first commit

src/store/base_data.rs

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+use serde::{Deserialize, Serialize};
+use time::OffsetDateTime;
+
+/// Base data that all OSIRIS objects must include
+/// Similar to heromodels BaseModelData but adapted for OSIRIS
+#[derive(Debug, Serialize, Deserialize, PartialEq, Clone)]
+pub struct BaseData {
+    /// Unique ID (auto-generated or user-assigned)
+    pub id: String,
+    
+    /// Namespace this object belongs to
+    pub ns: String,
+    
+    /// Unix timestamp for creation time
+    #[serde(with = "time::serde::timestamp")]
+    pub created_at: OffsetDateTime,
+    
+    /// Unix timestamp for last modification time
+    #[serde(with = "time::serde::timestamp")]
+    pub modified_at: OffsetDateTime,
+    
+    /// Optional MIME type
+    pub mime: Option<String>,
+    
+    /// Content size in bytes
+    pub size: Option<u64>,
+}
+
+impl BaseData {
+    /// Create new base data with generated UUID
+    pub fn new(ns: String) -> Self {
+        let now = OffsetDateTime::now_utc();
+        Self {
+            id: uuid::Uuid::new_v4().to_string(),
+            ns,
+            created_at: now,
+            modified_at: now,
+            mime: None,
+            size: None,
+        }
+    }
+    
+    /// Create new base data with specific ID
+    pub fn with_id(id: String, ns: String) -> Self {
+        let now = OffsetDateTime::now_utc();
+        Self {
+            id,
+            ns,
+            created_at: now,
+            modified_at: now,
+            mime: None,
+            size: None,
+        }
+    }
+    
+    /// Update the modified timestamp
+    pub fn update_modified(&mut self) {
+        self.modified_at = OffsetDateTime::now_utc();
+    }
+    
+    /// Set the MIME type
+    pub fn set_mime(&mut self, mime: Option<String>) {
+        self.mime = mime;
+        self.update_modified();
+    }
+    
+    /// Set the size
+    pub fn set_size(&mut self, size: Option<u64>) {
+        self.size = size;
+        self.update_modified();
+    }
+}
+
+impl Default for BaseData {
+    fn default() -> Self {
+        Self::new(String::from("default"))
+    }
+}