using System.Globalization;
using System.Text;
using MailKit.Net.Smtp;
using Marco.Pms.Model.Utilities;
using Marco.Pms.Model.ViewModels.Report;
using Microsoft.Extensions.Options;
using MimeKit;


namespace MarcoBMS.Services.Service
{
    public class EmailSender : IEmailSender
    {
        private readonly SmtpSettings _smtpSettings;
        private readonly IConfiguration _configuration;
        private readonly IWebHostEnvironment _env;

        public EmailSender(IOptions<SmtpSettings> emailSettings, IConfiguration configuration, IWebHostEnvironment env)
        {
            _smtpSettings = emailSettings.Value;
            _configuration = configuration;
            _env = env;
        }

        public async Task<string> GetEmailTemplate(string templateName, Dictionary<string, string> replacements)
        {
            string path = Path.Combine(_env.ContentRootPath, "EmailTemplates", $"{templateName}.html");

            if (!File.Exists(path))
                throw new FileNotFoundException("Template file not found");

            string content = await File.ReadAllTextAsync(path);

            foreach (var item in replacements)
            {
                content = content.Replace($"{{{{{item.Key}}}}}", item.Value);
            }

            return content;
        }

        public async Task SendResetPasswordEmailOnRegister(string toEmail, string toName, string resetLink)
        {
            var replacements = new Dictionary<string, string>
            {
                { "MAIL_TITLE", "New registration,Reset Your Password" },
                { "RESET_PWD_URL", resetLink },
                { "RECEIVER_NAME", toName }
            };

            List<string> toEmails = new List<string>
            {
                toEmail
            };
            string emailBody = await GetEmailTemplate("new-user-email", replacements);

            await SendEmailAsync(toEmails, "New user registration, Reset Your Password", emailBody);
        }
        public async Task SendResetPasswordEmail(string toEmail, string userName, string resetLink)
        {
            var replacements = new Dictionary<string, string>
            {
                { "MAIL_TITLE", "Reset Your Password" },
                { "RESET_PWD_URL", resetLink }
            };

            string emailBody = await GetEmailTemplate("forgot-password", replacements);

            List<string> toEmails = new List<string>
            {
                toEmail
            };

            await SendEmailAsync(toEmails, "Reset Your Password", emailBody);

        }

        public async Task SendResetPasswordSuccessEmail(string toEmail, string toName)
        {
            var replacements = new Dictionary<string, string>
            {
                { "MAIL_TITLE", "Reset Password Successful" },
                { "RECEIVER_NAME", toName }
            };

            string emailBody = await GetEmailTemplate("password-change-success", replacements);

            List<string> toEmails = new List<string>
            {
                toEmail
            };
            await SendEmailAsync(toEmails, "Password Changed Successfully", emailBody);

        }
        public async Task SendRequestDemoEmail(List<string> toEmails, InquiryEmailObject demoEmailObject)
        {

            var replacements = new Dictionary<string, string>
            {
                { "MAIL_TITLE", "User Requested a Demo" },
                { "ORGANIZATION_NAME", demoEmailObject.OrganizatioinName ?? string.Empty },
                { "EMAIL", demoEmailObject.Email ?? string.Empty},
                { "ABOUT", demoEmailObject.About ?? string.Empty },
                { "ORGANIZATION_SIZE", demoEmailObject.OragnizationSize ?? string.Empty },
                { "INDUSTRY_NAME", demoEmailObject.IndustryName ?? string.Empty },
                { "CONTACT_NAME", demoEmailObject.ContactPerson ?? string.Empty },
                { "CONTACT_NUMBER", demoEmailObject.ContactNumber ?? string.Empty }
            };
            string emailBody = await GetEmailTemplate("request-demo", replacements);

            await SendEmailAsync(toEmails, "User Requested a Demo", emailBody);

        }

        public async Task SendProjectStatisticsEmail(List<string> toEmails, ProjectStatisticReport report)
        {
            //List<string> toEmails = [
            //    "ashutosh.nehete@marcoaiot.com"
            //];
            var date = report.Date.ToString("dd-MMM-yyyy", CultureInfo.InvariantCulture);
            var replacements = new Dictionary<string, string>
            {
                {"DATE",date },
                {"PROJECT_NAME",report.ProjectName },
                {"TIMESTAMP",report.TimeStamp },
                {"TODAYS_ATTENDANCES", report.TodaysAttendances.ToString()},
                {"TOTAL_EMPLOYEES",report.TotalEmployees.ToString() },
                {"TODAYS_PLANNED",report.TotalPlannedTask.ToString() },
                {"TODAYS_COMPLETED",report.TotalCompletedTask.ToString() },
                {"REGULRIZATION_PENDING", report.RegularizationPending.ToString() },
                {"CHECKOUT_PRNDING",report.CheckoutPending.ToString() },
                {"TOTAL_PLANNED",report.TotalPlannedWork.ToString() },
                {"TOTAL_COMPLETED",report.TotalCompletedWork.ToString() },
                {"PROJECT_STATUS",report.CompletionStatus.ToString("P") },
                {"TODAYS_ASSIGNED",report.TodaysAssignTasks.ToString() },
                {"REPORT_PENDING",report.ReportPending.ToString() }
            };

