// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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 redis

import (
	"fmt"
	"time"

	"github.com/elastic/beats/v7/libbeat/common/transport"
	"github.com/elastic/beats/v7/libbeat/common/transport/tlscommon"
	"github.com/elastic/beats/v7/libbeat/outputs/codec"
)

type redisConfig struct {
	Password    string                `config:"password"`
	Index       string                `config:"index"`
	Key         string                `config:"key"`
	LoadBalance bool                  `config:"loadbalance"`
	Timeout     time.Duration         `config:"timeout"`
	BulkMaxSize int                   `config:"bulk_max_size"`
	MaxRetries  int                   `config:"max_retries"`
	TLS         *tlscommon.Config     `config:"ssl"`
	Proxy       transport.ProxyConfig `config:",inline"`
	Codec       codec.Config          `config:"codec"`
	Db          int                   `config:"db"`
	DataType    string                `config:"datatype"`
	Backoff     backoff               `config:"backoff"`
}

type backoff struct {
	Init time.Duration
	Max  time.Duration
}

var (
	defaultConfig = redisConfig{
		LoadBalance: true,
		Timeout:     5 * time.Second,
		BulkMaxSize: 2048,
		MaxRetries:  3,
		TLS:         nil,
		Db:          0,
		DataType:    "list",
		Backoff: backoff{
			Init: 1 * time.Second,
			Max:  60 * time.Second,
		},
	}
)

func (c *redisConfig) Validate() error {
	switch c.DataType {
	case "", "list", "channel":
	default:
		return fmt.Errorf("redis data type %v not supported", c.DataType)
	}

	return nil
}
