/**
 * main.js — Главная точка входа клиентского приложения «Кадр» v2
 */

import { checkAuth, submitLogin, logout } from "./auth.js";
import { startHealthPolling } from "./health.js";
import { initUpload } from "./upload.js";
import { initReference } from "./reference.js";
import { initSuggest } from "./suggest.js";
import { initJobsEvents, runJob } from "./jobs.js";
import { refreshHistory } from "./history-tree.js";
import { subscribe, getState } from "./state.js";

function setupButtonsAndInputs() {
  const loginForm = document.querySelector("#login-form");
  const logoutBtn = document.querySelector("#logout-button");
  const editBtn = document.querySelector("#edit-button");
  const upscaleBtn = document.querySelector("#upscale-button");
  const promptInput = document.querySelector("#prompt");
  const promptCounter = document.querySelector("#prompt-counter");

  if (loginForm) {
    loginForm.addEventListener("submit", submitLogin);
  }

  if (logoutBtn) {
    logoutBtn.addEventListener("click", logout);
  }

  if (promptInput) {
    promptInput.addEventListener("input", () => {
      const val = promptInput.value;
      if (promptCounter) {
        promptCounter.textContent = `${val.length} / 1000`;
      }
      const state = getState();
      if (editBtn) {
        editBtn.disabled = !state.currentVersionId || !val.trim() || state.isBusy;
      }
    });
  }

  if (editBtn) {
    editBtn.addEventListener("click", () => runJob("edit"));
  }

  if (upscaleBtn) {
    upscaleBtn.addEventListener("click", () => runJob("upscale"));
  }

  // Subscribe to state changes to update button states
  subscribe((state, changeKey) => {
    if (changeKey === "isBusy" || changeKey === "currentVersionId") {
      const hasVersion = Boolean(state.currentVersionId);
      const promptVal = promptInput?.value?.trim() || "";

      if (upscaleBtn) upscaleBtn.disabled = !hasVersion || state.isBusy;
      if (editBtn) editBtn.disabled = !hasVersion || !promptVal || state.isBusy;
    }
  });
}

async function init() {
  setupButtonsAndInputs();
  initUpload();
  initReference();
  initSuggest();
  startHealthPolling();

  const authenticated = await checkAuth();
  if (authenticated) {
    initJobsEvents();
    await refreshHistory(true);
  }
}

document.addEventListener("DOMContentLoaded", init);