import { css, html } from "lit";
import { property } from "lit/decorators.js";
import { BaseElement } from "../../core/base-element.ts";

/**
 * CTTile - A tile component for rendering page/item previews with click handling
 *
 * @element ct-tile
 *
 * @attr {Object} item - Item object with title and metadata
 * @attr {string} summary - Summary text to display
 * @attr {boolean} clickable - Whether the tile is clickable
 *
 * @fires ct-click - Fired when tile is clicked with detail: { item }
 *
 * @example
 * <ct-tile .item="${page}" summary="Pages: 2, Lists: 1" @ct-click="${handleClick}"></ct-tile>
 */

export class CTTile extends BaseElement {
  @property()
  item: { title: string; [key: string]: any } = { title: "" };

  @property()
  summary: string = "";

  @property()
  clickable: boolean = true;

  static override styles = css`
    :host {
      display: block;
      width: 100%;

      --background: #ffffff;
      --foreground: #0f172a;
      --border: #e2e8f0;
      --ring: #94a3b8;
      --muted: #f8fafc;
      --muted-foreground: #64748b;
      --accent: #3b82f6;
      --accent-foreground: #ffffff;

      --tile-padding: 1rem;
      --tile-border-radius: 0.5rem;
      --tile-border: 1px solid var(--border);
      --tile-shadow:
        0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
      }

      .tile {
        background-color: var(--background);
        border: var(--tile-border);
        border-radius: var(--tile-border-radius);
        padding: var(--tile-padding);
        box-shadow: var(--tile-shadow);
        transition: all 0.2s;
        cursor: default;
      }

      .tile.clickable {
        cursor: pointer;
      }

      .tile.clickable:hover {
        border-color: var(--accent);
        box-shadow:
          0 4px 6px -1px rgb(0 0 0 / 0.1),
          0 2px 4px -2px rgb(0 0 0 / 0.1);
        transform: translateY(-1px);
      }

      .tile.clickable:active {
        transform: translateY(0);
        box-shadow: var(--tile-shadow);
      }

      .tile-title {
        font-weight: bold;
        font-size: 1.125rem;
        color: var(--foreground);
        margin: 0 0 0.5rem 0;
        line-height: 1.25;
      }

      .tile-summary {
        color: var(--muted-foreground);
        font-size: 0.875rem;
        line-height: 1.25;
        margin: 0;
      }

      .tile-content {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
      }

      .summary-details {
        border: none;
        background: none;
        padding: 0;
        color: inherit;
        font: inherit;
        cursor: pointer;
      }

      .summary-details summary {
        cursor: pointer;
        user-select: none;
        color: var(--muted-foreground);
        font-size: 0.875rem;
      }

      .summary-details summary:hover {
        color: var(--foreground);
      }

      .summary-details[open] summary {
        margin-bottom: 0.5rem;
      }

      .empty-tile {
        color: var(--muted-foreground);
        font-style: italic;
        text-align: center;
        padding: 2rem;
      }
    `;

    private handleClick() {
      if (this.clickable) {
        this.emit("ct-click", { item: this.item });
      }
    }

    override render() {
      if (!this.item || !this.item.title) {
        return html`
          <div class="empty-tile">No item data</div>
        `;
      }

      return html`
        <div
          class="tile ${this.clickable ? "clickable" : ""}"
          @click="${this.handleClick}"
        >
          <div class="tile-content">
            <h3 class="tile-title">${this.item.title}</h3>
            ${this.summary
              ? html`
                <details class="summary-details">
                  <summary>${this.summary}</summary>
                </details>
              `
              : ""}
            <slot></slot>
          </div>
        </div>
      `;
    }
  }

  globalThis.customElements.define("ct-tile", CTTile);