Refactor using Tauri (#278)

crates/gpapi/src/gateway/parse_gateways.rs

@@ -0,0 +1,63 @@
+use roxmltree::Document;
+
+use super::{Gateway, PriorityRule};
+
+pub(crate) fn parse_gateways(doc: &Document) -> Option<Vec<Gateway>> {
+  let node_gateways = doc.descendants().find(|n| n.has_tag_name("gateways"))?;
+  let list_gateway = node_gateways
+    .descendants()
+    .find(|n| n.has_tag_name("list"))?;
+
+  let gateways = list_gateway
+    .children()
+    .filter_map(|gateway_item| {
+      if !gateway_item.has_tag_name("entry") {
+        return None;
+      }
+      let address = gateway_item.attribute("name").unwrap_or("").to_string();
+      let name = gateway_item
+        .children()
+        .find(|n| n.has_tag_name("description"))
+        .and_then(|n| n.text())
+        .unwrap_or("")
+        .to_string();
+      let priority = gateway_item
+        .children()
+        .find(|n| n.has_tag_name("priority"))
+        .and_then(|n| n.text())
+        .and_then(|s| s.parse().ok())
+        .unwrap_or(u32::MAX);
+      let priority_rules = gateway_item
+        .children()
+        .find(|n| n.has_tag_name("priority-rule"))
+        .map(|n| {
+          n.children()
+            .filter_map(|n| {
+              if !n.has_tag_name("entry") {
+                return None;
+              }
+              let name = n.attribute("name").unwrap_or("").to_string();
+              let priority: u32 = n
+                .children()
+                .find(|n| n.has_tag_name("priority"))
+                .and_then(|n| n.text())
+                .and_then(|s| s.parse().ok())
+                .unwrap_or(u32::MAX);
+
+              Some(PriorityRule { name, priority })
+            })
+            .collect()
+        })
+        .unwrap_or_default();
+
+      Some(Gateway {
+        name,
+        address,
+        priority,
+        priority_rules,
+      })
+    })
+    .collect();
+
+  Some(gateways)
+}