import { action, autorun } from "mobx";
import { dockStore, IDockTab, TabId, TabKind } from "./dock.store";
import { DockTabStore } from "./dock-tab.store";
import { t } from "@lingui/macro";
import { HelmChart, helmChartsApi } from "../../api/endpoints/helm-charts.api";
import { IReleaseUpdateDetails } from "../../api/endpoints/helm-releases.api";
import { _i18n } from "../../i18n";

export interface IChartInstallData {
  name: string;
  repo: string;
  version: string;
  values?: string;
  releaseName?: string;
  description?: string;
  namespace?: string;
  lastVersion?: boolean;
}

export class InstallChartStore extends DockTabStore<IChartInstallData> {
  public versions = new DockTabStore<string[]>();
  public details = new DockTabStore<IReleaseUpdateDetails>();

  constructor() {
    super({
      storageName: "install_charts"
    });
    autorun(() => {
      const { selectedTab, isOpen } = dockStore;
      if (!isInstallChartTab(selectedTab)) return;
      if (isOpen) {
        this.loadData();
      }
    }, { delay: 250 })
  }

  @action
  async loadData(tabId = dockStore.selectedTabId) {
    const { values } = this.getData(tabId);
    const versions = this.versions.getData(tabId);
    return Promise.all([
      !versions && this.loadVersions(tabId),
      !values && this.loadValues(tabId),
    ])
  }

  @action
  async loadVersions(tabId: TabId) {
    const { repo, name } = this.getData(tabId);
    this.versions.clearData(tabId); // reset
    const charts = await helmChartsApi.get(repo, name);
    const versions = charts.versions.map(chartVersion => chartVersion.version);
    this.versions.setData(tabId, versions);
  }

  @action
  async loadValues(tabId: TabId) {
    const data = this.getData(tabId);
    const { repo, name, version } = data;
    let values = "";
    const fetchValues = async (retry = 1, maxRetries = 3) => {
      values = await helmChartsApi.getValues(repo, name, version);
      if (values || retry == maxRetries) return;
      await fetchValues(retry + 1);
    };
    this.setData(tabId, { ...data, values: undefined }); // reset
    await fetchValues();
    this.setData(tabId, { ...data, values });
  }
}

export const installChartStore = new InstallChartStore();

export function createInstallChartTab(chart: HelmChart, tabParams: Partial<IDockTab> = {}) {
  const { name, repo, version } = chart;

  const tab = dockStore.createTab({
    kind: TabKind.INSTALL_CHART,
    title: _i18n._(t`Helm Install: ${repo}/${name}`),
    ...tabParams
  }, false);

  installChartStore.setData(tab.id, {
    name,
    repo,
    version,
    namespace: "default",
    releaseName: "",
    description: "",
  });

  return tab;
}

export function isInstallChartTab(tab: IDockTab) {
  return tab && tab.kind === TabKind.INSTALL_CHART;
}