{-# LANGUAGE DataKinds                   #-}
{-# LANGUAGE DeriveGeneric               #-}
{-# LANGUAGE FlexibleInstances           #-}
{-# LANGUAGE GeneralizedNewtypeDeriving  #-}
{-# LANGUAGE LambdaCase                  #-}
{-# LANGUAGE NoImplicitPrelude           #-}
{-# LANGUAGE OverloadedStrings           #-}
{-# LANGUAGE RecordWildCards             #-}
{-# LANGUAGE TypeFamilies                #-}

{-# OPTIONS_GHC -fno-warn-unused-imports #-}

-- Module      : Network.AWS.OpsWorks.CreateStack
-- Copyright   : (c) 2013-2014 Brendan Hay <brendan.g.hay@gmail.com>
-- License     : This Source Code Form is subject to the terms of
--               the Mozilla Public License, v. 2.0.
--               A copy of the MPL can be found in the LICENSE file or
--               you can obtain it at http://mozilla.org/MPL/2.0/.
-- Maintainer  : Brendan Hay <brendan.g.hay@gmail.com>
-- Stability   : experimental
-- Portability : non-portable (GHC extensions)

-- | Creates a new stack. For more information, see Create a New Stack. Required
-- Permissions: To use this action, an IAM user must have an attached policy
-- that explicitly grants permissions. For more information on user
-- permissions, see Managing User Permissions.
--
-- <http://docs.aws.amazon.com/opsworks/latest/APIReference/API_CreateStack.html>
module Network.AWS.OpsWorks.CreateStack
    (
    -- * Request
      CreateStack
    -- ** Request constructor
    , createStack
    -- ** Request lenses
    , csAttributes
    , csChefConfiguration
    , csConfigurationManager
    , csCustomCookbooksSource
    , csCustomJson
    , csDefaultAvailabilityZone
    , csDefaultInstanceProfileArn
    , csDefaultOs
    , csDefaultRootDeviceType
    , csDefaultSshKeyName
    , csDefaultSubnetId
    , csHostnameTheme
    , csName
    , csRegion
    , csServiceRoleArn
    , csUseCustomCookbooks
    , csUseOpsworksSecurityGroups
    , csVpcId

    -- * Response
    , CreateStackResponse
    -- ** Response constructor
    , createStackResponse
    -- ** Response lenses
    , csr1StackId
    ) where

import Network.AWS.Prelude
import Network.AWS.Request.JSON
import Network.AWS.OpsWorks.Types
import qualified GHC.Exts

data CreateStack = CreateStack
    { _csAttributes                :: Map StackAttributesKeys Text
    , _csChefConfiguration         :: Maybe ChefConfiguration
    , _csConfigurationManager      :: Maybe StackConfigurationManager
    , _csCustomCookbooksSource     :: Maybe Source
    , _csCustomJson                :: Maybe Text
    , _csDefaultAvailabilityZone   :: Maybe Text
    , _csDefaultInstanceProfileArn :: Text
    , _csDefaultOs                 :: Maybe Text
    , _csDefaultRootDeviceType     :: Maybe RootDeviceType
    , _csDefaultSshKeyName         :: Maybe Text
    , _csDefaultSubnetId           :: Maybe Text
    , _csHostnameTheme             :: Maybe Text
    , _csName                      :: Text
    , _csRegion                    :: Text
    , _csServiceRoleArn            :: Text
    , _csUseCustomCookbooks        :: Maybe Bool
    , _csUseOpsworksSecurityGroups :: Maybe Bool
    , _csVpcId                     :: Maybe Text
    } deriving (Eq, Show)

