<?php
/**
 * MVP Setup page for DeclarationTVA module
 * Advanced multi-select PCG account mapping using Dolibarr native style
 */

// Load Dolibarr environment
if (file_exists('../../main.inc.php')) {
    $res = @include '../../main.inc.php';
} elseif (file_exists('../../../main.inc.php')) {
    $res = @include '../../../main.inc.php';
} else {
    $res = 0;
}

if (!$res) {
    die("Include of main fails");
}

// Libraries
require_once DOL_DOCUMENT_ROOT."/core/lib/admin.lib.php";
require_once DOL_DOCUMENT_ROOT.'/core/class/html.form.class.php';
require_once DOL_DOCUMENT_ROOT . '/custom/declarationtva/core/class/declarationtva_config.class.php';

// Access control
if (!$user->hasRight("declarationtva", "declarationtva", "admin")) {
    accessforbidden();
}

// Load language files
$langs->load("declarationtva@declarationtva");

// Initialize objects
$config = new DeclarationTVA_Config($db, $conf->entity);
$form = new Form($db);

// Handle form submission
$action = GETPOST('action', 'alpha');
if ($action == 'update_mappings') {
    $ca3_definitions = $config->getCA3LineDefinitions();
    $updated_count = 0;
    
    
    foreach ($ca3_definitions as $line => $definition) {
        // Special handling for lines 08, 09, 9B (need both base and VAT accounts)
        if (in_array($line, array('08', '09', '9B'))) {
            $base_account_codes = GETPOST('base_account_codes_' . $line, 'array');
            $vat_account_codes = GETPOST('vat_account_codes_' . $line, 'array');
            
            // Always process base accounts (even if empty)
            $result = $config->updateAccountMapping($line . '_BASE', $base_account_codes);
            if ($result) {
                $updated_count++;
            }
            
            // Always process VAT accounts (even if empty)
            $result = $config->updateAccountMapping($line . '_VAT', $vat_account_codes);
            if ($result) {
                $updated_count++;
            }
        } else {
            // Normal processing for other lines
            $account_codes = GETPOST('account_codes_' . $line, 'array');
            
            // Always process account mappings (even if empty)
            $result = $config->updateAccountMapping($line, $account_codes);
            if ($result) {
                $updated_count++;
            }
        }
    }
    
    if ($updated_count > 0) {
        setEventMessages($langs->trans("ConfigurationUpdated"), null, 'mesgs');
    } else {
        setEventMessages($langs->trans("NoChangesDetected"), null, 'warnings');
    }
}

// Get current mappings
$mappings_by_line = $config->getAccountMappingsByLine();
$accounts = $config->getAccountingAccounts();
$ca3_definitions = $config->getCA3LineDefinitions();

// Ensure table exists (create if missing)
$table_name = MAIN_DB_PREFIX . "declarationtva_account_mappings";
$check_table_sql = "SHOW TABLES LIKE '" . $table_name . "'";
$table_exists = $db->query($check_table_sql);
if (!$table_exists || $db->num_rows($table_exists) == 0) {
    // Create the table if it doesn't exist
    $create_table_sql = "CREATE TABLE IF NOT EXISTS `" . $table_name . "` (
        `rowid` int(11) NOT NULL AUTO_INCREMENT,
        `entity` int(11) NOT NULL DEFAULT 1,
        `ca3_line` varchar(8) NOT NULL COMMENT 'A1, A2, A3, A4, A5, 08, 09, 9B, 17, 20, 21, 22, 25, 26, 28, 29',
        `account_code` varchar(32) NOT NULL COMMENT 'PCG account code',
        `account_label` varchar(255) DEFAULT NULL,
        `vat_rate` decimal(5,2) DEFAULT NULL,
        `is_active` tinyint(1) DEFAULT 1,
        `created_date` datetime DEFAULT NULL,
        PRIMARY KEY (`rowid`),
        UNIQUE KEY `uk_mapping_entity_line_account` (`entity`, `ca3_line`, `account_code`),
        KEY `idx_ca3_line` (`ca3_line`),
        KEY `idx_account_code` (`account_code`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci";
    
    $db->query($create_table_sql);
}
$section_headers = $config->getCA3SectionHeaders();

// Page title
$title = $langs->trans("DeclarationTVASetup");
llxHeader('', $title);

// Print page header
print load_fiche_titre($title, '', 'title_accountancy');


// Use Dolibarr's native tab system
$head = array();
$head[0][0] = $_SERVER['PHP_SELF'] . '?tab=mapping';
$head[0][1] = $langs->trans("PCGMapping");
$head[0][2] = 'mapping';
$head[1][0] = $_SERVER['PHP_SELF'] . '?tab=templates';
$head[1][1] = $langs->trans("TemplateManagement");
$head[1][2] = 'templates';

$tab = GETPOST('tab', 'alpha');
if (empty($tab)) {
    $tab = 'mapping';
}

print dol_get_fiche_head($head, $tab, $langs->trans("DeclarationTVASetup"), -1, "declarationtva@declarationtva");

