/// Custom App Bar Widget
///
/// Reusable app bar with consistent styling across the app
library;

import 'package:flutter/material.dart';
import '../../core/constants/ui_constants.dart';

/// Custom app bar with consistent styling
class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
  final String title;
  final List<Widget>? actions;
  final Widget? leading;
  final bool centerTitle;
  final Color? backgroundColor;
  final Color? foregroundColor;
  final double elevation;
  final PreferredSizeWidget? bottom;
  final bool automaticallyImplyLeading;

  const CustomAppBar({
    super.key,
    required this.title,
    this.actions,
    this.leading,
    this.centerTitle = true,
    this.backgroundColor,
    this.foregroundColor,
    this.elevation = AppElevation.none,
    this.bottom,
    this.automaticallyImplyLeading = true,
  });

  @override
  Widget build(BuildContext context) {
    return AppBar(
      title: Text(title),
      actions: actions,
      leading: leading,
      centerTitle: centerTitle,
      backgroundColor: backgroundColor,
      foregroundColor: foregroundColor,
      elevation: elevation,
      bottom: bottom,
      automaticallyImplyLeading: automaticallyImplyLeading,
    );
  }

  @override
  Size get preferredSize => Size.fromHeight(
        AppBarSpecs.height + (bottom?.preferredSize.height ?? 0),
      );
}

/// Transparent app bar for overlay scenarios
class TransparentAppBar extends StatelessWidget implements PreferredSizeWidget {
  final String? title;
  final List<Widget>? actions;
  final Widget? leading;
  final bool centerTitle;
  final Color? foregroundColor;

  const TransparentAppBar({
    super.key,
    this.title,
    this.actions,
    this.leading,
    this.centerTitle = true,
    this.foregroundColor,
  });

  @override
  Widget build(BuildContext context) {
    return AppBar(
      title: title != null ? Text(title!) : null,
      actions: actions,
      leading: leading,
      centerTitle: centerTitle,
      backgroundColor: Colors.transparent,
      foregroundColor: foregroundColor ?? Colors.white,
      elevation: 0,
    );
  }

  @override
  Size get preferredSize => const Size.fromHeight(AppBarSpecs.height);
}

/// Search app bar with search field
class SearchAppBar extends StatelessWidget implements PreferredSizeWidget {
  final String hintText;
  final ValueChanged<String>? onChanged;
  final ValueChanged<String>? onSubmitted;
  final VoidCallback? onClear;
  final TextEditingController? controller;
  final bool autofocus;
  final Widget? leading;

  const SearchAppBar({
    super.key,
    this.hintText = 'Tìm kiếm...',
    this.onChanged,
    this.onSubmitted,
    this.onClear,
    this.controller,
    this.autofocus = false,
    this.leading,
  });

  @override
  Widget build(BuildContext context) {
    return AppBar(
      leading: leading ??
          IconButton(
            icon: const Icon(Icons.arrow_back),
            onPressed: () => Navigator.of(context).pop(),
          ),
      title: TextField(
        controller: controller,
        autofocus: autofocus,
        onChanged: onChanged,
        onSubmitted: onSubmitted,
        style: const TextStyle(color: Colors.white),
        decoration: InputDecoration(
          hintText: hintText,
          hintStyle: TextStyle(color: Colors.white.withOpacity(0.7)),
          border: InputBorder.none,
          suffixIcon: controller?.text.isNotEmpty ?? false
              ? IconButton(
                  icon: const Icon(Icons.clear, color: Colors.white),
                  onPressed: () {
                    controller?.clear();
                    onClear?.call();
                  },
                )
              : null,
        ),
      ),
      elevation: AppElevation.none,
    );
  }

  @override
  Size get preferredSize => const Size.fromHeight(AppBarSpecs.height);
}