fix: enhance logging structure by adding missing log event types and improving error handling in API

src/api.rs

@@ -6,7 +6,7 @@ use serde_json::json;
 
 use crate::{
     data_mgt::AssetTracker,
-    logs::{LogEventType, log_event},
+    logs::{LogEventBody, LogEventLine, LogEventType, log_event},
 };
 
 #[derive(Deserialize, Debug)]
@@ -24,10 +24,12 @@ async fn api_upload(
 ) -> Result<HttpResponse, actix_web::Error> {
     // Convert to bytes
     let content_bytes = if body.content_type == "text/plain" {
-        body.content.as_bytes().to_vec() // UTF-8 bytes
+        body.content.as_bytes().to_vec()
     } else {
-        // Decode base64 → bytes
-        general_purpose::STANDARD.decode(&body.content).unwrap()
+        match general_purpose::STANDARD.decode(&body.content) {
+            Ok(bytes) => bytes,
+            Err(_) => return Ok(HttpResponse::BadRequest().body("Invalid base64 payload")),
+        }
     };
     let connection_info = req.connection_info();
     let uploader_ip = connection_info
@@ -86,40 +88,6 @@ struct ActivityItem {
     timestamp: String,
 }
 
-#[derive(Deserialize)]
-struct LogEventLine {
-    time: String,
-    event: LogEventBody,
-}
-
-#[derive(Deserialize)]
-enum LogEventBody {
-    AssetUploaded(LogAsset),
-    AssetDeleted(LogAsset),
-    HttpRequest(LogHttpRequest),
-}
-
-#[derive(Deserialize)]
-struct LogAsset {
-    id: String,
-    share_duration: u32,
-    created_at: i64,
-    expires_at: i64,
-    mime: String,
-    uploader_ip: Option<String>,
-}
-
-#[derive(Deserialize)]
-struct LogHttpRequest {
-    method: String,
-    path: String,
-    query_string: String,
-    scheme: String,
-    ip: String,
-    real_ip: String,
-    user_agent: String,
-}
-
 #[get("/api/stats")]
 async fn api_stats(assets: web::Data<AssetTracker>) -> Result<HttpResponse, actix_web::Error> {
     use crate::LOG_DIR;