package backend

import "context"

// Vault is the phase-3 HashiCorp Vault backend (KV v2 + AppRole via the
// official Go api package, MPL-2.0, vendored). v0 ships the interface
// slot ONLY: it resolves nothing and returns an explicit
// not-implemented error naming the ref and backend, so the connector is
// a drop-in behind the same interface later and misconfigured rollouts
// fail loudly today.
type Vault struct{}

// NewVault returns the vault stub.
func NewVault() *Vault { return &Vault{} }

// Name implements Backend.
func (v *Vault) Name() string { return "vault" }

// Resolve implements Backend.
func (v *Vault) Resolve(ctx context.Context, ref Ref) (string, error) {
	return "", Err(ref, v.Name(), ReasonNotImplemented)
}