameNotFoundException e) {
-                Timber.w("Config package \"" + configPkg + "\" missing for markdown view");
+                XHooks.checkConfigTargetExists(this, configPkg, config)
+                this.setActionBarExtraMenuButton(R.drawable.ic_baseline_app_settings_alt_24) { _: MenuItem? ->
+                    IntentHelper.openConfig(this, config)
+                    true
+                }
+            } catch (e: PackageManager.NameNotFoundException) {
+                Timber.w("Config package \"$configPkg\" missing for markdown view")
             }
         }
         // validate the url won't crash the app
-        if (url == null || url.isEmpty() || url.contains("..")) {
-            Timber.e("Invalid url %s", String.valueOf(url));
-            this.forceBackPressed();
-            return;
+        if (url.isNullOrEmpty() || url.contains("..")) {
+            Timber.e("Invalid url %s", url.toString())
+            forceBackPressed()
+            return
+        }
+        Timber.i("Url for markdown %s", url.toString())
+        setContentView(R.layout.markdown_view)
+        val markdownBackground = findViewById<ViewGroup>(R.id.markdownBackground)
+        val textView = findViewById<TextView>(R.id.markdownView)
+        header = findViewById(R.id.markdownHeader)
+        footer = findViewById(R.id.markdownFooter)
+        updateBlurState()
+        UiThreadHandler.handler.post { // Fix header/footer height
+            this.updateScreenInsets(this.resources.configuration)
         }
-        //noinspection UnnecessaryCallToStringValueOf
-        Timber.i("Url for markdown %s", String.valueOf(url));
-        setContentView(R.layout.markdown_view);
-        final ViewGroup markdownBackground = findViewById(R.id.markdownBackground);
-        final TextView textView = findViewById(R.id.markdownView);
-        this.header = findViewById(R.id.markdownHeader);
-        this.footer = findViewById(R.id.markdownFooter);
-        this.updateBlurState();
-        UiThreadHandler.handler.post(() -> // Fix header/footer height
-                this.updateScreenInsets(this.getResources().getConfiguration()));
 
         // Really bad created (MSG by Der_Googler)
         // set "message" to null to disable dialog
-        if (change_boot) this.addChip(MarkdownChip.CHANGE_BOOT);
-        if (needs_ramdisk) this.addChip(MarkdownChip.NEED_RAMDISK);
-        if (min_magisk != 0) this.addChip(MarkdownChip.MIN_MAGISK, String.valueOf(min_magisk));
-        if (min_api != 0) this.addChip(MarkdownChip.MIN_SDK, parseAndroidVersion(min_api));
-        if (max_api != 0) this.addChip(MarkdownChip.MAX_SDK, parseAndroidVersion(max_api));
-
-        new Thread(() -> {
+        if (changeBoot) this.addChip(MarkdownChip.CHANGE_BOOT)
+        if (needsRamdisk) this.addChip(MarkdownChip.NEED_RAMDISK)
+        if (minMagisk != 0) this.addChip(MarkdownChip.MIN_MAGISK, minMagisk.toString())
+        if (minApi != 0) this.addChip(MarkdownChip.MIN_SDK, parseAndroidVersion(minApi))
+        if (maxApi != 0) this.addChip(MarkdownChip.MAX_SDK, parseAndroidVersion(maxApi))
+        Thread({
             try {
-                Timber.i("Downloading");
-                byte[] rawMarkdown = getRawMarkdown(url);
-                Timber.i("Encoding");
-                String markdown = new String(rawMarkdown, StandardCharsets.UTF_8);
-                Timber.i("Done!");
-                runOnUiThread(() -> {
-                    findViewById(R.id.markdownFooter).setMinimumHeight(this.getNavigationBarHeight());
-                    MainApplication.getINSTANCE().getMarkwon().setMarkdown(textView, MarkdownUrlLinker.urlLinkify(markdown));
+                Timber.i("Downloading")
+                val rawMarkdown = getRawMarkdown(url)
+                Timber.i("Encoding")
+                val markdown = String(rawMarkdown, StandardCharsets.UTF_8)
+                Timber.i("Done!")
+                runOnUiThread {
+                    footer?.minimumHeight = this.navigationBarHeight
+                    MainApplication.getINSTANCE().markwon.setMarkdown(
+                        textView,
+                        MarkdownUrlLinker.urlLinkify(markdown)
+                    )
                     if (markdownBackground != null) {
-                        markdownBackground.setClickable(true);
+                        markdownBackground.isClickable = true
                     }
-                });
-            } catch (Exception e) {
-                Timber.e(e);
-                runOnUiThread(() -> Toast.makeText(this, R.string.failed_download, Toast.LENGTH_SHORT).show());
+                }
+            } catch (e: Exception) {
+                Timber.e(e)
+                runOnUiThread {
+                    Toast.makeText(this, R.string.failed_download, Toast.LENGTH_SHORT).show()
+                }
             }
-        }, "Markdown load thread").start();
+        }, "Markdown load thread").start()
     }
 
