const HeroSlide = require('../models/heroSlideModel');
const SiteSettings = require('../models/siteSettingsModel');
const AnnouncementBar = require('../models/announcementBarModel');
const SalesBanner = require('../models/salesBannerModel');
const FeaturedBanner = require('../models/featuredBannerModel');
const WhyChooseUs = require('../models/whyChooseUsModel');

// ============================================
// HERO SLIDES SECTION
// ============================================

/**
 * @desc    Get all active hero slides (Public)
 * @route   GET /api/content/hero-slides
 * @access  Public
 */
exports.getHeroSlides = async (req, res) => {
  try {
    const slides = await HeroSlide.find({ isActive: true }).sort({ order: 1 });

    res.status(200).json({
      status: 'success',
      results: slides.length,
      data: slides,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Get all hero slides including inactive (Admin)
 * @route   GET /api/content/hero-slides/admin/all
 * @access  Private/Admin
 */
exports.getAllHeroSlidesAdmin = async (req, res) => {
  try {
    const slides = await HeroSlide.find().sort({ order: 1 });

    res.status(200).json({
      status: 'success',
      results: slides.length,
      data: slides,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Get single hero slide by ID
 * @route   GET /api/content/hero-slides/:id
 * @access  Public
 */
exports.getHeroSlideById = async (req, res) => {
  try {
    const slide = await HeroSlide.findById(req.params.id);

    if (!slide) {
      return res.status(404).json({
        status: 'fail',
        message: 'Slide not found',
      });
    }

    res.status(200).json({
      status: 'success',
      data: slide,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Create a new hero slide
 * @route   POST /api/content/hero-slides
 * @access  Private/Admin
 */
exports.createHeroSlide = async (req, res) => {
  try {
    const {
      _id,
      type,
      imageSrc,
      videoSrc,
      poster,
      title,
      description,
      buttonText,
      buttonLink,
      order,
      isActive,
    } = req.body;

    const slide = await HeroSlide.create({
      _id,
      type,
      imageSrc,
      videoSrc,
      poster,
      title,
      description,
      buttonText,
      buttonLink,
      order: order || 0,
      isActive: isActive !== undefined ? isActive : true,
    });

    res.status(201).json({
      status: 'success',
      data: slide,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Update a hero slide
 * @route   PUT /api/content/hero-slides/:id
 * @access  Private/Admin
 */
exports.updateHeroSlide = async (req, res) => {
  try {
    const {
      type,
      imageSrc,
      videoSrc,
      poster,
      title,
      description,
      buttonText,
      buttonLink,
      order,
      isActive,
    } = req.body;

    const slide = await HeroSlide.findById(req.params.id);

    if (!slide) {
      return res.status(404).json({
        status: 'fail',
        message: 'Slide not found',
      });
    }

    // Update fields
    slide.type = type || slide.type;
    slide.imageSrc = imageSrc !== undefined ? imageSrc : slide.imageSrc;
    slide.videoSrc = videoSrc !== undefined ? videoSrc : slide.videoSrc;
    slide.poster = poster !== undefined ? poster : slide.poster;
    slide.title = title !== undefined ? title : slide.title;
    slide.description =
      description !== undefined ? description : slide.description;
    slide.buttonText = buttonText !== undefined ? buttonText : slide.buttonText;
    slide.buttonLink = buttonLink !== undefined ? buttonLink : slide.buttonLink;
    slide.order = order !== undefined ? order : slide.order;
    slide.isActive = isActive !== undefined ? isActive : slide.isActive;

    const updatedSlide = await slide.save();

    res.status(200).json({
      status: 'success',
      data: updatedSlide,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Delete a hero slide
 * @route   DELETE /api/content/hero-slides/:id
 * @access  Private/Admin
 */
exports.deleteHeroSlide = async (req, res) => {
  try {
    const slide = await HeroSlide.findById(req.params.id);

    if (!slide) {
      return res.status(404).json({
        status: 'fail',
        message: 'Slide not found',
      });
    }

    await HeroSlide.findByIdAndDelete(req.params.id);

    res.status(200).json({
      status: 'success',
      message: 'Slide deleted successfully',
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

