using System;
using xCommons.Extensions;
using xExceptions.Constants;
using xIdentityModels.Navigations;
using xMessageService.Models;

namespace xIds.Providers
{
    public partial class XIdentityManager
    {
        //
        #region Message Provider ...
        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// User Invite Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="emailAddress">reciever email address</param>
        /// <param name="inviteToken">invitation token</param>
        /// <param name="returnUrl">return url for invitation user to redirect</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetUserInviteMessage(
            string lang,
            string emailAddress,
            string inviteToken,
            string returnUrl
        )
        {
            //
            ValidationProvider
                .NotEmpty(lang, emailAddress, inviteToken, returnUrl);
            ValidationProvider
                .EmailAddress(emailAddress);
            ValidationProvider
                .Url(returnUrl);

            //
            HandleMessageProviderPreperation(lang);

            //
            var msgStr = IdentityMessageProvider.InviteMsg +
                Environment.NewLine +
                returnUrl +
                "?t=" +
                inviteToken;

            //
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(emailAddress);

            //
            return message;
        }

        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// New Device LoggedIn Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="emailAddress">reciever email address</param>
        /// <param name="device">an instance of <see>XDevice</see> which represent user new Device</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetUserNewDeviceLoggedInMessage(
            string lang,
            string emailAddress,
            XDevice device
        )
        {
            //
            ValidationProvider
                .NotEmpty(lang, emailAddress);
            ValidationProvider
                .EmailAddress(emailAddress);
            ValidationProvider
                .NotNull(device);

            //
            HandleMessageProviderPreperation(lang);

            //
            // Generate Specific Message ...
            var msgStr = IdentityMessageProvider.NewDeviceLoggedInMsg +
                Environment.NewLine +
                nameof(XDevice.Os) + ": " + device.Os +
                Environment.NewLine +
                nameof(XDevice.OsVersion) + ": " + device.OsVersion +
                Environment.NewLine +
                nameof(XDevice.Browser) + ": " + device.Browser +
                Environment.NewLine +
                nameof(XDevice.UserAgent) + ": " + device.UserAgent;

            //
            // Create XMessage Instance ...
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(emailAddress);

            //
            return message;
        }

        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// Verification Code Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="mobileNumberOrEmail">an string which points to a user email address or mobile number</param>
        /// <param name="verificationCode">user verification code</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetVerificationCodeMessage(
            string lang,
            string mobileNumberOrEmail,
            string verificationCode
        )
        {
            //
            ValidationProvider
                .NotEmpty(lang, mobileNumberOrEmail, verificationCode);

            //
            HandleMessageProviderPreperation(lang);

            //
            mobileNumberOrEmail = mobileNumberOrEmail.ToNormalString();

            //
            // Validate Mobile or Email ...
            var isValidEmail = mobileNumberOrEmail.IsValidEmail();
            var isValidMobileNumber = mobileNumberOrEmail.IsValidMobileNumber();
            if (!isValidEmail &&
                !isValidMobileNumber)
            {
                XException.InvalidData.Throw();
            }

            //
            // Prepare Message String ...
            var msgStr = IdentityMessageProvider.VerificationCodeMsg +
                Environment.NewLine +
                verificationCode;

            //
            // Create XMessage Instance ...
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(mobileNumberOrEmail);

            //
            return message;
        }

        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// Registration Approve Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="emailAddress">reciever email address</param>
        /// <param name="actionToken">a token which approved user action</param>
        /// <param name="returnUrl">return url for redirect</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetRegistrationConfirmMessage(
            string lang,
            string emailAddress,
            string actionToken,
            string returnUrl
        )
        {
            //
            ValidationProvider
                .NotEmpty(lang, emailAddress, actionToken, returnUrl);
            ValidationProvider
                .EmailAddress(emailAddress);
            ValidationProvider
                .Url(returnUrl);

            //
            HandleMessageProviderPreperation(lang);

            //
            // Prepare Message Str ...
            var msgStr = IdentityMessageProvider.RegistrationApproveMsg +
                Environment.NewLine +
                returnUrl +
                "?t=" +
                actionToken;

            //
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(emailAddress);

            //
            return message;
        }

        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// Registration Finished Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="emailAddress">reciever email address</param>
        /// <param name="returnUrl">return url for redirect</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetRegistrationFinishedMessage(
            string lang,
            string emailAddress,
            string returnUrl
        )
        {
            //
            ValidationProvider
                .NotEmpty(lang, emailAddress, returnUrl);
            ValidationProvider
                .EmailAddress(emailAddress);
            ValidationProvider
                .Url(returnUrl);

            //
            HandleMessageProviderPreperation(lang);

            //
            var msgStr = IdentityMessageProvider.RegisteredMsg +
                Environment.NewLine +
                returnUrl;

            //
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(emailAddress);

            //
            return message;
        }

        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// Password Changed Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="emailAddress">reciever email address</param>
        /// <param name="returnUrl">return url for redirect</param>
        /// <param name="throwException">specify throw exceptions on failure or not, default is true</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetPasswordChangedMessage(
            string lang,
            string emailAddress,
            string returnUrl,
            bool throwException = true
        )
        {
            //
            if (throwException)
            {
                ValidationProvider
                    .NotEmpty(lang, emailAddress, returnUrl);
                ValidationProvider
                    .EmailAddress(emailAddress);
                ValidationProvider
                    .Url(returnUrl);
            }

            //
            HandleMessageProviderPreperation(lang);

            //
            var msgStr = IdentityMessageProvider.PasswordChangedMsg +
                (returnUrl.IsNullOrEmpty() ?
                    "" :
                    Environment.NewLine +
                    returnUrl);

            //
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(emailAddress);

            //
            return message;
        }

        /// <summary>
        /// Generate and Prepare an XMessage Instance for 
        /// Reset Password Action
        /// </summary>
        /// <param name="lang">specify destination language</param>
        /// <param name="emailAddress">reciever email address</param>
        /// <param name="actionToken">a token which approved user action</param>
        /// <param name="returnUrl">return url for redirect</param>
        /// <returns>an instance of <see>XMessage</see></returns>
        private XMessage GetResetPasswordMessage(
            string lang,
            string emailAddress,
            string actionToken,
            string returnUrl
        )
        {
            //
            ValidationProvider
                .NotEmpty(lang, emailAddress, actionToken, returnUrl);
            ValidationProvider
                .EmailAddress(emailAddress);
            ValidationProvider
                .Url(returnUrl);

            //
            HandleMessageProviderPreperation(lang);

            //
            // Prepare Message Str ...
            var msgStr = IdentityMessageProvider.ChangePasswordMsg +
                Environment.NewLine +
                returnUrl +
                "?t=" +
                actionToken;

            //
            var message = new XMessage
            {
                Message = msgStr,
            };
            message.Recievers.Add(emailAddress);

            //
            return message;
        }
        #endregion
    }
}