%% WARNING: DO NOT EDIT, AUTO-GENERATED CODE!
%% See https://github.com/aws-beam/aws-codegen for more details.

%% @doc Amazon Web Services Support
%%
%% The Amazon Web Services Support API Reference is intended for programmers
%% who need detailed information about the Amazon Web Services Support
%% operations and data types.
%%
%% You can use the API to manage your support cases programmatically. The
%% Amazon Web Services Support API uses HTTP methods that return results in
%% JSON format.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
%%
%% You can also use the Amazon Web Services Support API to access features
%% for Trusted Advisor: http://aws.amazon.com/premiumsupport/trustedadvisor/.
%% You can return a list of checks and their descriptions, get check results,
%% specify checks to refresh, and get the refresh status of checks.
%%
%% You can manage your support cases with the following Amazon Web Services
%% Support API operations:
%%
%% <ul> <li> The `CreateCase', `DescribeCases',
%% `DescribeAttachment', and `ResolveCase' operations create Amazon
%% Web Services Support cases, retrieve information about cases, and resolve
%% cases.
%%
%% </li> <li> The `DescribeCommunications', `AddCommunicationToCase',
%% and `AddAttachmentsToSet' operations retrieve and add communications
%% and attachments to Amazon Web Services Support cases.
%%
%% </li> <li> The `DescribeServices' and `DescribeSeverityLevels'
%% operations return Amazon Web Service names, service codes, service
%% categories, and problem severity levels. You use these values when you
%% call the `CreateCase' operation.
%%
%% </li> </ul> You can also use the Amazon Web Services Support API to call
%% the Trusted Advisor operations. For more information, see Trusted Advisor:
%% https://docs.aws.amazon.com/ in the Amazon Web Services Support User
%% Guide.
%%
%% For authentication of requests, Amazon Web Services Support uses Signature
%% Version 4 Signing Process:
%% https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html.
%%
%% For more information about this service and the endpoints to use, see
%% About the Amazon Web Services Support API:
%% https://docs.aws.amazon.com/awssupport/latest/user/about-support-api.html
%% in the Amazon Web Services Support User Guide.
-module(aws_support).

-export([add_attachments_to_set/2,
         add_attachments_to_set/3,
         add_communication_to_case/2,
         add_communication_to_case/3,
         create_case/2,
         create_case/3,
         describe_attachment/2,
         describe_attachment/3,
         describe_cases/2,
         describe_cases/3,
         describe_communications/2,
         describe_communications/3,
         describe_create_case_options/2,
         describe_create_case_options/3,
         describe_services/2,
         describe_services/3,
         describe_severity_levels/2,
         describe_severity_levels/3,
         describe_supported_languages/2,
         describe_supported_languages/3,
         describe_trusted_advisor_check_refresh_statuses/2,
         describe_trusted_advisor_check_refresh_statuses/3,
         describe_trusted_advisor_check_result/2,
         describe_trusted_advisor_check_result/3,
         describe_trusted_advisor_check_summaries/2,
         describe_trusted_advisor_check_summaries/3,
         describe_trusted_advisor_checks/2,
         describe_trusted_advisor_checks/3,
         refresh_trusted_advisor_check/2,
         refresh_trusted_advisor_check/3,
         resolve_case/2,
         resolve_case/3]).

-include_lib("hackney/include/hackney_lib.hrl").

%%====================================================================
%% API
%%====================================================================

%% @doc Adds one or more attachments to an attachment set.
%%
%% An attachment set is a temporary container for attachments that you add to
%% a case or case communication. The set is available for 1 hour after
%% it's created. The `expiryTime' returned in the response is when
%% the set expires.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
add_attachments_to_set(Client, Input)
  when is_map(Client), is_map(Input) ->
    add_attachments_to_set(Client, Input, []).
add_attachments_to_set(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"AddAttachmentsToSet">>, Input, Options).

%% @doc Adds additional customer communication to an Amazon Web Services
%% Support case.
%%
%% Use the `caseId' parameter to identify the case to which to add
%% communication. You can list a set of email addresses to copy on the
%% communication by using the `ccEmailAddresses' parameter. The
%% `communicationBody' value contains the text of the communication.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
add_communication_to_case(Client, Input)
  when is_map(Client), is_map(Input) ->
    add_communication_to_case(Client, Input, []).
add_communication_to_case(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"AddCommunicationToCase">>, Input, Options).

