mastodon-ios/Mastodon/Scene/Onboarding/ServerRules/MastodonServerRulesViewMode...

58 lines
2.1 KiB
Swift

//
// MastodonServerRulesViewModel.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-2-22.
//
import UIKit
import Combine
import MastodonSDK
final class MastodonServerRulesViewModel {
// input
let domain: String
let authenticateInfo: AuthenticationViewModel.AuthenticateInfo
let rules: [Mastodon.Entity.Instance.Rule]
let instance: Mastodon.Entity.Instance
let applicationToken: Mastodon.Entity.Token
init(
domain: String,
authenticateInfo: AuthenticationViewModel.AuthenticateInfo,
rules: [Mastodon.Entity.Instance.Rule],
instance: Mastodon.Entity.Instance,
applicationToken: Mastodon.Entity.Token
) {
self.domain = domain
self.authenticateInfo = authenticateInfo
self.rules = rules
self.instance = instance
self.applicationToken = applicationToken
}
var rulesAttributedString: NSAttributedString {
let attributedString = NSMutableAttributedString(string: "\n")
let configuration = UIImage.SymbolConfiguration(font: .preferredFont(forTextStyle: .title3))
let separatorString = Array(repeating: " ", count: 4).joined()
for (i, rule) in rules.enumerated() {
guard i < 50 else {
return NSAttributedString(string: "\(i)" + separatorString + rule.text + "\n\n")
}
let imageName = String(i + 1) + ".circle.fill"
let image = UIImage(systemName: imageName, withConfiguration: configuration)!
let attachment = NSTextAttachment()
attachment.image = image.withTintColor(Asset.Colors.Label.primary.color)
let imageAttribute = NSMutableAttributedString(attachment: attachment)
imageAttribute.addAttributes([NSAttributedString.Key.baselineOffset : -1.5], range: NSRange(location: 0, length: imageAttribute.length))
let ruleString = NSAttributedString(string: separatorString + rule.text + "\n\n")
attributedString.append(imageAttribute)
attributedString.append(ruleString)
}
return attributedString
}
}