⏪ Revert "♻️ Proper folder system to index"

This reverts commit 1647aa2f1e.

DysonNetwork.Shared/Models/CloudFileIndex.cs

@@ -1,70 +1,30 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using System.Text.Json.Serialization;
 using Microsoft.EntityFrameworkCore;
 
 namespace DysonNetwork.Shared.Models;
 
-[Index(nameof(FolderId), nameof(AccountId))]
-[Index(nameof(FileId))]
+[Index(nameof(Path), nameof(AccountId))]
 public class SnCloudFileIndex : ModelBase
 {
-    public Guid Id { get; set; } = Guid.NewGuid();
+    public Guid Id { get; init; } = Guid.NewGuid();
 
     /// <summary>
-    /// Reference to the folder containing this file
+    /// The path of the file,
+    /// only store the parent folder.
+    /// With the trailing slash.
+    ///
+    /// Like /hello/here/ not /hello/here/text.txt or /hello/here
+    /// Or the user home folder files, store as /
+    ///
+    /// Besides, the folder name should be all query-safe, not contains % or
+    /// other special characters that will mess up the pgsql query
     /// </summary>
-    public Guid FolderId { get; init; }
-
-    /// <summary>
-    /// Navigation property to the folder
-    /// </summary>
-    [JsonIgnore]
-    public SnCloudFolder Folder { get; init; } = null!;
+    [MaxLength(8192)]
+    public string Path { get; init; } = null!;
 
     [MaxLength(32)] public string FileId { get; init; } = null!;
     public SnCloudFile File { get; init; } = null!;
     public Guid AccountId { get; init; }
     [NotMapped] public SnAccount? Account { get; init; }
-
-    /// <summary>
-    /// Cached full path of the file (stored in database for performance)
-    /// </summary>
-    [MaxLength(2048)]
-    public string Path { get; set; } = null!;
-
-    /// <summary>
-    /// Creates a new file index with the specified folder and file
-    /// </summary>
-    public static SnCloudFileIndex Create(SnCloudFolder folder, SnCloudFile file, Guid accountId)
-    {
-        // Build the full path by traversing the folder hierarchy
-        var pathSegments = new List<string>();
-        var currentFolder = folder;
-
-        while (currentFolder != null)
-        {
-            if (!string.IsNullOrEmpty(currentFolder.Name))
-            {
-                pathSegments.Insert(0, currentFolder.Name);
-            }
-            currentFolder = currentFolder.ParentFolder;
-        }
-
-        // Add the file name
-        if (!string.IsNullOrEmpty(file.Name))
-        {
-            pathSegments.Add(file.Name);
-        }
-
-        var fullPath = "/" + string.Join("/", pathSegments);
-
-        return new SnCloudFileIndex
-        {
-            FolderId = folder.Id,
-            FileId = file.Id,
-            AccountId = accountId,
-            Path = fullPath
-        };
-    }
 }

DysonNetwork.Shared/Models/CloudFolder.cs

@@ -1,103 +0,0 @@
-using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations.Schema;
-using Microsoft.EntityFrameworkCore;
-
-namespace DysonNetwork.Shared.Models;
-
-[Index(nameof(Path), nameof(AccountId))]
-[Index(nameof(ParentFolderId))]
-public class SnCloudFolder : ModelBase
-{
-    public Guid Id { get; set; } = Guid.NewGuid();
-
-    /// <summary>
-    /// The name of the folder
-    /// </summary>
-    [MaxLength(256)]
-    public string Name { get; init; } = null!;
-
-    /// <summary>
-    /// The full path of the folder (for querying purposes)
-    /// With trailing slash, e.g., /documents/work/
-    /// </summary>
-    [MaxLength(8192)]
-    public string Path { get; set; } = null!;
-
-    /// <summary>
-    /// Reference to the parent folder (null for root folders)
-    /// </summary>
-    public Guid? ParentFolderId { get; set; }
-
-    /// <summary>
-    /// Navigation property to the parent folder
-    /// </summary>
-    [ForeignKey(nameof(ParentFolderId))]
-    public SnCloudFolder? ParentFolder { get; init; }
-
-    /// <summary>
-    /// Navigation property to child folders
-    /// </summary>
-    [InverseProperty(nameof(ParentFolder))]
-    public List<SnCloudFolder> ChildFolders { get; init; } = [];
-
-    /// <summary>
-    /// Navigation property to files in this folder
-    /// </summary>
-    [InverseProperty(nameof(SnCloudFileIndex.Folder))]
-    public List<SnCloudFileIndex> Files { get; init; } = [];
-
-    /// <summary>
-    /// The account that owns this folder
-    /// </summary>
-    public Guid AccountId { get; init; }
-
-    /// <summary>
-    /// Navigation property to the account
-    /// </summary>
-    [NotMapped]
-    public SnAccount? Account { get; init; }
-
-    /// <summary>
-    /// Optional description for the folder
-    /// </summary>
-    [MaxLength(4096)]
-    public string? Description { get; init; }
-
-    /// <summary>
-    /// Custom metadata for the folder
-    /// </summary>
-    [Column(TypeName = "jsonb")]
-    public Dictionary<string, object?>? FolderMeta { get; init; }
-
-    /// <summary>
-    /// Creates a new folder with proper path normalization
-    /// </summary>
-    public static SnCloudFolder Create(string name, Guid accountId, SnCloudFolder? parentFolder = null)
-    {
-        var normalizedPath = parentFolder != null 
-            ? $"{parentFolder.Path.TrimEnd('/')}/{name}/"
-            : $"/{name}/";
-
-        return new SnCloudFolder
-        {
-            Name = name,
-            Path = normalizedPath,
-            ParentFolderId = parentFolder?.Id,
-            AccountId = accountId
-        };
-    }
-
-    /// <summary>
-    /// Creates the root folder for an account
-    /// </summary>
-    public static SnCloudFolder CreateRoot(Guid accountId)
-    {
-        return new SnCloudFolder
-        {
-            Name = "Root",
-            Path = "/",
-            ParentFolderId = null,
-            AccountId = accountId
-        };
-    }
-}