/*
    Copyright (c) 2016 VMware, Inc. All Rights Reserved.
    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 config

import (
	"fmt"
	"os"
	"strconv"

	"github.com/vmware/harbor/utils/log"
)

const defaultMaxWorkers int = 10

var maxJobWorkers int
var localURL string
var logDir string
var uiSecret string

func init() {
	maxWorkersEnv := os.Getenv("MAX_JOB_WORKERS")
	maxWorkers64, err := strconv.ParseInt(maxWorkersEnv, 10, 32)
	maxJobWorkers = int(maxWorkers64)
	if err != nil {
		log.Warningf("Failed to parse max works setting, error: %v, the default value: %d will be used", err, defaultMaxWorkers)
		maxJobWorkers = defaultMaxWorkers
	}

	localURL = os.Getenv("HARBOR_URL")
	if len(localURL) == 0 {
		localURL = "http://registry:5000/"
	}

	logDir = os.Getenv("LOG_DIR")
	if len(logDir) == 0 {
		logDir = "/var/log"
	}

	f, err := os.Open(logDir)
	defer f.Close()
	if err != nil {
		panic(err)
	}
	finfo, err := f.Stat()
	if err != nil {
		panic(err)
	}
	if !finfo.IsDir() {
		panic(fmt.Sprintf("%s is not a direcotry", logDir))
	}

	uiSecret = os.Getenv("UI_SECRET")
	if len(uiSecret) == 0 {
		panic("UI Secret is not set")
	}

	log.Debugf("config: maxJobWorkers: %d", maxJobWorkers)
	log.Debugf("config: localHarborURL: %s", localURL)
	log.Debugf("config: logDir: %s", logDir)
	log.Debugf("config: uiSecret: ******")
}

// MaxJobWorkers ...
func MaxJobWorkers() int {
	return maxJobWorkers
}

// LocalHarborURL returns the local registry url, job service will use this URL to pull manifest and repository.
func LocalHarborURL() string {
	return localURL
}

// LogDir returns the absolute path to which the log file will be written
func LogDir() string {
	return logDir
}

// UISecret will return the value of secret cookie for jobsevice to call UI API.
func UISecret() string {
	return uiSecret
}