package config

import (
	"io"
	"log"
	"os"

	"github.com/BurntSushi/toml"
)

type DbConfig struct {
	Dialect        string `toml:"dialect"`
	Username       string `toml:"username"`
	PasswordSecret string `toml:"password-secret"`
	Url            string `toml:"url"`
	Port           string `toml:"port"`
	Name           string `toml:"name"`
}

type StackConfiguration struct {
	ConfigLoaded bool

	AllowFreshAdminGeneration bool     `toml:"gen-fresh-admin"`
	AdminEmails               []string `toml:"admin-emails"`
	AdminHmacEnv              string   `toml:"admin-hmac-env"`
	UserHmacEnv               string   `toml:"user-hmac-env"`
	AuthedRateLimitConfig     string   `toml:"auth-rate-limit-defs"`
	UnauthedRateLimitConfig   string   `toml:"unauth-rate-limit-defs"`

	Db DbConfig `toml:"db"`
}

var Environment = os.Getenv("STACK_ENVIRONMENT")

var configInternal = StackConfiguration{}

func Config() StackConfiguration {
	return configInternal
}

func GetConfigPath(filename string) string {
	if Environment == "" {
		Environment = "dev"
	}
	return "config/" + Environment + "/" + filename
}

func LoadConfig() {
	file, err := os.Open(GetConfigPath("conf.toml"))
	if err != nil {
		panic(err)
	}
	defer file.Close()

	b, err := io.ReadAll(file)
	if err != nil {
		panic(err)
	}

	err = toml.Unmarshal(b, &configInternal)
	if err != nil {
		panic(err)
	}

	configInternal.ConfigLoaded = true

	log.Printf("Loaded Config for stack '%s':\n%+v\n", Environment, configInternal)
}