Implement tender workflows and dashboard integration

lib/data/services/api/home_api.dart

@@ -14,7 +14,7 @@ class HomeApi {
   }
 
   static const String tenderApprovalStats = '/api/v1/tender-approvals/stats';
-  static const String statsCompany = '/api/v1/feedback/stats/company';
+  static const String statsCustomer = '/api/v1/feedback/stats/customer';
   static const String checkUnreadNotifications =
       '/api/v1/notifications?seen=false&limit=1&event_type=PUSH';
 }

lib/data/services/api/liked_tenders_api.dart

@@ -9,8 +9,8 @@ class LikedTendersApi {
     required String dateTo,
   }) {
     if (dateFrom.isNotEmpty && dateTo.isNotEmpty) {
-      return '$tendersFeedback?feedback_type=$feedbackType&limit=$limit&offset=$offset&date_from=$dateFrom&date_to=$dateTo';
+      return '$tendersFeedback?feedback_type=$feedbackType&limit=$limit&offset=$offset&include_total=true&date_from=$dateFrom&date_to=$dateTo';
     }
-    return '$tendersFeedback?feedback_type=$feedbackType&limit=$limit&offset=$offset';
+    return '$tendersFeedback?feedback_type=$feedbackType&limit=$limit&offset=$offset&include_total=true';
   }
 }

lib/data/services/api/tender_submissions_api.dart

@@ -0,0 +1,10 @@
+class TenderSubmissionsApi {
+  static const String base = '/api/v1/tender-submissions';
+
+  static const String list = base;
+  static const String stats = '$base/stats';
+  static String byId(String id) => '$base/$id';
+  static String byTender(String tenderId) => '$base/tender/$tenderId';
+  static String ensure(String tenderId) => '$base/tender/$tenderId/ensure';
+  static String status(String id) => '$base/$id/status';
+}

lib/data/services/home_service.dart

@@ -35,7 +35,7 @@ class HomeService {
 
   Future<Result<FeedbackStatResponse>> getFeedbackStats() async {
     final result = await _networkManager.makeRequest(
-      HomeApi.statsCompany,
+      HomeApi.statsCustomer,
       (json) => FeedbackStatResponse.fromJson(json),
       method: 'GET',
     );
@@ -44,7 +44,7 @@ class HomeService {
 
   Future<Result<Map<String, dynamic>>> checkUnreadNotifications() async {
     final result = await _networkManager.makeRequest(
-            HomeApi.checkUnreadNotifications,
+      HomeApi.checkUnreadNotifications,
       (json) => json,
       method: 'GET',
     );

lib/data/services/liked_tenders_service.dart

@@ -22,11 +22,20 @@ class LikedTendersService {
       dateTo: requestModel.dateTo,
     );
 
-    final result = await _networkManager.makeRequest(
-      uri,
-      (json) => LikedTendersResponse.fromJson(json),
-      method: 'GET',
-    );
+    final result = await _networkManager.makeRequest(uri, (json) {
+      // Feedback pagination is returned at the envelope root, while the
+      // legacy app model stores it beside data.feedback.
+      final normalized = Map<String, dynamic>.from(json);
+      final data = normalized['data'];
+      final meta = normalized['meta'];
+      if (data is Map && meta is Map) {
+        normalized['data'] = {
+          ...Map<String, dynamic>.from(data),
+          'meta': Map<String, dynamic>.from(meta),
+        };
+      }
+      return LikedTendersResponse.fromJson(normalized);
+    }, method: 'GET');
 