%% @doc Creates a case in the Amazon Web Services Support Center.
%%
%% This operation is similar to how you create a case in the Amazon Web
%% Services Support Center Create Case:
%% https://console.aws.amazon.com/support/home#/case/create page.
%%
%% The Amazon Web Services Support API doesn't support requesting service
%% limit increases. You can submit a service limit increase in the following
%% ways:
%%
%% <ul> <li> Submit a request from the Amazon Web Services Support Center
%% Create Case: https://console.aws.amazon.com/support/home#/case/create
%% page.
%%
%% </li> <li> Use the Service Quotas RequestServiceQuotaIncrease:
%% https://docs.aws.amazon.com/servicequotas/2019-06-24/apireference/API_RequestServiceQuotaIncrease.html
%% operation.
%%
%% </li> </ul> A successful `CreateCase' request returns an Amazon Web
%% Services Support case number. You can use the `DescribeCases'
%% operation and specify the case number to get existing Amazon Web Services
%% Support cases. After you create a case, use the
%% `AddCommunicationToCase' operation to add additional communication or
%% attachments to an existing case.
%%
%% The `caseId' is separate from the `displayId' that appears in the
%% Amazon Web Services Support Center:
%% https://console.aws.amazon.com/support. Use the `DescribeCases'
%% operation to get the `displayId'.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
create_case(Client, Input)
  when is_map(Client), is_map(Input) ->
    create_case(Client, Input, []).
create_case(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"CreateCase">>, Input, Options).

%% @doc Returns the attachment that has the specified ID.
%%
%% Attachments can include screenshots, error logs, or other files that
%% describe your issue. Attachment IDs are generated by the case management
%% system when you add an attachment to a case or case communication.
%% Attachment IDs are returned in the `AttachmentDetails' objects that
%% are returned by the `DescribeCommunications' operation.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_attachment(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_attachment(Client, Input, []).
describe_attachment(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeAttachment">>, Input, Options).

%% @doc Returns a list of cases that you specify by passing one or more case
%% IDs.
%%
%% You can use the `afterTime' and `beforeTime' parameters to filter
%% the cases by date. You can set values for the `includeResolvedCases'
%% and `includeCommunications' parameters to specify how much information
%% to return.
%%
%% The response returns the following in JSON format:
%%
%% <ul> <li> One or more CaseDetails:
%% https://docs.aws.amazon.com/awssupport/latest/APIReference/API_CaseDetails.html
%% data types.
%%
%% </li> <li> One or more `nextToken' values, which specify where to
%% paginate the returned records represented by the `CaseDetails'
%% objects.
%%
%% </li> </ul> Case data is available for 12 months after creation. If a case
%% was created more than 12 months ago, a request might return an error.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_cases(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_cases(Client, Input, []).
describe_cases(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeCases">>, Input, Options).

%% @doc Returns communications and attachments for one or more support cases.
%%
%% Use the `afterTime' and `beforeTime' parameters to filter by date.
%% You can use the `caseId' parameter to restrict the results to a
%% specific case.
%%
%% Case data is available for 12 months after creation. If a case was created
%% more than 12 months ago, a request for data might cause an error.
%%
%% You can use the `maxResults' and `nextToken' parameters to control
%% the pagination of the results. Set `maxResults' to the number of cases
%% that you want to display on each page, and use `nextToken' to specify
%% the resumption of pagination.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_communications(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_communications(Client, Input, []).
describe_communications(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeCommunications">>, Input, Options).

%% @doc Returns a list of CreateCaseOption types along with the corresponding
%% supported hours and language availability.
%%
%% You can specify the `language' `categoryCode', `issueType' and
%% `serviceCode' used to retrieve the CreateCaseOptions.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_create_case_options(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_create_case_options(Client, Input, []).
describe_create_case_options(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeCreateCaseOptions">>, Input, Options).

%% @doc Returns the current list of Amazon Web Services services and a list
%% of service categories for each service.
%%
%% You then use service names and categories in your `CreateCase'
%% requests. Each Amazon Web Services service has its own set of categories.
%%
%% The service codes and category codes correspond to the values that appear
%% in the Service and Category lists on the Amazon Web Services Support
%% Center Create Case:
%% https://console.aws.amazon.com/support/home#/case/create page. The values
%% in those fields don't necessarily match the service codes and
%% categories returned by the `DescribeServices' operation. Always use
%% the service codes and categories that the `DescribeServices' operation
%% returns, so that you have the most recent set of service and category
%% codes.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_services(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_services(Client, Input, []).
describe_services(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeServices">>, Input, Options).

%% @doc Returns the list of severity levels that you can assign to a support
%% case.
%%
%% The severity level for a case is also a field in the `CaseDetails'
%% data type that you include for a `CreateCase' request.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_severity_levels(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_severity_levels(Client, Input, []).
describe_severity_levels(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeSeverityLevels">>, Input, Options).

%% @doc Returns a list of supported languages for a specified
%% `categoryCode', `issueType' and `serviceCode'.
%%
%% The returned supported languages will include a ISO 639-1 code for the
%% `language', and the language display name.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
describe_supported_languages(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_supported_languages(Client, Input, []).
describe_supported_languages(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeSupportedLanguages">>, Input, Options).

