$Language = "python"
$LanguageDisplayName = "Python"
$PackageRepository = "PyPI"
$packagePattern = "*.tar.gz"
$MetadataUri = "https://raw.githubusercontent.com/Azure/azure-sdk/main/_data/releases/latest/python-packages.csv"
$GithubUri = "https://github.com/Azure/azure-sdk-for-python"
$PackageRepositoryUri = "https://pypi.org/project"

."$PSScriptRoot/docs/Docs-ToC.ps1"
."$PSScriptRoot/docs/Docs-Onboarding.ps1"

function Get-AllPackageInfoFromRepo ($serviceDirectory)
{
  $allPackageProps = @()
  $searchPath = "sdk"
  if ($serviceDirectory)
  {
    $searchPath = Join-Path sdk ${serviceDirectory}
  }

  $allPkgPropLines = $null
  try
  {
    Push-Location $RepoRoot
    $null = python -m pip install "./tools/azure-sdk-tools[build]" -q -I
    $allPkgPropLines = python (Join-path eng scripts get_package_properties.py) -s $searchPath
  }
  catch
  {
    # This is soft error and failure is expected for python metapackages
    LogError "Failed to get all package properties"
  }
  finally
  {
    Pop-Location
  }

  foreach ($line in $allPkgPropLines)
  {
    $pkgInfo = ($line -Split " ")
    $packageName = $pkgInfo[0]
    $packageVersion = $pkgInfo[1]
    $isNewSdk = ($pkgInfo[2] -eq "True")
    $pkgDirectoryPath = $pkgInfo[3]
    $serviceDirectoryName = Split-Path (Split-Path -Path $pkgDirectoryPath -Parent) -Leaf
    if ($packageName -match "mgmt")
    {
      $sdkType = "mgmt"
    }
    else
    {
      $sdkType = "client"
    }
    $pkgProp = [PackageProps]::new($packageName, $packageVersion, $pkgDirectoryPath, $serviceDirectoryName)
    $pkgProp.IsNewSdk = $isNewSdk
    $pkgProp.SdkType = $sdkType
    $pkgProp.ArtifactName = $packageName
    $allPackageProps += $pkgProp
  }
  return $allPackageProps
}

# Returns the pypi publish status of a package id and version.
function IsPythonPackageVersionPublished($pkgId, $pkgVersion)
{
  try
  {
    $existingVersion = (Invoke-RestMethod -MaximumRetryCount 3 -RetryIntervalSec 10 -Method "Get" -uri "https://pypi.org/pypi/$pkgId/$pkgVersion/json").info.version
    # if existingVersion exists, then it's already been published
    return $True
  }
  catch
  {
    $statusCode = $_.Exception.Response.StatusCode.value__
    $statusDescription = $_.Exception.Response.StatusDescription

    # if this is 404ing, then this pkg has never been published before
    if ($statusCode -eq 404)
    {
      return $False
    }
    Write-Host "PyPI Invocation failed:"
    Write-Host "StatusCode:" $statusCode
    Write-Host "StatusDescription:" $statusDescription
    exit(1)
  }
}

# Parse out package publishing information given a python sdist of tar.gz format.
function Get-python-PackageInfoFromPackageFile ($pkg, $workingDirectory)
{
  $pkg.Basename -match $SDIST_PACKAGE_REGEX | Out-Null

  $pkgId = $matches["package"]
  $pkgId = $pkgId.Replace("_","-")
  $docsReadMeName = $pkgId -replace "^azure-" , ""

  $pkgVersion = $matches["versionstring"]

  $workFolder = "$workingDirectory$($pkg.Basename)"
  $origFolder = Get-Location
  $releaseNotes = ""
  $readmeContent = ""

  New-Item -ItemType Directory -Force -Path $workFolder
  Write-Host "tar -zxvf $pkg -C $workFolder"
  tar -zxvf $pkg -C $workFolder

  $changeLogLoc = @(Get-ChildItem -Path $workFolder -Recurse -Include "CHANGELOG.md")[0]
  if ($changeLogLoc) {
    $releaseNotes = Get-ChangeLogEntryAsString -ChangeLogLocation $changeLogLoc -VersionString $pkgVersion
  }

  $readmeContentLoc = @(Get-ChildItem -Path $workFolder -Recurse -Include "README.md") | Select-Object -Last 1

  if ($readmeContentLoc) {
    $readmeContent = Get-Content -Raw $readmeContentLoc
  }

