package config

import (
	"encoding/json"
	"io"
	"os"
	"time"
)

var Cfg *Config

type Config struct {
	ServerIP         string        `json:"SERVER_IP"`
	DBPath           string        `json:"DB_PATH"`
	TemplatesPath    string        `json:"TEMPLATES_PATH"`
	GcssPath         string        `json:"GCSS_PATH"`
	TgBotToken       string        `json:"TG_BOT_TOKEN"`
	TgChatID         string        `json:"TG_CHAT_ID"`
	LastfmAPIKey     string        `json:"LASTFM_API_KEY"`
	LastFmUsername   string        `json:"LASTFM_USERNAME"`
	CookieCryptKey   string        `json:"COOKIE_CRYPT_KEY"`
	CookieHMAC       string        `json:"COOKIE_HMAC"`
	SessionKey       string        `json:"SESSION_KEY"`
	SessionTime      int           `json:"SESSION_TIME_HOURS"`
	TgTickerTime     time.Duration `json:"TG_TICKER_TIME_HOURS"`
	LastFmTickerTime time.Duration `json:"LASTFM_TICKER_TIME_SECONDS"`
	MaxPostsOnPage   int           `json:"MAX_POSTS_ON_PAGE"`
}

func LoadConfig(filename string) error {
	file, err := os.Open(filename)
	if err != nil {
		return err
	}
	defer file.Close()

	data, err := io.ReadAll(file)
	if err != nil {
		return err
	}

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

	Cfg = &config
	return nil
}