Trip Cost Calculator - Library

The Trip Cost Calculator provides easy functionality for evaluating the total cost for a pre-defined route that your vehicle will travel. The parameters supported and considered in cost calculation are:

• route distance in km
• route travelling time
• driver salary hourly rate
• vehicle wear and tear costs

The library is using PHP-DI

Basic Usage

<?php

use DI\ContainerBuilder;
use Trip\Calculator\TripCalculator;
use Trip\Calculator;

$apiKey = "";

$diBuilder = new ContainerBuilder();
$diBuilder->addDefinitions(
    [
        'Trip\Calculator\Interfaces\GeoService' => function (ContainerInterface $c) {
            return $geoService = new OpenRoute($apiKey);
        }
    ]
);

$diContainer = $diBuilder->build();

$tripCalculator = $diContainer->get("Trip\Calculator\TripCalculator");

In the above code segment, we're using PHP-DI to autowire the dependencies. We're also configuring which Geo Service API to use. Above, we're setting the OpenRoute Service. Adding other alternatives is planned future work for the library.

Usage Instructions

To properly calculate the trip costs, you need to assign the different values.

Vehicle configurations

$vehicle = $tripCalculator->getVehicle();
$vehicle->name = "Vehicle 1";
$vehicle->fuelLitrePerHundred = "9";
$vehicle->wearTearHourly = "5";

Driver configurations

$driver = $tripCalculator->getDriver();
$driver->name = "Chris";
$driver->hourlyRate = "10.50";

Trip Configurations

$trip = $tripCalculator->getTrip();
$trip->name = "Test trip";

## set the points (coordinates) that need to be included in the trip calculation
$trip->addPoint(new Point(14.4819237, 35.920715));
$trip->addPoint(new Point(14.4526501, 35.9366694));

Calculations

After setting the configurations required for the objects as defined above, you need to then call the calculation process, which will use third party APIs.

$totalCost = $tripCalculator->calculateCost();

The above will give you the total cost in Euro, but more details are populated in the trip object.

$travelledKilometers = $trip->travelledKilometers;
$travelTimeMinutes = $trip->travelTimeMinutes;
$geometryDirections = $tripCalculator->getGeoService()->getDirections();

Third Party Packages

All third party libraries are listed in the composer.json, and have been left as is without modification.

Requirements

• php 7.4 or above
• ext-decimal / php-decimal
• composer

Author

Chris Bartolo - chris@chrisbartolo.com

License

The Trip Cost Calculator is licenses under the MIT license