Competition ; booking step in one page check out in magento 1.9 with google calendar ...............................

the project includes; -booking with google calendar usage - set the calendar that only works in precise time slots and on specific days -the time in minutes - It has to be multi store, so different calendars google accounts - Appointments should not overstate -Take time to appointments based on the amount of products in a specific category -input one or more time variables, for example: - 1 product = 10 minutes - 2 products = 10 minutes + 50% = 15 minutes - 3 products = 10 minutes + 75% = 17 minutes and 30 seconds -in total of products enter a fixed time, example: - 3 products (17m and 30s) + x time (7 minutes) = 24m and 30s -The summary of the purchase must be indicated in the appointment