// file: crates/apps/game-snake-poc-tauri/frontend/ts/main.ts
// version: 1

import init, { SnakeWasmGame } from "@snake-wasm";
import "../css/main.css";
import { getRuntimeDescriptor, reportFrontendReady } from "./bridge";
import { frontendError, frontendInfo, initializeFrontendTracing } from "./logging";

function requiredElement<T extends HTMLElement>(identifier: string): T {
    const element = document.getElementById(identifier);
    if (element === null) {
        throw new Error(`Élément frontend requis absent : ${identifier}`);
    }
    return element as T;
}

async function bootstrap(): Promise<void> {
    await initializeFrontendTracing();
    frontendInfo("Snake Tauri frontend bootstrap started");
    const descriptor = await getRuntimeDescriptor();
    await init();
    const game = new SnakeWasmGame();
    const configured = game.configure_runtime_provenance(
        descriptor.platformFamily,
        descriptor.runtimeHost,
        descriptor.deviceClass,
        descriptor.inputProfile,
    );
    if (!configured) {
        game.free();
        throw new Error("La provenance Tauri Android n'a pas été acceptée par l'adapter Snake WASM.");
    }
    const status = requiredElement<HTMLParagraphElement>("runtime-status");
    const provenance = requiredElement<HTMLOutputElement>("runtime-provenance");
    status.textContent = "Runtime minimal initialisé. Le Canvas et les contrôles arrivent dans 0-pre.3.";
    provenance.value = [
        game.provenance_platform_family(),
        game.provenance_runtime_host(),
        game.provenance_execution_model(),
        game.provenance_device_class(),
        game.provenance_input_profile(),
    ].join(" / ");
    window.addEventListener("pagehide", () => game.free(), { once: true });
    await reportFrontendReady();
    frontendInfo(`Snake Tauri frontend ready: ${provenance.value}`);
}

void bootstrap().catch(reason => {
    const message = reason instanceof Error ? reason.message : String(reason);
    document.body.dataset.runtimeState = "error";
    const status = document.getElementById("runtime-status");
    if (status !== null) {
        status.textContent = `Échec d'initialisation : ${message}`;
    }
    frontendError(`Snake Tauri frontend bootstrap failed: ${message}`);
});