fix review dismissal and thread comment updating

Author: 2bndy5

cpp-linter/src/rest_api/github/serde_structs.rs

@@ -36,6 +36,22 @@ impl From<Suggestion> for ReviewDiffComment {
     }
 }
 
+/// A struct to serialize PR review dismissal payloads.
+#[derive(Debug, Serialize)]
+pub struct ReviewDismissal {
+    event: String,
+    message: String,
+}
+
+impl Default for ReviewDismissal {
+    fn default() -> Self {
+        Self {
+            event: "DISMISS".to_string(),
+            message: "outdated review".to_string(),
+        }
+    }
+}
+
 /// A structure for deserializing a single changed file in a CI event.
 #[derive(Debug, Deserialize, PartialEq, Clone)]
 pub struct GithubChangedFile {

cpp-linter/src/rest_api/github/specific_api.rs

@@ -19,7 +19,10 @@ use crate::{
 };
 
 use super::{
-    serde_structs::{FullReview, PullRequestInfo, ReviewComment, ReviewDiffComment, ThreadComment},
+    serde_structs::{
+        FullReview, PullRequestInfo, ReviewComment, ReviewDiffComment, ReviewDismissal,
+        ThreadComment,
+    },
     GithubApiClient, RestApiClient,
 };
 
@@ -206,9 +209,14 @@ impl GithubApiClient {
             })?,
         );
         let repo = format!(
-            "repos/{}/comments",
+            "repos/{}{}/comments",
             // if we got here, then we know it is on a CI runner as self.repo should be known
-            self.repo.as_ref().expect("Repo name unknown.")
+            self.repo.as_ref().expect("Repo name unknown."),
+            if self.event_name == "pull_request" {
+                "/issues"
+            } else {
+                ""
+            },
         );
         let base_comment_url = self.api_url.join(&repo).unwrap();
         while let Some(ref endpoint) = comments_url {
@@ -460,15 +468,9 @@ impl GithubApiClient {
                                             &self.client,
                                             dismiss_url,
                                             Method::PUT,
-                                            Some(
-                                                serde_json::json!(
-                                                    {
-                                                        "message": "outdated suggestion",
-                                                        "event": "DISMISS"
-                                                    }
-                                                )
-                                                .to_string(),
-                                            ),
+                                            Some(serde_json::to_string(
+                                                &ReviewDismissal::default(),
+                                            )?),
                                             None,
                                         ) {
                                             match Self::send_api_request(