  Remove-Item $workFolder -Force  -Recurse -ErrorAction SilentlyContinue

  return New-Object PSObject -Property @{
    PackageId      = $pkgId
    PackageVersion = $pkgVersion
    ReleaseTag     = "$($pkgId)_$($pkgVersion)"
    Deployable     = $forceCreate -or !(IsPythonPackageVersionPublished -pkgId $pkgId -pkgVersion $pkgVersion)
    ReleaseNotes   = $releaseNotes
    ReadmeContent  = $readmeContent
    DocsReadMeName = $docsReadMeName
  }
}

# This is the GetDocsMsDevLanguageSpecificPackageInfoFn implementation
function Get-python-DocsMsDevLanguageSpecificPackageInfo($packageInfo, $packageSourceOverride) {
  # If the default namespace isn't in the package info then it needs to be added
  # Can't check if (!$packageInfo.Namespaces) in strict mode because Namespaces won't exist
  # at all.
  if (!($packageInfo | Get-Member Namespaces)) {
    # If the Version is INGORE that means it's a source install and those
    # ones need to be done by hand
    if ($packageInfo.Version -ine "IGNORE") {
      $version = $packageInfo.Version
      # If the dev version is set, use that
      if ($packageInfo.DevVersion) {
        $version = $packageInfo.DevVersion
      }
      $namespaces = Get-NamespacesFromWhlFile $packageInfo.Name $version $packageSourceOverride
      if ($namespaces.Count -gt 0) {
        $packageInfo | Add-Member -Type NoteProperty -Name "Namespaces" -Value $namespaces
      } else {
        LogWarning "Unable to find namespaces for $($packageInfo.Name):$version, using the package name."
        $tempNamespaces = @()
        $tempNamespaces += $packageInfo.Name
        $packageInfo | Add-Member -Type NoteProperty -Name "Namespaces" -Value $tempNamespaces
      }
    }
  }
  return $packageInfo
}

# Stage and Upload Docs to blob Storage
function Publish-python-GithubIODocs ($DocLocation, $PublicArtifactLocation)
{
  $PublishedDocs = Get-ChildItem "$DocLocation" | Where-Object -FilterScript {$_.Name.EndsWith(".tar.gz")}

  foreach ($Item in $PublishedDocs)
  {
    $PkgName = $Item.BaseName.Replace(".tar", "")
    $ZippedDocumentationPath = Join-Path -Path $DocLocation -ChildPath $Item.Name
    $UnzippedDocumentationPath = Join-Path -Path $DocLocation -ChildPath $PkgName
    $VersionFileLocation = Join-Path -Path $UnzippedDocumentationPath -ChildPath "version.txt"

    if (!(Test-Path $UnzippedDocumentationPath)) {
      New-Item -Path $UnzippedDocumentationPath -ItemType Directory
    }

    Write-Host "tar -zxvf $ZippedDocumentationPath -C $UnzippedDocumentationPath"
    tar -zxvf $ZippedDocumentationPath -C $UnzippedDocumentationPath

    if ($LASTEXITCODE -ne 0) {
      Write-Error "tar failed with exit code $LASTEXITCODE."
      exit $LASTEXITCODE
    }

    $Version = $(Get-Content $VersionFileLocation).Trim()

    Write-Host "Discovered Package Name: $PkgName"
    Write-Host "Discovered Package Version: $Version"
    Write-Host "Directory for Upload: $UnzippedDocumentationPath"
    $releaseTag = RetrieveReleaseTag $PublicArtifactLocation
    Upload-Blobs -DocDir $UnzippedDocumentationPath -PkgName $PkgName -DocVersion $Version -ReleaseTag $releaseTag
  }
}

function Get-python-GithubIoDocIndex()
{
  # Update the main.js and docfx.json language content
  UpdateDocIndexFiles -appTitleLang Python
  # Fetch out all package metadata from csv file.
  $metadata = Get-CSVMetadata -MetadataUri $MetadataUri
  # Get the artifacts name from blob storage
  $artifacts = Get-BlobStorage-Artifacts `
    -blobDirectoryRegex "^python/(.*)/$" `
    -blobArtifactsReplacement '$1' `
    -storageAccountName 'azuresdkdocs' `
    -storageContainerName '$web' `
    -storagePrefix 'python/'
  # Build up the artifact to service name mapping for GithubIo toc.
  $tocContent = Get-TocMapping -metadata $metadata -artifacts $artifacts
  # Generate yml/md toc files and build site.
  GenerateDocfxTocContent -tocContent $tocContent -lang "Python" -campaignId "UA-62780441-36"
}

