# SVEN

SVEN is a supermarket management system.

## Requirements
- PHP Version 5.5 or higher
    - because of password_* functions
## File Structure
- pages/            -   Pages
- public/           -   CSS & Javascript Files
- sys/              -   Core and Framework Files
    - mysql/        -   MySQL Connection Wrapper
    - security/     -   Authentication & miscellaneous
    - sources/      -   Used Libraries
    - sven/         -   Some important classes
- templates/        -   prebuilt elements

## API Request Methods
- GET - Read from database
- POST - Insert to database
- PATCH - Update in database
- DELETE - Delete from database

## API Output Scheme
```json
{
		"state": "failed", // program state
		"access": "granted|denied", // authentication
		"msg": "{{custom_data_msg}}",
		"data": "{{data}}",
		"error": ["{{error}}", ...] // optional
}
```

## API Parameters
- article
	- GET
		- limit - limit output
		- search_for - search for value
		- in - column name to search in

## API Errors
- REQUEST_METHOD_NOT_SUPPORTED -> Request method not supported
- AUTHENTICATION_FAILED -> User not logged in. / Username or password wrong.
- BAD_REQUEST -> request or information are missing
- NO_OUTPUT -> No data was passed. Request unfortunately failed.

## Credits
- Ruben Meyer
- Bennet Kahrs
- [envms (fluentpdo)][fluentpdo]
- [Luís Cobucci (jwt library)][lcobucci]

## Not working things
- can't install laravel / composer to use an popular framework, so we had to write our own framework


[fluentpdo]: <http://envms.github.io/fluentpdo/>
[lcobucci]: <https://github.com/lcobucci/jwt>