Use Basecamp API calls to import all project data into our mysql database

We have an internal project management app built in php/mysql. We want a php script that will ask for a user's Basecamp credentials and then pull their data (using their API) into our Mysql db. We will give you our db schema and relationships. Everything that Basecamp lets you export should be imported to our db. Nothing just be left out. This includes: Active Projects Inactive Projects Companies Users and their respective companies All messages All Tasks All Milestones All Files All Whiteboards Anything else.... ## Deliverables If the user has downloaded an xml file from Basecamp, a script can be also written to parse the xml file and import the contents to our database. This solution could be instead of the API solution. Please mention which solution you are opting for.