//
//  ProfileViewController.swift
//  SwiftWarplyFramework
//
//  Created by Manos Chorianopoulos on 22/5/25.
//

import UIKit

@objc public class ProfileViewController: UIViewController {
    @IBOutlet weak var tableView: UITableView!
    
    // MARK: - Initializers
    public convenience init() {
        self.init(nibName: "ProfileViewController", bundle: MyEmptyClass.resourceBundle())
    }
    
    public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
    }
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }

    // MARK: - Dummy Data
    let allOffers: [OfferModel] = [
        // Προτάσεις για εσένα
        OfferModel(
            category: "Προτάσεις για εσένα",
            title: "15% έκπτωση",
            description: "σε όλα τα προϊόντα",
            discount: "15%",
            discountType: "percentage",
            bannerImage: "musa_banner",
            merchantLogo: "musa_logo",
            expirationDate: "έως 30-09",
            color: 0x09914E,
            isFavorite: true,
            active: false,
            redeemed: false
        ),
        OfferModel(
            category: "Προτάσεις για εσένα",
            title: "10% έκπτωση",
            description: "στην κατασκήνωση στο The Ranch",
            discount: "10%",
            discountType: "percentage",
            bannerImage: "ranch_banner",
            merchantLogo: "ranch_logo",
            expirationDate: "έως 30-09",
            color: 0xFC9F25,
            isFavorite: false,
            active: false,
            redeemed: false
        ),
        OfferModel(
            category: "Προτάσεις για εσένα",
            title: "1+1 εισιτήριο",
            description: "δώρο στην είσοδο του παιδότοπου",
            discount: "1+1",
            discountType: "buyOneGetOne",
            bannerImage: "ranch_banner",
            merchantLogo: "ranch_logo",
            expirationDate: "έως 30-09",
            color: 0xFC9F25,
            isFavorite: true,
            active: false,
            redeemed: false
        ),
        OfferModel(
            category: "Προτάσεις για εσένα",
            title: "10% έκπτωση",
            description: "σε όλες τις υπηρεσίες",
            discount: "10%",
            discountType: "percentage",
            bannerImage: "ninemia_banner",
            merchantLogo: "ninemia_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: false,
            active: false,
            redeemed: false
        ),
        OfferModel(
            category: "Προτάσεις για εσένα",
            title: "10% έκπτωση",
            description: "για αγορές από τα φυσικά καταστήματα",
            discount: "10%",
            discountType: "percentage",
            bannerImage: "moustakas_banner",
            merchantLogo: "moustakas_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: true,
            active: false,
            redeemed: false
        ),
        // Active
        OfferModel(
            category: "Top offers",
            title: "Μόνο 17,95",
            description: "2 πίτσες & Coca-Cola 1,5lt",
            discount: "17,95€",
            discountType: "price",
            bannerImage: "dominos_banner",
            merchantLogo: "dominos_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: true,
            active: true,
            redeemed: false
        ),
        OfferModel(
            category: "Φαγητό και καφές",
            title: "2€ έκπτωση",
            description: "στην αγορά σου",
            discount: "2€",
            discountType: "amount",
            bannerImage: "coffeeisland_banner",
            merchantLogo: "coffeeisland_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: false,
            active: true,
            redeemed: false
        ),
        OfferModel(
            category: "Top offers",
            title: "10% έκπτωση",
            description: "σε γλυκούς πειρασμούς",
            discount: "10%",
            discountType: "percentage",
            bannerImage: "zuccherino_banner",
            merchantLogo: "zuccherino_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: false,
            active: true,
            redeemed: false
        ),
        // Απόδραση
        OfferModel(
            category: "Απόδραση",
            title: "10% έκπτωση",
            description: "στην διαμονή/διασκέδαση σου",
            discount: "10%",
            discountType: "percentage",
            bannerImage: "ninemia_banner",
            merchantLogo: "ninemia_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: true,
            active: false,
            redeemed: true
        ),
        OfferModel(
            category: "Παιδί",
            title: "1+1 Δώρο",
            description: "στην είσοδο του παιδότοπου",
            discount: "1+1",
            discountType: "buyOneGetOne",
            bannerImage: "moustakas_banner",
            merchantLogo: "moustakas_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: false,
            active: false,
            redeemed: true
        ),
        // Αγορές
        OfferModel(
            category: "Αγορές",
            title: "15€ έκπτωση",
            description: "για αγορές",
            discount: "15€",
            discountType: "amount",
            bannerImage: "migato_banner",
            merchantLogo: "migato_logo",
            expirationDate: "έως 30-09",
            color: 0xEE417D,
            isFavorite: false,
            active: false,
            redeemed: true
        )
    ]
    
