'use client'

import { useState } from 'react'
import { useRouter } from 'next/navigation'
import Link from 'next/link'
import { signIn } from '@/lib/auth-actions'
import { Button } from '@/components/ui/button'
import { Input} from '@/components/ui/input'
import { Label } from '@/components/ui/label'
import { createClient } from '@/lib/supabase/client'

export default function LoginPage() {
  const router = useRouter()
  const [email, setEmail] = useState('')
  const [password, setPassword] = useState('')
  const [error, setError] = useState('')
  const [loading, setLoading] = useState(false)

  async function handleEmailLogin(e: React.FormEvent) {
    e.preventDefault()
    setError('')
    setLoading(true)

    const result = await signIn(email, password)
    
    if (result.error) {
      setError(result.error)
      setLoading(false)
    } else {
      router.push('/dashboard')
      router.refresh()
    }
  }

  async function handleOAuthLogin(provider: 'github' | 'google') {
    const supabase = createClient()
    const { error } = await supabase.auth.signInWithOAuth({
      provider,
      options: {
        redirectTo: `${window.location.origin}/auth/callback`,
      },
    })
    if (error) {
      setError(error.message)
    }
  }

  return (
    <div className="min-h-screen bg-[var(--auth-bg)] flex items-center justify-center p-4">
      <div className="w-full max-w-md">
        <div className="border-t-2 border-[var(--auth-accent)] mb-12"></div>
        
        <div className="mb-12">
          <h1 className="text-4xl font-bold text-[var(--auth-accent)] font-mono mb-2">
            {'{'}<span className="text-white">hackerspace.sh</span>{'}'}
          </h1>
        </div>

        <div className="mb-8">
          <h2 className="text-sm font-mono text-gray-400 uppercase tracking-wider mb-6">
            Sign in to your space
          </h2>

          <form onSubmit={handleEmailLogin} className="space-y-4">
            <div>
              <Label htmlFor="email" className="text-sm text-gray-400 uppercase tracking-wide">Email</Label>
              <Input
                id="email"
                type="email"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                className="mt-2 bg-black/40 border-gray-800 text-white"
                required
              />
            </div>

            <div>
              <Label htmlFor="password" className="text-sm text-gray-400 uppercase tracking-wide">Password</Label>
              <Input
                id="password"
                type="password"
                value={password}
                onChange={(e) => setPassword(e.target.value)}
                className="mt-2 bg-black/40 border-gray-800 text-white"
                required
              />
            </div>

            {error && (
              <div className="text-sm text-red-400 bg-red-950/30 border border-red-900/30 rounded px-3 py-2">
                {error}
              </div>
            )}

            <Button 
              type="submit" 
              disabled={loading}
              className="w-full bg-[var(--auth-accent)] hover:bg-[var(--auth-accent)]/90 text-black font-semibold"
            >
              {loading ? 'Signing in...' : 'Sign in →'}
            </Button>
          </form>

          <div className="mt-6 flex items-center gap-4">
            <div className="flex-1 border-t border-gray-800"></div>
            <span className="text-xs text-gray-600 uppercase">or</span>
            <div className="flex-1 border-t border-gray-800"></div>
          </div>

          <div className="mt-6 space-y-3">
            <Button
              type="button"
              variant="outline"
              onClick={() => handleOAuthLogin('github')}
              className="w-full border-gray-800 bg-transparent text-white hover:bg-gray-900"
            >
              <svg className="mr-2 h-4 w-4" fill="currentColor" viewBox="0 0 24 24">
                <path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/>
              </svg>
              GitHub
            </Button>
            <Button
              type="button"
              variant="outline"
              onClick={() => handleOAuthLogin('google')}
              className="w-full border-gray-800 bg-transparent text-white hover:bg-gray-900"
            >
              <svg className="mr-2 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>
              Google
            </Button>
          </div>

          <div className="mt-8 text-center">
            <p className="text-sm text-gray-500">
              no account?{' '}
              <Link href="/auth/onboarding" className="text-[var(--auth-accent)] hover:underline">
                create or join a space →
              </Link>
            </p>
          </div>
        </div>
      </div>
    </div>
  )
}