'use client'

import { useState } from 'react'
import { useRouter } from 'next/navigation'
import axios from 'axios'
import { toast } from 'sonner'
import { Loader2, Eye, EyeOff, User, Lock, Building2 } from 'lucide-react'

export default function MemberLoginPage() {
  const router = useRouter()
  const [identifier, setIdentifier] = useState('')
  const [password, setPassword] = useState('')
  const [showPassword, setShowPassword] = useState(false)
  const [loading, setLoading] = useState(false)

  async function handleSubmit(e: React.FormEvent) {
    e.preventDefault()
    if (!identifier || !password) { toast.error('Please enter your member number/email and password'); return }
    setLoading(true)
    try {
      const res = await axios.post('/api/auth/member/login', { identifier, password })
      if (res.data.success) {
        toast.success('Welcome to the Member Portal!')
        router.push('/portal/dashboard')
      }
    } catch (err: any) {
      toast.error(err.response?.data?.error ?? 'Login failed')
    } finally {
      setLoading(false)
    }
  }

  return (
    <div className="min-h-screen bg-gradient-to-br from-brand-400 to-brand-500 flex items-center justify-center p-4">
      <div className="w-full max-w-md">
        <div className="text-center mb-8">
          <div className="inline-flex items-center justify-center w-16 h-16 bg-white/20 rounded-2xl mb-4">
            <Building2 className="w-8 h-8 text-white" />
          </div>
          <h1 className="text-3xl font-bold text-white">FinServe LMS</h1>
          <p className="text-blue-100 mt-1 text-sm">Member Portal</p>
        </div>

        <div className="bg-white rounded-2xl shadow-2xl p-8">
          <h2 className="text-xl font-semibold text-gray-900 mb-1">Welcome back</h2>
          <p className="text-sm text-gray-500 mb-6">Sign in to access your accounts and loans</p>

          <form onSubmit={handleSubmit} className="space-y-4">
            <div>
              <label className="block text-sm font-medium text-gray-700 mb-1.5">Member No. or Email</label>
              <div className="relative">
                <User className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400" />
                <input
                  type="text"
                  value={identifier}
                  onChange={e => setIdentifier(e.target.value)}
                  placeholder="e.g. MEM-0001 or email@example.com"
                  className="w-full pl-10 pr-4 py-2.5 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-400 focus:border-transparent transition"
                />
              </div>
            </div>

            <div>
              <label className="block text-sm font-medium text-gray-700 mb-1.5">Password</label>
              <div className="relative">
                <Lock className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400" />
                <input
                  type={showPassword ? 'text' : 'password'}
                  value={password}
                  onChange={e => setPassword(e.target.value)}
                  placeholder="••••••••"
                  className="w-full pl-10 pr-10 py-2.5 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-400 focus:border-transparent transition"
                />
                <button
                  type="button"
                  onClick={() => setShowPassword(!showPassword)}
                  className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-400 hover:text-gray-600"
                >
                  {showPassword ? <EyeOff className="w-4 h-4" /> : <Eye className="w-4 h-4" />}
                </button>
              </div>
            </div>

            <button
              type="submit"
              disabled={loading}
              className="w-full bg-brand-400 hover:bg-brand-500 text-white font-medium py-2.5 px-4 rounded-lg transition-colors flex items-center justify-center gap-2 mt-2"
            >
              {loading ? <><Loader2 className="w-4 h-4 animate-spin" /> Signing in...</> : 'Sign in'}
            </button>
          </form>

          <p className="text-center text-xs text-gray-400 mt-6">
            Need help? Contact your branch or loan officer.
          </p>
        </div>

        <p className="text-center text-blue-100 text-xs mt-6">
          &copy; {new Date().getFullYear()} FinServe LMS &middot; Member Portal
        </p>
      </div>
    </div>
  )
}