    let couponFilters: [CouponFilterModel] = [
        CouponFilterModel(title: "Ενεργά"),
        CouponFilterModel(title: "Αγαπημένα"),
        CouponFilterModel(title: "Εξαργυρωμένα")
    ]
    
    var couponFilterSelected: CouponFilterModel = CouponFilterModel(title: "Ενεργά")

    var forYouOffersSection: SectionModel?
    var activeOffersSection: SectionModel?
    var favoriteOffersSection: SectionModel?
    var redeemedOffersSection: SectionModel?
    var filteredOffersSection: SectionModel?
    
    public override func viewDidLoad() {
        super.viewDidLoad()

        // Show navigation bar for this screen (with back button)
        self.navigationController?.setNavigationBarHidden(false, animated: false)
        setBackButton()
        setNavigationTitle("Το προφίλ μου")

        // Register XIBs for table view cells
         tableView.register(UINib(nibName: "ProfileHeaderTableViewCell", bundle: MyEmptyClass.resourceBundle()), forCellReuseIdentifier: "ProfileHeaderTableViewCell")
         tableView.register(UINib(nibName: "ProfileQuestionnaireTableViewCell", bundle: MyEmptyClass.resourceBundle()), forCellReuseIdentifier: "ProfileQuestionnaireTableViewCell")
         tableView.register(UINib(nibName: "MyRewardsOffersScrollTableViewCell", bundle: MyEmptyClass.resourceBundle()), forCellReuseIdentifier: "MyRewardsOffersScrollTableViewCell")
         tableView.register(UINib(nibName: "ProfileCouponFiltersTableViewCell", bundle: MyEmptyClass.resourceBundle()), forCellReuseIdentifier: "ProfileCouponFiltersTableViewCell")
         tableView.register(UINib(nibName: "ProfileCouponTableViewCell", bundle: MyEmptyClass.resourceBundle()), forCellReuseIdentifier: "ProfileCouponTableViewCell")
        
        // Set up table view
        tableView.delegate = self
        tableView.dataSource = self
        tableView.separatorStyle = .none
        tableView.estimatedRowHeight = 200
        tableView.rowHeight = UITableView.automaticDimension
        
        initializeSections()
    }

    // MARK: Function
    func initializeSections() {
        // Προτάσεις για εσένα
        let forYouOffers = allOffers.filter { $0.category == "Προτάσεις για εσένα" }
        forYouOffersSection = SectionModel(
            title: "Προτάσεις για εσένα",
            count: forYouOffers.count,
            offers: forYouOffers
        )

        // Favorite Offers
        let activeOffers = allOffers.filter { $0.active ?? false }
        activeOffersSection = SectionModel(
            title: "Ενεργά",
            count: activeOffers.count,
            offers: activeOffers
        )
        
        filteredOffersSection = activeOffersSection

        // Favorite Offers
        let favoriteOffers = allOffers.filter { $0.isFavorite }
        favoriteOffersSection = SectionModel(
            title: "Αγαπημένα",
            count: favoriteOffers.count,
            offers: favoriteOffers
        )

