feat: integrate EXIF data extraction using nom-exif and refactor related components

Cargo.lock

@@ -1661,6 +1661,7 @@ dependencies = [
  "bytes",
  "chrono",
  "futures",
+ "nom-exif",
  "serde",
  "thiserror 2.0.17",
  "uuid",
@@ -1714,7 +1715,6 @@ dependencies = [
  "image",
  "libertas_core",
  "libertas_infra",
- "nom-exif",
  "serde",
  "serde_json",
  "sqlx",

libertas_core/Cargo.toml

@@ -12,3 +12,4 @@ futures = "0.3.31"
 thiserror = "2.0.17"
 uuid = {version = "1.18.1", features = ["v4", "serde"] }
 serde = { version = "1.0.228", features = ["derive"] }
+nom-exif = { version = "2.5.4", features = ["serde", "async", "tokio"] }

libertas_core/src/lib.rs

@@ -6,3 +6,4 @@ pub mod plugins;
 pub mod repositories;
 pub mod schema;
 pub mod services;
+pub mod media_utils;

libertas_core/src/media_utils.rs

@@ -0,0 +1,71 @@
+use std::path::Path;
+
+use chrono::{DateTime, NaiveDateTime, Utc};
+use nom_exif::{AsyncMediaParser, AsyncMediaSource, Exif, ExifIter, ExifTag};
+
+use crate::error::{CoreError, CoreResult};
+
+#[derive(Default, Debug)]
+pub struct ExtractedExif {
+    pub width: Option<i32>,
+    pub height: Option<i32>,
+    pub location: Option<String>,
+    pub date_taken: Option<DateTime<Utc>>,
+}
+
+fn parse_exif_datetime(s: &str) -> Option<DateTime<Utc>> {
+    NaiveDateTime::parse_from_str(s, "%Y:%m:%d %H:%M:%S")
+        .ok()
+        .map(|ndt| ndt.and_local_timezone(Utc).unwrap())
+}
+
+pub async fn extract_exif_data(file_path: &Path) -> CoreResult<ExtractedExif> {
+    let ms = AsyncMediaSource::file_path(file_path)
+        .await
+        .map_err(|e| CoreError::Unknown(format!("Failed to open file for EXIF: {}", e)))?;
+
+    if !ms.has_exif() {
+        return Ok(ExtractedExif::default());
+    }
+
+    let mut parser = AsyncMediaParser::new();
+    let iter: ExifIter = match parser.parse(ms).await {
+        Ok(iter) => iter,
+        Err(e) => {
+            println!("Could not parse EXIF: {}", e);
+            return Ok(ExtractedExif::default());
+        }
+    };
+
+    let location = iter.parse_gps_info().ok().flatten().map(|g| g.format_iso6709());
+    let exif: Exif = iter.into();
+
+    let width = exif
+        .get(ExifTag::ExifImageWidth)
+        .and_then(|f| f.as_u32())
+        .map(|v| v as i32);
+
+    let height = exif
+        .get(ExifTag::ExifImageHeight)
+        .and_then(|f| f.as_u32())
+        .map(|v| v as i32);
+
+    let dt_original = exif
+        .get(ExifTag::DateTimeOriginal)
+        .and_then(|f| f.as_str())
+        .and_then(parse_exif_datetime);
+    
+    let dt_modify = exif
+        .get(ExifTag::ModifyDate)
+        .and_then(|f| f.as_str())
+        .and_then(parse_exif_datetime);
+
+    let date_taken = dt_original.or(dt_modify);
+
+    Ok(ExtractedExif {
+        width,
+        height,
+        location,
+        date_taken,
+    })
+}

libertas_importer/src/main.rs

@@ -1,15 +1,21 @@
-use std::{path::{Path, PathBuf}, sync::Arc};
 use anyhow::Result;
+use std::{
+    path::{Path, PathBuf},
+    sync::Arc,
+};
 
-use chrono::{DateTime, Datelike, NaiveDateTime, Utc};
+use chrono::Datelike;
 use clap::Parser;
-use libertas_core::{config::Config, error::{CoreError, CoreResult}, models::{Media, User}, repositories::{MediaRepository, UserRepository}};
+use libertas_core::{
+    config::Config, error::{CoreError, CoreResult}, media_utils::extract_exif_data, models::{Media, User}, repositories::{MediaRepository, UserRepository}
+};
 use libertas_infra::factory::{build_database_pool, build_media_repository, build_user_repository};
-use nom_exif::{AsyncMediaParser, AsyncMediaSource, Exif, ExifIter, ExifTag};
+use nom_exif::{AsyncMediaParser, AsyncMediaSource, ExifIter};
+use serde_json;
 use sha2::{Digest, Sha256};
+use tokio::fs;
 use uuid::Uuid;
 use walkdir::WalkDir;
-use tokio::fs;
 
 mod config;
 
