424 lines
21 KiB
C#
424 lines
21 KiB
C#
using System.Text.Json;
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using InnovEnergy.App.Backend.DataTypes;
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using InnovEnergy.Lib.Mailer;
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using MailKit.Net.Smtp;
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using MailKit.Security;
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using MimeKit;
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namespace InnovEnergy.App.Backend.Services;
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public static class ReportEmailService
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{
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/// <summary>
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/// Sends the weekly report as a nicely formatted HTML email in the user's language.
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/// Uses MailKit directly (same config as existing Mailer library) but with HTML support.
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/// </summary>
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public static async Task SendReportEmailAsync(WeeklyReportResponse report, string recipientEmail, string language = "en")
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{
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var strings = GetStrings(language);
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var subject = $"{strings.Title} — {report.InstallationName} ({report.PeriodStart} to {report.PeriodEnd})";
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var html = BuildHtmlEmail(report, strings);
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var config = await ReadMailerConfig();
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var from = new MailboxAddress(config.SenderName, config.SenderAddress);
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var to = new MailboxAddress(recipientEmail, recipientEmail);
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var msg = new MimeMessage
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{
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From = { from },
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To = { to },
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Subject = subject,
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Body = new TextPart("html") { Text = html }
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};
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Console.WriteLine($"[ReportEmailService] SMTP: {config.SmtpUsername}@{config.SmtpServerUrl}:{config.SmtpPort}");
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using var smtp = new SmtpClient();
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await smtp.ConnectAsync(config.SmtpServerUrl, config.SmtpPort, SecureSocketOptions.StartTls);
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await smtp.AuthenticateAsync(config.SmtpUsername, config.SmtpPassword);
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await smtp.SendAsync(msg);
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await smtp.DisconnectAsync(true);
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Console.WriteLine($"[ReportEmailService] Report sent to {recipientEmail}");
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}
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private static async Task<MailerConfig> ReadMailerConfig()
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{
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await using var fileStream = File.OpenRead(MailerConfig.DefaultFile);
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var config = await JsonSerializer.DeserializeAsync<MailerConfig>(fileStream);
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return config ?? throw new InvalidOperationException("Failed to read MailerConfig.json");
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}
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// ── Translation strings ─────────────────────────────────────────────────
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private record EmailStrings(
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string Title,
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string Insights,
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string Summary,
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string SavingsHeader,
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string DailyBreakdown,
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string Metric,
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string ThisWeek,
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string LastWeek,
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string Change,
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string PvProduction,
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string Consumption,
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string GridImport,
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string GridExport,
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string BatteryInOut,
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string SolarEnergyUsed,
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string StayedAtHome,
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string EstMoneySaved,
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string AtRate,
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string SolarCoverage,
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string FromSolar,
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string BatteryEff,
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string OutVsIn,
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string Day,
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string Load,
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string GridIn,
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string GridOut,
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string BattInOut,
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string Footer
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);
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private static EmailStrings GetStrings(string language) => language switch
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{
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"de" => new EmailStrings(
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Title: "Wöchentlicher Leistungsbericht",
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Insights: "Wöchentliche Erkenntnisse",
