import 'package:flutter/material.dart';
import 'package:flutter_lucide/flutter_lucide.dart';
import 'package:marco/helpers/utils/mixins/ui_mixin.dart';
import 'package:marco/images.dart';
import 'package:marco/view/auth/email_login_form.dart';
import 'package:marco/view/auth/otp_login_form.dart';
import 'package:marco/helpers/services/api_endpoints.dart';
import 'package:marco/helpers/widgets/my_text.dart'; // Make sure this import is added

enum LoginOption { email, otp }

class LoginOptionScreen extends StatefulWidget {
  const LoginOptionScreen({super.key});

  @override
  State<LoginOptionScreen> createState() => _LoginOptionScreenState();
}

class _LoginOptionScreenState extends State<LoginOptionScreen> with UIMixin {
  LoginOption _selectedOption = LoginOption.email;
  bool get _isBetaEnvironment => ApiEndpoints.baseUrl.contains("stage");

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: contentTheme.brandRed,
      body: SafeArea(
        child: LayoutBuilder(
          builder: (context, constraints) {
            return Column(
              children: [
                const SizedBox(height: 24),
                _buildHeader(),
                const SizedBox(height: 16),
                _buildWelcomeTextsAndChips(),
                const SizedBox(height: 16),
                Expanded(
                  child: Container(
                    width: double.infinity,
                    decoration: const BoxDecoration(
                      color: Colors.white,
                      borderRadius:
                          BorderRadius.vertical(top: Radius.circular(32)),
                    ),
                    child: SingleChildScrollView(
                      padding: const EdgeInsets.symmetric(
                          horizontal: 20, vertical: 24),
                      child: ConstrainedBox(
                        constraints: BoxConstraints(
                          minHeight: constraints.maxHeight - 200,
                        ),
                        child: IntrinsicHeight(
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              _buildLoginForm(),
                              const SizedBox(height: 24),
                              const SizedBox(height: 8),
                              Center(child: _buildVersionInfo()),
                            ],
                          ),
                        ),
                      ),
                    ),
                  ),
                ),
              ],
            );
          },
        ),
      ),
    );
  }

  Widget _buildHeader() {
    return Container(
      padding: const EdgeInsets.all(12),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(16),
        boxShadow: [
          BoxShadow(
            color: Colors.black12,
            blurRadius: 6,
            offset: Offset(0, 3),
          )
        ],
      ),
      child: Image.asset(Images.logoDark, height: 70),
    );
  }

  Widget _buildBetaLabel() {
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
      decoration: BoxDecoration(
        color: Colors.orangeAccent,
        borderRadius: BorderRadius.circular(4),
      ),
      child: MyText(
        'BETA',
        color: Colors.white,
        fontWeight: 600,
        fontSize: 12,
      ),
    );
  }

  Widget _buildLoginOptionChips() {
    return Wrap(
      spacing: 12,
      runSpacing: 8,
      alignment: WrapAlignment.center,
      children: [
        _buildOptionChip(
          title: "User Name",
          icon: LucideIcons.mail,
          value: LoginOption.email,
        ),
        _buildOptionChip(
          title: "OTP",
          icon: LucideIcons.message_square,
          value: LoginOption.otp,
        ),
      ],
    );
  }

  Widget _buildWelcomeTextsAndChips() {
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 20),
      child: Column(
        children: [
          MyText(
            "Welcome to Marco",
            fontSize: 20,
            fontWeight: 700,
            color: Colors.white,
            textAlign: TextAlign.center,
          ),
          const SizedBox(height: 4),
          MyText(
            "Streamline Project Management and Boost Productivity with Automation.",
            fontSize: 14,
            color: Colors.white70,
            textAlign: TextAlign.center,
          ),
          if (_isBetaEnvironment) ...[
            const SizedBox(height: 8),
            _buildBetaLabel(),
          ],
          const SizedBox(height: 20),
          _buildLoginOptionChips(),
        ],
      ),
    );
  }

  Widget _buildOptionChip({
    required String title,
    required IconData icon,
    required LoginOption value,
  }) {
    final bool isSelected = _selectedOption == value;

    final Color selectedTextColor = contentTheme.brandRed;
    final Color unselectedTextColor = Colors.white;
    final Color selectedBgColor = Colors.grey[100]!;
    final Color unselectedBgColor = contentTheme.brandRed;

    return ChoiceChip(
      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
      label: Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          Icon(
            icon,
            size: 18,
            color: isSelected ? selectedTextColor : unselectedTextColor,
          ),
          const SizedBox(width: 6),
          MyText(
            title,
            fontSize: 14,
            fontWeight: 600,
            color: isSelected ? selectedTextColor : unselectedTextColor,
          ),
        ],
      ),
      selected: isSelected,
      onSelected: (_) => setState(() => _selectedOption = value),
      selectedColor: selectedBgColor,
      backgroundColor: unselectedBgColor,
      side: BorderSide(
        color: Colors.white.withOpacity(0.6),
        width: 1.2,
      ),
      elevation: 3,
      shadowColor: Colors.black12,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(15),
      ),
    );
  }

  Widget _buildLoginForm() {
    switch (_selectedOption) {
      case LoginOption.email:
        return EmailLoginForm();
      case LoginOption.otp:
        return const OTPLoginScreen();
    }
  }

  Widget _buildVersionInfo() {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8),
      child: MyText(
        'App version 1.0.0',
        color: Colors.grey.shade500,
        fontSize: 12,
      ),
    );
  }
}