import React, { useState } from "react";
import { Input, InputValidators } from "../input";
import { SubTitle } from "../layout/sub-title";
import { getDefaultKubectlPath, UserStore } from "../../../common/user-store";
import { observer } from "mobx-react";
import { bundledKubectlPath } from "../../../main/kubectl";
import { SelectOption, Select } from "../select";
import { FormSwitch, Switcher } from "../switch";

export const KubectlBinaries = observer(() => {
  const userStore = UserStore.getInstance();
  const [downloadPath, setDownloadPath] = useState(userStore.downloadBinariesPath || "");
  const [binariesPath, setBinariesPath] = useState(userStore.kubectlBinariesPath || "");
  const pathValidator = downloadPath ? InputValidators.isPath : undefined;

  const downloadMirrorOptions: SelectOption<string>[] = [
    { value: "default", label: "Default (Google)" },
    { value: "china", label: "China (Azure)" },
  ];

  const save = () => {
    userStore.downloadBinariesPath = downloadPath;
    userStore.kubectlBinariesPath = binariesPath;
  };

  return (
    <>
      <section className="small">
        <SubTitle title="Kubectl binary download"/>
        <FormSwitch
          control={
            <Switcher
              checked={userStore.downloadKubectlBinaries}
              onChange={v => userStore.downloadKubectlBinaries = v.target.checked}
              name="kubectl-download"
            />
          }
          label="Download kubectl binaries matching the Kubernetes cluster version"
        />
      </section>

      <hr className="small"/>

      <section className="small">
        <SubTitle title="Download mirror" />
        <Select
          placeholder="Download mirror for kubectl"
          options={downloadMirrorOptions}
          value={userStore.downloadMirror}
          onChange={({ value }: SelectOption) => userStore.downloadMirror = value}
          disabled={!userStore.downloadKubectlBinaries}
          themeName="lens"
        />
      </section>

      <hr className="small"/>

      <section className="small">
        <SubTitle title="Directory for binaries" />
        <Input
          theme="round-black"
          value={userStore.downloadBinariesPath}
          placeholder={getDefaultKubectlPath()}
          asyncValidators={pathValidator}
          onChange={setDownloadPath}
          onBlur={save}
          disabled={!userStore.downloadKubectlBinaries}
        />
        <div className="hint">
          The directory to download binaries into.
        </div>
      </section>

      <hr className="small"/>

      <section className="small">
        <SubTitle title="Path to kubectl binary" />
        <Input
          theme="round-black"
          placeholder={bundledKubectlPath()}
          value={binariesPath}
          asyncValidators={pathValidator}
          onChange={setBinariesPath}
          onBlur={save}
          disabled={userStore.downloadKubectlBinaries}
        />
      </section>
    </>
  );
});
