Initial public release of Warp.

Repo-Sync-Origin: warpdotdev/warp-internal@12af1d983b

app/src/code/opened_files.rs

@@ -0,0 +1,69 @@
+//! Module containing the definition of [`OpenedFilesModel`],
+//! which tracks files that have been opened, organized by repository.
+
+use std::{collections::HashMap, path::PathBuf};
+
+use instant::Instant;
+use warpui::{Entity, ModelContext, SingletonEntity};
+
+#[derive(Default, Clone)]
+pub struct OpenedFilesInRepo(HashMap<PathBuf, Instant>);
+
+impl OpenedFilesInRepo {
+    pub fn get(&self, file_path: &PathBuf) -> Option<&Instant> {
+        self.0.get(file_path)
+    }
+
+    pub fn iter(&self) -> impl Iterator<Item = (&PathBuf, &Instant)> {
+        self.0.iter()
+    }
+}
+
+/// Model that tracks files that have been opened, organized by repository.
+/// Maps repository paths to files and when they were last opened.
+#[derive(Default)]
+pub struct OpenedFilesModel {
+    opened_files: HashMap<PathBuf, OpenedFilesInRepo>,
+}
+
+impl Entity for OpenedFilesModel {
+    type Event = ();
+}
+
+impl SingletonEntity for OpenedFilesModel {}
+
+impl OpenedFilesModel {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    /// Get all opened files for a specific repository.
+    pub fn opened_files_for_repo(&self, repo_path: &PathBuf) -> Option<&OpenedFilesInRepo> {
+        self.opened_files.get(repo_path)
+    }
+
+    /// Record that a file has been opened in a repository. If the `file_path` is not within the `repo_path`,
+    /// then the file is not recorded.
+    #[cfg_attr(not(feature = "local_fs"), allow(dead_code))]
+    pub fn file_opened(
+        &mut self,
+        repo_path: PathBuf,
+        file_path: PathBuf,
+        ctx: &mut ModelContext<Self>,
+    ) {
+        let opened_at = Instant::now();
+
+        // Convert absolute file path to relative path from repo root
+        let Ok(relative_file_path) = file_path.strip_prefix(&repo_path) else {
+            return;
+        };
+
+        self.opened_files
+            .entry(repo_path.clone())
+            .or_default()
+            .0
+            .insert(relative_file_path.into(), opened_at);
+
+        ctx.notify();
+    }
+}