@@ -34,7 +40,10 @@ struct ImporterState {
 #[tokio::main]
 async fn main() -> Result<()> {
     let cli = Cli::parse();
-    println!("Starting import for user: '{}' from path '{}'...", cli.username, cli.path);
+    println!(
+        "Starting import for user: '{}' from path '{}'...",
+        cli.username, cli.path
+    );
 
     let config = config::load_config()?;
     let db_pool = build_database_pool(&config.database).await?;
@@ -70,7 +79,7 @@ async fn main() -> Result<()> {
             match process_file(path, &user, &state).await {
                 Ok(media) => {
                     println!("-> Imported: '{}'", media.original_filename);
-                },
+                }
                 Err(e) => {
                     eprintln!("!! Skipped: '{}' (Reason: {})", path.display(), e);
                 }
@@ -83,11 +92,7 @@ async fn main() -> Result<()> {
     Ok(())
 }
 
-async fn process_file(
+async fn process_file(file_path: &Path, user: &User, state: &ImporterState) -> CoreResult<Media> {
-    file_path: &Path,
-    user: &User,
-    state: &ImporterState,
-) -> CoreResult<Media> {
     let file_bytes = fs::read(file_path).await?;
     let file_size = file_bytes.len() as i64;
     let hash = format!("{:x}", Sha256::digest(&file_bytes));
@@ -107,32 +112,56 @@ async fn process_file(
         ));
     }
 
-    let (width, height, location, date_taken) =
+    let (width, height, location, date_taken) = match extract_exif_data(file_path).await {
+        Ok(data) => {
+            println!("   -> Parsed EXIF: DateTimeOriginal={:?}, GPS={:?}", data.date_taken, data.location);
+            (data.width, data.height, data.location, data.date_taken)
+        },
+        Err(e) => {
+            eprintln!("   -> EXIF parsing failed for {}: {}. Skipping.", file_path.display(), e);
+            (None, None, None, None)
+        }
+    };
+
     match AsyncMediaSource::file_path(file_path).await {
         Ok(ms) => {
             if ms.has_exif() {
                 let mut parser = AsyncMediaParser::new();
-                    if let Ok(iter) = parser.parse::<_,_, ExifIter>(ms).await {
+                if let Ok(iter) = parser.parse::<_, _, ExifIter>(ms).await {
-                        let gps = iter.parse_gps_info().ok().flatten().map(|g| g.format_iso6709());
+                    let values = iter
-                        println!("   -> EXIF GPS Info: {:?}", gps);
+                        .into_iter()
-                        let exif: Exif = iter.into();
+                        .filter_map(|mut x| {
-                        let modified_date = exif.get(ExifTag::ModifyDate).and_then(|f| f.as_str()).and_then(parse_exif_datetime);
+                            let res = x.take_result();
-                        println!("   -> EXIF ModifyDate: {:?}", modified_date);
+                            match res {
-                        let w = exif.get(ExifTag::ExifImageWidth).and_then(|f| f.as_u32()).map(|v| v as i32);
+                                Ok(v) => Some((
-                        println!("   -> EXIF ExifImageWidth: {:?}", w);
+                                    x.tag().map(|x| x.to_string()).unwrap_or_else(|| {
-                        let h = exif.get(ExifTag::ExifImageHeight).and_then(|f| f.as_u32()).map(|v| v as i32);
+                                        format!("Unknown(0x{:04x})", x.tag_code())
-                        println!("   -> EXIF ExifImageHeight: {:?}", h);
+                                    }),
-                        let dt = exif.get(ExifTag::DateTimeOriginal).and_then(|f| f.as_str()).and_then(parse_exif_datetime);
+                                    v,
-                        println!("   -> EXIF DateTimeOriginal: {:?}", dt);
+                                )),
-                        (w, h, gps, dt)
+                                Err(e) => {
+                                    println!(
+                                        "   !! EXIF parsing error for tag 0x{:04x}: {}",
+                                        x.tag_code(),
+                                        e
+                                    );
+                                    None
+                                }
+                            }
+                        })
+                        .collect::<Vec<_>>();
+
+                    values.iter().for_each(|x| {
+                        println!("{:<32}=> {}", x.0, x.1);
+                    });
                 } else {
-                        (None, None, None, None)
+                    ()
                 }
             } else {
-                    (None, None, None, None)
+                ()
             }
         }
-            Err(_) => (None, None, None, None),
+        Err(_) => (),
     };
 
     let file_date = date_taken.unwrap_or_else(|| chrono::Utc::now());
@@ -174,21 +203,17 @@ async fn process_file(
     };
 
     state.media_repo.create(&media_model).await?;
-    state.user_repo
+    state
+        .user_repo
         .update_storage_used(user.id, file_size)
         .await?;
 
     let job_payload = serde_json::json!({ "media_id": media_model.id });
-    state.nats_client
+    state
+        .nats_client
         .publish("media.new".to_string(), job_payload.to_string().into())
         .await
         .map_err(|e| CoreError::Unknown(format!("Failed to publish NATS message: {}", e)))?;
 
