jiu/client/lib/widgets/page_scaffold.dart

import 'package:flutter/material.dart';
import '../core/theme/app_theme.dart';

class PageScaffold extends StatefulWidget {
  final String title;
  final List<Widget> tabs;
  final List<Widget> tabViews;
  final int initialTab;
  final ValueChanged<int>? onTabChanged;

  const PageScaffold({
    super.key,
    required this.title,
    required this.tabs,
    required this.tabViews,
    this.initialTab = 0,
    this.onTabChanged,
  });

  @override
  State<PageScaffold> createState() => _PageScaffoldState();
}

class _PageScaffoldState extends State<PageScaffold>
    with SingleTickerProviderStateMixin {
  late TabController _controller;

  @override
  void initState() {
    super.initState();
    _controller = TabController(
      length: widget.tabs.length,
      initialIndex: widget.initialTab.clamp(0, widget.tabs.length - 1),
      vsync: this,
    );
    if (widget.onTabChanged != null) {
      _controller.addListener(() {
        if (!_controller.indexIsChanging) {
          widget.onTabChanged!(_controller.index);
        }
      });
    }
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Container(
          color: AppTheme.surface,
          child: TabBar(
            controller: _controller,
            isScrollable: true,
            tabAlignment: TabAlignment.start,
            labelColor: AppTheme.primary,
            unselectedLabelColor: AppTheme.textSecondary,
            indicatorColor: AppTheme.primary,
            indicatorWeight: 2,
            labelStyle:
                const TextStyle(fontSize: 14, fontWeight: FontWeight.w500),
            tabs: widget.tabs,
          ),
        ),
        const Divider(height: 1),
        Expanded(
          child: TabBarView(
            controller: _controller,
            children: widget.tabViews,
          ),
        ),
      ],
    );
  }
}