tasq/lib/providers/it_service_request_provider.dart

654 lines
20 KiB
Dart

import 'dart:async';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:supabase_flutter/supabase_flutter.dart';
import 'package:flutter/material.dart';
import '../models/it_service_request.dart';
import '../models/it_service_request_assignment.dart';
import '../models/it_service_request_activity_log.dart';
import '../models/it_service_request_action.dart';
import 'profile_provider.dart';
import 'supabase_provider.dart';
import 'user_offices_provider.dart';
import 'stream_recovery.dart';
import 'realtime_controller.dart';
// ---------------------------------------------------------------------------
// Query parameters
// ---------------------------------------------------------------------------
class ItServiceRequestQuery {
const ItServiceRequestQuery({
this.offset = 0,
this.limit = 50,
this.searchQuery = '',
this.officeId,
this.status,
this.dateRange,
});
final int offset;
final int limit;
final String searchQuery;
final String? officeId;
final String? status;
final DateTimeRange? dateRange;
ItServiceRequestQuery copyWith({
int? offset,
int? limit,
String? searchQuery,
String? officeId,
String? status,
DateTimeRange? dateRange,
}) {
return ItServiceRequestQuery(
offset: offset ?? this.offset,
limit: limit ?? this.limit,
searchQuery: searchQuery ?? this.searchQuery,
officeId: officeId ?? this.officeId,
status: status ?? this.status,
dateRange: dateRange ?? this.dateRange,
);
}
}
final itServiceRequestQueryProvider = StateProvider<ItServiceRequestQuery>(
(ref) => const ItServiceRequestQuery(),
);
// ---------------------------------------------------------------------------
// Stream providers
// ---------------------------------------------------------------------------
final itServiceRequestsProvider = StreamProvider<List<ItServiceRequest>>((ref) {
final userId = ref.watch(currentUserIdProvider);
if (userId == null) return const Stream.empty();
final client = ref.watch(supabaseClientProvider);
final profile = ref.watch(currentProfileProvider).valueOrNull;
final userOfficesAsync = ref.watch(userOfficesProvider);
final wrapper = StreamRecoveryWrapper<ItServiceRequest>(
stream: client
.from('it_service_requests')
.stream(primaryKey: ['id'])
.order('created_at', ascending: false),
onPollData: () async {
final data = await client
.from('it_service_requests')
.select()
.order('created_at', ascending: false);
return data.map(ItServiceRequest.fromMap).toList();
},
fromMap: ItServiceRequest.fromMap,
channelName: 'it_service_requests',
onStatusChanged: ref.read(realtimeControllerProvider).handleChannelStatus,
);
ref.onDispose(wrapper.dispose);
return wrapper.stream.map((result) {
var items = result.data;
// Standard users see only requests from their offices or created by them
if (profile != null && profile.role == 'standard') {
final officeIds = (userOfficesAsync.valueOrNull ?? [])
.where((a) => a.userId == userId)
.map((a) => a.officeId)
.toSet();
items = items
.where(
(r) =>
r.creatorId == userId ||
(r.officeId != null && officeIds.contains(r.officeId)),
)
.toList();
}
return items;
});
});
final itServiceRequestByIdProvider = Provider.family<ItServiceRequest?, String>(
(ref, id) {
final requests = ref.watch(itServiceRequestsProvider).valueOrNull;
if (requests == null) return null;
try {
return requests.firstWhere((r) => r.id == id);
} catch (_) {
return null;
}
},
);
final itServiceRequestAssignmentsProvider =
StreamProvider<List<ItServiceRequestAssignment>>((ref) {
final userId = ref.watch(currentUserIdProvider);
if (userId == null) return const Stream.empty();
final client = ref.watch(supabaseClientProvider);
final wrapper = StreamRecoveryWrapper<ItServiceRequestAssignment>(
stream: client
.from('it_service_request_assignments')
.stream(primaryKey: ['id'])
.order('created_at', ascending: false),
onPollData: () async {
final data = await client
.from('it_service_request_assignments')
