twigs-swift-sdk/Sources/twigs/RecurringTransaction.swift

282 lines
8 KiB
Swift

//
// File.swift
//
//
// Created by William Brawner on 12/22/21.
//
import Foundation
struct RecurringTransaction: Identifiable, Hashable, Codable {
let id: String
let title: String
let description: String?
let frequency: Frequency
let start: Date
let end: Date?
let amount: Int
let categoryId: String?
let expense: Bool
let createdBy: String
let budgetId: String
}
struct Frequency: Hashable, Codable, CustomStringConvertible {
let unit: FrequencyUnit
let count: Int
let time: Time
init?(unit: FrequencyUnit, count: Int, time: Time) {
if count < 1 {
return nil
}
self.unit = unit
self.count = count
self.time = time
}
init?(from string: String) {
let parts = string.split(separator: ";")
guard let count = Int(parts[1]) else {
return nil
}
var timeIndex = 3
switch parts[0] {
case "D":
self.unit = .daily
timeIndex = 2
case "W":
let daysOfWeek = parts[2].split(separator: ",").compactMap { dayOfWeek in
DayOfWeek(rawValue: String(dayOfWeek))
}
if daysOfWeek.isEmpty {
return nil
}
self.unit = .weekly(Set(daysOfWeek))
case "M":
guard let dayOfMonth = DayOfMonth(from: String(parts[2])) else {
return nil
}
self.unit = .monthly(dayOfMonth)
case "Y":
guard let dayOfYear = DayOfYear(from: String(parts[2])) else {
return nil
}
self.unit = .yearly(dayOfYear)
default:
return nil
}
guard let time = Time(from: String(parts[timeIndex])) else {
return nil
}
self.time = time
self.count = count
}
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let frequencyString = try container.decode(String.self)
self.init(from: frequencyString)!
}
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(description)
}
var description: String {
// TODO: Make the backend representation of this more sensible and then use this
// return [unit.description, count.description, time.description].joined(separator: ";")
let unitParts = "\(unit)".split(separator: ";")
if unitParts.count == 1 {
return [unitParts[0].description, count.description, time.description].joined(separator: ";")
} else{
return [unitParts[0].description, count.description, unitParts[1].description, time.description].joined(separator: ";")
}
}
var naturalDescription: String {
return unit.format(count: count, time: time)
}
}
enum FrequencyUnit: Hashable, CustomStringConvertible {
case daily
case weekly(Set<DayOfWeek>)
case monthly(DayOfMonth)
case yearly(DayOfYear)
var description: String {
switch self {
case .daily:
return "D"
case .weekly(let daysOfWeek):
return String(format: "W;%s", daysOfWeek.map { $0.rawValue }.joined(separator: ","))
case .monthly(let dayOfMonth):
return String(format: "M;%s", dayOfMonth.description)
case .yearly(let dayOfYear):
return String(format: "Y;%s", dayOfYear.description)
}
}
func format(count: Int, time: Time) -> String {
switch self {
case .daily:
return String(localized: "Every \(count) day(s) at \(time.description)")
case .weekly(let daysOfWeek):
return String(localized: "Every \(count) week(s) on \(daysOfWeek.description) at \(time.description)")
case .monthly(let dayOfMonth):
return String(localized: "Every \(count) month(s) on the \(dayOfMonth.description) at \(time.description)")
case .yearly(let dayOfYear):
return String(localized: "Every \(count) year(s) on \(dayOfYear.description) at \(time.description)")
}
}
}
struct Time: Hashable, CustomStringConvertible {
let hours: Int
let minutes: Int
let seconds: Int
init?(hours: Int, minutes: Int, seconds: Int) {
if hours < 0 || hours > 23 {
return nil
}
if minutes < 0 || minutes > 59 {
return nil
}
if seconds < 0 || seconds > 59 {
return nil
}
self.hours = hours
self.minutes = minutes
self.seconds = seconds
}
init?(from string: String) {
let parts = string.split(separator: ":").compactMap {
Int($0)
}
if parts.count != 3 {
return nil
}
self.init(hours: parts[0], minutes: parts[1], seconds: parts[2])
}
var description: String {
return String(format: "%02d:%02d:%02d", hours, minutes, seconds)
}
}
enum DayOfMonth: Hashable, CustomStringConvertible {
case positional(Position, DayOfWeek)
case fixed(Int)
init?(position: Position, dayOfWeek: DayOfWeek) {
if position == .day {
return nil
}
self = .positional(position, dayOfWeek)
}
init?(day: Int) {
if day < 1 || day > 31 {
return nil
}
self = .fixed(day)
}
init?(from string: String) {
let parts = string.split(separator: "-")
guard let position = Position.init(rawValue: String(parts[0])) else {
return nil
}
if position == .day {
guard let day = Int(parts[1]) else {
return nil
}
self = .fixed(day)
} else {
guard let dayOfWeek = DayOfWeek(rawValue: String(parts[1])) else {
return nil
}
self = .positional(position, dayOfWeek)
}
}
var description: String {
switch self {
case .positional(let position, let dayOfWeek):
return "\(position)-\(dayOfWeek)"
case .fixed(let day):
return "\(Position.day)-\(day)"
}
}
}
enum Position: String, Hashable {
case day = "DAY"
case first = "FIRST"
case second = "SECOND"
case third = "THIRD"
case fourth = "FOURTH"
case last = "LAST"
}
enum DayOfWeek: String, Hashable {
case monday = "MONDAY"
case tuesday = "TUESDAY"
case wednesday = "WEDNESDAY"
case thursday = "THURSDAY"
case friday = "FRIDAY"
case saturday = "SATURDAY"
case sunday = "SUNDAY"
}
struct DayOfYear: Hashable, CustomStringConvertible {
let month: Int
let day: Int
init?(month: Int, day: Int) {
var maxDay: Int
switch month {
case 2:
maxDay = 29;
break;
case 4, 6, 9, 11:
maxDay = 30;
break;
default:
maxDay = 31;
}
if day < 1 || day > maxDay {
return nil
}
if month < 1 || month > 12 {
return nil
}
self.day = day
self.month = month
}
init?(from string: String) {
let parts = string.split(separator: "-").compactMap {
Int($0)
}
if parts.count < 2 {
return nil
}
self.init(month: parts[0], day: parts[1])
}
var description: String {
return String(format: "%02d-%02d", self.month, self.day)
}
}
protocol RecurringTransactionsRepository {
func getRecurringTransactions(budgetId: String) async throws -> [RecurringTransaction]
func getRecurringTransaction(_ id: String) async throws -> RecurringTransaction
func createRecurringTransaction(_ transaction: RecurringTransaction) async throws -> RecurringTransaction
func updateRecurringTransaction(_ transaction: RecurringTransaction) async throws -> RecurringTransaction
func deleteRecurringTransaction(_ id: String) async throws
}