Added Flight Service

FlightMicroservice/.dockerignore

+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**
\ No newline at end of file

FlightMicroservice/Controllers/FlightController.cs

+using FlightMicroservice.Models;
+using FlightMicroservice.Services;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace FlightMicroservice.Controllers
+{
+    [ApiController]
+    [Route("api/[controller]")]
+    public class FlightController : ControllerBase
+    {
+        private readonly IFlightService flightService;
+
+        public FlightController(IFlightService flightService)
+        {
+            this.flightService = flightService;
+        }
+
+        [HttpGet()]
+        public ActionResult GetFlights(string? origin = null, string? destination = null, DateTime? departureTime = null, DateTime? arrivalTime = null)
+        {
+            List<Flight> flights = flightService.GetFlights(origin, destination, departureTime, arrivalTime);
+            if (flights == null)
+                return BadRequest();
+
+            return Ok(flights);
+        }
+
+        [HttpGet("{id}")]
+        public ActionResult GetFlight(int id)
+        {
+            Flight? flight = flightService.GetFlight(id);
+            if (flight == null)
+                return NotFound($"Could Not Find a Flight with Id: {id}");
+
+            return Ok(flight);
+        }
+
+        [Authorize]
+        [HttpPost()]
+        public ActionResult AddFlight([FromBody] FlightCreationModel model)
+        {
+            Flight flight = flightService.CreateFlight(
+                model.Origin, model.Destination, model.DepartureTime, model.ArrivalTime,
+                model.EconomyCapacity, model.BusinessCapacity, model.EconomyPrice, model.BusinessPrice);
+
+            if (flight == null)
+                return BadRequest("Failed to create the flight.");
+
+            return Ok(flight);
+        }
+
+        [Authorize]
+        [HttpGet("{flightId}/capacity")]
+        public ActionResult GetFlightCapacity([FromRoute] int flightId, [FromQuery] ClassType classType)
+        {
+            Flight? flight = flightService.GetFlight(flightId);
+            if (flight == null)
+                return NotFound($"Could Not Find a Flight with Id: {flightId}");
+
+            int seatCapacity = classType == ClassType.BUSINESS ? flight.BusinessCapacity : flight.EconomyCapacity;
+
+            return Ok(new { ClassType = classType.ToString(), Capacity = seatCapacity });
+        }
+
+
+    }
+}

FlightMicroservice/Controllers/SeatController.cs

+using FlightMicroservice.Models;
+using FlightMicroservice.Services;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace FlightMicroservice.Controllers
+{
+    [ApiController]
+    [Route("api/[controller]")]
+    public class SeatController : ControllerBase
+    {
+        private readonly ISeatService seatService;
+
+        public SeatController(ISeatService seatService)
+        {
+            this.seatService = seatService;        
+        }
+
+        [HttpGet]
+        public ActionResult GetSeats() 
+        {
+            List<Seat> seats = seatService.GetSeats();
+            if(seats == null)
+                return BadRequest();
+
+            return Ok(seats);
+        }
+
+        [HttpGet("{id}")]
+        public ActionResult GetSeat(int id)
+        {
+            Seat? seat = seatService.GetSeat(id);
+            if(seat == null)
+                return NotFound($"Could Not Find Seat of Id: {id}");
+
+            return Ok(seat);
+        }
+
+        [Authorize]
+        [HttpPut("{id}")]
+        public ActionResult BookSeat(int id)
+        {
+            try
+            {
+                seatService.BookSeat(id);
+                return Ok();
+            } 
+            catch (KeyNotFoundException ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+
+
+        [HttpGet("{id}/isAvailable")]
+        public ActionResult IsAvailable(int id)
+        {
+            try
+            {
+                bool isAvailable = seatService.IsAvailable(id);
+                return Ok(new { IsAvailable = isAvailable });
+            }
+            catch (KeyNotFoundException ex)
+            {
+                return BadRequest(ex.Message);
+            }            
+        }
+    }
+}

FlightMicroservice/Dockerfile

+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+USER app
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["FlightMicroservice.csproj", "."]
+RUN dotnet restore "./FlightMicroservice.csproj"
+COPY . .
+WORKDIR "/src/."
+RUN dotnet build "./FlightMicroservice.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./FlightMicroservice.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "FlightMicroservice.dll"]
\ No newline at end of file

FlightMicroservice/FlightMicroservice.csproj

+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>78cc9c8d-b053-40f7-a429-a85bbb577e26</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    <DockerfileContext>.</DockerfileContext>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.2" />
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.6" />
+    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="8.0.1" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+</Project>

