621 lines
20 KiB
Dart
621 lines
20 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:syncfusion_flutter_charts/charts.dart';
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import 'package:marco/controller/dashboard/dashboard_controller.dart';
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import 'package:marco/helpers/widgets/my_text.dart';
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import 'package:marco/model/dashboard/expense_type_report_model.dart';
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import 'package:marco/helpers/utils/utils.dart';
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import 'package:marco/helpers/widgets/my_custom_skeleton.dart';
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class ExpenseTypeReportChart extends StatelessWidget {
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ExpenseTypeReportChart({Key? key}) : super(key: key);
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final DashboardController _controller = Get.find<DashboardController>();
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// Extended color palette for multiple projects
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static const List<Color> _flatColors = [
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Color(0xFFE57373), // Red 300
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Color(0xFF64B5F6), // Blue 300
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Color(0xFF81C784), // Green 300
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Color(0xFFFFB74D), // Orange 300
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Color(0xFFBA68C8), // Purple 300
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Color(0xFFFF8A65), // Deep Orange 300
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Color(0xFF4DB6AC), // Teal 300
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Color(0xFFA1887F), // Brown 400
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Color(0xFFDCE775), // Lime 300
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Color(0xFF9575CD), // Deep Purple 300
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Color(0xFF7986CB), // Indigo 300
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Color(0xFFAED581), // Light Green 300
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Color(0xFFFF7043), // Deep Orange 400
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Color(0xFF4FC3F7), // Light Blue 300
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Color(0xFFFFD54F), // Amber 300
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Color(0xFF90A4AE), // Blue Grey 300
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Color(0xFFE573BB), // Pink 300
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Color(0xFF81D4FA), // Light Blue 200
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Color(0xFFBCAAA4), // Brown 300
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Color(0xFFA5D6A7), // Green 300
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Color(0xFFCE93D8), // Purple 200
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Color(0xFFFF8A65), // Deep Orange 300 (repeat to fill)
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Color(0xFF80CBC4), // Teal 200
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Color(0xFFFFF176), // Yellow 300
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Color(0xFF90CAF9), // Blue 200
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Color(0xFFE0E0E0), // Grey 300
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Color(0xFFF48FB1), // Pink 200
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Color(0xFFA1887F), // Brown 400 (repeat)
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Color(0xFFB0BEC5), // Blue Grey 200
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Color(0xFF81C784), // Green 300 (repeat)
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Color(0xFFFFB74D), // Orange 300 (repeat)
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Color(0xFF64B5F6), // Blue 300 (repeat)
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];
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Color _getSeriesColor(int index) => _flatColors[index % _flatColors.length];
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@override
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Widget build(BuildContext context) {
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final screenWidth = MediaQuery.of(context).size.width;
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final isMobile = screenWidth < 600;
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return Obx(() {
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final isLoading = _controller.isExpenseTypeReportLoading.value;
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final data = _controller.expenseTypeReportData.value;
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return Container(
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(5),
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boxShadow: [
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BoxShadow(
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color: Colors.grey.withOpacity(0.05),
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blurRadius: 6,
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spreadRadius: 1,
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offset: const Offset(0, 2),
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),
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],
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),
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padding: EdgeInsets.symmetric(
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vertical: isMobile ? 16 : 20,
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horizontal: isMobile ? 12 : 20,
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Chart Header
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isLoading
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? SkeletonLoaders.dateSkeletonLoader()
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: _ChartHeader(controller: _controller),
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const SizedBox(height: 12),
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// Date Range Picker
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isLoading
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? Row(
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children: [
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Expanded(child: SkeletonLoaders.dateSkeletonLoader()),
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const SizedBox(width: 8),
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Expanded(child: SkeletonLoaders.dateSkeletonLoader()),
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],
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)
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: _DateRangePicker(controller: _controller),
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const SizedBox(height: 16),
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// Chart Area
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SizedBox(
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height: isMobile ? 350 : 400,
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child: isLoading
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? SkeletonLoaders.chartSkeletonLoader()
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: (data == null || data.report.isEmpty)
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? const _NoDataMessage()
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: _ExpenseDonutChart(
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data: data,
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getSeriesColor: _getSeriesColor,
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isMobile: isMobile,
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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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// Chart Header
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// -----------------------------------------------------------------------------
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class _ChartHeader extends StatelessWidget {
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const _ChartHeader({Key? key, required this.controller}) : super(key: key);
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final DashboardController controller;
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@override
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Widget build(BuildContext context) {
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return Row(
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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MyText.bodyMedium('Project Expense Analytics', fontWeight: 700),
