'use client';

import { useState } from 'react';
import Modal from '@/components/ui/Modal';
import Button from '@/components/ui/Button';
import type { FileProtestCommandDTO } from '@/lib/types/generated/FileProtestCommandDTO';
import type { ProtestIncidentDTO } from '@/lib/types/generated/ProtestIncidentDTO';
import { useServices } from '@/lib/services/ServiceProvider';
import {
  AlertTriangle,
  Video,
  MessageSquare,
  Hash,
  Clock,
  User,
  FileText,
  CheckCircle2,
} from 'lucide-react';

type ProtestParticipant = {
  id: string;
  name: string;
};

interface FileProtestModalProps {
  isOpen: boolean;
  onClose: () => void;
  raceId: string;
  leagueId?: string;
  protestingDriverId: string;
  participants: ProtestParticipant[];
}

export default function FileProtestModal({
  isOpen,
  onClose,
  raceId,
  leagueId,
  protestingDriverId,
  participants,
}: FileProtestModalProps) {
  const { raceService } = useServices();
  const [step, setStep] = useState<'form' | 'submitting' | 'success' | 'error'>('form');
  const [errorMessage, setErrorMessage] = useState<string | null>(null);
  
  // Form state
  const [accusedDriverId, setAccusedDriverId] = useState<string>('');
  const [lap, setLap] = useState<string>('');
  const [timeInRace, setTimeInRace] = useState<string>('');
  const [description, setDescription] = useState<string>('');
  const [comment, setComment] = useState<string>('');
  const [proofVideoUrl, setProofVideoUrl] = useState<string>('');

  const otherParticipants = participants.filter(p => p.id !== protestingDriverId);

  const handleSubmit = async () => {
    // Validation
    if (!accusedDriverId) {
      setErrorMessage('Please select the driver you are protesting against.');
      return;
    }
    if (!lap || parseInt(lap, 10) < 0) {
      setErrorMessage('Please enter a valid lap number.');
      return;
    }
    if (!description.trim()) {
      setErrorMessage('Please describe what happened.');
      return;
    }

    setStep('submitting');
    setErrorMessage(null);

    try {
      const incident: ProtestIncidentDTO = {
        lap: parseInt(lap, 10),
        description: description.trim(),
        ...(timeInRace ? { timeInRace: parseInt(timeInRace, 10) } : {}),
      };

      const command = {
        raceId,
        protestingDriverId,
        accusedDriverId,
        incident,
        ...(comment.trim() ? { comment: comment.trim() } : {}),
        ...(proofVideoUrl.trim() ? { proofVideoUrl: proofVideoUrl.trim() } : {}),
      } satisfies FileProtestCommandDTO;

      await raceService.fileProtest(command);

      setStep('success');
    } catch (err) {
      setStep('error');
      setErrorMessage(err instanceof Error ? err.message : 'Failed to file protest');
    }
  };

  const handleClose = () => {
    // Reset form state
    setStep('form');
    setErrorMessage(null);
    setAccusedDriverId('');
    setLap('');
    setTimeInRace('');
    setDescription('');
    setComment('');
    setProofVideoUrl('');
    onClose();
  };

  if (step === 'success') {
    return (
      <Modal
        isOpen={isOpen}
        onOpenChange={handleClose}
        title="Protest Filed Successfully"
      >
        <div className="flex flex-col items-center py-6 text-center">
          <div className="p-4 bg-performance-green/20 rounded-full mb-4">
            <CheckCircle2 className="w-8 h-8 text-performance-green" />
          </div>
          <p className="text-white font-medium mb-2">Your protest has been submitted</p>
          <p className="text-sm text-gray-400 mb-6">
            The stewards will review your protest and make a decision. 
            You'll be notified of the outcome.
          </p>
          <Button variant="primary" onClick={handleClose}>
            Close
          </Button>
        </div>
      </Modal>
    );
  }

  return (
    <Modal
      isOpen={isOpen}
      onOpenChange={handleClose}
      title="File a Protest"
      description="Report an incident to the stewards for review. Please provide as much detail as possible."
    >
      <div className="space-y-5">
        {errorMessage && (
          <div className="flex items-start gap-3 p-3 bg-warning-amber/10 border border-warning-amber/30 rounded-lg">
            <AlertTriangle className="w-5 h-5 text-warning-amber flex-shrink-0 mt-0.5" />
            <p className="text-sm text-warning-amber">{errorMessage}</p>
          </div>
        )}

        {/* Driver Selection */}
        <div>
          <label className="flex items-center gap-2 text-sm font-medium text-gray-300 mb-2">
            <User className="w-4 h-4 text-primary-blue" />
            Driver involved *
          </label>
          <select
            value={accusedDriverId}
            onChange={(e) => setAccusedDriverId(e.target.value)}
            disabled={step === 'submitting'}
            className="w-full px-3 py-2.5 bg-deep-graphite border border-charcoal-outline rounded-lg text-white text-sm focus:outline-none focus:ring-2 focus:ring-primary-blue/50 focus:border-primary-blue disabled:opacity-50"
          >
            <option value="">Select driver...</option>
            {otherParticipants.map((driver) => (
              <option key={driver.id} value={driver.id}>
                {driver.name}
              </option>
            ))}
          </select>
        </div>

