plumb all known attachments via dbus if known

kordophoned/src/daemon/models/attachment.rs

@@ -0,0 +1,64 @@
+use std::path::PathBuf;
+
+#[derive(Debug, Clone)]
+pub struct AttachmentMetadata {
+    pub attribution_info: Option<AttributionInfo>,
+}
+
+#[derive(Debug, Clone)]
+pub struct AttributionInfo {
+    pub width: Option<u32>,
+    pub height: Option<u32>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Attachment {
+    pub guid: String,
+    pub base_path: PathBuf,
+    pub metadata: Option<AttachmentMetadata>,
+}
+
+impl Attachment {
+    pub fn get_path(&self, preview: bool) -> PathBuf {
+        self.base_path.with_extension(if preview { "preview" } else { "full" })
+    }
+
+    pub fn is_downloaded(&self, preview: bool) -> bool {
+        std::fs::exists(&self.get_path(preview))
+            .expect(format!("Wasn't able to check for the existence of an attachment file path at {}", &self.get_path(preview).display()).as_str())
+    }
+} 
+
+impl From<kordophone::model::message::AttachmentMetadata> for AttachmentMetadata {
+    fn from(metadata: kordophone::model::message::AttachmentMetadata) -> Self {
+        Self {
+            attribution_info: metadata.attribution_info.map(|info| info.into()),
+        }
+    }
+}
+
+impl From<kordophone::model::message::AttributionInfo> for AttributionInfo {
+    fn from(info: kordophone::model::message::AttributionInfo) -> Self {
+        Self {
+            width: info.width,
+            height: info.height,
+        }
+    }
+}
+
+impl From<AttachmentMetadata> for kordophone::model::message::AttachmentMetadata {
+    fn from(metadata: AttachmentMetadata) -> Self {
+        Self {
+            attribution_info: metadata.attribution_info.map(|info| info.into()),
+        }
+    }
+}
+
+impl From<AttributionInfo> for kordophone::model::message::AttributionInfo {
+    fn from(info: AttributionInfo) -> Self {
+        Self {
+            width: info.width,
+            height: info.height,
+        }
+    }
+}