%% @doc Returns the refresh status of the Trusted Advisor checks that have
%% the specified check IDs.
%%
%% You can get the check IDs by calling the
%% `DescribeTrustedAdvisorChecks' operation.
%%
%% Some checks are refreshed automatically, and you can't return their
%% refresh statuses by using the
%% `DescribeTrustedAdvisorCheckRefreshStatuses' operation. If you call
%% this operation for these checks, you might see an
%% `InvalidParameterValue' error.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
%%
%% To call the Trusted Advisor operations in the Amazon Web Services Support
%% API, you must use the US East (N. Virginia) endpoint. Currently, the US
%% West (Oregon) and Europe (Ireland) endpoints don't support the Trusted
%% Advisor operations. For more information, see About the Amazon Web
%% Services Support API:
%% https://docs.aws.amazon.com/awssupport/latest/user/about-support-api.html#endpoint
%% in the Amazon Web Services Support User Guide.
describe_trusted_advisor_check_refresh_statuses(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_trusted_advisor_check_refresh_statuses(Client, Input, []).
describe_trusted_advisor_check_refresh_statuses(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeTrustedAdvisorCheckRefreshStatuses">>, Input, Options).

%% @doc Returns the results of the Trusted Advisor check that has the
%% specified check ID.
%%
%% You can get the check IDs by calling the
%% `DescribeTrustedAdvisorChecks' operation.
%%
%% The response contains a `TrustedAdvisorCheckResult' object, which
%% contains these three objects:
%%
%% <ul> <li> `TrustedAdvisorCategorySpecificSummary'
%%
%% </li> <li> `TrustedAdvisorResourceDetail'
%%
%% </li> <li> `TrustedAdvisorResourcesSummary'
%%
%% </li> </ul> In addition, the response contains these fields:
%%
%% <ul> <li> status - The alert status of the check can be `ok' (green),
%% `warning' (yellow), `error' (red), or `not_available'.
%%
%% </li> <li> timestamp - The time of the last refresh of the check.
%%
%% </li> <li> checkId - The unique identifier for the check.
%%
%% </li> </ul> You must have a Business, Enterprise On-Ramp, or Enterprise
%% Support plan to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
%%
%% To call the Trusted Advisor operations in the Amazon Web Services Support
%% API, you must use the US East (N. Virginia) endpoint. Currently, the US
%% West (Oregon) and Europe (Ireland) endpoints don't support the Trusted
%% Advisor operations. For more information, see About the Amazon Web
%% Services Support API:
%% https://docs.aws.amazon.com/awssupport/latest/user/about-support-api.html#endpoint
%% in the Amazon Web Services Support User Guide.
describe_trusted_advisor_check_result(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_trusted_advisor_check_result(Client, Input, []).
describe_trusted_advisor_check_result(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeTrustedAdvisorCheckResult">>, Input, Options).

%% @doc Returns the results for the Trusted Advisor check summaries for the
%% check IDs that you specified.
%%
%% You can get the check IDs by calling the
%% `DescribeTrustedAdvisorChecks' operation.
%%
%% The response contains an array of `TrustedAdvisorCheckSummary'
%% objects.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
%%
%% To call the Trusted Advisor operations in the Amazon Web Services Support
%% API, you must use the US East (N. Virginia) endpoint. Currently, the US
%% West (Oregon) and Europe (Ireland) endpoints don't support the Trusted
%% Advisor operations. For more information, see About the Amazon Web
%% Services Support API:
%% https://docs.aws.amazon.com/awssupport/latest/user/about-support-api.html#endpoint
%% in the Amazon Web Services Support User Guide.
describe_trusted_advisor_check_summaries(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_trusted_advisor_check_summaries(Client, Input, []).
describe_trusted_advisor_check_summaries(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeTrustedAdvisorCheckSummaries">>, Input, Options).

%% @doc Returns information about all available Trusted Advisor checks,
%% including the name, ID, category, description, and metadata.
%%
%% You must specify a language code.
%%
%% The response contains a `TrustedAdvisorCheckDescription' object for
%% each check. You must set the Amazon Web Services Region to us-east-1.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
%%
%% The names and descriptions for Trusted Advisor checks are subject to
%% change. We recommend that you specify the check ID in your code to
%% uniquely identify a check.
%%
%% To call the Trusted Advisor operations in the Amazon Web Services Support
%% API, you must use the US East (N. Virginia) endpoint. Currently, the US
%% West (Oregon) and Europe (Ireland) endpoints don't support the Trusted
%% Advisor operations. For more information, see About the Amazon Web
%% Services Support API:
%% https://docs.aws.amazon.com/awssupport/latest/user/about-support-api.html#endpoint
%% in the Amazon Web Services Support User Guide.
describe_trusted_advisor_checks(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_trusted_advisor_checks(Client, Input, []).
describe_trusted_advisor_checks(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeTrustedAdvisorChecks">>, Input, Options).