-- | 'CreateStack' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'csAttributes' @::@ 'HashMap' 'StackAttributesKeys' 'Text'
--
-- * 'csChefConfiguration' @::@ 'Maybe' 'ChefConfiguration'
--
-- * 'csConfigurationManager' @::@ 'Maybe' 'StackConfigurationManager'
--
-- * 'csCustomCookbooksSource' @::@ 'Maybe' 'Source'
--
-- * 'csCustomJson' @::@ 'Maybe' 'Text'
--
-- * 'csDefaultAvailabilityZone' @::@ 'Maybe' 'Text'
--
-- * 'csDefaultInstanceProfileArn' @::@ 'Text'
--
-- * 'csDefaultOs' @::@ 'Maybe' 'Text'
--
-- * 'csDefaultRootDeviceType' @::@ 'Maybe' 'RootDeviceType'
--
-- * 'csDefaultSshKeyName' @::@ 'Maybe' 'Text'
--
-- * 'csDefaultSubnetId' @::@ 'Maybe' 'Text'
--
-- * 'csHostnameTheme' @::@ 'Maybe' 'Text'
--
-- * 'csName' @::@ 'Text'
--
-- * 'csRegion' @::@ 'Text'
--
-- * 'csServiceRoleArn' @::@ 'Text'
--
-- * 'csUseCustomCookbooks' @::@ 'Maybe' 'Bool'
--
-- * 'csUseOpsworksSecurityGroups' @::@ 'Maybe' 'Bool'
--
-- * 'csVpcId' @::@ 'Maybe' 'Text'
--
createStack :: Text -- ^ 'csName'
            -> Text -- ^ 'csRegion'
            -> Text -- ^ 'csServiceRoleArn'
            -> Text -- ^ 'csDefaultInstanceProfileArn'
            -> CreateStack
createStack p1 p2 p3 p4 = CreateStack
    { _csName                      = p1
    , _csRegion                    = p2
    , _csServiceRoleArn            = p3
    , _csDefaultInstanceProfileArn = p4
    , _csVpcId                     = Nothing
    , _csAttributes                = mempty
    , _csDefaultOs                 = Nothing
    , _csHostnameTheme             = Nothing
    , _csDefaultAvailabilityZone   = Nothing
    , _csDefaultSubnetId           = Nothing
    , _csCustomJson                = Nothing
    , _csConfigurationManager      = Nothing
    , _csChefConfiguration         = Nothing
    , _csUseCustomCookbooks        = Nothing
    , _csUseOpsworksSecurityGroups = Nothing
    , _csCustomCookbooksSource     = Nothing
    , _csDefaultSshKeyName         = Nothing
    , _csDefaultRootDeviceType     = Nothing
    }

-- | One or more user-defined key/value pairs to be added to the stack
-- attributes.
csAttributes :: Lens' CreateStack (HashMap StackAttributesKeys Text)
csAttributes = lens _csAttributes (\s a -> s { _csAttributes = a }) . _Map

-- | A ChefConfiguration object that specifies whether to enable Berkshelf and
-- the Berkshelf version on Chef 11.10 stacks. For more information, see
-- Create a New Stack.
csChefConfiguration :: Lens' CreateStack (Maybe ChefConfiguration)
csChefConfiguration =
    lens _csChefConfiguration (\s a -> s { _csChefConfiguration = a })

-- | The configuration manager. When you clone a stack we recommend that you
-- use the configuration manager to specify the Chef version, 0.9, 11.4, or
-- 11.10. The default value is currently 11.4.
csConfigurationManager :: Lens' CreateStack (Maybe StackConfigurationManager)
csConfigurationManager =
    lens _csConfigurationManager (\s a -> s { _csConfigurationManager = a })

csCustomCookbooksSource :: Lens' CreateStack (Maybe Source)
csCustomCookbooksSource =
    lens _csCustomCookbooksSource (\s a -> s { _csCustomCookbooksSource = a })

-- | A string that contains user-defined, custom JSON. It is used to override
-- the corresponding default stack configuration JSON values. The string
-- should be in the following format and must escape characters such as
-- '"'.: "{\"key1\": \"value1\", \"key2\": \"value2\",...}" For more
-- information on custom JSON, see Use Custom JSON to Modify the Stack
-- Configuration JSON.
csCustomJson :: Lens' CreateStack (Maybe Text)
csCustomJson = lens _csCustomJson (\s a -> s { _csCustomJson = a })

-- | The stack's default Availability Zone, which must be in the specified
-- region. For more information, see Regions and Endpoints. If you also
-- specify a value for DefaultSubnetId, the subnet must be in the same zone.
-- For more information, see the VpcId parameter description.
csDefaultAvailabilityZone :: Lens' CreateStack (Maybe Text)
csDefaultAvailabilityZone =
    lens _csDefaultAvailabilityZone
        (\s a -> s { _csDefaultAvailabilityZone = a })