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SizedBox(height: 2),
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MyText.bodySmall(
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'Approved expenses by project',
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color: Colors.grey,
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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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// Date Range Picker
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// -----------------------------------------------------------------------------
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class _DateRangePicker extends StatelessWidget {
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const _DateRangePicker({Key? key, required this.controller})
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: super(key: key);
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final DashboardController controller;
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Future<void> _selectDate(
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BuildContext context, bool isStartDate, DateTime currentDate) async {
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final DateTime? picked = await showDatePicker(
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context: context,
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initialDate: currentDate,
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firstDate: DateTime(2020),
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lastDate: DateTime.now(),
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builder: (context, child) {
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return Theme(
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data: Theme.of(context).copyWith(
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colorScheme: const ColorScheme.light(
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primary: Colors.blueAccent,
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onPrimary: Colors.white,
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onSurface: Colors.black,
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),
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),
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child: child!,
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);
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},
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);
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if (picked != null) {
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if (isStartDate) {
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controller.expenseReportStartDate.value = picked;
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} else {
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controller.expenseReportEndDate.value = picked;
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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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return Obx(() {
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final startDate = controller.expenseReportStartDate.value;
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final endDate = controller.expenseReportEndDate.value;
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return Row(
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children: [
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_DateBox(
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label: 'Start Date',
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date: startDate,
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onTap: () => _selectDate(context, true, startDate),
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icon: Icons.calendar_today_outlined,
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),
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const SizedBox(width: 8),
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_DateBox(
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label: 'End Date',
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date: endDate,
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onTap: () => _selectDate(context, false, endDate),
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icon: Icons.event_outlined,
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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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class _DateBox extends StatelessWidget {
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final String label;
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final DateTime date;
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final VoidCallback onTap;
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final IconData icon;
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const _DateBox({
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Key? key,
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required this.label,
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required this.date,
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required this.onTap,
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required this.icon,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Expanded(
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: onTap,
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borderRadius: BorderRadius.circular(5),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 8),
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decoration: BoxDecoration(
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color: Colors.blueAccent.withOpacity(0.08),
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border: Border.all(color: Colors.blueAccent.withOpacity(0.3)),
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borderRadius: BorderRadius.circular(5),
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),
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child: Row(
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children: [
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Container(
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padding: const EdgeInsets.all(6),
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decoration: BoxDecoration(
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color: Colors.blueAccent.withOpacity(0.15),
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borderRadius: BorderRadius.circular(4),
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),
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child: Icon(
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icon,
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size: 14,
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color: Colors.blueAccent,
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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label,
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style: TextStyle(
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fontSize: 10,
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color: Colors.grey.shade600,
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fontWeight: FontWeight.w500,
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),
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),
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const SizedBox(height: 2),
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Text(
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Utils.formatDate(date),
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style: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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color: Colors.blueAccent,
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),
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overflow: TextOverflow.ellipsis,
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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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// No Data Message
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// -----------------------------------------------------------------------------
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class _NoDataMessage extends StatelessWidget {
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const _NoDataMessage({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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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(Icons.donut_large_outlined,
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color: Colors.grey.shade400, size: 48),
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const SizedBox(height: 10),
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MyText.bodyMedium(
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'No expense data available for this range.',
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textAlign: TextAlign.center,
