package consumption

// Copyright (c) Microsoft and contributors.  All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Code generated by Microsoft (R) AutoRest Code Generator.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

import (
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/azure"
	"github.com/Azure/go-autorest/autorest/validation"
	"net/http"
)

// UsageDetailsClient is the consumption management client provides access to consumption resources for Azure
// Web-Direct subscriptions. Other subscription types which were not purchased directly through the Azure web portal
// are not supported through this preview API.
type UsageDetailsClient struct {
	ManagementClient
}

// NewUsageDetailsClient creates an instance of the UsageDetailsClient client.
func NewUsageDetailsClient(subscriptionID string) UsageDetailsClient {
	return NewUsageDetailsClientWithBaseURI(DefaultBaseURI, subscriptionID)
}

// NewUsageDetailsClientWithBaseURI creates an instance of the UsageDetailsClient client.
func NewUsageDetailsClientWithBaseURI(baseURI string, subscriptionID string) UsageDetailsClient {
	return UsageDetailsClient{NewWithBaseURI(baseURI, subscriptionID)}
}

// List lists the usage details for a scope in reverse chronological order by billing period. Usage details are
// available via this API only for January 1, 2017 or later.
//
// scope is the scope of the usage details. The scope can be '/subscriptions/{subscriptionId}' for a subscription, or
// '/subscriptions/{subscriptionId}/providers/Microsoft.Billing/invoices/{invoiceName}' for an invoice or
// '/subscriptions/{subscriptionId}/providers/Microsoft.Billing/billingPeriods/{billingPeriodName}' for a billing
// perdiod. expand is may be used to expand the additionalProperties or meterDetails property within a list of usage
// details. By default, these fields are not included when listing usage details. filter is may be used to filter
// usageDetails by usageEnd (Utc time). The filter supports 'eq', 'lt', 'gt', 'le', 'ge', and 'and'. It does not
// currently support 'ne', 'or', or 'not'. skiptoken is skiptoken is only used if a previous operation returned a
// partial result. If a previous response contains a nextLink element, the value of the nextLink element will include a
// skiptoken parameter that specifies a starting point to use for subsequent calls. top is may be used to limit the
// number of results to the most recent N usageDetails.
func (client UsageDetailsClient) List(scope string, expand string, filter string, skiptoken string, top *int32) (result UsageDetailsListResult, err error) {
	if err := validation.Validate([]validation.Validation{
		{TargetValue: top,
			Constraints: []validation.Constraint{{Target: "top", Name: validation.Null, Rule: false,
				Chain: []validation.Constraint{{Target: "top", Name: validation.InclusiveMaximum, Rule: 1000, Chain: nil},
					{Target: "top", Name: validation.InclusiveMinimum, Rule: 1, Chain: nil},
				}}}}}); err != nil {
		return result, validation.NewErrorWithValidationError(err, "consumption.UsageDetailsClient", "List")
	}

	req, err := client.ListPreparer(scope, expand, filter, skiptoken, top)
	if err != nil {
		err = autorest.NewErrorWithError(err, "consumption.UsageDetailsClient", "List", nil, "Failure preparing request")
		return
	}

	resp, err := client.ListSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		err = autorest.NewErrorWithError(err, "consumption.UsageDetailsClient", "List", resp, "Failure sending request")
		return
	}

	result, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "consumption.UsageDetailsClient", "List", resp, "Failure responding to request")
	}

	return
}

// ListPreparer prepares the List request.
func (client UsageDetailsClient) ListPreparer(scope string, expand string, filter string, skiptoken string, top *int32) (*http.Request, error) {
	pathParameters := map[string]interface{}{
		"scope": scope,
	}

	const APIVersion = "2017-04-24-preview"
	queryParameters := map[string]interface{}{
		"api-version": APIVersion,
	}
	if len(expand) > 0 {
		queryParameters["$expand"] = autorest.Encode("query", expand)
	}
	if len(filter) > 0 {
		queryParameters["$filter"] = autorest.Encode("query", filter)
	}
	if len(skiptoken) > 0 {
		queryParameters["$skiptoken"] = autorest.Encode("query", skiptoken)
	}
	if top != nil {
		queryParameters["$top"] = autorest.Encode("query", *top)
	}

	preparer := autorest.CreatePreparer(
		autorest.AsGet(),
		autorest.WithBaseURL(client.BaseURI),
		autorest.WithPathParameters("/{scope}/providers/Microsoft.Consumption/usageDetails", pathParameters),
		autorest.WithQueryParameters(queryParameters))
	return preparer.Prepare(&http.Request{})
}

// ListSender sends the List request. The method will close the
// http.Response Body if it receives an error.
func (client UsageDetailsClient) ListSender(req *http.Request) (*http.Response, error) {
	return autorest.SendWithSender(client,
		req,
		autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...))
}

// ListResponder handles the response to the List request. The method always
// closes the http.Response Body.
func (client UsageDetailsClient) ListResponder(resp *http.Response) (result UsageDetailsListResult, err error) {
	err = autorest.Respond(
		resp,
		client.ByInspecting(),
		azure.WithErrorUnlessStatusCode(http.StatusOK),
		autorest.ByUnmarshallingJSON(&result),
		autorest.ByClosing())
	result.Response = autorest.Response{Response: resp}
	return
}

// ListNextResults retrieves the next set of results, if any.
func (client UsageDetailsClient) ListNextResults(lastResults UsageDetailsListResult) (result UsageDetailsListResult, err error) {
	req, err := lastResults.UsageDetailsListResultPreparer()
	if err != nil {
		return result, autorest.NewErrorWithError(err, "consumption.UsageDetailsClient", "List", nil, "Failure preparing next results request")
	}
	if req == nil {
		return
	}

	resp, err := client.ListSender(req)
	if err != nil {
		result.Response = autorest.Response{Response: resp}
		return result, autorest.NewErrorWithError(err, "consumption.UsageDetailsClient", "List", resp, "Failure sending next results request")
	}

	result, err = client.ListResponder(resp)
	if err != nil {
		err = autorest.NewErrorWithError(err, "consumption.UsageDetailsClient", "List", resp, "Failure responding to next results request")
	}

	return
}

// ListComplete gets all elements from the list without paging.
func (client UsageDetailsClient) ListComplete(scope string, expand string, filter string, skiptoken string, top *int32, cancel <-chan struct{}) (<-chan UsageDetail, <-chan error) {
	resultChan := make(chan UsageDetail)
	errChan := make(chan error, 1)
	go func() {
		defer func() {
			close(resultChan)
			close(errChan)
		}()
		list, err := client.List(scope, expand, filter, skiptoken, top)
		if err != nil {
			errChan <- err
			return
		}
		if list.Value != nil {
			for _, item := range *list.Value {
				select {
				case <-cancel:
					return
				case resultChan <- item:
					// Intentionally left blank
				}
			}
		}
		for list.NextLink != nil {
			list, err = client.ListNextResults(list)
			if err != nil {
				errChan <- err
				return
			}
			if list.Value != nil {
				for _, item := range *list.Value {
					select {
					case <-cancel:
						return
					case resultChan <- item:
						// Intentionally left blank
					}
				}
			}
		}
	}()
	return resultChan, errChan
}