New exchange api errors file

Author: i5hi

lib/features/fund_exchange/presentation/fund_exchange_api_error_copy.dart

@@ -0,0 +1,45 @@
+import 'package:bb_mobile/generated/l10n/localization.dart';
+
+class FundExchangeApiErrorCopy {
+  FundExchangeApiErrorCopy._();
+
+  static String? title(String? code, AppLocalizations loc) => switch (code) {
+    'ERR_ORD_PO404' => loc.fundExchangeErrorTitleOrdPo404,
+    'ERR_RCP_PO404' => loc.fundExchangeErrorTitleRcpPo404,
+    'ERR_RCP_POSINPE404' => loc.fundExchangeErrorTitleRcpPosinpe404,
+    'ERR_ORD_KYC400' => loc.fundExchangeErrorTitleOrdKyc400,
+    'ERR_ORD_COP400' => loc.fundExchangeErrorTitleOrdCop400,
+    'ERR_ORD_CSRCP400' => loc.fundExchangeErrorTitleOrdCsrcp400,
+    'ERR_RCP_400' => loc.fundExchangeErrorTitleRcp400,
+    _ => null,
+  };
+
+  static String message({
+    required String? code,
+    required String backendMessage,
+    required Map<String, String>? messageData,
+    required AppLocalizations loc,
+  }) {
+    if (code == 'ERR_RCP_400') {
+      return backendMessage.isNotEmpty
+          ? backendMessage
+          : loc.fundExchangeErrorRcp400;
+    }
+
+    return switch (code) {
+      'ERR_ORD_PO404' => loc.fundExchangeErrorOrdPo404,
+      'ERR_RCP_PO404' => loc.fundExchangeErrorRcpPo404,
+      'ERR_RCP_POSINPE404' => loc.fundExchangeErrorRcpPosinpe404,
+      'ERR_ORD_KYC400' => loc.fundExchangeErrorOrdKyc400(
+        messageData?['missingFields'] ?? '',
+      ),
+      'ERR_ORD_COP400' => loc.fundExchangeErrorOrdCop400(
+        messageData?['error'] ?? backendMessage,
+      ),
+      'ERR_ORD_CSRCP400' => loc.fundExchangeErrorOrdCsrcp400(
+        messageData?['iban'] ?? '',
+      ),
+      _ => loc.fundExchangeErrorLoadingDetails,
+    };
+  }
+}

lib/features/fund_exchange/presentation/widgets/fund_exchange_error_text.dart

@@ -0,0 +1,52 @@
+import 'package:bb_mobile/core/themes/app_theme.dart';
+import 'package:bb_mobile/core/utils/build_context_x.dart';
+import 'package:bb_mobile/core/widgets/text/text.dart';
+import 'package:bb_mobile/features/fund_exchange/presentation/fund_exchange_presentation_error.dart';
+import 'package:flutter/material.dart';
+
+class FundExchangeErrorText extends StatelessWidget {
+  const FundExchangeErrorText({
+    super.key,
+    required this.error,
+    this.textAlign = TextAlign.center,
+  });
+
+  final FundExchangePresentationError error;
+  final TextAlign textAlign;
+
+  @override
+  Widget build(BuildContext context) {
+    final title = error.displayTitle(context.loc);
+    final message = error.displayMessage(context.loc);
+
+    if (title == null) {
+      return BBText(
+        message,
+        style: context.font.bodyMedium,
+        color: Theme.of(context).colorScheme.error,
+        textAlign: textAlign,
+      );
+    }
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        BBText(
+          title,
+          style: context.font.bodyLarge?.copyWith(
+            fontWeight: FontWeight.bold,
+            color: Theme.of(context).colorScheme.error,
+          ),
+          textAlign: textAlign,
+        ),
+        const SizedBox(height: 4),
+        BBText(
+          message,
+          style: context.font.bodyMedium,
+          color: Theme.of(context).colorScheme.error,
+          textAlign: textAlign,
+        ),
+      ],
+    );
+  }
+}