/// Price Display Widget
///
/// Formats and displays prices in Vietnamese currency format
library;

import 'package:flutter/material.dart';
import '../../core/utils/formatters.dart';

/// Price display with Vietnamese currency formatting
class PriceDisplay extends StatelessWidget {
  final double price;
  final TextStyle? style;
  final bool showSymbol;
  final int decimalDigits;
  final Color? color;
  final FontWeight? fontWeight;
  final double? fontSize;

  const PriceDisplay({
    super.key,
    required this.price,
    this.style,
    this.showSymbol = true,
    this.decimalDigits = 0,
    this.color,
    this.fontWeight,
    this.fontSize,
  });

  @override
  Widget build(BuildContext context) {
    final formattedPrice = CurrencyFormatter.formatWithDecimals(
      price,
      decimalDigits: decimalDigits,
      showSymbol: showSymbol,
    );

    return Text(
      formattedPrice,
      style: style ??
          TextStyle(
            color: color,
            fontWeight: fontWeight ?? FontWeight.w600,
            fontSize: fontSize,
          ),
    );
  }
}

/// Price display with sale price comparison
class SalePriceDisplay extends StatelessWidget {
  final double originalPrice;
  final double salePrice;
  final TextStyle? originalPriceStyle;
  final TextStyle? salePriceStyle;
  final bool showSymbol;
  final MainAxisAlignment alignment;

  const SalePriceDisplay({
    super.key,
    required this.originalPrice,
    required this.salePrice,
    this.originalPriceStyle,
    this.salePriceStyle,
    this.showSymbol = true,
    this.alignment = MainAxisAlignment.start,
  });

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisAlignment: alignment,
      crossAxisAlignment: CrossAxisAlignment.baseline,
      textBaseline: TextBaseline.alphabetic,
      children: [
        // Sale price (larger, prominent)
        Text(
          CurrencyFormatter.format(salePrice, showSymbol: showSymbol),
          style: salePriceStyle ??
              const TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.bold,
                color: Colors.red,
              ),
        ),
        const SizedBox(width: 8),
        // Original price (smaller, strikethrough)
        Text(
          CurrencyFormatter.format(originalPrice, showSymbol: showSymbol),
          style: originalPriceStyle ??
              TextStyle(
                fontSize: 14,
                fontWeight: FontWeight.normal,
                color: Colors.grey[600],
                decoration: TextDecoration.lineThrough,
              ),
        ),
      ],
    );
  }
}

/// Price display with discount percentage badge
class PriceWithDiscount extends StatelessWidget {
  final double originalPrice;
  final double salePrice;
  final bool showSymbol;
  final TextStyle? salePriceStyle;
  final TextStyle? originalPriceStyle;

  const PriceWithDiscount({
    super.key,
    required this.originalPrice,
    required this.salePrice,
    this.showSymbol = true,
    this.salePriceStyle,
    this.originalPriceStyle,
  });

  double get discountPercentage {
    return ((originalPrice - salePrice) / originalPrice * 100);
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Row(
          children: [
            // Sale price
            Text(
              CurrencyFormatter.format(salePrice, showSymbol: showSymbol),
              style: salePriceStyle ??
                  const TextStyle(
                    fontSize: 18,
                    fontWeight: FontWeight.bold,
                    color: Colors.red,
                  ),
            ),
            const SizedBox(width: 8),
            // Discount badge
            Container(
              padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
              decoration: BoxDecoration(
                color: Colors.red,
                borderRadius: BorderRadius.circular(4),
              ),
              child: Text(
                '-${discountPercentage.toStringAsFixed(0)}%',
                style: const TextStyle(
                  fontSize: 11,
                  fontWeight: FontWeight.bold,
                  color: Colors.white,
                ),
              ),
            ),
          ],
        ),
        const SizedBox(height: 4),
        // Original price
        Text(
          CurrencyFormatter.format(originalPrice, showSymbol: showSymbol),
          style: originalPriceStyle ??
              TextStyle(
                fontSize: 14,
                fontWeight: FontWeight.normal,
                color: Colors.grey[600],
                decoration: TextDecoration.lineThrough,
              ),
        ),
      ],
    );
  }
}

/// Compact price display for lists/grids
class CompactPriceDisplay extends StatelessWidget {
  final double price;
  final double? salePrice;
  final bool showSymbol;

  const CompactPriceDisplay({
    super.key,
    required this.price,
    this.salePrice,
    this.showSymbol = true,
  });

  @override
  Widget build(BuildContext context) {
    final bool isOnSale = salePrice != null && salePrice! < price;

    if (isOnSale) {
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            CurrencyFormatter.format(salePrice!, showSymbol: showSymbol),
            style: const TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.bold,
              color: Colors.red,
            ),
          ),
          Text(
            CurrencyFormatter.format(price, showSymbol: showSymbol),
            style: TextStyle(
              fontSize: 12,
              color: Colors.grey[600],
              decoration: TextDecoration.lineThrough,
            ),
          ),
        ],
      );
    }

    return Text(
      CurrencyFormatter.format(price, showSymbol: showSymbol),
      style: const TextStyle(
        fontSize: 16,
        fontWeight: FontWeight.bold,
      ),
    );
  }
}

/// Large price display for checkout/order summary
class LargePriceDisplay extends StatelessWidget {
  final double price;
  final String? label;
  final bool showSymbol;
  final Color? color;

  const LargePriceDisplay({
    super.key,
    required this.price,
    this.label,
    this.showSymbol = true,
    this.color,
  });

  @override
  Widget build(BuildContext context) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        if (label != null) ...[
          Text(
            label!,
            style: TextStyle(
              fontSize: 14,
              color: Colors.grey[600],
            ),
          ),
          const SizedBox(height: 4),
        ],
        Text(
          CurrencyFormatter.format(price, showSymbol: showSymbol),
          style: TextStyle(
            fontSize: 28,
            fontWeight: FontWeight.bold,
            color: color ?? Theme.of(context).primaryColor,
          ),
        ),
      ],
    );
  }
}