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

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

@customElement('ops-view-users')
export class OpsViewUsers extends DeesElement {
  @state() accessor usersState: appstate.IUsersState = {
    users: [],
    isLoading: false,
    error: null,
    lastUpdated: 0,
  };

  @state() accessor loginState: appstate.ILoginState = {
    identity: null,
    isLoggedIn: false,
  };

  constructor() {
    super();
    const usersSub = appstate.usersStatePart
      .select((s) => s)
      .subscribe((usersState) => {
        this.usersState = usersState;
      });
    this.rxSubscriptions.push(usersSub);

    const loginSub = appstate.loginStatePart
      .select((s) => s)
      .subscribe((loginState) => {
        this.loginState = loginState;
        // Re-fetch users when user logs in (fixes race condition where
        // the view is created before authentication completes)
        if (loginState.isLoggedIn) {
          appstate.usersStatePart.dispatchAction(appstate.fetchUsersAction, null);
        }
      });
    this.rxSubscriptions.push(loginSub);
  }

  public static styles = [
    cssManager.defaultStyles,
    viewHostCss,
    css`
      .usersContainer {
        display: flex;
        flex-direction: column;
        gap: 24px;
      }

      .roleBadge {
        display: inline-flex;
        align-items: center;
        padding: 3px 10px;
        border-radius: 12px;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.02em;
        text-transform: uppercase;
      }

      .roleBadge.admin {
        background: ${cssManager.bdTheme('#fef3c7', '#451a03')};
        color: ${cssManager.bdTheme('#92400e', '#fbbf24')};
      }

      .roleBadge.user {
        background: ${cssManager.bdTheme('#e0f2fe', '#0c4a6e')};
        color: ${cssManager.bdTheme('#075985', '#7dd3fc')};
      }

      .sessionBadge {
        display: inline-flex;
        align-items: center;
        padding: 3px 10px;
        border-radius: 12px;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.02em;
        text-transform: uppercase;
        background: ${cssManager.bdTheme('#dcfce7', '#14532d')};
        color: ${cssManager.bdTheme('#166534', '#4ade80')};
      }

      .userIdCell {
        font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
        font-size: 11px;
        color: ${cssManager.bdTheme('#6b7280', '#9ca3af')};
      }
    `,
  ];

  public render(): TemplateResult {
    const { users } = this.usersState;
    const currentUserId = this.loginState.identity?.userId;

    return html`
      <dees-heading level="3">Users</dees-heading>

      <div class="usersContainer">
        <dees-table
          .heading1=${'Users'}
          .heading2=${'OpsServer user accounts'}
          .data=${users}
          .dataName=${'user'}
          .searchable=${true}
          .showColumnFilters=${true}
          .displayFunction=${(user: appstate.IUser) => ({
            ID: html`<span class="userIdCell">${user.id}</span>`,
            Username: user.username,
            Role: this.renderRoleBadge(user.role),
            Session: user.id === currentUserId
              ? html`<span class="sessionBadge">current</span>`
              : '',
          })}
        ></dees-table>
      </div>
    `;
  }

  private renderRoleBadge(role: string): TemplateResult {
    const cls = role === 'admin' ? 'admin' : 'user';
    return html`<span class="roleBadge ${cls}">${role}</span>`;
  }

  async firstUpdated() {
    if (this.loginState.isLoggedIn) {
      await appstate.usersStatePart.dispatchAction(appstate.fetchUsersAction, null);
    }
  }
}