            string emailBody = await GetEmailTemplate("project-report", replacements);
            //string emailBody = await GetEmailTemplate("test-project", replacements);

            var teamHtml = new StringBuilder();
            teamHtml.Append("<tr style=\"vertical-align:middle\">");
            int flag = 0;
            foreach (var item in report.TeamOnSite)
            {
                if (flag == 6)
                {
                    teamHtml.Append("</tr>");
                    teamHtml.Append("<tr style=\"vertical-align:middle\">");
                    flag = 0;
                }
                teamHtml.AppendFormat("<td class=\"team\" style=\"text-align:center\"><div style=\"border: 1px solid #d5d5d5; border-radius: 10px; margin: 10px 10px; padding: 10px;\"><div style=\"font-size: 15px; color: #525b75 \">{0}</div>  <div style=\"font-size: 20px; color: #003cc7; margin: 20px !important; font-weight: bold; \">{1}</div></div></td>", item.RoleName, item.NumberofEmployees);
                flag += 1;
            }
            teamHtml.Append("</tr>");
            emailBody = emailBody.Replace("{{TEAM_ON_SITE}}", teamHtml.ToString());

            var taskHtml = new StringBuilder();
            if (report.PerformedTasks.Count > 0)
            {
                foreach (var task in report.PerformedTasks)
                {
                    taskHtml.AppendFormat("<tr>\r\n<td style=\"text-align:left;\">\r\n<span style=\"padding-left: 10px; text-align: left;\">\r\n {0} \r\n</span><br />\r\n<span style=\"color: gray; font-size: small; padding-left: 10px;\"> {1} </span>\r\n</td>\r\n<td style=\"text-align:center\">\r\n {2} / {3} \r\n</td>\r\n<td style=\"text-align:center\">\r\n {4} \r\n</td>\r\n<td style=\"text-align:center\"> {5} </td>\r\n <td style=\"padding-left: 10px; text-align: left;\">\r\n",
                        task.Activity, task.Location, task.AssignedToday, task.Pending, task.CompletedToday, report.Date.ToString("dd-MMM-yyy"));
                    foreach (var member in task.Team)
                    {
                        taskHtml.AppendFormat(" {0} &nbsp; \r\n<span style=\"color: gray; font-size: small; padding-left: 10px;\">({1})</span>\r\n<br />",
                            member.Name, member.RoleName);
                    }
                    taskHtml.AppendFormat("</td>\r\n<td style=\"padding-left: 10px; max-width: 150px; text-align: left;\"> {0} </td>\r\n</tr>", task.Comment);
                }
            }
            else
            {
                taskHtml.Append("<tr><td colspan=\"6\"><span style=\"font-size: 18px; line-height: 25.2px; color: #666666;margin:10px\">No Activities (Tasks) Performed Today</span></td></tr>");
            }

            emailBody = emailBody.Replace("{{PERFORMED_TASK}}", taskHtml.ToString());

            var attendanceHtml = new StringBuilder();
            if (report.PerformedAttendance.Count > 0)
            {
                foreach (var attendance in report.PerformedAttendance)
                {
                    attendanceHtml.AppendFormat("<tr>\r\n<td style=\"text-align:left\">\r\n<span style=\"padding-left:10px;\"> {0} </span>\r\n</td>\r\n<td style=\"text-align:center\"> {1} </td>\r\n<td style=\"text-align:center\"> {2} </td>\r\n<td style=\"text-align:center\"> {3} </td>\r\n<td style=\"padding-left:10px; max-width:150px\"> {4} </td>\r\n</tr>",
                        attendance.Name, attendance.RoleName, attendance.InTime.ToString("dd-MMM-yyyy h:mm tt", CultureInfo.InvariantCulture), (attendance.OutTime != null ? attendance.OutTime.Value.ToString("dd-MMM-yyyy h:mm tt", CultureInfo.InvariantCulture) : ""), attendance.Comment);
                }
            }
            else
            {
                attendanceHtml.Append("<tr><td colspan=\"5\"><span style=\"font-size: 18px; line-height: 25.2px; color: #666666;margin:10px\">No Attendance  Performed Today</span></td></tr>");
            }

            emailBody = emailBody.Replace("{{PERFORMED_ATTENDANCE}}", attendanceHtml.ToString());
            string subject = $"DPR - {date} - {report.ProjectName}";
            await SendEmailAsync(toEmails, subject, emailBody);

        }

        public async Task SendEmailAsync(List<string> toEmails, string subject, string body)
        {
            var email = new MimeMessage();
            email.From.Add(new MailboxAddress(_smtpSettings.SenderName, _smtpSettings.SenderEmail));
            foreach (var toEmail in toEmails)
            {
                email.To.Add(MailboxAddress.Parse(toEmail));
            }
            email.Subject = subject;

            var bodyBuilder = new BodyBuilder { HtmlBody = body };
            email.Body = bodyBuilder.ToMessageBody();

            using var smtp = new SmtpClient();
            await smtp.ConnectAsync(_smtpSettings.SmtpServer, _smtpSettings.Port, MailKit.Security.SecureSocketOptions.StartTls);
            await smtp.AuthenticateAsync(_smtpSettings.SenderEmail, _smtpSettings.Password);
            await smtp.SendAsync(email);
            await smtp.DisconnectAsync(true);
        }
    }

}