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// -
// ========================LICENSE_START=================================
// Copyright (C) 2024: Deutsche Telekom
//
// 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.
// SPDX-License-Identifier: Apache-2.0
// ========================LICENSE_END===================================
//
// Handles an HTTP request to fetch the current system statistics.
// It aggregates various decision counts (e.g., indeterminate, permit, deny)
// and error counts into a structured response and sends it back to the client in JSON format.
package metrics
import (
"encoding/json"
"net/http"
"policy-opa-pdp/pkg/log"
"policy-opa-pdp/pkg/model/oapicodegen"
"policy-opa-pdp/pkg/utils"
"github.com/google/uuid"
openapi_types "github.com/oapi-codegen/runtime/types"
)
func FetchCurrentStatistics(res http.ResponseWriter, req *http.Request) {
requestId := req.Header.Get("X-ONAP-RequestID")
var parsedUUID *uuid.UUID
var statisticsParams *oapicodegen.StatisticsParams
if requestId != "" && utils.IsValidUUID(requestId) {
tempUUID, err := uuid.Parse(requestId)
if err != nil {
log.Warnf("Error Parsing the requestID: %v", err)
} else {
parsedUUID = &tempUUID
statisticsParams = &oapicodegen.StatisticsParams{
XONAPRequestID: (*openapi_types.UUID)(parsedUUID),
}
res.Header().Set("X-ONAP-RequestID", statisticsParams.XONAPRequestID.String())
}
} else {
log.Warnf("Invalid or Missing Request ID")
requestId = "000000000000"
res.Header().Set("X-ONAP-RequestID", requestId)
}
var statReport oapicodegen.StatisticsReport
statReport.IndeterminantDecisionsCount = IndeterminantDecisionsCountRef()
statReport.PermitDecisionsCount = PermitDecisionsCountRef()
statReport.DenyDecisionsCount = DenyDecisionsCountRef()
statReport.TotalErrorCount = TotalErrorCountRef()
statReport.QuerySuccessCount = TotalQuerySuccessCountRef()
statReport.QueryFailureCount = TotalQueryFailureCountRef()
// not implemented hardcoding the values to zero
// will be implemeneted in phase-2
zerovalue := int64(0)
onevalue := int64(1)
statReport.TotalPoliciesCount = &zerovalue
statReport.TotalPolicyTypesCount = &onevalue
statReport.DeployFailureCount = &zerovalue
statReport.DeploySuccessCount = &zerovalue
statReport.UndeployFailureCount = &zerovalue
statReport.UndeploySuccessCount = &zerovalue
value := int32(200)
statReport.Code = &value
res.Header().Set("Content-Type", "application/json")
res.WriteHeader(http.StatusOK)
json.NewEncoder(res).Encode(statReport)
}
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