/** This component is intentionally separate from SoftwareInstallDetailsModal
 * because it handles script-only package installs (e.g. sh_packages or ps1_packages)
 *
 * Key differences from SoftwareInstallDetailsModal:
 * - Uses Script/Run/Rerun language in UI instead of Install/Retry.
 * - Omits current versions section (no InventoryVersions display).
 * - Omits post-install script output.
 *
 * Keeping these components and its tests separate improves maintainability and clarity
 */

import React, { useState } from "react";
import { useQuery } from "react-query";
import { formatDistanceToNow } from "date-fns";
import { AxiosError } from "axios";

import { DEFAULT_USE_QUERY_OPTIONS } from "utilities/constants";

import {
  IHostSoftware,
  ISoftwareScriptResult,
  ISoftwareInstallResults,
} from "interfaces/software";
import softwareAPI from "services/entities/software";
import deviceUserAPI from "services/entities/device_user";

import Modal from "components/Modal";
import ModalFooter from "components/ModalFooter";
import Button from "components/buttons/Button";
import IconStatusMessage from "components/IconStatusMessage";
import Textarea from "components/Textarea";
import DataError from "components/DataError/DataError";
import DeviceUserError from "components/DeviceUserError";
import Spinner from "components/Spinner/Spinner";
import RevealButton from "components/buttons/RevealButton";
import CustomLink from "components/CustomLink";

import {
  SCRIPT_DETAILS_STATUS_ICONS,
  getScriptDetailsStatusPredicate,
} from "../constants";

const baseClass = "software-script-details-modal";

export type IPackageInstallDetails = {
  host_display_name?: string;
  install_uuid?: string; // not actually optional
};

export const renderContactOption = (url?: string) => (
  <>
    {" "}
    or{" "}
    {url ? (
      <CustomLink url={url} text="contact your IT admin" newTab />
    ) : (
      "contact your IT admin"
    )}
  </>
);

interface IInstallStatusMessage {
  installResult: ISoftwareScriptResult;
  isMyDevicePage: boolean;
  contactUrl?: string;
}

export const StatusMessage = ({
  installResult,
  isMyDevicePage,
  contactUrl,
}: IInstallStatusMessage) => {
  const {
    host_display_name,
    software_package,
    software_title,
    status,
    updated_at,
    created_at,
  } = installResult;

  const formattedHost = host_display_name ? (
    <b>{host_display_name}</b>
  ) : (
    "the host"
  );

  const displayTimeStamp = ["failed_install", "installed"].includes(
    status || ""
  )
    ? ` (${formatDistanceToNow(new Date(updated_at || created_at), {
        includeSeconds: true,
        addSuffix: true,
      })})`
    : "";

  const renderStatusCopy = () => {
    const prefix = (
      <>
        Fleet {getScriptDetailsStatusPredicate(status)} <b>{software_title}</b>
      </>
    );

    const middle = isMyDevicePage ? (
      <>
        {" "}
        {displayTimeStamp}
        {status === "failed_install" && (
          <>. You can rerun{renderContactOption(contactUrl)}</>
        )}
      </>
    ) : (
      <>
        {" "}
        ({software_package}) on {formattedHost}
        {status === "pending_install"
          ? " when it comes online"
          : displayTimeStamp}
      </>
    );
    return (
      <span>
        {prefix}
        {middle}
        {"."}
      </span>
    );
  };

  return (
    <IconStatusMessage
      className={`${baseClass}__status-message`}
      iconName={
        SCRIPT_DETAILS_STATUS_ICONS[status || "pending_install"] ??
        "pending-outline"
      }
      message={renderStatusCopy()}
    />
  );
};

interface IModalButtonsProps {
  deviceAuthToken?: string;
  installResultStatus?: string;
  hostSoftwareId?: number;
  onRerun?: (id: number, isScriptPackage: boolean) => void;
  onCancel: () => void;
}

export const ModalButtons = ({
  deviceAuthToken,
  installResultStatus,
  hostSoftwareId,
  onRerun,
  onCancel,
}: IModalButtonsProps) => {
  if (!!deviceAuthToken && installResultStatus === "failed_install") {
    const onClickRerun = () => {
      // on My Device Page, where this is relevant, both will be defined
      if (onRerun && hostSoftwareId) {
        onRerun(hostSoftwareId, true); // isScriptPackage defined for copy changes
      }
      onCancel();
    };

