#! /usr/bin/env bash
# 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.

# The top half of this script runs in Bash and the bottom half in Powershell
# Some lines at the end or the beginning can run in both shells, but syntax
# common to both is limited.
# --------------------------------------------------------------------------
echo @'
' > /dev/null
#vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# Bash Start -----------------------------------------------------------

OS="$(uname -s)"
ARCH="$(uname -m)"
CMD="ops"

case "$OS-$ARCH" in
(Linux-x86_64)
   SUFFIX="_linux_amd64"
   EXT=".tar.gz"
;;
(Linux-aarch64)
   SUFFIX="_linux_arm64"
   EXT=".tar.gz"
;;
(Linux-arm64)
   SUFFIX="_linux_arm64"
   EXT=".tar.gz"
;;
(Darwin-x86_64)
   SUFFIX="_darwin_amd64"
   EXT=".tar.gz"
;;
(Darwin-arm64)
  SUFFIX="_darwin_arm64"
  EXT=".tar.gz"
;;
(MINGW64_NT-*)
   SUFFIX="_windows_amd64" ;
   EXT=".zip"
   CMD="ops.exe"
;;
(*)
   echo "unknown system - exiting"
   exit 1
;;
esac

OPSROOT="https://raw.githubusercontent.com/apache/openserverless-task/0.9.0/opsroot.json"
if test -z "$VERSION"
then VERSION="$(curl -sL $OPSROOT | sed -n 's/^.*"version": "\([^"]*\)",/\1/p')"
fi
if test -z "$VERSION"
then echo "cannot determine version from $OPSROOT - exiting"
     exit 1
fi
FILE="openserverless-cli_${VERSION}$SUFFIX$EXT"
# the version can contain a '+' which must be percent-encoded in the url path
TAG="v${VERSION//+/%2B}"
URL="https://github.com/apache/openserverless-cli/releases/download/$TAG/$FILE"

mkdir -p ~/.local/bin
if ! curl -fsSL "$URL" -o "/tmp/$FILE"
then echo "cannot download ops from:"
     echo "$URL"
     exit 1
fi

DIR="openserverless-cli_${VERSION}$SUFFIX"
if test "$EXT" = ".zip"
then
   unzip -o -j -d ~/.local/bin "/tmp/$FILE" "$DIR/$CMD"
else
   tar xzvf "/tmp/$FILE" -C ~/.local/bin --strip-components=1 "$DIR/$CMD"
fi
chmod +x ~/.local/bin/"$CMD"
rm -f "/tmp/$FILE"


if ! test -e  ~/.local/bin/"$CMD"
then echo "cannot install ops - download and unpack it in a folder in the path from here:"
     echo "$URL"
     exit 1
fi

case ":$PATH:" in
*":$HOME/.local/bin:"*)
   : # already in PATH
;;
*)
   echo "$HOME/.local/bin is not in the path - adding it"
   LINE='export PATH="$HOME/.local/bin:$PATH"'
   for RC in "$HOME/.bashrc" "$HOME/.zshrc"
   do
      if ! test -e "$RC" || ! grep -qF "$LINE" "$RC"
      then echo "$LINE" >>"$RC"
      fi
   done
   echo please restart your terminal to find ops in your path
;;
esac

exit 0

# Above this line is Bash Script -------------------------------------------
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
echo > /dev/null <<"out-null" ###
'@ | out-null
#vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# Below this line is Powershell Script -------------------------------------

$InWindows = [System.Environment]::OSVersion.Platform -eq 'Win32NT'

if (-not $InWindows) {
    Write-Host "This script is only for Windows - exiting"
    exit 1
}

$SUFFIX = "_windows_amd64"
$EXT = ".zip"
$CMD = "ops.exe"

$OPSROOT = "https://raw.githubusercontent.com/apache/openserverless-task/0.9.0/opsroot.json"
if (-not $VERSION) {
    $VERSION = (Invoke-RestMethod -Uri $OPSROOT).version
}
if (-not $VERSION) {
    Write-Host "Cannot determine version from $OPSROOT - exiting"
    exit 1
}
$FILE = "openserverless-cli_${VERSION}$SUFFIX$EXT"
# the version can contain a '+' which must be percent-encoded in the url path
$TAG = "v" + $VERSION.Replace("+", "%2B")
$URL = "https://github.com/apache/openserverless-cli/releases/download/$TAG/$FILE"

# Create the directory if it doesn't exist
$BinPath = "$HOME\.local\bin"
if (-not (Test-Path -Path $BinPath)) {
    New-Item -ItemType Directory -Force -Path $BinPath | Out-Null
}

# Download the file to a temp location
$TmpFile = Join-Path ([System.IO.Path]::GetTempPath()) $FILE
try {
    Invoke-WebRequest -Uri $URL -OutFile "$TmpFile"
} catch {
    Write-Host "Cannot download ops from:"
    Write-Host $URL
    exit 1
}

# Unpack to a temp folder, then install just the command
$DIR = "openserverless-cli_${VERSION}$SUFFIX"
$TmpDir = Join-Path ([System.IO.Path]::GetTempPath()) "openserverless-cli-$VERSION"
Remove-Item -LiteralPath "$TmpDir" -Recurse -Force -ErrorAction SilentlyContinue
Expand-Archive -LiteralPath "$TmpFile" -DestinationPath "$TmpDir" -Force
Move-Item -LiteralPath (Join-Path (Join-Path "$TmpDir" $DIR) $CMD) -Destination (Join-Path $BinPath $CMD) -Force
Remove-Item -LiteralPath "$TmpDir" -Recurse -Force -ErrorAction SilentlyContinue
Remove-Item -LiteralPath "$TmpFile" -Force -ErrorAction SilentlyContinue

# Verify installation
if (-not (Test-Path -LiteralPath (Join-Path $BinPath $CMD))) {
    Write-Host "Cannot install ops - download and unpack it in a folder in the path from here:"
    Write-Host $URL
    exit 1
}

# Check if the bin path is in the user's PATH
if (-not (($env:PATH -split ';') -contains $BinPath)) {
    Write-Host "$BinPath is not in the path - adding it"
    $existingPath = [System.Environment]::GetEnvironmentVariable("Path", [System.EnvironmentVariableTarget]::User)
    $newPath = "$BinPath;$existingPath"
    [System.Environment]::SetEnvironmentVariable("Path", $newPath, [System.EnvironmentVariableTarget]::User)
    Write-Host "Please restart your terminal to find ops in your path"
}

exit 0

# Powershell End -----------------------------------------------------------
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
out-null
#---------------------------------------------------------------------------