package clause

import "strings"

type Where struct {
	condition Clause
}

func NewWhere(condition Clause) *Where {
	return &Where{
		condition: condition,
	}
}

func (clause *Where) Clause() (string, error) {
	if clause.condition == nil {
		return "", nil
	}

	conditionClause, err := clause.condition.Clause()
	if err != nil {
		return "", err
	}

	clauseBuilder := strings.Builder{}
	clauseBuilder.WriteString("WHERE\n")
	clauseBuilder.WriteString("  " + conditionClause)
	clauseBuilder.WriteString("\n")

	return clauseBuilder.String(), nil
}

func (clause *Where) Args() []any {
	if clause.condition == nil {
		return make([]any, 0)
	}

	return clause.condition.Args()
}