     Ok(media_model)
 }
-
-fn parse_exif_datetime(s: &str) -> Option<DateTime<Utc>> {
-    NaiveDateTime::parse_from_str(s, "%Y:%m:%d %H:%M:%S")
-        .ok()
-        .map(|ndt| ndt.and_local_timezone(Utc).unwrap())
-}

libertas_worker/Cargo.toml

@@ -22,7 +22,6 @@ sqlx = { version = "0.8.6", features = [
 futures-util = "0.3.31"
 bytes = "1.10.1"
 uuid = { version = "1.18.1", features = ["v4", "serde"] }
-nom-exif = { version = "2.5.4", features = ["serde", "tokio", "async"] }
 async-trait = "0.1.89"
 xmp_toolkit = "1.11.0"
 chrono = "0.4.42"

libertas_worker/src/plugins/exif_reader.rs

@@ -1,13 +1,9 @@
 use async_trait::async_trait;
-use chrono::{DateTime, NaiveDateTime, Utc};
 use std::path::PathBuf;
 
 use libertas_core::{
-    error::{CoreError, CoreResult},
+    error::CoreResult, media_utils::extract_exif_data, models::Media, plugins::{MediaProcessorPlugin, PluginContext, PluginData}
-    models::Media,
-    plugins::{MediaProcessorPlugin, PluginContext, PluginData},
 };
-use nom_exif::{AsyncMediaParser, AsyncMediaSource, Exif, ExifIter, ExifTag};
 
 pub struct ExifReaderPlugin;
 
@@ -20,51 +16,15 @@ impl MediaProcessorPlugin for ExifReaderPlugin {
     async fn process(&self, media: &Media, context: &PluginContext) -> CoreResult<PluginData> {
         let file_path = PathBuf::from(&context.media_library_path).join(&media.storage_path);
 
-        let ms = match AsyncMediaSource::file_path(file_path).await {
+        let (width, height, location, date_taken) = match extract_exif_data(&file_path).await {
-            Ok(ms) => ms,
+            Ok(data) => (data.width, data.height, data.location, data.date_taken),
-            Err(e) => return Err(CoreError::Unknown(format!("Failed to open a file: {}", e))),
-        };
-
-        if !ms.has_exif() {
-            return Ok(PluginData {
-                message: "No EXIF data found in file.".to_string(),
-            });
-        }
-
-        let mut parser = AsyncMediaParser::new();
-        let iter: ExifIter = match parser.parse(ms).await {
-            Ok(iter) => iter,
             Err(e) => {
-                // It's not a fatal error, just means parsing failed (e.g., corrupt data)
                 return Ok(PluginData {
                     message: format!("Could not parse EXIF: {}", e),
                 });
             }
         };
 
-        let location: Option<String> = match iter.parse_gps_info() {
-            Ok(Some(gps_info)) => Some(gps_info.format_iso6709()),
-            Ok(None) => None,
-            Err(_) => None,
-        };
-
-        let exif: Exif = iter.into();
-
-        let width = exif
-            .get(ExifTag::ExifImageWidth)
-            .and_then(|f| f.as_u32())
-            .map(|v| v as i32);
-
-        let height = exif
-            .get(ExifTag::ExifImageHeight)
-            .and_then(|f| f.as_u32())
-            .map(|v| v as i32);
-
-        let date_taken = exif
-            .get(ExifTag::DateTimeOriginal)
-            .and_then(|f| f.as_str())
-            .and_then(parse_exif_datetime);
-
         if width.is_some() || height.is_some() || location.is_some() || date_taken.is_some() {
             context
                 .media_repo
@@ -83,10 +43,3 @@ impl MediaProcessorPlugin for ExifReaderPlugin {
         }
     }
 }
-
-fn parse_exif_datetime(s: &str) -> Option<DateTime<Utc>> {
-    // EXIF datetime format is 'YYYY:MM:DD HH:MM:SS'
-    NaiveDateTime::parse_from_str(s, "%Y:%m:%d %H:%M:%S")
-        .ok()
-        .map(|ndt| ndt.and_local_timezone(Utc).unwrap())
-}