-    private void updateBlurState() {
+    private fun updateBlurState() {
         if (MainApplication.isBlurEnabled()) {
             // set bottom navigation bar color to transparent blur
-            BottomNavigationView bottomNavigationView = findViewById(R.id.bottom_navigation);
+            val bottomNavigationView = findViewById<BottomNavigationView>(R.id.bottom_navigation)
             if (bottomNavigationView != null) {
-                bottomNavigationView.setBackgroundColor(Color.TRANSPARENT);
-                bottomNavigationView.setAlpha(0.8F);
+                bottomNavigationView.setBackgroundColor(Color.TRANSPARENT)
+                bottomNavigationView.alpha = 0.8f
             } else {
-                Timber.w("Bottom navigation view not found");
+                Timber.w("Bottom navigation view not found")
             }
             // set dialogs to have transparent blur
-            getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
+            window.addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND)
         }
     }
 
-    private void updateScreenInsets() {
-        this.runOnUiThread(() -> this.updateScreenInsets(this.getResources().getConfiguration()));
+    private fun updateScreenInsets() {
+        runOnUiThread { this.updateScreenInsets(this.resources.configuration) }
     }
 
-    private void updateScreenInsets(Configuration configuration) {
-        boolean landscape = configuration.orientation == Configuration.ORIENTATION_LANDSCAPE;
-        int bottomInset = (landscape ? 0 : this.getNavigationBarHeight());
-        int statusBarHeight = getStatusBarHeight();
-        int actionBarHeight = getActionBarHeight();
-        int combinedBarsHeight = statusBarHeight + actionBarHeight;
-        this.header.setMinHeight(combinedBarsHeight);
-        this.footer.setMinHeight(bottomInset);
+    private fun updateScreenInsets(configuration: Configuration) {
+        val landscape = configuration.orientation == Configuration.ORIENTATION_LANDSCAPE
+        val bottomInset = if (landscape) 0 else this.navigationBarHeight
+        val statusBarHeight = statusBarHeight
+        val actionBarHeight = actionBarHeight
+        val combinedBarsHeight = statusBarHeight + actionBarHeight
+        header!!.minHeight = combinedBarsHeight
+        footer!!.minHeight = bottomInset
         //this.actionBarBlur.invalidate();
     }
 
-    @Override
-    public void refreshUI() {
-        super.refreshUI();
-        this.updateScreenInsets();
-        this.updateBlurState();
+    override fun refreshUI() {
+        super.refreshUI()
+        this.updateScreenInsets()
+        updateBlurState()
     }
 
-    @Override
-    protected void onWindowUpdated() {
-        this.updateScreenInsets();
+    override fun onWindowUpdated() {
+        this.updateScreenInsets()
     }
 
-    private void addChip(MarkdownChip markdownChip) {
-        this.makeChip(this.getString(markdownChip.title), markdownChip.desc == 0 ? null : this.getString(markdownChip.desc));
+    private fun addChip(markdownChip: MarkdownChip) {
+        makeChip(
+            this.getString(markdownChip.title),
+            if (markdownChip.desc == 0) null else this.getString(markdownChip.desc)
+        )
     }
 
-    private void addChip(MarkdownChip markdownChip, String extra) {
-        String title = this.getString(markdownChip.title);
-        if (title.contains("%s")) {
-            title = title.replace("%s", extra);
+    private fun addChip(markdownChip: MarkdownChip, extra: String) {
+        var title = this.getString(markdownChip.title)
+        title = if (title.contains("%s")) {
+            title.replace("%s", extra)
         } else {
-            title = title + " " + extra;
+            "$title $extra"
         }
-        this.makeChip(title, markdownChip.desc == 0 ? null : this.getString(markdownChip.desc));
+        makeChip(title, if (markdownChip.desc == 0) null else this.getString(markdownChip.desc))
     }
 
