Enhance Get-GiteaChildItem function with recursion and depth parameters for improved directory listing

PS-GiteaUtilities/PS-GiteaUtilities.psm1

@@ -423,6 +423,12 @@ Function Get-GiteaChildItem {
     .PARAMETER token
     A personal access token for the Gitea server.
     
+    .PARAMETER Recurse
+    Recursively lists items in all subdirectories.
+
+    .PARAMETER Depth
+    Specifies the number of subdirectory levels to include in the recursion. Default is unlimited if Recurse is specified.
+
     .EXAMPLE
     # List items in the root directory of a repository
     Get-GiteaChildItem -repoOwner "owner" -repoName "repo" -Path "" -token "your_token"
@@ -432,6 +438,14 @@ Function Get-GiteaChildItem {
     Get-GiteaChildItem -repoOwner "owner" -repoName "repo" -Path "docs" -token "your_token" | 
         Where-Object { $_.type -eq "file" } | 
         Get-GiteaFileContent -token "your_token" -decode
+        
+    .EXAMPLE
+    # Recursively list all items in a repository
+    Get-GiteaChildItem -repoOwner "owner" -repoName "repo" -Path "src" -Recurse -token "your_token"
+    
+    .EXAMPLE
+    # List items with a maximum depth of 2 subdirectories
+    Get-GiteaChildItem -repoOwner "owner" -repoName "repo" -Path "src" -Recurse -Depth 2 -token "your_token"
     #>
 
     [CmdletBinding()]
@@ -446,13 +460,13 @@ Function Get-GiteaChildItem {
         [string[]]$Path,
         [Parameter(ValueFromPipelineByPropertyName)]
         [string]$branch = "main",
-        [string]$token
+        [string]$token,
+        [switch]$Recurse,
+        [int]$Depth
     )
 
     begin {
         # Initialize results array
-        # This is used to store the results of the API calls later
-        # It is initialized here to avoid re-initializing it in the process block
         $results = @()
 
         # Use configuration if parameters aren't provided
@@ -497,20 +511,29 @@ Function Get-GiteaChildItem {
 
         # Load the GIT LFS configuration if needed
         $lfsExtensions = Get-GiteaLFSConfiguration -giteaURL $giteaURL -repoOwner $repoOwner -repoName $repoName -token $token
+
+        # Initialize a queue for directories to process when using recursion
+        $directoryQueue = [System.Collections.Queue]::new()
     }
 
     process {
         $paths = $path
         foreach ($path in $paths) {
             Write-Verbose "Processing path: $path"
-            $encodedPath = [System.Uri]::EscapeDataString($path)
+            # Normalize the path format - replace backslashes with forward slashes and trim trailing slashes
+            $normalizedPath = $path -replace '\\', '/' -replace '/$', ''
+            $encodedPath = [System.Uri]::EscapeDataString($normalizedPath)
+            Write-Verbose "Normalized path: $normalizedPath"
             Write-Verbose "Encoded path: $encodedPath"
             $url = "$giteaURL"
             $url += "/api/v1/repos"
             $url += "/$repoOwner"
             $url += "/$repoName"
             $url += "/contents"
+            # Only add the path component if it's not empty
+            if (-not [string]::IsNullOrWhiteSpace($normalizedPath)) {
                 $url += "/$encodedPath"
+            }
             $url += "?ref=$branch"
             Write-Verbose "URL: $url"
 
@@ -534,31 +557,130 @@ Function Get-GiteaChildItem {
                         $item.download_url = "$giteaURL/api/v1/repos/$repoOwner/$repoName/media/$($item.path)"
                     }
 
