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// yt - A fully featured command line YouTube client
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
use std::mem;
use anyhow::{Result, bail};
use comment::{Comment, CommentExt, Comments, Parent};
use output::display_fmt_and_less;
use regex::Regex;
use yt_dlp::{InfoJson, json_cast};
use crate::{
app::App,
storage::video_database::{Video, get},
unreachable::Unreachable,
};
mod comment;
mod display;
pub mod output;
pub mod description;
pub use description::*;
#[allow(clippy::too_many_lines)]
pub async fn get(app: &App) -> Result<Comments> {
let currently_playing_video: Video =
if let Some(video) = get::currently_focused_video(app).await? {
video
} else {
bail!("Could not find a currently playing video!");
};
let info_json: InfoJson = get::video_info_json(¤tly_playing_video)?.unreachable(
"A currently *playing* video must be cached. And thus the info.json should be available",
);
let base_comments = if let Some(comments) = info_json.get("comments") {
json_cast!(comments, as_array)
} else {
bail!(
"The video ('{}') does not have comments!",
info_json
.get("title")
.map(|val| json_cast!(val, as_str))
.unwrap_or("<No Title>")
)
};
let mut comments = Comments::new();
for c in base_comments {
let c: Comment = serde_json::from_value(c.to_owned())?;
if let Parent::Id(id) = &c.parent {
comments.insert(&(id.clone()), CommentExt::from(c));
} else {
comments.push(CommentExt::from(c));
}
}
comments.vec.iter_mut().for_each(|comment| {
let replies = mem::take(&mut comment.replies);
let mut output_replies: Vec<CommentExt> = vec![];
let re = Regex::new(r"\u{200b}?(@[^\t\s]+)\u{200b}?").unreachable("This is hardcoded");
for reply in replies {
if let Some(replyee_match) = re.captures(&reply.value.text){
let full_match = replyee_match.get(0).unreachable("This will always exist");
let text = reply.
value.
text[0..full_match.start()]
.to_owned()
+
&reply
.value
.text[full_match.end()..];
let text: &str = text.trim().trim_matches('\u{200b}');
let replyee = replyee_match.get(1).unreachable("This should also exist").as_str();
if let Some(parent) = output_replies
.iter_mut()
// .rev()
.flat_map(|com| &mut com.replies)
.flat_map(|com| &mut com.replies)
.flat_map(|com| &mut com.replies)
.filter(|com| com.value.author == replyee)
.last()
{
parent.replies.push(CommentExt::from(Comment {
text: text.to_owned(),
..reply.value
}));
} else if let Some(parent) = output_replies
.iter_mut()
// .rev()
.flat_map(|com| &mut com.replies)
.flat_map(|com| &mut com.replies)
.filter(|com| com.value.author == replyee)
.last()
{
parent.replies.push(CommentExt::from(Comment {
text: text.to_owned(),
..reply.value
}));
} else if let Some(parent) = output_replies
.iter_mut()
// .rev()
.flat_map(|com| &mut com.replies)
.filter(|com| com.value.author == replyee)
.last()
{
parent.replies.push(CommentExt::from(Comment {
text: text.to_owned(),
..reply.value
}));
} else if let Some(parent) = output_replies.iter_mut()
// .rev()
.filter(|com| com.value.author == replyee)
.last()
{
parent.replies.push(CommentExt::from(Comment {
text: text.to_owned(),
..reply.value
}));
} else {
eprintln!(
"Failed to find a parent for ('{}') both directly and via replies! The reply text was:\n'{}'\n",
replyee,
reply.value.text
);
output_replies.push(reply);
}
} else {
output_replies.push(reply);
}
}
comment.replies = output_replies;
});
Ok(comments)
}
pub async fn comments(app: &App) -> Result<()> {
let comments = get(app).await?;
display_fmt_and_less(comments.render(true)).await?;
Ok(())
}
#[cfg(test)]
mod test {
#[test]
fn test_string_replacement() {
let s = "A \n\nB\n\nC".to_owned();
assert_eq!("A \n \n B\n \n C", s.replace('\n', "\n "));
}
}
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