     return result;
   }

lib/data/services/model/tender_submission/tender_submission.dart

@@ -0,0 +1,235 @@
+import 'package:tm_app/core/utils/date_utils.dart';
+import 'package:tm_app/data/services/model/tender_data/tender_data.dart';
+
+class TenderSubmissionResponse {
+  const TenderSubmissionResponse({
+    required this.success,
+    required this.message,
+    required this.data,
+  });
+
+  final bool success;
+  final String? message;
+  final TenderSubmission? data;
+
+  factory TenderSubmissionResponse.fromJson(Map<String, dynamic> json) {
+    final data = json['data'];
+    return TenderSubmissionResponse(
+      success: json['success'] == true,
+      message: json['message'] as String?,
+      data:
+          data is Map<String, dynamic> ? TenderSubmission.fromJson(data) : null,
+    );
+  }
+}
+
+class TenderSubmissionsResponse {
+  const TenderSubmissionsResponse({
+    required this.success,
+    required this.message,
+    required this.data,
+    required this.meta,
+  });
+
+  final bool success;
+  final String? message;
+  final List<TenderSubmission> data;
+  final TenderSubmissionsMeta? meta;
+
+  factory TenderSubmissionsResponse.fromJson(Map<String, dynamic> json) {
+    final items = json['data'];
+    return TenderSubmissionsResponse(
+      success: json['success'] == true,
+      message: json['message'] as String?,
+      data:
+          items is List
+              ? items
+                  .whereType<Map>()
+                  .map(
+                    (item) => TenderSubmission.fromJson(
+                      Map<String, dynamic>.from(item),
+                    ),
+                  )
+                  .toList()
+              : const [],
+      meta:
+          json['meta'] is Map
+              ? TenderSubmissionsMeta.fromJson(
+                Map<String, dynamic>.from(json['meta'] as Map),
+              )
+              : null,
+    );
+  }
+}
+
+class TenderSubmission {
+  const TenderSubmission({
+    required this.id,
+    required this.tenderId,
+    required this.companyId,
+    required this.customerId,
+    required this.status,
+    required this.stage,
+    required this.submissionMode,
+    required this.statusHistory,
+    required this.createdAt,
+    required this.updatedAt,
+    required this.tender,
+  });
+
+  final String id;
+  final String tenderId;
+  final String? companyId;
+  final String? customerId;
+  final String status;
+  final String stage;
+  final String? submissionMode;
+  final List<TenderSubmissionHistory> statusHistory;
+  final int? createdAt;
+  final int? updatedAt;
+  final TenderData? tender;
+
+  bool get isTerminal =>
+      status == 'rejected' || status == 'contract' || status == 'not_applied';
+
+  factory TenderSubmission.fromJson(Map<String, dynamic> json) {
+    final history = json['status_history'];
+    final tenderJson = json['tender'];
+    return TenderSubmission(
+      id: json['id']?.toString() ?? '',
+      tenderId: json['tender_id']?.toString() ?? '',
+      companyId: json['company_id']?.toString(),
+      customerId: json['customer_id']?.toString(),
+      status: json['status']?.toString() ?? 'opportunity',
+      stage: json['stage']?.toString() ?? 'opportunity',
+      submissionMode: json['submission_mode']?.toString(),
+      statusHistory:
+          history is List
+              ? history
+                  .whereType<Map>()
+                  .map(
+                    (item) => TenderSubmissionHistory.fromJson(
+                      Map<String, dynamic>.from(item),
+                    ),
+                  )
+                  .toList()
+              : const [],
+      createdAt: unixTimestampFromJson(json['created_at']),
+      updatedAt: unixTimestampFromJson(json['updated_at']),
+      tender:
+          tenderJson is Map
+              ? TenderData.fromJson(Map<String, dynamic>.from(tenderJson))
+              : null,
+    );
+  }
+}
+
+class TenderSubmissionHistory {
+  const TenderSubmissionHistory({
+    required this.status,
+    required this.reason,
+    required this.changedBy,
+    required this.changedAt,
+    required this.description,
+  });
+
+  final String status;
+  final String? reason;
+  final String? changedBy;
+  final int? changedAt;
+  final String? description;
+
+  factory TenderSubmissionHistory.fromJson(Map<String, dynamic> json) {
+    return TenderSubmissionHistory(
+      status: json['status']?.toString() ?? '',
+      reason: json['reason']?.toString(),
+      changedBy: json['changed_by']?.toString(),
+      changedAt: unixTimestampFromJson(json['changed_at']),
+      description: json['description']?.toString(),
+    );
+  }
+}
+
+class TenderSubmissionsMeta {
+  const TenderSubmissionsMeta({
+    required this.total,
+    required this.limit,
+    required this.offset,
+    required this.page,
+    required this.pages,
+    required this.hasMore,
+  });
+
+  final int total;
+  final int limit;
+  final int offset;
+  final int page;
+  final int pages;
+  final bool hasMore;
+
+  factory TenderSubmissionsMeta.fromJson(Map<String, dynamic> json) {
+    int number(String key) => (json[key] as num?)?.toInt() ?? 0;
+    return TenderSubmissionsMeta(
+      total: number('total'),
+      limit: number('limit'),
+      offset: number('offset'),
+      page: number('page'),
+      pages: number('pages'),
+      hasMore: json['has_more'] == true,
+    );
+  }
+}
+
+class TenderSubmissionStatsResponse {
+  const TenderSubmissionStatsResponse({
+    required this.success,
+    required this.data,
+  });
+
+  final bool success;
+  final TenderSubmissionStats? data;
+
+  factory TenderSubmissionStatsResponse.fromJson(Map<String, dynamic> json) {
+    return TenderSubmissionStatsResponse(
+      success: json['success'] == true,
+      data:
+          json['data'] is Map
+              ? TenderSubmissionStats.fromJson(
+                Map<String, dynamic>.from(json['data'] as Map),
+              )
+              : null,
+    );
+  }
+}
+
+class TenderSubmissionStats {
+  const TenderSubmissionStats({
+    required this.companyId,
+    required this.total,
+    required this.byStage,
+    required this.byStatus,
+    required this.lastUpdated,
+  });
+
+  final String? companyId;
+  final int total;
+  final Map<String, int> byStage;
+  final Map<String, int> byStatus;
+  final int? lastUpdated;
+
+  factory TenderSubmissionStats.fromJson(Map<String, dynamic> json) {
+    Map<String, int> counts(value) =>
+        value is Map
+            ? value.map(
+              (key, value) => MapEntry(key.toString(), (value as num).toInt()),
+            )
+            : const {};
+    return TenderSubmissionStats(
+      companyId: json['company_id']?.toString(),
+      total: (json['total'] as num?)?.toInt() ?? 0,
+      byStage: counts(json['by_stage']),
+      byStatus: counts(json['by_status']),
+      lastUpdated: unixTimestampFromJson(json['last_updated']),
+    );
+  }
+}

