330 lines
15 KiB
Dart
330 lines
15 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:lucide_icons/lucide_icons.dart';
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import 'package:intl/intl.dart';
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import '../providers/product_categories_provider.dart';
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import '../domain/category_rate_history.dart';
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class DailyRatesScreen extends ConsumerStatefulWidget {
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const DailyRatesScreen({super.key});
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@override
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ConsumerState<DailyRatesScreen> createState() => _DailyRatesScreenState();
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}
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class _DailyRatesScreenState extends ConsumerState<DailyRatesScreen> {
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final Map<int, TextEditingController> _rateControllers = {};
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final Map<int, bool> _isExpanded = {};
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final Map<int, List<CategoryRateHistory>> _historyCache = {};
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final Map<int, bool> _isLoadingHistory = {};
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@override
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void dispose() {
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for (var controller in _rateControllers.values) {
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controller.dispose();
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}
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super.dispose();
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}
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Future<void> _fetchHistory(int categoryId) async {
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setState(() => _isLoadingHistory[categoryId] = true);
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final historyData = await ref.read(productCategoriesProvider.notifier).fetchRateHistory(categoryId);
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setState(() {
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_historyCache[categoryId] = historyData.map((e) => CategoryRateHistory.fromJson(e)).toList();
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_isLoadingHistory[categoryId] = false;
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});
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}
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void _toggleExpand(int categoryId) {
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setState(() {
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_isExpanded[categoryId] = !(_isExpanded[categoryId] ?? false);
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});
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if (_isExpanded[categoryId] == true && _historyCache[categoryId] == null) {
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_fetchHistory(categoryId);
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}
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}
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Future<void> _saveRate(int categoryId) async {
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final text = _rateControllers[categoryId]?.text;
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if (text == null || text.isEmpty) return;
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final rate = double.tryParse(text);
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if (rate == null) return;
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try {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (_) => const Center(child: CircularProgressIndicator()),
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);
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await ref.read(productCategoriesProvider.notifier).updateCategoryRate(categoryId, rate);
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if (mounted) {
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Navigator.pop(context); // close loading
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Rate updated successfully!'), backgroundColor: Colors.green),
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);
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_fetchHistory(categoryId); // refresh history
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}
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} catch (e) {
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if (mounted) {
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Navigator.pop(context);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Error updating rate: $e'), backgroundColor: Colors.red),
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);
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}
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}
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}
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Future<void> _syncRates(int categoryId) async {
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try {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (_) => const Center(child: CircularProgressIndicator()),
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);
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final count = await ref.read(productCategoriesProvider.notifier).syncRates(categoryId);
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if (mounted) {
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Navigator.pop(context); // close loading
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Successfully synced rates for $count products!'), backgroundColor: Colors.green),
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);
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}
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} catch (e) {
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if (mounted) {
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Navigator.pop(context);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Error syncing rates: $e'), backgroundColor: Colors.red),
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);
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}
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}
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}
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@override
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Widget build(BuildContext context) {
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final categoriesState = ref.watch(productCategoriesProvider);
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return Scaffold(
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backgroundColor: Colors.grey[50],
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appBar: AppBar(
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title: const Text('Daily Commodity Rates', style: TextStyle(fontWeight: FontWeight.bold, fontSize: 20)),
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backgroundColor: Colors.white,
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foregroundColor: Colors.black,
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elevation: 0,
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centerTitle: true,
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),
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body: categoriesState.when(
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data: (categories) {
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final commodities = categories.where((c) => c.isCommodity).toList();
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if (commodities.isEmpty) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(LucideIcons.boxes, size: 64, color: Colors.grey.shade300),
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const SizedBox(height: 16),
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Text('No Commodity Categories', style: TextStyle(fontSize: 18, color: Colors.grey.shade600)),
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const SizedBox(height: 8),
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Text('Mark a category as a commodity to manage its daily rates.', style: TextStyle(color: Colors.grey.shade500)),
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],
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),
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);
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}
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return RefreshIndicator(
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onRefresh: () async {
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ref.invalidate(productCategoriesProvider);
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await ref.read(productCategoriesProvider.future);
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},
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child: ListView.builder(
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padding: const EdgeInsets.all(16),
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itemCount: commodities.length,
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itemBuilder: (context, index) {
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final category = commodities[index];
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if (!_rateControllers.containsKey(category.id)) {
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_rateControllers[category.id!] = TextEditingController(text: category.dailyRate?.toString() ?? '');
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}
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final controller = _rateControllers[category.id]!;
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final isExpanded = _isExpanded[category.id] ?? false;
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final history = _historyCache[category.id];
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final isLoadingHistory = _isLoadingHistory[category.id] ?? false;
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DateTime? lastSyncDate;
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if (history != null && history.isNotEmpty) {
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lastSyncDate = history.first.updatedAt;
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}
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return Container(
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margin: const EdgeInsets.only(bottom: 16),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(color: Colors.grey.withOpacity(0.05), blurRadius: 10, offset: const Offset(0, 4)),
