feat: add parsing from files

Endpoint/Controllers/V1/Configuration/ScheduleController.cs

@@ -1,6 +1,8 @@
 using Asp.Versioning;
 using Cronos;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using Mirea.Api.DataAccess.Persistence;
@@ -11,15 +13,19 @@ using Mirea.Api.Endpoint.Common.MapperDto;
 using Mirea.Api.Endpoint.Common.Services;
 using Mirea.Api.Endpoint.Configuration.Model;
 using Mirea.Api.Endpoint.Configuration.Model.GeneralSettings;
+using Mirea.Api.Endpoint.Sync;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.IO;
 using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace Mirea.Api.Endpoint.Controllers.V1.Configuration;
 
 [ApiVersion("1.0")]
-public class ScheduleController(ILogger<ScheduleController> logger, IOptionsSnapshot<GeneralConfig> config, UberDbContext dbContext) : ConfigurationBaseController
+public class ScheduleController(ILogger<ScheduleController> logger, IOptionsSnapshot<GeneralConfig> config, UberDbContext dbContext, IServiceProvider provider) : ConfigurationBaseController
 {
     /// <summary>
     /// Retrieves the cron update schedule and calculates the next scheduled tasks based on the provided depth.
@@ -113,7 +119,7 @@ public class ScheduleController(ILogger<ScheduleController> logger, IOptionsSnap
         return generalConfig.ScheduleSettings!.CronUpdateSkipDateList
             .ConvertToDto();
     }
-        
+
 
     /// <summary>
     /// Updates the list of cron update skip dates in the configuration.
@@ -139,4 +145,62 @@ public class ScheduleController(ILogger<ScheduleController> logger, IOptionsSnap
 
         return Ok();
     }
+
+    /// <summary>
+    /// Uploads schedule files and initiates synchronization.
+    /// </summary>
+    /// <param name="files">The list of schedule files to upload.</param>
+    /// <param name="defaultCampus">The default campus for each uploaded file. Must match the number of files.</param>
+    /// <param name="force">If true, removes all existing lessons before synchronization. Default is false.</param>
+    /// <returns>Success or failure.</returns>
+    /// <exception cref="ControllerArgumentException">
+    /// Thrown if:
+    /// - No files are provided.
+    /// - The number of default campuses does not match the number of files.
+    /// - Any default campus is null or empty.
+    /// </exception>
+    [HttpPost("Upload")]
+    public async Task<ActionResult> UploadScheduleFiles(List<IFormFile>? files, [FromQuery] string[]? defaultCampus, [FromQuery] bool force = false)
+    {
+        if (files == null || files.Count == 0)
+            throw new ControllerArgumentException("No files were found.");
+
+        if (defaultCampus == null || files.Count != defaultCampus.Length)
+            throw new ControllerArgumentException("No default campuses are specified for the file.");
+
+        if (defaultCampus.Any(string.IsNullOrEmpty))
+            throw new ControllerArgumentException("Each file should have a default campus.");
+
+        var tempDirectory = Path.Combine(Path.GetTempPath(), Path.GetFileNameWithoutExtension(Path.GetRandomFileName()));
+
+        if (!Directory.Exists(tempDirectory))
+            Directory.CreateDirectory(tempDirectory);
+
+        List<(string, string)> filePaths = [];
+
+        for (var i = 0; i < files.Count; i++)
+        {
+            if (files[i].Length <= 0)
+                continue;
+
+            var filePath = Path.Combine(tempDirectory, files[i].FileName);
+
+            await using var stream = new FileStream(filePath, FileMode.Create);
+            await files[i].CopyToAsync(stream);
+
+            filePaths.Add((filePath, defaultCampus[i]));
+        }
+
+        var sync = (ScheduleSynchronizer)ActivatorUtilities.GetServiceOrCreateInstance(provider, typeof(ScheduleSynchronizer));
+
+        if (force)
+        {
+            dbContext.Lessons.RemoveRange(dbContext.Lessons.ToList());
+            await dbContext.SaveChangesAsync();
+        }
+
+        _ = sync.StartSync(filePaths, CancellationToken.None);
+
+        return Ok();
+    }
 }