function ValidatePackage
{
  Param(
    [Parameter(Mandatory=$true)]
    [string]$packageName,
    [Parameter(Mandatory=$true)]
    [string]$packageVersion,
    [Parameter(Mandatory=$false)]
    [string]$PackageSourceOverride,
    [Parameter(Mandatory=$false)]
    [string]$DocValidationImageId
  )
  $installValidationFolder = Join-Path ([System.IO.Path]::GetTempPath()) "validation"
  if (!(Test-Path $installValidationFolder)) {
    New-Item -ItemType Directory -Force -Path $installValidationFolder | Out-Null
  }
  # Add more validation by replicating as much of the docs CI process as
  # possible
  # https://github.com/Azure/azure-sdk-for-python/issues/20109
  $result = $true
  if (!$DocValidationImageId) {
    Write-Host "Validating using pip command directly on $packageName."
    $result = FallbackValidation -packageName "$packageName" -packageVersion "$packageVersion" -workingDirectory $installValidationFolder -PackageSourceOverride $PackageSourceOverride
  } else {
    Write-Host "Validating using $DocValidationImageId on $packageName."
    $result = DockerValidation -packageName "$packageName" -packageVersion "$packageVersion" `
        -PackageSourceOverride $PackageSourceOverride -DocValidationImageId $DocValidationImageId -workingDirectory $installValidationFolder
  }

  return $result
}
function DockerValidation{
  Param(
    [Parameter(Mandatory=$true)]
    [string]$packageName,
    [Parameter(Mandatory=$true)]
    [string]$packageVersion,
    [Parameter(Mandatory=$false)]
    [string]$PackageSourceOverride,
    [Parameter(Mandatory=$false)]
    [string]$DocValidationImageId,
    [Parameter(Mandatory=$false)]
    [string]$workingDirectory
  )
  if ($PackageSourceOverride) {
    Write-Host "docker run -v ${workingDirectory}:/workdir/out -e TARGET_PACKAGE=$packageName -e TARGET_VERSION=$packageVersion -e EXTRA_INDEX_URL=$PackageSourceOverride -t $DocValidationImageId"
    $commandLine = docker run -v "${workingDirectory}:/workdir/out" -e TARGET_PACKAGE=$packageName -e TARGET_VERSION=$packageVersion `
       -e EXTRA_INDEX_URL=$PackageSourceOverride -t $DocValidationImageId 2>&1
  }
  else {
    Write-Host "docker run -v ${workingDirectory}:/workdir/out -e TARGET_PACKAGE=$packageName -e TARGET_VERSION=$packageVersion -t $DocValidationImageId"
    $commandLine = docker run -v "${workingDirectory}:/workdir/out" `
      -e TARGET_PACKAGE=$packageName -e TARGET_VERSION=$packageVersion -t $DocValidationImageId 2>&1
  }
  # The docker exit codes: https://docs.docker.com/engine/reference/run/#exit-status
  # If the docker failed because of docker itself instead of the application,
  # we should skip the validation and keep the packages.

  if ($LASTEXITCODE -eq 125 -Or $LASTEXITCODE -eq 126 -Or $LASTEXITCODE -eq 127) {
    $commandLine | ForEach-Object { Write-Debug $_ }
    LogWarning "The `docker` command does not work with exit code $LASTEXITCODE. Fall back to npm install $packageName directly."
    FallbackValidation -packageName "$packageName" -packageVersion "$packageVersion" -workingDirectory $workingDirectory -PackageSourceOverride $PackageSourceOverride
  }
  elseif ($LASTEXITCODE -ne 0) {
    $commandLine | ForEach-Object { Write-Debug $_ }
    LogWarning "Package $packageName ref docs validation failed."
    return $false
  }
  return $true
}

