package tests_test

import (
	"testing"

	"gorm.io/gorm"
	. "gorm.io/gorm/utils/tests"
)

func TestUpdateMany2ManyAssociations(t *testing.T) {
	user := *GetUser("update-many2many", Config{})

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	user.Languages = []Language{{Code: "zh-CN", Name: "Chinese"}, {Code: "en", Name: "English"}}
	for _, lang := range user.Languages {

	}

	// Append
	languages1 := []Language{
		{Code: "language-many2many-append-1", Name: "language-many2many-append-1"},
	}
	languages2 := []Language{}
	languages3 := []Language{
		{Code: "language-many2many-append-3-1", Name: "language-many2many-append-3-1"},
		{Code: "language-many2many-append-3-2", Name: "language-many2many-append-3-2"},
	}
	DB.Create(&languages1)
	DB.Create(&languages3)

		Subject    string
		Body       string
		Tags       []Tag `gorm:"many2many:blog_tags;"`
		SharedTags []Tag `gorm:"many2many:shared_blog_tags;ForeignKey:id;References:id"`
		LocaleTags []Tag `gorm:"many2many:locale_blog_tags;ForeignKey:id,locale;References:id"`
	}

	checkStructRelation(t, &Blog{},
		Relation{
			Name: "Tags", Type: schema.Many2Many, Schema: "Blog", FieldSchema: "Tag",

		Level1 struct {
			ID    uint
			Value string
		}
		Level2 struct {
			ID      uint
			Value   string
			Level1s []*Level1 `gorm:"many2many:level1_level2;"`
		}
		Level3 struct {
			ID      uint
			Value   string
			Level2s []Level2 `gorm:"many2many:level2_level3;"`
		}
	)

	DB.Migrator().DropTable(&Level3{}, &Level2{}, &Level1{}, "level1_level2", "level2_level3")

	CompanyID *int
	Company   Company
	ManagerID *uint
	Manager   *User
	Team      []User     `gorm:"foreignkey:ManagerID"`
	Languages []Language `gorm:"many2many:UserSpeak;"`
	Friends   []*User    `gorm:"many2many:user_friends;"`
	Active    bool
}

type Account struct {
	gorm.Model
	UserID sql.NullInt64
	Number string
}

type Pet struct {
	gorm.Model
	UserID *uint

		t.Errorf("Failed to create got error %v", err)
	}
}

func TestEmbeddedRelations(t *testing.T) {
	type EmbUser struct {
		gorm.Model
		Name      string
		Age       uint
		Languages []Language `gorm:"many2many:EmbUserSpeak;"`
	}

	type AdvancedUser struct {
		EmbUser  `gorm:"embedded"`
		Advanced bool
	}

	DB.Migrator().DropTable(&AdvancedUser{})

	ID         uuid.UUID `gorm:"primary_key;type:uuid;default:uuid_generate_v4();"`
	Title      string
	Categories []*Category `gorm:"Many2Many:post_categories"`
}

type Category struct {
	ID    uuid.UUID `gorm:"primary_key;type:uuid;default:uuid_generate_v4();"`
	Title string
	Posts []*Post `gorm:"Many2Many:post_categories"`
}

func TestMany2ManyWithDefaultValueUUID(t *testing.T) {
	if DB.Dialector.Name() != "postgres" {

					}

					saveAssociations(db, rel, elems, selectColumns, restricted, assignmentColumns)
				}
			}

			// Save Many2Many associations
			for _, rel := range db.Statement.Schema.Relationships.Many2Many {
				if v, ok := selectColumns[rel.Name]; (ok && !v) || (!ok && restricted) {
					continue
				}

				fieldType := rel.Field.IndirectFieldType.Elem()

						withoutConditions = true
						break
					}
				}

				if !withoutConditions && db.AddError(tx.Clauses(clause.Where{Exprs: queryConds}).Delete(modelValue).Error) != nil {
					return
				}
			case schema.Many2Many:
				var (
					queryConds     = make([]clause.Expression, 0, len(rel.References))
					foreignFields  = make([]*schema.Field, 0, len(rel.References))
					relForeignKeys = make([]string, 0, len(rel.References))

		return &uni, stmt.Table
	}

	getTable := func(rel *schema.Relationship) string {
		switch rel.Type {
		case schema.HasOne, schema.HasMany:
			return rel.FieldSchema.Table
		case schema.Many2Many:
			return rel.JoinTable.Table
		}
		return stmt.Table
	}

	for _, rel := range stmt.Schema.Relationships.Relations {
		if constraint := rel.ParseConstraint(); constraint != nil && constraint.Name == name {