-- | The ARN of an IAM profile that is the default profile for all of the
-- stack's EC2 instances. For more information about IAM ARNs, see Using
-- Identifiers.
csDefaultInstanceProfileArn :: Lens' CreateStack Text
csDefaultInstanceProfileArn =
    lens _csDefaultInstanceProfileArn
        (\s a -> s { _csDefaultInstanceProfileArn = a })

-- | The stack's default operating system, which must be set to Amazon Linux
-- or Ubuntu 12.04 LTS. The default option is Amazon Linux.
csDefaultOs :: Lens' CreateStack (Maybe Text)
csDefaultOs = lens _csDefaultOs (\s a -> s { _csDefaultOs = a })

-- | The default root device type. This value is used by default for all
-- instances in the stack, but you can override it when you create an
-- instance. The default option is instance-store. For more information, see
-- Storage for the Root Device.
csDefaultRootDeviceType :: Lens' CreateStack (Maybe RootDeviceType)
csDefaultRootDeviceType =
    lens _csDefaultRootDeviceType (\s a -> s { _csDefaultRootDeviceType = a })

-- | A default SSH key for the stack instances. You can override this value
-- when you create or update an instance.
csDefaultSshKeyName :: Lens' CreateStack (Maybe Text)
csDefaultSshKeyName =
    lens _csDefaultSshKeyName (\s a -> s { _csDefaultSshKeyName = a })

-- | The stack's default subnet ID. All instances will be launched into this
-- subnet unless you specify otherwise when you create the instance. If you
-- also specify a value for DefaultAvailabilityZone, the subnet must be in
-- that zone. For information on default values and when this parameter is
-- required, see the VpcId parameter description.
csDefaultSubnetId :: Lens' CreateStack (Maybe Text)
csDefaultSubnetId =
    lens _csDefaultSubnetId (\s a -> s { _csDefaultSubnetId = a })

-- | The stack's host name theme, with spaces are replaced by underscores. The
-- theme is used to generate host names for the stack's instances. By
-- default, HostnameTheme is set to Layer_Dependent, which creates host
-- names by appending integers to the layer's short name. The other themes
-- are: Baked_Goods Clouds European_Cities Fruits Greek_Deities
-- Legendary_Creatures_from_Japan Planets_and_Moons Roman_Deities
-- Scottish_Islands US_Cities Wild_Cats To obtain a generated host name,
-- call GetHostNameSuggestion, which returns a host name based on the
-- current theme.
csHostnameTheme :: Lens' CreateStack (Maybe Text)
csHostnameTheme = lens _csHostnameTheme (\s a -> s { _csHostnameTheme = a })

-- | The stack name.
csName :: Lens' CreateStack Text
csName = lens _csName (\s a -> s { _csName = a })

-- | The stack AWS region, such as "us-east-1". For more information about
-- Amazon regions, see Regions and Endpoints.
csRegion :: Lens' CreateStack Text
csRegion = lens _csRegion (\s a -> s { _csRegion = a })

-- | The stack AWS Identity and Access Management (IAM) role, which allows AWS
-- OpsWorks to work with AWS resources on your behalf. You must set this
-- parameter to the Amazon Resource Name (ARN) for an existing IAM role. For
-- more information about IAM ARNs, see Using Identifiers.
csServiceRoleArn :: Lens' CreateStack Text
csServiceRoleArn = lens _csServiceRoleArn (\s a -> s { _csServiceRoleArn = a })

-- | Whether the stack uses custom cookbooks.
csUseCustomCookbooks :: Lens' CreateStack (Maybe Bool)
csUseCustomCookbooks =
    lens _csUseCustomCookbooks (\s a -> s { _csUseCustomCookbooks = a })

