<?php function userPermissions() {
    $user = u();
    if(!is_null($user)) {
        $userLevel = $user->level;
        $userLevelIndex = getLevelIndex($userLevel);
        $userLevelPermissions = db("types")
        ->where(function($query) use($userLevelIndex){
            $query->where("read", $userLevelIndex)
            ->orWhere("read", "like", "$userLevelIndex,%")
            ->orWhere("read", "like", "%,$userLevelIndex")
            ->orWhere("read", "like", "%,$userLevelIndex,%");
        })
        ->get()
        ->pluck("title")
        ->join(",");
        
        $allPermissions = $userLevelPermissions;
        return @explode(",",$allPermissions);
    }
    
} 

function isAuth($moduleType, $permissionType="read") {
    $user = u();
    // user no, full control, write, read, modify

    if(!is_null($user)) {
        // Admin users have full access to everything
        if ($user->level == "Admin") {
            return true;
        }
        
        // Use session cache to avoid repeated DB queries
        $cacheKey = "isauth_{$user->id}_{$moduleType}_{$permissionType}";
        
        // Check if result is already in session cache
        if (session()->has($cacheKey)) {
            return session($cacheKey);
        }
        
        // Not in cache - query database
        $userLevel = $user->level;
        $userLevelIndex = getLevelIndex($userLevel);
        $singlePermission = db("types")->where("slug", $moduleType)
        ->where(function($query) use($userLevelIndex, $permissionType){
            $query->orWhere($permissionType, "like", "%,$userLevelIndex,%");
            $query->orWhere($permissionType, "like", "%,$userLevelIndex");
            $query->orWhere($permissionType, "like", "$userLevelIndex,%");
            $query->orWhere($permissionType, $userLevelIndex);
        })
        ->first();
        
        $result = !is_null($singlePermission);
        
        // Store result in session cache for future calls
        session([$cacheKey => $result]);
        
        return $result;
    }
    
    return false;
}
?>