bykovme/nswallet

using System;
using System.Collections.Generic;
using Android.App;
using Android.Content;
using Java.IO;
using NSWallet.Droid.Helpers;
using NSWallet.NetStandard.Interfaces;
using NSWallet.Shared.Helpers.Logs.AppLog;
using Xamarin.Forms;

[assembly: Dependency(typeof(EmailService))]
namespace NSWallet.Droid.Helpers
{
    public class EmailService : IEmailService
    {
        public bool OpenEmail(string popupName, List<string> to, string subject, string body, string attachmentPath = null)
        {
            try {
                var email = new Intent(Intent.ActionSend);
                email.PutExtra(Intent.ExtraEmail, to.ToArray());
                email.PutExtra(Intent.ExtraSubject, subject);
                email.PutExtra(Intent.ExtraText, body);

                if (attachmentPath != null) {
                    var newFilePath = getTempFilePath(attachmentPath);
                    if (newFilePath == null) {
                        return false;
                    }
                    email.PutExtra(Intent.ExtraStream, Android.Net.Uri.FromFile(new File(newFilePath)));
                    email.SetType("text/plain");
                }

                var activity = Forms.Context as Activity;
                activity.StartActivityForResult(Intent.CreateChooser(email, popupName), 0);
                return true;
            } catch(Exception ex) {
                AppLogs.Log(ex.Message, nameof(OpenEmail), nameof(EmailService));
                return false;
            }
        }

        string getTempFilePath(string sourcePath)
        {
            try {
                var externalPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath;
                var filename = System.IO.Path.GetFileName(sourcePath);
                var newFilePath = externalPath + "/" + filename;

                if (System.IO.File.Exists(newFilePath)) {
                    System.IO.File.Delete(newFilePath);
                }

                System.IO.File.Copy(sourcePath, newFilePath);
                return newFilePath;
            } catch(Exception ex) {
                AppLogs.Log(ex.Message, nameof(getTempFilePath), nameof(EmailService));
                return null;
            }
        }
    }
}