Add existing codebase

pkg/brainbuffer/appointment/repository.go

@@ -0,0 +1,19 @@
+package appointment
+
+import (
+	"brainbuffer/pkg/brainbuffer/repository"
+	"time"
+)
+
+type Repository interface {
+	Save(appointment *Appointment) error
+	FindByID(id int64) (*Appointment, error)
+	GetAllByTask(taskId int64, page repository.Page) (Appointments, error)
+	GetAllByTasks(taskIds []int64, page repository.Page) (Appointments, error)
+	GetAllByTasksBefore(taskIds []int64, beforeTime time.Time, page repository.Page) (Appointments, error)
+	DeleteAllByTask(taskId int64) error
+}
+
+func NewRepository() Repository {
+	return &inMemoryRepository{}
+}