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

import { mobileComponentStyles } from '../../00componentstyles.js';
import { demoFunc } from './dees-mobile-button.demo.js';

export type ButtonVariant = 'default' | 'primary' | 'secondary' | 'outline' | 'ghost' | 'destructive' | 'link';
export type ButtonSize = 'sm' | 'md' | 'lg';

declare global {
  interface HTMLElementTagNameMap {
    'dees-mobile-button': DeesMobileButton;
  }
}

@customElement('dees-mobile-button')
export class DeesMobileButton extends DeesElement {
  public static demo = demoFunc;

  @property({ type: String })
  accessor variant: ButtonVariant = 'default';

  @property({ type: String })
  accessor size: ButtonSize = 'md';

  @property({ type: Boolean })
  accessor disabled: boolean = false;

  @property({ type: Boolean })
  accessor loading: boolean = false;

  @property({ type: Boolean, reflect: true })
  accessor icon: boolean = false;

  @property({ type: String })
  accessor type: 'button' | 'submit' | 'reset' = 'button';

  public static styles = [
    cssManager.defaultStyles,
    mobileComponentStyles,
    css`
      :host {
        display: inline-block;
      }

      button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        font-family: inherit;
        font-weight: 500;
        border: none;
        border-radius: calc(var(--dees-radius, 0.5rem) - 2px);
        cursor: pointer;
        transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
        outline: none;
        position: relative;
        white-space: nowrap;
        text-decoration: none;
      }

      button:focus-visible {
        outline: 2px solid var(--dees-primary);
        outline-offset: 2px;
      }

      button:active:not(:disabled) {
        transform: scale(0.98);
      }

      button:disabled {
        opacity: 0.5;
        cursor: not-allowed;
        pointer-events: none;
      }

      /* Sizes */
      button.sm {
        height: 2rem;
        padding: 0 0.75rem;
        font-size: 0.75rem;
        border-radius: calc(var(--dees-radius, 0.5rem) - 4px);
      }

      button.md {
        height: 2.25rem;
        padding: 0 1rem;
        font-size: 0.875rem;
      }

      button.lg {
        height: 2.75rem;
        padding: 0 2rem;
        font-size: 0.875rem;
      }

      /* Variants - using bdTheme for bright/dark support */
      button.default,
      button.primary {
        background: #3b82f6;
        color: #ffffff;
        box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
      }

      button.default:not(:disabled):hover,
      button.primary:not(:disabled):hover {
        background: #2563eb;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      }

      button.secondary {
        background: ${cssManager.bdTheme('#f4f4f5', '#27272a')};
        color: ${cssManager.bdTheme('#18181b', '#fafafa')};
      }

      button.secondary:not(:disabled):hover {
        background: ${cssManager.bdTheme('#e4e4e7', '#3f3f46')};
      }

      button.outline {
        background: transparent;
        color: ${cssManager.bdTheme('#09090b', '#fafafa')};
        border: 1px solid ${cssManager.bdTheme('#e4e4e7', '#3f3f46')};
      }

      button.outline:not(:disabled):hover {
        background: ${cssManager.bdTheme('#f4f4f5', '#27272a')};
        border-color: ${cssManager.bdTheme('#d4d4d8', '#52525b')};
      }

      button.ghost {
        background-color: transparent;
        color: ${cssManager.bdTheme('#09090b', '#fafafa')};
      }

      button.ghost:not(:disabled):hover {
        background: ${cssManager.bdTheme('#f4f4f5', '#27272a')};
      }

      button.destructive {
        background: #dc2626;
        color: #ffffff;
      }

      button.destructive:not(:disabled):hover {
        background: #b91c1c;
      }

      button.link {
        background: transparent;
        color: #3b82f6;
        text-decoration: underline;
        text-underline-offset: 4px;
        padding: 0;
        height: auto;
      }

      button.link:not(:disabled):hover {
        text-decoration: underline;
      }

      /* Loading state */
      .spinner {
        width: 1em;
        height: 1em;
        border: 2px solid transparent;
        border-top-color: currentColor;
        border-radius: 50%;
        animation: spin 0.8s linear infinite;
      }

      @keyframes spin {
        to { transform: rotate(360deg); }
      }

      /* Icon-only button */
      :host([icon]) button {
        width: 2.25rem;
        height: 2.25rem;
        padding: 0;
      }

      :host([icon]) button.sm {
        width: 2rem;
        height: 2rem;
      }

      :host([icon]) button.lg {
        width: 2.75rem;
        height: 2.75rem;
      }
    `,
  ];

  private handleClick(e: MouseEvent) {
    if (this.disabled || this.loading) {
      e.preventDefault();
      e.stopPropagation();
      return;
    }
  }

  public render(): TemplateResult {
    return html`
      <button
        type=${this.type}
        class=${`${this.variant} ${this.size}`}
        ?disabled=${this.disabled || this.loading}
        @click=${this.handleClick}
      >
        ${this.loading ? html`<span class="spinner"></span>` : ''}
        <slot></slot>
      </button>
    `;
  }
}