function FallbackValidation
{
  Param(
    [Parameter(Mandatory=$true)]
    [string]$packageName,
    [Parameter(Mandatory=$true)]
    [string]$packageVersion,
    [Parameter(Mandatory=$true)]
    [string]$workingDirectory,
    [Parameter(Mandatory=$false)]
    [string]$PackageSourceOverride
  )
  $installTargetFolder = Join-Path $workingDirectory $packageName
  New-Item -ItemType Directory -Force -Path $installTargetFolder | Out-Null
  $packageExpression = "$packageName$packageVersion"
  try {
    $pipInstallOutput = ""
    if ($PackageSourceOverride) {
      Write-Host "python -m pip install $packageExpression --no-cache-dir --target $installTargetFolder --extra-index-url=$PackageSourceOverride"
      $pipInstallOutput = python -m pip `
        install `
        $packageExpression `
        --no-cache-dir `
        --target $installTargetFolder `
        --extra-index-url=$PackageSourceOverride 2>&1
    }
    else {
      Write-Host "python -m pip install $packageExpression --no-cache-dir --target $installTargetFolder"
      $pipInstallOutput = python -m pip `
        install `
        $packageExpression `
        --no-cache-dir `
        --target $installTargetFolder 2>&1
    }
    if ($LASTEXITCODE -ne 0) {
      LogWarning "python -m pip install failed for $packageExpression"
      Write-Host $pipInstallOutput
      return $false
    }
  } catch {
    LogWarning "python -m pip install failed for $packageExpression with exception"
    LogWarning $_.Exception
    LogWarning $_.Exception.StackTrace
    return $false
  }

  return $true
}

$PackageExclusions = @{
  'azure-mgmt-videoanalyzer' = 'Unsupported doc directives: https://github.com/Azure/azure-sdk-for-python/issues/21563';
  'azure-mgmt-quota' = 'Unsupported doc directives: https://github.com/Azure/azure-sdk-for-python/issues/21366';
  'azure-mgmt-apimanagement' = 'Unsupported doc directives https://github.com/Azure/azure-sdk-for-python/issues/18084';
  'azure-mgmt-reservations' = 'Unsupported doc directives https://github.com/Azure/azure-sdk-for-python/issues/18077';
  'azure-mgmt-signalr' = 'Unsupported doc directives https://github.com/Azure/azure-sdk-for-python/issues/18085';
  'azure-mgmt-mixedreality' = 'Missing version info https://github.com/Azure/azure-sdk-for-python/issues/18457';
  'azure-mgmt-network' = 'Manual process used to build';
  'azureml-fsspec' = 'Build issues related to Python requirements: https://github.com/Azure/azure-sdk-for-python/issues/30565';
  'mltable' = 'Build issues related to Python requirements: https://github.com/Azure/azure-sdk-for-python/issues/30565';

  'azure-mgmt-compute' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-mgmt-consumption' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-mgmt-notificationhubs' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-servicebus' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-mgmt-web' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-mgmt-netapp' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-synapse-artifacts' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-mgmt-streamanalytics' = 'Latest package requires Python >= 3.7 and this breaks docs build. https://github.com/Azure/azure-sdk-for-python/issues/22492';
  'azure-ai-ml' = 'Docs CI build issues https://github.com/Azure/azure-sdk-for-python/issues/30774';

  'azure-keyvault' = 'Metapackages should not be documented';
}

function Update-python-DocsMsPackages($DocsRepoLocation, $DocsMetadata, $PackageSourceOverride, $DocValidationImageId) {
  Write-Host "Excluded packages:"
  foreach ($excludedPackage in $PackageExclusions.Keys) {
    Write-Host "  $excludedPackage - $($PackageExclusions[$excludedPackage])"
  }

  $FilteredMetadata = $DocsMetadata.Where({ !($PackageExclusions.ContainsKey($_.Package)) })

  UpdateDocsMsPackages `
    (Join-Path $DocsRepoLocation 'ci-configs/packages-preview.json') `
    'preview' `
    $FilteredMetadata `
    $PackageSourceOverride `
    $DocValidationImageId

  UpdateDocsMsPackages `
    (Join-Path $DocsRepoLocation 'ci-configs/packages-latest.json') `
    'latest' `
    $FilteredMetadata `
    $PackageSourceOverride `
    $DocValidationImageId
}

function UpdateDocsMsPackages($DocConfigFile, $Mode, $DocsMetadata, $PackageSourceOverride, $DocValidationImageId) {
  Write-Host "Updating configuration: $DocConfigFile with mode: $Mode"
  $packageConfig = Get-Content $DocConfigFile -Raw | ConvertFrom-Json

