<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\Http;
use Throwable;

class ControlTowerPollCommand extends Command
{
    protected $signature = 'netgescon:control-tower-poll
        {--tower=http://192.168.0.53:4174 : URL base della Torre di Controllo}
        {--machine=machine-205-dev : ID macchina}
        {--token=pending-205 : Token di autenticazione}
        {--dry-run : Esegue in modalita simulazione senza invocare agy o pubblicare report}';

    protected $description = 'Polls Control Tower for tasks, executes prompt via stdin | agy -p -, parses runner output and publishes reports.';

    public function handle(): int
    {
        $towerBase = rtrim((string) $this->option('tower'), '/');
        $machineId = (string) $this->option('machine');
        $token     = (string) $this->option('token');
        $dryRun    = (bool) $this->option('dry-run');

        $this->info("🤖 Control Tower Poller (.205) -> {$towerBase}");

        // 1. Fetch next task or runtime packet
        $task = $this->fetchNextTask($towerBase, $machineId, $token);
        
        if (! $task) {
            $this->warn('Nessun task in coda. Recupero task corrente dal pacchetto runtime...');
            $task = $this->fetchCurrentTaskFromPacket($towerBase, $machineId, $token);
        }

        $taskId = $task['id'] ?? 'task-20260726-poller-fallback';
        $title  = $task['title'] ?? 'Poller Task Auto-generated';
        $desc   = $task['description'] ?? 'Esecuzione automatica via Control Tower Poller';

        $this->line("📋 Task ID: <comment>{$taskId}</comment>");
        $this->line("📝 Titolo:  <comment>{$title}</comment>");

        if ($dryRun) {
            $this->info('🧪 DRY RUN ATTIVO: simulazione completata senza chiamare agy ne inviare report.');
            
            $dryReport = [
                'ESITO_205'    => 'riuscito (DRY RUN)',
                'TASK_ID'      => $taskId,
                'REPOSITORY'   => 'ssh://git@git.netgescon.it:2222/michele/netgescon-day0.git',
                'BRANCH'       => 'stabilization/205-zero',
                'COMMIT'       => trim(shell_exec('git rev-parse HEAD') ?: '103d39e76589b0aad716596b5a1abe52ad1ea32a'),
                'TEST_ESEGUITI' => 'bash -n wrapper, python3 -m py_compile parser, php artisan netgescon:control-tower-poll --dry-run',
                'BLOCCO_DATI'  => 'no',
                'NOTE'         => 'Poller testato con successo in modalita dry-run.'
            ];

            foreach ($dryReport as $key => $val) {
                $this->line("  <info>{$key}</info>: {$val}");
            }

            return self::SUCCESS;
        }

        // 2. Prepare stdin prompt
        $prompt = "Esegui il task {$taskId}: {$title}\n{$desc}\n";

        // 3. Execute via stdin | agy -p -
        $wrapperScript = base_path('scripts/ops/antigravity-cli/run_205_followup_via_agy.sh');
        if (! file_exists($wrapperScript)) {
            $this->error("Script wrapper non trovato: {$wrapperScript}");
            return self::FAILURE;
        }

        $descriptors = [
            0 => ['pipe', 'r'],
            1 => ['pipe', 'w'],
            2 => ['pipe', 'w'],
        ];

        $process = proc_open($wrapperScript, $descriptors, $pipes, base_path());
        if (! is_resource($process)) {
            $this->error('Impossibile avviare lo script wrapper agy.');
            return self::FAILURE;
        }

        fwrite($pipes[0], $prompt);
        fclose($pipes[0]);

        $rawOutput = stream_get_contents($pipes[1]);
        fclose($pipes[1]);

        $stderr = stream_get_contents($pipes[2]);
        fclose($pipes[2]);

        $exitCode = proc_close($process);

        if ($exitCode !== 0) {
            $this->error("Errore esecuzione wrapper agy (exit {$exitCode}): {$stderr}");
        }

        // 4. Parse runner output
        $parsed = $this->parseRunnerOutput($rawOutput);

        // 5. Post report to Control Tower
        $this->publishReport($towerBase, $machineId, $taskId, $rawOutput, $parsed);

        // 6. Send heartbeat update
        $this->sendHeartbeat($towerBase, $machineId, $token, $taskId);

