details improvement and unnecessary files deletion

internal/repository/certificate.go

@@ -0,0 +1,24 @@
+package repository
+
+import (
+	"context"
+
+	"github.com/usual2970/certimate/internal/domain"
+	"github.com/usual2970/certimate/internal/utils/app"
+)
+
+type CertificateRepository struct{}
+
+func NewCertificateRepository() *CertificateRepository {
+	return &CertificateRepository{}
+}
+
+func (c *CertificateRepository) GetExpireSoon(ctx context.Context) ([]domain.Certificate, error) {
+	rs := []domain.Certificate{}
+	if err := app.GetApp().Dao().DB().
+		NewQuery("select * from certificate where expireAt > datetime('now') and expireAt < datetime('now', '+20 days')").
+		All(&rs); err != nil {
+		return nil, err
+	}
+	return rs, nil
+}