using System;
using System.Collections.Generic;
using RestSharp;

public class Magento
{
    private readonly string _host;
    private readonly string _username;
    private readonly string _password;

    public Magento(string host, string username, string password)
    {
        _host = host;
        _username = username;
        _password = password;
    }

    /// <summary>
    /// Gets the bearer token by user name and password
    /// </summary>
    /// <returns>Magento bearer token</returns>
    public string GetBearerToken()
    {
        var client = new RestClient { BaseUrl = new Uri(_host) };
        var request = new RestRequest(Method.POST);
        request.AddHeader("Content-Type", "application/json");
        request.Resource = "rest/V1/integration/admin/token";
        request.AddJsonBody(new { username = _username, password = _password });
        var response = client.Execute(request);
        return response.Content;
    }

    /// <summary>
    /// Gets all customers
    /// </summary>
    /// <returns>Magento response containing customers info</returns>
    public MagentoResponse GetAllCustomers()
    {
        var token = GetBearerToken().Trim('"');
        var client = new RestClient { BaseUrl = new Uri(_host) };
        var request = new RestRequest(Method.GET);
        request.AddHeader("Content-Type", "application/json");
        request.AddHeader("Authorization", "Bearer " + token);
        request.Resource = "rest/V1/customers/search?searchCriteria";
        var response = client.Execute<MagentoResponse>(request);
        return response.Data;
    }

    /// <summary>
    /// Class representing Magento response after customers request
    /// </summary>
    public class MagentoResponse
    {
        public List<Customer> Items { get; set; }
        public Search_Criteria search_criteria { get; set; }
        public int total_count { get; set; }
    }

    public class Search_Criteria
    {
        public List<string> filter_groups { get; set; }
        public int page_size { get; set; }
    }

    public class Customer
    {
        public int id { get; set; }
        public int group_id { get; set; }
        public string default_billing { get; set; }
        public string default_shipping { get; set; }
        public string created_at { get; set; }
        public string updated_at { get; set; }
        public string created_in { get; set; }
        public string email { get; set; }
        public string firstname { get; set; }
        public string lastname { get; set; }
        public int store_id { get; set; }
        public int website_id { get; set; }
        public List<string> addresses { get; set; }
        public int disable_auto_group_change { get; set; }
    }
}