%% @doc Refreshes the Trusted Advisor check that you specify using the check
%% ID.
%%
%% You can get the check IDs by calling the
%% `DescribeTrustedAdvisorChecks' operation.
%%
%% Some checks are refreshed automatically. If you call the
%% `RefreshTrustedAdvisorCheck' operation to refresh them, you might see
%% the `InvalidParameterValue' error.
%%
%% The response contains a `TrustedAdvisorCheckRefreshStatus' object.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
%%
%% To call the Trusted Advisor operations in the Amazon Web Services Support
%% API, you must use the US East (N. Virginia) endpoint. Currently, the US
%% West (Oregon) and Europe (Ireland) endpoints don't support the Trusted
%% Advisor operations. For more information, see About the Amazon Web
%% Services Support API:
%% https://docs.aws.amazon.com/awssupport/latest/user/about-support-api.html#endpoint
%% in the Amazon Web Services Support User Guide.
refresh_trusted_advisor_check(Client, Input)
  when is_map(Client), is_map(Input) ->
    refresh_trusted_advisor_check(Client, Input, []).
refresh_trusted_advisor_check(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"RefreshTrustedAdvisorCheck">>, Input, Options).

%% @doc Resolves a support case.
%%
%% This operation takes a `caseId' and returns the initial and final
%% state of the case.
%%
%% You must have a Business, Enterprise On-Ramp, or Enterprise Support plan
%% to use the Amazon Web Services Support API.
%%
%% If you call the Amazon Web Services Support API from an account that
%% doesn't have a Business, Enterprise On-Ramp, or Enterprise Support
%% plan, the `SubscriptionRequiredException' error message appears. For
%% information about changing your support plan, see Amazon Web Services
%% Support: http://aws.amazon.com/premiumsupport/.
resolve_case(Client, Input)
  when is_map(Client), is_map(Input) ->
    resolve_case(Client, Input, []).
resolve_case(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"ResolveCase">>, Input, Options).

%%====================================================================
%% Internal functions
%%====================================================================

-spec request(aws_client:aws_client(), binary(), map(), list()) ->
    {ok, Result, {integer(), list(), hackney:client()}} |
    {error, Error, {integer(), list(), hackney:client()}} |
    {error, term()} when
    Result :: map() | undefined,
    Error :: map().
request(Client, Action, Input, Options) ->
    RequestFun = fun() -> do_request(Client, Action, Input, Options) end,
    aws_request:request(RequestFun, Options).

do_request(Client, Action, Input0, Options) ->
    Client1 = Client#{service => <<"support">>},
    Host = build_host(<<"support">>, Client1),
    URL = build_url(Host, Client1),
    Headers = [
        {<<"Host">>, Host},
        {<<"Content-Type">>, <<"application/x-amz-json-1.1">>},
        {<<"X-Amz-Target">>, <<"AWSSupport_20130415.", Action/binary>>}
    ],

    Input = Input0,

    Payload = jsx:encode(Input),
    SignedHeaders = aws_request:sign_request(Client1, <<"POST">>, URL, Headers, Payload),
    Response = hackney:request(post, URL, SignedHeaders, Payload, Options),
    handle_response(Response).

handle_response({ok, 200, ResponseHeaders, Client}) ->
    case hackney:body(Client) of
        {ok, <<>>} ->
            {ok, undefined, {200, ResponseHeaders, Client}};
        {ok, Body} ->
            Result = jsx:decode(Body),
            {ok, Result, {200, ResponseHeaders, Client}}
    end;
handle_response({ok, StatusCode, ResponseHeaders, Client}) ->
    {ok, Body} = hackney:body(Client),
    Error = jsx:decode(Body),
    {error, Error, {StatusCode, ResponseHeaders, Client}};
handle_response({error, Reason}) ->
    {error, Reason}.

build_host(_EndpointPrefix, #{region := <<"local">>, endpoint := Endpoint}) ->
    Endpoint;
build_host(_EndpointPrefix, #{region := <<"local">>}) ->
    <<"localhost">>;
build_host(EndpointPrefix, #{region := Region, endpoint := Endpoint}) ->
    aws_util:binary_join([EndpointPrefix, Region, Endpoint], <<".">>).

build_url(Host, Client) ->
    Proto = aws_client:proto(Client),
    Port = aws_client:port(Client),
    aws_util:binary_join([Proto, <<"://">>, Host, <<":">>, Port, <<"/">>], <<"">>).