import 'package:flutter/material.dart';

import '../../../../common/extension/extension.dart';
import '../../../../common/theme/theme.dart';
import '../../../components/spacer/spacer.dart';
import 'profit_sharing_allocation.dart';
import 'profit_sharing_status.dart';

/// Satu baris rincian SDL, bisa per kategori induk atau per periode.
class ProfitSharingSdlItem {
  final String label;
  final int sdl;
  final int revenue;
  final double? feePercent;

  const ProfitSharingSdlItem({
    required this.label,
    required this.sdl,
    required this.revenue,
    this.feePercent,
  });
}

/// Section khusus SDL (bagian owner): total di blok hijau, lalu rinciannya.
/// Urutan [items] ditampilkan apa adanya.
class ProfitSharingSdlSection extends StatelessWidget {
  final int sdl;
  final int revenue;

  /// Persen di blok total: fee owner kalau satu kategori, atau persen
  /// efektif terhadap omzet kalau gabungan beberapa kategori.
  final double percent;
  final String breakdownTitle;
  final List<ProfitSharingSdlItem> items;

  const ProfitSharingSdlSection({
    super.key,
    required this.sdl,
    required this.revenue,
    required this.percent,
    required this.breakdownTitle,
    this.items = const [],
  });

  @override
  Widget build(BuildContext context) {
    final totalSdl = items.fold<int>(0, (sum, e) => sum + e.sdl);

    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 16),
      padding: const EdgeInsets.all(20),
      decoration: BoxDecoration(
        color: AppColor.white,
        borderRadius: BorderRadius.circular(16),
        boxShadow: [
          BoxShadow(
            color: AppColor.textLight.withOpacity(0.08),
            spreadRadius: 1,
            blurRadius: 10,
            offset: const Offset(0, 2),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            context.lang.sdl_summary,
            style: AppStyle.lg.copyWith(
              fontWeight: FontWeight.w700,
              color: AppColor.textPrimary,
            ),
          ),
          const SizedBox(height: 2),
          Text(
            context.lang.sdl_desc,
            style: AppStyle.xs.copyWith(color: AppColor.textSecondary),
          ),

          const SpaceHeight(16),

          _TotalBlock(sdl: sdl, revenue: revenue, percent: percent),

          if (items.isNotEmpty) ...[
            const SpaceHeight(20),
            Text(
              breakdownTitle,
              style: AppStyle.md.copyWith(
                fontWeight: FontWeight.w700,
                color: AppColor.textPrimary,
              ),
            ),
            const SpaceHeight(12),
            for (var i = 0; i < items.length; i++) ...[
              if (i > 0) const Divider(height: 24, color: AppColor.borderLight),
              _SdlRow(
                item: items[i],
                share: totalSdl == 0 ? 0 : items[i].sdl / totalSdl,
              ),
            ],
          ],
        ],
      ),
    );
  }
}

class _TotalBlock extends StatelessWidget {
  final int sdl;
  final int revenue;
  final double percent;

  const _TotalBlock({
    required this.sdl,
    required this.revenue,
    required this.percent,
  });

  @override
  Widget build(BuildContext context) {
    const color = ProfitSharingColor.owner;

    return Container(
      width: double.infinity,
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        gradient: LinearGradient(
          colors: [color, darken(color)],
          begin: Alignment.topLeft,
          end: Alignment.bottomRight,
        ),
        borderRadius: BorderRadius.circular(14),
        boxShadow: [
          BoxShadow(
            color: color.withOpacity(0.3),
            blurRadius: 10,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Container(
                width: 36,
                height: 36,
                decoration: BoxDecoration(
                  color: AppColor.textWhite.withOpacity(0.2),
                  borderRadius: BorderRadius.circular(10),
                ),
                child: const Icon(
                  Icons.account_balance_wallet_rounded,
                  color: AppColor.textWhite,
                  size: 20,
                ),
              ),
              const SpaceWidth(10),
              Expanded(
                child: Text(
                  context.lang.sdl,
                  style: AppStyle.md.copyWith(
                    color: AppColor.textWhite,
                    fontWeight: FontWeight.w700,
                  ),
                ),
              ),
              ProfitSharingFeeBadge(
                feePercent: percent,
                onDarkBackground: true,
              ),
            ],
          ),
          const SpaceHeight(14),
          FittedBox(
            fit: BoxFit.scaleDown,
            alignment: Alignment.centerLeft,
            child: Text(
              sdl.currencyFormatRp,
              style: AppStyle.h3.copyWith(
                color: AppColor.textWhite,
                fontWeight: FontWeight.w900,
              ),
            ),
          ),
          const SizedBox(height: 4),
          Text(
            context.lang.from_revenue(revenue.currencyFormatRp),
            style: AppStyle.sm.copyWith(
              color: AppColor.textWhite.withOpacity(0.85),
            ),
          ),
        ],
      ),
    );
  }
}

class _SdlRow extends StatelessWidget {
  final ProfitSharingSdlItem item;

  /// Porsi baris ini terhadap total SDL di daftar (0..1).
  final double share;

  const _SdlRow({required this.item, required this.share});

  @override
  Widget build(BuildContext context) {
    final amountColor = darken(ProfitSharingColor.owner);

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Row(
          children: [
            Expanded(
              child: Row(
                children: [
                  Flexible(
                    child: Text(
                      item.label,
                      style: AppStyle.md.copyWith(
                        color: AppColor.textPrimary,
                        fontWeight: FontWeight.w700,
                      ),
                      maxLines: 1,
                      overflow: TextOverflow.ellipsis,
                    ),
                  ),
                  if (item.feePercent != null) ...[
                    const SpaceWidth(6),
                    ProfitSharingFeeBadge(feePercent: item.feePercent!),
                  ],
                ],
              ),
            ),
            const SpaceWidth(8),
            Text(
              item.sdl.currencyFormatRp,
              style: AppStyle.md.copyWith(
                color: amountColor,
                fontWeight: FontWeight.w800,
              ),
            ),
          ],
        ),
        const SpaceHeight(8),
        ClipRRect(
          borderRadius: BorderRadius.circular(6),
          child: LinearProgressIndicator(
            value: share.clamp(0.0, 1.0),
            minHeight: 6,
            backgroundColor: AppColor.border,
            valueColor: const AlwaysStoppedAnimation<Color>(
              ProfitSharingColor.owner,
            ),
          ),
        ),
        const SpaceHeight(6),
        Row(
          children: [
            Expanded(
              child: Text(
                context.lang.from_revenue(item.revenue.currencyFormatRp),
                style: AppStyle.xs.copyWith(color: AppColor.textSecondary),
                maxLines: 1,
                overflow: TextOverflow.ellipsis,
              ),
            ),
            Text(
              formatPercent(share * 100),
              style: AppStyle.xs.copyWith(
                color: amountColor,
                fontWeight: FontWeight.w700,
              ),
            ),
          ],
        ),
      ],
    );
  }
}