const STORAGE_KEY = "bratskih-hub-preferences";

const serviceCards = [
  {
    title: "Nextcloud",
    kicker: "Cloud storage",
    description:
      "Личное облако для файлов, заметок, календарей и синхронизации между устройствами.",
    url: "https://nextcloud.bratskih.tech",
    image: "assets/nextcloud.svg",
  },
  {
    title: "Mail",
    kicker: "Mailbox",
    description:
      "Почтовый шлюз для рабочей переписки, уведомлений и управления сообщениями.",
    url: "https://mail.bratskih.tech",
    image: "assets/mail.svg",
  },
  {
    title: "Test Net",
    kicker: "Lab network",
    description:
      "Песочница для экспериментов, тестовых окружений и проверки новых идей.",
    url: "https://test-net.bratskih.tech",
    image: "assets/test-net.svg",
  },
  {
    title: "Gitea",
    kicker: "Git forge",
    description:
      "Домашняя кузница кода: репозитории, задачи, ревью и история проектов.",
    url: "https://gitea.bratskih.tech",
    image: "assets/gitea.svg",
  },
  {
    title: "BratskihTech openspace",
    kicker: "Discussion room",
    description:
      "Комната для обсуждений, созвонов и быстрых встреч вокруг идей Bratskih Tech.",
    url: "https://cloud.bratskih.tech/call/n49bjhdu",
    image: "assets/openspace.svg",
  },
  {
    title: "Обо мне",
    kicker: "Profile",
    description:
      "Короткий раздел о владельце экосистемы, проектах и принципах домашней инфраструктуры.",
    url: "#about",
    image: "assets/about.svg",
    target: "self",
    variant: "about",
  },
];

const defaultPreferences = {
  theme: window.matchMedia("(prefers-color-scheme: light)").matches ? "light" : "dark",
  view: "cards",
  accent: "violet",
};
const availableViews = ["cards", "list", "compact-cards", "compact-list"];

const preferences = {
  ...defaultPreferences,
  ...readPreferences(),
};

const services = document.querySelector("[data-cards-root]");
const settingsToggle = document.querySelector("[data-settings-toggle]");
const settingsPanel = document.querySelector("[data-settings-panel]");
const settingsOverlay = document.querySelector("[data-settings-overlay]");
const settingsClose = document.querySelector("[data-settings-close]");
const themeButtons = document.querySelectorAll("[data-theme]");
const viewButtons = document.querySelectorAll("[data-view]");
const accentButtons = document.querySelectorAll("[data-accent]");

renderCards(serviceCards);
applyPreferences(preferences);
attachCardInteractions();

settingsToggle.addEventListener("click", () => {
  const isOpen = settingsPanel.classList.toggle("is-open");
  settingsOverlay.classList.toggle("is-open", isOpen);
  settingsToggle.setAttribute("aria-expanded", String(isOpen));
});

settingsClose.addEventListener("click", closeSettingsPanel);
settingsOverlay.addEventListener("click", closeSettingsPanel);

document.addEventListener("keydown", (event) => {
  if (event.key === "Escape") {
    closeSettingsPanel();
  }
});

document.addEventListener("click", (event) => {
  if (!settingsPanel.classList.contains("is-open")) {
    return;
  }

  if (settingsPanel.contains(event.target) || settingsToggle.contains(event.target)) {
    return;
  }

  closeSettingsPanel();
});

themeButtons.forEach((button) => {
  button.addEventListener("click", () => {
    preferences.theme = button.dataset.theme;
    applyPreferences(preferences);
    savePreferences(preferences);
  });
});

viewButtons.forEach((button) => {
  button.addEventListener("click", () => {
    preferences.view = button.dataset.view;
    applyPreferences(preferences);
    savePreferences(preferences);
  });
});

accentButtons.forEach((button) => {
  button.addEventListener("click", () => {
    preferences.accent = button.dataset.accent;
    applyPreferences(preferences);
    savePreferences(preferences);
  });
});

