SwiftUI/Other Projects/Currency-SwiftUI/Currency-SwiftUI/CurrencyData.swift

//
//  CurrencyData.swift
//  Currency-SwiftUI
//
//  Created by Alex Liu on 2019-06-20.
//  Copyright © 2018 Alex Liu <alexliubo@gmail.com> All rights reserved.
//
//  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
import SwiftUI

struct Currency: Equatable, Hashable, Codable, Identifiable{
    let id: UUID
    let name: String
    
    // This is a rate to USD
    let rate: Double
    let symbol: String
    let code: String
    
    init(name: String, rate: Double, symbol: String = "", code: String) {
        self.id = UUID()
        self.name = name
        self.rate = rate
        self.symbol = symbol
        self.code = code
    }
    
    // Get unicode flag by currency symbol
    var flag: String {
        // Hard-code EU for now
        if self.symbol == "EU" { return "🇪🇺" }
        let base : UInt32 = 127397
        var s = ""
        for v in self.symbol.uppercased().unicodeScalars {
            s.unicodeScalars.append(UnicodeScalar(base + v.value)!)
        }
        
        return s
    }
}