<?php

require_once __DIR__ . '/BaseController.php';

/**
 * ConsultantController — Cruscotto Studio (consulente / società di consulenza).
 * Vista d'insieme su TUTTE le aziende gestite dall'utente: compliance, rischi,
 * incidenti e SCADENZE GENERALI aggregate. Read-only, org-scoping = visibilità
 * dell'utente (super_admin = tutte le org attive; altri = le proprie membership).
 */
class ConsultantController extends BaseController
{
    /**
     * GET /api/consultant/portfolio
     */
    public function portfolio(): void
    {
        $this->requireAuth();
        $user = $this->getCurrentUser() ?? [];
        $uid  = (int) $this->getCurrentUserId();

        // Aziende visibili all'utente (stessa regola di OrganizationController::list):
        // super_admin = tutte; consulente = clienti del proprio studio (consulting_firm_id)
        // UNION le proprie membership; altri = solo le proprie membership.
        $firmId = (int) ($user['consulting_firm_id'] ?? 0);
        if (($user['role'] ?? '') === 'super_admin') {
            $orgs = Database::fetchAll(
                "SELECT id, name, entity_type, voluntary_compliance, sector
                 FROM organizations WHERE is_active = 1 ORDER BY name LIMIT 200"
            );
        } elseif (($user['role'] ?? '') === 'consultant' && $firmId > 0) {
            $orgs = Database::fetchAll(
                "SELECT DISTINCT o.id, o.name, o.entity_type, o.voluntary_compliance, o.sector
                 FROM organizations o
                 LEFT JOIN user_organizations uo ON uo.organization_id = o.id AND uo.user_id = ?
                 WHERE o.is_active = 1 AND (o.consulting_firm_id = ? OR uo.user_id IS NOT NULL)
                 ORDER BY o.name LIMIT 200",
                [$uid, $firmId]
            );
        } else {
            $orgs = Database::fetchAll(
                "SELECT o.id, o.name, o.entity_type, o.voluntary_compliance, o.sector
                 FROM organizations o
                 JOIN user_organizations uo ON uo.organization_id = o.id
                 WHERE uo.user_id = ? AND o.is_active = 1 ORDER BY o.name LIMIT 200",
                [$uid]
            );
        }

        $now = date('Y-m-d H:i:s');
        $companies = [];
        $allDeadlines = [];
        $sumScore = 0; $nScore = 0; $overdueTotal = 0;

        foreach ($orgs as $o) {
            $oid = (int) $o['id'];

            $asmt  = Database::fetchOne(
                "SELECT overall_score FROM assessments
                 WHERE organization_id = ? AND status = 'completed'
                 ORDER BY completed_at DESC LIMIT 1", [$oid]);
            $score = ($asmt && $asmt['overall_score'] !== null) ? (int) round((float) $asmt['overall_score']) : null;

            $risks = (int) (Database::fetchOne(
                "SELECT COUNT(*) c FROM risks WHERE organization_id = ? AND status <> 'closed'", [$oid])['c'] ?? 0);
            $incs  = (int) (Database::fetchOne(
                "SELECT COUNT(*) c FROM incidents WHERE organization_id = ? AND status NOT IN ('closed','post_mortem')", [$oid])['c'] ?? 0);

            $dls = $this->collectDeadlines($oid);
            $overdue = 0;
            foreach ($dls as $d) {
                $d['org_id']   = $oid;
                $d['org_name'] = $o['name'];
                $d['overdue']  = ($d['due_date'] < $now);
                if ($d['overdue']) { $overdue++; }
                $allDeadlines[] = $d;
            }

            if ($score !== null) { $sumScore += $score; $nScore++; }
            $overdueTotal += $overdue;

            $companies[] = [
                'id'                   => $oid,
                'name'                 => $o['name'],
                'entity_type'          => $o['entity_type'],
                'voluntary_compliance' => (int) $o['voluntary_compliance'],
                'sector'               => $o['sector'],
                'compliance_score'     => $score,
                'open_risks'           => $risks,
                'open_incidents'       => $incs,
                'deadlines_overdue'    => $overdue,
                'deadlines_upcoming'   => count($dls) - $overdue,
            ];
        }

        usort($allDeadlines, fn($a, $b) => strcmp((string) $a['due_date'], (string) $b['due_date']));

