<?php
ini_set('log_errors', 1);
ini_set('error_log', __DIR__ . '/routine_debug.log');

function applyRoutine(&$excelData, $routineData)
{
    try {
        // Log iniziale
        error_log("Inizio esecuzione routine Moncler: " . date('Y-m-d H:i:s'));
        error_log("Dati routine: " . print_r($routineData, true));
        error_log("Dati excel_data: " . print_r($excelData, true));

        // Verifica se excelData è vuoto
        if (empty($excelData)) {
            throw new Exception("excelData è vuoto o non valido.");
        }

        // Estrai informazioni dalla routine con valori predefiniti
        $action1 = trim($routineData['action1'] ?? 'K');
        $action2 = trim($routineData['action2'] ?? 'STYLE CODE + STYLE DESCRIPTION');
        $action3 = trim($routineData['action3'] ?? 'STYLE CODE');
        $action4 = trim($routineData['action4'] ?? 'STYLE DESCRIPTION');
        $headers = $routineData['xls_headers'] ?? [];

        if (empty($headers)) {
            throw new Exception("Nessun header trovato per la routine Moncler.");
        }
        error_log("Header ricevuti: " . print_r($headers, true));

        // Normalizza gli header (solo trim)
        $normalized_headers = array_map('trim', $headers);
        error_log("Header normalizzati: " . print_r($normalized_headers, true));
        error_log("Action values - action1: '$action1', action2: '$action2', action3: '$action3', action4: '$action4'");

        // Trova gli indici delle colonne
        $action1_index = array_search($action1, $normalized_headers);
        $action2_index = array_search($action2, $normalized_headers);
        $action3_index = array_search($action3, $normalized_headers);
        $action4_index = array_search($action4, $normalized_headers);

        if ($action1_index === false || $action2_index === false || $action3_index === false || $action4_index === false) {
            throw new Exception("Colonne non trovate - action1: '$action1' (index: " . var_export($action1_index, true) . "), action2: '$action2' (index: " . var_export($action2_index, true) . "), action3: '$action3' (index: " . var_export($action3_index, true) . "), action4: '$action4' (index: " . var_export($action4_index, true) . ")");
        }

        error_log("Indici colonne - action1: $action1_index, action2: $action2_index, action3: $action3_index, action4: $action4_index");

        // Raggruppa le righe per il valore in action1 (colonna K)
        $grouped_data = [];
        foreach ($excelData as $row) {
            if (!isset($row['data']) || !is_array($row['data'])) {
                error_log("Riga non valida, manca 'data' per excelrow {$row['excelrow']}");
                continue;
            }
            $key = $row['data'][$action1_index] ?? '';
            $key = empty($key) ? '_empty_' : $key;
            if (!isset($grouped_data[$key])) {
                $grouped_data[$key] = [
                    'data' => $row['data'],
                    'excelrow' => [$row['excelrow']],
                    'style_codes' => [],
                    'style_descriptions' => []
                ];
            } else {
                $grouped_data[$key]['excelrow'][] = $row['excelrow'];
            }

            // Separa il valore in action2 (STYLE CODE + STYLE DESCRIPTION)
            $action2_value = $row['data'][$action2_index] ?? '';
            if (!empty($action2_value)) {
                $parts = explode(' - ', trim($action2_value));
                $style_code = $parts[0] ?? '';
                $style_description = $parts[1] ?? '';
                if (!empty($style_code)) {
                    $grouped_data[$key]['style_codes'][] = $style_code;
                }
                if (!empty($style_description)) {
                    $grouped_data[$key]['style_descriptions'][] = $style_description;
                }
            } else {
                error_log("Valore vuoto in action2 per excelrow {$row['excelrow']}");
            }
        }

        // Crea il nuovo array excel_data aggregato
        $new_excel_data = [];
        foreach ($grouped_data as $key => $group) {
            $row_data = $group['data'];
            // Aggiorna action3 (STYLE CODE) e action4 (STYLE DESCRIPTION) con valori aggregati
            $row_data[$action3_index] = implode(' - ', array_unique($group['style_codes']));
            $row_data[$action4_index] = implode(' - ', array_unique($group['style_descriptions']));
            // Concatena gli excelrow con '+' per le righe aggregate
            $excelrow_value = count($group['excelrow']) > 1 ? implode('+', $group['excelrow']) : $group['excelrow'][0];
            $new_excel_data[] = [
                'data' => $row_data,
                'excelrow' => $excelrow_value
            ];
        }

        // Modifica excelData in-place
        $excelData = $new_excel_data;

        error_log("Routine Moncler completata - Righe aggregate: " . count($new_excel_data));
        error_log("Excelrow aggregati: " . print_r(array_column($new_excel_data, 'excelrow'), true));
    } catch (Exception $e) {
        error_log("Eccezione nella routine Moncler: " . $e->getMessage());
        throw $e;
    }
}