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#!powershell
# -*- coding: utf-8 -*-

# (c) 2022, John McCall (@lowlydba)
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

#AnsibleRequires -CSharpUtil Ansible.Basic
#AnsibleRequires -PowerShell ansible_collections.lowlydba.sqlserver.plugins.module_utils._SqlServerUtils
#Requires -Modules @{ ModuleName="dbatools"; ModuleVersion="2.0.0" }

$ErrorActionPreference = "Stop"

$spec = @{
    supports_check_mode = $true
    options = @{
        identity = @{type = 'str'; required = $true }
        name = @{type = 'str'; required = $false }
        password = @{type = 'str'; required = $false; no_log = $true }
        mapped_class_type = @{type = 'str'; required = $false; choices = @('CryptographicProvider', 'None') }
        provider_name = @{type = 'str'; required = $false }
        force = @{type = 'bool'; required = $false; default = $false }
        state = @{type = 'str'; required = $false; default = 'present'; choices = @('present', 'absent') }
    }
}

$module = [Ansible.Basic.AnsibleModule]::Create($args, $spec, @(Get-LowlyDbaSqlServerAuthSpec))
$sqlInstance, $sqlCredential = Get-SqlCredential -Module $module
$identity = $module.Params.identity
$name = $module.Params.name
if ($null -ne $module.Params.password) {
    $secure_password = ConvertTo-SecureString -String $module.Params.password -AsPlainText -Force
}
$mapped_class_type = $module.Params.mapped_class_type
$provider_name = $module.Params.provider_name
$state = $module.Params.state
$force = $module.Params.force
$checkMode = $module.CheckMode

$module.Result.changed = $false

try {
    $getCredendtialSplat = @{
        SqlInstance = $sqlInstance
        SqlCredential = $sqlCredential
        Identity = $identity
        EnableException = $true
    }
    $existingCredential = Get-DbaCredential @getCredendtialSplat

    if ($state -eq "absent") {
        # Remove credential if it exists
        if ($null -ne $existingCredential) {
            try {
                $removeCredentialSplat = @{
                    EnableException = $true
                    WhatIf = $checkMode
                    Confirm = $false
                }
                $output = $existingCredential | Remove-DbaCredential @removeCredentialSplat
                $module.Result.changed = $true
            }
            catch {
                $module.FailJson("Removing credential failed: $($_.Exception.Message)", $_)
            }
        }
    }
    elseif ($state -eq "present") {
        # Create credential
        if (($null -ne $existingCredential -and $force -eq $true) -or $null -eq $existingCredential) {
            try {
                $newCredentialSplat = @{
                    SqlInstance = $sqlInstance
                    SqlCredential = $sqlCredential
                    Identity = $identity
                    EnableException = $true
                    WhatIf = $checkMode
                    Force = $force
                    Confirm = $false
                }
                if ($null -ne $name) {
                    $newCredentialSplat.Add("Name", $name)
                }
                if ($null -ne $secure_password) {
                    $newCredentialSplat.Add("SecurePassword", $secure_password)
                }
                if ($null -ne $mapped_class_type) {
                    $newCredentialSplat.Add("MappedClassType", $mapped_class_type)
                }
                if ($null -ne $provider_name) {
                    $newCredentialSplat.Add("ProviderName", $provider_name)
                }
                $output = New-DbaCredential @newCredentialSplat
                $module.result.changed = $true
            }
            catch {
                $module.FailJson("Creating credential failed: $($_.Exception.Message)", $_)
            }
        }
        # Return existing credential if nothing is changed
        elseif ($null -ne $existingCredential) {
            $output = $existingCredential
        }
    }
    try {
        if ($null -ne $output) {
            $resultData = ConvertTo-SerializableObject -InputObject $output
            $module.Result.data = $resultData
        }
        $module.ExitJson()
    }
    catch {
        $module.FailJson("Failure: $($_.Exception.Message)", $_)
    }
}
catch {
    $module.FailJson("Configuring credential failed: $($_.Exception.Message) ; $getCredendtialSplat", $_)
}