From a5a0a40cf002ea15f7758e5d0e664585a669e83c Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sun, 1 Aug 2021 17:11:35 +0200
Subject: Add type aliases for less cognitive complexity

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
---
 src/model/backend/channels.rs |  9 +++++++++
 src/model/backend/fassade.rs  |  8 +++++---
 src/model/backend/messages.rs |  4 +++-
 src/model/backend/mod.rs      |  1 +
 src/model/backend/worker.rs   | 12 +++++++-----
 5 files changed, 25 insertions(+), 9 deletions(-)
 create mode 100644 src/model/backend/channels.rs

diff --git a/src/model/backend/channels.rs b/src/model/backend/channels.rs
new file mode 100644
index 0000000..ce8c19f
--- /dev/null
+++ b/src/model/backend/channels.rs
@@ -0,0 +1,9 @@
+use crate::model::backend::messages::BackendRequest;
+use crate::model::backend::messages::BackendResponse;
+
+pub type BackendRequestSender = crossbeam::channel::Sender<(BackendRequest, BackendResponseSender)>;
+pub type BackendRequestdReceiver = crossbeam::channel::Receiver<(BackendRequest, BackendResponseSender)>;
+
+pub type BackendResponseSender = crossbeam::channel::Sender<BackendResponse>;
+pub type BackendResponseReceiver = crossbeam::channel::Receiver<BackendResponse>;
+
diff --git a/src/model/backend/fassade.rs b/src/model/backend/fassade.rs
index 23b3bf9..83cfe35 100644
--- a/src/model/backend/fassade.rs
+++ b/src/model/backend/fassade.rs
@@ -3,17 +3,19 @@ use anyhow::Error;
 
 use crate::model::backend::messages::BackendRequest;
 use crate::model::backend::messages::BackendResponse;
+use crate::model::backend::channels::BackendRequestSender;
+use crate::model::backend::channels::BackendResponseReceiver;
 
 pub struct BackendFassade {
-    inner: crossbeam::channel::Sender<(BackendRequest, crossbeam::channel::Sender<BackendResponse>)>,
+    inner: BackendRequestSender,
 }
 
 impl BackendFassade {
-    pub fn new(inner: crossbeam::channel::Sender<(BackendRequest, crossbeam::channel::Sender<BackendResponse>)>) -> Self {
+    pub fn new(inner: BackendRequestSender) -> Self {
         BackendFassade { inner }
     }
 
-    async fn send_request(&self, req: BackendRequest) -> Result<crossbeam::channel::Receiver<BackendResponse>> {
+    async fn send_request(&self, req: BackendRequest) -> Result<BackendResponseReceiver> {
         let (sender, receiver) = crossbeam::channel::bounded(1);
         self.inner
             .send(req.with_sender(sender))
diff --git a/src/model/backend/messages.rs b/src/model/backend/messages.rs
index 3e185f4..e809999 100644
--- a/src/model/backend/messages.rs
+++ b/src/model/backend/messages.rs
@@ -1,10 +1,12 @@
+use crate::model::backend::channels::BackendResponseSender;
+
 pub enum BackendRequest {
     BranchList,
     TagList,
 }
 
 impl BackendRequest {
-    pub fn with_sender(self, sender: crossbeam::channel::Sender<BackendResponse>) -> (Self, crossbeam::channel::Sender<BackendResponse>) {
+    pub fn with_sender(self, sender: BackendResponseSender) -> (Self, BackendResponseSender) {
         (self, sender)
     }
 }
diff --git a/src/model/backend/mod.rs b/src/model/backend/mod.rs
index 77f8e56..b97e9f0 100644
--- a/src/model/backend/mod.rs
+++ b/src/model/backend/mod.rs
@@ -2,3 +2,4 @@ pub mod error;
 pub mod fassade;
 pub mod messages;
 pub mod worker;
+mod channels;
diff --git a/src/model/backend/worker.rs b/src/model/backend/worker.rs
index ad8d0de..be347ac 100644
--- a/src/model/backend/worker.rs
+++ b/src/model/backend/worker.rs
@@ -9,19 +9,21 @@ use cached::proc_macro::cached;
 use crate::model::backend::error::BackendError;
 use crate::model::backend::messages::BackendRequest;
 use crate::model::backend::messages::BackendResponse;
+use crate::model::backend::channels::BackendRequestdReceiver;
+use crate::model::backend::channels::BackendResponseSender;
 
 pub struct BackendWorker {
     repo_name: String,
     repo: Mutex<git2::Repository>,
-    receiver: crossbeam::channel::Receiver<(BackendRequest, crossbeam::channel::Sender<BackendResponse>)>,
+    receiver: BackendRequestdReceiver,
 }
 
 impl BackendWorker {
     pub fn new(
         repo_name: String,
         repo: Mutex<git2::Repository>,
-        receiver: crossbeam::channel::Receiver<(BackendRequest, crossbeam::channel::Sender<BackendResponse>)>)
-    -> Self {
+        receiver: BackendRequestdReceiver,
+    ) -> Self {
         BackendWorker { repo_name, repo, receiver }
     }
 
@@ -40,7 +42,7 @@ impl BackendWorker {
         }
     }
 
-    fn send_branch_list(&self, sender: crossbeam::channel::Sender<BackendResponse>) -> std::result::Result<(), BackendError> {
+    fn send_branch_list(&self, sender: BackendResponseSender) -> std::result::Result<(), BackendError> {
         let repo_lock = self.repo
             .lock()
             .map_err(|_| BackendError::LockError)?;
@@ -52,7 +54,7 @@ impl BackendWorker {
             .map_err(|_| BackendError::ChannelError)
     }
 
-    fn send_tag_list(&self, sender: crossbeam::channel::Sender<BackendResponse>) -> std::result::Result<(), BackendError> {
+    fn send_tag_list(&self, sender: BackendResponseSender) -> std::result::Result<(), BackendError> {
         let repo_lock = self.repo
             .lock()
             .map_err(|_| BackendError::LockError)?;
-- 
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