import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import '../../controllers/add_subscription_controller.dart';
import '../../providers/category_provider.dart';
import '../../l10n/app_localizations.dart';
import '../common/form_fields/base_text_field.dart';
import '../common/form_fields/currency_input_field.dart';
import '../common/form_fields/date_picker_field.dart';
import '../common/form_fields/currency_selector.dart';
import '../common/form_fields/billing_cycle_selector.dart';
import '../common/form_fields/category_selector.dart';
import '../glassmorphism_card.dart';
import '../../theme/app_colors.dart';

/// 구독 추가 화면의 폼 섹션
class AddSubscriptionForm extends StatelessWidget {
  final AddSubscriptionController controller;
  final Animation<double> fadeAnimation;
  final Animation<Offset> slideAnimation;
  final Function setState;

  const AddSubscriptionForm({
    super.key,
    required this.controller,
    required this.fadeAnimation,
    required this.slideAnimation,
    required this.setState,
  });

  @override
  Widget build(BuildContext context) {
    return FadeTransition(
      opacity: Tween<double>(begin: 0.0, end: 1.0).animate(
        CurvedAnimation(
          parent: controller.animationController!,
          curve: const Interval(0.2, 1.0, curve: Curves.easeIn),
        ),
      ),
      child: SlideTransition(
        position: Tween<Offset>(
          begin: const Offset(0.0, 0.4),
          end: Offset.zero,
        ).animate(CurvedAnimation(
          parent: controller.animationController!,
          curve: const Interval(0.2, 1.0, curve: Curves.easeOutCubic),
        )),
        child: GlassmorphismCard(
          backgroundColor: AppColors.glassCard,
          child: Padding(
            padding: const EdgeInsets.all(24),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                // 헤더
                Row(
                  children: [
                    ShaderMask(
                      shaderCallback: (bounds) => LinearGradient(
                        colors: controller.gradientColors,
                        begin: Alignment.topLeft,
                        end: Alignment.bottomRight,
                      ).createShader(bounds),
                      child: const Icon(
                        FontAwesomeIcons.fileLines,
                        size: 20,
                        color: Colors.white,
                      ),
                    ),
                    const SizedBox(width: 12),
                    Text(
                      AppLocalizations.of(context).serviceInfo,
                      style: const TextStyle(
                        fontSize: 18,
                        fontWeight: FontWeight.w700,
                        letterSpacing: -0.5,
                        color: Color(0xFF1E293B),
                      ),
                    ),
                  ],
                ),
                const SizedBox(height: 24),

                // 서비스명 필드
                BaseTextField(
                  controller: controller.serviceNameController,
                  focusNode: controller.serviceNameFocus,
                  label: AppLocalizations.of(context).labelServiceName,
                  hintText: AppLocalizations.of(context).hintServiceName,
                  textInputAction: TextInputAction.next,
                  onEditingComplete: () {
                    controller.monthlyCostFocus.requestFocus();
                  },
                  validator: (value) {
                    if (value == null || value.isEmpty) {
                      return AppLocalizations.of(context).serviceNameRequired;
                    }
                    return null;
                  },
                ),
                const SizedBox(height: 20),

                // 월 지출 및 통화 선택
                Row(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Expanded(
                      flex: 2,
                      child: CurrencyInputField(
                        controller: controller.monthlyCostController,
                        currency: controller.currency,
                        label: AppLocalizations.of(context).labelMonthlyExpense,
                        focusNode: controller.monthlyCostFocus,
                        textInputAction: TextInputAction.next,
                        onEditingComplete: () {
                          controller.billingCycleFocus.requestFocus();
                        },
                        validator: (value) {
                          if (value == null || value.isEmpty) {
                            return AppLocalizations.of(context).amountRequired;
                          }
                          return null;
                        },
                      ),
                    ),
                    const SizedBox(width: 12),
                    Expanded(
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Text(
                            AppLocalizations.of(context).currency,
                            style: const TextStyle(
                              fontSize: 16,
                              fontWeight: FontWeight.w600,
                            ),
                          ),
                          const SizedBox(height: 8),
                          CurrencySelector(
                            currency: controller.currency,
                            isGlassmorphism: true,
                            onChanged: (value) {
                              setState(() {
                                controller.currency = value;
                              });
                            },
                          ),
                        ],
                      ),
                    ),
                  ],
                ),
                const SizedBox(height: 20),

                // 결제 주기
                Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      AppLocalizations.of(context).billingCycle,
                      style: const TextStyle(
                        color: AppColors.textPrimary,
                        fontSize: 16,
                        fontWeight: FontWeight.w600,
                      ),
                    ),
                    const SizedBox(height: 8),
                    BillingCycleSelector(
                      billingCycle: controller.billingCycle,
                      baseColor: controller.gradientColors[0],
                      isGlassmorphism: true,
                      onChanged: (value) {
                        setState(() {
                          controller.billingCycle = value;
                        });
                      },
                    ),
                  ],
                ),
                const SizedBox(height: 20),

                // 다음 결제일
                DatePickerField(
                  selectedDate: controller.nextBillingDate ?? DateTime.now(),
                  onDateSelected: (date) {
                    setState(() {
                      controller.nextBillingDate = date;
                    });
                  },
                  label: AppLocalizations.of(context).nextBillingDate,
                  firstDate: DateTime.now(),
                  lastDate: DateTime.now().add(const Duration(days: 365 * 2)),
                  primaryColor: controller.gradientColors[0],
                ),
                const SizedBox(height: 20),

                // 웹사이트 URL
                BaseTextField(
                  controller: controller.websiteUrlController,
                  focusNode: controller.websiteUrlFocus,
                  label: AppLocalizations.of(context).websiteUrlOptional,
                  hintText: AppLocalizations.of(context).hintWebsiteUrl,
                  keyboardType: TextInputType.url,
                  prefixIcon: Icon(
                    Icons.link_rounded,
                    color: Colors.grey[600],
                  ),
                ),
                const SizedBox(height: 20),

                // 카테고리 선택
                Consumer<CategoryProvider>(
                  builder: (context, categoryProvider, child) {
                    return Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          AppLocalizations.of(context).category,
                          style: const TextStyle(
                            fontSize: 16,
                            fontWeight: FontWeight.w600,
                          ),
                        ),
                        const SizedBox(height: 8),
                        CategorySelector(
                          categories: categoryProvider.categories,
                          selectedCategoryId: controller.selectedCategoryId,
                          baseColor: controller.gradientColors[0],
                          isGlassmorphism: true,
                          onChanged: (categoryId) {
                            setState(() {
                              controller.selectedCategoryId = categoryId;
                            });
                          },
                        ),
                      ],
                    );
                  },
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}