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Summary: "Wöchentliche Zusammenfassung",
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SavingsHeader: "Ihre Ersparnisse diese Woche",
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DailyBreakdown: "Tägliche Aufschlüsselung (kWh)",
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Metric: "Kennzahl",
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ThisWeek: "Diese Woche",
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LastWeek: "Letzte Woche",
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Change: "Änderung",
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PvProduction: "PV-Produktion",
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Consumption: "Verbrauch",
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GridImport: "Netzbezug",
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GridExport: "Netzeinspeisung",
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BatteryInOut: "Batterie Ein/Aus",
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SolarEnergyUsed: "Genutzte Solarenergie",
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StayedAtHome: "direkt genutzt",
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EstMoneySaved: "Geschätzte Ersparnis",
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AtRate: "bei 0.27 CHF/kWh",
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SolarCoverage: "Solare Deckung",
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FromSolar: "durch Solar",
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BatteryEff: "Batterie-Eff.",
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OutVsIn: "Aus vs. Ein",
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Day: "Tag",
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Load: "Last",
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GridIn: "Netz Ein",
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GridOut: "Netz Aus",
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BattInOut: "Batt. Ein/Aus",
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Footer: "Erstellt von <strong style=\"color:#666\">Inesco Energy Monitor Platform</strong> · Powered by Mistral AI"
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),
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"fr" => new EmailStrings(
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Title: "Rapport de performance hebdomadaire",
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Insights: "Aperçus de la semaine",
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Summary: "Résumé de la semaine",
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SavingsHeader: "Vos économies cette semaine",
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DailyBreakdown: "Détail quotidien (kWh)",
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Metric: "Indicateur",
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ThisWeek: "Cette semaine",
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LastWeek: "Semaine dernière",
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Change: "Variation",
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PvProduction: "Production PV",
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Consumption: "Consommation",
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GridImport: "Import réseau",
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GridExport: "Export réseau",
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BatteryInOut: "Batterie Entrée/Sortie",
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SolarEnergyUsed: "Énergie solaire utilisée",
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StayedAtHome: "autoconsommée",
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EstMoneySaved: "Économies estimées",
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AtRate: "à 0.27 CHF/kWh",
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SolarCoverage: "Couverture solaire",
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FromSolar: "depuis le solaire",
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BatteryEff: "Eff. batterie",
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OutVsIn: "sortie vs entrée",
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Day: "Jour",
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Load: "Charge",
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GridIn: "Réseau Ent.",
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GridOut: "Réseau Sor.",
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BattInOut: "Batt. Ent./Sor.",
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Footer: "Généré par <strong style=\"color:#666\">Inesco Energy Monitor Platform</strong> · Propulsé par Mistral AI"
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),
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"it" => new EmailStrings(
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Title: "Rapporto settimanale delle prestazioni",
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Insights: "Approfondimenti settimanali",
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Summary: "Riepilogo settimanale",
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SavingsHeader: "I tuoi risparmi questa settimana",
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DailyBreakdown: "Dettaglio giornaliero (kWh)",
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Metric: "Metrica",
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ThisWeek: "Questa settimana",
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LastWeek: "La settimana scorsa",
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Change: "Variazione",
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PvProduction: "Produzione PV",
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Consumption: "Consumo",
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GridImport: "Import dalla rete",
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GridExport: "Export nella rete",
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BatteryInOut: "Batteria Ent./Usc.",
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SolarEnergyUsed: "Energia solare utilizzata",
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StayedAtHome: "rimasta in casa",
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EstMoneySaved: "Risparmio stimato",
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AtRate: "a 0.27 CHF/kWh",
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SolarCoverage: "Copertura solare",
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FromSolar: "dal solare",
