add: utility functions for table and pager

- Add insert_item method to SimpleTable for flexible row insertion
- Add show_in_pager function for system pager support

1 files changed, 32 insertions, 0 deletions

diff --git a/src/utils/input.rs b/src/utils/input.rs
index a728c77..219fe1b 100644
--- a/src/utils/input.rs
+++ b/src/utils/input.rs
@@ -103,3 +103,35 @@ pub async fn input_with_editor(
 
     Ok(processed_content)
 }
+
+/// Show text using the system pager (less)
+/// Opens the system pager (less) with the given text content written to the specified file
+/// If less is not found, directly outputs the content to stdout
+pub async fn show_in_pager(
+    content: impl AsRef<str>,
+    cache_file: impl AsRef<std::path::Path>,
+) -> Result<(), std::io::Error> {
+    let content_str = content.as_ref();
+    let cache_path = cache_file.as_ref();
+
+    // Write content to cache file
+    fs::write(cache_path, content_str).await?;
+
+    // Try to use less first
+    let status = Command::new("less").arg(cache_path).status().await;
+
+    match status {
+        Ok(status) if status.success() => Ok(()),
+        _ => {
+            // If less failed, output directly to stdout
+            use tokio::io::{self, AsyncWriteExt};
+            let mut stdout = io::stdout();
+            stdout
+                .write_all(content_str.as_bytes())
+                .await
+                .expect("Failed to write content");
+            stdout.flush().await.expect("Failed to flush stdout");
+            Ok(())
+        }
+    }
+}