#
# Copyright 2019 Google LLC
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#

$ErrorActionPreference = "stop"

$SourcesRoot = "${PSScriptRoot}\.."

$FilesWithoutCopyrightHeader = (Get-ChildItem $SourcesRoot -Recurse `
    | Where-Object {$_.Name.EndsWith(".cs")} `
    | Where-Object {-not $_.Name.EndsWith("AssemblyAttributes.cs")} `
    | Where-Object {-not $_.Name.EndsWith("AssemblyInfo.cs")} `
    | Where-Object {-not $_.Name.EndsWith(".g.cs")} `
    | Where-Object {$_.Name -ne "OAuthClient.cs"} `
    | Where-Object {$_.Name -ne "Settings.Designer.cs"} `
    | Where-Object {$_.Name -ne "Resources.Designer.cs"} `
    | Where-Object {-not $_.Name.StartsWith("TemporaryGeneratedFile")} `
    | Where-Object {-not [System.IO.File]::ReadAllText($_.FullName).Contains("Copyright")}  `
    | Select-Object -ExpandProperty FullName)
    
if ($FilesWithoutCopyrightHeader)
{
    Write-Host("One or more files lack a copyright header")
    $FilesWithoutCopyrightHeader
    exit 1
}