package regionimgroup

import (
	"context"
	"errors"
	"net/http"
	"strings"

	"chatapp3-golang/internal/model"

	"gorm.io/gorm"
)

func (s *Service) resolveUserRegion(ctx context.Context, sysOrigin string, userID int64) (string, error) {
	var user model.UserBaseInfo
	err := s.db.WithContext(ctx).Where("id = ?", userID).First(&user).Error
	if errors.Is(err, gorm.ErrRecordNotFound) {
		return "", NewAppError(http.StatusBadRequest, "voice_room_region_missing", "user region is missing")
	}
	if err != nil {
		return "", err
	}
	countryCode := strings.ToUpper(strings.TrimSpace(user.CountryCode))
	if countryCode == "" {
		return "", NewAppError(http.StatusBadRequest, "voice_room_region_missing", "user country code is missing")
	}

	var mapping model.VoiceRoomRegionCountry
	err = s.db.WithContext(ctx).
		Where("sys_origin = ? AND country_code = ? AND enabled = ?", sysOrigin, countryCode, true).
		First(&mapping).Error
	if errors.Is(err, gorm.ErrRecordNotFound) {
		return countryCode, nil
	}
	if err != nil {
		return "", err
	}
	regionCode := strings.ToUpper(strings.TrimSpace(mapping.RegionCode))
	if regionCode == "" {
		return countryCode, nil
	}
	return regionCode, nil
}