447 lines
13 KiB
Dart
447 lines
13 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:lucide_icons_flutter/lucide_icons.dart';
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import 'package:provider/provider.dart';
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import '../../../core/network/api_response.dart';
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import '../../../core/theme/app_theme.dart';
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import '../../../core/theme/app_spacing.dart';
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import '../../../core/utils/toast_utils.dart';
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import '../../../providers/asset_provider.dart';
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import '../../components/material_input.dart';
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/// 提现页面
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class WithdrawPage extends StatefulWidget {
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final String? balance;
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const WithdrawPage({super.key, this.balance});
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@override
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State<WithdrawPage> createState() => _WithdrawPageState();
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}
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class _WithdrawPageState extends State<WithdrawPage> {
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final _amountController = TextEditingController();
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final _addressController = TextEditingController();
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final _contactController = TextEditingController();
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final _amountFocus = FocusNode();
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bool _isSubmitting = false;
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List<String> _networks = [];
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String? _selectedNetwork;
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@override
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void initState() {
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super.initState();
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_amountController.addListener(() => setState(() {}));
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_loadNetworks();
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}
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@override
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void dispose() {
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_amountController.dispose();
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_addressController.dispose();
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_contactController.dispose();
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_amountFocus.dispose();
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super.dispose();
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}
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// ============================================
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// 业务逻辑
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// ============================================
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void _loadNetworks() {
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context.read<AssetProvider>().getWalletNetworks().then((list) {
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if (mounted) {
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setState(() {
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_networks = list;
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if (list.isNotEmpty) _selectedNetwork = list.first;
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});
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}
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});
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}
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String get _feeText {
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final amount = double.tryParse(_amountController.text) ?? 0;
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if (amount > 0) {
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final fee = amount * 0.1;
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final receivable = amount - fee;
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return '手續費(10%): -${fee.toStringAsFixed(2)} USDT | 應收款: ${receivable.toStringAsFixed(2)} USDT';
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}
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return '提現將扣除 10% 手續費';
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}
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Future<void> _submitWithdraw() async {
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final amount = double.tryParse(_amountController.text);
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if (amount == null || amount <= 0) {
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ToastUtils.showError('請輸入有效金額');
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return;
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}
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final address = _addressController.text.trim();
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if (address.isEmpty) {
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ToastUtils.showError('請輸入提現地址');
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return;
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}
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if (_isSubmitting) return;
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// 45天规则检查
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try {
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final checkResult = await context.read<AssetProvider>().withdrawCheck();
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if (checkResult != null && checkResult['isWithin45Days'] == true) {
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if (!mounted) return;
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final days = checkResult['depositDays'] ?? 0;
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final confirmed = await showDialog<bool>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('本金未滿45天提示'),
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content: Text('您的充值本金尚未滿45天（已$days天）。'
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'本金部分提現可能受到限制，是否繼續？'),
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actions: [
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TextButton(onPressed: () => Navigator.pop(ctx, false), child: const Text('取消')),
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TextButton(onPressed: () => Navigator.pop(ctx, true), child: const Text('確認提現')),
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],
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),
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);
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if (confirmed != true) return;
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}
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} catch (_) {}
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setState(() => _isSubmitting = true);
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try {
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final response = await context.read<AssetProvider>().withdraw(
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amount: _amountController.text,
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withdrawAddress: address,
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withdrawContact: _contactController.text.trim().isNotEmpty
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? _contactController.text.trim()
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: null,
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network: _selectedNetwork,
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);
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if (!mounted) return;
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if (response.success) {
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ToastUtils.showSuccess('申請成功，請等待管理員審批');
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Navigator.of(context).pop(true);
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} else {
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ToastUtils.showError(response.message ?? '申請失敗');
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}
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} catch (e) {
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if (mounted) ToastUtils.showError('申請失敗: $e');
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} finally {
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if (mounted) setState(() => _isSubmitting = false);
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}
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}
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// ============================================
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// 构建 UI
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// ============================================
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@override
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Widget build(BuildContext context) {
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final colorScheme = Theme.of(context).colorScheme;
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return Scaffold(
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backgroundColor: colorScheme.surface,
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appBar: AppBar(
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leading: IconButton(
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icon: Icon(LucideIcons.arrowLeft,
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color: colorScheme.onSurface, size: 20),
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onPressed: () => Navigator.of(context).pop(),
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),
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title: Text(
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'提現',
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style: AppTextStyles.headlineLarge(context).copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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backgroundColor: Colors.transparent,
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elevation: 0,
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scrolledUnderElevation: 0,
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centerTitle: true,
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.fromLTRB(
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AppSpacing.md, AppSpacing.xs, AppSpacing.md, AppSpacing.xl),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 可用余额
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if (widget.balance != null) ...[
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_buildBalanceRow(colorScheme),
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const SizedBox(height: AppSpacing.lg),
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],
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// 提现金额
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_buildAmountInput(colorScheme),
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const SizedBox(height: AppSpacing.sm),
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// 手续费提示
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_buildFeeTip(colorScheme),
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const SizedBox(height: AppSpacing.lg),
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// 提现网络
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if (_networks.isNotEmpty) ...[
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_buildSectionLabel(colorScheme, '提現網絡'),
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const SizedBox(height: AppSpacing.sm),
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_buildNetworkSelector(colorScheme),
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const SizedBox(height: AppSpacing.lg),
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],
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// 目标地址
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_buildAddressInput(colorScheme),
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const SizedBox(height: AppSpacing.lg),
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// 联系方式
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_buildContactInput(colorScheme),
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const SizedBox(height: AppSpacing.xl),
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// 安全提示
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_buildSecurityTips(colorScheme),
