From 904c7e40a2d092eea87ca6d9ea80edce8a2aad2a Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Wed, 17 Mar 2021 14:14:46 +0100
Subject: feat: add delete commit endpoint

---
 src/commit/models.rs | 32 ++++++++++++++++++++++++++++++++
 src/commit/routes.rs | 46 ++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 74 insertions(+), 4 deletions(-)

diff --git a/src/commit/models.rs b/src/commit/models.rs
index c70ecf2..8b81a15 100644
--- a/src/commit/models.rs
+++ b/src/commit/models.rs
@@ -61,4 +61,36 @@ impl Commit {
             }),
         }
     }
+
+    /// Find a commit and delete it, but before check if "Authorization"
+    /// matches with SECRET_KEY
+    pub async fn delete(
+        pool: Pool,
+        hash: &String,
+    ) -> Result<Commit, AppError> {
+        let client = get_client(pool.clone()).await.unwrap();
+        let statement = client
+            .prepare(
+                "
+                DELETE FROM commit
+                WHERE hash=$1
+                RETURNING *
+                ",
+            )
+            .await?;
+
+        let commit = client
+            .query_opt(&statement, &[&hash])
+            .await?
+            .map(|row| Commit::from_row_ref(&row).unwrap());
+
+        match commit {
+            Some(commit) => Ok(commit),
+            None => Err(AppError {
+                error_type: AppErrorType::NotFoundError,
+                cause: None,
+                message: Some("Commit not found".to_string()),
+            }),
+        }
+    }
 }
diff --git a/src/commit/routes.rs b/src/commit/routes.rs
index 1b73c4f..e49f698 100644
--- a/src/commit/routes.rs
+++ b/src/commit/routes.rs
@@ -1,9 +1,10 @@
 use crate::commit::models::Commit;
 use crate::config::AppState;
-use crate::errors::AppErrorResponse;
-
-use actix_web::{web, HttpResponse, Responder};
+use crate::errors::{AppError, AppErrorResponse, AppErrorType};
+use actix_web::http::header;
+use actix_web::{web, HttpRequest, HttpResponse, Responder};
 use slog::info;
+use std::env;
 
 /// Endpoint used for getting all commits
 async fn index(state: web::Data<AppState>) -> impl Responder {
@@ -33,6 +34,42 @@ async fn get_commit(
         .map_err(|e| e)
 }
 
+/// Endpoint used for delete commitsitory.
+/// It uses a SECRET_KEY used like an API key
+async fn delete_commit(
+    req: HttpRequest,
+    state: web::Data<AppState>,
+    hash: web::Path<(String,)>,
+) -> impl Responder {
+    match req.headers().get(header::AUTHORIZATION) {
+        Some(x)
+            if x.to_str().unwrap()
+                != env::var("SECRET_KEY").unwrap_or("".to_string()) =>
+        {
+            info!(state.log, "DELETE /commit/{}/ 401", &hash.0);
+            return Err(AppError {
+                error_type: AppErrorType::AuthorizationError,
+                message: Some(
+                    "You must provide a valid Authorization".to_string(),
+                ),
+                cause: None,
+            });
+        }
+        Some(_) => {}
+        None => {
+            info!(state.log, "DELETE /commit/{}/ 400", &hash.0);
+            return Ok(HttpResponse::BadRequest().body(""));
+        }
+    };
+
+    let result = Commit::delete(state.pool.clone(), &hash.0).await;
+    info!(state.log, "DELETE /commit/{}/", &hash.0);
+
+    result
+        .map(|_| HttpResponse::NoContent().body(""))
+        .map_err(|e| e)
+}
+
 /// Routes for commits
 pub fn config(cfg: &mut web::ServiceConfig) {
     cfg.service(
@@ -40,7 +77,8 @@ pub fn config(cfg: &mut web::ServiceConfig) {
             .service(web::resource("{_:/?}").route(web::get().to(index)))
             .service(
                 web::resource("/{hash}{_:/?}")
-                    .route(web::get().to(get_commit)),
+                    .route(web::get().to(get_commit))
+                    .route(web::delete().to(delete_commit)),
             ),
     );
 }
-- 
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