simple support for nip07

lib/util/permission_check_mixin.dart

@@ -0,0 +1,83 @@
+import 'package:flutter/material.dart';
+import 'package:nostr_sdk/signer/nostr_signer.dart';
+import 'package:nowser/component/auth_dialog/auth_app_connect_dialog.dart';
+import 'package:nowser/component/auth_dialog/auth_dialog.dart';
+import 'package:nowser/const/auth_result.dart';
+import 'package:nowser/data/auth_log.dart';
+import 'package:nowser/main.dart';
+
+import '../const/connect_type.dart';
+import '../data/app.dart';
+
+mixin PermissionCheckMixin {
+  Future<void> checkPermission(BuildContext context, int appType, String code,
+      int authType, Function reject, Function(App, NostrSigner) confirm,
+      {int? eventKind, String? authDetail}) async {
+    var app = appProvider.getApp(appType, code);
+    if (app == null) {
+      // app is null, app connect
+      var newApp = await getApp(appType, code);
+      await AuthAppConnectDialog.show(context, newApp);
+      // reload from provider
+      app = appProvider.getApp(appType, code);
+    }
+
+    if (app == null) {
+      // not allow connect
+      reject();
+      return;
+    }
+
+    var signer = getSigner(app.pubkey!);
+    if (signer == null) {
+      reject();
+      return;
+    }
+
+    if (app.connectType == ConnectType.FULLY_TRUST) {
+      saveAuthLog(app, authType, eventKind, authDetail, AuthResult.OK);
+      confirm(app, signer);
+      return;
+    } else if (app.connectType == ConnectType.REASONABLE) {
+      var permissionCheckResult = appProvider
+          .checkPermission(appType, code, authType, eventKind: eventKind);
+      print("permissionCheckResult $permissionCheckResult");
+      if (permissionCheckResult == AuthResult.OK) {
+        saveAuthLog(app, authType, eventKind, authDetail, AuthResult.OK);
+        confirm(app, signer);
+        return;
+      } else if (permissionCheckResult == AuthResult.REJECT) {
+        saveAuthLog(app, authType, eventKind, authDetail, AuthResult.REJECT);
+        reject();
+        return;
+      }
+
+      var authResult = await AuthDialog.show(context, app, authType,
+          eventKind: eventKind, authDetail: authDetail);
+      if (authResult == AuthResult.OK) {
+        saveAuthLog(app, authType, eventKind, authDetail, AuthResult.OK);
+        confirm(app, signer);
+        return;
+      }
+    }
+
+    saveAuthLog(app, authType, eventKind, authDetail, AuthResult.REJECT);
+    reject();
+    return;
+  }
+
+  void saveAuthLog(App app, int authType, int? eventKind, String? authDetail,
+      int authResult) {
+    // TODO
+  }
+
+  // this method should override
+  Future<App> getApp(int appType, String code) async {
+    // TODO name, image
+    return App(appType: appType, code: code);
+  }
+
+  NostrSigner? getSigner(String pubkey) {
+    return keyProvider.getSigner(pubkey);
+  }
+}