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BatteryEff: "Eff. batteria",
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OutVsIn: "uscita vs entrata",
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Day: "Giorno",
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Load: "Carico",
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GridIn: "Rete Ent.",
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GridOut: "Rete Usc.",
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BattInOut: "Batt. Ent./Usc.",
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Footer: "Generato da <strong style=\"color:#666\">Inesco Energy Monitor Platform</strong> · Powered by Mistral AI"
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),
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_ => new EmailStrings(
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Title: "Weekly Performance Report",
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Insights: "Weekly Insights",
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Summary: "Weekly Summary",
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SavingsHeader: "Your Savings This Week",
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DailyBreakdown: "Daily Breakdown (kWh)",
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Metric: "Metric",
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ThisWeek: "This Week",
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LastWeek: "Last Week",
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Change: "Change",
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PvProduction: "PV Production",
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Consumption: "Consumption",
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GridImport: "Grid Import",
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GridExport: "Grid Export",
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BatteryInOut: "Battery In/Out",
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SolarEnergyUsed: "Solar Energy Used",
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StayedAtHome: "stayed at home",
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EstMoneySaved: "Est. Money Saved",
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AtRate: "at 0.27 CHF/kWh",
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SolarCoverage: "Solar Coverage",
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FromSolar: "from solar",
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BatteryEff: "Battery Eff.",
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OutVsIn: "out vs in",
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Day: "Day",
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Load: "Load",
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GridIn: "Grid In",
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GridOut: "Grid Out",
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BattInOut: "Batt In/Out",
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Footer: "Generated by <strong style=\"color:#666\">Inesco Energy Monitor Platform</strong> · Powered by Mistral AI"
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)
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};
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// ── HTML email template ─────────────────────────────────────────────
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public static string BuildHtmlEmail(WeeklyReportResponse r, string language = "en")
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=> BuildHtmlEmail(r, GetStrings(language));
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private static string BuildHtmlEmail(WeeklyReportResponse r, EmailStrings s)
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{
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var cur = r.CurrentWeek;
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var prev = r.PreviousWeek;
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// Parse AI insight into <li> bullet points (split on newlines, strip leading "- " or "1. ")
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var insightLines = r.AiInsight
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.Split('\n', StringSplitOptions.RemoveEmptyEntries)
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.Select(l => System.Text.RegularExpressions.Regex.Replace(l.Trim(), @"^[\d]+[.)]\s*|^[-*]\s*", ""))
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.Where(l => l.Length > 0)
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.ToList();
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var insightHtml = insightLines.Count > 1
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? "<ul style=\"margin:0;padding-left:20px\">" +
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string.Join("", insightLines.Select(l => $"<li style=\"margin-bottom:8px;line-height:1.6\">{FormatInsightLine(l)}</li>")) +
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"</ul>"
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: $"<p style=\"margin:0;line-height:1.6\">{FormatInsightLine(r.AiInsight)}</p>";
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// Daily rows
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var dailyRows = "";
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foreach (var d in r.DailyData)
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{
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var dayName = DateTime.Parse(d.Date).ToString("ddd");
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var isCurrentWeek = string.Compare(d.Date, r.PeriodStart, StringComparison.Ordinal) >= 0;
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var bgColor = isCurrentWeek ? "#ffffff" : "#f9f9f9";
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dailyRows += $@"
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<tr style=""background:{bgColor}"">
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<td style=""padding:6px 10px;border-bottom:1px solid #eee"">{dayName} {d.Date}</td>
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<td style=""padding:6px 10px;border-bottom:1px solid #eee;text-align:right"">{d.PvProduction:F1}</td>
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<td style=""padding:6px 10px;border-bottom:1px solid #eee;text-align:right"">{d.LoadConsumption:F1}</td>
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<td style=""padding:6px 10px;border-bottom:1px solid #eee;text-align:right"">{d.GridImport:F1}</td>
