#-*- mode: python; mode: fold -*-
from Globals import InitializeClass
from AccessControl import ClassSecurityInfo

from Products.CMFCore.utils import UniqueObject, getToolByName
from Products.CMFCore.permissions import View
from Products.CMFCore.permissions import ModifyPortalContent
from Products.CPSCore.CPSBase import CPSBase_adder, CPSBaseFolder
#from Products.CPSCore.CPSBase import CPSBaseDocument as BaseDocument
from Products.CPSDocument.CPSDocument import CPSDocument
from Products.CPSCore.CPSBase import CPSBaseBTreeFolder as BaseBTreeFolder
from Products.WAeUP_SRP.WAeUPTables import AccommodationTable,NOT_OCCUPIED
from WAeUPImport import ApplicationImport,CertificateImport,CertificateCourseImport
from WAeUPImport import CourseImport,CourseResultImport,PaymentImport
from WAeUPImport import DepartmentImport,FacultyImport,StudentImport,VerdictImport,StudentStudyLevelImport
from WAeUPImport import NO_KEY,IGNORE

import logging
import csv,re,os
import Globals
import DateTime
import re
p_home = Globals.package_home(globals())
i_home = Globals.INSTANCE_HOME
storage_path = "%s/%s" % (i_home,'import')

class UploadsFolder(CPSDocument): ###(
    """
    WAeUP UploadsFolder containing Uploads
    """
    meta_type = 'UploadsFolder'
    portal_type = meta_type
    security = ClassSecurityInfo()

    security.declareProtected(View,"Title")
    def Title(self):
        """compose title"""
        return "Upload Section"


InitializeClass(UploadsFolder)

def addUploadsFolder(container, id, REQUEST=None, **kw):
    """Add a UploadFolder."""
    ob = UploadsFolder(id, **kw)
    return CPSBase_adder(container, ob, REQUEST=REQUEST)
###)

class Upload(CPSDocument): ###(
    """
    WAeUP Upload
    """
    meta_type = 'Upload'
    portal_type = meta_type
    security = ClassSecurityInfo()
    NO_KEY = NO_KEY
    IGNORE = IGNORE
    def getImporter(self):
        importer_name = ''.join([part.capitalize() for part in self.getContent().import_layout.split('_')])
        importer = eval("%sImport" % importer_name)(self)
        return importer

    security.declareProtected(View,"Title") ###(
    def Title(self):
        """compose title"""
        return self.title
    ###)

    security.declareProtected(View,"checkKeys") ###(
    def checkKeys(self):
        """check fields in csv-headline"""
        doc = self.getContent()
        csv_path = os.path.join(storage_path,doc.filename)
        importer = self.getImporter()
        msg = ''
        invalid_keys = []
        keys = []
        if not os.path.exists(csv_path):
            base,ext = os.path.splitext(csv_path)
            if os.path.exists("%(base)s.done" % vars()):
            #import pdb;pdb.set_trace()
                #msg = "imported"
                pass
            else:
                base_path = os.path.split(csv_path)[1]
                msg = '+ no such file %(base_path)s +' % vars()
        else:
            reader = csv.reader(open(csv_path,"rb"))
            headline = reader.next()
            values = reader.next()
            if "import_mode" not in headline:
                msg += '+ import_mode must be in heading +'
            invalid_keys = importer.checkHeadline(headline)
            if invalid_keys:
                msg += "+ invalid keys in heading +"
            err,keys = importer.getHeadlineFields(headline,values)
            if err:
                msg += err
        return msg,keys
    ###)

    security.declareProtected(View,"getKeys") ###(
    def getKeys(self):
        """return the valid keys for headline"""
        importer = self.getImporter()
        keys = importer.schema.keys()
        keys.sort()
        return keys
    ###)

    security.declareProtected(View,"getUploadFileInfo") ###(
    def getUploadFileInfo(self):
        """return the valid keys for headline"""
        doc = self.getContent()
        return os.stat(os.path.join(storage_path,doc.filename))
    ###)

    security.declareProtected(ModifyPortalContent,"getPending") ###(
    def getPending(self):
        """return pending-data"""
        importer = self.getImporter()
        data = open(importer.pending_path).read()
        return importer.pending_fn,data
        
    security.declareProtected(ModifyPortalContent,"getData") ###(
    def getData(self):
        """return data"""
        data_path = "%s/import/%s" % (i_home,self.filename)
        data = open(data_path).read()
        return self.filename,data        

    security.declareProtected(ModifyPortalContent,"getErrors") ###(
    def getErrors(self):
        """return import_errors"""
        import tempfile
        importer = self.getImporter()
        lines = []
        filename = self.getContent().filename
        data = open(importer.pending_path)
        reader = csv.reader(data)
        headline = reader.next()
        reader = csv.DictReader(data,headline)
        # imported_from_pos = headline.index('imported_from')
        # imported_line_nr_pos = headline.index('imported_line_nr')
        out_file = tempfile.TemporaryFile()
        writer = csv.DictWriter(out_file,
                                importer.info.keys(),
                                extrasaction='ignore')
        lines += dict([(k,k) for k in importer.info.keys()]),
        #import pdb;pdb.set_trace()
        for item in reader:
            if item["imported_from"] == filename:
                lines += item,
        writer.writerows(lines)
        out_file.seek(0)
        return out_file.read()

    security.declareProtected(ModifyPortalContent,"editHeadline") ###(
    def editHeadline(self,key_pairs):
        """edit headline"""
        csv_path = os.path.join(storage_path,self.filename)
        reader = csv.reader(open(csv_path,"rb"))
        headline = reader.next()
        records = [record for record in reader]
        #import pdb;pdb.set_trace()
        for old,new,pos in key_pairs:
            del headline[pos]
            headline.insert(pos,new)
        writer = csv.writer(open(csv_path,"w"))
        writer.writerow(headline)
        writer.writerows(records)


InitializeClass(Upload)


def addUpload(container, id, REQUEST=None, **kw):
    """Add a Upload."""
    ob = Upload(id, **kw)
    return CPSBase_adder(container, ob, REQUEST=REQUEST)
###)