import { useState } from 'react'
import type { ValidationResult, LegalReference } from './types'

interface OutputAreaProps {
  generatedMessage: string
  setGeneratedMessage: (msg: string) => void
  subject: string
  validation: ValidationResult | null
  legalRefs: LegalReference[]
  loading: boolean
  onImprove: () => void
  onCopy: () => void
}

export function OutputArea({
  generatedMessage,
  setGeneratedMessage,
  subject,
  validation,
  legalRefs,
  loading,
  onImprove,
  onCopy,
}: OutputAreaProps) {
  const [showLegalInfo, setShowLegalInfo] = useState(false)

  return (
    <div className="lg:col-span-2 space-y-6">
      {/* Generated Message */}
      <div className="bg-white rounded-lg shadow p-6">
        <div className="flex items-center justify-between mb-4">
          <h2 className="text-lg font-semibold">Generierte Nachricht</h2>
          {generatedMessage && (
            <div className="flex gap-2">
              <button
                onClick={onImprove}
                disabled={loading}
                className="text-sm bg-green-100 text-green-700 px-3 py-1 rounded hover:bg-green-200"
              >
                Verbessern
              </button>
              <button
                onClick={onCopy}
                className="text-sm bg-gray-100 text-gray-700 px-3 py-1 rounded hover:bg-gray-200"
              >
                Kopieren
              </button>
            </div>
          )}
        </div>

        {subject && (
          <div className="mb-3 p-2 bg-gray-50 rounded">
            <span className="text-sm font-medium text-gray-500">Betreff: </span>
            <span className="text-sm">{subject}</span>
          </div>
        )}

        {generatedMessage ? (
          <textarea
            value={generatedMessage}
            onChange={(e) => setGeneratedMessage(e.target.value)}
            className="w-full border rounded-md p-4 min-h-[400px] font-mono text-sm"
          />
        ) : (
          <div className="text-gray-400 text-center py-20 border-2 border-dashed rounded-md">
            Hier erscheint die generierte Nachricht
          </div>
        )}
      </div>

      {/* Validation */}
      {validation && (
        <div className="bg-white rounded-lg shadow p-6">
          <h3 className="text-lg font-semibold mb-4">GFK-Analyse</h3>

          {/* Score */}
          <div className="mb-4">
            <div className="flex items-center justify-between mb-1">
              <span className="text-sm font-medium">GFK-Score</span>
              <span className={`text-sm font-bold ${
                validation.gfk_score >= 0.8 ? 'text-green-600' :
                validation.gfk_score >= 0.6 ? 'text-yellow-600' : 'text-red-600'
              }`}>
                {Math.round(validation.gfk_score * 100)}%
              </span>
            </div>
            <div className="w-full bg-gray-200 rounded-full h-2">
              <div
                className={`h-2 rounded-full ${
                  validation.gfk_score >= 0.8 ? 'bg-green-500' :
                  validation.gfk_score >= 0.6 ? 'bg-yellow-500' : 'bg-red-500'
                }`}
                style={{ width: `${validation.gfk_score * 100}%` }}
              />
            </div>
          </div>

          {/* Issues */}
          {validation.issues.length > 0 && (
            <div className="mb-4">
              <h4 className="text-sm font-medium text-red-600 mb-2">
                Verbesserungsvorschlaege:
              </h4>
              <ul className="text-sm space-y-1">
                {validation.issues.map((issue, i) => (
                  <li key={i} className="flex items-start">
                    <span className="text-red-500 mr-2">!</span>
                    <span>{issue}</span>
                  </li>
                ))}
              </ul>
            </div>
          )}

          {/* Positive Elements */}
          {validation.positive_elements.length > 0 && (
            <div>
              <h4 className="text-sm font-medium text-green-600 mb-2">
                Positive Elemente:
              </h4>
              <ul className="text-sm space-y-1">
                {validation.positive_elements.map((elem, i) => (
                  <li key={i} className="flex items-start">
                    <span className="text-green-500 mr-2">+</span>
                    <span>{elem}</span>
                  </li>
                ))}
              </ul>
            </div>
          )}
        </div>
      )}

      {/* Legal References */}
      {legalRefs.length > 0 && (
        <div className="bg-white rounded-lg shadow p-6">
          <button
            onClick={() => setShowLegalInfo(!showLegalInfo)}
            className="flex items-center justify-between w-full text-left"
          >
            <h3 className="text-lg font-semibold">Rechtliche Grundlagen</h3>
            <span>{showLegalInfo ? '-' : '+'}</span>
          </button>
          {showLegalInfo && (
            <div className="mt-4 space-y-4">
              {legalRefs.map((ref, i) => (
                <div key={i} className="border rounded-md p-3 bg-gray-50">
                  <div className="font-medium">
                    {ref.law} {ref.paragraph}
                  </div>
                  <div className="text-sm text-gray-600">{ref.title}</div>
                  <div className="text-sm mt-1">{ref.summary}</div>
                  <div className="text-xs text-blue-600 mt-1">
                    Relevanz: {ref.relevance}
                  </div>
                </div>
              ))}
            </div>
          )}
        </div>
      )}
    </div>
  )
}