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<td style=""padding:6px 10px;border-bottom:1px solid #eee;text-align:right"">{d.GridExport:F1}</td>
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<td style=""padding:6px 10px;border-bottom:1px solid #eee;text-align:right"">{d.BatteryCharged:F1}/{d.BatteryDischarged:F1}</td>
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</tr>";
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}
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// Week-over-week comparison rows
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var comparisonHtml = prev != null
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? $@"
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<tr>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee"">{s.PvProduction}</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;font-weight:bold"">{cur.TotalPvProduction:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:#888"">{prev.TotalPvProduction:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:{ChangeColor(r.PvChangePercent)}"">{FormatChange(r.PvChangePercent)}</td>
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</tr>
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<tr>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee"">{s.Consumption}</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;font-weight:bold"">{cur.TotalConsumption:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:#888"">{prev.TotalConsumption:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:{ChangeColor(-r.ConsumptionChangePercent)}"">{FormatChange(r.ConsumptionChangePercent)}</td>
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</tr>
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<tr>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee"">{s.GridImport}</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;font-weight:bold"">{cur.TotalGridImport:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:#888"">{prev.TotalGridImport:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:{ChangeColor(-r.GridImportChangePercent)}"">{FormatChange(r.GridImportChangePercent)}</td>
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</tr>
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<tr>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee"">{s.GridExport}</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;font-weight:bold"">{cur.TotalGridExport:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:#888"">{prev.TotalGridExport:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right"">—</td>
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</tr>
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<tr>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee"">{s.BatteryInOut}</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;font-weight:bold"">{cur.TotalBatteryCharged:F1}/{cur.TotalBatteryDischarged:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right;color:#888"">{prev.TotalBatteryCharged:F1}/{prev.TotalBatteryDischarged:F1} kWh</td>
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<td style=""padding:8px 12px;border-bottom:1px solid #eee;text-align:right"">—</td>
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</tr>"
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: $@"
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<tr><td style=""padding:8px 12px"">{s.PvProduction}</td><td style=""padding:8px 12px;text-align:right;font-weight:bold"">{cur.TotalPvProduction:F1} kWh</td></tr>
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<tr><td style=""padding:8px 12px"">{s.Consumption}</td><td style=""padding:8px 12px;text-align:right;font-weight:bold"">{cur.TotalConsumption:F1} kWh</td></tr>
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<tr><td style=""padding:8px 12px"">{s.GridImport}</td><td style=""padding:8px 12px;text-align:right;font-weight:bold"">{cur.TotalGridImport:F1} kWh</td></tr>
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<tr><td style=""padding:8px 12px"">{s.GridExport}</td><td style=""padding:8px 12px;text-align:right;font-weight:bold"">{cur.TotalGridExport:F1} kWh</td></tr>
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<tr><td style=""padding:8px 12px"">{s.BatteryInOut}</td><td style=""padding:8px 12px;text-align:right;font-weight:bold"">{cur.TotalBatteryCharged:F1}/{cur.TotalBatteryDischarged:F1} kWh</td></tr>";
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var comparisonHeaders = prev != null
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? $@"<th style=""padding:8px 12px;text-align:right"">{s.ThisWeek}</th>
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<th style=""padding:8px 12px;text-align:right"">{s.LastWeek}</th>
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<th style=""padding:8px 12px;text-align:right"">{s.Change}</th>"
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: $@"<th style=""padding:8px 12px;text-align:right"">{s.ThisWeek}</th>";
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return $@"
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<!DOCTYPE html>
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<html>
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<head><meta charset=""utf-8""></head>
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<body style=""margin:0;padding:0;background:#f4f4f4;font-family:Arial,Helvetica,sans-serif;font-size:14px;color:#333"">
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<table width=""100%"" cellpadding=""0"" cellspacing=""0"" style=""background:#f4f4f4;padding:20px 0"">
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<tr><td align=""center"">
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<table width=""600"" cellpadding=""0"" cellspacing=""0"" style=""background:#ffffff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.08)"">
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<!-- Header -->
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<tr>
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<td style=""background:#2c3e50;padding:24px 30px;color:#ffffff"">
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<div style=""font-size:20px;font-weight:bold"">{s.Title}</div>
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<div style=""font-size:14px;margin-top:6px;opacity:0.9"">{r.InstallationName}</div>
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<div style=""font-size:13px;margin-top:2px;opacity:0.7"">{r.PeriodStart} — {r.PeriodEnd}</div>
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</td>
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</tr>
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<!-- Weekly Insights (top) -->