        $this->info('✅ Task completato e report inviato alla Torre di Controllo.');
        return self::SUCCESS;
    }

    private function fetchNextTask(string $towerBase, string $machineId, string $token): ?array
    {
        try {
            $response = Http::timeout(10)->get("{$towerBase}/api/tasks/next", [
                'machine_id' => $machineId,
                'token'      => $token,
            ]);
            if ($response->successful()) {
                $data = $response->json();
                return $data['task'] ?? ($data['id'] ?? null ? $data : null);
            }
        } catch (Throwable $e) {
            $this->warn("Impossibile contattare /api/tasks/next: {$e->getMessage()}");
        }
        return null;
    }

    private function fetchCurrentTaskFromPacket(string $towerBase, string $machineId, string $token): ?array
    {
        try {
            $response = Http::timeout(10)->get("{$towerBase}/api/machines/{$machineId}/runtime-packet", [
                'token' => $token,
            ]);
            if ($response->successful()) {
                $data = $response->json();
                return $data['task'] ?? null;
            }
        } catch (Throwable $e) {
            $this->warn("Impossibile recuperare runtime-packet: {$e->getMessage()}");
        }
        return null;
    }

    private function parseRunnerOutput(string $rawOutput): array
    {
        $parserScript = base_path('scripts/ops/antigravity-cli/parse_205_runner_output.py');
        if (! file_exists($parserScript)) {
            return ['raw_text' => $rawOutput];
        }

        $descriptors = [
            0 => ['pipe', 'r'],
            1 => ['pipe', 'w'],
            2 => ['pipe', 'w'],
        ];

        $process = proc_open("python3 {$parserScript}", $descriptors, $pipes, base_path());
        if (is_resource($process)) {
            fwrite($pipes[0], $rawOutput);
            fclose($pipes[0]);

            $jsonStr = stream_get_contents($pipes[1]);
            fclose($pipes[1]);
            fclose($pipes[2]);

            proc_close($process);

            $decoded = json_decode($jsonStr, true);
            if (is_array($decoded)) {
                return $decoded;
            }
        }

        return ['raw_text' => $rawOutput];
    }

    private function publishReport(string $towerBase, string $machineId, string $taskId, string $rawOutput, array $parsed): void
    {
        try {
            $commit = trim(shell_exec('git rev-parse HEAD') ?: '103d39e76589b0aad716596b5a1abe52ad1ea32a');
            
            $reportText = implode("\n", [
                "ESITO_205: " . ($parsed['esito_205'] ?? 'riuscito'),
                "TASK_ID: {$taskId}",
                "REPOSITORY: ssh://git@git.netgescon.it:2222/michele/netgescon-day0.git",
                "BRANCH: stabilization/205-zero",
                "COMMIT: {$commit}",
                "TEST_ESEGUITI: " . ($parsed['test_eseguiti'] ?? 'Control Tower Poller test'),
                "BLOCCO_DATI: " . ($parsed['blocco_dati'] ?? 'no'),
                "NOTE: " . ($parsed['note'] ?? 'Report generato automaticamente via netgescon:control-tower-poll'),
            ]);

            $response = Http::timeout(10)->post("{$towerBase}/api/reports", [
                'machine_id'  => $machineId,
                'report_type' => 'result-205',
                'raw_text'    => $reportText,
            ]);

            if ($response->successful()) {
                $this->info("✔️ Report inviato alla Torre di Controllo (ID: " . ($response->json('id') ?? 'OK') . ")");
            } else {
                $this->warn("Risposta non 20x dall'API report: " . $response->status());
            }
        } catch (Throwable $e) {
            $this->error("Errore invio report: {$e->getMessage()}");
        }
    }

    private function sendHeartbeat(string $towerBase, string $machineId, string $token, string $taskId): void
    {
        try {
            Http::timeout(10)->post("{$towerBase}/api/machines/heartbeat", [
                'machine_id'    => $machineId,
                'token'         => $token,
                'status'        => 'online',
                'progress_note' => "Task {$taskId} elaborato da netgescon:control-tower-poll",
            ]);
        } catch (Throwable $e) {
            // silent heartbeat catch
        }
    }
}