  $outputPackages = @()
  foreach ($package in $packageConfig.packages) {
    $packageName = $package.package_info.name
    if (!$packageName) {
      Write-Host "Keeping package with no name: $($package.package_info)"
      $outputPackages += $package
      continue
    }

    if ($package.package_info.install_type -ne 'pypi') {
      Write-Host "Keeping package with install_type not 'pypi': $($package.package_info.name)"
      $outputPackages += $package
      continue
    }

    if ($package.package_info.name.EndsWith("-nspkg")) {
      Write-Host "Skipping $($package.package_info.name) because it's a namespace package."
      continue
    }

    # Do not filter by GA/Preview status because we want differentiate between
    # tracked and non-tracked packages
    $matchingPublishedPackageArray = $DocsMetadata.Where( { $_.Package -eq $packageName })

    # If this package does not match any published packages keep it in the list.
    # This handles packages which are not tracked in metadata but still need to
    # be built in Docs CI.
    if ($matchingPublishedPackageArray.Count -eq 0) {
      Write-Host "Keep non-tracked package: $packageName"
      $outputPackages += $package
      continue
    }

    if ($matchingPublishedPackageArray.Count -gt 1) {
      LogWarning "Found more than one matching published package in metadata for $packageName; only updating first entry"
    }
    $matchingPublishedPackage = $matchingPublishedPackageArray[0]

    if ($Mode -eq 'preview' -and !$matchingPublishedPackage.VersionPreview.Trim()) {
      # If we are in preview mode and the package does not have a superseding
      # preview version, remove the package from the list.
      Write-Host "Remove superseded preview package: $packageName"
      continue
    }

    if ($Mode -eq 'latest' -and !$matchingPublishedPackage.VersionGA.Trim()) {
      LogWarning "Metadata is missing GA version for GA package $packageName. Keeping existing package."
      $outputPackages += $package
      continue
    }

    $packageVersion = "==$($matchingPublishedPackage.VersionGA)"
    if ($Mode -eq 'preview') {
      if (!$matchingPublishedPackage.VersionPreview.Trim()) {
        LogWarning "Metadata is missing preview version for preview package $packageName. Keeping existing package."
        $outputPackages += $package
        continue
      }
      $packageVersion = "==$($matchingPublishedPackage.VersionPreview)"
    }

    # If upgrading the package, run basic sanity checks against the package
    if ($package.package_info.version -ne $packageVersion) {
      Write-Host "New version detected for $packageName ($packageVersion)"
      if (!(ValidatePackage -packageName $packageName -packageVersion $packageVersion -PackageSourceOverride $PackageSourceOverride -DocValidationImageId $DocValidationImageId)) {
        LogWarning "Package is not valid: $packageName. Keeping old version."
        $outputPackages += $package
        continue
      }

      $package.package_info = Add-Member `
        -InputObject $package.package_info `
        -MemberType NoteProperty `
        -Name 'version' `
        -Value $packageVersion `
        -PassThru `
        -Force
      if ($PackageSourceOverride) {
        $package.package_info = Add-Member `
          -InputObject $package.package_info `
          -MemberType NoteProperty `
          -Name 'extra_index_url' `
          -Value $PackageSourceOverride `
          -PassThru `
          -Force
      }
    }

    Write-Host "Keeping tracked package: $packageName."
    $outputPackages += $package
  }

  $outputPackagesHash = @{}
  foreach ($package in $outputPackages) {
    # In some cases there is no $package.package_info.name, only hash if the
    # name is set.
    if ($package.package_info.name) {
      $outputPackagesHash[$package.package_info.name] = $true
    }
  }

  $remainingPackages = @()
  if ($Mode -eq 'preview') {
    $remainingPackages = $DocsMetadata.Where({
      $_.VersionPreview.Trim() `
      -and !$outputPackagesHash.ContainsKey($_.Package) `
      -and !$_.Package.EndsWith("-nspkg")
    })
  } else {
    $remainingPackages = $DocsMetadata.Where({
      $_.VersionGA.Trim() `
      -and !$outputPackagesHash.ContainsKey($_.Package) `
      -and !$_.Package.EndsWith("-nspkg")
    })
  }

