import 'package:flutter/material.dart';
import 'color_system.dart';

/// SVRNTY Status Color Utility
/// Provides consistent color access for delivery status indicators across the app
class StatusColorScheme {
  // Pending: Amber - Attention needed
  static const Color pending = SvrntyColors.statusPending; // #F59E0B
  static const Color pendingBackground = SvrntyColors.statusPendingBg; // #FEF3C7
  static const Color pendingText = Color(0xFF92400E);

  // In Transit: Teal Blue - Active process
  static const Color inTransit = SvrntyColors.statusInTransit; // #2D3843
  static const Color inTransitBackground = SvrntyColors.statusInTransitBg; // #E0E7ED
  static const Color inTransitText = Color(0xFF0A1419); // WCAG AAA: 8.1:1 on bg

  // Completed: Green - Success
  static const Color completed = SvrntyColors.statusCompleted; // #22C55E
  static const Color completedBackground = SvrntyColors.statusCompletedBg; // #D1FAE5
  static const Color completedText = Color(0xFF065F46);

  // Failed: Red - Problem
  static const Color failed = SvrntyColors.statusFailed; // #EF4444
  static const Color failedBackground = SvrntyColors.statusFailedBg; // #FEE2E2
  static const Color failedText = Color(0xFF991B1B);

  // Cancelled: Gray - Inactive
  static const Color cancelled = SvrntyColors.statusCancelled; // #737A82
  static const Color cancelledBackground = SvrntyColors.statusCancelledBg; // #F3F4F6
  static const Color cancelledText = Color(0xFF1F2937); // WCAG AAA: 7.5:1 on bg

  // On Hold: Slate Blue - Paused/Informational
  static const Color onHold = SvrntyColors.statusOnHold; // #3A4958
  static const Color onHoldBackground = SvrntyColors.statusOnHoldBg; // #E2E8F0
  static const Color onHoldText = Color(0xFF1E293B);

  /// Get status color by status type
  static Color getStatusColor(String status) {
    switch (status.toLowerCase()) {
      case 'pending':
        return pending;
      case 'in_transit':
      case 'in_progress':
      case 'processing':
        return inTransit;
      case 'completed':
      case 'delivered':
      case 'done':
        return completed;
      case 'failed':
      case 'error':
        return failed;
      case 'cancelled':
      case 'skipped':
      case 'rejected':
        return cancelled;
      case 'on_hold':
      case 'paused':
      case 'waiting':
        return onHold;
      default:
        return inTransit;
    }
  }

  /// Get status background color by status type
  static Color getStatusBackground(String status) {
    switch (status.toLowerCase()) {
      case 'pending':
        return pendingBackground;
      case 'in_transit':
      case 'in_progress':
      case 'processing':
        return inTransitBackground;
      case 'completed':
      case 'delivered':
      case 'done':
        return completedBackground;
      case 'failed':
      case 'error':
        return failedBackground;
      case 'cancelled':
      case 'skipped':
      case 'rejected':
        return cancelledBackground;
      case 'on_hold':
      case 'paused':
      case 'waiting':
        return onHoldBackground;
      default:
        return inTransitBackground;
    }
  }

  /// Get status text color by status type
  static Color getStatusText(String status) {
    switch (status.toLowerCase()) {
      case 'pending':
        return pendingText;
      case 'in_transit':
      case 'in_progress':
      case 'processing':
        return inTransitText;
      case 'completed':
      case 'delivered':
      case 'done':
        return completedText;
      case 'failed':
      case 'error':
        return failedText;
      case 'cancelled':
      case 'skipped':
      case 'rejected':
        return cancelledText;
      case 'on_hold':
      case 'paused':
      case 'waiting':
        return onHoldText;
      default:
        return inTransitText;
    }
  }

  /// Get status icon by status type
  static IconData getStatusIcon(String status) {
    switch (status.toLowerCase()) {
      case 'pending':
        return Icons.schedule;
      case 'in_transit':
      case 'in_progress':
      case 'processing':
        return Icons.local_shipping;
      case 'completed':
      case 'delivered':
      case 'done':
        return Icons.check_circle;
      case 'failed':
      case 'error':
        return Icons.error;
      case 'cancelled':
      case 'skipped':
      case 'rejected':
        return Icons.cancel;
      case 'on_hold':
      case 'paused':
      case 'waiting':
        return Icons.pause_circle;
      default:
        return Icons.info;
    }
  }

  /// Get status label by status type
  static String getStatusLabel(String status) {
    switch (status.toLowerCase()) {
      case 'pending':
        return 'Pending';
      case 'in_transit':
      case 'in_progress':
        return 'In Transit';
      case 'processing':
        return 'Processing';
      case 'completed':
      case 'delivered':
        return 'Delivered';
      case 'done':
        return 'Completed';
      case 'failed':
      case 'error':
        return 'Failed';
      case 'cancelled':
        return 'Cancelled';
      case 'skipped':
        return 'Skipped';
      case 'rejected':
        return 'Rejected';
      case 'on_hold':
        return 'On Hold';
      case 'paused':
        return 'Paused';
      case 'waiting':
        return 'Waiting';
      default:
        return status;
    }
  }
}

/// Status Badge Widget
class StatusBadgeWidget extends StatelessWidget {
  final String status;
  final bool showIcon;
  final bool showLabel;
  final double fontSize;

  const StatusBadgeWidget({
    Key? key,
    required this.status,
    this.showIcon = true,
    this.showLabel = true,
    this.fontSize = 12,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
      decoration: BoxDecoration(
        color: StatusColorScheme.getStatusBackground(status),
        borderRadius: BorderRadius.circular(6),
      ),
      child: Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          if (showIcon) ...[
            Icon(
              StatusColorScheme.getStatusIcon(status),
              color: StatusColorScheme.getStatusColor(status),
              size: fontSize + 2,
            ),
            const SizedBox(width: 4),
          ],
          if (showLabel)
            Text(
              StatusColorScheme.getStatusLabel(status),
              style: TextStyle(
                color: StatusColorScheme.getStatusColor(status),
                fontWeight: FontWeight.w600,
                fontSize: fontSize,
              ),
            ),
        ],
      ),
    );
  }
}

/// Status Accent Bar Widget (for list items)
class StatusAccentBar extends StatelessWidget {
  final String status;
  final double width;
  final double height;

  const StatusAccentBar({
    Key? key,
    required this.status,
    this.width = 4,
    this.height = 60,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Container(
      width: width,
      height: height,
      decoration: BoxDecoration(
        color: StatusColorScheme.getStatusColor(status),
        borderRadius: BorderRadius.circular(width / 2),
      ),
    );
  }
}
