Moodle - Plugin Stats

Hello. I need a plugin for the Moodle LMS, this plugin had to do: - Stat on a specific User or on a list of Users on a course - Display the name of the user we want stat on it. - Display the total time of connection per User and per course. - Display the total time of connection per User and per Day and per course - Display graduation % per user and per course. - Export to PDF (optionnaly csv for long list of users) - Can select which information to export - Permit modification of time (ajax integration) or %