"use client"

import { useState } from "react"
import { useRouter } from "next/navigation"
import { api } from "@/lib/api"
import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/components/ui/card"
import { Button } from "@/components/ui/button"
import { HardDrive, AlertCircle } from "lucide-react"

export default function LoginPage() {
  const router = useRouter()
  const [username, setUsername] = useState("")
  const [password, setPassword] = useState("")
  const [error, setError] = useState<string | null>(null)
  const [loading, setLoading] = useState(false)

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
    setError(null)
    setLoading(true)

    try {
      await api.login(username, password)
      router.push("/")
    } catch (err) {
      const message =
        err instanceof Error ? err.message : "Login failed. Please check your credentials."
      setError(message)
    } finally {
      setLoading(false)
    }
  }

  return (
    <div className="min-h-screen flex items-center justify-center bg-gradient-to-br from-slate-900 to-slate-800 p-4">
      <div className="w-full max-w-md">
        {/* Logo */}
        <div className="flex items-center justify-center gap-3 mb-8">
          <HardDrive className="w-8 h-8 text-primary" />
          <h1 className="text-2xl font-bold text-white">ZMB Webui</h1>
        </div>

        {/* Login Card */}
        <Card>
          <CardHeader>
            <CardTitle>Sign In</CardTitle>
            <CardDescription>
              Enter your credentials to access the ZMB Webui
            </CardDescription>
          </CardHeader>
          <CardContent>
            <form onSubmit={handleSubmit} className="space-y-4">
              {/* Error Message */}
              {error && (
                <div className="p-3 bg-red-50 border border-red-200 rounded-md flex gap-3">
                  <AlertCircle className="w-5 h-5 text-red-600 flex-shrink-0 mt-0.5" />
                  <p className="text-sm text-red-800">{error}</p>
                </div>
              )}

              {/* Username Field */}
              <div className="space-y-2">
                <label htmlFor="username" className="text-sm font-medium">
                  Username
                </label>
                <input
                  id="username"
                  type="text"
                  value={username}
                  onChange={(e) => setUsername(e.target.value)}
                  placeholder="Username"
                  className="w-full px-3 py-2 border border-input rounded-md bg-background focus:outline-none focus:ring-2 focus:ring-ring"
                  disabled={loading}
                />
              </div>

              {/* Password Field */}
              <div className="space-y-2">
                <label htmlFor="password" className="text-sm font-medium">
                  Password
                </label>
                <input
                  id="password"
                  type="password"
                  value={password}
                  onChange={(e) => setPassword(e.target.value)}
                  placeholder="Enter your password"
                  className="w-full px-3 py-2 border border-input rounded-md bg-background focus:outline-none focus:ring-2 focus:ring-ring"
                  disabled={loading}
                />
              </div>

              {/* Submit Button */}
              <Button
                type="submit"
                className="w-full"
                disabled={loading || !username || !password}
              >
                {loading ? "Signing in..." : "Sign In"}
              </Button>
            </form>

            {/* Help Text */}
            <p className="text-xs text-muted-foreground text-center mt-4">
              Use your Samba credentials
            </p>
          </CardContent>
        </Card>

        {/* Footer */}
        <p className="text-center text-sm text-slate-400 mt-6">
          ZMB Webui v1.0.0
        </p>
      </div>
    </div>
  )
}