orm

type Columns struct {
	// contains filtered or unexported fields
}

type Hook[T any] func(context.Context, bob.Executor, T) (context.Context, error)

type Hooks[T any, K any] struct {
	// contains filtered or unexported fields
}

type RelSetDetails struct {
	TableName string
	Mapped    []RelSetMapping
	Position  int
	Start     bool
	End       bool
}

type RelSetMapping struct {
	Column         string
	Value          string
	ExternalTable  string
	ExternalColumn string
	ExternalStart  bool
	ExternalEnd    bool
	ExtPosition    int
}

type RelSide struct {
	From string `yaml:"from"`
	To   string `yaml:"to"`

	// To make sure the column lengths match and are in the right order,
	// a slice of tupules is expected.
	// bobgen-helpers.GenConfig has a function to spread that into From/ToColumns
	Columns     [][2]string `yaml:"columns"`
	FromColumns []string    `yaml:"-"`
	ToColumns   []string    `yaml:"-"`

	FromWhere []RelWhere `yaml:"from_where"`
	ToWhere   []RelWhere `yaml:"to_where"`

	// If the destination columns contain the key
	// if false, it means the source columns are the foreign key
	ToKey bool `yaml:"to_key"`
	// if the destination is unique
	ToUnique bool `yaml:"to_unique"`
	// If the key is nullable. We need this to know if we can remove the
	// relationship without deleting it
	KeyNullable bool `yaml:"key_nullable"`

	// Kinda hacky, used for preloading
	ToExpr func(context.Context) bob.Expression `json:"-" yaml:"-"`
}

type RelWhere struct {
	Column  string `yaml:"column"`
	Value   string `yaml:"value"`
	GoValue string `yaml:"go_value"`
}

type Relationship struct {
	Name        string    `yaml:"name"`
	ByJoinTable bool      `yaml:"by_join_table"`
	Sides       []RelSide `yaml:"sides"`

	// These can be set through user configuration
	Ignored bool
	// Do not create the inverse of a user configured relationship
	NoReverse bool `yaml:"no_reverse"`

	// if present is used instead of computing from the columns
	// only expected to be set by drivers not by configuration
	// configuration should set aliases though the alias configuration
	Alias string `yaml:"-"`
}

type RelationshipChainError struct {
	Table1  string
	Column1 string
	Value   string
	Table2  string
	Column2 string
}

type Setter[T any, InsertQ any, UpdateQ any] interface {
	// SetColumns should return the column names that are set
	SetColumns() []string
	// Overwrite the values in T with the set values in the setter
	Overwrite(T)
	// Act as a mod for the update query
	bob.Mod[UpdateQ]
	// Return a mod for the insert query
	Insert() bob.Mod[InsertQ]
}

type SkipModelHooksKey struct{}

type SkipQueryHooksKey struct{}

type Table interface {
	// PrimaryKeyVals returns the values of the primary key columns
	// If a single column, expr.Arg(col) is expected
	// If multiple columns, expr.ArgGroup(col1, col2, ...) is expected
	PrimaryKeyVals() bob.Expression
}