<?php

declare(strict_types=1);


namespace Give\Vendors\StellarWP\AdminNotices\ValueObjects;

use InvalidArgumentException;

class NoticeLocation
{
    private const ABOVE_HEADER = 'above_header';
    private const BELOW_HEADER = 'below_header';
    private const INLINE = 'inline';

    /**
     * @var string
     */
    private $location;

    /**
     * @since 2.0.0
     */
    public static function aboveHeader(): self
    {
        return new self(self::ABOVE_HEADER);
    }

    /**
     * An alias of aboveHeader(), as this is the standard WordPress location for admin notices.
     *
     * @since 2.0.0
     */
    public static function standard(): self
    {
        return self::belowHeader();
    }

    /**
     * @since 2.0.0
     */
    public static function belowHeader(): self
    {
        return new self(self::BELOW_HEADER);
    }

    /**
     * @since 2.0.0
     */
    public static function inline(): self
    {
        return new self(self::INLINE);
    }

    /**
     * @since 2.0.0
     */
    public function __construct(string $location)
    {
        $this->validateLocation($location);

        $this->location = $location;
    }

    /**
     * @since 2.0.0
     */
    public function __toString()
    {
        return $this->location;
    }

    /**
     * @since 2.0.0
     */
    public function isAboveHeader(): bool
    {
        return $this->location === self::ABOVE_HEADER;
    }

    /**
     * @since 2.0.0
     */
    public function isBelowHeader(): bool
    {
        return $this->location === self::BELOW_HEADER;
    }

    /**
     * An alias of isAboveHeader(), as this is the standard WordPress location for admin notices.
     *
     * @since 2.0.0
     */
    public function isStandard(): bool
    {
        return $this->isBelowHeader();
    }

    /**
     * @since 2.0.0
     */
    public function isInline(): bool
    {
        return $this->location === self::INLINE;
    }

    /**
     * @since 2.0.0
     *
     * @param string|self $location
     */
    public function equals($location): bool
    {
        if (!(is_string($location) || $location instanceof self)) {
            throw new InvalidArgumentException(
                'Invalid location: ' . gettype($location) . ' - must be a string or an instance of ' . self::class
            );
        }

        return $location instanceof self
            ? $this->location === $location->location
            : $this->location === $location;
    }

    /**
     * @since 2.0.0
     */
    private function validateLocation(string $location)
    {
        $validLocations = [
            self::ABOVE_HEADER,
            self::BELOW_HEADER,
            self::INLINE,
        ];

        if (!in_array($location, $validLocations, true)) {
            throw new InvalidArgumentException(
                "Invalid location: $location - must be one of " . implode(', ', $validLocations)
            );
        }
    }
}