-    private void makeChip(String title, String message) {
-        final ChipGroup chip_group_holder = findViewById(R.id.chip_group_holder);
-        Chip chip = new Chip(this);
-        chip.setText(title);
-        chip.setVisibility(View.VISIBLE);
+    private fun makeChip(title: String, message: String?) {
+        val chipGroupHolder = findViewById<ChipGroup>(R.id.chip_group_holder)
+        val chip = Chip(this)
+        chip.text = title
+        chip.visibility = View.VISIBLE
         if (message != null) {
-            chip.setOnClickListener(_view -> {
-                MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(this);
-
-                builder.setTitle(title).setMessage(message).setCancelable(true).setPositiveButton(R.string.ok, (x, y) -> x.dismiss()).show();
+            chip.setOnClickListener { _: View? ->
+                val builder = MaterialAlertDialogBuilder(this)
+                builder.setTitle(title).setMessage(message).setCancelable(true)
+                    .setPositiveButton(R.string.ok) { x: DialogInterface, _: Int -> x.dismiss() }
+                    .show()
+            }
+        }
+        chipGroupHolder.addView(chip)
+    }
 
-            });
+    private fun parseAndroidVersion(version: Int): String {
+        return when (version) {
+            Build.VERSION_CODES.JELLY_BEAN -> "4.1 JellyBean"
+            Build.VERSION_CODES.JELLY_BEAN_MR1 -> "4.2 JellyBean"
+            Build.VERSION_CODES.JELLY_BEAN_MR2 -> "4.3 JellyBean"
+            Build.VERSION_CODES.KITKAT -> "4.4 KitKat"
+            Build.VERSION_CODES.KITKAT_WATCH -> "4.4 KitKat Watch"
+            Build.VERSION_CODES.LOLLIPOP -> "5.0 Lollipop"
+            Build.VERSION_CODES.LOLLIPOP_MR1 -> "5.1 Lollipop"
+            Build.VERSION_CODES.M -> "6.0 Marshmallow"
+            Build.VERSION_CODES.N -> "7.0 Nougat"
+            Build.VERSION_CODES.N_MR1 -> "7.1 Nougat"
+            Build.VERSION_CODES.O -> "8.0 Oreo"
+            Build.VERSION_CODES.O_MR1 -> "8.1 Oreo"
+            Build.VERSION_CODES.P -> "9.0 Pie"
+            Build.VERSION_CODES.Q -> "10 (Q)"
+            Build.VERSION_CODES.R -> "11 (R)"
+            Build.VERSION_CODES.S -> "12 (S)"
+            Build.VERSION_CODES.S_V2 -> "12L"
+            Build.VERSION_CODES.TIRAMISU -> "13 Tiramisu"
+            else -> "Sdk: $version"
         }
-        chip_group_holder.addView(chip);
     }
 
-    private String parseAndroidVersion(int version) {
-        return switch (version) {
-            case Build.VERSION_CODES.JELLY_BEAN -> "4.1 JellyBean";
-            case Build.VERSION_CODES.JELLY_BEAN_MR1 -> "4.2 JellyBean";
-            case Build.VERSION_CODES.JELLY_BEAN_MR2 -> "4.3 JellyBean";
-            case Build.VERSION_CODES.KITKAT -> "4.4 KitKat";
-            case Build.VERSION_CODES.KITKAT_WATCH -> "4.4 KitKat Watch";
-            case Build.VERSION_CODES.LOLLIPOP -> "5.0 Lollipop";
-            case Build.VERSION_CODES.LOLLIPOP_MR1 -> "5.1 Lollipop";
-            case Build.VERSION_CODES.M -> "6.0 Marshmallow";
-            case Build.VERSION_CODES.N -> "7.0 Nougat";
-            case Build.VERSION_CODES.N_MR1 -> "7.1 Nougat";
-            case Build.VERSION_CODES.O -> "8.0 Oreo";
-            case Build.VERSION_CODES.O_MR1 -> "8.1 Oreo";
-            case Build.VERSION_CODES.P -> "9.0 Pie";
-            case Build.VERSION_CODES.Q -> "10 (Q)";
-            case Build.VERSION_CODES.R -> "11 (R)";
-            case Build.VERSION_CODES.S -> "12 (S)";
-            case Build.VERSION_CODES.S_V2 -> "12L";
-            case Build.VERSION_CODES.TIRAMISU -> "13 Tiramisu";
-            default -> "Sdk: " + version;
-        };
+    override fun onResume() {
+        super.onResume()
+        val footer = findViewById<View>(R.id.markdownFooter)
+        if (footer != null) footer.minimumHeight = this.navigationBarHeight
     }
 
