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post: extract build_post from post view

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I need to test this function because there is a bug with nostr: mentions
This commit is contained in:
William Casarin
2023-07-12 17:35:01 -07:00
parent 6481f96488
commit 201e9a427f
1 changed files with 50 additions and 44 deletions
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94
damus/Views/PostView.swift
View File

@@ -76,55 +76,14 @@ struct PostView: View {
}
func send_post() {
var kind: NostrKind = .text
if case .replying_to(let ev) = action, ev.known_kind == .chat {
kind = .chat
}
post.enumerateAttributes(in: NSRange(location: 0, length: post.length), options: []) { attributes, range, stop in
if let link = attributes[.link] as? String {
let normalized_link: String
if link.hasPrefix("damus:nostr:") {
// Replace damus:nostr: URI prefix with nostr: since the former is for internal navigation and not meant to be posted.
normalized_link = String(link.dropFirst(6))
} else {
normalized_link = link
}
// Add zero-width space in case text preceding the mention is not a whitespace.
// In the case where the character preceding the mention is a whitespace, the added zero-width space will be stripped out.
post.replaceCharacters(in: range, with: "\u{200B}\(normalized_link)\u{200B}")
}
}
var content = self.post.string
// If two zero-width spaces are next to each other, normalize it to just one zero-width space.
.replacingOccurrences(of: "\u{200B}\u{200B}", with: "\u{200B}")
// If zero-width space is next to an actual whitespace, remove the zero-width space.
.replacingOccurrences(of: " \u{200B}", with: " ")
.replacingOccurrences(of: "\u{200B} ", with: " ")
.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines)
let imagesString = uploadedMedias.map { $0.uploadedURL.absoluteString }.joined(separator: " ")
let img_meta_tags = uploadedMedias.compactMap { $0.metadata?.to_tag() }
if !imagesString.isEmpty {
content.append(" " + imagesString + " ")
}
if case .quoting(let ev) = action, let id = bech32_note_id(ev.id) {
content.append(" nostr:" + id)
}
let new_post = NostrPost(content: content, references: references, kind: kind, tags: img_meta_tags)
let new_post = build_post(post: self.post, action: action, uploadedMedias: uploadedMedias, references: references)
NotificationCenter.default.post(name: .post, object: NostrPostResult.post(new_post))
clear_draft()
dismiss()
}
var is_post_empty: Bool {
@@ -595,3 +554,50 @@ func load_draft_for_post(drafts: Drafts, action: PostAction) -> DraftArtifacts?
return drafts.post
}
}
func build_post(post: NSMutableAttributedString, action: PostAction, uploadedMedias: [UploadedMedia], references: [ReferencedId]) -> NostrPost {
var kind: NostrKind = .text
if case .replying_to(let ev) = action, ev.known_kind == .chat {
kind = .chat
}
post.enumerateAttributes(in: NSRange(location: 0, length: post.length), options: []) { attributes, range, stop in
if let link = attributes[.link] as? String {
let normalized_link: String
if link.hasPrefix("damus:nostr:") {
// Replace damus:nostr: URI prefix with nostr: since the former is for internal navigation and not meant to be posted.
normalized_link = String(link.dropFirst(6))
} else {
normalized_link = link
}
// Add zero-width space in case text preceding the mention is not a whitespace.
// In the case where the character preceding the mention is a whitespace, the added zero-width space will be stripped out.
post.replaceCharacters(in: range, with: "\u{200B}\(normalized_link)\u{200B}")
}
}
var content = post.string
// If two zero-width spaces are next to each other, normalize it to just one zero-width space.
.replacingOccurrences(of: "\u{200B}\u{200B}", with: "\u{200B}")
// If zero-width space is next to an actual whitespace, remove the zero-width space.
.replacingOccurrences(of: " \u{200B}", with: " ")
.replacingOccurrences(of: "\u{200B} ", with: " ")
.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines)
let imagesString = uploadedMedias.map { $0.uploadedURL.absoluteString }.joined(separator: " ")
let img_meta_tags = uploadedMedias.compactMap { $0.metadata?.to_tag() }
if !imagesString.isEmpty {
content.append(" " + imagesString + " ")
}
if case .quoting(let ev) = action, let id = bech32_note_id(ev.id) {
content.append(" nostr:" + id)
}
return NostrPost(content: content, references: references, kind: kind, tags: img_meta_tags)
}