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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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}
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// -----------------------------------------------------------------------------
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// Donut Chart
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// -----------------------------------------------------------------------------
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class _ExpenseDonutChart extends StatefulWidget {
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const _ExpenseDonutChart({
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Key? key,
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required this.data,
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required this.getSeriesColor,
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required this.isMobile,
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}) : super(key: key);
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final ExpenseTypeReportData data;
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final Color Function(int index) getSeriesColor;
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final bool isMobile;
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@override
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State<_ExpenseDonutChart> createState() => _ExpenseDonutChartState();
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}
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class _ExpenseDonutChartState extends State<_ExpenseDonutChart> {
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late TooltipBehavior _tooltipBehavior;
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late SelectionBehavior _selectionBehavior;
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@override
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void initState() {
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super.initState();
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_tooltipBehavior = TooltipBehavior(
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enable: true,
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builder: (dynamic data, dynamic point, dynamic series, int pointIndex,
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int seriesIndex) {
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final total = widget.data.report
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.fold<double>(0, (sum, e) => sum + e.totalApprovedAmount);
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final value = data.value as double;
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final percentage = total > 0 ? (value / total * 100) : 0;
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
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decoration: BoxDecoration(
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color: Colors.blueAccent,
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borderRadius: BorderRadius.circular(4),
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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data.label,
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style: const TextStyle(
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color: Colors.white, fontWeight: FontWeight.w600),
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),
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const SizedBox(height: 2),
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Text(
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Utils.formatCurrency(value),
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style: const TextStyle(
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color: Colors.white, fontWeight: FontWeight.w600),
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),
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Text(
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'${percentage.toStringAsFixed(1)}%',
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style: const TextStyle(
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color: Colors.white70,
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fontWeight: FontWeight.w500,
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fontSize: 10),
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),
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],
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),
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);
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},
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elevation: 4,
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animationDuration: 300,
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);
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_selectionBehavior = SelectionBehavior(
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enable: true,
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selectedColor: Colors.white,
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selectedBorderColor: Colors.blueAccent,
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selectedBorderWidth: 3,
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unselectedOpacity: 0.5,
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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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// Create donut data from project items using totalApprovedAmount
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final List<_DonutData> donutData = widget.data.report
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.asMap()
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.entries
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.map((entry) => _DonutData(
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entry.value.projectName.isEmpty
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? 'Project ${entry.key + 1}'
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: entry.value.projectName,
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entry.value.totalApprovedAmount,
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widget.getSeriesColor(entry.key),
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Icons.folder_outlined,
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))
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.toList();
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// Filter out zero values for cleaner visualization
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final filteredData = donutData.where((data) => data.value > 0).toList();
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if (filteredData.isEmpty) {
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return const Center(
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child: Text(
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'No approved expense data for the selected range.',
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textAlign: TextAlign.center,
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style: TextStyle(fontSize: 14, color: Colors.grey),
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),
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);
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}
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// Calculate total for center display
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final total = filteredData.fold<double>(0, (sum, item) => sum + item.value);
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return Column(
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children: [
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Expanded(
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child: SfCircularChart(
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margin: EdgeInsets.zero,
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legend: Legend(
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isVisible: true,
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position: LegendPosition.bottom,
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overflowMode: LegendItemOverflowMode.wrap,
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textStyle: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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),
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iconHeight: 10,
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iconWidth: 10,
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itemPadding: widget.isMobile ? 12 : 20,
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padding: widget.isMobile ? 20 : 28,
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),
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tooltipBehavior: _tooltipBehavior,
