using System.Collections.Specialized;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
using System.Xml;

namespace CPE.App.Web.Connect {

	public class Login {

		/// <summary>
		/// Logs into the Connect service with the information provided and returns the Session object containing the session key.
		/// </summary>
		/// <param name="username">The username/login of the account.</param>
		/// <param name="password">The password for the account.</param>
		/// <param name="connectURL">The URL to the connect service.</param>
		/// <param name="accountId">The primary key of the Connect account/host.</param>
		public static Session UserLogin(string username, string password, string connectURL, int? accountId) {

			// Attempt login
			var request = new Request(connectURL, "login");
			request.Parameters.Add("login", username);
			request.Parameters.Add("password", password);
            if(accountId.HasValue)
			    request.Parameters.Add("account-id", accountId.Value.ToString());

			// Check if valid
			if(request.Execute() && request.Status == Status.OK && !string.IsNullOrEmpty(request.ExtractSessionKey())) {

				return new Session() { 
					Hostname = connectURL, 
					SessionKey = request.ExtractSessionKey()
				};
			}

			return null;
		}

		/// <summary>
		/// Resets the password for the specified account.
		/// </summary>
		/// <param name="admin">The administrative session.</param>
		/// <param name="userid">The principal-id of the user's account.</param>
		/// <param name="password">The new password.</param>
		public static bool ResetPassword(Session admin, int userid, string password) {

			var request = new Request(admin, "user-update-pwd");
			request.Parameters.Add("user-id", userid.ToString());
			request.Parameters.Add("password", password);
			request.Parameters.Add("password-verify", password);

			return (request.Execute() && request.Status == Status.OK);
		}

		/// <summary>
		/// Creates a new guest user with the specified information.
		/// </summary>
		/// <param name="admin">The administrative session.</param>
		/// <param name="username">The login/username of the user.</param>
		/// <param name="password">The password for the user.</param>
		/// <param name="email">The e-mail for the user.</param>
		/// <param name="name">The user's full name.</param>
		/// <returns>Returns the new principal-id of the user.</returns>
		public static int CreateGuest(Session admin, string username, string password, string email, string firstName, string lastName) {

			var request = new Request(admin, "principal-update");
			request.Parameters.Add("type", "guest");
			request.Parameters.Add("has-children", "false");
			request.Parameters.Add("login", username);
			request.Parameters.Add("password", password);
			request.Parameters.Add("email", email);
			request.Parameters.Add("first-name", firstName);
			request.Parameters.Add("last-name", lastName);

			if(request.Execute() && request.Status == Status.OK) {

				XmlNode principal = request.XmlResults.SelectSingleNode("/results/principal");

				if(principal != null)
					return int.Parse(principal.Attributes["principal-id"].Value);
			}

			return 0;
		}
	}
}