Add url & opengraph card previews

Cargo.toml

@@ -42,6 +42,7 @@ itertools = "0.13.0"
 rodio = "0.19.0"
 strum = { version = "0.26.3", features = ["derive"] }
 tokio-stream = { version = "0.1.16", features = ["fs"] }
+url = "2.5.0"
 
 # change to 1.2.0 when it is released https://github.com/frewsxcv/rust-dark-light/issues/38
 dark-light = { git = "https://github.com/frewsxcv/rust-dark-light", rev = "3eb3e93dd0fa30733c3e93082dd9517fb580ae95" }

data/Cargo.toml

@@ -40,6 +40,7 @@ const_format = "0.2.32"
 strum = { version = "0.26.3", features = ["derive"] }
 derive_more = { version = "1.0.0", features = ["full"] }
 anyhow = "1.0.91"
+image = "0.24.9"
 
 [dependencies.irc]
 path = "../irc"

data/src/environment.rs

@@ -30,6 +30,12 @@ pub fn data_dir() -> PathBuf {
     })
 }
 
+pub fn cache_dir() -> PathBuf {
+    dirs_next::cache_dir()
+        .expect("expected valid cache dir")
+        .join("halloy")
+}
+
 /// Checks if a config file exists in the same directory as the executable.
 /// If so, it'll use that directory for both config & data dirs.
 fn portable_dir() -> Option<PathBuf> {

data/src/history.rs

@@ -573,6 +573,8 @@ fn has_matching_content(message: &Message, other: &Message) -> bool {
 #[derive(Debug)]
 pub struct View<'a> {
     pub total: usize,
+    pub has_more_older_messages: bool,
+    pub has_more_newer_messages: bool,
     pub old_messages: Vec<&'a Message>,
     pub new_messages: Vec<&'a Message>,
     pub max_nick_chars: Option<usize>,

data/src/history/manager.rs

@@ -652,8 +652,14 @@ impl Data {
             })
             .unwrap_or_default();
 
+        let first_without_limit = filtered.first().copied();
+        let last_without_limit = filtered.last().copied();
+
         let limited = with_limit(limit, filtered.into_iter());
 
+        let first_with_limit = limited.first();
+        let last_with_limit = limited.last();
+
         let split_at = read_marker.map_or(0, |read_marker| {
             limited
                 .iter()
@@ -674,8 +680,23 @@ impl Data {
 
         let (old, new) = limited.split_at(split_at);
 
+        let has_more_older_messages =
+            first_without_limit
+                .zip(first_with_limit)
+                .is_some_and(|(without_limit, with_limit)| {
+                    without_limit.server_time < with_limit.server_time
+                });
+        let has_more_newer_messages =
+            last_without_limit
+                .zip(last_with_limit)
+                .is_some_and(|(without_limit, with_limit)| {
+                    without_limit.server_time > with_limit.server_time
+                });
+
         Some(history::View {
             total,
+            has_more_older_messages,
+            has_more_newer_messages,
             old_messages: old.to_vec(),
             new_messages: new.to_vec(),
             max_nick_chars,

data/src/lib.rs

@@ -9,6 +9,7 @@ pub use self::input::Input;
 pub use self::message::Message;
 pub use self::mode::Mode;
 pub use self::pane::Pane;
+pub use self::preview::Preview;
 pub use self::server::Server;
 pub use self::shortcut::Shortcut;
 pub use self::url::Url;
@@ -36,6 +37,7 @@ pub mod log;
 pub mod message;
 pub mod mode;
 pub mod pane;
+pub mod preview;
 pub mod server;
 pub mod shortcut;
 pub mod stream;

data/src/message.rs

@@ -1,4 +1,5 @@
 use std::borrow::Cow;
+use std::collections::HashSet;
 use std::hash::{DefaultHasher, Hash as _, Hasher};
 use std::iter;
 
@@ -167,6 +168,7 @@ pub struct Message {
     pub content: Content,
     pub id: Option<String>,
     pub hash: Hash,
+    pub hidden_urls: HashSet<Url>,
 }
 
 impl Message {
@@ -255,6 +257,7 @@ impl Message {
             content,
             id,
             hash,
+            hidden_urls: HashSet::default(),
         })
     }
 
@@ -270,6 +273,7 @@ impl Message {
             content,
             id: None,
             hash,
+            hidden_urls: HashSet::default(),
         }
     }
 
@@ -293,6 +297,7 @@ impl Message {
             content,
             id: None,
             hash,
+            hidden_urls: HashSet::default(),
         }
     }
 
@@ -312,6 +317,7 @@ impl Message {
             content,
             id: None,
             hash,
+            hidden_urls: HashSet::default(),
         }
     }
 
@@ -341,6 +347,7 @@ impl Message {
             content,
             id: None,
             hash,
+            hidden_urls: HashSet::default(),
         }
     }
 
@@ -449,11 +456,12 @@ impl<'de> Deserialize<'de> for Message {
             content,
             id,
             hash,
+            hidden_urls: HashSet::default(),
         })
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct Hash(u64);
 
 impl Hash {
@@ -652,6 +660,14 @@ pub enum Fragment {
 }
 
 impl Fragment {
+    pub fn url(&self) -> Option<&Url> {
+        if let Self::Url(url) = self {
+            Some(url)
+        } else {
+            None
+        }
+    }
+
     pub fn as_str(&self) -> &str {
         match self {
             Fragment::Text(s) => s,

data/src/message/broadcast.rs

@@ -1,4 +1,6 @@
 //! Generate messages that can be broadcast into every buffer
+use std::collections::HashSet;
+
 use chrono::{DateTime, Utc};
 
 use super::{parse_fragments, plain, source, Content, Direction, Message, Source, Target};
@@ -32,6 +34,7 @@ fn expand(
             content,
             id: None,
             hash,
+            hidden_urls: HashSet::default(),
         }
     };