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// Center annotation showing total approved amount
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annotations: <CircularChartAnnotation>[
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CircularChartAnnotation(
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widget: Container(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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Icons.check_circle_outline,
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color: Colors.green.shade600,
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size: widget.isMobile ? 28 : 32,
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),
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const SizedBox(height: 6),
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Text(
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'Total Approved',
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style: TextStyle(
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fontSize: widget.isMobile ? 11 : 12,
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color: Colors.grey.shade600,
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 4),
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Text(
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Utils.formatCurrency(total),
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style: TextStyle(
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fontSize: widget.isMobile ? 16 : 18,
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color: Colors.green.shade700,
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fontWeight: FontWeight.w700,
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),
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),
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const SizedBox(height: 2),
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Text(
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'${filteredData.length} ${filteredData.length == 1 ? 'Project' : 'Projects'}',
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style: TextStyle(
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fontSize: widget.isMobile ? 9 : 10,
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color: Colors.grey.shade500,
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fontWeight: FontWeight.w500,
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),
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),
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],
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),
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),
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),
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],
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series: <DoughnutSeries<_DonutData, String>>[
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DoughnutSeries<_DonutData, String>(
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dataSource: filteredData,
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xValueMapper: (datum, _) => datum.label,
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yValueMapper: (datum, _) => datum.value,
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pointColorMapper: (datum, _) => datum.color,
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dataLabelMapper: (datum, _) {
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final amount = Utils.formatCurrency(datum.value);
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return widget.isMobile
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? '$amount'
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: '${datum.label}\n$amount';
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},
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dataLabelSettings: DataLabelSettings(
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isVisible: true,
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labelPosition: ChartDataLabelPosition.outside,
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connectorLineSettings: ConnectorLineSettings(
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type: ConnectorType.curve,
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length: widget.isMobile ? '15%' : '18%',
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width: 1.5,
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color: Colors.grey.shade400,
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),
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textStyle: TextStyle(
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fontSize: widget.isMobile ? 10 : 11,
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fontWeight: FontWeight.w700,
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color: Colors.black87,
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),
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labelIntersectAction: LabelIntersectAction.shift,
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),
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innerRadius: widget.isMobile ? '65%' : '70%',
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radius: widget.isMobile ? '75%' : '80%',
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explode: true,
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explodeAll: false,
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explodeIndex: 0,
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explodeOffset: '5%',
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explodeGesture: ActivationMode.singleTap,
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startAngle: 90,
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endAngle: 450,
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strokeColor: Colors.white,
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strokeWidth: 2.5,
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enableTooltip: true,
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animationDuration: 1000,
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selectionBehavior: _selectionBehavior,
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opacity: 0.95,
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),
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],
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),
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),
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if (!widget.isMobile) ...[
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const SizedBox(height: 12),
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_ProjectSummary(donutData: filteredData),
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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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// Project Summary (Desktop only)
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// -----------------------------------------------------------------------------
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|
class _ProjectSummary extends StatelessWidget {
|
|
const _ProjectSummary({Key? key, required this.donutData}) : super(key: key);
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|
|
final List<_DonutData> donutData;
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|
|
@override
|
|
Widget build(BuildContext context) {
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return Wrap(
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spacing: 8,
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runSpacing: 8,
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alignment: WrapAlignment.center,
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children: donutData.map((data) {
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|
return Container(
|
|
constraints: const BoxConstraints(minWidth: 120),
|
|
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
|
|
decoration: BoxDecoration(
|
|
color: data.color.withOpacity(0.15),
|
|
borderRadius: BorderRadius.circular(5),
|
|
border: Border.all(
|
|
color: data.color.withOpacity(0.4),
|
|
width: 1,
|
|
),
|
|
),
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
Icon(data.icon, color: data.color, size: 18),
|
|
const SizedBox(height: 4),
|
|
Text(
|
|
data.label,
|
|
style: TextStyle(
|
|
fontSize: 11,
|
|
color: Colors.grey.shade700,
|
|
fontWeight: FontWeight.w600,
|
|
),
|
|
textAlign: TextAlign.center,
|
|
maxLines: 2,
|
|
overflow: TextOverflow.ellipsis,
|
|
),
|
|
const SizedBox(height: 2),
|
|
Text(
|
|
Utils.formatCurrency(data.value),
|
|
style: TextStyle(
|
|
fontSize: 12,
|
|
color: data.color,
|
|
fontWeight: FontWeight.w700,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}).toList(),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _DonutData {
|
|
final String label;
|
|
final double value;
|
|
final Color color;
|
|
final IconData icon;
|
|
|
|
_DonutData(this.label, this.value, this.color, this.icon);
|
|
}
|