// ============================================
// SITE SETTINGS SECTION
// ============================================

/**
 * @desc    Get site settings
 * @route   GET /api/content/settings
 * @access  Public
 */
exports.getSiteSettings = async (req, res) => {
  try {
    const settings = await SiteSettings.getSettings();

    res.status(200).json({
      status: 'success',
      data: settings,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

// ============================================
// ANNOUNCEMENT BAR SECTION
// ============================================

/**
 * @desc    Get announcement bar settings
 * @route   GET /api/content/announcement-bar
 * @access  Public
 */
exports.getAnnouncementBar = async (req, res) => {
  try {
    const settings = await AnnouncementBar.getSettings();

    res.status(200).json({
      status: 'success',
      data: settings,
    });
  } catch (error) {
    console.error('ERROR in getAnnouncementBar:', error);
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Update announcement bar settings
 * @route   PUT /api/content/announcement-bar
 * @access  Private/Admin
 */
exports.updateAnnouncementBar = async (req, res) => {
  try {
    const settings = await AnnouncementBar.getSettings();

    // Update permitted fields
    const restrictedFields = ['_id', '__v', 'createdAt', 'updatedAt'];
    Object.keys(req.body).forEach((key) => {
      if (!restrictedFields.includes(key)) {
        settings[key] = req.body[key];
      }
    });

    const updatedSettings = await settings.save();

    res.status(200).json({
      status: 'success',
      data: updatedSettings,
    });
  } catch (error) {
    console.error('ERROR in updateAnnouncementBar:', error);
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Update site settings
 * @route   PUT /api/content/settings
 * @access  Private/Admin
 */
exports.updateSiteSettings = async (req, res) => {
  try {
    const settings = await SiteSettings.getSettings();

    // Update fields if provided
    if (req.body.topBar) {
      settings.topBar = { ...settings.topBar, ...req.body.topBar };
    }
    if (req.body.footer) {
      settings.footer = { ...settings.footer, ...req.body.footer };
    }
    if (req.body.legalPages) {
      if (req.body.legalPages.termsAndConditions) {
        settings.legalPages.termsAndConditions = {
          ...settings.legalPages.termsAndConditions,
          ...req.body.legalPages.termsAndConditions,
          lastUpdated: Date.now(),
        };
      }
      if (req.body.legalPages.privacyPolicy) {
        settings.legalPages.privacyPolicy = {
          ...settings.legalPages.privacyPolicy,
          ...req.body.legalPages.privacyPolicy,
          lastUpdated: Date.now(),
        };
      }
    }

    const updatedSettings = await settings.save();

    res.status(200).json({
      status: 'success',
      data: updatedSettings,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

// ============================================
// SALES BANNERS SECTION
// ============================================

/**
 * @desc    Get all active sales banners
 * @route   GET /api/content/sales-banners
 * @access  Public
 */
exports.getSalesBanners = async (req, res) => {
  try {
    const banners = await SalesBanner.find({ isActive: true }).sort({
      order: 1,
    });

    res.status(200).json({
      status: 'success',
      results: banners.length,
      data: banners,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Get all sales banners including inactive (Admin)
 * @route   GET /api/content/sales-banners/admin/all
 * @access  Private/Admin
 */
exports.getAllSalesBannersAdmin = async (req, res) => {
  try {
    const banners = await SalesBanner.find().sort({ order: 1 });

    res.status(200).json({
      status: 'success',
      results: banners.length,
      data: banners,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Create a new sales banner
 * @route   POST /api/content/sales-banners
 * @access  Private/Admin
 */
exports.createSalesBanner = async (req, res) => {
  try {
    const banner = await SalesBanner.create(req.body);

    res.status(201).json({
      status: 'success',
      data: banner,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Update a sales banner
 * @route   PUT /api/content/sales-banners/:id
 * @access  Private/Admin
 */
exports.updateSalesBanner = async (req, res) => {
  try {
    const banner = await SalesBanner.findByIdAndUpdate(
      req.params.id,
      req.body,
      {
        new: true,
        runValidators: true,
      },
    );

    if (!banner) {
      return res.status(404).json({
        status: 'fail',
        message: 'Banner not found',
      });
    }

    res.status(200).json({
      status: 'success',
      data: banner,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Delete a sales banner
 * @route   DELETE /api/content/sales-banners/:id
 * @access  Private/Admin
 */
exports.deleteSalesBanner = async (req, res) => {
  try {
    const banner = await SalesBanner.findByIdAndDelete(req.params.id);

