/* typehints:start */
import { Application } from "../application";
import { ModLoader } from "./modloader";
/* typehints:end */

import { createLogger } from "../core/logging";
import { AtlasSprite, SpriteAtlasLink } from "../core/sprites";
import { Mod } from "./mod";

const LOG = createLogger("mod-interface");

export class ModInterface {
    /**
     *
     * @param {ModLoader} modLoader
     * @param {Mod} mod
     */
    constructor(modLoader, mod) {
        /**
         * @param {Application} app
         */
        this.app = undefined;

        this.modLoader = modLoader;
        this.mod = mod;
    }

    registerCss(cssString) {
        const element = document.createElement("style");
        element.textContent = cssString;
        element.setAttribute("data-mod-id", this.mod.metadata.id);
        element.setAttribute("data-mod-name", this.mod.metadata.name);
        document.head.appendChild(element);
    }

    registerSprite(spriteId, base64string) {
        assert(base64string.startsWith("data:image"));
        const img = new Image();
        img.src = base64string;

        const sprite = new AtlasSprite(spriteId);

        const link = new SpriteAtlasLink({
            w: img.width,
            h: img.height,
            atlas: img,
            packOffsetX: 0,
            packOffsetY: 0,
            packedW: img.width,
            packedH: img.height,
            packedX: 0,
            packedY: 0,
        });

        sprite.linksByResolution["0.25"] = link;
        sprite.linksByResolution["0.5"] = link;
        sprite.linksByResolution["0.75"] = link;

        // @ts-ignore
        sprite.modSource = this.mod;

        const oldSprite = this.modLoader.lazySprites.get(spriteId);
        if (oldSprite) {
            LOG.error(
                "Sprite '" +
                    spriteId +
                    "' is provided twice, once by mod '" +
                    // @ts-ignore
                    oldSprite.modSource.metadata.name +
                    "' and once by mod '" +
                    this.mod.metadata.name +
                    "'. This could cause artifacts."
            );
        }
        this.modLoader.lazySprites.set(spriteId, sprite);
    }
}