// Tab 1: PCG Mapping
if ($tab == 'mapping') {
print '<form method="POST" action="' . $_SERVER['PHP_SELF'] . '">';
print '<input type="hidden" name="action" value="update_mappings">';
print '<input type="hidden" name="token" value="' . newToken() . '">';

print '<div class="fiche">';
print '<div class="titre">' . $langs->trans("DeclarationTVAPCGMapping") . '</div>';

// Group CA-3 lines by section
$lines_by_section = array();
foreach ($ca3_definitions as $line => $definition) {
    $section = $definition['section'];
    if (!isset($lines_by_section[$section])) {
        $lines_by_section[$section] = array();
    }
    $lines_by_section[$section][$line] = $definition;
}

// Print each section
foreach ($lines_by_section as $section_code => $lines) {
    $section_info = $section_headers[$section_code];
    
    // Section header
    print '<div class="titre">' . $section_info['title'] . '</div>';
    print '<div class="info">' . $section_info['description'] . '</div>';
    if (isset($section_info['notice'])) {
        print '<div class="info"><strong>Référence:</strong> ' . $section_info['notice'] . '</div>';
    }
    
    // Skip D-section lines (25, 26, 28, 29) as they are calculated
    if ($section_code == 'D') {
        print '<div class="info"><strong>Note:</strong> Les lignes de la section D sont calculées automatiquement à partir des autres sections.</div>';
        continue;
    }
    
    print '<table class="noborder centpercent">';
    print '<tr class="liste_titre">';
    print '<th>' . $langs->trans("CA3Line") . '</th>';
    print '<th>' . $langs->trans("LineLabel") . '</th>';
    print '<th>' . $langs->trans("Description") . '</th>';
    print '<th>' . $langs->trans("PCGAccounts") . '</th>';
    print '<th>' . $langs->trans("AccountSelection") . '</th>';
    print '</tr>';

    foreach ($lines as $line => $definition) {
        print '<tr>';
        print '<td><strong>' . $line . '</strong></td>';
        print '<td>' . $definition['label'] . '</td>';
        print '<td><small>' . $definition['description'] . '</small></td>';
        print '<td><small>' . $definition['pcg_accounts'] . '</small></td>';
        print '<td>';
        
        // Create account options array for Dolibarr multi-select
        $account_options = array();
        foreach ($accounts as $account) {
            $account_options[$account['account_number']] = $account['account_number'] . ' - ' . $account['label'];
        }
        
        // Special handling for lines 08, 09, 9B (need both base and VAT accounts)
        if (in_array($line, array('08', '09', '9B'))) {
            // Load separate mappings for base and VAT
            $base_selected_accounts = isset($mappings_by_line[$line . '_BASE']) ? $mappings_by_line[$line . '_BASE'] : array();
            $vat_selected_accounts = isset($mappings_by_line[$line . '_VAT']) ? $mappings_by_line[$line . '_VAT'] : array();
            
            print '<div style="margin-bottom: 10px;">';
            print '<strong>Comptes de base (ventes):</strong><br>';
            print $form->multiselectarray('base_account_codes_' . $line, $account_options, $base_selected_accounts, 0, 0, '', 0, '200px');
            print '</div>';
            print '<div>';
            print '<strong>Comptes de TVA:</strong><br>';
            print $form->multiselectarray('vat_account_codes_' . $line, $account_options, $vat_selected_accounts, 0, 0, '', 0, '200px');
            print '</div>';
        } else {
            // Normal single selection for other lines
            $selected_accounts = isset($mappings_by_line[$line]) ? $mappings_by_line[$line] : array();
            print $form->multiselectarray('account_codes_' . $line, $account_options, $selected_accounts, 0, 0, '', 0, '200px');
        }
        print '</td>';
        print '</tr>';
    }

    print '</table>';
    print '<br>';
}

print '<div class="titre">' . $langs->trans("Actions") . '</div>';
print '<input type="submit" class="button" value="' . $langs->trans("UpdateConfiguration") . '">';
print '</div>';

print '</form>';

// Print current configuration summary
print '<div class="fiche">';
print '<div class="titre">' . $langs->trans("CurrentConfiguration") . '</div>';

if (empty($mappings_by_line)) {
    print '<div class="info">' . $langs->trans("NoConfigurationFound") . '</div>';
} else {
    // Group by section for display
    $mappings_by_section = array();
    foreach ($mappings_by_line as $line => $account_codes) {
        if (isset($ca3_definitions[$line])) {
            $section = $ca3_definitions[$line]['section'];
            if (!isset($mappings_by_section[$section])) {
                $mappings_by_section[$section] = array();
            }
            $mappings_by_section[$section][$line] = $account_codes;
        }
    }
    
    foreach ($mappings_by_section as $section_code => $section_mappings) {
        $section_info = $section_headers[$section_code];
        
        print '<div class="titre">' . $section_info['title'] . '</div>';
        
        print '<table class="noborder centpercent">';
        print '<tr class="liste_titre">';
        print '<th>' . $langs->trans("CA3Line") . '</th>';
        print '<th>' . $langs->trans("SelectedAccounts") . '</th>';
        print '<th>' . $langs->trans("AccountCount") . '</th>';
        print '</tr>';

        foreach ($section_mappings as $line => $account_codes) {
            print '<tr>';
            print '<td><strong>' . $line . '</strong></td>';
            print '<td>' . implode(', ', $account_codes) . '</td>';
            print '<td>' . count($account_codes) . '</td>';
            print '</tr>';
        }
        print '</table>';
        print '<br>';
    }
}

