IntegerToRomanNumeralsFunctionApp.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.Functions.Worker;
using Microsoft.Extensions.Logging;

namespace DotnetGuildTraining;

public class IntegerToRomanNumeralsFunctionApp
{
    private readonly ILogger<IntegerToRomanNumeralsFunctionApp> _logger;
    private readonly int[] intVals = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1];
    private readonly string[] symbols = ["M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"];

    public IntegerToRomanNumeralsFunctionApp(ILogger<IntegerToRomanNumeralsFunctionApp> logger)
    {
        _logger = logger;
    }

    /// <summary>
    /// Implement this function to return the roman numeral representation of a provided number.
    /// Assume the number to be between 0 and 4000, if it is outside this region, return a bad request (400) response.
    /// This is quite a tricky exercise. You can find a tip here: https://www.mathsisfun.com/roman-numerals.html
    /// </summary>
    /// <param name="req">The HTTP request for the Function App call</param>
    /// <param name="number">The integer to be converted to roman numerals</param>
    /// <returns></returns>
    [Function("IntegerToRomanNumeralsFunctionApp")]
    public IActionResult Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "integer-to-roman/{number:int}")] HttpRequest req, int number)
    {
       try
       {
            _logger.LogInformation($"Started {nameof(IntegerToRomanNumeralsFunctionApp)}");
            return new OkObjectResult("OK");
       }
       catch (Exception e)
        {
            _logger.LogError($"Error at {nameof(IntegerToRomanNumeralsFunctionApp)}: {e}");
            return new StatusCodeResult(StatusCodes.Status500InternalServerError);
        }
    }
}