Audio-Classifier/frontend/app/login/page.tsx

"use client"

import { useState } from "react"
import { useRouter } from "next/navigation"
import { getApiUrl } from "@/lib/api"

export default function LoginPage() {
  const router = useRouter()
  const [email, setEmail] = useState("")
  const [password, setPassword] = useState("")
  const [error, setError] = useState("")
  const [isLoading, setIsLoading] = useState(false)

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

    try {
      const response = await fetch(`${getApiUrl()}/api/auth/login`, {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify({ email, password }),
      })

      if (!response.ok) {
        const data = await response.json()
        throw new Error(data.detail || "Login failed")
      }

      const data = await response.json()

      // Store token in localStorage
      localStorage.setItem("access_token", data.access_token)
      localStorage.setItem("user", JSON.stringify(data.user))

      // Redirect to home
      router.push("/")
    } catch (err) {
      setError(err instanceof Error ? err.message : "Login failed")
    } finally {
      setIsLoading(false)
    }
  }

  return (
    <div className="min-h-screen flex items-center justify-center bg-gradient-to-br from-gray-900 via-gray-800 to-gray-900">
      <div className="max-w-md w-full mx-4">
        <div className="bg-white rounded-lg shadow-2xl p-8">
          {/* Logo/Title */}
          <div className="text-center mb-8">
            <h1 className="text-3xl font-bold text-gray-900 mb-2">
              Audio Classifier
            </h1>
            <p className="text-gray-600">Sign in to continue</p>
          </div>

          {/* Error message */}
          {error && (
            <div className="mb-4 p-3 bg-red-50 border border-red-200 text-red-700 rounded-md text-sm">
              {error}
            </div>
          )}

          {/* Login form */}
          <form onSubmit={handleSubmit} className="space-y-6">
            <div>
              <label
                htmlFor="email"
                className="block text-sm font-medium text-gray-700 mb-1"
              >
                Email
              </label>
              <input
                id="email"
                type="email"
                required
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                className="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
                placeholder="admin@example.com"
                disabled={isLoading}
              />
            </div>

            <div>
              <label
                htmlFor="password"
                className="block text-sm font-medium text-gray-700 mb-1"
              >
                Password
              </label>
              <input
                id="password"
                type="password"
                required
                value={password}
                onChange={(e) => setPassword(e.target.value)}
                className="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
                placeholder="••••••••"
                disabled={isLoading}
              />
            </div>

            <button
              type="submit"
              disabled={isLoading}
              className="w-full bg-blue-600 hover:bg-blue-700 text-white font-medium py-2 px-4 rounded-md transition-colors disabled:bg-blue-400 disabled:cursor-not-allowed"
            >
              {isLoading ? "Signing in..." : "Sign in"}
            </button>
          </form>
        </div>

        {/* Footer */}
        <p className="text-center text-gray-400 text-sm mt-6">
          Audio Classifier v1.0.0
        </p>
      </div>
    </div>
  )
}