<?php

namespace App\Actions\Tickets;

use App\Actions\Projects\ListVisibleProjects;
use App\Http\Resources\ProjectResource;
use App\Http\Resources\TicketResource;
use App\Models\Project;
use App\Models\Ticket;
use App\Models\TicketStatus;
use App\Models\User;
use Illuminate\Database\Eloquent\Collection as EloquentCollection;
use Illuminate\Support\Collection;

class ListTicketsByStatusByVisibleProject
{
    public function __construct(
        private readonly ListVisibleProjects $listVisibleProjects,
    ) {}

    /**
     * @param  Collection<int, TicketStatus>  $ticketStatuses
     * @return array<int, array{project: array<string, mixed>, tickets: array<int, array<string, mixed>>}>
     */
    public function handle(User $viewer, Collection $ticketStatuses, ?Project $project = null): array
    {
        /** @var EloquentCollection<int, Project> $visibleProjects */
        $visibleProjects = $this->listVisibleProjects->handle($viewer);
        if ($project !== null) {
            $visibleProjects = $visibleProjects
                ->where('id', $project->id)
                ->values();
        }

        $visibleProjectIds = $visibleProjects->pluck('id')->all();

        if ($visibleProjectIds === [] || $ticketStatuses->isEmpty()) {
            return [];
        }

        $ticketStatusIds = $ticketStatuses->pluck('id')->all();

        /** @var Collection<int, Collection<int, Ticket>> $ticketsByProject */
        $ticketsByProject = Ticket::query()
            ->whereIn('project_id', $visibleProjectIds)
            ->whereIn('ticket_status_id', $ticketStatusIds)
            ->with([
                'assignee',
                'project',
                'ticketPriority',
                'ticketStatus.boardColumn',
                'ticketType',
            ])
            ->orderByDesc('sequence_number')
            ->get()
            ->groupBy('project_id');

        return $visibleProjects
            ->filter(fn (Project $visibleProject): bool => $ticketsByProject->has($visibleProject->id))
            ->map(fn (Project $visibleProject): array => [
                'project' => ProjectResource::make($visibleProject)->resolve(),
                'tickets' => TicketResource::collection($ticketsByProject->get($visibleProject->id))->resolve(),
            ])
            ->values()
            ->all();
    }
}