.select()
.order('created_at', ascending: false);
return data.map(ItServiceRequestAssignment.fromMap).toList();
},
fromMap: ItServiceRequestAssignment.fromMap,
channelName: 'it_service_request_assignments',
onStatusChanged: ref
.read(realtimeControllerProvider)
.handleChannelStatus,
);
ref.onDispose(wrapper.dispose);
return wrapper.stream.map((result) => result.data);
});
final itServiceRequestActivityLogsProvider =
StreamProvider.family<List<ItServiceRequestActivityLog>, String>((
ref,
requestId,
) {
final client = ref.watch(supabaseClientProvider);
final wrapper = StreamRecoveryWrapper<ItServiceRequestActivityLog>(
stream: client
.from('it_service_request_activity_logs')
.stream(primaryKey: ['id'])
.eq('request_id', requestId)
.order('created_at', ascending: false),
onPollData: () async {
final data = await client
.from('it_service_request_activity_logs')
.select()
.eq('request_id', requestId)
.order('created_at', ascending: false);
return data.map(ItServiceRequestActivityLog.fromMap).toList();
},
fromMap: ItServiceRequestActivityLog.fromMap,
channelName: 'isr_activity_logs_$requestId',
onStatusChanged: ref
.read(realtimeControllerProvider)
.handleChannelStatus,
);
ref.onDispose(wrapper.dispose);
return wrapper.stream.map((result) => result.data);
});
final itServiceRequestActionsProvider =
StreamProvider.family<List<ItServiceRequestAction>, String>((
ref,
requestId,
) {
final client = ref.watch(supabaseClientProvider);
final wrapper = StreamRecoveryWrapper<ItServiceRequestAction>(
stream: client
.from('it_service_request_actions')
.stream(primaryKey: ['id'])
.eq('request_id', requestId)
.order('created_at', ascending: false),
onPollData: () async {
final data = await client
.from('it_service_request_actions')
.select()
.eq('request_id', requestId)
.order('created_at', ascending: false);
return data.map(ItServiceRequestAction.fromMap).toList();
},
fromMap: ItServiceRequestAction.fromMap,
channelName: 'isr_actions_$requestId',
onStatusChanged: ref
.read(realtimeControllerProvider)
.handleChannelStatus,
);
ref.onDispose(wrapper.dispose);
return wrapper.stream.map((result) => result.data);
});
// ---------------------------------------------------------------------------
// Controller
// ---------------------------------------------------------------------------
final itServiceRequestControllerProvider = Provider<ItServiceRequestController>(
(ref) {
final client = ref.watch(supabaseClientProvider);
return ItServiceRequestController(client);
},
);
class ItServiceRequestController {
ItServiceRequestController(this._client);
final SupabaseClient _client;
/// Creates a new IT Service Request with auto-generated number.
Future<Map<String, dynamic>> createRequest({
required String eventName,
required List<String> services,
String? servicesOther,
String? officeId,
String? requestedBy,
String? requestedByUserId,
String status = 'draft',
}) async {
final userId = _client.auth.currentUser?.id;
if (userId == null) throw Exception('Not authenticated');
try {
final result = await _client.rpc(
'insert_it_service_request_with_number',
params: {
'p_event_name': eventName,
'p_services': services,
'p_creator_id': userId,
'p_office_id': officeId,
'p_requested_by': requestedBy,
'p_requested_by_user_id': requestedByUserId,
'p_status': status,
},
);
final row = result is List
? (result.first as Map<String, dynamic>)
: result;
final requestId = row['id'] as String;
if (servicesOther != null && servicesOther.isNotEmpty) {
await _client
.from('it_service_requests')
.update({'services_other': servicesOther})
.eq('id', requestId);
}
// Activity log
await _client.from('it_service_request_activity_logs').insert({
'request_id': requestId,
'actor_id': userId,
'action_type': 'created',
});
return {'id': requestId, 'request_number': row['request_number']};
} catch (e) {
debugPrint('createRequest error: $e');
rethrow;
}
}
/// Updates IT Service Request fields.
