//
//  ReactionViewModel.swift
//  Freetime
//
//  Created by Ryan Nystrom on 6/1/17.
//  Copyright © 2017 Ryan Nystrom. All rights reserved.
//

import Foundation

struct ReactionViewModel {

    let content: ReactionContent
    let count: Int
    let viewerDidReact: Bool
    let users: [String]

}

func createReactionDetailText(model: ReactionViewModel) -> String {
    let users = model.users
    switch users.count {
    case 0:
        return ""
    case 1:
        let format = NSLocalizedString("%@", comment: "")
        return String(format: format, users[0])
    case 2:
        let format = NSLocalizedString("%@ and %@", comment: "")
        return String(format: format, arguments: [users[0], users[1]])
    default:
        assert(users.count >= 3)
        if model.count > 3 {
            let difference = model.count - users.count
            let format = NSLocalizedString("%@, %@, %@ and %d other(s)", comment: "")
            return String(format: format, arguments: [users[0], users[1], users[2], difference])
        } else {
            let format = NSLocalizedString("%@, %@ and %@", comment: "")
            return String(format: format, arguments: [users[0], users[1], users[2]])
        }
    }
}