<?php

declare(strict_types=1);

namespace KTXM\ProviderImap\Client;

use KTXM\ProviderImap\Client\Result\MailboxStatusResult;

final class Mailbox
{
    /**
     * @param list<string> $attributes
     * @param list<string> $flags
     */
    public function __construct(
        private readonly string $name,
        private readonly ?string $delimiter,
        private readonly array $attributes,
        private readonly int $messages = 0,
        private readonly int $unread = 0,
        private readonly ?int $uidValidity = null,
        private readonly int $recent = 0,
        private readonly array $flags = [],
        private readonly bool $readOnly = true,
        private readonly ?int $uidNext = null,
        private readonly ?int $highestModSeq = null,
    ) {}

    public function fromStatus(MailboxStatusResult $status): self
    {
        $items = $status->items();

        return new self(
            $this->name,
            $this->delimiter,
            $this->attributes,
            $items['MESSAGES'] ?? $this->messages,
            $items['UNSEEN'] ?? $this->unread,
            $items['UIDVALIDITY'] ?? $this->uidValidity,
            $this->recent,
            $this->flags,
            $this->readOnly,
            $items['UIDNEXT'] ?? $this->uidNext,
            $items['HIGHESTMODSEQ'] ?? $this->highestModSeq,
        );
    }

    public function name(): string
    {
        return $this->name;
    }

    public function delimiter(): ?string
    {
        return $this->delimiter;
    }

    /**
     * @return list<string>
     */
    public function attributes(): array
    {
        return $this->attributes;
    }

    public function uidValidity(): ?int
    {
        return $this->uidValidity;
    }

    public function uidNext(): ?int
    {
        return $this->uidNext;
    }

    public function highestModSeq(): ?int
    {
        return $this->highestModSeq;
    }

    public function messages(): int
    {
        return $this->messages;
    }

    public function unread(): int
    {
        return $this->unread;
    }

    public function read(): int
    {
        return max(0, $this->messages - $this->unread);
    }

    public function recent(): int
    {
        return $this->recent;
    }

    /**
     * @return list<string>
     */
    public function flags(): array
    {
        return $this->flags;
    }

    public function readOnly(): bool
    {
        return $this->readOnly;
    }

    public function isSelectable(): bool
    {
        return !in_array('\\NOSELECT', $this->attributes, true);
    }
}