import type { APIErrorResponse, PackerConfig, ServerConfig } from "@/types/memshell";
import type { ProbeShellGenerateResponse, ProbeShellResult } from "@/types/probeshell";

import { useQuery } from "@tanstack/react-query";
import { HomeLayout } from "fumadocs-ui/layouts/home";
import { LoaderCircle, WandSparklesIcon } from "lucide-react";
import { useRef, useState } from "react";
import { useForm } from "react-hook-form";
import { useTranslation } from "react-i18next";
import { toast } from "sonner";

import MainConfigCard from "@/components/probeshell/main-config-card";
import PackageConfigCard from "@/components/probeshell/package-config-card";
import ShellResult from "@/components/probeshell/shell-result";
import { Button } from "@/components/ui/button";
import { env } from "@/config";
import { siteConfig } from "@/lib/config";
import {
  type ProbeShellFormSchema,
  probeShellFormSchema,
  useYupValidationProbeResolver,
} from "@/types/schema";
import { transformToProbePostData } from "@/utils/transformer";

import { baseOptions } from "../lib/layout.shared";

export default function ProbeShellGenerator() {
  const { data: serverConfig } = useQuery<ServerConfig>({
    queryKey: ["serverConfig"],
    queryFn: async () => {
      const response = await fetch(`${env.API_URL}/api/config/servers`);
      return await response.json();
    },
  });

  const { data: packerConfig } = useQuery<PackerConfig>({
    queryKey: ["packerConfig"],
    queryFn: async () => {
      const response = await fetch(`${env.API_URL}/api/config/packers`);
      return await response.json();
    },
  });

  const { t } = useTranslation(["common", "probeshell"]);

  const form = useForm<ProbeShellFormSchema>({
    resolver: useYupValidationProbeResolver(probeShellFormSchema, t),
    defaultValues: {
      probeMethod: "ResponseBody",
      probeContent: "Command",
      host: "",
      server: "Tomcat",
      reqParamName: "",
      seconds: 5,
      sleepServer: "Tomcat",
      shrink: true,
      staticInitialize: true,
    },
  });

  const [packResult, setPackResult] = useState<string | undefined>();
  const [allPackResults, setAllPackResults] = useState<Map<string, string> | undefined>();
  const [generateResult, setGenerateResult] = useState<ProbeShellResult>();
  const [packMethod, setPackMethod] = useState<string>("");
  const submitLockRef = useRef(false);

  const onSubmit = async (data: ProbeShellFormSchema) => {
    if (submitLockRef.current) return;
    submitLockRef.current = true;

    try {
      const postData = transformToProbePostData(data);
      const response = await fetch(`${env.API_URL}/api/probe/generate`, {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(postData),
      });

      if (!response.ok) {
        const json: APIErrorResponse = await response.json();
        toast.error(t("toast.generateError", { error: json.error }));
        return;
      }

      const result = (await response.json()) as ProbeShellGenerateResponse;
      setGenerateResult(result.probeShellResult);
      setPackResult(result.packResult);
      setAllPackResults(result.allPackResults);
      setPackMethod(data.packingMethod);
      toast.success(t("toast.generateSuccess"));
    } catch (error) {
      toast.error(t("toast.generateError", { error: (error as Error).message }));
    } finally {
      submitLockRef.current = false;
    }
  };
  return (
    <HomeLayout {...baseOptions()} links={siteConfig.navLinks}>
      <div className="max-w-8xl container mx-auto p-6">
        <form onSubmit={form.handleSubmit(onSubmit)} className="flex flex-col gap-6 xl:flex-row">
          <div className="flex w-full flex-col gap-2 xl:w-1/2">
            <MainConfigCard form={form} servers={serverConfig} />
            <PackageConfigCard form={form} packerConfig={packerConfig} />
            <Button className="w-full" type="submit" disabled={form.formState.isSubmitting}>
              {form.formState.isSubmitting ? (
                <LoaderCircle className="animate-spin" />
              ) : (
                <WandSparklesIcon />
              )}
              {t("probeshell:buttons.generate")}
            </Button>
          </div>
          <div className="flex w-full flex-col gap-2 xl:w-1/2">
            <ShellResult
              packMethod={packMethod}
              generateResult={generateResult}
              packResult={packResult}
              allPackResults={allPackResults}
            />
          </div>
        </form>
      </div>
    </HomeLayout>
  );
}