<?php

namespace App\Livewire;

use App\Models\OperationRun;
use App\Models\Tenant;
use App\Support\OpsUx\OpsUxBrowserEvents;
use Filament\Facades\Filament;
use Illuminate\Support\Collection;
use Livewire\Attributes\Computed;
use Livewire\Attributes\On;
use Livewire\Component;

class BulkOperationProgress extends Component
{
    /**
     * @var Collection<int, OperationRun>
     */
    public Collection $runs;

    public int $overflowCount = 0;

    public bool $disabled = false;

    public bool $hasActiveRuns = false;

    public ?int $tenantId = null;

    public function mount(): void
    {
        $this->runs = collect();

        $tenant = Filament::getTenant();
        $this->tenantId = $tenant instanceof Tenant ? (int) $tenant->id : null;

        $this->refreshRuns();
    }

    #[On(OpsUxBrowserEvents::RunEnqueued)]
    public function onRunEnqueued(?int $tenantId = null): void
    {
        if ($tenantId !== null) {
            $this->tenantId = $tenantId;
        }

        $this->refreshRuns();
    }

    #[Computed]
    public function activeRuns()
    {
        return $this->runs;
    }

    public function refreshRuns(): void
    {
        $tenantId = $this->tenantId;

        // Best-effort: if we're mounted on a tenant page, capture it once.
        if ($tenantId === null) {
            $tenant = Filament::getTenant();
            $tenantId = $tenant instanceof Tenant ? (int) $tenant->id : null;
            $this->tenantId = $tenantId;
        }

        if ($tenantId === null) {
            $this->disabled = true;
            $this->runs = collect();
            $this->overflowCount = 0;
            $this->hasActiveRuns = false;

            return;
        }

        if (! auth()->user()?->can('viewAny', OperationRun::class)) {
            $this->disabled = true;
            $this->runs = collect();
            $this->overflowCount = 0;
            $this->hasActiveRuns = false;

            return;
        }

        $this->disabled = false;

        $query = OperationRun::query()
            ->where('tenant_id', $tenantId)
            ->active()
            ->orderByDesc('created_at');

        $activeCount = (clone $query)->count();
        $this->runs = (clone $query)->limit(6)->get();
        $this->overflowCount = max(0, $activeCount - 5);
        $this->hasActiveRuns = $this->runs->isNotEmpty();
    }

    public function render(): \Illuminate\Contracts\View\View
    {
        return view('livewire.bulk-operation-progress', [
            'tenant' => Filament::getTenant(),
        ]);
    }
}