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path: root/crawler/config.go
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package main

import (
	"github.com/spf13/viper"
)

type Config struct {
	DBDriver          string
	DBDBName          string
	DBHost            string
	DBPort            string
	DBUser            string
	DBPassword        string
	DBOptions         string
	DBPath            string // for sqlite
	DisableURLShorter bool
	Polr_URL          string
	Polr_API_Key      string

	Debug bool
}

// Parses the configuration and sets the configuration struct.
func (c *Config) parseConfig(configFile string) {

	viper.SetDefault("DB_Driver", "mysql")
	viper.SetDefault("DB_DBName", "alkobote")
	viper.SetDefault("DB_Host", "localhost")
	viper.SetDefault("DB_Port", "3306")

	viper.SetDefault("DB_Path", "./alkobote.db")

	viper.SetDefault("Debug", false)
	viper.SetDefault("DisableURLShorter", false)

	// Name of the configuration file
	viper.SetConfigName("config")

	// Where to find the config file
	if configFile == "" {
		viper.AddConfigPath("/etc/alkobote.de/")
		viper.AddConfigPath(".")
		viper.AddConfigPath("$HOME/.config/alkobote.de/")
		viper.AddConfigPath("$HOME/alkobote.de/")
	} else {
		viper.AddConfigPath(configFile)
	}

	// Env variables need to be prefixed with "ALKOBOTE_"
	viper.SetEnvPrefix("ALKOBOTE")

	// Parses automatic the matching env variables
	viper.AutomaticEnv()

	// Reads the config
	err := viper.ReadInConfig()
	if err != nil {
		Fatal(err, "Config: Error parsing config file.")
	}

	c.setsConfig()
}

// Actually sets the config struct
func (c *Config) setsConfig() {
	c.DBDriver = viper.GetString("DB_Driver")
	c.DBHost = viper.GetString("DB_Host")
	c.DBPort = viper.GetString("DB_Port")
	c.DBUser = viper.GetString("DB_User")
	c.DBPassword = viper.GetString("DB_Password")
	c.DBDBName = viper.GetString("DB_DBName")
	c.DBOptions = viper.GetString("DB_Options")
	c.DBPath = viper.GetString("DB_Path")
	c.Debug = viper.GetBool("Debug")
	c.DisableURLShorter = viper.GetBool("DisableURLShorter")
	c.Polr_URL = viper.GetString("Polr_URL")
	c.Polr_API_Key = viper.GetString("Polr_API_Key")
}