package notify

import "context"

// NoopSender is a deterministic no-op notifier.
type NoopSender struct{}

// Send returns a placeholder successful result.
func (n *NoopSender) Send(ctx context.Context, _ SendRequest) (SendResult, error) {
	if err := ctx.Err(); err != nil {
		return SendResult{}, err
	}
	return SendResult{ProviderMessageID: "noop", Metadata: map[string]any{"placeholder": true}}, nil
}

// FakeSender captures send requests and returns deterministic responses.
type FakeSender struct {
	Requests []SendRequest
	Err      error
	Result   SendResult
}

// Send records request and returns configured response.
func (f *FakeSender) Send(ctx context.Context, req SendRequest) (SendResult, error) {
	if err := ctx.Err(); err != nil {
		return SendResult{}, err
	}
	f.Requests = append(f.Requests, req)
	if f.Err != nil {
		return SendResult{}, f.Err
	}
	res := f.Result
	if res.ProviderMessageID == "" {
		res.ProviderMessageID = "fake"
	}
	if res.Metadata == nil {
		res.Metadata = map[string]any{"fake": true}
	}
	return res, nil
}