package gorm

import (
	"fmt"

	"github.com/jinzhu/gorm/schema"
)

// Association Mode contains some helper methods to handle relationship things easily.
type Association struct {
	DB           *DB
	Relationship *schema.Relationship
	Error        error
}

func (db *DB) Association(column string) *Association {
	association := &Association{DB: db}

	if err := db.Statement.Parse(db.Statement.Model); err == nil {
		association.Relationship = db.Statement.Schema.Relationships.Relations[column]

		if association.Relationship == nil {
			association.Error = fmt.Errorf("%w: %v", ErrUnsupportedRelation, column)
		}
	} else {
		association.Error = err
	}

	return association
}

func (association *Association) Find(out interface{}, conds ...interface{}) error {
	if association.Error == nil {
		for _, ref := range association.Relationship.References {
			if ref.OwnPrimaryKey {
			}
		}
	}

	return association.Error
}

func (association *Association) Append(values ...interface{}) error {
	return association.Error
}

func (association *Association) Replace(values ...interface{}) error {
	return association.Error
}

func (association *Association) Delete(values ...interface{}) error {
	return association.Error
}

func (association *Association) Clear() error {
	return association.Error
}

func (association *Association) Count() int {
	return 0
}