package presence

import (
	"context"

	"git.asio.asia/nixevol/NixMsg/internal/app/port"
	"git.asio.asia/nixevol/NixMsg/internal/protocol"
)

// Stub 是测试用假实现：全部视为离线。
type Stub struct{}

func NewStub() *Stub { return &Stub{} }

func (s *Stub) Get(_ context.Context, ids []string) ([]StatusItem, error) {
	out := make([]StatusItem, 0, len(ids))
	for _, id := range ids {
		out = append(out, StatusItem{ID: id, Online: false, SinceMs: 0})
	}
	return out, nil
}

func (s *Stub) Directory(context.Context, *protocol.DirectoryList) ([]DirectoryItem, string, error) {
	return nil, "", nil
}

func (s *Stub) Watch(context.Context, port.ConnID, string, *protocol.PresenceWatch) error {
	return nil
}

func (s *Stub) ClearWatch(port.ConnID) {}

func (s *Stub) SetOnline(context.Context, string, port.ConnID, int64) error { return nil }

func (s *Stub) SetOffline(context.Context, string, port.ConnID, int64) error { return nil }

func (s *Stub) IsOnline(string) bool { return false }

func (s *Stub) CurrentConn(string) (port.ConnID, bool) { return "", false }

var _ Service = (*Stub)(nil)