package config

import (
	"fmt"
	"log/slog"
	"strings"

	"github.com/spf13/viper"
)

var (
	CfgFile    string
	Verbose    int
	Overwrite  bool
	ServerName string
	Config     CliConfig
)

type Server struct {
	Url      string `mapstructure:"url"`
	Username string `mapstructure:"username"`
	Password string `mapstructure:"password"`
}

type CliConfig struct {
	ApiVersion string
	Server     map[string]Server `mapstructure:"server"`
}

func InitCliConfig() {
	slog.Info("InitCliConfig")
	if CfgFile != "" {
		viper.SetConfigFile(CfgFile)
	} else {
		viper.SetConfigName("kli") // without extension
		viper.SetConfigType("yaml")
		viper.AddConfigPath(".") // look for config in working directory
		viper.AddConfigPath("/home/tpeetz/.config")
	}

	// Read the configuration file
	if err := viper.ReadInConfig(); err != nil {
		// Handle the case where config file is not found
		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
			slog.Info("No config file found, using defaults")
			if err := viper.SafeWriteConfig(); err != nil {
				slog.Info("error writing config file", "error", err.Error())
			}
		} else {
			slog.Info("error reading config file", "error", err.Error())
		}
	} else {
		slog.Info("initConfig", "Using config file: ", viper.ConfigFileUsed())
		if err := viper.Unmarshal(&Config); err != nil {
			slog.Info("parsing of config file failed", "error", err.Error())
		}
	}
}

func InitConfig() error {
	viper.SetDefault("db.host", "localhost")
	viper.SetDefault("db.port", 5432)
	viper.SetDefault("db.name", "kontor")
	viper.SetDefault("db.user", "kontor")
	viper.SetDefault("db.password", "kontor")
	viper.SetDefault("port", 8550)
	viper.SetDefault("gin.mode", "release")

	viper.SetConfigName("kontor-gin")
	viper.SetConfigType("yaml")
	viper.AddConfigPath(".")
	viper.AddConfigPath("/home/tpeetz/.config")
	viper.AddConfigPath("/etc/kontor")
	viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
	viper.AutomaticEnv()

	// Read the config file
	if err := viper.ReadInConfig(); err != nil {
		// Handle the case where config file is not found
		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
			slog.Info("No config file found, using defaults")
			if err := viper.SafeWriteConfig(); err != nil {
				slog.Info("error writing config file", "error", err.Error())
				return fmt.Errorf("error writing config file: %w", err)
			}
		} else {
			return fmt.Errorf("error reading config file: %w", err)
		}
	} else {
		slog.Info("initConfig", "Using config file: ", viper.ConfigFileUsed())
	}

	return nil
}