<?php

/**
 * Mock implementation of VisualLimsApiClient.
 * Activated when SIMULATE_EXPORT_LIMS=true in .env.
 * All HTTP calls are skipped; fake but structurally valid data is returned.
 * Every simulated call is logged via error_log() with a [SIMULATE] prefix.
 */
class VisualLimsApiClientMock
{
    private int $fakeCommessaId;

    public function __construct()
    {
        // Stable fake ID for the lifetime of a single request
        $this->fakeCommessaId = mt_rand(90001, 99999);
        error_log("[SIMULATE] VisualLimsApiClientMock initialised (fakeCommessaId={$this->fakeCommessaId})");
    }

    public function get(string $endpoint): array
    {
        error_log("[SIMULATE] GET {$endpoint}");

        // --- Fixed-field dropdown lists ---

        if (str_starts_with($endpoint, 'MoltiplicatorePrezzi')) {
            return ['value' => [
                ['IdMoltiplicatorePrezzo' => 1, 'Codice' => 'MP-01', 'Descrizione' => 'Standard (1x)'],
                ['IdMoltiplicatorePrezzo' => 2, 'Codice' => 'MP-02', 'Descrizione' => 'Urgente (1.5x)'],
                ['IdMoltiplicatorePrezzo' => 3, 'Codice' => 'MP-03', 'Descrizione' => 'Extra Urgente (2x)'],
            ]];
        }

        if (str_starts_with($endpoint, 'AnagraficaCertestObject')) {
            return ['value' => [
                ['IdAnagrafica' => 1, 'Codice' => 'OBJ-01', 'NomeAnagrafica' => 'Articolo Tessile'],
                ['IdAnagrafica' => 2, 'Codice' => 'OBJ-02', 'NomeAnagrafica' => 'Componente Meccanico'],
                ['IdAnagrafica' => 3, 'Codice' => 'OBJ-03', 'NomeAnagrafica' => 'Materiale Plastico'],
            ]];
        }

        if (str_starts_with($endpoint, 'AnagraficaCertestService')) {
            return ['value' => [
                ['IdAnagrafica' => 1, 'Codice' => 'SRV-01', 'NomeAnagrafica' => 'Analisi Chimica'],
                ['IdAnagrafica' => 2, 'Codice' => 'SRV-02', 'NomeAnagrafica' => 'Test Meccanico'],
                ['IdAnagrafica' => 3, 'Codice' => 'SRV-03', 'NomeAnagrafica' => 'Prova Ambientale'],
            ]];
        }

        // Cliente? list — get_clienti.php exits early in simulate mode, but guard here too
        if (str_starts_with($endpoint, 'Cliente?')) {
            return ['value' => []];
        }

        // Cliente(N)?$expand=Responsabili
        if (str_starts_with($endpoint, 'Cliente(')) {
            preg_match('/Cliente\((\d+)\)/', $endpoint, $m);
            $clienteId = isset($m[1]) ? (int) $m[1] : 0;
            return [
                'IdCliente'    => $clienteId,
                'Responsabili' => [
                    ['IdClienteResponsabile' => 1, 'Nominativo' => 'Marco Bianchi'],
                    ['IdClienteResponsabile' => 2, 'Nominativo' => 'Giulia Ferrari'],
                    ['IdClienteResponsabile' => 3, 'Nominativo' => 'Andrea Russo'],
                ],
            ];
        }

        // --- CustomField dropdown values (get_customfield_values.php) ---

        if (str_starts_with($endpoint, 'CustomField(')) {
            preg_match('/CustomField\((\d+)\)/', $endpoint, $m);
            $fieldId = isset($m[1]) ? (int) $m[1] : 0;
            return [
                'CustomFieldsValues' => [
                    ['IdCustomFieldsValue' => $fieldId * 10 + 1, 'Valore' => 'Opzione A'],
                    ['IdCustomFieldsValue' => $fieldId * 10 + 2, 'Valore' => 'Opzione B'],
                    ['IdCustomFieldsValue' => $fieldId * 10 + 3, 'Valore' => 'Opzione C'],
                ],
            ];
        }

        // --- CommessaWeb OData calls (STEP 7 GET + STEP 10 verification) ---

        preg_match('/\((\d+)\)/', $endpoint, $m);
        $id = isset($m[1]) ? (int) $m[1] : $this->fakeCommessaId;

        return [
            'IdCommessa'           => $id,
            'CodiceCommessa'       => "SIM-{$id}",
            'CommesseCustomFields' => [],   // Empty → PATCH step is skipped correctly
        ];
    }

    public function post(string $endpoint, array $payload): array
    {
        error_log("[SIMULATE] POST {$endpoint} payload=" . json_encode($payload));

        // CommessaWeb creation
        if ($endpoint === 'CommessaWeb') {
            return [
                'IdCommessa'     => $this->fakeCommessaId,
                'CodiceCommessa' => "SIM-{$this->fakeCommessaId}",
                'Richiedente'    => $payload['Richiedente'] ?? '',
                'Descrizione'    => $payload['Descrizione'] ?? '',
            ];
        }

        // Campione creation
        if ($endpoint === 'Campione') {
            return [
                'IdCampione' => mt_rand(10001, 19999),
                'Commessa'   => $payload['Commessa'] ?? null,
                'Matrice'    => $payload['Matrice'] ?? null,
            ];
        }

        // InviaCommessa / ImportaCommessa (currently commented out upstream)
        return ['simulated' => true, 'endpoint' => $endpoint];
    }

    public function patch(string $endpoint, array $payload): array
    {
        error_log("[SIMULATE] PATCH {$endpoint} payload=" . json_encode($payload));

        return [];
    }

    public function postMultipart(string $endpoint, string $filePath, string $fileName, array $extraFields = []): array
    {
        error_log("[SIMULATE] POST multipart {$endpoint} file={$fileName}");

        return ['simulated' => true, 'file' => $fileName];
    }
}