        // Favorite Offers
        let redeemedOffers = allOffers.filter { $0.redeemed ?? false }
        redeemedOffersSection = SectionModel(
            title: "Εξαργυρωμένα",
            count: redeemedOffers.count,
            offers: redeemedOffers
        )

        self.tableView.reloadData()
    }
    
    private func openCouponViewController(with offer: OfferModel) {
        let vc = SwiftWarplyFramework.CouponViewController(nibName: "CouponViewController", bundle: MyEmptyClass.resourceBundle())
        vc.coupon = offer
        
        self.navigationController?.pushViewController(vc, animated: true)
    }
    
    private func handleFilterPress(with filter: CouponFilterModel) {
        switch (filter.title) {
            case "Ενεργά":
                self.filteredOffersSection = activeOffersSection
            case "Αγαπημένα":
                self.filteredOffersSection = favoriteOffersSection
            case "Εξαργυρωμένα":
                self.filteredOffersSection = redeemedOffersSection
            default:
                self.filteredOffersSection = activeOffersSection
        }
    }
}

// MARK: - TableView
extension ProfileViewController: UITableViewDelegate, UITableViewDataSource {
    
    public func numberOfSections(in tableView: UITableView) -> Int {
        // return 4 + (filteredOffersSection?.offers.count ?? 0)
        return 5
    }
    
    public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // return 1
        if (section <= 3) {
            return 1
        } else {
            return filteredOffersSection?.offers.count ?? 0
        }
    }
    
    public func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return UITableView.automaticDimension
    }
    
    public func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        return nil
//        if (section <= 3) {
//            return nil
//        } else {
//            // Return clear view for spacing
////            let headerView = UIView()
//            let headerView = UIView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 19))
//            headerView.backgroundColor = UIColor.white
//            return headerView
//        }
    }

    public func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return 0.0
//        if (section <= 3) {
//            return 0.0
//        } else {
//            return 19.0
//        }
    }

    public func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
//        return CGFloat.leastNormalMagnitude
        return 0.0
    }

    public func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
        return nil
    }
    
    public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        if (indexPath.section == 0) {
            let cell = tableView.dequeueReusableCell(withIdentifier: "ProfileHeaderTableViewCell", for: indexPath) as! ProfileHeaderTableViewCell
//            cell.delegate = self  // Set the banner offers delegate
//            cell.configureCell(data: self.bannerOffersSection)
//            cell.parent = self
            return cell
            
        } else if (indexPath.section == 1) {
            let cell = tableView.dequeueReusableCell(withIdentifier: "ProfileQuestionnaireTableViewCell", for: indexPath) as! ProfileQuestionnaireTableViewCell
            return cell
            
        } else if (indexPath.section == 2) {
            let cell = tableView.dequeueReusableCell(withIdentifier: "MyRewardsOffersScrollTableViewCell", for: indexPath) as! MyRewardsOffersScrollTableViewCell
            
            cell.delegate = self  // Set the offers delegate
            cell.configureCell(data: self.forYouOffersSection, isInProfile: true)
        
            return cell
            
        } else if (indexPath.section == 3) {
            let cell = tableView.dequeueReusableCell(withIdentifier: "ProfileCouponFiltersTableViewCell", for: indexPath) as! ProfileCouponFiltersTableViewCell
            
            cell.delegate = self  // Set the offers delegate
            cell.configureCell(data: self.couponFilters, couponFilterSelected: self.couponFilterSelected)
        
            return cell
            
        } else {
            let cell = tableView.dequeueReusableCell(withIdentifier: "ProfileCouponTableViewCell", for: indexPath) as! ProfileCouponTableViewCell
            if let offer = self.filteredOffersSection?.offers[indexPath.row] {
                cell.configureCell(data: offer)
            }
            return cell
        }
        
    }
    
    public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        if (indexPath.section <= 3) {
            // Do nothing
        } else {
            if let offer = self.filteredOffersSection?.offers[indexPath.row] {
                openCouponViewController(with: offer)
            }
        }
    }
}

// Add delegate conformance
extension ProfileViewController: MyRewardsOffersScrollTableViewCellDelegate {
    func didSelectOffer(_ offer: OfferModel) {
        // Navigate to CouponViewController
        openCouponViewController(with: offer)
    }
}

// Add delegate conformance
extension ProfileViewController: ProfileCouponFiltersTableViewCellDelegate {
    func didSelectFilter(_ filter: CouponFilterModel) {
        self.couponFilterSelected = filter
        handleFilterPress(with: filter)
        self.tableView.reloadData()
    }
}