-                    $results += [PSCustomObject]@{
+                    $itemObj = [PSCustomObject]@{
-                        # Properties for direct pipeline binding with other functions in this module
+                        filePath = $item.path
-                        filePath = $item.path            # Maps to -filePath parameter
+                        Path = $item.path
-                        Path = $item.path                # Also include original name (alias)
+                        repoOwner = $repoOwner
-                        repoOwner = $repoOwner           # Maps to -repoOwner parameter
+                        repoName = $repoName
-                        repoName = $repoName             # Maps to -repoName parameter
+                        giteaURL = $giteaURL
-                        giteaURL = $giteaURL             # Maps to -giteaURL parameter
+                        downloadURL = $item.download_url
-                        downloadURL = $item.download_url # Maps to -downloadURL parameter
+                        branch = $branch
-                        branch = $branch                 # Maps to -branch parameter
+                        type = $item.type
-                        
-                        # Additional useful properties
-                        type = $item.type                # 'file' or 'dir'
                         name = $item.name
                         size = $item.size
                         sha = $item.sha
                         Success = $true
                         Error = $null
+                        Level = 0
+                    }
+                    
+                    $results += $itemObj
+                    
+                    # If the item is a directory and we're recursing, add it to the queue
+                    if ($Recurse -and $item.type -eq 'dir') {
+                        $directoryQueue.Enqueue(@{
+                            Path = $item.path
+                            Level = 1
+                        })
+                    }
+                }
+                
+                # Process the directory queue if recursion is enabled
+                if ($Recurse) {
+                    while ($directoryQueue.Count -gt 0) {
+                        $currentDir = $directoryQueue.Dequeue()
+                        $currentPath = $currentDir.Path
+                        $currentLevel = $currentDir.Level
+                        
+                        # Check depth limit if specified
+                        if ($PSBoundParameters.ContainsKey('Depth') -and $currentLevel -gt $Depth) {
+                            continue
+                        }
+                        
+                        Write-Verbose "Recursing into: $currentPath (Level: $currentLevel)"
+                        
+                        # Normalize the path format for consistent handling
+                        $normalizedSubPath = $currentPath -replace '\\', '/' -replace '/$', ''
+                        $encodedSubPath = [System.Uri]::EscapeDataString($normalizedSubPath)
+                        
+                        Write-Verbose "Normalized sub path: $normalizedSubPath"
+                        Write-Verbose "Encoded sub path: $encodedSubPath"
+                        
+                        # Fix the URL construction for subdirectories
+                        $subUrl = "$giteaURL/api/v1/repos/$repoOwner/$repoName/contents/$encodedSubPath"
+                        # Add the branch reference separately to avoid issues
+                        $subUrl += "?ref=$branch"
+                        Write-Verbose "Sub URL: $subUrl"
+                        
+                        try {
+                            $subResponse = Invoke-RestMethod -Uri $subUrl -Method Get -Headers $headers -ErrorAction Stop
+                            $subItems = if ($subResponse -is [array]) { $subResponse } else { @($subResponse) }
+                            
+                            foreach ($subItem in $subItems) {
+                                # Check if the name ends with any of the LFS extensions
+                                $isLFS = $false
+                                foreach ($ext in $lfsExtensions) {
+                                    if ($subItem.name.EndsWith($ext, [System.StringComparison]::InvariantCultureIgnoreCase)) {
+                                        $isLFS = $true
+                                        break
+                                    }
+                                }
+                                if ($isLFS) {
+                                    $subItem.type = "lfs"
+                                    $subItem.download_url = "$giteaURL/api/v1/repos/$repoOwner/$repoName/media/$($subItem.path)"
+                                }
+                                
+                                $subItemObj = [PSCustomObject]@{
+                                    filePath = $subItem.path
+                                    Path = $subItem.path
+                                    repoOwner = $repoOwner
+                                    repoName = $repoName
+                                    giteaURL = $giteaURL
+                                    downloadURL = $subItem.download_url
+                                    branch = $branch
+                                    type = $subItem.type
+                                    name = $subItem.name
+                                    size = $subItem.size
+                                    sha = $subItem.sha
+                                    Success = $true
+                                    Error = $null
+                                    Level = $currentLevel
+                                }
+                                
+                                $results += $subItemObj
+                                
+                                # If the subitem is a directory, add it to the queue for further processing
+                                if ($subItem.type -eq 'dir') {
+                                    $nextLevel = $currentLevel + 1
+                                    # Only add to queue if we haven't hit our depth limit
+                                    if (-not $PSBoundParameters.ContainsKey('Depth') -or $nextLevel -le $Depth) {
+                                        $directoryQueue.Enqueue(@{
+                                            Path = $subItem.path
+                                            Level = $nextLevel
+                                        })
+                                    }
                                 }
                             }
                         }
                         catch {
-                Write-Error "Failed to retrieve '$path' from Gitea: $_"
+                            $errorDetails = if ($_.ErrorDetails) { 
+                                try { $_.ErrorDetails.Message | ConvertFrom-Json -ErrorAction SilentlyContinue } catch { $_.ErrorDetails.Message }
+                            } else { $null }
+                            
+                            Write-Error "Failed to recursively retrieve path '$normalizedSubPath' from Gitea: $($_.Exception.Message)`n$($errorDetails | ConvertTo-Json -Depth 1 -Compress)"
+                        }
+                    }
+                }
+            }
+            catch {
+                $errorDetails = if ($_.ErrorDetails) { 
+                    try { $_.ErrorDetails.Message | ConvertFrom-Json -ErrorAction SilentlyContinue } catch { $_.ErrorDetails.Message }
+                } else { $null }
+                
+                Write-Error "Failed to retrieve '$normalizedPath' from Gitea: $($_.Exception.Message)`n$($errorDetails | ConvertTo-Json -Depth 1 -Compress)"
                 $results += [PSCustomObject]@{
-                    filePath = $path
+                    filePath = $normalizedPath
-                    Path = $path
+                    Path = $normalizedPath
                     repoOwner = $repoOwner
                     repoName = $repoName
                     giteaURL = $giteaURL
@@ -570,6 +692,7 @@ Function Get-GiteaChildItem {
                     downloadURL = $null
                     Success = $false
                     Error = $_.Exception.Message
+                    Level = 0
                 }
             }
         }