#!powershell

# Copyright: (c) 2017, Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

#Requires -Module Ansible.ModuleUtils.Legacy
#Requires -Module Ansible.ModuleUtils.CommandUtil
#Requires -Module Ansible.ModuleUtils.FileUtil

# TODO: add check mode support

Set-StrictMode -Version 2
$ErrorActionPreference = 'Stop'

$params = Parse-Args $args -supports_check_mode $false

$raw_command_line = Get-AnsibleParam -obj $params -name "_raw_params" -type "str" -failifempty $true
$chdir = Get-AnsibleParam -obj $params -name "chdir" -type "path"
$creates = Get-AnsibleParam -obj $params -name "creates" -type "path"
$removes = Get-AnsibleParam -obj $params -name "removes" -type "path"
$stdin = Get-AnsibleParam -obj $params -name "stdin" -type "str"
$output_encoding_override = Get-AnsibleParam -obj $params -name "output_encoding_override" -type "str"

$raw_command_line = $raw_command_line.Trim()

$result = @{
    changed = $true
    cmd = $raw_command_line
}

if ($creates -and $(Test-AnsiblePath -Path $creates)) {
    Exit-Json @{ msg = "skipped, since $creates exists"; cmd = $raw_command_line; changed = $false; skipped = $true; rc = 0 }
}

if ($removes -and -not $(Test-AnsiblePath -Path $removes)) {
    Exit-Json @{ msg = "skipped, since $removes does not exist"; cmd = $raw_command_line; changed = $false; skipped = $true; rc = 0 }
}

$command_args = @{
    command = $raw_command_line
}
if ($chdir) {
    $command_args['working_directory'] = $chdir
}
if ($stdin) {
    $command_args['stdin'] = $stdin
}
if ($output_encoding_override) {
    $command_args['output_encoding_override'] = $output_encoding_override
}

$start_datetime = [DateTime]::UtcNow
try {
    $command_result = Run-Command @command_args
}
catch {
    $result.changed = $false
    try {
        $result.rc = $_.Exception.NativeErrorCode
    }
    catch {
        $result.rc = 2
    }
    Fail-Json -obj $result -message $_.Exception.Message
}

$result.stdout = $command_result.stdout
$result.stderr = $command_result.stderr
$result.rc = $command_result.rc

$end_datetime = [DateTime]::UtcNow
$result.start = $start_datetime.ToString("yyyy-MM-dd HH:mm:ss.ffffff")
$result.end = $end_datetime.ToString("yyyy-MM-dd HH:mm:ss.ffffff")
$result.delta = $($end_datetime - $start_datetime).ToString("h\:mm\:ss\.ffffff")

If ($result.rc -ne 0) {
    Fail-Json -obj $result -message "non-zero return code"
}

Exit-Json $result