using System;

using System.Text.RegularExpressions;

using RestSharp;

namespace PostcodeAPI

{

public abstract class PostcodeApiClientBase

{

protected IRestClient Client;

public string EndpointUrl { get; set; }

public string HeaderKey { get; set; }

public string APIKey { get; set; }

protected PostcodeApiClientBase(string apiKey, string endpointUrl, string headerKey)

{

APIKey = apiKey;

EndpointUrl = endpointUrl;

HeaderKey = headerKey;

}

protected void InitialiseClient(IRestClient client)

{

Client = client;

Client.BaseUrl = new Uri(EndpointUrl);

Client.AddDefaultHeader(HeaderKey, APIKey);

}

protected void InitialiseClient()

{

InitialiseClient(new RestClient(EndpointUrl));

}

//public abstract ApiResultWrapper GetAddress(string postcode);

//public abstract ApiResultWrapper GetAddress(string postcode, int number);

/// <summary>

/// Returns the P4, P5 or P6 format detected by the input.

/// </summary>

public string FindPostcodeType(string postcode)

{

if (Regex.IsMatch(postcode, @"^[0-9]{4}[a-zA-Z]{2}$")) return Constants.PostcodeFormatTypes.P6;

if (Regex.IsMatch(postcode, @"^[0-9]{4}[a-zA-Z]{1}$")) return Constants.PostcodeFormatTypes.P5;

if (Regex.IsMatch(postcode, @"^[0-9]{4}$")) return Constants.PostcodeFormatTypes.P4;

return string.Empty;

}

}

}