class_CloduSmithClient.ps1

# [CloudSmithClientPackagesGet]::new('stackoverflow','nuget').Invoke() | select Name, Version, Uploaded_At, Slug

class CloudSmithClient {
    [string]$Namespace
    [string]$Uri
    [string]$Method

    [string] hidden $ApiVersion = 'v1'
    [string] hidden $Path
    [hashtable] hidden $Headers = @{ }
    [hashtable] hidden $Body = @{ }

    [string] hidden $EnvName_Token = 'CLOUDSMITH_API_KEY'
    [string] hidden $ConfigPath

    CloudSmithClient($method, $path) {

        $this.Path = $path
        $this.Method = $method

        if ($IsWindows) {
            $this.ConfigPath = Join-Path -Path $env:LOCALAPPDATA -ChildPath 'cloudsmith\credentials.ini'
        }

        if ($IsLinux) {
            $this.ConfigPath = Join-Path -Path $env:HOME -ChildPath '/.config/cloudsmith/credentials.ini'
        }

        if ($IsMacOS) {
            $this.ConfigPath = Join-Path -Path $env:HOME -ChildPath '/Library/Application Support/cloudsmith/credentials.ini'
        }

        if (Test-Path $this.ConfigPath) {
            $search = Get-Content $this.ConfigPath | Select-String -Pattern "^api_key = (\w+)"

            if ($search.Matches.Success -and $search.Matches.Groups.count -eq 2) {
                $this.SetToken($search.Matches.Groups[1].Value)
            }
        }

        if ([Environment]::GetEnvironmentVariables().Contains($this.EnvName_Token)) {
            $this.SetToken([Environment]::GetEnvironmentVariable($this.EnvName_Token))
        }

        $this.ConstructUri()
    }

    [void] ConstructUri() {
        $this.Uri = 'https://api.cloudsmith.io/{0}/{1}/{2}/' -f $this.ApiVersion, $this.Path, $this.Namespace
    }

    [CloudSmithClient] SetNamespace([string]$namespace) {
        $this.Namespace = $namespace
        $this.ConstructUri()
        return $this
    }

    [CloudSmithClient] SetToken([string]$token) {
        if ($this.Headers.ContainsKey('X-Api-Key')) {
            $this.Headers['X-Api-Key'] = $token
        }
        else {
            $this.Headers.Add('X-Api-Key', $token)
        }
        return $this
    }

    [object] Invoke() {

        $parameters = @{
            Uri         = $this.Uri
            Headers     = $this.Headers
            ContentType = 'application/json'
            Method      = $this.Method
        }

        if ($this.Body.Count -gt 0) {
            $parameters["Body"] = '[{0}]' -f ($this.Body | ConvertTo-Json)
        }

        return Invoke-RestMethod @parameters
    }

}

class CloudSmithClientPackages : CloudSmithClient {

    [string]$Repository

    CloudSmithClientPackages ($method, $repository) : base ($method, 'packages' ) {

        $this.Repository = $repository
        $this.ConstructUri()

    }

    [CloudSmithClientPackages] SetRepository([string]$repository) {
        $this.Repository = $repository
        $this.ConstructUri()
        return $this
    }

    [void] ConstructUri() {
        ([CloudSmithClient]$this).ConstructUri()
        $this.Uri = "{0}{1}" -f $this.Uri, $this.Repository
    }

}

class CloudSmithClientPackagesGet : CloudSmithClientPackages {

    CloudSmithClientPackagesGet ($repository): base ('Get', $repository) {}
    CloudSmithClientPackagesGet ($namespace, $repository): base ('Get', $repository) {
        $this.Namespace = $namespace
        $this.ConstructUri()
    }
}