155 lines
3.9 KiB
Swift
155 lines
3.9 KiB
Swift
//
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// RedditLink.swift
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// Account
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//
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// Created by Maurice Parker on 5/4/20.
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// Copyright © 2020 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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final class RedditLink: Codable {
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let kind: String?
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let data: RedditLinkData?
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enum CodingKeys: String, CodingKey {
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case kind = "kind"
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case data = "data"
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}
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}
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final class RedditLinkData: Codable {
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let title: String?
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let permalink: String?
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let url: String?
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let id: String?
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let subredditNamePrefixed: String?
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let selfHTML: String?
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let selfText: String?
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let postHint: String?
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let author: String?
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let created: Double?
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let isVideo: Bool?
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let media: RedditMedia?
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let mediaEmbed: RedditMediaEmbed?
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let preview: RedditPreview?
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let crossPostParents: [RedditLinkData]?
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enum CodingKeys: String, CodingKey {
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case title = "title"
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case permalink = "permalink"
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case url = "url"
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case id = "id"
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case subredditNamePrefixed = "subreddit_name_prefixed"
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case selfHTML = "selftext_html"
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case selfText = "selftext"
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case postHint = "post_hint"
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case author = "author"
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case created = "created_utc"
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case isVideo = "is_video"
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case media = "media"
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case mediaEmbed = "media_embed"
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case preview = "preview"
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case crossPostParents = "crosspost_parent_list"
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}
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var createdDate: Date? {
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guard let created = created else { return nil }
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return Date(timeIntervalSince1970: created)
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}
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func renderAsHTML() -> String {
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if let parent = crossPostParents?.first {
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var html = "<blockquote>"
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if let subreddit = parent.subredditNamePrefixed {
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html += "<p><a href=\"https://www.reddit.com/\(subreddit)\">\(subreddit)</a></p>"
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}
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let parentHTML = parent.renderAsHTML()
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if parentHTML.isEmpty {
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html += renderURLAsHTML()
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} else {
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html += parentHTML
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}
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html += "</blockquote>"
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return html
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}
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var html = String()
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if let selfHTML = selfHTML {
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html += selfHTML
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}
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html += renderURLAsHTML()
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return html
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}
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func renderURLAsHTML() -> String {
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guard let url = url else { return "" }
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if url.hasSuffix(".gif") {
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return "<img src=\"\(url)\">"
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}
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if isVideo ?? false, let videoURL = media?.video?.hlsURL {
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var html = "<video "
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if let previewImageURL = preview?.images?.first?.source?.url {
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html += "poster=\"\(previewImageURL)\" "
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}
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if let width = media?.video?.width, let height = media?.video?.height {
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html += "width=\"\(width)\" height=\"\(height)\" "
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}
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html += "src=\"\(videoURL)\"></video>"
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return html
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}
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if let videoPreviewURL = preview?.videoPreview?.url {
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var html = "<video "
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if let previewImageURL = preview?.images?.first?.source?.url {
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html += "poster=\"\(previewImageURL)\" "
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}
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if let width = preview?.videoPreview?.width, let height = preview?.videoPreview?.height {
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html += "width=\"\(width)\" height=\"\(height)\" "
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}
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html += "src=\"\(videoPreviewURL)\"></video>"
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html += linkOutURL(url)
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return html
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}
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if !url.hasPrefix("https://imgur.com"), let mediaEmbedContent = mediaEmbed?.content {
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return mediaEmbedContent
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}
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if let imageSource = preview?.images?.first?.source, let imageURL = imageSource.url {
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var html = "<a href=\"\(url)\"><img src=\"\(imageURL)\" "
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if postHint == "link" {
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html += "class=\"nnw-nozoom\" "
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}
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if let width = imageSource.width, let height = imageSource.height {
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html += "width=\"\(width)\" height=\"\(height)\" "
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}
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html += "></a>"
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html += linkOutURL(url)
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return html
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}
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return linkOutURL(url)
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}
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func linkOutURL(_ url: String) -> String {
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guard let urlComponents = URLComponents(string: url), let host = urlComponents.host else {
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return ""
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}
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guard !host.hasSuffix("reddit.com") && !host.hasSuffix("redd.it") else {
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return ""
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}
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var displayURL = "\(urlComponents.host ?? "")\(urlComponents.path)"
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if displayURL.count > 30 {
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displayURL = "\(displayURL.prefix(30))..."
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}
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return "<div><a href=\"\(url)\">\(displayURL)</a></div>"
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}
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}
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