package sqimple

import (
	"strings"
)

// https://www.sqlite.org/lang_delete.html
type DeleteQuery struct {
	table SelectTable

	where []Where
	args  []any
}

func (q *DeleteQuery) Args() []any {
	return q.args
}

func (q *DeleteQuery) IsValid() bool {
	if !q.table.IsValid() {
		return false
	}

	for _, w := range q.where {
		if !w.IsValid() {
			return false
		}
	}

	return false
}

func (q *DeleteQuery) String() string {
	strs := []string{"delete", q.table.String()}

	if len(q.where) > 0 {
		strs = append(strs, "where")

		for _, w := range q.where {
			strs = append(strs, w.String())
		}
	}

	return strings.Join(strs, " ")
}

func (q *DeleteQuery) Where(def string, args ...any) *DeleteQuery {
	q.where = append(q.where, Where(def))

	if len(args) > 0 {
		if q.args == nil {
			q.args = []any{}
		}

		q.args = append(q.args, args...)
	}

	return q
}

func Delete(from string) *DeleteQuery {
	q := &DeleteQuery{
		table: From(from),

		where: []Where{},
	}

	return q
}