  # Add packages that exist in the metadata but are not onboarded in docs config
  foreach ($package in $remainingPackages) {
    $packageName = $package.Package
    $packageVersion = "==$($package.VersionGA)"
    if ($Mode -eq 'preview') {
      $packageVersion = "==$($package.VersionPreview)"
    }
    if (!(ValidatePackage -packageName $packageName -packageVersion $packageVersion -PackageSourceOverride $PackageSourceOverride -DocValidationImageId $DocValidationImageId)) {
      LogWarning "Package is not valid: $packageName. Cannot onboard."
      continue
    }

    Write-Host "Add new package from metadata: $packageName"
    if ($PackageSourceOverride) {
      $package = [ordered]@{
        package_info = [ordered]@{
          name = $packageName;
          install_type = 'pypi';
          prefer_source_distribution = 'true';
          version = $packageVersion;
          extra_index_url = $PackageSourceOverride
        };
        exclude_path = @("test*","example*","sample*","doc*");
      }
    } else {
      $package = [ordered]@{
          package_info = [ordered]@{
            name = $packageName;
            install_type = 'pypi';
            prefer_source_distribution = 'true';
            version = $packageVersion;
          };
          exclude_path = @("test*","example*","sample*","doc*");
      }
    }
    $outputPackages += $package
  }

  $packageConfig.packages = $outputPackages
  $packageConfig | ConvertTo-Json -Depth 100 | Set-Content $DocConfigFile
  Write-Host "Onboarding configuration written to: $DocConfigFile"
}

# function is used to auto generate API View
function Find-python-Artifacts-For-Apireview($artifactDir, $artifactName)
{
  # Find wheel file in given artifact directory
  # Make sure to pick only package with given artifact name
  # Skip auto API review creation for management packages
  if ($artifactName -match "mgmt")
  {
    Write-Host "Skipping automatic API review for management artifact $($artifactName)"
    return $null
  }

  $packageName = $artifactName.Replace("_","-")
  $whlDirectory = (Join-Path -Path $artifactDir -ChildPath $packageName)

  Write-Host "Searching for $($artifactName) wheel in artifact path $($whlDirectory)"
  $files = @(Get-ChildItem $whlDirectory | ? {$_.Name.EndsWith(".whl")})
  if (!$files)
  {
    Write-Host "$whlDirectory does not have wheel package for $($artifactName)"
    return $null
  }
  elseif($files.Count -ne 1)
  {
    Write-Host "$whlDirectory should contain only one published wheel package for $($artifactName)"
    Write-Host "No of Packages $($files.Count)"
    return $null
  }

  # Python requires pregenerated token file in addition to wheel to generate API review.
  # Make sure that token file exists in same path as wheel file.
  $tokenFile = Join-Path -Path $whlDirectory -ChildPath "${packageName}_${Language}.json"
  if (!(Test-Path $tokenFile))
  {
    Write-Host "API review token file for $($tokenFile) does not exist in path $($whlDirectory). Skipping API review for $packageName"
    return $null
  }
  else
  {
    Write-Host "Found API review token file for $($tokenFile)"
  }

  $packages = @{
    $files[0].Name = $files[0].FullName
  }
  return $packages
}

function SetPackageVersion ($PackageName, $Version, $ServiceDirectory, $ReleaseDate, $ReplaceLatestEntryTitle=$True)
{
  if($null -eq $ReleaseDate)
  {
    $ReleaseDate = Get-Date -Format "yyyy-MM-dd"
  }
  python -m pip install "$RepoRoot/tools/azure-sdk-tools[build]" -q -I
  sdk_set_version --package-name $PackageName --new-version $Version `
  --service $ServiceDirectory --release-date $ReleaseDate --replace-latest-entry-title $ReplaceLatestEntryTitle
}

function GetExistingPackageVersions ($PackageName, $GroupId=$null)
{
  try
  {
    $existingVersion = Invoke-RestMethod -Method GET -Uri "https://pypi.python.org/pypi/${PackageName}/json"
    return ($existingVersion.releases | Get-Member -MemberType NoteProperty).Name
  }
  catch
  {
    if ($_.Exception.Response.StatusCode -ne 404)
    {
      LogError "Failed to retrieve package versions for ${PackageName}. $($_.Exception.Message)"
    }
    return $null
  }
}