function applyPreferences(nextPreferences) {
  if (!availableViews.includes(nextPreferences.view)) {
    nextPreferences.view = defaultPreferences.view;
  }

  document.documentElement.dataset.theme = nextPreferences.theme;
  document.documentElement.dataset.accent = nextPreferences.accent;

  services.classList.remove("cards-view", "list-view", "compact-cards-view", "compact-list-view");
  services.classList.add(`${nextPreferences.view}-view`);

  setActiveButton(themeButtons, "theme", nextPreferences.theme);
  setActiveButton(viewButtons, "view", nextPreferences.view);
  setActiveButton(accentButtons, "accent", nextPreferences.accent);
}

function setActiveButton(buttons, key, value) {
  buttons.forEach((button) => {
    const isActive = button.dataset[key] === value;
    button.classList.toggle("is-active", isActive);
    button.setAttribute("aria-pressed", String(isActive));
  });
}

function readPreferences() {
  try {
    return JSON.parse(localStorage.getItem(STORAGE_KEY)) || {};
  } catch {
    return {};
  }
}

function savePreferences(nextPreferences) {
  localStorage.setItem(STORAGE_KEY, JSON.stringify(nextPreferences));
}

function closeSettingsPanel() {
  settingsPanel.classList.remove("is-open");
  settingsOverlay.classList.remove("is-open");
  settingsToggle.setAttribute("aria-expanded", "false");
}

function clamp(value, min, max) {
  return Math.min(Math.max(value, min), max);
}

function renderCards(cards) {
  services.replaceChildren(...cards.map(createCardElement));
}

function createCardElement(card) {
  const link = document.createElement("a");
  link.className = "service-card";
  link.href = card.url;

  if (card.variant) {
    link.dataset.variant = card.variant;
  }

  if (card.target !== "self") {
    link.target = "_blank";
    link.rel = "noopener noreferrer";
  }

  const shine = document.createElement("span");
  shine.className = "shine";

  const image = document.createElement("img");
  image.src = card.image;
  image.alt = "";
  image.loading = "lazy";

  const content = document.createElement("div");

  const kicker = document.createElement("p");
  kicker.className = "service-kicker";
  kicker.textContent = card.kicker;

  const title = document.createElement("h2");
  title.textContent = card.title;

  const description = document.createElement("p");
  description.textContent = card.description;

  const arrow = document.createElement("span");
  arrow.className = "arrow";
  arrow.setAttribute("aria-hidden", "true");
  arrow.textContent = card.target === "self" ? "↓" : "→";

  content.append(kicker, title, description);
  link.append(shine, image, content, arrow);

  return link;
}

function attachCardInteractions() {
  document.querySelectorAll(".service-card").forEach((card) => {
    let leaveTimer;

    card.addEventListener("pointerenter", () => {
      window.clearTimeout(leaveTimer);
      card.classList.add("is-hovered");
    });

    card.addEventListener("pointermove", (event) => {
      window.clearTimeout(leaveTimer);
      card.classList.add("is-hovered");

      const rect = card.getBoundingClientRect();
      const x = event.clientX - rect.left;
      const y = event.clientY - rect.top;
      const xPercent = clamp((x / rect.width) * 100, 8, 92);
      const yPercent = clamp((y / rect.height) * 100, 8, 92);
      const rotateY = ((xPercent - 50) / 50) * 2.6;
      const rotateX = ((50 - yPercent) / 50) * 2.6;

      card.style.setProperty("--card-x", `${xPercent}%`);
      card.style.setProperty("--card-y", `${yPercent}%`);
      card.style.setProperty("--tilt-x", `${rotateX}deg`);
      card.style.setProperty("--tilt-y", `${rotateY}deg`);
    });

    card.addEventListener("pointerleave", () => {
      leaveTimer = window.setTimeout(() => {
        card.classList.remove("is-hovered");
        card.style.setProperty("--card-x", "50%");
        card.style.setProperty("--card-y", "50%");
        card.style.setProperty("--tilt-x", "0deg");
        card.style.setProperty("--tilt-y", "0deg");
      }, 80);
    });
  });
}