<?php
defined($security_key) or exit;

//------------------------------------------
// Marketing Files
//------------------------------------------

//Connect to DB
$pdo = dbConnect($dbname);

//SoldTo is empty
if (empty($partner->soldto) || $partner->soldto == ''){$soldto_search = '%';} else {$soldto_search = '-%';}

//default whereclause
$whereclause = '';

//NEW ARRAY
$criterias = [];   
$clause = '';

//Check for $_GET variables and build up clause
if(isset($get_content) && $get_content!=''){    
    //GET VARIABLES FROM URL
    $requests = explode("&", $get_content);     
    //Check for keys and values
    foreach ($requests as $y){
        $v = explode("=", $y);
        //INCLUDE VARIABLES IN ARRAY
        $criterias[$v[0]] = $v[1]; 
    
        if ($v[0] == 'page' || $v[0] =='p' || $v[0] =='totals' || $v[0] =='list' || $v[0] == 'action' || $v[0] =='success_msg' || $v[0] == '_t'){
        //do nothing
        } 
        elseif ($v[0] == 'folder_id') {
            if ($v[1] === 'null' || $v[1] === '') {
                $clause .= ' AND folder_id IS NULL';
            } else {
                $clause .= ' AND folder_id = :folder_id';
            }
        }
        elseif ($v[0] == 'search') {
            $clause .= ' AND (title LIKE :search OR original_filename LIKE :search)'; 
        }
        elseif ($v[0] == 'tag') {
            $clause .= ' AND EXISTS (SELECT 1 FROM marketing_file_tags ft JOIN marketing_tags t ON ft.tag_id = t.id WHERE ft.file_id = mf.id AND t.tag_name = :tag)';
        }
        elseif ($v[0] == 'file_type') {
            $clause .= ' AND file_type = :file_type';
        }
        else {
            // Ignore unknown parameters
        }
    }
    if ($whereclause == '' && $clause !=''){
        $whereclause = 'WHERE '.substr($clause, 4);
    } else {
        $whereclause .= $clause;
    }
}

//Set page 
$pagina = 1;
if(isset($criterias['p']) && $criterias['p'] !='') {
    $pagina = $criterias['p'];
}

//Set limit
$limit = 50;
if(isset($criterias['limit']) && $criterias['limit'] !='') {
    $limit = intval($criterias['limit']);
}
$offset = ($pagina - 1) * $limit;

//check for totals call
if(isset($criterias['totals'])){ 
    $sql = 'SELECT COUNT(*) as found FROM marketing_files mf '.$whereclause.' ';
    $stmt = $pdo->prepare($sql);
    
    // Bind parameters
    if (!empty($criterias)) {
        foreach ($criterias as $key => $value) {
            if ($key !== 'totals' && $key !== 'page' && $key !== 'p' && $key !== 'limit' && $key !== 'action') {
                if ($key == 'search') {
                    $stmt->bindValue(':'.$key, '%'.$value.'%');
                } elseif ($key == 'folder_id' && ($value === 'null' || $value === '')) {
                    continue;
                } else {
                    $stmt->bindValue(':'.$key, $value);
                }
            }
        }
    }
    
    $stmt->execute();
    $found = $stmt->fetchColumn();
    echo $found; 
    exit;  
}

// Main query
$sql = "SELECT 
    mf.*,
    GROUP_CONCAT(mt.tag_name) as tags
FROM marketing_files mf 
LEFT JOIN marketing_file_tags mft ON mf.id = mft.file_id 
LEFT JOIN marketing_tags mt ON mft.tag_id = mt.id
" . $whereclause . " 
GROUP BY mf.id
ORDER BY mf.created DESC
LIMIT " . $limit . " OFFSET " . $offset;

$stmt = $pdo->prepare($sql);

// Bind parameters
if (!empty($criterias)) {
    foreach ($criterias as $key => $value) {
        if ($key !== 'totals' && $key !== 'page' && $key !== 'p' && $key !== 'limit') {
            if ($key == 'search') {
                $stmt->bindValue(':'.$key, '%'.$value.'%');
            } elseif ($key == 'folder_id' && ($value === 'null' || $value === '')) {
                continue;
            } else {
                $stmt->bindValue(':'.$key, $value);
            }
        }
    }
}

$stmt->execute();
$marketing_files = $stmt->fetchAll(PDO::FETCH_ASSOC);

// Process each file
foreach ($marketing_files as &$file) {
    // Process tags
    $file['tags'] = $file['tags'] ? explode(',', $file['tags']) : [];
    
    // Format file size
    $bytes = $file['file_size'];
    if ($bytes >= 1073741824) {
        $file['file_size_formatted'] = number_format($bytes / 1073741824, 2) . ' GB';
    } elseif ($bytes >= 1048576) {
        $file['file_size_formatted'] = number_format($bytes / 1048576, 2) . ' MB';
    } elseif ($bytes >= 1024) {
        $file['file_size_formatted'] = number_format($bytes / 1024, 2) . ' KB';
    } else {
        $file['file_size_formatted'] = $bytes . ' B';
    }
}

// Return result
echo json_encode($marketing_files, JSON_UNESCAPED_UNICODE);
exit;