import { LitElement, html, css } from "lit";
import { gameStateManager } from "../core/GameStateManager.js";
import { GameLoop } from "../core/GameLoop.js";

import "./deployment-hud.js";
import "./dialogue-overlay.js";
import "./combat-hud.js";

export class GameViewport extends LitElement {
  static styles = css`
    :host {
      display: block;
      width: 100%;
      height: 100%;
      overflow: hidden;
    }
    #canvas-container {
      width: 100%;
      height: 100%;
    }
  `;

  static get properties() {
    return {
      squad: { type: Array },
      deployedIds: { type: Array },
    };
  }

  constructor() {
    super();
    this.squad = [];
    this.deployedIds = [];
  }

  #handleUnitSelected(event) {
    const unit = event.detail.unit;
    const index = this.squad.indexOf(unit);
    gameStateManager.gameLoop.selectDeploymentUnit(index);
  }

  #handleStartBattle() {
    if (gameStateManager.gameLoop) {
      gameStateManager.gameLoop.finalizeDeployment();
    }
  }

  async firstUpdated() {
    const container = this.shadowRoot.getElementById("canvas-container");
    const loop = new GameLoop();
    loop.init(container);
    gameStateManager.setGameLoop(loop);
    this.squad = await gameStateManager.rosterLoaded;
  }

  render() {
    return html`<div id="canvas-container"></div>
      <deployment-hud
        .squad=${this.squad}
        .deployedIds=${this.deployedIds}
        @unit-selected=${this.#handleUnitSelected}
        @start-battle=${this.#handleStartBattle}
      ></deployment-hud>
      <combat-hud></combat-hud>
      <dialogue-overlay></dialogue-overlay>`;
  }
}

customElements.define("game-viewport", GameViewport);