import * as React from 'react';
import { Messenger, messageHandler } from '@estruyf/vscode/dist/client';
import { DashboardMessage } from '../../DashboardMessage';
import { Settings } from '../../models/Settings';
import { Status } from '../../models/Status';
import { Step } from './Step';
import { useMemo, useState } from 'react';
import { Menu } from '@headlessui/react';
import { MenuItem } from '../Menu';
import { ContentFolder, Framework, StaticFolder, Template } from '../../../models';
import { ChevronDownIcon } from '@heroicons/react/outline';
import { FrameworkDetectors } from '../../../constants/FrameworkDetectors';
import { join } from 'path';
import useThemeColors from '../../hooks/useThemeColors';
import * as l10n from '@vscode/l10n';
import { LocalizationKey } from '../../../localization';
import { SelectItem } from './SelectItem';
import { Templates } from '../../../constants';

export interface IStepsToGetStartedProps {
  settings: Settings;
}

const Folder = ({
  wsFolder,
  folder,
  folders,
  addFolder
}: {
  wsFolder: string;
  folder: string;
  folders: ContentFolder[];
  addFolder: (folder: string) => void;
}) => {

  const isAdded = useMemo(
    () => folders.find((f) => f.path.toLowerCase() === join(wsFolder, folder).toLowerCase()),
    [folder, folders, wsFolder]
  );

  return (
    <SelectItem
      title={folder}
      buttonTitle={l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedButtonAddFolderTitle)}
      isSelected={!!isAdded}
      onClick={() => addFolder(folder)} />
  );
};

export const StepsToGetStarted: React.FunctionComponent<IStepsToGetStartedProps> = ({
  settings
}: React.PropsWithChildren<IStepsToGetStartedProps>) => {
  const [framework, setFramework] = useState<string | null>(null);
  const [taxImported, setTaxImported] = useState<boolean>(false);
  const [templates, setTemplates] = useState<Template[]>([]);
  const { getColors } = useThemeColors();

  const frameworks: Framework[] = FrameworkDetectors.map((detector: any) => detector.framework);

  const setFrameworkAndSendMessage = (framework: string) => {
    setFramework(framework);
    Messenger.send(DashboardMessage.setFramework, framework);
  };

  const addFolder = (folder: string) => {
    Messenger.send(DashboardMessage.addFolder, folder);
  };

  const addAssetFolder = (folder: string | StaticFolder) => {
    Messenger.send(DashboardMessage.addAssetsFolder, folder);
  }

  const triggerTemplate = (template: Template) => {
    messageHandler.request<boolean>(DashboardMessage.triggerTemplate, template).then((result) => {
      if (result) {
        reload();
      }
    });
  }

  const reload = () => {
    const crntState: any = Messenger.getState() || {};

    Messenger.setState({
      ...crntState,
      isWelcomeConfiguring: false
    });

    Messenger.send(DashboardMessage.reload);
  };

  const importTaxonomy = () => {
    Messenger.send(DashboardMessage.importTaxonomy);
    setTaxImported(true);
  };

  const crntTemplates = useMemo(() => {
    if (!templates || templates.length === 0 || !settings.crntFramework) {
      return [];
    }

    return templates.filter((t) => t.type === settings.crntFramework);
  }, [templates, settings.crntFramework])

  const steps = useMemo(() => (
    [
      {
        id: `welcome-init`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedInitializeProjectName),
        description: <>{l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedInitializeProjectDescription)}</>,
        show: true,
        status: settings.initialized ? Status.Completed : Status.NotStarted,
        onClick: settings.initialized
          ? undefined
          : () => {
            Messenger.send(DashboardMessage.initializeProject);
          }
      },
      {
        id: `welcome-framework`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedFrameworkName),
        description: (
          <div>
            <div>
              {l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedFrameworkDescription)}
            </div>

            <Menu as="div" className="relative inline-block text-left mt-4">
              <div>
                <Menu.Button className={`group flex justify-center p-2 rounded-md border ${getColors(
                  'text-vulcan-500 hover:text-vulcan-600 dark:text-whisper-500 dark:hover:text-whisper-600 border-vulcan-400 dark:border-white',
                  'text-[var(--vscode-tab-inactiveForeground)] hover:text-[var(--vscode-tab-activeForeground)]'
                )
                  }`}>
                  {framework ? framework : l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedFrameworkSelect)}
                  <ChevronDownIcon
                    className={`flex-shrink-0 -mr-1 ml-1 h-5 w-5 ${getColors(
                      'text-gray-400 group-hover:text-gray-500 dark:text-whisper-600 dark:group-hover:text-whisper-700',
                      ''
                    )
                      }`}
                    aria-hidden="true"
                  />
                </Menu.Button>
              </div>

              <Menu.Items
                className={`w-40 origin-top-left absolute left-0 z-10 mt-2 rounded-md shadow-2xl ring-1 ring-opacity-5 focus:outline-none text-sm max-h-96 overflow-auto ${getColors(
                  'bg-white dark:bg-vulcan-500 ring-vulcan-400 dark:ring-white',
                  'bg-[var(--vscode-sideBar-background)] ring-[var(--frontmatter-border)]'
                )
                  }`}
              >
                <div className="py-1">
                  <MenuItem
                    title={l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedFrameworkSelectOther)}
                    value={`other`}
                    isCurrent={!framework}
                    onClick={(value: string) => setFrameworkAndSendMessage(value)}
                  />

