/// <reference types="ace" />

import { Debounce } from "./debounce.js";
import { PlaygroundConsole } from "./playground_console.js";
import { CodeRunner } from "./code_runner.js";
import { AssetEditor } from "./asset_editor.js";
import { AssetProvider } from "./asset_provider.js";
import { Gamelib } from "./gamelib.js";
import { KarlkoderCodec } from "./karlkoder_codec.js";
import { promptUpload } from "./prompt_upload.js";
import { GamelibCompleter } from "./gamelib_completer.js";
import { TextCompleter } from "./text_completer.js";
import { ConsoleInput } from "./console_input.js";
import { downloadFile, slugify } from "./utils.js";
import { HtmlExporter } from "./html_exporter.js";

const editor = ace.edit("editor");
editor.setTheme("ace/theme/gruvbox");
editor.session.setMode("ace/mode/javascript");

const langTools = ace.require("ace/ext/language_tools");

editor.setOptions({
    enableBasicAutocompletion: true,
    enableLiveAutocompletion: true,
    copyWithEmptySelection: true,
});

langTools.setCompleters([new GamelibCompleter(), new TextCompleter()]);

editor.setValue(sessionStorage.getItem("code") ?? editor.getValue(), -1);

const playgroundConsole = new PlaygroundConsole(
    document.querySelector("#console-code"),
    editor,
);

addEventListener("DOMContentLoaded", () => {
    playgroundConsole.getAdapter().log("Karlkode 1.0");
});

const assetProvider = new AssetProvider();

const assetEditor = new AssetEditor(document.querySelector("#asset-editor-container"), []);

const htmlExporter = new HtmlExporter(assetProvider);

const gamelib = new Gamelib(
    playgroundConsole.getAdapter(),
    assetProvider,
    document.querySelector("canvas"),
);

globalThis.karlkoder = {
    lib() {
        return gamelib.getAdapter();
    },
};

const codeRunner = new CodeRunner(playgroundConsole.getAdapter(), gamelib);

new ConsoleInput(document.querySelector("#console-input"), playgroundConsole, codeRunner);

const runButton = document.querySelector("#run-button");
const toggleAssetEditorButton = document.querySelector("#toggle-asset-editor-button");
const projectName = document.querySelector("#project-name");
const saveButton = document.querySelector("#save-button");
const loadButton = document.querySelector("#load-button");
const exportButton = document.querySelector("#export-button");

const sessionSaveDebounce = new Debounce(1000);
editor.addEventListener("change", () => {
    sessionSaveDebounce.run(() => {
        sessionStorage.setItem("code", editor.getValue());
    });
});

if (sessionStorage.getItem("project-name")) {
    projectName.value = sessionStorage.getItem("project-name");
}

projectName.onchange = () => {
    sessionStorage.setItem("project-name", projectName.value);
};

loadButton.onclick = async () => {
    const files = await promptUpload(".karlkode", false);
    if (files.length === 0) {
        return;
    }
    if (files.length > 1) {
        throw new Error(
            `unreachable: something went wrong ! files.length > 1 : files.length = ${files.length}`,
        );
    }
    const items = KarlkoderCodec.de(
        await fetch(URL.createObjectURL(files[0])).then((x) => x.bytes()),
    );
    const assets = items
        .filter((x) => x.tag === "asset")
        .map((x) => {
            delete x.tag;
            return x;
        });
    const code = items.find((x) => x.tag === "code");
    delete code.tag;

    assetEditor.importAssets(
        assets.map(({ name, mime, content }) => {
            const file = new File([content], name, { type: mime });

            return { name, file };
        }),
    );

    projectName.value = code.name;
    const dec = new TextDecoder();
    editor.setValue(dec.decode(code.content));
};

runButton.onclick = async () => {
    const code = editor.getValue();

    const assets = await assetEditor.getAssets();
    gamelib.assetProvider.injectAssets(assets);

    codeRunner.setCode(code);
    codeRunner.toggle();

    document.querySelector("canvas").focus();

    if (codeRunner.isRunning) {
        runButton.textContent = "✋ Stop";
        runButton.classList.add("running");
    } else {
        runButton.textContent = "🏃 Run";
        runButton.classList.remove("running");
    }
};

exportButton.onclick = async () => {
    const html = await htmlExporter.export(projectName.value, editor.getValue());

    downloadFile(slugify(projectName.value) || "project", html, ".html", "text/html");
};

async function saveKarlKoder() {
    downloadFile(
        slugify(projectName.value) || "project",
        await KarlkoderCodec.en(
            projectName.value,
            editor.getValue(),
            await assetEditor.getAssets(),
        ),
        ".karlkode",
    );
}

saveButton.onclick = () => saveKarlKoder();

addEventListener("keydown", (ev) => {
    if (ev.ctrlKey && ev.key === "s") {
        ev.preventDefault();
        saveKarlKoder();
    }
});

toggleAssetEditorButton.addEventListener("click", () => assetEditor.toggleEditor());