Sistema detector de fugas de gas, agua y luz eléctrica

I need a system capable of detecting the leakage of gas, water and electricity that sends me real-time monitoring in an app created for smartphone. The project must have the following characteristics: 1) When detecting a gas leak, an alarm must sound and cut off the gas supply through a 110VAC solenoid valve and notify the user through the app that there is a gas leak. 2) The water leak detector must monitor the flow rate and by means of a flow sensor, there must also be a warning in the app to be created. 3) When detecting greater power consumption by measuring wattage with a sensor, the user must be alerted in the app. 4) This whole system must be through Arduino. 5) communication must be over wifi 6) I need the list of materials and connection diagram to carry it out in physical. 7) And finally I need the application that is capable of carrying the monitoring and leak alerts to the user in real time connected by Wi-Fi to the arduino (s) to occupy.