Future<void> updateRequest({
required String requestId,
String? eventName,
List<String>? services,
String? servicesOther,
String? eventDetails,
DateTime? eventDate,
DateTime? eventEndDate,
DateTime? dryRunDate,
DateTime? dryRunEndDate,
String? contactPerson,
String? contactNumber,
String? remarks,
String? officeId,
String? requestedBy,
String? requestedByUserId,
String? approvedBy,
String? approvedByUserId,
bool? outsidePremiseAllowed,
DateTime? dateTimeReceived,
DateTime? dateTimeChecked,
}) async {
final updates = <String, dynamic>{};
if (eventName != null) updates['event_name'] = eventName;
if (services != null) updates['services'] = services;
if (servicesOther != null) updates['services_other'] = servicesOther;
if (eventDetails != null) updates['event_details'] = eventDetails;
if (eventDate != null) updates['event_date'] = eventDate.toIso8601String();
if (eventEndDate != null) {
updates['event_end_date'] = eventEndDate.toIso8601String();
}
if (dryRunDate != null) {
updates['dry_run_date'] = dryRunDate.toIso8601String();
}
if (dryRunEndDate != null) {
updates['dry_run_end_date'] = dryRunEndDate.toIso8601String();
}
if (contactPerson != null) updates['contact_person'] = contactPerson;
if (contactNumber != null) updates['contact_number'] = contactNumber;
if (remarks != null) updates['remarks'] = remarks;
if (officeId != null) updates['office_id'] = officeId;
if (requestedBy != null) updates['requested_by'] = requestedBy;
if (requestedByUserId != null) {
updates['requested_by_user_id'] = requestedByUserId;
}
if (approvedBy != null) updates['approved_by'] = approvedBy;
if (approvedByUserId != null) {
updates['approved_by_user_id'] = approvedByUserId;
}
if (outsidePremiseAllowed != null) {
updates['outside_premise_allowed'] = outsidePremiseAllowed;
}
if (dateTimeReceived != null) {
updates['date_time_received'] = dateTimeReceived.toIso8601String();
}
if (dateTimeChecked != null) {
updates['date_time_checked'] = dateTimeChecked.toIso8601String();
}
if (updates.isEmpty) return;
await _client
.from('it_service_requests')
.update(updates)
.eq('id', requestId);
// Log updated fields
final userId = _client.auth.currentUser?.id;
await _client.from('it_service_request_activity_logs').insert({
'request_id': requestId,
'actor_id': userId,
'action_type': 'updated',
'meta': {'fields': updates.keys.toList()},
});
}
/// Update only the status of an IT Service Request.
Future<void> updateStatus({
required String requestId,
required String status,
String? cancellationReason,
}) async {
final userId = _client.auth.currentUser?.id;
final updates = <String, dynamic>{'status': status};
if (status == 'scheduled') {
updates['approved_at'] = DateTime.now().toUtc().toIso8601String();
updates['approved_by_user_id'] = userId;
}
if (status == 'completed') {
updates['completed_at'] = DateTime.now().toUtc().toIso8601String();
}
if (status == 'cancelled') {
updates['cancelled_at'] = DateTime.now().toUtc().toIso8601String();
if (cancellationReason != null) {
updates['cancellation_reason'] = cancellationReason;
}
}
await _client
.from('it_service_requests')
.update(updates)
.eq('id', requestId);
await _client.from('it_service_request_activity_logs').insert({
'request_id': requestId,
'actor_id': userId,
'action_type': 'status_changed',
'meta': {'status': status},
});
}
/// Approve a request (admin only). Sets status to 'scheduled'.
Future<void> approveRequest({
required String requestId,
required String approverName,
}) async {
final userId = _client.auth.currentUser?.id;
await _client
.from('it_service_requests')
.update({
'status': 'scheduled',
'approved_by': approverName,
'approved_by_user_id': userId,
'approved_at': DateTime.now().toUtc().toIso8601String(),
})
.eq('id', requestId);
await _client.from('it_service_request_activity_logs').insert({
'request_id': requestId,
'actor_id': userId,
'action_type': 'approved',
});
}
// -----------------------------------------------------------------------
// Assignment management
// -----------------------------------------------------------------------
Future<void> assignStaff({
required String requestId,
required List<String> userIds,
}) async {
final actorId = _client.auth.currentUser?.id;
final rows = userIds
.map((uid) => {'request_id': requestId, 'user_id': uid})
.toList();
await _client
.from('it_service_request_assignments')
.upsert(rows, onConflict: 'request_id,user_id');
await _client.from('it_service_request_activity_logs').insert({
'request_id': requestId,
'actor_id': actorId,
'action_type': 'assigned',
'meta': {'user_ids': userIds},
});
}
Future<void> unassignStaff({
required String requestId,
required String userId,
}) async {
final actorId = _client.auth.currentUser?.id;
await _client
.from('it_service_request_assignments')
.delete()
.eq('request_id', requestId)
.eq('user_id', userId);