        {/* Lap and Time */}
        <div className="grid grid-cols-2 gap-4">
          <div>
            <label className="flex items-center gap-2 text-sm font-medium text-gray-300 mb-2">
              <Hash className="w-4 h-4 text-primary-blue" />
              Lap number *
            </label>
            <input
              type="number"
              min="0"
              value={lap}
              onChange={(e) => setLap(e.target.value)}
              disabled={step === 'submitting'}
              placeholder="e.g. 5"
              className="w-full px-3 py-2.5 bg-deep-graphite border border-charcoal-outline rounded-lg text-white text-sm focus:outline-none focus:ring-2 focus:ring-primary-blue/50 focus:border-primary-blue disabled:opacity-50"
            />
          </div>
          <div>
            <label className="flex items-center gap-2 text-sm font-medium text-gray-300 mb-2">
              <Clock className="w-4 h-4 text-primary-blue" />
              Time (seconds)
            </label>
            <input
              type="number"
              min="0"
              value={timeInRace}
              onChange={(e) => setTimeInRace(e.target.value)}
              disabled={step === 'submitting'}
              placeholder="Optional"
              className="w-full px-3 py-2.5 bg-deep-graphite border border-charcoal-outline rounded-lg text-white text-sm focus:outline-none focus:ring-2 focus:ring-primary-blue/50 focus:border-primary-blue disabled:opacity-50"
            />
          </div>
        </div>

        {/* Incident Description */}
        <div>
          <label className="flex items-center gap-2 text-sm font-medium text-gray-300 mb-2">
            <FileText className="w-4 h-4 text-primary-blue" />
            What happened? *
          </label>
          <textarea
            value={description}
            onChange={(e) => setDescription(e.target.value)}
            disabled={step === 'submitting'}
            placeholder="Describe the incident clearly and objectively..."
            rows={3}
            className="w-full px-3 py-2.5 bg-deep-graphite border border-charcoal-outline rounded-lg text-white text-sm focus:outline-none focus:ring-2 focus:ring-primary-blue/50 focus:border-primary-blue disabled:opacity-50 resize-none"
          />
        </div>

        {/* Additional Comment */}
        <div>
          <label className="flex items-center gap-2 text-sm font-medium text-gray-300 mb-2">
            <MessageSquare className="w-4 h-4 text-primary-blue" />
            Additional comment
          </label>
          <textarea
            value={comment}
            onChange={(e) => setComment(e.target.value)}
            disabled={step === 'submitting'}
            placeholder="Any additional context for the stewards..."
            rows={2}
            className="w-full px-3 py-2.5 bg-deep-graphite border border-charcoal-outline rounded-lg text-white text-sm focus:outline-none focus:ring-2 focus:ring-primary-blue/50 focus:border-primary-blue disabled:opacity-50 resize-none"
          />
        </div>

        {/* Video Proof */}
        <div>
          <label className="flex items-center gap-2 text-sm font-medium text-gray-300 mb-2">
            <Video className="w-4 h-4 text-primary-blue" />
            Video proof URL
          </label>
          <input
            type="url"
            value={proofVideoUrl}
            onChange={(e) => setProofVideoUrl(e.target.value)}
            disabled={step === 'submitting'}
            placeholder="https://youtube.com/... or https://streamable.com/..."
            className="w-full px-3 py-2.5 bg-deep-graphite border border-charcoal-outline rounded-lg text-white text-sm focus:outline-none focus:ring-2 focus:ring-primary-blue/50 focus:border-primary-blue disabled:opacity-50"
          />
          <p className="mt-1.5 text-xs text-gray-500">
            Providing video evidence significantly helps the stewards review your protest.
          </p>
        </div>

        {/* Info Box */}
        <div className="p-3 bg-iron-gray rounded-lg border border-charcoal-outline">
          <p className="text-xs text-gray-400">
            <strong className="text-gray-300">Note:</strong> Filing a protest does not guarantee action. 
            The stewards will review the incident and may apply penalties ranging from time penalties 
            to grid penalties for future races, depending on the severity.
          </p>
        </div>

        {/* Actions */}
        <div className="flex gap-3 pt-2">
          <Button
            variant="secondary"
            onClick={handleClose}
            disabled={step === 'submitting'}
            className="flex-1"
          >
            Cancel
          </Button>
          <Button
            variant="primary"
            onClick={handleSubmit}
            disabled={step === 'submitting'}
            className="flex-1"
          >
            {step === 'submitting' ? 'Submitting...' : 'Submit Protest'}
          </Button>
        </div>
      </div>
    </Modal>
  );
}