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],
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border: Border.all(color: Colors.grey.shade200),
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),
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child: Column(
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children: [
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// Main Card Header
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Padding(
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padding: const EdgeInsets.all(20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Row(
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children: [
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Container(
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padding: const EdgeInsets.all(10),
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decoration: BoxDecoration(
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color: Colors.blue.shade50,
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borderRadius: BorderRadius.circular(12),
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),
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child: Icon(LucideIcons.trendingUp, color: Colors.blue.shade700, size: 24),
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),
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const SizedBox(width: 16),
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Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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category.name,
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style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 4),
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if (lastSyncDate != null)
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Text(
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'Last updated: ${DateFormat('MMM dd, yyyy HH:mm').format(lastSyncDate)}',
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style: TextStyle(fontSize: 12, color: Colors.grey.shade500),
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)
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else
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Text(
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'Base Unit: ${category.baseUnit}',
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style: TextStyle(fontSize: 12, color: Colors.grey.shade500),
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),
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],
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),
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],
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),
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IconButton(
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icon: Icon(isExpanded ? LucideIcons.chevronUp : LucideIcons.history, color: Colors.grey.shade600),
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onPressed: () => _toggleExpand(category.id!),
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tooltip: 'View History',
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),
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],
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),
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const SizedBox(height: 24),
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Row(
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children: [
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Expanded(
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flex: 3,
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child: TextFormField(
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controller: controller,
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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decoration: InputDecoration(
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labelText: 'Today\'s Rate (per ${category.baseUnit})',
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prefixText: '₹ ',
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border: OutlineInputBorder(borderRadius: BorderRadius.circular(12)),
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contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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),
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),
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),
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const SizedBox(width: 12),
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Expanded(
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flex: 2,
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child: ElevatedButton.icon(
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onPressed: () => _saveRate(category.id!),
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icon: const Icon(LucideIcons.save, size: 18),
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label: const Text('Save'),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.blue.shade700,
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(vertical: 14),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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),
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),
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),
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],
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),
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const SizedBox(height: 16),
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SizedBox(
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width: double.infinity,
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child: OutlinedButton.icon(
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onPressed: () => _syncRates(category.id!),
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icon: Icon(LucideIcons.refreshCw, size: 18, color: Colors.blue.shade700),
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label: const Text('Sync Rate to All Products', style: TextStyle(fontWeight: FontWeight.bold)),
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style: OutlinedButton.styleFrom(
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foregroundColor: Colors.blue.shade700,
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side: BorderSide(color: Colors.blue.shade700),
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padding: const EdgeInsets.symmetric(vertical: 14),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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),
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),
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),
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],
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),
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),
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// Expandable History Section
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if (isExpanded)
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Container(
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decoration: BoxDecoration(
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color: Colors.grey.shade50,
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borderRadius: const BorderRadius.vertical(bottom: Radius.circular(16)),
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border: Border(top: BorderSide(color: Colors.grey.shade200)),
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),
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padding: const EdgeInsets.all(20),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text('Rate History', style: TextStyle(fontWeight: FontWeight.bold, fontSize: 14)),
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const SizedBox(height: 12),
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if (isLoadingHistory)
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const Center(child: Padding(padding: EdgeInsets.all(16), child: CircularProgressIndicator()))
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else if (history == null || history.isEmpty)
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const Padding(
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padding: EdgeInsets.all(16.0),
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child: Text('No history found.'),
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)
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else
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ListView.separated(
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shrinkWrap: true,
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physics: const NeverScrollableScrollPhysics(),
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itemCount: history.length > 5 ? 5 : history.length, // Show up to 5 recent
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separatorBuilder: (_, __) => Divider(color: Colors.grey.shade300),
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itemBuilder: (context, idx) {
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final item = history[idx];
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(DateFormat('MMM dd, yyyy').format(item.date), style: const TextStyle(fontWeight: FontWeight.w500)),
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Text('₹ ${item.rate.toStringAsFixed(2)}', style: const TextStyle(fontWeight: FontWeight.bold)),
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],
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),
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);
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},
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),
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],
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),
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),
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],
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),
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);
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},
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));
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},
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loading: () => const Center(child: CircularProgressIndicator()),
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error: (err, stack) => Center(child: Text('Error: $err')),
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),
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);
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}
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}
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