UICollectionView

import UIKit

class User {
var username: String
var profilePhoto: UIImage
var rating: Double
var numberOfPhotos: Int
var numberOfDialogs: Int
var numberOfFriends: Int
var dialogs: [Dialog] // add an array of dialogs
    
    init(username: String, profilePhoto: UIImage, rating: Double, numberOfPhotos: Int, numberOfDialogs: Int, numberOfFriends: Int, dialogs: [Dialog]) {
        self.username = username
        self.profilePhoto = profilePhoto
        self.rating = rating
        self.numberOfPhotos = numberOfPhotos
        self.numberOfDialogs = numberOfDialogs
        self.numberOfFriends = numberOfFriends
        self.dialogs = dialogs
    }

}

class Dialog {
    var participants: [User]
    var duration: Int // in minutes
    var isContinued: Bool
    var ratings: [Double] // anonymous ratings
    init(participants: [User], duration: Int, isContinued: Bool, ratings: [Double]) {
        self.participants = participants
        self.duration = duration
        self.isContinued = isContinued
        self.ratings = ratings
    }
}

class UserProfileViewController: UIViewController {
    var user: User
    init(user: User) { // add a constructor
        self.user = user
        super.init(nibName: nil, bundle: nil)
    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // setup UI with user's information
        // ...
    }

    // function for calculating user's overall rating based on ratings from dialogs
    func calculateOverallRating() -> Double {
        let totalRatings = user.numberOfDialogs * 5 // assuming all dialogs have 5 ratings
        var sumOfRatings = Double(user.numberOfDialogs) * user.rating // assuming all ratings are equal to user's rating if not rated yet

        for rating in user.dialogs.flatMap({$0.ratings}) { // get all ratings from all dialogs
            sumOfRatings += rating
        }
        return sumOfRatings / Double(totalRatings)
    }
}

class DialogCollectionViewCell: UICollectionViewCell {
    @IBOutlet weak var participantsLabel: UILabel!
    @IBOutlet weak var durationLabel: UILabel!
    @IBOutlet weak var ratingLabel: UILabel!
    func configure(with dialog: Dialog) {
        participantsLabel.text = dialog.participants.map({$0.username}).joined(separator: ", ")
        durationLabel.text = "\(dialog.duration) min"
        let averageRating = dialog.ratings.reduce(0, +) / Double(dialog.ratings.count)
        ratingLabel.text = String(format: "%.1f", averageRating)
    }
}

class UserProfileCollectionViewCell: UICollectionViewCell {
    @IBOutlet weak var profilePhotoImageView: UIImageView!
    @IBOutlet weak var usernameLabel: UILabel!
    @IBOutlet weak var ratingLabel: UILabel!
    @IBOutlet weak var numberOfPhotosLabel: UILabel!
    @IBOutlet weak var numberOfDialogsLabel: UILabel!
    @IBOutlet weak var numberOfFriendsLabel: UILabel!
    func configure(with user: User) {
        profilePhotoImageView.image = user.profilePhoto
        usernameLabel.text = user.username
        ratingLabel.text = String(format: "%.1f", user.rating)
        numberOfPhotosLabel.text = "\(user.numberOfPhotos) photos"
        numberOfDialogsLabel.text = "\(user.numberOfDialogs) dialogs"
        numberOfFriendsLabel.text = "\(user.numberOfFriends) friends"
    }
}

class MyCollectionViewDataSource: NSObject, UICollectionViewDataSource {
    
    let user: User = User(username: "John Doe", profilePhoto: UIImage(), rating: 4.5, numberOfPhotos: 10, numberOfDialogs: 3, numberOfFriends: 20, dialogs: [Dialog]())
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        // Повертає кількість елементів в секції колекції
        return 0
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        // Код для налаштування та повернення комірки колекції
        return UICollectionViewCell()
    }
}




    var dialogs: [Dialog] = [    Dialog(participants: [User](), duration: 30, isContinued: false, ratings: [4, 5, 3]),
        Dialog(participants: [User](), duration: 60, isContinued: true, ratings: [4, 3, 4, 5, 2]),
        Dialog(participants: [User](), duration: 45, isContinued: false, ratings: [5, 5, 5])
    ]

class MyCollectionView: UICollectionView, UICollectionViewDataSource, UICollectionViewDelegate {
    
    override func awakeFromNib() {
        super.awakeFromNib()
        dataSource = self
        delegate = self
        register(UINib(nibName: "UserProfileCollectionViewCell", bundle: nil), forCellWithReuseIdentifier: "UserProfileCollectionViewCell")
        register(UINib(nibName: "DialogCollectionViewCell", bundle: nil), forCellWithReuseIdentifier: "DialogCollectionViewCell")
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return 0 // повернути кількість елементів в секції
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        return UICollectionViewCell() // повернути створену клітинку для заданого індексу
    }
    
    // додаткові методи для обробки подій делегатів
}