// Settings Management JavaScript

let currentSettings = {};

document.addEventListener("DOMContentLoaded", function () {
  checkAuth().then((authenticated) => {
    if (authenticated) {
      loadSettings();
    }
  });
});

async function loadSettings() {
  try {
    const response = await fetch("/api/admin/settings", {
      credentials: "include",
    });
    const data = await response.json();
    if (data.success) {
      currentSettings = data.settings || {};
      populateSettings();
    }
  } catch (error) {
    console.error("Failed to load settings:", error);
  }
}

function populateSettings() {
  // General Settings
  if (currentSettings.general) {
    document.getElementById("siteName").value =
      currentSettings.general.siteName || "";
    document.getElementById("siteTagline").value =
      currentSettings.general.siteTagline || "";
    document.getElementById("siteEmail").value =
      currentSettings.general.siteEmail || "";
    document.getElementById("sitePhone").value =
      currentSettings.general.sitePhone || "";
    document.getElementById("timezone").value =
      currentSettings.general.timezone || "UTC";
  }

  // Homepage Settings
  if (currentSettings.homepage) {
    document.getElementById("showHero").checked =
      currentSettings.homepage.showHero !== false;
    document.getElementById("showPromotions").checked =
      currentSettings.homepage.showPromotions !== false;
    document.getElementById("showPortfolio").checked =
      currentSettings.homepage.showPortfolio !== false;
    document.getElementById("showBlog").checked =
      currentSettings.homepage.showBlog !== false;
  }

  // Product Settings
  if (currentSettings.product) {
    document.getElementById("defaultProductStatus").value =
      currentSettings.product.defaultStatus || "active";
    document.getElementById("productsPerPage").value =
      currentSettings.product.perPage || 12;
    document.getElementById("bestSellerLogic").value =
      currentSettings.product.bestSellerLogic || "manual";
    document.getElementById("enableInventory").checked =
      currentSettings.product.enableInventory !== false;
    document.getElementById("showOutOfStock").checked =
      currentSettings.product.showOutOfStock !== false;
  }

  // Security Settings
  if (currentSettings.security) {
    document.getElementById("passwordExpiration").value =
      currentSettings.security.passwordExpiration || 90;
    document.getElementById("sessionTimeout").value =
      currentSettings.security.sessionTimeout || 60;
    document.getElementById("loginAttempts").value =
      currentSettings.security.loginAttempts || 5;
    document.getElementById("requireStrongPassword").checked =
      currentSettings.security.requireStrongPassword !== false;
    document.getElementById("enableTwoFactor").checked =
      currentSettings.security.enableTwoFactor || false;
  }

  // Appearance Settings
  if (currentSettings.appearance) {
    document.getElementById("accentColor").value =
      currentSettings.appearance.accentColor || "#667eea";
    updateColorPreview();
  }
}

function previewLogo() {
  const fileInput = document.getElementById("siteLogo");
  const preview = document.getElementById("logoPreview");

  if (fileInput.files && fileInput.files[0]) {
    const reader = new FileReader();
    reader.onload = function (e) {
      preview.innerHTML = `<img src="${e.target.result}" alt="Logo" />`;
    };
    reader.readAsDataURL(fileInput.files[0]);
  }
}

function previewFavicon() {
  const fileInput = document.getElementById("siteFavicon");
  const preview = document.getElementById("faviconPreview");

  if (fileInput.files && fileInput.files[0]) {
    const reader = new FileReader();
    reader.onload = function (e) {
      preview.innerHTML = `<img src="${e.target.result}" alt="Favicon" />`;
    };
    reader.readAsDataURL(fileInput.files[0]);
  }
}

function selectLayout(layout) {
  document.querySelectorAll(".theme-selector .theme-option").forEach((el) => {
    el.classList.remove("active");
  });
  event.target.closest(".theme-option").classList.add("active");
}

function selectTheme(theme) {
  document.querySelectorAll(".theme-selector .theme-option").forEach((el) => {
    el.classList.remove("active");
  });
  event.target.closest(".theme-option").classList.add("active");
}

function updateColorPreview() {
  const color = document.getElementById("accentColor").value;
  document.getElementById("colorPreview").style.backgroundColor = color;
  document.getElementById("colorValue").textContent = color;
}

async function saveSettings() {
  const settings = {
    general: {
      siteName: document.getElementById("siteName").value,
      siteTagline: document.getElementById("siteTagline").value,
      siteEmail: document.getElementById("siteEmail").value,
      sitePhone: document.getElementById("sitePhone").value,
      timezone: document.getElementById("timezone").value,
    },
    homepage: {
      showHero: document.getElementById("showHero").checked,
      showPromotions: document.getElementById("showPromotions").checked,
      showPortfolio: document.getElementById("showPortfolio").checked,
      showBlog: document.getElementById("showBlog").checked,
    },
    product: {
      defaultStatus: document.getElementById("defaultProductStatus").value,
      perPage: parseInt(document.getElementById("productsPerPage").value),
      bestSellerLogic: document.getElementById("bestSellerLogic").value,
      enableInventory: document.getElementById("enableInventory").checked,
      showOutOfStock: document.getElementById("showOutOfStock").checked,
    },
    security: {
      passwordExpiration: parseInt(
        document.getElementById("passwordExpiration").value
      ),
      sessionTimeout: parseInt(document.getElementById("sessionTimeout").value),
      loginAttempts: parseInt(document.getElementById("loginAttempts").value),
      requireStrongPassword: document.getElementById("requireStrongPassword")
        .checked,
      enableTwoFactor: document.getElementById("enableTwoFactor").checked,
    },
    appearance: {
      accentColor: document.getElementById("accentColor").value,
    },
  };

  try {
    const response = await fetch("/api/admin/settings", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      credentials: "include",
      body: JSON.stringify(settings),
    });

    const data = await response.json();
    if (data.success) {
      showSuccess("Settings saved successfully!");
      currentSettings = settings;
    } else {
      showError(data.message || "Failed to save settings");
    }
  } catch (error) {
    console.error("Failed to save settings:", error);
    showError("Failed to save settings");
  }
}

async function logout() {
  try {
    const response = await fetch("/api/admin/logout", {
      method: "POST",
      credentials: "include",
    });
    if (response.ok) window.location.href = "/admin/login.html";
  } catch (error) {
    console.error("Logout failed:", error);
  }
}

function showSuccess(message) {
  alert(message);
}

function showError(message) {
  alert("Error: " + message);
}