// Copyright 2017 Istio 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 perf

import (
	"istio.io/istio/mixer/pkg/adapter"
	"istio.io/istio/mixer/pkg/template"
)

// Env is the perf test execution environment. This is typically used to hold available templates and adapters.
type Env struct {
	templates map[string]template.Info
	adapters  []adapter.InfoFn
}

// NewEnv creates a new instance of Env.
func NewEnv(templates map[string]template.Info, adapters []adapter.InfoFn) *Env {
	return &Env{
		templates: templates,
		adapters:  adapters,
	}
}

func (env *Env) findTemplate(name string) (template.Info, bool) {
	t, f := env.templates[name]
	return t, f
}

func (env *Env) findAdapter(name string) (adapter.InfoFn, bool) {
	for _, a := range env.adapters {
		if a().Name == name {
			return a, true
		}
	}

	return nil, false
}
