import * as appstate from '../../appstate.js';
import { appRouter } from '../../router.js';
import { viewHostCss } from '../shared/css.js';

import {
  DeesElement,
  customElement,
  html,
  state,
  css,
  cssManager,
  type TemplateResult,
} from '@design.estate/dees-element';

// Side-effect imports register the subview custom elements
import './ops-view-security-overview.js';
import './ops-view-security-blocked.js';
import './ops-view-security-authentication.js';
import './ops-view-security-emailsecurity.js';

declare global {
  interface HTMLElementTagNameMap {
    'ops-view-security': OpsViewSecurity;
  }
}

type TSecurityTab = 'overview' | 'blocked' | 'authentication' | 'emailsecurity';

@customElement('ops-view-security')
export class OpsViewSecurity extends DeesElement {
  @state()
  accessor selectedTab: TSecurityTab = 'overview';

  private tabLabelMap: Record<TSecurityTab, string> = {
    'overview':       'Overview',
    'blocked':        'Blocked IPs',
    'authentication': 'Authentication',
    'emailsecurity':  'Email Security',
  };

  private labelToTab: Record<string, TSecurityTab> = {
    'Overview':       'overview',
    'Blocked IPs':    'blocked',
    'Authentication': 'authentication',
    'Email Security': 'emailsecurity',
  };

  private static isSecurityTab(s: string | null): s is TSecurityTab {
    return s === 'overview' || s === 'blocked' || s === 'authentication' || s === 'emailsecurity';
  }

  constructor() {
    super();
    // Read initial subview from state (URL-driven)
    const initialState = appstate.uiStatePart.getState()!;
    if (OpsViewSecurity.isSecurityTab(initialState.activeSubview)) {
      this.selectedTab = initialState.activeSubview;
    }
    // Subscribe to future changes (back/forward navigation, direct URL entry)
    const sub = appstate.uiStatePart.select((s) => s.activeSubview).subscribe((sub) => {
      if (OpsViewSecurity.isSecurityTab(sub) && sub !== this.selectedTab) {
        this.selectedTab = sub;
      }
    });
    this.rxSubscriptions.push(sub);
  }

  async firstUpdated() {
    const toggle = this.shadowRoot!.querySelector('dees-input-multitoggle') as any;
    if (toggle) {
      const sub = toggle.changeSubject.subscribe(() => {
        const tab = this.labelToTab[toggle.selectedOption];
        if (tab && tab !== this.selectedTab) {
          // Push URL → router updates state → subscription updates selectedTab
          appRouter.navigateToView('security', tab);
        }
      });
      this.rxSubscriptions.push(sub);
    }
  }

  public static styles = [
    cssManager.defaultStyles,
    viewHostCss,
    css`
      dees-input-multitoggle {
        margin-bottom: 24px;
      }
    `,
  ];

  public render(): TemplateResult {
    return html`
      <dees-heading level="2">Security</dees-heading>

      <dees-input-multitoggle
        .type=${'single'}
        .options=${['Overview', 'Blocked IPs', 'Authentication', 'Email Security']}
        .selectedOption=${this.tabLabelMap[this.selectedTab]}
      ></dees-input-multitoggle>

      ${this.renderTabContent()}
    `;
  }

  private renderTabContent(): TemplateResult {
    switch (this.selectedTab) {
      case 'overview':       return html`<ops-view-security-overview></ops-view-security-overview>`;
      case 'blocked':        return html`<ops-view-security-blocked></ops-view-security-blocked>`;
      case 'authentication': return html`<ops-view-security-authentication></ops-view-security-authentication>`;
      case 'emailsecurity':  return html`<ops-view-security-emailsecurity></ops-view-security-emailsecurity>`;
    }
  }
}