    if (!banner) {
      return res.status(404).json({
        status: 'fail',
        message: 'Banner not found',
      });
    }

    res.status(200).json({
      status: 'success',
      message: 'Banner deleted successfully',
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Delete all sales banners
 * @route   DELETE /api/content/sales-banners
 * @access  Private/Admin
 */
exports.deleteAllSalesBanners = async (req, res) => {
  try {
    await SalesBanner.deleteMany({});

    res.status(200).json({
      status: 'success',
      message: 'All banners deleted successfully',
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};
// ============================================
// FEATURED BANNERS SECTION
// ============================================

/**
 * @desc    Get all active featured banners
 * @route   GET /api/content/featured-banners
 * @access  Public
 */
exports.getFeaturedBanners = async (req, res) => {
  try {
    const banners = await FeaturedBanner.find({ isActive: true });

    res.status(200).json({
      status: 'success',
      results: banners.length,
      data: banners,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Get all featured banners including inactive (Admin)
 * @route   GET /api/content/featured-banners/admin/all
 * @access  Private/Admin
 */
exports.getAllFeaturedBannersAdmin = async (req, res) => {
  try {
    const banners = await FeaturedBanner.find();

    res.status(200).json({
      status: 'success',
      results: banners.length,
      data: banners,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Create a new featured banner
 * @route   POST /api/content/featured-banners
 * @access  Private/Admin
 */
exports.createFeaturedBanner = async (req, res) => {
  try {
    const banner = await FeaturedBanner.create(req.body);

    res.status(201).json({
      status: 'success',
      data: banner,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Update a featured banner
 * @route   PUT /api/content/featured-banners/:id
 * @access  Private/Admin
 */
exports.updateFeaturedBanner = async (req, res) => {
  try {
    const banner = await FeaturedBanner.findByIdAndUpdate(
      req.params.id,
      req.body,
      {
        new: true,
        runValidators: true,
      },
    );

    if (!banner) {
      return res.status(404).json({
        status: 'fail',
        message: 'Banner not found',
      });
    }

    res.status(200).json({
      status: 'success',
      data: banner,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Delete a featured banner
 * @route   DELETE /api/content/featured-banners/:id
 * @access  Private/Admin
 */
exports.deleteFeaturedBanner = async (req, res) => {
  try {
    const banner = await FeaturedBanner.findByIdAndDelete(req.params.id);

    if (!banner) {
      return res.status(404).json({
        status: 'fail',
        message: 'Banner not found',
      });
    }

    res.status(200).json({
      status: 'success',
      message: 'Banner deleted successfully',
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Delete all featured banners
 * @route   DELETE /api/content/featured-banners
 * @access  Private/Admin
 */
exports.deleteAllFeaturedBanners = async (req, res) => {
  try {
    await FeaturedBanner.deleteMany({});

    res.status(200).json({
      status: 'success',
      message: 'All banners deleted successfully',
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

// ============================================
// WHY CHOOSE US SECTION
// ============================================

/**
 * @desc    Get Why Choose Us settings
 * @route   GET /api/content/why-choose-us
 * @access  Public
 */
exports.getWhyChooseUs = async (req, res) => {
  try {
    const settings = await WhyChooseUs.getSettings();
    res.status(200).json({
      status: 'success',
      data: settings,
    });
  } catch (error) {
    res.status(500).json({
      status: 'fail',
      message: error.message,
    });
  }
};

/**
 * @desc    Update Why Choose Us settings
 * @route   PUT /api/content/why-choose-us
 * @access  Private/Admin
 */
exports.updateWhyChooseUs = async (req, res) => {
  try {
    const settings = await WhyChooseUs.getSettings();

    const restrictedFields = ['_id', '__v', 'createdAt', 'updatedAt'];
    Object.keys(req.body).forEach((key) => {
      if (!restrictedFields.includes(key)) {
        settings[key] = req.body[key];
      }
    });

    const updated = await settings.save();
    res.status(200).json({
      status: 'success',
      data: updated,
    });
  } catch (error) {
    res.status(400).json({
      status: 'fail',
      message: error.message,
    });
  }
};