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<tr>
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<td style=""padding:24px 30px 0"">
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<div style=""font-size:16px;font-weight:bold;margin-bottom:12px;color:#2c3e50"">{s.Insights}</div>
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<div style=""background:#fef9e7;border-left:4px solid #f39c12;padding:14px 18px;border-radius:0 6px 6px 0;font-size:14px;color:#333"">
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{insightHtml}
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</div>
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</td>
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</tr>
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<!-- Weekly Totals -->
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<tr>
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<td style=""padding:24px 30px"">
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<div style=""font-size:16px;font-weight:bold;margin-bottom:12px;color:#2c3e50"">{s.Summary}</div>
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<table width=""100%"" cellpadding=""0"" cellspacing=""0"" style=""border:1px solid #eee;border-radius:4px"">
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<tr style=""background:#f8f9fa"">
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<th style=""padding:8px 12px;text-align:left"">{s.Metric}</th>
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{comparisonHeaders}
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</tr>
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{comparisonHtml}
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</table>
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</td>
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</tr>
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<!-- Key Ratios -->
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<tr>
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<td style=""padding:0 30px 24px"">
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<div style=""font-size:16px;font-weight:bold;margin-bottom:12px;color:#2c3e50"">{s.SavingsHeader}</div>
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<table width=""100%"" cellpadding=""0"" cellspacing=""8"">
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<tr>
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{SavingsBox(s.SolarEnergyUsed, $"{r.CurrentWeek.TotalPvProduction - r.CurrentWeek.TotalGridExport:F1} kWh", s.StayedAtHome, "#27ae60")}
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{SavingsBox(s.EstMoneySaved, $"~{(r.CurrentWeek.TotalPvProduction - r.CurrentWeek.TotalGridExport) * 0.27:F1} CHF", s.AtRate, "#2980b9")}
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{SavingsBox(s.SolarCoverage, $"{r.SelfSufficiencyPercent:F0}%", s.FromSolar, "#8e44ad")}
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{SavingsBox(s.BatteryEff, $"{r.BatteryEfficiencyPercent:F0}%", s.OutVsIn, "#e67e22")}
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</tr>
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</table>
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</td>
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</tr>
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<!-- Daily Breakdown -->
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<tr>
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<td style=""padding:0 30px 24px"">
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<div style=""font-size:16px;font-weight:bold;margin-bottom:12px;color:#2c3e50"">{s.DailyBreakdown}</div>
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<table width=""100%"" cellpadding=""0"" cellspacing=""0"" style=""border:1px solid #eee;border-radius:4px;font-size:13px"">
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<tr style=""background:#f8f9fa"">
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<th style=""padding:6px 10px;text-align:left"">{s.Day}</th>
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<th style=""padding:6px 10px;text-align:right"">PV</th>
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<th style=""padding:6px 10px;text-align:right"">{s.Load}</th>
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<th style=""padding:6px 10px;text-align:right"">{s.GridIn}</th>
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<th style=""padding:6px 10px;text-align:right"">{s.GridOut}</th>
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<th style=""padding:6px 10px;text-align:right"">{s.BattInOut}</th>
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</tr>
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{dailyRows}
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</table>
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</td>
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</tr>
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<!-- Footer -->
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<tr>
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<td style=""background:#f8f9fa;padding:16px 30px;text-align:center;font-size:12px;color:#999;border-top:1px solid #eee"">
|
|
{s.Footer}
|
|
</td>
|
|
</tr>
|
|
|
|
</table>
|
|
</td></tr>
|
|
</table>
|
|
</body>
|
|
</html>";
|
|
}
|
|
|
|
private static string SavingsBox(string label, string value, string subtitle, string color) =>
|
|
$@"<td width=""25%"" style=""text-align:center"">
|
|
<div style=""background:#f8f9fa;border-radius:6px;padding:12px 4px"">
|
|
<div style=""font-size:22px;font-weight:bold;color:{color}"">{value}</div>
|
|
<div style=""font-size:12px;font-weight:bold;color:#444;margin-top:4px"">{label}</div>
|
|
<div style=""font-size:10px;color:#888;margin-top:2px"">{subtitle}</div>
|
|
</div>
|
|
</td>";
|
|
|
|
// Bolds "Title" before first colon, and numbers+units in the rest
|
|
private static string FormatInsightLine(string line)
|
|
{
|
|
var colonIdx = line.IndexOf(':');
|
|
string result;
|
|
if (colonIdx > 0)
|
|
{
|
|
var title = line[..colonIdx];
|
|
var rest = line[colonIdx..]; // includes the colon
|
|
result = $"<strong>{title}</strong>{rest}";
|
|
}
|
|
else
|
|
{
|
|
result = line;
|
|
}
|
|
// Bold numbers followed by units
|
|
result = System.Text.RegularExpressions.Regex.Replace(
|
|
result,
|
|
@"(\d+[\d,.]*\s*(?:kWh|CHF|%|days?))",
|
|
"<strong>$1</strong>");
|
|
return result;
|
|
}
|
|
|
|
private static string FormatChange(double pct) =>
|
|
pct == 0 ? "—" : pct > 0 ? $"+{pct:F1}%" : $"{pct:F1}%";
|
|
|
|
private static string ChangeColor(double pct) =>
|
|
pct > 0 ? "#27ae60" : pct < 0 ? "#e74c3c" : "#888";
|
|
}
|