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const SizedBox(height: AppSpacing.xl),
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// 提交按钮
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_buildSubmitButton(colorScheme),
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const SizedBox(height: AppSpacing.md),
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_buildBottomTip(colorScheme),
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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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// 组件
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// ============================================
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Widget _buildBalanceRow(ColorScheme colorScheme) {
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return Container(
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width: double.infinity,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
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decoration: BoxDecoration(
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color: colorScheme.surface,
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borderRadius: BorderRadius.circular(14),
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border: Border.all(
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color: colorScheme.outlineVariant.withValues(alpha: 0.5),
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width: 1,
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),
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),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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'可用餘額',
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style: AppTextStyles.bodyMedium(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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),
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),
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Text(
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'${widget.balance} USDT',
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style: AppTextStyles.bodyMedium(context).copyWith(
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fontWeight: FontWeight.w600,
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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 _buildSectionLabel(ColorScheme colorScheme, String text) {
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return Text(
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text,
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style: AppTextStyles.bodyMedium(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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fontWeight: FontWeight.w500,
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),
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);
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}
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Widget _buildAmountInput(ColorScheme colorScheme) {
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return MaterialInput(
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controller: _amountController,
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focusNode: _amountFocus,
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labelText: '提現金額',
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hintText: '0.00',
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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inputFormatters: [
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FilteringTextInputFormatter.allow(RegExp(r'^\d*\.?\d{0,8}')),
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],
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suffixIcon: Padding(
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padding: const EdgeInsets.only(right: AppSpacing.md),
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child: Text(
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'USDT',
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style: AppTextStyles.bodyMedium(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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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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Widget _buildFeeTip(ColorScheme colorScheme) {
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: 4),
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child: Row(
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children: [
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Icon(LucideIcons.info,
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size: 13, color: colorScheme.onSurfaceVariant),
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const SizedBox(width: 6),
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Expanded(
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child: Text(
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_feeText,
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style: AppTextStyles.bodySmall(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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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 _buildNetworkSelector(ColorScheme colorScheme) {
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return Container(
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width: double.infinity,
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height: 48,
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padding: const EdgeInsets.symmetric(horizontal: 16),
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decoration: BoxDecoration(
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color: colorScheme.surface,
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borderRadius: BorderRadius.circular(14),
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border: Border.all(
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color: colorScheme.outlineVariant.withValues(alpha: 0.5),
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width: 1,
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),
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),
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child: DropdownButtonHideUnderline(
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child: DropdownButton<String>(
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value: _selectedNetwork,
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isExpanded: true,
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hint: Text(
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'選擇提現網絡',
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style: AppTextStyles.bodyMedium(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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),
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),
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items: _networks
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.map((n) => DropdownMenuItem(
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value: n,
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child: Text(n),
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))
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.toList(),
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onChanged: (value) {
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if (value != null) setState(() => _selectedNetwork = value);
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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 _buildAddressInput(ColorScheme colorScheme) {
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return MaterialInput(
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controller: _addressController,
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labelText: '目標地址',
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hintText: '請輸入提現地址',
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);
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}
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Widget _buildContactInput(ColorScheme colorScheme) {
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return MaterialInput(
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controller: _contactController,
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labelText: '聯繫方式（可選）',
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hintText: '方便客服與您聯繫',
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);
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}
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Widget _buildSecurityTips(ColorScheme colorScheme) {
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final tips = [
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'請仔細核對提現地址，地址錯誤將導致資產無法找回',
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'提現申請提交後需等待管理員審批',
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'提現將扣除 10% 手續費',
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];
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: tips
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.map((t) => Padding(
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padding: const EdgeInsets.only(bottom: 6),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'• ',
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style: AppTextStyles.bodySmall(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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),
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),
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Expanded(
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child: Text(
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t,
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style: AppTextStyles.bodySmall(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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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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.toList(),
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);
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}
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Widget _buildSubmitButton(ColorScheme colorScheme) {
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return SizedBox(
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width: double.infinity,
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height: 48,
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child: ElevatedButton(
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onPressed: _isSubmitting ? null : _submitWithdraw,
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style: ElevatedButton.styleFrom(
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backgroundColor: colorScheme.onSurface,
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foregroundColor: colorScheme.surface,
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disabledBackgroundColor: colorScheme.surfaceContainerHighest,
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disabledForegroundColor: colorScheme.onSurfaceVariant,
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elevation: 0,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(14),
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),
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),
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child: _isSubmitting
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? SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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valueColor: AlwaysStoppedAnimation<Color>(
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colorScheme.onSurfaceVariant,
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),
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),
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)
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: Text(
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'提交申請',
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style: TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w600,
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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 _buildBottomTip(ColorScheme colorScheme) {
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return Center(
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(LucideIcons.shieldCheck,
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size: 13, color: colorScheme.onSurfaceVariant),
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const SizedBox(width: 4),
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Text(
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'資金安全由平台全程保障',
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style: AppTextStyles.bodySmall(context).copyWith(
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color: colorScheme.onSurfaceVariant,
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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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