37 lines
1.4 KiB
Swift
37 lines
1.4 KiB
Swift
import Foundation
|
|
|
|
enum InputValidator {
|
|
private static let mastodonCharacterLimit = 500
|
|
private static let maxImages = 4
|
|
private static let maxImageBytes = 15 * 1024 * 1024
|
|
|
|
static func validatePost(text: String, images: [ImageAttachment], accounts: [Account]) throws {
|
|
let trimmed = text.trimmingCharacters(in: .whitespacesAndNewlines)
|
|
guard !trimmed.isEmpty else {
|
|
throw PostingError(message: "Post cannot be empty.")
|
|
}
|
|
|
|
guard !accounts.isEmpty else {
|
|
throw PostingError(message: "Select at least one account.")
|
|
}
|
|
|
|
guard images.count <= maxImages else {
|
|
throw PostingError(message: "You can attach up to \(maxImages) images.")
|
|
}
|
|
|
|
for image in images {
|
|
guard !image.data.isEmpty else {
|
|
throw PostingError(message: "One of the selected images is empty or unreadable.")
|
|
}
|
|
guard image.data.count <= maxImageBytes else {
|
|
throw PostingError(message: "Image \(image.filename) is too large. Max size is 15 MB.")
|
|
}
|
|
}
|
|
|
|
if accounts.contains(where: { $0.serviceType == .mastodon }) && text.count > mastodonCharacterLimit {
|
|
throw PostingError(
|
|
message: "Mastodon posts are limited to \(mastodonCharacterLimit) characters."
|
|
)
|
|
}
|
|
}
|
|
}
|