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

import { SioCombox } from './sio-combox.js';
import { SioIcon } from './sio-icon.js';
SioCombox;
SioIcon;

// Import design tokens
import { colors, bdTheme } from './00colors.js';
import { spacing, radius, shadows, transitions, sizes } from './00tokens.js';
import { fontFamilies, typography } from './00fonts.js';

declare global {
  interface HTMLElementTagNameMap {
    'sio-fab': SioFab;
  }
}

@customElement('sio-fab')
export class SioFab extends DeesElement {
  @property({ type: Boolean })
  public accessor showCombox = false;

  @state()
  private accessor shouldPulse = false;

  public static demo = () => html` <sio-fab .showCombox=${true}></sio-fab> `;

  constructor() {
    super();
    domtools.DomTools.setupDomTools();
  }

  public static styles = [
    cssManager.defaultStyles,
    css`
      :host {
        will-change: transform;
        position: absolute;
        display: block;
        bottom: 20px;
        right: 20px;
        z-index: 10000;
        color: #fff;
        --fab-gradient-start: #6366f1;
        --fab-gradient-mid: #8b5cf6;
        --fab-gradient-end: #a855f7;
        --fab-gradient-hover-end: #c026d3;
        --fab-shadow-color: rgba(139, 92, 246, 0.25);
        --fab-size: 60px;
      }

      #mainbox {
        transition: ${unsafeCSS(transitions.all)};
        position: absolute;
        bottom: 0px;
        right: 0px;
        height: var(--fab-size);
        width: var(--fab-size);
        box-shadow: 0 4px 16px -2px rgba(0, 0, 0, 0.1), 0 2px 8px -2px rgba(0, 0, 0, 0.06);
        line-height: var(--fab-size);
        text-align: center;
        cursor: pointer;
        background: linear-gradient(135deg, var(--fab-gradient-start) 0%, var(--fab-gradient-mid) 50%, var(--fab-gradient-end) 100%);
        color: white;
        border-radius: ${unsafeCSS(radius.full)};
        user-select: none;
        border: none;
        animation: fabEntrance 300ms cubic-bezier(0.4, 0, 0.2, 1);
        overflow: hidden;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
      }

      #mainbox::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 50%);
        opacity: 0;
        transition: opacity 200ms ease;
      }

      #mainbox::after {
        content: '';
        position: absolute;
        top: -4px;
        left: -4px;
        right: -4px;
        bottom: -4px;
        background: linear-gradient(135deg, var(--fab-gradient-start), var(--fab-gradient-end));
        border-radius: inherit;
        z-index: -1;
        opacity: 0;
        filter: blur(12px);
        transition: opacity 300ms ease;
      }

      #mainbox:hover::before {
        opacity: 1;
      }

      #mainbox:hover::after {
        opacity: 0.3;
      }

      @keyframes fabEntrance {
        from {
          transform: scale(0.8);
          opacity: 0;
        }
        to {
          transform: scale(1);
          opacity: 1;
        }
      }

      #mainbox:hover {
        transform: scale(1.02);
        background: linear-gradient(135deg, var(--fab-gradient-start) 0%, var(--fab-gradient-mid) 50%, var(--fab-gradient-hover-end) 100%);
        box-shadow: 0 8px 20px -4px var(--fab-shadow-color);
      }

      #mainbox:active {
        transform: scale(0.98);
        box-shadow: 0 4px 12px -2px var(--fab-shadow-color);
      }

      #mainbox.pulse::after {
        animation: fabPulse 0.6s ease-out forwards;
      }

      @keyframes fabPulse {
        0% {
          box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.4);
          opacity: 1;
        }
        100% {
          box-shadow: 0 0 0 12px rgba(139, 92, 246, 0);
          opacity: 0;
        }
      }

      #mainbox .icon {
        position: absolute;
        top: 0px;
        left: 0px;
        will-change: transform, opacity;
        transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
        height: 100%;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      #mainbox .icon.open {
        opacity: 1;
        transform: rotate(0deg) scale(1);
      }

      #mainbox .icon.close {
        opacity: 0;
        transform: rotate(-45deg) scale(0.9);
      }

      /* When combox is open */
      :host(.combox-open) #mainbox .icon.open {
        opacity: 0;
        transform: rotate(45deg) scale(0.9);
      }

      :host(.combox-open) #mainbox .icon.close {
        opacity: 1;
        transform: rotate(0deg) scale(1);
      }

      #mainbox .icon sio-icon {
        color: white;
        filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
      }

      #mainbox .icon.close sio-icon {
        transform: scale(1);
      }
    `,
    // Mobile responsive styles - smaller FAB
    cssManager.cssForPhablet(css`
      :host {
        --fab-size: 48px;
        bottom: 16px;
        right: 16px;
      }
    `),
  ];

  public render(): TemplateResult {
    return html`
      <div id="mainbox"
        class="${this.shouldPulse ? 'pulse' : ''}"
        @click=${this.toggleCombox}
        @animationend=${() => { this.shouldPulse = false; }}
      >
        <div class="icon open">
          <sio-icon icon="message-square" size="24"></sio-icon>
        </div>
        <div class="icon close">
          <sio-icon icon="x" size="20"></sio-icon>
        </div>
      </div>
    `;
  }

  /**
   * toggles the combox
   */
  public async toggleCombox() {
    const combox = SioCombox.getInstance();
    if (combox) {
      const wasOpen = combox.getIsOpen();
      combox.toggle();
      this.showCombox = combox.getIsOpen();
      if (this.showCombox && !wasOpen) {
        this.shouldPulse = true;
      }
    }
  }

  public async firstUpdated(args: any) {
    super.firstUpdated(args);
    const domtools = await this.domtoolsPromise;

    // Create the singleton combox on body
    const combox = SioCombox.createOnBody();

    // Listen for close events
    combox.addEventListener('close', () => {
      this.showCombox = false;
    });

    // Set up keyboard shortcut
    domtools.keyboard
      .on([domtools.keyboard.keyEnum.Ctrl, domtools.keyboard.keyEnum.S])
      .subscribe(() => {
        this.toggleCombox();
      });
  }

  public async updated(changedProperties: Map<string | number | symbol, unknown>) {
    super.updated(changedProperties);

    // Update host class based on combox state
    if (changedProperties.has('showCombox')) {
      if (this.showCombox) {
        this.classList.add('combox-open');
      } else {
        this.classList.remove('combox-open');
      }
    }
  }
}