<?php

namespace App\Form;

use App\Feature\Organize\Organizer;
use App\Gui\IconBox;
use JumPHP\Gui\Button;
use JumPHP\Gui\Form;
use JumPHP\Gui\Label;
use JumPHP\Gui\ListBox;
use JumPHP\Gui\TextBox;

/**
 * One dialog for the folders (forms/FolderForm.form.yaml), by its 'mode':
 * - move: Move to Folder… of an object: a folder of the list (or the top level), or a new one typed below;
 * - new: New Folder (under 'parent'); rename: Rename Folder ('path'); renameTag: Rename Tag ('path' = the tag).
 * Closes with ['organize' => ['mode', 'target', 'folder', 'path']]: OrganizeCommands::apply() makes the XAPI calls.
 *
 * @property IconBox $icon
 * @property Label $heading
 * @property Label $listLabel
 * @property ListBox $folders
 * @property Label $valueLabel
 * @property TextBox $value
 * @property Label $hint
 * @property Label $error
 * @property Button $ok
 * @property Button $cancel
 */
final class FolderForm extends Form
{
    public const TOP = '(top level)';

    public function __construct(private \App\Model\Session $session)
    {
        parent::__construct();
    }

    /** XAPI's answers, events and the console go on while this dialog is open. */
    protected function tick(float $dt): void
    {
        $this->session->tick($dt);
    }

    private array $params = [];

    protected function loaded(array $params = []): void
    {
        $this->params = $params;
        $mode = (string)($params['mode'] ?? 'move');
        $move = $mode === 'move';
        $this->folders->visible = $this->listLabel->visible = $move;
        $this->icon->kind = $mode === 'renameTag' ? 'tag' : 'folder';
        $this->error->text = '';
        $this->value->text = (string)($params['value'] ?? '');
        if ($move) {
            $this->folders->items = [self::TOP, ...array_map('strval', (array)($params['folders'] ?? []))];
            $this->folders->selected = max(0, (int)array_search((string)($params['folder'] ?? '') ?: self::TOP, $this->folders->items, true));
        }
        [$heading, $label, $ok, $hint] = match ($mode) {
            'new' => ['New Folder', 'Name of the new folder:', 'Create',
                (($params['parent'] ?? '') !== '' ? "In '" . $params['parent'] . "'. " : '') . 'A folder is kept in the pool\'s settings until an object is moved into it.'],
            'rename' => ["Rename Folder '" . ($params['path'] ?? '') . "'", 'New name:', 'Rename', 'Its objects and its subfolders follow it. A path starting with / moves it.'],
            'renameTag' => ["Rename Tag '" . ($params['path'] ?? '') . "'", 'New name:', 'Rename', 'Every object that has this tag gets the new one.'],
            default => ["Move '" . ($params['name'] ?? '') . "' to a folder", 'Or a new folder:', 'Move', 'Folders are kept on the server (other_config "folder"), so every XenCenter sees them.'],
        };
        $this->heading->text = $heading;
        $this->valueLabel->text = $label;
        $this->ok->text = $ok;
        $this->hint->text = $hint;
        $this->setFocus($move ? $this->folders : $this->value);
    }

    public function onOkClick(mixed $sender = null): void
    {
        $mode = (string)($this->params['mode'] ?? 'move');
        $typed = trim($this->value->text);
        $path = (string)($this->params['path'] ?? '');
        if ($mode !== 'move' && $typed === '') {
            $this->error->text = 'Enter a name.';
            return;
        }
        if ($mode === 'renameTag' && str_contains($typed, ',')) {
            $this->error->text = 'A tag has no comma.';
            return;
        }
        $folder = match ($mode) {
            'move' => $typed !== '' ? Organizer::normalize($typed) : (($v = $this->folders->value()) === null || $v === self::TOP ? '' : $v),
            'new' => Organizer::normalize(str_starts_with($typed, '/') ? $typed : (string)($this->params['parent'] ?? '') . '/' . $typed),
            'rename' => Organizer::normalize(str_starts_with($typed, '/') ? $typed : Organizer::parent($path) . '/' . $typed),
            default => $typed,
        };
        if ($mode === 'rename' && ($folder === '' || Organizer::inside($folder, $path))) {
            $this->error->text = 'A folder cannot go inside itself.';
            return;
        }
        $this->close(['organize' => ['mode' => $mode, 'target' => $this->params['target'] ?? '', 'folder' => $folder, 'path' => $path]]);
    }

    public function onCancelClick(Button $sender): void
    {
        $this->close();
    }
}