package bot

import (
	"fmt"
	"os"
	"strconv"
	"strings"

	"git.dev.m-and-m.ovh/mderasse/tesla/api"
)

var specialChars = []string{
	"\\",
	"_",
	"*",
	"[",
	"]",
	"(",
	")",
	"~",
	"`",
	">",
	"<",
	"&",
	"#",
	"+",
	"-",
	"=",
	"|",
	"{",
	"}",
	".",
	"!",
	"(",
	")",
}

var carFilter api.AvailabilityQueryParams = api.AvailabilityQueryParams{
	Model:     "my",
	Condition: "new",
	Options: api.OptionsParams{
		Trim: []string{"SRRWD", "LRAWD"},
	},
	Arrangeby:   "Price",
	Order:       "asc",
	Market:      "FR",
	Language:    "fr",
	SuperRegion: "north america",
	Lng:         3.0511,
	Lat:         50.624,
	Zip:         "59100",
	Range:       0,
	Region:      "FR",
}

// botConfig contain configuration for the telegram bot.
type botConfig struct {
	AlertChatIds     []int64
	BotName          string
	WhiteListChatIds []int64
	Token            string
}

func initBotConfig() (*botConfig, error) {
	alertChatIdsArrStr := strings.Split(os.Getenv("TELEGRAM_ALERT_CHAT_IDS"), ",")
	whitelistChatIdsArrStr := strings.Split(os.Getenv("TELEGRAM_WHITELIST_CHAT_IDS"), ",")
	botName := os.Getenv("TELEGRAM_BOT_NAME")
	token := os.Getenv("TELEGRAM_TOKEN")

	// FOR DEV
	// botName = "M_AND_M_Test_bot"
	// token = "6273217607:AAGvMIU6bpc7xFWKDhd4llPH6f9zhgUzirs"
	// alertChatIdsArrStr = []string{"648385994", "-894368809", "-893895409"}
	// whitelistChatIdsArrStr = []string{"648385994", "-894368809", "-893895409"}

	if len(alertChatIdsArrStr) == 0 {
		return nil, fmt.Errorf("missing TELEGRAM_ALERT_CHAT_IDS environment variable")
	}

	if len(whitelistChatIdsArrStr) == 0 {
		return nil, fmt.Errorf("missing TELEGRAM_WHITELIST_CHAT_IDS environment variable")
	}

	if botName == "" {
		return nil, fmt.Errorf("missing TELEGRAM_BOT_NAME environment variable")
	}

	if token == "" {
		return nil, fmt.Errorf("missing TELEGRAM_TOKEN environment variable")
	}

	config := botConfig{
		AlertChatIds:     []int64{},
		BotName:          botName,
		Token:            token,
		WhiteListChatIds: []int64{},
	}

	for _, chatIdStr := range alertChatIdsArrStr {
		chatId, err := strconv.ParseInt(chatIdStr, 10, 64)
		if err != nil {
			return nil, fmt.Errorf("impossible to use TELEGRAM_ALERT_CHAT_IDS. format expected: int64,int64")
		}

		config.AlertChatIds = append(config.AlertChatIds, chatId)
	}

	for _, chatIdStr := range whitelistChatIdsArrStr {
		chatId, err := strconv.ParseInt(chatIdStr, 10, 64)
		if err != nil {
			return nil, fmt.Errorf("impossible to use TELEGRAM_WHITELIST_CHAT_IDS. format expected: int64,int64")
		}

		config.WhiteListChatIds = append(config.WhiteListChatIds, chatId)
	}

	return &config, nil
}