package resolvers

import (
	"context"
	"fmt"
	"github.com/authorizerdev/authorizer/server/db"
	"github.com/authorizerdev/authorizer/server/graph/model"
	"github.com/authorizerdev/authorizer/server/refs"
	log "github.com/sirupsen/logrus"
	"strings"
)

// IsRegisteredResolver is a resolver for registered checkup query
func IsRegisteredResolver(ctx context.Context, email string) (*model.Response, error) {
	// Initialize the response object
	res := &model.Response{}
	res.Message = ""

	// Convert email to lowercase
	email = strings.ToLower(strings.TrimSpace(refs.StringValue(&email)))
	if email == "" {
		log.Debug("Email is required")
		return res, fmt.Errorf("email is required")
	}

	// Initialize logger with a field
	log := log.WithField("email", email)

	// Find user with email
	existingUser, err := db.Provider.GetUserByEmail(ctx, email)
	if err != nil {
		log.Debug("Failed to get user by email: ", err)
	} else {
		log.Debug("Found user by email: ", existingUser)
		if existingUser != nil {
		    if existingUser.SignupMethods == "magic_link_login" {
		        res.Message = "registered"
		    } else if existingUser.EmailVerifiedAt != nil {
		        res.Message = "verified"
		        log.Debug("Email is already verified and signed up.")
		        return res, nil
		    } else if existingUser.ID != "" && existingUser.EmailVerifiedAt == nil {
		        res.Message = "not verified"
		        log.Debug("Email is already signed up. Verification pending...")
		        return res, nil
		    } else {
		        res.Message = "unknown"
		        log.Debug("Unknown signup method.")
		        return res, nil
		    }
		}
	}

	return res, nil
}