//
// Copyright (c) 2019 Nathan E. Walczak
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

import Foundation

class AccountViewModel {
    
    let account: Account
    
    init(account: Account) {
        self.account = account
    }
    
    var name: String {
        account.name
    }
    
    var balance: String {
        formatBalance(account.balance)
    }
    
}

let formatBalance: ((Double) -> String) = {
    let formatter = NumberFormatter()
    formatter.numberStyle = .currency
    
    return { (balance: Double) in
        formatter.string(from: NSNumber(value: balance)) ?? "\(balance)"
    }
}()

extension AccountViewModel {
    
    static var examples: [AccountViewModel] {
        let accounts = [
            Account(name: "Savings", balance: 1_456.87),
            Account(name: "Checking", balance: 0.23),
            Account(name: "Roth IRA", balance: 1_234_567_890.92)
        ]
        return accounts.map(AccountViewModel.init)
    }
    
}
