A code snippet for code reviewer assignment

RandomReviewerGenerator.swift

final class Reviewer {
    let name: String
    var revieweesCount: Int
    
    init(name: String) {
        self.name = name
        self.revieweesCount = 0
    }
}

extension Reviewer: Equatable {
    static func ==(_ lhs: Reviewer, _ rhs: Reviewer) -> Bool {
        lhs.name == rhs.name
    }
}

final class ReviewManager {
    private let devs = [Reviewer(name: "Dosbol"),
                        Reviewer(name: "Kudaibergen"),
                        Reviewer(name: "Nurtugan"),
                        Reviewer(name: "Ulan"),
                        Reviewer(name: "Yerassyl")]
    private var reviewersMap = [String: [String]]()
    private let revieweesCount: Int
    
    init(revieweesCount: Int) {
        self.revieweesCount = revieweesCount
    }
    
    func buildReviewersMap() {
        for dev in devs {
            let reviewersPair = getReviewerPair(for: dev)
            reviewersMap[dev.name] = reviewersPair
        }
    }
    
    func getReviewersMap() -> [String: [String]] {
        reviewersMap
    }
    
    private func getReviewerPair(for dev: Reviewer) -> [String] {
        var reviewers = [String]()
        var tempDevs = devs.filter { $0 != dev }
        var assignedReviewers = [Reviewer]()
        for _ in 0..<revieweesCount {
            tempDevs = tempDevs.filter { !assignedReviewers.contains($0) && $0.revieweesCount < revieweesCount }
            let reviewer = getReviewer(from: tempDevs)
            assignedReviewers.append(reviewer)
            reviewers.append(reviewer.name)
        }
        
        return reviewers
    }
    
    private func getReviewer(from filteredDevs: [Reviewer]) -> Reviewer {
        var reviewer: Reviewer?
        while reviewer == nil {
            let tempReviewer = filteredDevs[Int.random(in: 0..<filteredDevs.count)]
            if tempReviewer.revieweesCount < revieweesCount {
                tempReviewer.revieweesCount += 1
                reviewer = tempReviewer
            }
        }
        
        return reviewer!
    }
}



let reviewManager = ReviewManager(revieweesCount: 1)
reviewManager.buildReviewersMap()
let reviewersMap = reviewManager.getReviewersMap()
print(reviewersMap)