<?php

namespace App\Livewire;

use App\Models\BackupScheduleRun;
use App\Models\BulkOperationRun;
use App\Models\Tenant;
use Illuminate\Support\Arr;
use Livewire\Attributes\Computed;
use Livewire\Component;

class BulkOperationProgress extends Component
{
    public $runs;

    public int $pollSeconds = 3;

    public int $recentFinishedSeconds = 12;

    public function mount()
    {
        $this->pollSeconds = max(1, min(10, (int) config('tenantpilot.bulk_operations.poll_interval_seconds', 3)));
        $this->recentFinishedSeconds = max(3, min(60, (int) config('tenantpilot.bulk_operations.recent_finished_seconds', 12)));
        $this->loadRuns();
    }

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

    public function loadRuns()
    {
        try {
            $tenant = Tenant::current();
        } catch (\RuntimeException $e) {
            $this->runs = collect();

            return;
        }

        $recentThreshold = now()->subSeconds($this->recentFinishedSeconds);

        $this->runs = BulkOperationRun::query()
            ->where('tenant_id', $tenant->id)
            ->where('user_id', auth()->id())
            ->where(function ($query) use ($recentThreshold): void {
                $query->whereIn('status', ['pending', 'running'])
                    ->orWhere(function ($query) use ($recentThreshold): void {
                        $query->whereIn('status', ['completed', 'completed_with_errors', 'failed', 'aborted'])
                            ->where('updated_at', '>=', $recentThreshold);
                    });
            })
            ->orderByDesc('created_at')
            ->get();

        $this->reconcileBackupScheduleRuns($tenant->id);
    }

    private function reconcileBackupScheduleRuns(int $tenantId): void
    {
        $userId = auth()->id();

        if (! $userId) {
            return;
        }

        $staleThreshold = now()->subSeconds(60);

        foreach ($this->runs as $bulkRun) {
            if ($bulkRun->resource !== 'backup_schedule') {
                continue;
            }

            if (! in_array($bulkRun->status, ['pending', 'running'], true)) {
                continue;
            }

            if (! $bulkRun->created_at || $bulkRun->created_at->gt($staleThreshold)) {
                continue;
            }

            $scheduleId = (int) Arr::first($bulkRun->item_ids ?? []);

            if ($scheduleId <= 0) {
                continue;
            }

            $scheduleRun = BackupScheduleRun::query()
                ->where('tenant_id', $tenantId)
                ->where('user_id', $userId)
                ->where('backup_schedule_id', $scheduleId)
                ->where('created_at', '>=', $bulkRun->created_at)
                ->orderByDesc('id')
                ->first();

            if (! $scheduleRun) {
                continue;
            }

            if ($scheduleRun->finished_at) {
                $processed = 1;
                $succeeded = 0;
                $failed = 0;
                $skipped = 0;
                $status = 'completed';

                switch ($scheduleRun->status) {
                    case BackupScheduleRun::STATUS_SUCCESS:
                        $succeeded = 1;
                        break;

                    case BackupScheduleRun::STATUS_SKIPPED:
                        $skipped = 1;
                        break;

                    default:
                        $failed = 1;
                        $status = 'completed_with_errors';
                        break;
                }

                $bulkRun->forceFill([
                    'status' => $status,
                    'processed_items' => $processed,
                    'succeeded' => $succeeded,
                    'failed' => $failed,
                    'skipped' => $skipped,
                ])->save();

                continue;
            }

            if ($scheduleRun->started_at && $bulkRun->status === 'pending') {
                $bulkRun->forceFill(['status' => 'running'])->save();
            }
        }
    }

    public function render(): \Illuminate\Contracts\View\View
    {
        return view('livewire.bulk-operation-progress');
    }
}