                  <hr className={`border-[var(--frontmatter-border)]`} />

                  {frameworks.map((f) => (
                    <MenuItem
                      key={f.name}
                      title={f.name}
                      value={f.name}
                      isCurrent={f.name === framework}
                      onClick={(value: string) => setFrameworkAndSendMessage(value)}
                    />
                  ))}
                </div>
              </Menu.Items>
            </Menu>
          </div>
        ),
        show: true,
        status: settings.crntFramework ? Status.Completed : Status.NotStarted,
        onClick: undefined
      },
      {
        id: `welcome-template`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedTemplateName),
        description: (
          <div className='mt-4'>
            <div className="text-sm">{l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedTemplateDescription)}</div>
            <div className="mt-1 space-y-1">
              {
                crntTemplates && (crntTemplates || []).map(template => (
                  <SelectItem
                    key={template.name.toLowerCase().replace(/ /g, '-')}
                    title={template.name}
                    icon='add'
                    buttonTitle={template.name}
                    isSelected={false}
                    onClick={() => triggerTemplate(template)} />
                ))
              }
            </div>
          </div>
        ),
        show: (crntTemplates || []).length > 0,
        status: Status.Active,
      },
      {
        id: `welcome-assets`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderName),
        description: (
          <div className='mt-4'>
            <div className="text-sm">{l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderDescription)}</div>
            <div className="mt-1 space-y-1">
              <SelectItem
                title={l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderPublicTitle)}
                buttonTitle={l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderPublicTitle)}
                isSelected={settings.staticFolder === "public"}
                onClick={() => addAssetFolder(`public`)} />

              <SelectItem
                title={l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderAssetsTitle)}
                buttonTitle={l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderAssetsTitle)}
                isSelected={settings.staticFolder === "src/assets"}
                onClick={() => addAssetFolder({
                  "path": "src/assets",
                  "relative": true
                })} />

              <p className='text-sm'>
                <b>{l10n.t(LocalizationKey.commonInformation)}</b>: {l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedAssetsFolderOtherDescription)}</p>
            </div>
          </div>
        ),
        show: settings.crntFramework === 'astro' || framework === 'astro',
        status: settings.initialized && settings.staticFolder && settings.staticFolder !== "/" ? Status.Completed : Status.NotStarted,
      },
      {
        id: `welcome-content-folders`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedContentFoldersName),
        description: (
          <>
            <p>
              {l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedContentFoldersDescription)}
            </p>

            {settings?.dashboardState?.welcome?.contentFolders?.length > 0 && (
              <div className="mt-4">
                <div className="text-sm">{l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedContentFoldersLabel)}</div>
                <div className="mt-1 space-y-1">
                  {settings?.dashboardState?.welcome?.contentFolders?.map((folder: string) => (
                    <Folder
                      key={folder}
                      folder={folder}
                      addFolder={addFolder}
                      wsFolder={settings.wsFolder}
                      folders={settings.contentFolders}
                    />
                  ))}
                </div>
              </div>
            )}

            <p className={`mt-4 ${getColors('text-vulcan-300 dark:text-gray-400', '')}`}>
              <b>{l10n.t(LocalizationKey.commonInformation)}</b>: {l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedContentFoldersInformationDescription)}.
            </p>
          </>
        ),
        show: true,
        status:
          settings.contentFolders && settings.contentFolders.length > 0
            ? Status.Completed
            : Status.NotStarted
      },
      {
        id: `welcome-import`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedTagsName),
        description: <>{l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedTagsDescription)}</>,
        show: true,
        status: taxImported ? Status.Completed : Status.NotStarted,
        onClick:
          settings.contentFolders && settings.contentFolders.length > 0 ? importTaxonomy : undefined
      },
      {
        id: `welcome-show-dashboard`,
        name: l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedShowDashboardName),
        description: <>{l10n.t(LocalizationKey.dashboardStepsStepsToGetStartedShowDashboardDescription)}</>,
        show: true,
        status:
          settings.initialized && settings.contentFolders && settings.contentFolders.length > 0
            ? Status.Active
            : Status.NotStarted,
        onClick:
          settings.initialized && settings.contentFolders && settings.contentFolders.length > 0
            ? reload
            : undefined
      }
    ]
  ), [settings, framework, taxImported, templates]);

  React.useEffect(() => {
    if (settings.crntFramework || settings.framework?.name) {
      setFramework(settings.crntFramework || settings.framework?.name || null);
    }
  }, [settings.crntFramework, settings.framework]);

  React.useEffect(() => {
    const fetchTemplates = async () => {
      try {
        const response = await fetch(Templates.url);

        if (response.ok) {
          const data = await response.json();
          setTemplates(data);
        }
      } catch (e) {
        setTemplates([]);
      }
    };

    fetchTemplates();
  }, []);

  return (
    <nav aria-label="Progress">
      <ol role="list">
        {steps.map((step, stepIdx) => (
          step.show && (
            <li
              key={step.id}
              className={`${stepIdx !== steps.length - 1 ? 'pb-10' : ''} relative`}
              data-test={step.id}
            >
              <Step
                name={step.name}
                description={step.description}
                status={step.status}
                showLine={stepIdx !== steps.length - 1}
                onClick={step.onClick}
              />
            </li>
          )
        ))}
      </ol>
    </nav>
  );
};