feat: add search suggestions

src/client/search.rs

@@ -1,4 +1,4 @@
-use serde::Serialize;
+use serde::{de::IgnoredAny, Serialize};
 
 use crate::{
     deobfuscate::Deobfuscator,
@@ -79,6 +79,32 @@ impl RustyPipeQuery {
         )
         .await
     }
+
+    pub async fn search_suggestion(self, query: &str) -> Result<Vec<String>, Error> {
+        let url = url::Url::parse_with_params("https://suggestqueries-clients6.youtube.com/complete/search?client=youtube&gs_rn=64&gs_ri=youtube&ds=yt&cp=1&gs_id=4&xhr=t&xssi=t",
+            &[("hl", self.opts.lang.to_string()), ("gl", self.opts.country.to_string()), ("q", query.to_string())]
+        ).map_err(|_| Error::Other("could not build url".into()))?;
+
+        let response = self
+            .client
+            .http_request_txt(self.client.inner.http.get(url).build()?)
+            .await?;
+
+        let trimmed = response.get(5..).ok_or_else(|| {
+            Error::Extraction(ExtractionError::InvalidData(
+                "could not get string slice".into(),
+            ))
+        })?;
+
+        let parsed = serde_json::from_str::<(
+            IgnoredAny,
+            Vec<(String, IgnoredAny, IgnoredAny)>,
+            IgnoredAny,
+        )>(trimmed)
+        .map_err(|e| Error::Extraction(ExtractionError::InvalidData(e.to_string().into())))?;
+
+        Ok(parsed.1.into_iter().map(|item| item.0).collect())
+    }
 }
 
 impl MapResponse<SearchResult> for response::Search {