        $this->jsonSuccess([
            'companies' => $companies,
            'deadlines' => $allDeadlines,
            'kpis'      => [
                'total_companies' => count($companies),
                'avg_compliance'  => $nScore ? (int) round($sumScore / $nScore) : null,
                'overdue_total'   => $overdueTotal,
                'upcoming_total'  => count($allDeadlines) - $overdueTotal,
            ],
        ]);
    }

    /**
     * Scadenze "aperte" di una org (incidenti CSIRT, policy, trattamenti rischio,
     * formazione) con orizzonte a +30 giorni ma includendo anche gli scaduti (past-due),
     * così il cruscotto distingue "in ritardo" da "in arrivo". Fonti coerenti con
     * DashboardController::deadlines().
     */
    private function collectDeadlines(int $orgId): array
    {
        $out = [];
        $horizon = "DATE_ADD(NOW(), INTERVAL 30 DAY)";

        $inc = Database::fetchAll(
            "SELECT id, title, early_warning_due, early_warning_sent_at, notification_due,
                    notification_sent_at, final_report_due, final_report_sent_at
             FROM incidents
             WHERE organization_id = ? AND is_significant = 1 AND status NOT IN ('closed','post_mortem')",
            [$orgId]);
        foreach ($inc as $i) {
            if ($i['early_warning_due'] && !$i['early_warning_sent_at'])
                $out[] = ['type'=>'incident_early_warning','title'=>"Early Warning: {$i['title']}",'due_date'=>$i['early_warning_due'],'severity'=>'critical','entity_type'=>'incident','entity_id'=>(int)$i['id']];
            if ($i['notification_due'] && !$i['notification_sent_at'])
                $out[] = ['type'=>'incident_notification','title'=>"Notifica CSIRT: {$i['title']}",'due_date'=>$i['notification_due'],'severity'=>'high','entity_type'=>'incident','entity_id'=>(int)$i['id']];
            if ($i['final_report_due'] && !$i['final_report_sent_at'])
                $out[] = ['type'=>'incident_final_report','title'=>"Report finale: {$i['title']}",'due_date'=>$i['final_report_due'],'severity'=>'medium','entity_type'=>'incident','entity_id'=>(int)$i['id']];
        }

        foreach (Database::fetchAll(
            "SELECT id, title, next_review_date FROM policies
             WHERE organization_id = ? AND next_review_date IS NOT NULL
                   AND next_review_date <= $horizon AND status NOT IN ('archived')", [$orgId]) as $p) {
            $out[] = ['type'=>'policy_review','title'=>"Revisione policy: {$p['title']}",'due_date'=>$p['next_review_date'],'severity'=>'medium','entity_type'=>'policy','entity_id'=>(int)$p['id']];
        }

        foreach (Database::fetchAll(
            "SELECT rt.id, rt.due_date, r.title AS risk_title FROM risk_treatments rt
             JOIN risks r ON r.id = rt.risk_id
             WHERE r.organization_id = ? AND rt.status IN ('planned','in_progress')
                   AND rt.due_date IS NOT NULL AND rt.due_date <= $horizon", [$orgId]) as $t) {
            $out[] = ['type'=>'risk_treatment','title'=>"Trattamento rischio: {$t['risk_title']}",'due_date'=>$t['due_date'],'severity'=>'medium','entity_type'=>'risk_treatment','entity_id'=>(int)$t['id']];
        }

        foreach (Database::fetchAll(
            "SELECT ta.id, tc.title, ta.due_date FROM training_assignments ta
             JOIN training_courses tc ON tc.id = ta.course_id
             WHERE ta.organization_id = ? AND ta.status IN ('assigned','in_progress')
                   AND ta.due_date IS NOT NULL AND ta.due_date <= $horizon", [$orgId]) as $tr) {
            $out[] = ['type'=>'training_due','title'=>"Formazione: {$tr['title']}",'due_date'=>$tr['due_date'],'severity'=>'low','entity_type'=>'training','entity_id'=>(int)$tr['id']];
        }

        return $out;
    }
}