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import Foundation
class DanbooruPostParser {
private let data: Data
init(data: Data) {
self.data = data
}
func parse() -> [BooruPost] {
let decoder = JSONDecoder()
decoder.dateDecodingStrategy = .custom { decoder in
self.parseDate(
try (try decoder.singleValueContainer()).decode(String.self)
) ?? Date()
}
do {
return try decoder.decode([DanbooruPost].self, from: data).compactMap { post in
post.toBooruPost()
}
} catch {
return []
}
}
private func parseDate(_ input: String) -> Date? {
let isoFormatter = ISO8601DateFormatter()
isoFormatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
if let date = isoFormatter.date(from: input) {
return date
}
let alternativeFormatter = DateFormatter()
alternativeFormatter.dateFormat = "EEE MMM dd HH:mm:ss Z yyyy"
alternativeFormatter.locale = Locale(identifier: "en_US_POSIX")
if let date = alternativeFormatter.date(from: input) {
return date
}
if let timestamp = Double(input) {
return Date(timeIntervalSince1970: timestamp)
}
return nil
}
}
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