Load bot credentials from an .env file (#138)

* Added an Extensions module for the chatbot

.env.example

@@ -31,4 +31,12 @@ DENTAL_SERVICES_IMAGES_PATH=/home/DentalServices
 REMINDER_TIME_IN_ADVANCE=1 # In days.
 # Indicates the schedule at which the reminder will be sent.
 # The schedule must be a cron expression.
-REMINDER_CRON_EXPR=0 0 8 * * ? * # At 08:00:00am every day.
+REMINDER_CRON_EXPR=0 0 8 * * ? * # At 08:00:00am every day.
+
+#
+# Bot credentials
+#
+MICROSOFT_APP_TYPE=
+MICROSOFT_APP_ID=
+MICROSOFT_APP_PASSWORD=
+MICROSOFT_APP_TENANT_ID=

src/Configuration/BotSettings.cs

@@ -0,0 +1,9 @@
+namespace DentallApp.Configuration;
+
+public class BotSettings
+{
+    public string MicrosoftAppType { get; set; }
+    public string MicrosoftAppId { get; set; }
+    public string MicrosoftAppPassword { get; set; }
+    public string MicrosoftAppTenantId { get; set; }
+}

src/Features/Chatbot/Extensions/ConfigurationExtensions.cs

@@ -0,0 +1,14 @@
+namespace DentallApp.Features.Chatbot.Extensions;
+
+public static class ConfigurationExtensions
+{
+    public static IConfiguration SetBotCredentials(this IConfiguration configuration)
+    {
+        var botSettings = new EnvBinder().Bind<BotSettings>();
+        configuration[MicrosoftAppCredentials.MicrosoftAppTypeKey]     = botSettings.MicrosoftAppType    .Trim();
+        configuration[MicrosoftAppCredentials.MicrosoftAppIdKey]       = botSettings.MicrosoftAppId      .Trim();
+        configuration[MicrosoftAppCredentials.MicrosoftAppPasswordKey] = botSettings.MicrosoftAppPassword.Trim();
+        configuration[MicrosoftAppCredentials.MicrosoftAppTenantIdKey] = botSettings.MicrosoftAppTenantId.Trim();
+        return configuration;
+    }
+}

src/Features/Chatbot/ServiceCollectionExtensions.cs → src/Features/Chatbot/Extensions/ServiceCollectionExtensions.cs

@@ -1,4 +1,4 @@
-namespace DentallApp.Features.Chatbot;
+namespace DentallApp.Features.Chatbot.Extensions;
 
 public static class ServiceCollectionExtensions
 {

src/Features/Chatbot/WaterfallStepContextExtensions.cs → src/Features/Chatbot/Extensions/WaterfallStepContextExtensions.cs

@@ -1,4 +1,4 @@
-namespace DentallApp.Features.Chatbot;
+namespace DentallApp.Features.Chatbot.Extensions;
 
 public static class WaterfallStepContextExtensions
 {

src/GlobalUsings.cs

@@ -4,6 +4,7 @@
 global using DentallApp.Features.Chatbot.Helpers;
 global using DentallApp.Features.Chatbot.Models;
 global using DentallApp.Features.Chatbot.Handlers;
+global using DentallApp.Features.Chatbot.Extensions;
 global using DentallApp.Features.GeneralTreatments;
 global using DentallApp.Features.GeneralTreatments.DTOs;
 global using DentallApp.Features.SpecificTreatments;

src/Program.cs

@@ -23,6 +23,7 @@
 builder.Services.AddSendGrid(options => options.ApiKey = settings.SendGridApiKey);
 builder.Services.AddSwagger();
 builder.Services.AddAuthenticationJwtBearer(settings);
+builder.Configuration.SetBotCredentials();
 builder.Services.AddBotServices();
 builder.Services.AddQuartzJobs(settings);