'use client';

import { useState } from 'react';
import { useRouter } from 'next/navigation';
import { Wrench, Eye, EyeOff, Loader2 } from 'lucide-react';
import { authService } from '@/services/api/authService';
import { toast } from 'sonner';

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

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    if (!email || !password) {
      toast.error('Enter your email and password');
      return;
    }

    setLoading(true);
    try {
      await authService.login({ email, password });
      toast.success('Signed in successfully');
      router.push('/dashboard');
    } catch (err: unknown) {
      const message = err instanceof Error ? err.message : 'Login failed';
      toast.error(message);
    } finally {
      setLoading(false);
    }
  };

  return (
    <div className="min-h-screen flex items-center justify-center px-4 bg-background">
      <div className="w-full max-w-[420px]">
        {/* Logo */}
        <div className="flex flex-col items-center mb-8">
          <div className="w-14 h-14 rounded-2xl flex items-center justify-center mb-4 bg-primary">
            <Wrench className="w-7 h-7 text-white" />
          </div>
          <h1 className="text-2xl font-bold text-foreground">
            iFixKart
          </h1>
          <p className="text-sm mt-1 text-muted-foreground">
            Enterprise ERP Platform
          </p>
        </div>

        {/* Login Card */}
        <div className="bg-card rounded-[5px] shadow-sm border border-border p-5 sm:p-8">
          <h2 className="text-lg font-bold mb-1 text-foreground">
            Sign In
          </h2>
          <p className="text-xs mb-6 text-muted-foreground">
            Enter your credentials to access the admin panel
          </p>

          <form onSubmit={handleSubmit} className="flex flex-col gap-4">
            {/* Email */}
            <div className="flex flex-col gap-1.5">
              <label htmlFor="email" className="text-xs font-semibold text-foreground">
                Email Address
              </label>
              <input
                id="email"
                type="email"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                placeholder="admin@ifixkart.com"
                className="w-full px-3.5 py-2.5 rounded-lg border border-border bg-muted text-sm text-foreground outline-hidden transition-colors focus:ring-2 focus:ring-primary/20 focus:border-primary"
                autoComplete="email"
              />
            </div>

            {/* Password */}
            <div className="flex flex-col gap-1.5">
              <label htmlFor="password" className="text-xs font-semibold text-foreground">
                Password
              </label>
              <div className="relative">
                <input
                  id="password"
                  type={showPassword ? 'text' : 'password'}
                  value={password}
                  onChange={(e) => setPassword(e.target.value)}
                  placeholder="Enter your password"
                  className="w-full px-3.5 py-2.5 rounded-lg border border-border bg-muted text-sm text-foreground outline-hidden transition-colors focus:ring-2 focus:ring-primary/20 focus:border-primary pr-10"
                  autoComplete="current-password"
                />
                <button
                  type="button"
                  onClick={() => setShowPassword(!showPassword)}
                  className="absolute right-3 top-1/2 -translate-y-1/2 cursor-pointer text-muted-foreground"
                  tabIndex={-1}
                >
                  {showPassword ? (
                    <EyeOff className="w-4 h-4" />
                  ) : (
                    <Eye className="w-4 h-4" />
                  )}
                </button>
              </div>
            </div>

            {/* Submit */}
            <button
              type="submit"
              disabled={loading}
              className="w-full py-2.5 rounded-lg text-sm font-semibold text-white bg-primary cursor-pointer transition-opacity disabled:opacity-70 flex items-center justify-center gap-2 min-h-[44px] mt-2"
            >
              {loading ? (
                <>
                  <Loader2 className="w-4 h-4 animate-spin" />
                  <span>Signing in...</span>
                </>
              ) : (
                <span>Sign In</span>
              )}
            </button>
          </form>
        </div>

        <p className="text-center text-[11px] mt-6 text-muted-foreground">
          © 2026 iFixKart. All rights reserved.
        </p>
      </div>
    </div>
  );
}