feat: Add Check environment patch

app/src/main/java/app/revanced/integrations/shared/checks/Check.java

@@ -0,0 +1,112 @@
+package app.revanced.integrations.shared.checks;
+
+import android.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.text.Html;
+import android.widget.Button;
+import app.revanced.integrations.shared.Logger;
+import app.revanced.integrations.shared.Utils;
+import app.revanced.integrations.youtube.settings.Settings;
+
+import static android.text.Html.FROM_HTML_MODE_COMPACT;
+import static app.revanced.integrations.shared.StringRef.str;
+
+abstract class Check {
+    private static final Uri GOOD_SOURCE = Uri.parse("https://revanced.app");
+    private static final AlertDialog.Builder CHECK_FAILED_DIALOG_BUILDER = new AlertDialog.Builder(Utils.getContext())
+            .setCancelable(false)
+            .setIcon(android.R.drawable.ic_dialog_alert)
+            .setTitle(str("revanced_check_environment_failed_title"))
+            .setPositiveButton(str("revanced_check_environment_dialog_open_official_source_button"), (dialog, which) -> {
+                final var intent = new Intent(Intent.ACTION_VIEW, GOOD_SOURCE);
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                Utils.getContext().startActivity(intent);
+            })
+            .setNegativeButton(str("revanced_check_environment_dialog_ignore_button"), (dialog, which) -> {
+                final int current = Settings.CHECK_ENVIRONMENT_WARNING_ISSUED_COUNT.get();
+                Settings.CHECK_ENVIRONMENT_WARNING_ISSUED_COUNT.save(current + 1);
+
+                dialog.dismiss();
+            });
+
+
+    private final String failedReasonStringKey;
+
+    /**
+     * @param failedReasonStringKey The string key of the reason why the check failed to be shown to the user.
+     */
+    Check(String failedReasonStringKey) {
+        this.failedReasonStringKey = failedReasonStringKey;
+    }
+
+    protected abstract boolean run();
+
+    static boolean shouldRun() {
+        return Settings.CHECK_ENVIRONMENT_WARNING_ISSUED_COUNT.get() < 2;
+    }
+
+    static void disableForever() {
+        Logger.printDebug(() -> "Environment checks disabled forever.");
+
+        Settings.CHECK_ENVIRONMENT_WARNING_ISSUED_COUNT.save(Integer.MAX_VALUE);
+    }
+
+    @SuppressLint("NewApi")
+    static void issueWarning(Check... failedChecks) {
+        final var reasons = new StringBuilder();
+
+        reasons.append("<ul>");
+
+        for (var check : failedChecks) {
+            reasons.append("<li>").append(str(check.failedReasonStringKey));
+        }
+
+        reasons.append("</ul>");
+
+        final var finalMessage = Html.fromHtml(
+                String.format(str("revanced_check_environment_failed_message"), reasons),
+                FROM_HTML_MODE_COMPACT
+        );
+        AlertDialog dialog = CHECK_FAILED_DIALOG_BUILDER.setMessage(finalMessage).create();
+
+        var dismissButton = dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
+        // TODO: setEnabled called on null? If this line is commented out getting:
+        //  Unable to add window -- token null is not valid; is your activity running?
+        dismissButton.setEnabled(false);
+
+        dialog.show();
+
+        Utils.runOnMainThread(getCountdownRunnable(dismissButton));
+    }
+
+    private static Runnable getCountdownRunnable(Button dismissButton) {
+        // Using a reference to an array to be able to modify the value in the Runnable.
+        final int[] secondsRemaining = {5};
+
+        return new Runnable() {
+            @Override
+            public void run() {
+                // Reduce the remaining time by 1 second, but only show the countdown when 3 seconds are left
+                // to not draw the user's attention to the dismiss button too early.
+                if (secondsRemaining[0] > 0) {
+                    if (secondsRemaining[0] <= 3) {
+                        dismissButton.setText(String.format(
+                                str("revanced_check_environment_dialog_ignore_button_countdown"),
+                                secondsRemaining[0])
+                        );
+                    }
+
+                    secondsRemaining[0]--;
+
+                    Utils.runOnMainThreadDelayed(this, 1000);
+                } else {
+                    dismissButton.setText(str("revanced_check_environment_dialog_ignore_button"));
+                    dismissButton.setEnabled(true);
+                }
+            }
+        };
+    }
+}