// ─────────────────────────────────────────────────────────────
// Login Page
// ─────────────────────────────────────────────────────────────

'use client';

import { useState } from 'react';
import Link from 'next/link';
import { useRouter } from 'next/navigation';
import { Code2, Eye, EyeOff } from 'lucide-react';
import { authApi } from '../../../lib/api';
import { useAuthStore } from '../../../stores/authStore';

export default function LoginPage() {
  const router = useRouter();
  const { setAuth } = useAuthStore();
  const [email, setEmail] = useState('');
  const [password, setPassword] = useState('');
  const [showPassword, setShowPassword] = useState(false);
  const [error, setError] = useState('');
  const [isLoading, setIsLoading] = useState(false);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setError('');
    setIsLoading(true);

    try {
      const data = await authApi.login({ email, password }) as any;
      setAuth(data.user, data.tokens);
      router.push('/rooms');
    } catch (err: any) {
      setError(err.message || 'Login failed');
    } finally {
      setIsLoading(false);
    }
  };

  return (
    <div className="flex min-h-screen items-center justify-center px-4">
      <div className="w-full max-w-sm">
        {/* Logo */}
        <div className="mb-8 flex flex-col items-center">
          <Code2 className="h-10 w-10 text-editor-accent mb-3" />
          <h1 className="text-2xl font-bold">Welcome back</h1>
          <p className="mt-1 text-sm text-editor-text-muted">Sign in to your CodeSync account</p>
        </div>

        {/* Form */}
        <form onSubmit={handleSubmit} className="space-y-4">
          {error && (
            <div className="rounded-md bg-editor-error/10 border border-editor-error/30 px-3 py-2 text-sm text-editor-error">
              {error}
            </div>
          )}

          <div>
            <label className="block text-sm font-medium mb-1.5">Email</label>
            <input
              type="email"
              className="input-field w-full"
              placeholder="you@example.com"
              value={email}
              onChange={(e) => setEmail(e.target.value)}
              required
            />
          </div>

          <div>
            <label className="block text-sm font-medium mb-1.5">Password</label>
            <div className="relative">
              <input
                type={showPassword ? 'text' : 'password'}
                className="input-field w-full pr-10"
                placeholder="••••••••"
                value={password}
                onChange={(e) => setPassword(e.target.value)}
                required
              />
              <button
                type="button"
                className="absolute right-2 top-1/2 -translate-y-1/2 p-1 text-editor-text-muted hover:text-editor-text"
                onClick={() => setShowPassword(!showPassword)}
              >
                {showPassword ? <EyeOff className="h-4 w-4" /> : <Eye className="h-4 w-4" />}
              </button>
            </div>
          </div>

          <button
            type="submit"
            className="btn-primary w-full py-2.5"
            disabled={isLoading}
          >
            {isLoading ? 'Signing in...' : 'Sign In'}
          </button>
        </form>

        {/* Divider */}
        <div className="my-6 flex items-center gap-3">
          <div className="flex-1 border-t border-editor-border" />
          <span className="text-xs text-editor-text-muted">or</span>
          <div className="flex-1 border-t border-editor-border" />
        </div>

        {/* Google OAuth */}
        <button className="btn-secondary w-full flex items-center justify-center gap-2">
          <svg className="h-4 w-4" viewBox="0 0 24 24">
            <path fill="#4285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/>
            <path fill="#34A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/>
            <path fill="#FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/>
            <path fill="#EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/>
          </svg>
          Continue with Google
        </button>

        {/* Sign up link */}
        <p className="mt-6 text-center text-sm text-editor-text-muted">
          Don't have an account?{' '}
          <Link href="/register" className="text-editor-accent hover:underline">
            Sign up
          </Link>
        </p>
      </div>
    </div>
  );
}
