logging, formatting in previews/mod.rs

src/previews/mod.rs

@@ -1,6 +1,7 @@
 use crate::util::hash::Hash;
 use crate::{database::UpEndDatabase, util::hash::b58_encode};
 use anyhow::{anyhow, Result};
+use log::{debug, trace};
 use std::{
     collections::HashMap,
     fs::File,
@@ -9,15 +10,15 @@ use std::{
     sync::{Arc, Mutex},
 };
 
+use self::audio::AudioPath;
 use self::image::ImagePath;
 use self::text::TextPath;
 use self::video::VideoPath;
-use self::audio::AudioPath;
 
+pub mod audio;
 pub mod image;
 pub mod text;
 pub mod video;
-pub mod audio;
 
 pub trait Previewable {
     fn get_thumbnail(&self) -> Result<Option<Vec<u8>>>;
@@ -52,11 +53,14 @@ impl PreviewStore {
     }
 
     pub fn get(&self, hash: Hash) -> Result<Option<PathBuf>> {
+        debug!("Preview for {hash:?} requested...");
         let path_mutex = self.get_path(&hash);
         let thumbpath = path_mutex.lock().unwrap();
         if thumbpath.exists() {
+            trace!("Preview for {hash:?} already exists, returning {thumbpath:?}");
             Ok(Some(thumbpath.clone()))
         } else {
+            trace!("Calculating preview for {hash:?}...");
             let connection = self.db.connection()?;
             let files = connection.retrieve_file(&hash)?;
             if let Some(file) = files.get(0) {
@@ -75,6 +79,8 @@ impl PreviewStore {
                     _ => Err(anyhow!("Unknown file type, or file doesn't exist.")),
                 }?;
 
+                trace!("Got preview for {hash:?}.");
+
                 if let Some(data) = preview {
                     std::fs::create_dir_all(&self.path)?;
                     let mut file = File::create(&*thumbpath)?;