lib/data/services/tender_submissions_service.dart

@@ -0,0 +1,84 @@
+import 'package:tm_app/core/network/network_manager.dart';
+import 'package:tm_app/core/utils/result.dart';
+import 'package:tm_app/data/services/api/tender_submissions_api.dart';
+import 'package:tm_app/data/services/model/tender_submission/tender_submission.dart';
+
+class TenderSubmissionsService {
+  TenderSubmissionsService({required NetworkManager networkManager})
+    : _networkManager = networkManager;
+
+  final NetworkManager _networkManager;
+
+  Future<Result<TenderSubmissionsResponse>> getSubmissions({
+    List<String>? statuses,
+    List<String>? stages,
+    int? createdFrom,
+    int? createdTo,
+    int limit = 20,
+    int offset = 0,
+    String sortBy = 'updated_at',
+    String sortOrder = 'desc',
+  }) {
+    return _networkManager.makeRequest(
+      TenderSubmissionsApi.list,
+      TenderSubmissionsResponse.fromJson,
+      queryParameters: {
+        if (statuses?.isNotEmpty == true) 'status': statuses,
+        if (stages?.isNotEmpty == true) 'stage': stages,
+        if (createdFrom != null) 'created_from': createdFrom,
+        if (createdTo != null) 'created_to': createdTo,
+        'limit': limit,
+        'offset': offset,
+        'sort_by': sortBy,
+        'sort_order': sortOrder,
+      },
+    );
+  }
+
+  Future<Result<TenderSubmissionResponse>> getById(String id) =>
+      _networkManager.makeRequest(
+        TenderSubmissionsApi.byId(id),
+        TenderSubmissionResponse.fromJson,
+      );
+
+  Future<Result<TenderSubmissionResponse>> getByTender(String tenderId) =>
+      _networkManager.makeRequest(
+        TenderSubmissionsApi.byTender(tenderId),
+        TenderSubmissionResponse.fromJson,
+      );
+
+  Future<Result<TenderSubmissionResponse>> ensure(
+    String tenderId, {
+    String? companyId,
+  }) => _networkManager.makeRequest(
+    TenderSubmissionsApi.ensure(tenderId),
+    TenderSubmissionResponse.fromJson,
+    method: 'POST',
+    queryParameters: {
+      if (companyId?.isNotEmpty == true) 'company_id': companyId,
+    },
+  );
+
+  Future<Result<TenderSubmissionResponse>> updateStatus({
+    required String id,
+    required String status,
+    String? reason,
+    String? description,
+  }) => _networkManager.makeRequest(
+    TenderSubmissionsApi.status(id),
+    TenderSubmissionResponse.fromJson,
+    method: 'PATCH',
+    data: {
+      'status': status,
+      if (reason?.trim().isNotEmpty == true) 'reason': reason!.trim(),
+      if (description?.trim().isNotEmpty == true)
+        'description': description!.trim(),
+    },
+  );
+
+  Future<Result<TenderSubmissionStatsResponse>> getStats() =>
+      _networkManager.makeRequest(
+        TenderSubmissionsApi.stats,
+        TenderSubmissionStatsResponse.fromJson,
+      );
+}