import { demoFunc } from './dees-simple-appdash.demo.js';

import {
  customElement,
  html,
  DeesElement,
  property,
  type TemplateResult,
  cssManager,
  css,
  unsafeCSS,
  type CSSResult,
  state,
  domtools,
} from '@design.estate/dees-element';
import './dees-icon.js';
import type { DeesTerminal } from './dees-terminal.js';

declare global {
  interface HTMLElementTagNameMap {
    'dees-simple-appdash': DeesSimpleAppDash;
  }
}

export interface IView {
  name: string;
  iconName?: string;
  element: DeesElement['constructor']['prototype'];
}

@customElement('dees-simple-appdash')
export class DeesSimpleAppDash extends DeesElement {
  // STATIC
  public static demo = demoFunc;
  // INSTANCE

  @property()
  public name: string = 'Application Dashboard';

  @property({ type: Array })
  public viewTabs: IView[] = [];
  
  @property({ type: String })
  public terminalSetupCommand: string = `echo "Terminal ready"`;
  
  @state()
  private selectedView: IView;


  public static styles = [
    cssManager.defaultStyles,
    css`
      :host {
        color: ${cssManager.bdTheme('#333', '#ccc')};
        user-select: none;
        display: block;
        overflow: hidden;
        position: relative;
        height: 100%;
        width: 100%;
      }

      .maincontainer {
        position: absolute;
        top: 0px;
        left: 0px;
        right: 0px;
        bottom: 0px;
        overflow: hidden;
      }

      .appbar {
        position: absolute;
        top: 0px;
        left: 0px;
        height: calc(100% - 24px);
        width: 240px;
        background: ${cssManager.bdTheme('#fafafa', '#000')};
        border-right: 1px solid ${cssManager.bdTheme('#e0e0e0', '#202020')};
        font-size: 12px;
        font-family: 'Geist Sans', sans-serif;
        z-index: 2;
        display: grid;
        grid-template-rows: auto min-content;
        overflow: hidden;
      }

      .sidebar-header {
        padding: 16px 12px;
        border-bottom: 1px solid ${cssManager.bdTheme('#e0e0e0', '#202020')};
        display: flex;
        align-items: center;
        gap: 8px;
      }
      
      .appName {
        font-size: 14px;
        font-weight: 600;
        color: ${cssManager.bdTheme('#000', '#fff')};
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }
      
      .viewTabs-container {
        flex: 1;
        overflow-y: auto;
        padding: 4px 0;
      }

      .viewTabs {
        display: flex;
        flex-direction: column;
      }

      .viewTab {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px 12px;
        cursor: default;
        transition: background 0.1s;
        color: ${cssManager.bdTheme('#333', '#ccc')};
        user-select: none;
        position: relative;
      }

      .viewTab:hover {
        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.04)', 'rgba(255, 255, 255, 0.08)')};
      }

      .viewTab:active {
        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.08)', 'rgba(255, 255, 255, 0.12)')};
      }
      
      .viewTab.selected {
        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.08)', 'rgba(255, 255, 255, 0.12)')};
        color: ${cssManager.bdTheme('#000', '#fff')};
        font-weight: 500;
      }
      
      .viewTab.selected::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 3px;
        background: ${cssManager.bdTheme('#26a69a', '#26a69a')};
      }
      
      .viewTab dees-icon {
        font-size: 14px;
        opacity: 0.7;
      }


      .appActions {
        padding: 12px;
        border-top: 1px solid ${cssManager.bdTheme('#e0e0e0', '#202020')};
      }

      .action {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px;
        border-radius: 4px;
        cursor: default;
        transition: background 0.1s;
        color: ${cssManager.bdTheme('#333', '#ccc')};
      }
      
      .action:hover {
        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.04)', 'rgba(255, 255, 255, 0.08)')};
      }
      
      .action dees-icon {
        font-size: 14px;
        opacity: 0.7;
      }

      .appcontent {
        z-index: 1;
        position: absolute;
        top: 0px;
        right: 0px;
        height: calc(100% - 24px);
        bottom: 24px;
        width: calc(100% - 240px);
        overflow: auto;
        background: ${cssManager.bdTheme('#f5f5f5', '#000')};
        overscroll-behavior: contain;
      }
      
      .controlbar {
        color: #fff;
        position: absolute;
        bottom: 0px;
        left: 0px;
        width: 100%;
        border-top: 1px solid ${cssManager.bdTheme('#00000020', '#ffffff20')};
        height: 24px;
        background: ${cssManager.bdTheme('#2196f3', '#1565c0')};
        z-index: 2;
        display: flex;
        justify-content: flex-end;
        align-items: center;
        flex-direction: row;
        font-size: 12px;
      }

