package sqltypes

import (
	"golang.org/x/xerrors"
)

type AstString struct {
	Source RegoSource
	Value  string
}

func String(v string) Node {
	return AstString{Value: v, Source: RegoSource(v)}
}

func (AstString) UseAs() Node { return AstString{} }

func (s AstString) SQLString(_ *SQLGenerator) string {
	return "'" + s.Value + "'"
}

func (s AstString) EqualsSQLString(cfg *SQLGenerator, not bool, other Node) (string, error) {
	switch other.UseAs().(type) {
	case AstString:
		return basicSQLEquality(cfg, not, s, other), nil
	default:
		return "", xerrors.Errorf("unsupported equality: %T %s %T", s, equalsOp(not), other)
	}
}