    return (
      <ModalFooter
        primaryButtons={
          <>
            <Button variant="inverse" onClick={onCancel}>
              Cancel
            </Button>
            <Button type="submit" onClick={onClickRerun}>
              Rerun
            </Button>
          </>
        }
      />
    );
  }

  return (
    <ModalFooter primaryButtons={<Button onClick={onCancel}>Close</Button>} />
  );
};

interface ISoftwareInstallDetailsProps {
  details: IPackageInstallDetails;
  hostSoftware?: IHostSoftware; // for software name when not Fleet installed (not present on activity feeds)
  deviceAuthToken?: string; // My Device Page only
  onCancel: () => void;
  onRerun?: (id: number, isScriptPackage?: boolean) => void; // My Device Page only
  contactUrl?: string; // My Device Page only
}

export const SoftwareScriptDetailsModal = ({
  details: detailsFromProps,
  onCancel,
  hostSoftware,
  deviceAuthToken,
  onRerun,
  contactUrl,
}: ISoftwareInstallDetailsProps) => {
  // will always be present
  const installUUID = detailsFromProps.install_uuid ?? "";

  const [showInstallDetails, setShowInstallDetails] = useState(false);
  const toggleInstallDetails = () => {
    setShowInstallDetails((prev) => !prev);
  };

  const { data: swInstallResult, isLoading, isError, error } = useQuery<
    ISoftwareInstallResults,
    AxiosError,
    ISoftwareScriptResult
  >(
    ["softwareInstallResults", installUUID],
    () => {
      return deviceAuthToken
        ? deviceUserAPI.getSoftwareInstallResult(deviceAuthToken, installUUID)
        : softwareAPI.getSoftwareInstallResult(installUUID);
    },
    {
      ...DEFAULT_USE_QUERY_OPTIONS,
      staleTime: 3000,
      select: (data) => data.results as ISoftwareScriptResult,
    }
  );

  const renderScriptDetailsSection = () => {
    // Only show details button if there's details to display
    const showDetailsButton =
      swInstallResult?.status !== "pending_install" && swInstallResult?.output;

    return (
      <>
        {showDetailsButton && (
          <RevealButton
            isShowing={showInstallDetails}
            showText="Details"
            hideText="Details"
            caretPosition="after"
            onClick={toggleInstallDetails}
          />
        )}
        {showInstallDetails && swInstallResult?.output && (
          <Textarea label="Script output:" variant="code">
            {swInstallResult.output}
          </Textarea>
        )}
      </>
    );
  };

  const hostDisplayname =
    swInstallResult?.host_display_name || detailsFromProps.host_display_name;

  const installResultWithHostDisplayName = swInstallResult
    ? {
        ...swInstallResult,
        host_display_name: hostDisplayname,
      }
    : undefined;

  const renderContent = () => {
    if (isLoading) {
      return <Spinner />;
    }

    if (isError) {
      if (error?.status === 404) {
        return deviceAuthToken ? (
          <DeviceUserError />
        ) : (
          <DataError
            description="Couldn't get script details"
            excludeIssueLink
          />
        );
      }

      if (error?.status === 401) {
        return deviceAuthToken ? (
          <DeviceUserError />
        ) : (
          <DataError description="Close this modal and try again." />
        );
      }
    }

    if (!installResultWithHostDisplayName) {
      return deviceAuthToken ? (
        <DeviceUserError />
      ) : (
        <DataError description="No data returned." />
      );
    }

    if (
      !["installed", "pending_install", "failed_install"].includes(
        installResultWithHostDisplayName.status
      )
    ) {
      return (
        <DataError
          description={`Unexpected software install status ${installResultWithHostDisplayName.status}`}
        />
      );
    }

    return (
      <div className={`${baseClass}__modal-content`}>
        <StatusMessage
          installResult={installResultWithHostDisplayName}
          isMyDevicePage={!!deviceAuthToken}
          contactUrl={contactUrl}
        />
        {renderScriptDetailsSection()}
      </div>
    );
  };

  return (
    <Modal
      title="Script details"
      onExit={onCancel}
      onEnter={onCancel}
      className={baseClass}
    >
      {renderContent()}
      <ModalButtons
        deviceAuthToken={deviceAuthToken}
        installResultStatus={swInstallResult?.status}
        hostSoftwareId={hostSoftware?.id}
        onRerun={onRerun}
        onCancel={onCancel}
      />
    </Modal>
  );
};

export default SoftwareScriptDetailsModal;