      .control {
        display: flex;
        align-items: center;
        gap: 4px;
        margin-right: 16px;
        white-space: nowrap;
        cursor: default;
        opacity: 0.8;
        transition: opacity 0.2s;
      }
      
      .control:hover {
        opacity: 1;
      }
      
      .control dees-icon {
        font-size: 14px;
      }

    `,
  ];

  public render(): TemplateResult {
    return html`
      <div class="maincontainer">
        <div class="appbar">
          <div>
            <div class="sidebar-header">
              <dees-icon .icon="${'lucide:grid3x3'}" style="font-size: 18px;"></dees-icon>
              <div class="appName">${this.name}</div>
            </div>
            <div class="viewTabs-container">
              <div class="viewTabs">
                ${this.viewTabs.map(
                  (view) => html`
                    <div 
                      class="viewTab ${this.selectedView === view ? 'selected' : ''}" 
                      @click=${() => this.loadView(view)}
                    >
                      ${view.iconName ? html`
                        <dees-icon .icon="${`${view.iconName}`}"></dees-icon>
                      ` : ''}
                      <span style="flex: 1;">${view.name}</span>
                    </div>
                  `
                )}
              </div>
            </div>
          </div>
          <div class="appActions">
            <div class="action" @click=${() => {
              this.dispatchEvent(new CustomEvent('logout', { bubbles: true, composed: true }));
            }}>
              <dees-icon .icon="${'lucide:logOut'}"></dees-icon>
              <span>Logout</span>
            </div>
          </div>
        </div>
        <div class="appcontent">
          <!-- Content goes here -->
        </div>
        <div class="controlbar">
          <div class="control">
            <dees-icon .icon="${'lucide:wifi'}"></dees-icon>
            <span>Connected</span>
          </div>
          <div class="control" @click=${this.launchTerminal}>
            <dees-icon .icon="${'lucide:terminal'}"></dees-icon>
            <span>Terminal</span>
          </div>
        </div>
      </div>
    `;
  }

  public async firstUpdated(_changedProperties): Promise<void> {
    const domtools = await this.domtoolsPromise;
    super.firstUpdated(_changedProperties);
    if (this.viewTabs && this.viewTabs.length > 0) {
      await this.loadView(this.viewTabs[0]);
    }
  }
  
  public currentTerminal: DeesTerminal;
  public async launchTerminal() {
    const domtools = await this.domtoolsPromise;
    if (this.currentTerminal) {
      // If terminal already exists, remove it
      await this.closeTerminal();
      return;
    }
    
    const maincontainer = this.shadowRoot.querySelector('.maincontainer');
    const { DeesTerminal } = await import('./dees-terminal.js');
    const terminal = new DeesTerminal();
    terminal.setupCommand = this.terminalSetupCommand;
    this.currentTerminal = terminal;
    maincontainer.appendChild(terminal);
    terminal.style.position = 'absolute';
    terminal.style.zIndex = '10';
    terminal.style.top = '0px';
    terminal.style.left = '240px';
    terminal.style.right = '0px';
    terminal.style.bottom = '24px';
    terminal.style.opacity = '0';
    terminal.style.transform = 'translateY(20px)';
    terminal.style.transition = 'all 0.2s';
    terminal.style.background = '#000';
    terminal.style.boxShadow = '0 4px 20px rgba(0, 0, 0, 0.3)';
    terminal.style.maxWidth = `calc(${maincontainer.clientWidth}px -240px)`;
    terminal.style.maxHeight = `calc(${maincontainer.clientHeight}px - 24px)`;
    
    // Add close button to terminal
    terminal.addEventListener('close', () => this.closeTerminal());
    
    await domtools.convenience.smartdelay.delayFor(0);
    terminal.style.opacity = '1';
    terminal.style.transform = 'translateY(0px)';
    return terminal;
  }
  
  private async closeTerminal() {
    const domtools = await this.domtoolsPromise;
    if (this.currentTerminal) {
      this.currentTerminal.style.opacity = '0';
      this.currentTerminal.style.transform = 'translateY(20px)';
      await domtools.convenience.smartdelay.delayFor(200);
      this.currentTerminal.remove();
      this.currentTerminal = null;
    }
  }


  private currentView: DeesElement;
  public async loadView(viewArg: IView) {
    const appcontent = this.shadowRoot.querySelector('.appcontent');
    const view = new viewArg.element();
    if (this.currentView) {
      this.currentView.remove();
    }
    appcontent.appendChild(view);
    this.currentView = view;
    this.selectedView = viewArg;
    
    // Emit view-select event
    this.dispatchEvent(new CustomEvent('view-select', {
      detail: { view: viewArg },
      bubbles: true,
      composed: true
    }));
  }
}