FlightMicroservice/FlightMicroservice.csproj.user

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>http</ActiveDebugProfile>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <DebuggerFlavor>ProjectDebugger</DebuggerFlavor>
+  </PropertyGroup>
+</Project>
\ No newline at end of file

FlightMicroservice/FlightMicroservice.http

+@FlightMicroservice_HostAddress = http://localhost:5175
+
+GET {{FlightMicroservice_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

FlightMicroservice/FlightMicroservice.sln

+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34622.214
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FlightMicroservice", "FlightMicroservice.csproj", "{E3CFECA9-1502-4C6D-B8AE-227B91C9D77C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{E3CFECA9-1502-4C6D-B8AE-227B91C9D77C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E3CFECA9-1502-4C6D-B8AE-227B91C9D77C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E3CFECA9-1502-4C6D-B8AE-227B91C9D77C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E3CFECA9-1502-4C6D-B8AE-227B91C9D77C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2EF46619-6121-43AA-AA9A-229600A078A6}
+	EndGlobalSection
+EndGlobal

FlightMicroservice/Models/ApplicationDbContext.cs

+using Microsoft.EntityFrameworkCore;
+using static Microsoft.EntityFrameworkCore.DbLoggerCategory;
+
+namespace FlightMicroservice.Models
+{
+    public class ApplicationDbContext : DbContext
+    {
+        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
+            : base(options)
+        {
+        }
+
+        public DbSet<Flight> Flights { get; set; }
+        public DbSet<Seat> Seats { get; set; }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<Seat>()
+                .HasOne(seat => seat.Flight)
+                .WithMany(flight => flight.Seats)
+                .HasForeignKey(seat => seat.FlightId);
+        }
+    }
+}

FlightMicroservice/Models/Flight.cs

+namespace FlightMicroservice.Models
+{
+    public class Flight
+    {
+        internal static readonly int BUSINESS_SEATS_PER_ROW = 4;
+        internal static readonly int ECONOMY_SEATS_PER_ROW = 6;
+
+        public int Id { get; private set; }
+        public string Origin { get; internal set; }
+        public string Destination { get; internal set; }
+        public DateTime DepartureTime { get; internal set; }
+        public DateTime ArrivalTime { get; internal set; }
+        public int EconomyCapacity { get; internal set; }
+        public int BusinessCapacity { get; internal set; }
+        public decimal EconomyPrice { get; internal set; }
+        public decimal BusinessPrice { get; internal set; }
+        public ICollection<Seat> Seats { get; internal set; }
+
+        public Flight() => Seats = new List<Seat>();
+
+        public Flight(string origin, 
+                      string destination,  
+                      DateTime departureTime, 
+                      DateTime arrivalTime,
+                      int economyCapacity, 
+                      int businessCapacity, 
+                      decimal economyPrice, 
+                      decimal businessPrice
+            )
+        {
+            if(!IsCapacityValid(economyCapacity, ECONOMY_SEATS_PER_ROW))
+                throw new ArgumentException($"Capacity of Economy seats must be a multiple of {ECONOMY_SEATS_PER_ROW}");
+
+            if (!IsCapacityValid(businessCapacity, BUSINESS_SEATS_PER_ROW))
+                throw new ArgumentException($"Capacity of Business seats must be a multiple of {BUSINESS_SEATS_PER_ROW}");
+
+            Origin = origin;
+            Destination = destination;
+            DepartureTime = departureTime;
+            ArrivalTime = arrivalTime;
+            EconomyCapacity = economyCapacity;
+            BusinessCapacity = businessCapacity;
+            EconomyPrice = economyPrice;
+            BusinessPrice = businessPrice;
+            Seats = new List<Seat>();
+        }
+
+        private bool IsCapacityValid(int numberOfSeats, int multipleOf)
+        {
+            return numberOfSeats % multipleOf == 0;
+        }
+    }
+}

FlightMicroservice/Models/FlightCreationModel.cs

+namespace FlightMicroservice.Models
+{
+    public class FlightCreationModel
+    {
+        public required string Origin { get; set; }
+        public required string Destination { get; set; }
+        public required DateTime DepartureTime { get; set; }
+        public required DateTime ArrivalTime { get; set; }
+        public required int EconomyCapacity { get; set; }
+        public required int BusinessCapacity { get; set; }
+        public required decimal EconomyPrice { get; set; }
+        public required decimal BusinessPrice { get; set; }
+    }
+}