-- | Whether to associate the AWS OpsWorks built-in security groups with the
-- stack's layers. AWS OpsWorks provides a standard set of built-in security
-- groups, one for each layer, which are associated with layers by default.
-- With UseOpsworksSecurityGroups you can instead provide your own custom
-- security groups. UseOpsworksSecurityGroups has the following settings:
-- True - AWS OpsWorks automatically associates the appropriate built-in
-- security group with each layer (default setting). You can associate
-- additional security groups with a layer after you create it but you
-- cannot delete the built-in security group. False - AWS OpsWorks does not
-- associate built-in security groups with layers. You must create
-- appropriate EC2 security groups and associate a security group with each
-- layer that you create. However, you can still manually associate a
-- built-in security group with a layer on creation; custom security groups
-- are required only for those layers that need custom settings. For more
-- information, see Create a New Stack.
csUseOpsworksSecurityGroups :: Lens' CreateStack (Maybe Bool)
csUseOpsworksSecurityGroups =
    lens _csUseOpsworksSecurityGroups
        (\s a -> s { _csUseOpsworksSecurityGroups = a })

-- | The ID of the VPC that the stack is to be launched into. It must be in
-- the specified region. All instances will be launched into this VPC, and
-- you cannot change the ID later. If your account supports EC2 Classic, the
-- default value is no VPC. If your account does not support EC2 Classic,
-- the default value is the default VPC for the specified region. If the VPC
-- ID corresponds to a default VPC and you have specified either the
-- DefaultAvailabilityZone or the DefaultSubnetId parameter only, AWS
-- OpsWorks infers the value of the other parameter. If you specify neither
-- parameter, AWS OpsWorks sets these parameters to the first valid
-- Availability Zone for the specified region and the corresponding default
-- VPC subnet ID, respectively. If you specify a nondefault VPC ID, note the
-- following: It must belong to a VPC in your account that is in the
-- specified region. You must specify a value for DefaultSubnetId. For more
-- information on how to use AWS OpsWorks with a VPC, see Running a Stack in
-- a VPC. For more information on default VPC and EC2 Classic, see Supported
-- Platforms.
csVpcId :: Lens' CreateStack (Maybe Text)
csVpcId = lens _csVpcId (\s a -> s { _csVpcId = a })

newtype CreateStackResponse = CreateStackResponse
    { _csr1StackId :: Maybe Text
    } deriving (Eq, Ord, Show, Monoid)

-- | 'CreateStackResponse' constructor.
--
-- The fields accessible through corresponding lenses are:
--
-- * 'csr1StackId' @::@ 'Maybe' 'Text'
--
createStackResponse :: CreateStackResponse
createStackResponse = CreateStackResponse
    { _csr1StackId = Nothing
    }

-- | The stack ID, which is an opaque string that you use to identify the
-- stack when performing actions such as DescribeStacks.
csr1StackId :: Lens' CreateStackResponse (Maybe Text)
csr1StackId = lens _csr1StackId (\s a -> s { _csr1StackId = a })

instance ToPath CreateStack where
    toPath = const "/"

instance ToQuery CreateStack where
    toQuery = const mempty

instance ToHeaders CreateStack

instance ToJSON CreateStack where
    toJSON CreateStack{..} = object
        [ "Name"                      .= _csName
        , "Region"                    .= _csRegion
        , "VpcId"                     .= _csVpcId
        , "Attributes"                .= _csAttributes
        , "ServiceRoleArn"            .= _csServiceRoleArn
        , "DefaultInstanceProfileArn" .= _csDefaultInstanceProfileArn
        , "DefaultOs"                 .= _csDefaultOs
        , "HostnameTheme"             .= _csHostnameTheme
        , "DefaultAvailabilityZone"   .= _csDefaultAvailabilityZone
        , "DefaultSubnetId"           .= _csDefaultSubnetId
        , "CustomJson"                .= _csCustomJson
        , "ConfigurationManager"      .= _csConfigurationManager
        , "ChefConfiguration"         .= _csChefConfiguration
        , "UseCustomCookbooks"        .= _csUseCustomCookbooks
        , "UseOpsworksSecurityGroups" .= _csUseOpsworksSecurityGroups
        , "CustomCookbooksSource"     .= _csCustomCookbooksSource
        , "DefaultSshKeyName"         .= _csDefaultSshKeyName
        , "DefaultRootDeviceType"     .= _csDefaultRootDeviceType
        ]

instance AWSRequest CreateStack where
    type Sv CreateStack = OpsWorks
    type Rs CreateStack = CreateStackResponse

    request  = post "CreateStack"
    response = jsonResponse

instance FromJSON CreateStackResponse where
    parseJSON = withObject "CreateStackResponse" $ \o -> CreateStackResponse
        <$> o .:? "StackId"