From 32f196143e87fdc9f85ee3ca47436d218e12a4eb Mon Sep 17 00:00:00 2001
From: Manos Pitsidianakis <el13635@mail.ntua.gr>
Date: Fri, 17 Jul 2020 00:01:35 +0300
Subject: [PATCH] melib: add supports_search() method to MailBackend

---
 melib/src/backends.rs                 | 1 +
 melib/src/backends/imap.rs            | 5 +++++
 melib/src/backends/jmap.rs            | 4 ++++
 melib/src/backends/maildir/backend.rs | 4 ++++
 melib/src/backends/mbox.rs            | 4 ++++
 melib/src/backends/notmuch.rs         | 4 ++++
 src/plugins/backend.rs                | 5 +++++
 7 files changed, 27 insertions(+)

diff --git a/melib/src/backends.rs b/melib/src/backends.rs
index 609b9a8d..1d48ae2e 100644
--- a/melib/src/backends.rs
+++ b/melib/src/backends.rs
@@ -287,6 +287,7 @@ pub type ResultFuture<T> = Result<Pin<Box<dyn Future<Output = Result<T>> + Send
 pub trait MailBackend: ::std::fmt::Debug + Send + Sync {
     fn is_async(&self) -> bool;
     fn is_remote(&self) -> bool;
+    fn supports_search(&self) -> bool;
     fn is_online(&self) -> Result<()> {
         Err(MeliError::new("Unimplemented."))
     }
diff --git a/melib/src/backends/imap.rs b/melib/src/backends/imap.rs
index 29507a83..46f265bd 100644
--- a/melib/src/backends/imap.rs
+++ b/melib/src/backends/imap.rs
@@ -183,6 +183,11 @@ impl MailBackend for ImapType {
     fn is_remote(&self) -> bool {
         true
     }
+
+    fn supports_search(&self) -> bool {
+        true
+    }
+
     fn get_async(
         &mut self,
         mailbox: &Mailbox,
diff --git a/melib/src/backends/jmap.rs b/melib/src/backends/jmap.rs
index 737e974e..c506370e 100644
--- a/melib/src/backends/jmap.rs
+++ b/melib/src/backends/jmap.rs
@@ -198,6 +198,10 @@ impl MailBackend for JmapType {
         true
     }
 
+    fn supports_search(&self) -> bool {
+        true
+    }
+
     fn is_online(&self) -> Result<()> {
         if self.online.lock().unwrap().1.is_err()
             && Instant::now().duration_since(self.online.lock().unwrap().0)
diff --git a/melib/src/backends/maildir/backend.rs b/melib/src/backends/maildir/backend.rs
index ac2637c5..afd51908 100644
--- a/melib/src/backends/maildir/backend.rs
+++ b/melib/src/backends/maildir/backend.rs
@@ -183,6 +183,10 @@ impl MailBackend for MaildirType {
         false
     }
 
+    fn supports_search(&self) -> bool {
+        false
+    }
+
     fn is_online(&self) -> Result<()> {
         Ok(())
     }
diff --git a/melib/src/backends/mbox.rs b/melib/src/backends/mbox.rs
index fa508d0f..a8f9a298 100644
--- a/melib/src/backends/mbox.rs
+++ b/melib/src/backends/mbox.rs
@@ -710,6 +710,10 @@ impl MailBackend for MboxType {
         false
     }
 
+    fn supports_search(&self) -> bool {
+        false
+    }
+
     fn is_online(&self) -> Result<()> {
         Ok(())
     }
diff --git a/melib/src/backends/notmuch.rs b/melib/src/backends/notmuch.rs
index 9e3afdbc..f648664c 100644
--- a/melib/src/backends/notmuch.rs
+++ b/melib/src/backends/notmuch.rs
@@ -326,6 +326,10 @@ impl MailBackend for NotmuchDb {
         false
     }
 
+    fn supports_search(&self) -> bool {
+        true
+    }
+
     fn is_online(&self) -> Result<()> {
         Ok(())
     }
diff --git a/src/plugins/backend.rs b/src/plugins/backend.rs
index b87cbbd1..c5a7b602 100644
--- a/src/plugins/backend.rs
+++ b/src/plugins/backend.rs
@@ -75,6 +75,11 @@ impl MailBackend for PluginBackend {
         false
     }
 
+    fn supports_search(&self) -> bool {
+        // TODO
+        false
+    }
+
     fn is_online(&self) -> Result<()> {
         if let Ok(mut is_online) = self.is_online.try_lock() {
             let now = std::time::Instant::now();