// Copyright 2023 The etcd Authors
//
// 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.

package validate

import (
	"testing"

	"github.com/anishathalye/porcupine"
	"go.uber.org/zap"

	"go.etcd.io/etcd/tests/v3/robustness/model"
	"go.etcd.io/etcd/tests/v3/robustness/traffic"
)

// ValidateAndReturnVisualize return visualize as porcupine.linearizationInfo used to generate visualization is private.
func ValidateAndReturnVisualize(t *testing.T, lg *zap.Logger, cfg Config, reports []traffic.ClientReport) (visualize func(basepath string)) {
	validateWatch(t, cfg, reports)
	// TODO: Validate stale reads responses.
	allOperations := operations(reports)
	watchEvents := uniqueWatchEvents(reports)
	newOperations := patchOperationsWithWatchEvents(allOperations, watchEvents)
	return validateOperationHistoryAndReturnVisualize(t, lg, newOperations)
}

func operations(reports []traffic.ClientReport) []porcupine.Operation {
	var ops []porcupine.Operation
	for _, r := range reports {
		ops = append(ops, r.OperationHistory.Operations()...)
	}
	return ops
}

func uniqueWatchEvents(reports []traffic.ClientReport) map[model.EtcdOperation]traffic.TimedWatchEvent {
	persisted := map[model.EtcdOperation]traffic.TimedWatchEvent{}
	for _, r := range reports {
		for _, resp := range r.Watch {
			for _, event := range resp.Events {
				persisted[event.Op] = traffic.TimedWatchEvent{Time: resp.Time, WatchEvent: event}
			}
		}
	}
	return persisted
}

type Config struct {
	ExpectRevisionUnique bool
}