mysql-bkup/pkg/config.go

// Package pkg /
/*****
@author    Jonas Kaninda
@license   MIT License <https://opensource.org/licenses/MIT>
@Copyright © 2024 Jonas Kaninda
**/
package pkg

import (
	"fmt"
	"github.com/jkaninda/mysql-bkup/utils"
	"github.com/spf13/cobra"
	"os"
	"time"
)

type Config struct {
}

type dbConfig struct {
	dbHost     string
	dbPort     string
	dbName     string
	dbUserName string
	dbPassword string
}
type targetDbConfig struct {
	targetDbHost     string
	targetDbPort     string
	targetDbUserName string
	targetDbPassword string
	targetDbName     string
}

type BackupConfig struct {
	backupFileName     string
	backupRetention    int
	disableCompression bool
	prune              bool
	encryption         bool
	remotePath         string
	gpqPassphrase      string
	storage            string
	cronExpression     string
}
type RestoreConfig struct {
	s3Path        string
	remotePath    string
	storage       string
	file          string
	bucket        string
	gpqPassphrase string
}

func initDbConfig(cmd *cobra.Command) *dbConfig {
	//Set env
	utils.GetEnv(cmd, "dbname", "DB_NAME")
	dConf := dbConfig{}
	dConf.dbHost = os.Getenv("DB_HOST")
	dConf.dbPort = os.Getenv("DB_PORT")
	dConf.dbName = os.Getenv("DB_NAME")
	dConf.dbUserName = os.Getenv("DB_USERNAME")
	dConf.dbPassword = os.Getenv("DB_PASSWORD")

	err := utils.CheckEnvVars(dbHVars)
	if err != nil {
		utils.Error("Please make sure all required environment variables for database are set")
		utils.Fatal("Error checking environment variables: %s", err)
	}
	return &dConf
}
func initBackupConfig(cmd *cobra.Command) *BackupConfig {
	utils.SetEnv("STORAGE_PATH", storagePath)
	utils.GetEnv(cmd, "period", "BACKUP_CRON_EXPRESSION")

	//Get flag value and set env
	remotePath := utils.GetEnv(cmd, "path", "SSH_REMOTE_PATH")
	storage = utils.GetEnv(cmd, "storage", "STORAGE")
	backupRetention, _ := cmd.Flags().GetInt("keep-last")
	prune, _ := cmd.Flags().GetBool("prune")
	disableCompression, _ = cmd.Flags().GetBool("disable-compression")
	_, _ = cmd.Flags().GetString("mode")
	gpqPassphrase := os.Getenv("GPG_PASSPHRASE")
	_ = utils.GetEnv(cmd, "path", "AWS_S3_PATH")
	cronExpression := os.Getenv("BACKUP_CRON_EXPRESSION")

	if gpqPassphrase != "" {
		encryption = true
	}
	//Generate file name
	backupFileName := fmt.Sprintf("%s_%s.sql.gz", dbConf.dbName, time.Now().Format("20240102_150405"))
	if disableCompression {
		backupFileName = fmt.Sprintf("%s_%s.sql", dbConf.dbName, time.Now().Format("20240102_150405"))
	}

	//Initialize backup configs
	config := BackupConfig{}
	config.backupFileName = backupFileName
	config.backupRetention = backupRetention
	config.disableCompression = disableCompression
	config.prune = prune
	config.storage = storage
	config.encryption = encryption
	config.remotePath = remotePath
	config.gpqPassphrase = gpqPassphrase
	config.cronExpression = cronExpression
	return &config
}
func initRestoreConfig(cmd *cobra.Command) *RestoreConfig {
	utils.SetEnv("STORAGE_PATH", storagePath)

	//Get flag value and set env
	s3Path := utils.GetEnv(cmd, "path", "AWS_S3_PATH")
	remotePath := utils.GetEnv(cmd, "path", "SSH_REMOTE_PATH")
	storage = utils.GetEnv(cmd, "storage", "STORAGE")
	file = utils.GetEnv(cmd, "file", "FILE_NAME")
	_, _ = cmd.Flags().GetString("mode")
	bucket := utils.GetEnvVariable("AWS_S3_BUCKET_NAME", "BUCKET_NAME")
	gpqPassphrase := os.Getenv("GPG_PASSPHRASE")
	//Initialize restore configs
	rConfig := RestoreConfig{}
	rConfig.s3Path = s3Path
	rConfig.remotePath = remotePath
	rConfig.storage = storage
	rConfig.bucket = bucket
	rConfig.file = file
	rConfig.storage = storage
	rConfig.gpqPassphrase = gpqPassphrase
	return &rConfig
}
func initTargetDbConfig() *targetDbConfig {
	tdbConfig := targetDbConfig{}
	tdbConfig.targetDbHost = os.Getenv("TARGET_DB_HOST")
	tdbConfig.targetDbPort = os.Getenv("TARGET_DB_PORT")
	tdbConfig.targetDbName = os.Getenv("TARGET_DB_NAME")
	tdbConfig.targetDbUserName = os.Getenv("TARGET_DB_USERNAME")
	tdbConfig.targetDbPassword = os.Getenv("TARGET_DB_PASSWORD")

	err := utils.CheckEnvVars(tdbRVars)
	if err != nil {
		utils.Error("Please make sure all required environment variables for the target database are set")
		utils.Fatal("Error checking target database environment variables: %s", err)
	}
	return &tdbConfig
}