package main

import (
	"fmt"
	"os"
	"strings"

	logger "git.site.quack-lab.dev/dave/cylogger"
	"github.com/joho/godotenv"
)

var options Options

func init() {
	var err error
	options, err = LoadOptions()
	if err != nil {
		logger.Error("Failed to load options %v", err)
		return
	}
}

type Options struct {
	ClientID    string
	RedirectURI string
	Scopes      []string
	DBPath      string
	Port        string
}

func LoadOptions() (Options, error) {
	// Load environment variables strictly from .env file (fail if there's an error loading)
	if err := godotenv.Load(); err != nil {
		return Options{}, fmt.Errorf("error loading .env file: %w", err)
	}

	clientID := os.Getenv("ESI_CLIENT_ID")
	if clientID == "" {
		return Options{}, fmt.Errorf("ESI_CLIENT_ID is required in .env file")
	}
	redirectURI := os.Getenv("ESI_REDIRECT_URI")
	if redirectURI == "" {
		return Options{}, fmt.Errorf("ESI_REDIRECT_URI is required in .env file")
	}
	rawScopes := os.Getenv("ESI_SCOPES")
	if rawScopes == "" {
		return Options{}, fmt.Errorf("ESI_SCOPES is required in .env file")
	}
	scopes := strings.Fields(rawScopes)
	dbPath := os.Getenv("DB_PATH")
	if dbPath == "" {
		return Options{}, fmt.Errorf("DB_PATH is required in .env file")
	}
	port := os.Getenv("HTTP_SERVER_PORT")
	if port == "" {
		return Options{}, fmt.Errorf("HTTP_SERVER_PORT is required in .env file")
	}

	return Options{
		ClientID:    clientID,
		RedirectURI: redirectURI,
		Scopes:      scopes,
		DBPath:      dbPath,
		Port:        port,
	}, nil
}