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Terminal wrapper for ShoppingList demo
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| // | |
| // Terminal.swift | |
| // | |
| // | |
| // Created by Adalberto Nassu Pompolo on 18/07/24. | |
| // | |
| import Foundation | |
| class Terminal { | |
| static let divider = "----------" | |
| static let help = """ | |
| \(Terminal.divider) | |
| Lista de compras 🛒 | |
| - add: Adiciona um produto. Ex: add:pao | |
| - remove: Remove um produto um produto. Ex: remove:pao | |
| - search: Busca por um produto na lista. Ex: search:pao | |
| - print: Mostra a lista. Ex: print | |
| - quit: Sair do programa | |
| \(Terminal.divider) | |
| """ | |
| static func run(onCommand: (_ command: Command) -> Bool) { | |
| while(true) { | |
| guard let input = readLine() else { | |
| continue | |
| } | |
| guard let command = toCommand(input: input) else { | |
| print(Terminal.help) | |
| continue | |
| } | |
| if !onCommand(command) { | |
| break | |
| } | |
| } | |
| } | |
| static private func toCommand(input: String) -> Command? { | |
| if input == "print" { | |
| return .print | |
| } | |
| if input == "quit" { | |
| return .quit | |
| } | |
| let split = input.components(separatedBy: ":") | |
| guard split.count == 2 else { | |
| return nil | |
| } | |
| let (command, payload) = (split[0], split[1]) | |
| switch command { | |
| case "add": | |
| return .add(product: payload) | |
| case "remove": | |
| return .remove(product: payload) | |
| case "search": | |
| return .search(input: payload) | |
| default: | |
| return nil | |
| } | |
| } | |
| enum Command { | |
| case add(product: String) | |
| case remove(product: String) | |
| case search(input: String) | |
| case print | |
| case quit | |
| } | |
| } |
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