import { ActionFunctionArgs, Form, redirect, useActionData } from "react-router-dom";
import { useState } from "react";

import GridBackground from "@components/GridBackground";
import Container from "@components/Container";
import { Button } from "@components/Button";
import LogoBlueIcon from "@/assets/logo-blue.png";
import LogoWhiteIcon from "@/assets/logo-white.svg";
import { DEVICE_API } from "@/ui.config";

import { GridCard } from "../components/Card";
import { cx } from "../cva.config";
import api from "../api";

import { DeviceStatus } from "./welcome-local";


const loader = async () => {
  const res = await api
    .GET(`${DEVICE_API}/device/status`)
    .then(res => res.json() as Promise<DeviceStatus>);

  if (res.isSetup) return redirect("/login-local");
  return null;
};

const action = async ({ request }: ActionFunctionArgs) => {
  const formData = await request.formData();
  const localAuthMode = formData.get("localAuthMode");
  if (!localAuthMode) return { error: "Please select an authentication mode" };

  if (localAuthMode === "password") {
    return redirect("/welcome/password");
  }

  if (localAuthMode === "noPassword") {
    try {
      await api.POST(`${DEVICE_API}/device/setup`, {
        localAuthMode,
      });
      return redirect("/");
    } catch (error) {
      console.error("Error setting authentication mode:", error);
      return { error: "An error occurred while setting the authentication mode" };
    }
  }

  return { error: "Invalid authentication mode" };
};

export default function WelcomeLocalModeRoute() {
  const actionData = useActionData() as { error?: string };
  const [selectedMode, setSelectedMode] = useState<"password" | "noPassword" | null>(
    null,
  );

  return (
    <>
      <GridBackground />
      <div className="grid min-h-screen">
        <Container>
          <div className="flex items-center justify-center w-full h-full isolate">
            <div className="max-w-xl space-y-8">
              <div className="flex items-center justify-center animate-fadeIn">
                <img src={LogoWhiteIcon} alt="" className="-ml-4 h-[32px] hidden dark:block" />
                <img src={LogoBlueIcon} alt="" className="-ml-4 h-[32px] dark:hidden" />
              </div>

              <div
                className="space-y-2 text-center animate-fadeIn"
                style={{ animationDelay: "200ms" }}
              >
                <h1 className="text-4xl font-semibold text-black dark:text-white">Local Authentication Method</h1>
                <p className="font-medium text-slate-600 dark:text-slate-400">
                  Select how you{"'"}d like to secure your JetKVM device locally.
                </p>
              </div>

              <Form method="POST" className="space-y-8">
                <div
                  className="grid grid-cols-1 gap-6 animate-fadeIn sm:grid-cols-2"
                  style={{ animationDelay: "400ms" }}
                >
                  {["password", "noPassword"].map(mode => (
                    <GridCard
                      key={mode}
                      cardClassName={cx("transition-all duration-100", {
                        "!outline-blue-700 !outline-2": selectedMode === mode,
                        "hover:!outline-blue-700": selectedMode !== mode,
                      })}
                    >
                      <div
                        className="relative flex flex-col items-center p-6 cursor-pointer select-none"
                        onClick={() => setSelectedMode(mode as "password" | "noPassword")}
                      >
                        <div className="space-y-0 text-center">
                          <h3 className="text-base font-bold text-black dark:text-white">
                            {mode === "password" ? "Password protected" : "No Password"}
                          </h3>
                          <p className="mt-2 text-sm text-center text-gray-600 dark:text-gray-400">
                            {mode === "password"
                              ? "Secure your device with a password for added protection."
                              : "Quick access without password authentication."}
                          </p>
                        </div>
                        <input
                          type="radio"
                          name="localAuthMode"
                          value={mode}
                          checked={selectedMode === mode}
                          onChange={() => {
                            setSelectedMode(mode as "password" | "noPassword");
                          }}
                          className="absolute w-4 h-4 text-blue-600 right-2 top-2"
                        />
                      </div>
                    </GridCard>
                  ))}
                </div>

                {actionData?.error && (
                  <p
                    className="text-sm text-center text-red-600 dark:text-red-400 animate-fadeIn"
                    style={{ animationDelay: "500ms" }}
                  >
                    {actionData.error}
                  </p>
                )}

                <div
                  className="max-w-sm mx-auto animate-fadeIn"
                  style={{ animationDelay: "500ms" }}
                >
                  <Button
                    size="LG"
                    theme="primary"
                    fullWidth
                    type="submit"
                    text="Continue"
                    textAlign="center"
                    disabled={!selectedMode}
                  />
                </div>
              </Form>

              <p
                className="max-w-md mx-auto text-xs text-center animate-fadeIn text-slate-500 dark:text-slate-400"
                style={{ animationDelay: "600ms" }}
              >
                You can always change your authentication method later in the settings.
              </p>
            </div>
          </div>
        </Container>
      </div>
    </>
  );
}

WelcomeLocalModeRoute.action = action;
WelcomeLocalModeRoute.loader = loader;