-    @Override
-    protected void onResume() {
-        super.onResume();
-        View footer = findViewById(R.id.markdownFooter);
-        if (footer != null) footer.setMinimumHeight(this.getNavigationBarHeight());
+    companion object {
+        private val redirects = HashMap<String, String>(4)
+        private val variants = arrayOf("readme.md", "README.MD", ".github/README.md")
+        @Throws(IOException::class)
+        private fun getRawMarkdown(url: String): ByteArray {
+            var newUrl = redirects[url]
+            return if (newUrl != null && newUrl != url) {
+                Http.doHttpGet(newUrl, true)
+            } else try {
+                Http.doHttpGet(url, true)
+            } catch (e: IOException) {
+                // Workaround GitHub README.md case sensitivity issue
+                if (url.startsWith("https://raw.githubusercontent.com/") && url.endsWith("/README.md")) {
+                    val prefix = url.substring(0, url.length - 9)
+                    for (suffix in variants) {
+                        newUrl = prefix + suffix
+                        try { // Try with lowercase version
+                            val rawMarkdown = Http.doHttpGet(prefix + suffix, true)
+                            redirects[url] = newUrl // Avoid retries
+                            return rawMarkdown
+                        } catch (ignored: IOException) {
+                        }
+                    }
+                }
+                throw e
+            }
+        }
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/fox2code/mmm/markdown/MarkdownChip.kt b/app/src/main/java/com/fox2code/mmm/markdown/MarkdownChip.kt
index 5665c8f..ca97e9a 100644
--- a/app/src/main/java/com/fox2code/mmm/markdown/MarkdownChip.kt
+++ b/app/src/main/java/com/fox2code/mmm/markdown/MarkdownChip.kt
@@ -1,19 +1,21 @@
-package com.fox2code.mmm.markdown;
+package com.fox2code.mmm.markdown
 
-import androidx.annotation.StringRes;
+import androidx.annotation.StringRes
+import com.fox2code.mmm.R
 
-import com.fox2code.mmm.R;
-
-public enum MarkdownChip {
-    CHANGE_BOOT(R.string.module_can_change_boot, R.string.module_can_change_boot_desc),
-    NEED_RAMDISK(R.string.module_needs_ramdisk, R.string.module_needs_ramdisk_desc),
-    MIN_MAGISK(R.string.module_min_magisk_chip, 0),
-    MIN_SDK(R.string.module_min_sdk_chip, 0),
-    MAX_SDK(R.string.module_max_sdk_chip, 0);
-    @StringRes public final int title, desc;
-
-    MarkdownChip(@StringRes int title,@StringRes int desc) {
-        this.title = title;
-        this.desc = desc;
-    }
-}
+enum class MarkdownChip(
+    @field:StringRes @param:StringRes val title: Int,
+    @field:StringRes @param:StringRes val desc: Int
+) {
+    CHANGE_BOOT(
+        R.string.module_can_change_boot,
+        R.string.module_can_change_boot_desc
+    ),
+    NEED_RAMDISK(
+        R.string.module_needs_ramdisk, R.string.module_needs_ramdisk_desc
+    ),
+    MIN_MAGISK(R.string.module_min_magisk_chip, 0), MIN_SDK(
+        R.string.module_min_sdk_chip, 0
+    ),
+    MAX_SDK(R.string.module_max_sdk_chip, 0)
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/fox2code/mmm/markdown/MarkdownUrlLinker.kt b/app/src/main/java/com/fox2code/mmm/markdown/MarkdownUrlLinker.kt
index 1385cc7..95326fc 100644
--- a/app/src/main/java/com/fox2code/mmm/markdown/MarkdownUrlLinker.kt
+++ b/app/src/main/java/com/fox2code/mmm/markdown/MarkdownUrlLinker.kt
@@ -1,57 +1,51 @@
-package com.fox2code.mmm.markdown;
+package com.fox2code.mmm.markdown
 
