110 lines
2.8 KiB
C#
110 lines
2.8 KiB
C#
using MQTTnet;
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using MQTTnet.Client;
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using backend.Application;
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using backend.Models;
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var builder = WebApplication.CreateBuilder(args);
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// Add services to the container.
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builder.Services.AddControllers();
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// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
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builder.Services.AddEndpointsApiExplorer();
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builder.Services.AddSwaggerGen();
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var app = builder.Build();
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// Configure the HTTP request pipeline.
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if (app.Environment.IsDevelopment())
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{
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app.UseSwagger();
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app.UseSwaggerUI();
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}
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app.UseCors(builder => {
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builder.AllowAnyHeader();
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builder.WithOrigins("http://localhost:5173");
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builder.AllowCredentials();
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builder.AllowAnyMethod();
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});
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//app.UseHttpsRedirection();
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app.UseAuthorization();
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app.MapControllers();
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var configuration = app.Services.GetRequiredService<IConfiguration>();
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// Connect via MQTT
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Console.WriteLine($"Connecting to MQTT server: {configuration["Mqtt:Host"]}:{configuration["Mqtt:Port"]}...");
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var mqttClient = new MqttFactory().CreateMqttClient();
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var options = new MqttClientOptionsBuilder()
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.WithTcpServer(configuration["Mqtt:Host"], int.Parse(configuration["Mqtt:Port"]!))
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.WithCredentials(configuration["Mqtt:Username"], configuration["Mqtt:Password"])
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.WithTlsOptions(new MqttClientTlsOptionsBuilder().Build())
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.Build();
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await mqttClient.ConnectAsync(options, CancellationToken.None);
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await mqttClient.SubscribeAsync(
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new MqttFactory()
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.CreateSubscribeOptionsBuilder()
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.WithTopicFilter(f => f.WithTopic("login_request"))
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.WithTopicFilter(f => f.WithTopic("dispense_request"))
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.Build(),
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CancellationToken.None
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);
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ApplicationState.DbContext = new DispenserContext();
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mqttClient.ApplicationMessageReceivedAsync += delegate(MqttApplicationMessageReceivedEventArgs args) {
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var payload = System.Text.Encoding.Default.GetString(args.ApplicationMessage.PayloadSegment);
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User? user;
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MqttApplicationMessageBuilder message;
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switch (args.ApplicationMessage.Topic) {
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case "login_request":
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user = ApplicationState.DbContext!.Users.FirstOrDefault(user => user.TouchCode == payload);
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message = new MqttApplicationMessageBuilder()
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.WithTopic("login");
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if (user == null) {
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message.WithPayload("error");
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} else {
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message.WithPayload(user.Id.ToString());
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}
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mqttClient.PublishAsync(message.Build());
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break;
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case "dispense_request":
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user = ApplicationState.DbContext!.Users.FirstOrDefault(user => user.Id == int.Parse(payload));
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if (user == null || (!user.IsParent && user.Dispenses <= 0)) {
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// TODO error
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break;
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}
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message = new MqttApplicationMessageBuilder()
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.WithTopic("dispense")
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.WithPayload("dispense");
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mqttClient.PublishAsync(message.Build());
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break;
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}
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return Task.CompletedTask;
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};
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ApplicationState.MqttClient = mqttClient;
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Console.WriteLine("Connected");
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app.Run();
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