<?php

declare(strict_types=1);

namespace App\Framework\Database\Schema;

final class ForeignKeyDefinition
{
    public readonly array $columns;

    public ?string $referencedTable = null;

    public array $referencedColumns = [];

    public ForeignKeyAction $onUpdate = ForeignKeyAction::RESTRICT;

    public ForeignKeyAction $onDelete = ForeignKeyAction::RESTRICT;

    public ?string $name = null;

    public function __construct(array $columns)
    {
        $this->columns = $columns;
    }

    public function references(string|array $columns): self
    {
        $this->referencedColumns = (array) $columns;

        return $this;
    }

    public function on(string $table): self
    {
        $this->referencedTable = $table;

        return $this;
    }

    public function onUpdate(ForeignKeyAction $action): self
    {
        $this->onUpdate = $action;

        return $this;
    }

    public function onDelete(ForeignKeyAction $action): self
    {
        $this->onDelete = $action;

        return $this;
    }

    public function cascadeOnUpdate(): self
    {
        return $this->onUpdate(ForeignKeyAction::CASCADE);
    }

    public function cascadeOnDelete(): self
    {
        return $this->onDelete(ForeignKeyAction::CASCADE);
    }

    public function nullOnDelete(): self
    {
        return $this->onDelete(ForeignKeyAction::SET_NULL);
    }

    public function restrictOnDelete(): self
    {
        return $this->onDelete(ForeignKeyAction::RESTRICT);
    }

    public function name(string $name): self
    {
        $this->name = $name;

        return $this;
    }
}