FranQ

Hi I'm new to the forum and have a question. My holiday home in France was recently burgled. I'd like to set up a camera at the gate which is up a long private drive. Ideally I'd like the camera to come on whenever anyone approaches the gate, alert me that the camera is on and allow me to view the camera images from my house in England, either on my computer or phone. Can anyone suggest the most efficient and economical way to do this? Or any links to sites which may explain it or sell me the required equipment. Thanks in advance for any help Franq