Core Functionality

ToDo Management

Create a one-time task that should occur at a specified mileage.
Receive an in-app notification when the car's mileage nears or exceeds the mileage set for the one-time task
ToDo items can be marked as completed.
Past ToDo items will be preserved unless deleted.

The user can create task types that are to occur at a given mileage or time interval.
A ToDo item will be automatically created for the next upcoming instance of this repeating task.
The interval for the repeating task can be reconfigured any time after its creation and the corresponding upcoming ToDo list item will update its mileage/date accordingly.
A default set of repeating tasks will be provided upon user account creation.
Repeating tasks can be added and removed, including the set of tasks provided by default.

The User may configure any number of cars with their account
- TODO: limit this at some point
The current measured mileage will be stored for each car configured by the User.
An estimate of the current mileage will be stored for each car configured by the User.

The estimate of the current mileage will be set to the measured mileage every time that the measured mileage is updated.
An estimated derivative of miles driven per day will be determined from the date of each measured mileage update and the mileage difference in the update.
The derivative will be recomputed and optimized using historical data and the most recent measured mileage update.
The derivative will be used to set an estimated notification time for ToDo items that coming up soon.