FlightMicroservice/Models/Seat.cs

+namespace FlightMicroservice.Models
+{
+    public class Seat
+    {
+        public int Id { get; private set; }
+        public int FlightId { get; internal set; }
+        public string SeatNumber { get; internal set; }
+        public ClassType ClassType { get; internal set; }
+        public bool IsAvailable { get; internal set; }
+        public Flight Flight { get; internal set; }
+
+        public Seat() { }
+
+        public Seat(int flightId, string seatNumber, ClassType classType, bool isAvailable)
+        {
+            FlightId = flightId;
+            SeatNumber = seatNumber;
+            ClassType = classType;
+            IsAvailable = isAvailable;
+        }
+    }
+
+    public enum ClassType
+    {
+        BUSINESS = 0,
+        ECONOMY = 1
+    }
+
+}

FlightMicroservice/Program.cs

+using FlightMicroservice.Models;
+using FlightMicroservice.Services;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
+using System.Text;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+builder.Services.AddDbContext<ApplicationDbContext>(options =>
+    options.UseMySql(builder.Configuration.GetConnectionString("DefaultConnection"),
+    new MariaDbServerVersion(new Version(10, 4, 20))));
+
+builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+    .AddJwtBearer(options =>
+    {
+        options.TokenValidationParameters = new TokenValidationParameters
+        {
+            ValidateIssuerSigningKey = true,
+            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(builder.Configuration["Jwt:Key"])),
+            ValidateIssuer = true,
+            ValidateAudience = true,
+            ValidIssuer = builder.Configuration["Jwt:Issuer"],
+            ValidAudience = builder.Configuration["Jwt:Audience"]
+        };
+    });
+
+// Add dependency injections
+builder.Services.AddScoped<IFlightService, FlightService>();
+builder.Services.AddScoped<ISeatService, SeatService>();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

FlightMicroservice/Properties/launchSettings.json

+{
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:5175"
+    },
+    "https": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7019;http://localhost:5175"
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Container (Dockerfile)": {
+      "commandName": "Docker",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/swagger",
+      "environmentVariables": {
+        "ASPNETCORE_HTTPS_PORTS": "8081",
+        "ASPNETCORE_HTTP_PORTS": "8080"
+      },
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:30200",
+      "sslPort": 44344
+    }
+  }
+}
\ No newline at end of file

FlightMicroservice/Services/FlightService.cs

+using FlightMicroservice.Models;
+
+namespace FlightMicroservice.Services
+{
+    public class FlightService : IFlightService
+    {
+        private readonly ApplicationDbContext dbContext;
+
+        public FlightService(ApplicationDbContext dbContext)
+        {
+            this.dbContext = dbContext;
+        }
+
+        public Flight? GetFlight(int flightId)
+        {
+            Flight? flight = dbContext.Flights.SingleOrDefault(flight => flight.Id == flightId);
+            return flight;
+        }
+
+        public List<Flight> GetFlights(string? origin, string? destination, DateTime? departureTime, DateTime? arrivalTime)
+        {
+            IQueryable<Flight> query = dbContext.Flights.AsQueryable();
+
+            if (!string.IsNullOrWhiteSpace(origin))
+                query = query.Where(flight => flight.Origin == origin);
+
+            if (!string.IsNullOrWhiteSpace(destination))
+                query = query.Where(flight => flight.Destination == destination);
+
+            if (departureTime.HasValue)
+                query = query.Where(flight => flight.DepartureTime.Date == departureTime.Value.Date);
+
+            if (arrivalTime.HasValue)
+                query = query.Where(flight => flight.ArrivalTime.Date == arrivalTime.Value.Date);
+
+            return query.ToList();
+        }
+
+        public Flight CreateFlight(
+            string origin, 
+            string destination, 
+            DateTime departureTime, 
+            DateTime arrivalTime, 
+            int economyCapacity, 
+            int businessCapacity, 
+            decimal economyPrice, 
+            decimal businessPrice)
+        {
+            Flight flight = new Flight(origin, destination, departureTime, arrivalTime, economyCapacity, businessCapacity, economyPrice, businessPrice);
+
+            InitializeSeatsForFlight(flight);
+
+            dbContext.Flights.Add(flight);
+            dbContext.SaveChanges();
+
+            return flight;
+        }
+
+        public bool RemoveFlight(int flightId) 
+        { 
+            Flight? flight = dbContext.Flights.SingleOrDefault(flight => flight.Id == flightId);
+            if (flight == null)
+                return false;
+
+            dbContext.Flights.Remove(flight);
+            dbContext.SaveChanges();
+
+            return true;
+        }
+
+        private void InitializeSeatsForFlight(Flight flight)
+        {
+            int businessRows = flight.BusinessCapacity / Flight.BUSINESS_SEATS_PER_ROW;
+            int economyRows = flight.EconomyCapacity / Flight.ECONOMY_SEATS_PER_ROW;
+
+            // Initialize Business class seats
+            for (int row = 1; row <= businessRows; row++)
+            {
+                for (char seat = 'A'; seat < 'A' + Flight.BUSINESS_SEATS_PER_ROW; seat++)
+                {
+                    flight.Seats.Add(new Seat
+                    {
+                        ClassType = ClassType.BUSINESS,
+                        SeatNumber = $"{row}{seat}",
+                        IsAvailable = true
+                    });
+                }
+            }
+
+            // Initialize Economy class seats
+            int startingEconomyRow = businessRows + 1; // Economy rows start after the last Business row
+            for (int row = startingEconomyRow; row < startingEconomyRow + economyRows; row++)
+            {
+                for (char seat = 'A'; seat < 'A' + Flight.ECONOMY_SEATS_PER_ROW; seat++)
+                {
+                    flight.Seats.Add(new Seat
+                    {
+                        ClassType = ClassType.ECONOMY,
+                        SeatNumber = $"{row}{seat}",
+                        IsAvailable = true
+                    });
+                }
+            }
+        }
+
+    }
+
+
+}
+

