<?php

namespace App\Actions\Tickets;

use App\Enums\TicketWorklogEntryType;
use App\Models\Project;
use App\Models\Ticket;
use App\Models\TicketStatus;
use App\Models\User;
use Illuminate\Support\Arr;

class MoveProjectTicket
{
    public function __construct(
        private readonly CreateTicketWorklogEntry $createTicketWorklogEntry,
    ) {}

    /**
     * @param  array{ticket_status_id: int}  $validated
     * @return array{destination_label: string, moved: bool}
     */
    public function handle(Project $project, Ticket $ticket, User $user, array $validated): array
    {
        $ticketStatusId = (int) Arr::get($validated, 'ticket_status_id');

        $destinationStatus = $project->ticketStatuses()
            ->with('boardColumn')
            ->findOrFail($ticketStatusId);

        $ticket->loadMissing('ticketStatus.boardColumn');

        $originStatusId = $ticket->ticket_status_id;
        $originLabel = $this->statusLabel($ticket->ticketStatus);
        $destinationLabel = $this->statusLabel($destinationStatus);

        if ($ticket->ticket_status_id === $ticketStatusId) {
            return [
                'destination_label' => $destinationLabel,
                'moved' => false,
            ];
        }

        $ticket->update([
            'ticket_status_id' => $destinationStatus->id,
        ]);

        $this->createTicketWorklogEntry->handle(
            $ticket->fresh(),
            $user,
            TicketWorklogEntryType::StatusChanged,
            "Moved from {$originLabel} to {$destinationLabel}.",
            [
                'from' => [
                    'label' => $originLabel,
                    'ticket_status_id' => $originStatusId,
                ],
                'to' => [
                    'label' => $destinationLabel,
                    'ticket_status_id' => $destinationStatus->id,
                ],
            ],
        );

        return [
            'destination_label' => $destinationLabel,
            'moved' => true,
        ];
    }

    private function statusLabel(?TicketStatus $ticketStatus): string
    {
        if ($ticketStatus === null) {
            return 'Unknown status';
        }

        if ($ticketStatus->boardColumn === null) {
            return $ticketStatus->name;
        }

        if ($ticketStatus->boardColumn->name === $ticketStatus->name) {
            return $ticketStatus->name;
        }

        return "{$ticketStatus->boardColumn->name} / {$ticketStatus->name}";
    }
}