# Defined in common.ps1 as:
# GetDocsMsMetadataForPackageFn = Get-${Language}-DocsMsMetadataForPackage
function Get-python-DocsMsMetadataForPackage($PackageInfo) {
  $readmeName = $PackageInfo.Name.ToLower()
  Write-Host "Docs.ms Readme name: $($readmeName)"

  # Readme names (which are used in the URL) should not include redundant terms
  # when viewed in URL form. For example:
  # https://docs.microsoft.com/en-us/dotnet/api/overview/azure/storage-blobs-readme
  # Note how the end of the URL doesn't look like:
  # ".../azure/azure-storage-blobs-readme"

  # This logic eliminates a preceeding "azure." in the readme filename.
  # "azure-storage-blobs" -> "storage-blobs"
  if ($readmeName.StartsWith('azure-')) {
    $readmeName = $readmeName.Substring(6)
  }

  New-Object PSObject -Property @{
    DocsMsReadMeName = $readmeName
    LatestReadMeLocation  = 'docs-ref-services/latest'
    PreviewReadMeLocation = 'docs-ref-services/preview'
    LegacyReadMeLocation  = 'docs-ref-services/legacy'
    Suffix = ''
  }
}

function Import-Dev-Cert-python
{
  Write-Host "Python Trust Methodology"

  $pathToScript = Resolve-Path (Join-Path -Path $PSScriptRoot -ChildPath "../../scripts/devops_tasks/trust_proxy_cert.py")
  python -m pip install requests
  python $pathToScript
}

# Defined in common.ps1 as:
# $ValidateDocsMsPackagesFn = "Validate-${Language}-DocMsPackages"
function Validate-Python-DocMsPackages ($PackageInfo, $PackageInfos, $PackageSourceOverride, $DocValidationImageId)
{
  # While eng/common/scripts/Update-DocsMsMetadata.ps1 is still passing a single packageInfo, process as a batch
  if (!$PackageInfos) {
    $PackageInfos =  @($PackageInfo)
  }

  $allSucceeded = $true
  foreach ($item in $PackageInfos) {
    # If the Version is IGNORE that means it's a source install and those aren't run through ValidatePackage
    if ($item.Version -eq 'IGNORE') {
      continue
    }

    $result = ValidatePackage `
      -packageName $item.Name `
      -packageVersion "==$($item.Version)" `
      -PackageSourceOverride $PackageSourceOverride `
      -DocValidationImageId $DocValidationImageId

    if (!$result) {
      $allSucceeded = $false
    }
  }

  return $allSucceeded
}

function Get-python-EmitterName() {
  return "@azure-tools/typespec-python"
}

function Get-python-EmitterAdditionalOptions([string]$projectDirectory) {
  return "--option @azure-tools/typespec-python.emitter-output-dir=$projectDirectory/"
}

function Get-python-DirectoriesForGeneration () {
  return Get-ChildItem "$RepoRoot/sdk" -Directory
  | Get-ChildItem -Directory
  | Where-Object { $_ -notmatch "-mgmt-" }
  | Where-Object { (Test-Path "$_/tsp-location.yaml") }
  # TODO: Reenable swagger generation when tox generate supports arbitrary generator versions
  # -or (Test-Path "$_/swagger/README.md")
}

function Update-python-GeneratedSdks([string]$PackageDirectoriesFile) {
  $packageDirectories = Get-Content $PackageDirectoriesFile | ConvertFrom-Json

  $directoriesWithErrors = @()

  foreach ($directory in $packageDirectories) {
    Push-Location $RepoRoot/sdk/$directory
    try {
      Write-Host "`n`n======================================================================"
      Write-Host "Generating project under directory 'sdk/$directory'" -ForegroundColor Yellow
      Write-Host "======================================================================`n"

      $toxConfigPath = Resolve-Path "$RepoRoot/eng/tox/tox.ini"
      Invoke-LoggedCommand "tox run -e generate -c `"$toxConfigPath`" --root ."
    }
    catch {
      Write-Host "##[error]Error generating project under directory $directory"
      Write-Host $_.Exception.Message
      $directoriesWithErrors += $directory
    }
    finally {
      Pop-Location
    }
  }

  if($directoriesWithErrors.Count -gt 0) {
    Write-Host "##[error]Generation errors found in $($directoriesWithErrors.Count) directories:"

    foreach ($directory in $directoriesWithErrors) {
      Write-Host "  $directory"
    }

    exit 1
  }
}