package imapclient

import (
	"context"
	"testing"

	"email-mcp/internal/secretstore"
)

type backendStub struct{}

func (backendStub) ListMailboxes(context.Context, secretstore.Credential) ([]Mailbox, error) {
	return []Mailbox{{Name: "INBOX"}}, nil
}

func (backendStub) ListMessages(context.Context, secretstore.Credential, string, int) ([]MessageSummary, error) {
	return nil, nil
}

func (backendStub) GetMessage(context.Context, secretstore.Credential, string, string) (Message, error) {
	return Message{}, nil
}

func TestServiceListMailboxesUsesBackend(t *testing.T) {
	svc := NewService(backendStub{})

	boxes, err := svc.ListMailboxes(context.Background(), secretstore.Credential{
		Host:     "imap.example.com",
		Username: "alice",
		Password: "secret",
	})
	if err != nil {
		t.Fatalf("ListMailboxes returned error: %v", err)
	}
	if len(boxes) != 1 || boxes[0].Name != "INBOX" {
		t.Fatalf("unexpected mailboxes: %#v", boxes)
	}
}