package devices

import (
	"io/fs"
	"path/filepath"
)

var (
	testDevice       Device
	testRootDevPath  = "testdata/dev"
	testRootSysPath  = "testdata/sys"
	testDevicePath   = filepath.Join(testRootSysPath, "devices", "usb")
	mockSubsystemFn  = func(path string) (string, error) { return filepath.Dir(path), nil }
	mockDeviceTypeFn = func(_ string) (string, error) { return "char", nil }
)

func SetTestEnvs() {
	// set test paths
	DevPath = testRootDevPath
	SysPath = testRootSysPath
	sysDevicePath = filepath.Join(testRootSysPath, "devices")
	sysBusPath = filepath.Join(testRootSysPath, "bus")
	sysClassPath = filepath.Join(testRootSysPath, "class")

	subSystemSymlinkFn = mockSubsystemFn
	deviceTypeFn = mockDeviceTypeFn
	isSymlinkFn = func(fileInfo fs.FileInfo) bool {
		return fileInfo.Mode()&fs.ModeSymlink != 0
	}
}