FlightMicroservice/Services/IFlightService.cs

+using FlightMicroservice.Models;
+
+namespace FlightMicroservice.Services
+{
+    public interface IFlightService
+    {
+        Flight? GetFlight(int flightId);
+        List<Flight> GetFlights(string? origin, string? destination, DateTime? departureTime, DateTime? arrivalTime);
+        Flight CreateFlight(string origin, string destination, DateTime departureTime, DateTime arrivalTime, int economyCapacity, int businessCapacity, decimal economyPrice, decimal businessPrice);
+        bool RemoveFlight(int flightId);
+    }
+}

FlightMicroservice/Services/ISeatService.cs

+using FlightMicroservice.Models;
+
+namespace FlightMicroservice.Services
+{
+    public interface ISeatService
+    {
+        List<Seat> GetSeats();
+        Seat? GetSeat(int id);
+        void BookSeat(int id);
+        bool IsAvailable(int id);
+    }
+}

FlightMicroservice/Services/SeatService.cs

+using FlightMicroservice.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace FlightMicroservice.Services
+{
+    public class SeatService : ISeatService
+    {
+        private readonly ApplicationDbContext dbContext;
+
+        public SeatService(ApplicationDbContext dbContext)
+        {
+            this.dbContext = dbContext;
+        }
+
+        public List<Seat> GetSeats()
+        {
+            List<Seat> seats = dbContext.Seats.ToList();
+            return seats;
+        }
+
+        public Seat? GetSeat(int id)
+        {
+            Seat? seat = dbContext.Seats.FirstOrDefault(seat => seat.Id == id);
+            return seat;
+        }
+
+        public void BookSeat(int id)
+        {
+            int affectedRows = dbContext.Seats
+                .Where(seat => seat.Id == id)
+                .ExecuteUpdate(setters => setters
+                    .SetProperty(seat => seat.IsAvailable, true));
+            
+            dbContext.SaveChanges();
+            
+            if (affectedRows == 0)
+                throw new KeyNotFoundException($"A seat with the ID {id} was not found.");
+        }
+
+        public bool IsAvailable(int id)
+        {
+            Seat? seat = dbContext.Seats.FirstOrDefault(seat => seat.Id == id);
+            if(seat == null)
+                throw new KeyNotFoundException($"A seat with the ID {id} was not found.");
+
+            return seat.IsAvailable;
+        }
+    }
+}

FlightMicroservice/appsettings.Development.json

+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

FlightMicroservice/appsettings.json

+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "DefaultConnection": "server=localhost;port=3308;database=AspNetCoreDb;user=root;password=;CharSet=utf8mb4;"
+  },
+  "Jwt": {
+    "Key": "0QTrd3jToEYj205k01A2R87Hc5YpqDNeywg7JzQpczs=",
+    "Issuer": "http://localhost:5175",
+    "Audience": "http://localhost:5175"
+  }
+}