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Initial revision

""" Classes for displaying, browsing and organizing the archive
"""


import OSAS_helpers
from AccessControl import ClassSecurityInfo
from Products.PageTemplates.PageTemplateFile import PageTemplateFile
from OFS.Folder import Folder
from OFS.SimpleItem import SimpleItem
from Globals import InitializeClass,package_home
import zLOG
import os
import os.path
import stat

class OSAS_storeOnline(SimpleItem):
    """Webfrontend für das Storagesystem
    liefert Browserumgebung 
    """
    meta_type="OSAS_StoreOnline__neu"
    
    security=ClassSecurityInfo()

    _v_fileSystem={} #chache fuer filesystem
    
    def __init__(self,id):
        """initialize a new instance"""
        self.id = id

    

    security.declareProtected('View','index_html')
    def index_html(self):
        """main view either standard template or storeOnline_index.html in tree"""
        if hasattr(self,'storeOnline_index.html'):
            return getattr(self,'storeOnline_index.html')()
        else:
            pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','storeOnline_index_html.zpt')).__of__(self)
            return pt()


   

    def readObjectsFromPath(self,path=""):
        """Liest files aus dem path und speichert im cache _v_filesystem.
         - to do: files aus metadaten

        @param path : path relativ zum root folder des Storagesystems
        """
                       
        realPath=os.path.normpath(os.path.join(self.rootFolderName,path))
        metaData=self.testmd #test
        
        if realPath.find(self.rootFolderName) <0: #versuch auf Pfad unterhalb des Rootfolder zuzugreifen
            return {}
            
        
        if not os.path.exists(realPath):
            return None,"(ERROR) path %s does not exist."%path

        stats=os.stat(realPath)

        # teste ob schon im cache
        #if self._v_fileSystem.has_key(realPath) and (self._v_fileSystem[realPath][0]==stats[stat.ST_MTIME]):
            
        #    return self._v_fileSystem[realPath][1]

        dir=os.listdir(realPath)
        ret={}
        for filename in dir:
            object=os.path.join(realPath,filename)
            fileType=OSAS_helpers.checkOSASFileType(object)
            
            if fileType:
                ret[object]=(fileType,metaData.getDisplayFieldsAsStr(object))
            
        self._v_fileSystem[realPath]=(stats[stat.ST_MTIME],ret) # speicher im chache
        
        return ret

    def giveHandlers(self,path,type):
        """teste ob für diese Typ, viewer definiert sind"""
        ret=[]
        
        for viewer in self.ZopeFind(self.aq_parent,obj_metatypes=['OSAS_ViewerObject__neu'],search_sub=1):
            if type in viewer[1].objectTypes:
                path=path.replace(getattr(viewer[1],'ignorePath',''),'')
                url=viewer[1].prefix%path
                text=viewer[1].title
                string="""<a target="_blank" href="%s">%s</a>"""%(url,text)
                ret.append(string)
        return ret
                      
        
    def generateTree(self,path=""):
        """erzeuge navigations elemente"""
        objects=self.readObjectsFromPath(path)
        def sortLow(x,y):
            return cmp(x.lower(),y.lower())
        
        ret=[]
        
        objectSorted=objects.keys()
        objectSorted.sort(sortLow)
        for object in objectSorted:
            handler=self.giveHandlers(object,objects[object][0])
            if objects[object][0]=="OSAS_dir":
                
                string="""<a href="?path=%s">%s</a>"""%(object,os.path.split(object)[1])
                
                ret.append((string,handler,objects[object][1]))
            else:
                ret.append((os.path.split(object)[1],handler,objects[object][1]))

                     
        return ret


    def path_to_link(self,pathTmp=""):
        """generates navigation bar for viewfiles"""

        path=os.path.normpath(os.path.join(self.rootFolderName,pathTmp))
        
        URL=self.absolute_url()
        string=""
        
        tmppath=os.path.dirname(path)
        i=0
        pathes=[[path, os.path.basename(path)]]

        while not (len(tmppath)==1):

              i=i+1
              if i>20: break

              pathes.append([tmppath, os.path.basename(tmppath)])
              tmppath=os.path.dirname(tmppath)

        while i>=0:
            if pathes[i][0].find(self.rootFolderName) <0: #versuch auf Pfad unterhalb des Rootfolder zuzugreifen
                string=string+"<a>"+pathes[i][1]+"</a>/"
            else:
                string=string+"<a href="+URL+"?path="+pathes[i][0]+">"+pathes[i][1]+"</a>/"
            
            i=i-1
        return string

    def getMetaFile(self,path):
        """Lese Metafile ein"""
        return OSAS_helpers.getMetaFile(path)

InitializeClass(OSAS_storeOnline)
	
def manage_addOSAS_storeOnlineForm(self):
    """interface for adding the OSAS_root"""
    pt=PageTemplateFile(os.path.join(package_home(globals()),'zpt','addStoreOnline.zpt')).__of__(self)
    return pt()

def manage_addOSAS_storeOnline(self,id,RESPONSE=None):
    """add the OSAS_root"""
    newObj=OSAS_storeOnline(id)
    self._setObject(id,newObj)
    if RESPONSE is not None:
        RESPONSE.redirect('manage_main')