package graphql

import (
	"github.com/Nerzal/gocloak/v12"
	"github.com/gshopify/service-wrapper/model"
	"github.com/gshopify/service-wrapper/scalar"
	"gshopper.com/gshopify/customer/graphql/generated"
	"strings"
)

func User2Customer(user *gocloak.User) *generated.Customer {
	if user == nil {
		return nil
	}

	customer := &generated.Customer{
		ID:        *user.ID,
		Email:     user.Email,
		FirstName: user.FirstName,
		LastName:  user.LastName,
		CreatedAt: scalar.DateTime(0),
		UpdatedAt: scalar.DateTime(0),
	}

	customer.DisplayName = func(u *gocloak.User) string {
		if u == nil {
			return ""
		}

		if u.FirstName != nil || u.LastName != nil {
			n := strings.Builder{}
			if u.FirstName != nil && *u.FirstName != "" {
				n.WriteString(*u.FirstName)
			}

			if u.LastName != nil || *u.LastName != "" {
				n.WriteString(" ")
				n.WriteString(*u.LastName)
			}

			return n.String()
		}

		return *u.Email
	}(user)

	if user.Attributes != nil {
		for s, values := range *user.Attributes {
			var meta *generated.Metafield

			if len(values) < 1 {
				continue
			}

			switch s {
			case "phone_number":
				meta = NewMetafield(s, values[0], model.MetaFieldTypeSingleLineTextField)
				customer.Phone = gocloak.StringP(values[0])
			case "phone_region":
				meta = NewMetafield(s, values[0], model.MetaFieldTypeSingleLineTextField)
			case "phone_verified":
				meta = NewMetafield(s, values[0], model.MetaFieldTypeBoolean)
			case "created_at":
				_ = customer.CreatedAt.UnmarshalGQL(values[0])
				meta = NewMetafield(s, values[0], model.MetaFieldTypeDateTime)
			case "updated_at":
				_ = customer.UpdatedAt.UnmarshalGQL(values[0])
				meta = NewMetafield(s, values[0], model.MetaFieldTypeDateTime)
			case "accepts_marketing":
				customer.AcceptsMarketing = values[0] == "true"
				meta = NewMetafield(s, values[0], model.MetaFieldTypeBoolean)
			default:
				continue
			}

			customer.Metafields = append(customer.Metafields, meta)
		}
	}

	return customer
}