} elseif ($tab == 'templates') {
    // Tab 2: Template Management
    print '<div class="fichecenter">';
    print '<div class="fichehalfleft">';

// Load PDF class
require_once DOL_DOCUMENT_ROOT . '/custom/declarationtva/core/class/declarationtva_pdf.class.php';
$pdf_generator = new DeclarationTVA_PDF($db);

// Handle template upload
if ($action == 'upload_template') {
    $uploaded_file = $_FILES['template_file'];
    if ($pdf_generator->uploadCustomTemplate($uploaded_file)) {
        setEventMessages($langs->trans("TemplateUploaded"), null, 'mesgs');
    } else {
        setEventMessages($pdf_generator->error, null, 'errors');
    }
}

// Handle template reset
if ($action == 'reset_template') {
    if ($pdf_generator->resetToDefaultTemplate()) {
        setEventMessages($langs->trans("TemplateReset"), null, 'mesgs');
    } else {
        setEventMessages($langs->trans("TemplateResetFailed"), null, 'errors');
    }
}

// Handle template update
if ($action == 'update_template') {
    if ($pdf_generator->autoUpdateTemplate()) {
        setEventMessages($langs->trans("TemplateUpdated"), null, 'mesgs');
    } else {
        setEventMessages($pdf_generator->error ?: $langs->trans("TemplateUpdateFailed"), null, 'errors');
    }
}

// Get template information
$template_info = $pdf_generator->getTemplateInfo();

// Get update status
$update_status = $pdf_generator->getTemplateUpdateStatus();

print '<form name="template_form" method="POST" enctype="multipart/form-data">';
print '<input type="hidden" name="token" value="' . newToken() . '">';
print '<input type="hidden" name="action" value="upload_template">';

print '<table class="noborder centpercent">';
print '<tr class="liste_titre">';
print '<td colspan="2"><strong>Gestion des modèles PDF CA-3</strong></td>';
print '</tr>';

print '<tr>';
print '<td><strong>Modèle actuel</strong></td>';
print '<td>';
if ($template_info['custom_template']) {
    print '<span class="badge badge-status4">Modèle personnalisé</span>';
} else {
    print '<span class="badge badge-status1">Modèle officiel</span>';
}
print '</td>';
print '</tr>';

print '<tr>';
print '<td><strong>Version actuelle</strong></td>';
print '<td>' . $template_info['official_number'] . '</td>';
print '</tr>';

// Update status
if ($update_status['update_available']) {
    print '<tr class="warning">';
    print '<td><strong>Mise à jour disponible</strong></td>';
    print '<td>';
    print '<span class="badge badge-status4">Version ' . $update_status['latest_version'] . ' disponible</span>';
    print ' <a href="' . $_SERVER['PHP_SELF'] . '?action=update_template&token=' . newToken() . '" class="button button-save">Mettre à jour</a>';
    print '</td>';
    print '</tr>';
} else {
    print '<tr>';
    print '<td><strong>Statut</strong></td>';
    print '<td><span class="badge badge-status1">À jour</span></td>';
    print '</tr>';
}

if (!empty($update_status['error'])) {
    print '<tr class="error">';
    print '<td><strong>Erreur</strong></td>';
    print '<td>' . $update_status['error'] . '</td>';
    print '</tr>';
}

print '<tr>';
print '<td><strong>Nouveau modèle</strong></td>';
print '<td>';
print '<input type="file" name="template_file" accept=".pdf" required>';
print '<br><small>Format PDF uniquement, taille max 10MB</small>';
print '</td>';
print '</tr>';

print '<tr>';
print '<td colspan="2" class="center">';
print '<input type="submit" class="button" value="Télécharger le modèle">';
print '</td>';
print '</tr>';

if ($template_info['custom_template']) {
    print '<tr>';
    print '<td colspan="2" class="center">';
    print '<a href="' . $_SERVER['PHP_SELF'] . '?action=reset_template&token=' . newToken() . '" class="button button-delete">Revenir au modèle officiel</a>';
    print '</td>';
    print '</tr>';
}

print '</table>';
print '</form>';

print '</div>';
print '</div>';

    print '</div>'; // Close fichehalfleft
    print '</div>'; // Close fichecenter
}

// Print footer
llxFooter();
?>