-import java.util.ArrayList;
+import timber.log.Timber
 
-import timber.log.Timber;
-
-public enum MarkdownUrlLinker {
+enum class MarkdownUrlLinker {
     ;
 
-    public static String urlLinkify(String url) {
-        int index = url.indexOf("https://");
-        if (index == -1)
-            return url;
-        ArrayList<LinkifyTask> linkifyTasks = new ArrayList<>();
-        int extra = 0;
-        while (index != -1) {
-            int end = url.indexOf(' ', index);
-            end = end == -1 ? url.indexOf('\n', index) : Math.min(url.indexOf('\n', index), end);
-            if (end == -1)
-                end = url.length();
-            if (index == 0 || '\n' == url.charAt(index - 1) || ' ' == url.charAt(index - 1)) {
-                int endDomain = url.indexOf('/', index + 9);
-                char endCh = url.charAt(end - 1);
-                if (endDomain != -1 && endDomain < end && endCh != '>' && endCh != ')' && endCh != ']') {
-                    linkifyTasks.add(new LinkifyTask(index, end));
-                    extra += (end - index) + 4;
-                    Timber.d("Linkify url: %s", url.substring(end));
-                }
-            }
-            index = url.indexOf("https://", end);
+    private class LinkifyTask(val start: Int, val end: Int) {
+        companion object {
+            val NULL = LinkifyTask(0, 0)
         }
-        if (linkifyTasks.isEmpty())
-            return url;
-        LinkifyTask prev = LinkifyTask.NULL;
-        StringBuilder stringBuilder = new StringBuilder(url.length() + extra);
-        for (LinkifyTask linkifyTask : linkifyTasks) {
-            stringBuilder.append(url, prev.end, linkifyTask.start).append('[').append(url, linkifyTask.start, linkifyTask.end).append("](").append(url, linkifyTask.start, linkifyTask.end).append(')');
-            prev = linkifyTask;
-        }
-        if (prev.end != url.length())
-            stringBuilder.append(url, prev.end, url.length());
-        Timber.i("Added Markdown link to " + linkifyTasks.size() + " urls");
-        return stringBuilder.toString();
     }
 
-    private static class LinkifyTask {
-        static final LinkifyTask NULL = new LinkifyTask(0, 0);
-
-        private final int start;
-        private final int end;
-
-        private LinkifyTask(int start, int end) {
-            this.start = start;
-            this.end = end;
+    companion object {
+        @JvmStatic
+        fun urlLinkify(url: String): String {
+            var index = url.indexOf("https://")
+            if (index == -1) return url
+            val linkifyTasks = ArrayList<LinkifyTask>()
+            var extra = 0
+            while (index != -1) {
+                var end = url.indexOf(' ', index)
+                end = if (end == -1) url.indexOf('\n', index) else url.indexOf('\n', index)
+                    .coerceAtMost(end)
+                if (end == -1) end = url.length
+                if (index == 0 || '\n' == url[index - 1] || ' ' == url[index - 1]) {
+                    val endDomain = url.indexOf('/', index + 9)
+                    val endCh = url[end - 1]
+                    if (endDomain != -1 && endDomain < end && endCh != '>' && endCh != ')' && endCh != ']') {
+                        linkifyTasks.add(LinkifyTask(index, end))
+                        extra += end - index + 4
+                        Timber.d("Linkify url: %s", url.substring(end))
+                    }
+                }
+                index = url.indexOf("https://", end)
+            }
+            if (linkifyTasks.isEmpty()) return url
+            var prev = LinkifyTask.NULL
+            val stringBuilder = StringBuilder(url.length + extra)
+            for (linkifyTask in linkifyTasks) {
+                stringBuilder.append(url, prev.end, linkifyTask.start).append('[')
+                    .append(url, linkifyTask.start, linkifyTask.end).append("](")
+                    .append(url, linkifyTask.start, linkifyTask.end).append(')')
+                prev = linkifyTask
+            }
+            if (prev.end != url.length) stringBuilder.append(url, prev.end, url.length)
+            Timber.i("Added Markdown link to " + linkifyTasks.size + " urls")
+            return stringBuilder.toString()
         }
     }
-}
+}
\ No newline at end of file