add player response model

src/serializer/text.rs

@@ -0,0 +1,109 @@
+use serde::{Deserialize, Deserializer};
+use serde_with::{serde_as, DeserializeAs};
+
+/// The YouTube API has multiple ways of outputting text. This deserializer
+/// is an attempt to unify them.
+///
+/// ```json
+/// {
+///   "text": "Hello World"
+/// }
+/// ```
+///
+/// ```json
+/// {
+///   "simpleText": "Hello World"
+/// }
+/// ```
+///
+/// Multiple "runs" of text should be joined with spaces
+/// ```json
+/// {
+///   "runs": [
+///     {"text": "Hello"},
+///     {"text": "World"},
+///   ]
+/// }
+/// ```
+///
+
+#[serde_as]
+#[derive(Deserialize)]
+#[serde(untagged)]
+pub enum Text {
+    Simple {
+        #[serde(alias = "simpleText")]
+        text: String,
+    },
+    Multiple {
+        #[serde_as(as = "Vec<crate::serializer::text::Text>")]
+        runs: Vec<String>,
+    },
+}
+
+impl<'de> DeserializeAs<'de, String> for Text {
+    fn deserialize_as<D>(deserializer: D) -> Result<String, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let text = Text::deserialize(deserializer)?;
+        match text {
+            Text::Simple { text } => Ok(text),
+            Text::Multiple { runs } => Ok(runs.join("")),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use rstest::rstest;
+    use serde::Deserialize;
+    use serde_with::serde_as;
+
+    #[rstest]
+    #[case(
+        r#"{
+            "txt": {
+                "text": "Hello World"
+            }
+        }"#,
+        "Hello World"
+    )]
+    #[case(
+        r#"{
+            "txt": {
+                "simpleText": "Hello World"
+            }
+        }"#,
+        "Hello World"
+    )]
+    #[case(
+        r#"{
+            "txt": {
+                "runs": [
+                    {
+                        "text": "Abo für "
+                    },
+                    {
+                     "text": "MBCkpop"
+                    },
+                    {
+                        "text": " beenden?"
+                    }
+                ]
+            }
+        }"#,
+        "Abo für MBCkpop beenden?"
+    )]
+    fn t_deserialize(#[case] test_json: &str, #[case] exp: &str) {
+        #[serde_as]
+        #[derive(Deserialize)]
+        struct S {
+            #[serde_as(as = "crate::serializer::text::Text")]
+            txt: String,
+        }
+
+        let res = serde_json::from_str::<S>(&test_json).unwrap();
+        assert_eq!(res.txt, exp)
+    }
+}