await _client.from('it_service_request_activity_logs').insert({
'request_id': requestId,
'actor_id': actorId,
'action_type': 'unassigned',
'meta': {'user_id': userId},
});
}
// -----------------------------------------------------------------------
// Action Taken
// -----------------------------------------------------------------------
Future<String> createOrUpdateAction({
required String requestId,
required String actionTaken,
}) async {
final userId = _client.auth.currentUser?.id;
if (userId == null) throw Exception('Not authenticated');
// Check if action already exists for this user
final existing = await _client
.from('it_service_request_actions')
.select('id')
.eq('request_id', requestId)
.eq('user_id', userId)
.maybeSingle();
if (existing != null) {
await _client
.from('it_service_request_actions')
.update({'action_taken': actionTaken})
.eq('id', existing['id']);
return existing['id'] as String;
} else {
final result = await _client
.from('it_service_request_actions')
.insert({
'request_id': requestId,
'user_id': userId,
'action_taken': actionTaken,
})
.select('id')
.single();
return result['id'] as String;
}
}
// -----------------------------------------------------------------------
// Evidence Attachments
// -----------------------------------------------------------------------
Future<String> uploadEvidence({
required String requestId,
required String actionId,
required String fileName,
required Uint8List bytes,
DateTime? takenAt,
}) async {
final userId = _client.auth.currentUser?.id;
if (userId == null) throw Exception('Not authenticated');
final path = '$requestId/evidence/$fileName';
if (kIsWeb) {
await _client.storage
.from('it_service_attachments')
.uploadBinary(
path,
bytes,
fileOptions: const FileOptions(upsert: true),
);
} else {
final tmpDir = Directory.systemTemp;
final tmpFile = File('${tmpDir.path}/$fileName');
await tmpFile.writeAsBytes(bytes);
await _client.storage
.from('it_service_attachments')
.upload(path, tmpFile, fileOptions: const FileOptions(upsert: true));
try {
await tmpFile.delete();
} catch (_) {}
}
await _client.from('it_service_request_evidence').insert({
'request_id': requestId,
'action_id': actionId,
'user_id': userId,
'file_path': path,
'file_name': fileName,
'taken_at': takenAt?.toIso8601String(),
});
return _client.storage.from('it_service_attachments').getPublicUrl(path);
}
Future<void> deleteEvidence({required String evidenceId}) async {
// Get path first
final row = await _client
.from('it_service_request_evidence')
.select('file_path')
.eq('id', evidenceId)
.single();
final path = row['file_path'] as String;
await _client.storage.from('it_service_attachments').remove([path]);
await _client
.from('it_service_request_evidence')
.delete()
.eq('id', evidenceId);
}
// -----------------------------------------------------------------------
// File Attachments (event files, max 25MB)
// -----------------------------------------------------------------------
Future<String> uploadAttachment({
required String requestId,
required String fileName,
required Uint8List bytes,
}) async {
if (bytes.length > 25 * 1024 * 1024) {
throw Exception('File size exceeds 25MB limit');
}
final path = '$requestId/attachments/$fileName';
if (kIsWeb) {
await _client.storage
.from('it_service_attachments')
.uploadBinary(
path,
bytes,
fileOptions: const FileOptions(upsert: true),
);
} else {
final tmpDir = Directory.systemTemp;
final tmpFile = File('${tmpDir.path}/$fileName');
await tmpFile.writeAsBytes(bytes);
await _client.storage
.from('it_service_attachments')
.upload(path, tmpFile, fileOptions: const FileOptions(upsert: true));
try {
await tmpFile.delete();
} catch (_) {}
}
return _client.storage.from('it_service_attachments').getPublicUrl(path);
}
Future<List<Map<String, dynamic>>> listAttachments(String requestId) async {
try {
final files = await _client.storage
.from('it_service_attachments')
.list(path: '$requestId/attachments');
return files
.map(
(f) => {
'name': f.name,
'url': _client.storage
.from('it_service_attachments')
.getPublicUrl('$requestId/attachments/${f.name}'),
},
)
.toList();
} catch (_) {
return [];
}
}
Future<void> deleteAttachment({
required String requestId,
required String fileName,
}) async {
final path = '$requestId/attachments/$fileName';
await _client.storage.from('it_service_attachments').remove([path]);
}
/// List evidence attachments for a request from the database.
Future<List<Map<String, dynamic>>> listEvidence(String requestId) async {
final rows = await _client
.from('it_service_request_evidence')
.select()
.eq('request_id', requestId)
.order('created_at', ascending: false);
return rows
.map(
(r) => {
'id': r['id'],
'file_name': r['file_name'],
'file_path': r['file_path'],
'taken_at': r['taken_at'],
'url': _client.storage
.from('it_service_attachments')
.getPublicUrl(r['file_path'] as String),
},
)
.toList();
}
}