371 lines
12 KiB
Dart
371 lines
12 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/constants/app_colors.dart';
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import '../../../core/utils/format_utils.dart';
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import '../../providers/mining_providers.dart';
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import '../../providers/user_providers.dart';
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import '../../providers/trading_providers.dart';
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class TradingPage extends ConsumerWidget {
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const TradingPage({super.key});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final globalState = ref.watch(globalStateProvider);
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final user = ref.watch(userNotifierProvider);
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final accountSequence = user.accountSequence ?? '';
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final accountAsync = ref.watch(shareAccountProvider(accountSequence));
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return Scaffold(
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appBar: AppBar(
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title: const Text('兑换'),
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backgroundColor: AppColors.primary,
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foregroundColor: Colors.white,
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 价格卡片
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globalState.when(
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data: (state) {
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if (state == null) return const SizedBox.shrink();
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return _buildPriceCard(state);
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},
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loading: () => const Card(
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child: Padding(
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padding: EdgeInsets.all(32),
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child: Center(child: CircularProgressIndicator()),
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),
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),
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error: (_, __) => const Card(
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child: Padding(
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padding: EdgeInsets.all(32),
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child: Center(child: Text('加载失败')),
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),
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),
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),
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const SizedBox(height: 24),
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// 账户余额
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const Text(
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'账户余额',
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style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 12),
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accountAsync.when(
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data: (account) {
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if (account == null) return const SizedBox.shrink();
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return _buildBalanceCard(account);
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},
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loading: () => const Card(
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child: Padding(
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padding: EdgeInsets.all(32),
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child: Center(child: CircularProgressIndicator()),
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),
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),
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error: (_, __) => const Card(
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child: Padding(
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padding: EdgeInsets.all(32),
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child: Center(child: Text('加载失败')),
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),
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),
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),
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const SizedBox(height: 24),
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// 买卖按钮
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Row(
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children: [
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Expanded(
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child: ElevatedButton(
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style: ElevatedButton.styleFrom(
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backgroundColor: AppColors.up,
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padding: const EdgeInsets.symmetric(vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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onPressed: () => _showBuyDialog(context, ref, accountSequence),
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child: const Text(
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'买入',
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style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
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),
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),
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),
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const SizedBox(width: 16),
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Expanded(
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child: ElevatedButton(
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style: ElevatedButton.styleFrom(
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backgroundColor: AppColors.down,
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padding: const EdgeInsets.symmetric(vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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onPressed: () => _showSellDialog(context, ref, accountSequence),
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child: const Text(
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'卖出',
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style: TextStyle(fontSize: 16, 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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const SizedBox(height: 24),
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// 交易说明
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Card(
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'交易说明',
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style: TextStyle(fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 12),
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_buildInfoRow('买入', '使用绿积分购买积分股'),
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_buildInfoRow('卖出', '出售积分股获得绿积分'),
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_buildInfoRow('划转', '需先将挖矿账户余额划转到交易账户'),
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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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Widget _buildPriceCard(state) {
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final isPriceUp = state.isPriceUp;
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return Card(
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child: Padding(
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padding: const EdgeInsets.all(20),
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child: Column(
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children: [
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const Text(
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'当前价格',
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style: TextStyle(color: AppColors.textSecondary, fontSize: 14),
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),
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const SizedBox(height: 8),
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Text(
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formatPrice(state.currentPrice),
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style: TextStyle(
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fontSize: 32,
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fontWeight: FontWeight.bold,
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color: isPriceUp ? AppColors.up : AppColors.down,
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),
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),
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const SizedBox(height: 4),
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
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decoration: BoxDecoration(
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color: (isPriceUp ? AppColors.up : AppColors.down).withOpacity(0.1),
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borderRadius: BorderRadius.circular(20),
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),
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child: Text(
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'${isPriceUp ? '+' : ''}${formatPercent(state.priceChange24h)} 24h',
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style: TextStyle(
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color: isPriceUp ? AppColors.up : AppColors.down,
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fontSize: 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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);
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}
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Widget _buildBalanceCard(account) {
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return Card(
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Row(
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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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const Text(
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'挖矿账户',
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style: TextStyle(color: AppColors.textSecondary, fontSize: 12),
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),
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const SizedBox(height: 4),
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Text(
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formatAmount(account.miningBalance),
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style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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],
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),
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),
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Container(
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width: 1,
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height: 40,
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color: AppColors.border,
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),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.only(left: 16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'交易账户',
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style: TextStyle(color: AppColors.textSecondary, fontSize: 12),
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),
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const SizedBox(height: 4),
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Text(
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formatAmount(account.tradingBalance),
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style: const TextStyle(fontSize: 18, 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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Widget _buildInfoRow(String title, String description) {
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return Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Container(
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width: 6,
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height: 6,
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margin: const EdgeInsets.only(top: 6),
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decoration: const BoxDecoration(
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color: AppColors.primary,
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shape: BoxShape.circle,
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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: RichText(
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text: TextSpan(
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style: const TextStyle(color: AppColors.textSecondary, fontSize: 13),
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children: [
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TextSpan(
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text: '$title: ',
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style: const TextStyle(fontWeight: FontWeight.w500),
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),
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TextSpan(text: description),
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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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void _showBuyDialog(BuildContext context, WidgetRef ref, String accountSequence) {
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final controller = TextEditingController();
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('买入积分股'),
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content: TextField(
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controller: controller,
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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decoration: const InputDecoration(
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labelText: '买入数量',
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hintText: '请输入买入数量',
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suffixText: '股',
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),
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(context),
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child: const Text('取消'),
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),
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ElevatedButton(
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onPressed: () async {
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if (controller.text.isNotEmpty) {
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final success = await ref
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.read(tradingNotifierProvider.notifier)
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.buyShares(accountSequence, controller.text);
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if (context.mounted) {
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Navigator.pop(context);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(success ? '买入订单已提交' : '买入失败'),
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backgroundColor: success ? AppColors.up : AppColors.error,
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),
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);
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if (success) {
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ref.invalidate(shareAccountProvider(accountSequence));
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}
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}
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}
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},
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style: ElevatedButton.styleFrom(backgroundColor: AppColors.up),
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child: const Text('确认买入'),
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),
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],
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),
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);
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}
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void _showSellDialog(BuildContext context, WidgetRef ref, String accountSequence) {
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final controller = TextEditingController();
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: const Text('卖出积分股'),
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content: TextField(
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controller: controller,
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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decoration: const InputDecoration(
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labelText: '卖出数量',
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hintText: '请输入卖出数量',
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suffixText: '股',
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),
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(context),
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child: const Text('取消'),
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),
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ElevatedButton(
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onPressed: () async {
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if (controller.text.isNotEmpty) {
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final success = await ref
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.read(tradingNotifierProvider.notifier)
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.sellShares(accountSequence, controller.text);
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if (context.mounted) {
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Navigator.pop(context);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(success ? '卖出订单已提交' : '卖出失败'),
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backgroundColor: success ? AppColors.down : AppColors.error,
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),
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);
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if (success) {
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ref.invalidate(shareAccountProvider(accountSequence));
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}
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}
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}
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},
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style: ElevatedButton.styleFrom(backgroundColor: AppColors.down),
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child: const Text('确认卖出'),
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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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