import React from "react"
import {
    useLoaderData,
    useNavigate,
    redirect,
    Form
} from "react-router-dom"
import { loginUser } from "../api"

export function loader({ request }) {
    return new URL(request.url).searchParams.get("message")
}

/**
 * Challenge: Pull in the formData from our Form
 * For now, just log the data to the console.
 */

export async function action() {
    console.log("Action function")
    return null
}

export default function Login() {
    const [loginFormData, setLoginFormData] = React.useState({ email: "", password: "" })
    const [status, setStatus] = React.useState("idle")
    const [error, setError] = React.useState(null)
    const message = useLoaderData()
    const navigate = useNavigate()

    function handleSubmit(e) {
        e.preventDefault()
        setStatus("submitting")
        setError(null)
        loginUser(loginFormData)
            .then(data => {
                navigate("/host", { replace: true })
            })
            .catch(err => setError(err))
            .finally(() => setStatus("idle"))
    }

    function handleChange(e) {
        const { name, value } = e.target
        setLoginFormData(prev => ({
            ...prev,
            [name]: value
        }))
    }

    return (
        <div className="login-container">
            <h1>Sign in to your account</h1>
            {message && <h3 className="red">{message}</h3>}
            {error && <h3 className="red">{error.message}</h3>}

            <Form method="post" className="login-form">
                <input
                    name="email"
                    onChange={handleChange}
                    type="email"
                    placeholder="Email address"
                    value={loginFormData.email}
                />
                <input
                    name="password"
                    onChange={handleChange}
                    type="password"
                    placeholder="Password"
                    value={loginFormData.password}
                />
                <button
                    disabled={status === "submitting"}
                >
                    {status === "submitting"
                        ? "Logging in..."
                        : "Log in"
                    }
                </button>
            </Form>
        </div>
    )
}