Develop a Mac Application

I need a Mac software that will I will be able to enter my user name and pswd to Facebook and it will allow me to create a post (text) and it will posts to my selected list of groups. it will do it on a timely manner - meaning for example I have 48 groups that I want to post to - it will do post one time to 1 group every half an hour. if I have 96 groups to post to it will post 1 time to 1 fb group every 15 minutes I will be able to create several tasks like this (not related to each other) . I will be able to see that status of each task in the dashboard of the app (for example "current status posted to 15 out 52 groups till now" ) and will be able to pause/stop a task and will be able to post start a gain a task that have been completed already