import type { GoalDefinition, GoalStatus, PeriodType } from '@/services/goals';
import { GoalProgressBar } from './GoalProgressBar';

interface GoalCardProps {
  goal: GoalDefinition;
  onStatusChange?: (status: GoalStatus) => void;
  onDelete?: () => void;
  onDuplicate?: () => void;
  isUpdating?: boolean;
  isDeleting?: boolean;
}

export function GoalCard({
  goal,
  onStatusChange,
  onDelete,
  onDuplicate,
  isUpdating = false,
  isDeleting = false,
}: GoalCardProps) {
  const getStatusColor = (status: GoalStatus) => {
    const colors: Record<GoalStatus, string> = {
      draft: 'bg-gray-100 text-gray-800',
      active: 'bg-green-100 text-green-800',
      paused: 'bg-yellow-100 text-yellow-800',
      completed: 'bg-blue-100 text-blue-800',
      cancelled: 'bg-red-100 text-red-800',
    };
    return colors[status] || 'bg-gray-100 text-gray-800';
  };

  const getPeriodLabel = (period: PeriodType) => {
    const labels: Record<PeriodType, string> = {
      daily: 'Daily',
      weekly: 'Weekly',
      monthly: 'Monthly',
      quarterly: 'Quarterly',
      yearly: 'Yearly',
      custom: 'Custom',
    };
    return labels[period] || period;
  };

  const formatDate = (dateStr: string) => {
    return new Date(dateStr).toLocaleDateString();
  };

  return (
    <div className="bg-white shadow rounded-lg p-6 hover:shadow-md transition-shadow">
      <div className="flex items-start justify-between mb-4">
        <div className="flex-1 min-w-0">
          <h3 className="text-lg font-medium text-gray-900 truncate">{goal.name}</h3>
          <div className="flex items-center space-x-2 mt-1">
            <span className="text-sm text-gray-500 capitalize">{goal.type}</span>
            <span className="text-gray-300">|</span>
            <span className="text-sm text-gray-500">{getPeriodLabel(goal.period)}</span>
          </div>
        </div>
        {onStatusChange ? (
          <select
            value={goal.status}
            onChange={(e) => onStatusChange(e.target.value as GoalStatus)}
            disabled={isUpdating}
            className={`px-2 py-1 text-xs font-semibold rounded-full border-0 cursor-pointer ${getStatusColor(goal.status)}`}
          >
            <option value="draft">Draft</option>
            <option value="active">Active</option>
            <option value="paused">Paused</option>
            <option value="completed">Completed</option>
            <option value="cancelled">Cancelled</option>
          </select>
        ) : (
          <span className={`px-2 py-1 text-xs font-semibold rounded-full ${getStatusColor(goal.status)}`}>
            {goal.status}
          </span>
        )}
      </div>

      {goal.description && (
        <p className="text-sm text-gray-600 mb-4 line-clamp-2">{goal.description}</p>
      )}

      <div className="space-y-3 mb-4">
        <div className="flex justify-between text-sm">
          <span className="text-gray-500">Target</span>
          <span className="font-medium text-gray-900">
            {goal.targetValue.toLocaleString()} {goal.unit || ''}
          </span>
        </div>
        <div className="flex justify-between text-sm">
          <span className="text-gray-500">Duration</span>
          <span className="text-gray-900">
            {formatDate(goal.startsAt)} - {formatDate(goal.endsAt)}
          </span>
        </div>
        <div className="flex justify-between text-sm">
          <span className="text-gray-500">Assigned</span>
          <span className="text-gray-900">{goal.assignmentCount ?? 0} users</span>
        </div>
      </div>

      {goal.category && (
        <div className="mb-4">
          <span className="inline-block px-2 py-1 text-xs bg-gray-100 text-gray-600 rounded">
            {goal.category}
          </span>
        </div>
      )}

      {goal.milestones && goal.milestones.length > 0 && (
        <div className="mb-4">
          <div className="text-xs text-gray-500 mb-1">Milestones</div>
          <GoalProgressBar
            currentValue={0}
            targetValue={100}
            milestones={goal.milestones}
            showValue={false}
            showPercentage={false}
            size="sm"
          />
        </div>
      )}

      <div className="flex justify-between items-center pt-4 border-t border-gray-200">
        <a
          href={`/dashboard/goals/definitions/${goal.id}`}
          className="text-sm text-blue-600 hover:text-blue-900"
        >
          View Details
        </a>
        <div className="flex space-x-2">
          {onDuplicate && (
            <button
              onClick={onDuplicate}
              className="text-sm text-purple-600 hover:text-purple-900"
            >
              Duplicate
            </button>
          )}
          {onDelete && (
            <button
              onClick={onDelete}
              disabled={isDeleting}
              className="text-sm text-red-600 hover:text-red-900 disabled:opacity-50"
            >
              Delete
            </button>
          )}
        </div>
      </div>
    </div>
  );
}

export default GoalCard;