1 files changed, 34 insertions, 0 deletions
diff --git a/internal/imap/mailboxes.go b/internal/imap/mailboxes.go
new file mode 100644
index 0000000..d0fdede
--- /dev/null
+++ b/internal/imap/mailboxes.go
@@ -0,0 +1,34 @@
+package imap
+
+import (
+	"sync"
+
+	"github.com/emersion/go-imap"
+)
+
+type mailboxes struct {
+	mb map[string]*imap.MailboxInfo
+	mu sync.RWMutex
+}
+
+func (mbs *mailboxes) contains(elem Folder) bool {
+	mbs.mu.RLock()
+	defer mbs.mu.RUnlock()
+
+	_, ok := mbs.mb[elem.str]
+	return ok
+}
+
+func (mbs *mailboxes) add(elem *imap.MailboxInfo) {
+	mbs.mu.Lock()
+	defer mbs.mu.Unlock()
+
+	mbs.mb[elem.Name] = elem
+}
+
+func NewMailboxes() *mailboxes {
+	return &mailboxes{
+		mb: map[string]*imap.MailboxInfo{},
+		mu: sync.RWMutex{},
+	}
+}
+\ No newline at end of file