extract twitter message handling logic

1 files changed, 46 insertions, 0 deletions

diff --git a/tw/user.rs b/tw/user.rs
new file mode 100644
index 0000000..1da82f0
--- /dev/null
+++ b/tw/user.rs
@@ -0,0 +1,46 @@
+extern crate serde_json;
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct User {
+    pub id: String,
+    pub name: String,
+    pub handle: String
+}
+
+impl Default for User {
+    fn default() -> User {
+        User {
+            id: "".to_owned(),
+            name: "_default_".to_owned(),
+            handle: "_default_".to_owned()
+        }
+    }
+}
+
+impl User {
+    pub fn from_json(json: serde_json::Value) -> Option<User> {
+        if let serde_json::Value::Object(json_map) = json {
+            if json_map.contains_key("id_str") &&
+               json_map.contains_key("name") &&
+               json_map.contains_key("screen_name") {
+                if let (
+                    Some(id_str),
+                    Some(name),
+                    Some(screen_name)
+                ) = (
+                    json_map["id_str"].as_str(),
+                    json_map["name"].as_str(),
+                    json_map["screen_name"].as_str()
+                ) {
+                    return Some(User {
+                        id: id_str.to_owned(),
+                        name: name.to_owned(),
+                        handle: screen_name.to_owned()
+                    })
+                }
+            }
+        }
+        None
+    }
+}
+