package simql

import (
	"fmt"
	"strings"
)

type OnClause struct {
	column   string
	operator string
	value    any

	and []*OnClause
}

func (o *OnClause) And(column, operator string, value any) *OnClause {
	o.and = append(o.and, On(column, operator, value))
	return o
}

func (o *OnClause) String() string {
	strs := []string{fmt.Sprintf("%s %s %s", o.column, o.operator, o.value)}

	for _, next := range o.and {
		strs = append(strs, "and", next.String())
	}

	return strings.Join(strs, " ")
}

func On(column, operator string, value any) *OnClause {
	o := &OnClause{
		column:   column,
		operator: operator,
		value:    value,

		and: []*OnClause{},
	}

	return o
}