package config

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

type Config struct {
	Server   ServerConfig
	Redis    RedisConfig
	Services ServicesConfig
}

type ServerConfig struct {
	Port int
}

type RedisConfig struct {
	Addr     string
	Password string
	DB       int
}

type ServicesConfig struct {
	UserService UserServiceConfig
}

type UserServiceConfig struct {
	Addr string
}

func Load() (*Config, error) {
	viper.SetConfigName("config")
	viper.SetConfigType("yaml")
	viper.AddConfigPath("./config")
	viper.AddConfigPath("../config")
	viper.AddConfigPath("../../config")

	viper.SetDefault("server.port", 8000)
	viper.SetDefault("redis.addr", "backend-redis:6379")
	viper.SetDefault("redis.password", "")
	viper.SetDefault("redis.db", 0)
	viper.SetDefault("services.userService.addr", "backend-user-svc:9000")

	if err := viper.ReadInConfig(); err != nil {
		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
			return nil, err
		}
	}

	var config Config
	if err := viper.Unmarshal(&config); err != nil {
		return nil, err
	}

	return &config, nil
}