/*
 * Copyright 2021 PingCAP, Inc.
 *
 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package config

import (
	"io/ioutil"

	"github.com/pingcap/log"
	"go.uber.org/zap"
	"gopkg.in/yaml.v2"
)

var (
	Options AppOptions
)

func InitOption(cfgPath string) error {
	b, err := ioutil.ReadFile(cfgPath)
	if err != nil {
		log.Error("read file", zap.Error(err))
		return err
	}
	if err := yaml.Unmarshal(b, &Options); err != nil {
		log.Error("unmarshal yaml file", zap.Error(err), zap.String("content", string(b)))
		return err
	}
	Options.FillWithDefaults()
	return Options.Validate()
}