1 files changed, 49 insertions, 0 deletions
diff --git a/src/imap/command/anystate.rs b/src/imap/command/anystate.rs
new file mode 100644
index 0000000..2d10ad8
--- /dev/null
+++ b/src/imap/command/anystate.rs
@@ -0,0 +1,49 @@
+use anyhow::Result;
+use imap_codec::imap_types::core::{NonEmptyVec, Tag};
+use imap_codec::imap_types::response::{Capability, Data};
+
+use crate::imap::flow;
+use crate::imap::response::Response;
+
+pub(crate) fn capability(tag: Tag) -> Result<(Response, flow::Transition)> {
+    let capabilities: NonEmptyVec<Capability> =
+        (vec![Capability::Imap4Rev1, Capability::Idle]).try_into()?;
+    let res = Response::ok()
+        .tag(tag)
+        .message("Server capabilities")
+        .data(Data::Capability(capabilities))
+        .build()?;
+
+    Ok((res, flow::Transition::None))
+}
+
+pub(crate) fn noop_nothing(tag: Tag) -> Result<(Response, flow::Transition)> {
+    Ok((
+        Response::ok().tag(tag).message("Noop completed.").build()?,
+        flow::Transition::None,
+    ))
+}
+
+pub(crate) fn logout() -> Result<(Response, flow::Transition)> {
+    Ok((Response::bye()?, flow::Transition::Logout))
+}
+
+pub(crate) fn not_implemented(tag: Tag, what: &str) -> Result<(Response, flow::Transition)> {
+    Ok((
+        Response::bad()
+            .tag(tag)
+            .message(format!("Command not implemented {}", what))
+            .build()?,
+        flow::Transition::None,
+    ))
+}
+
+pub(crate) fn wrong_state(tag: Tag) -> Result<(Response, flow::Transition)> {
+    Ok((
+        Response::bad()
+            .tag(tag)
+            .message("Command not authorized in this state")
+            .build()?,
+        flow::Transition::None,
+    ))
+}