#-*- mode: python; mode: fold -*-
# (C) Copyright 2005 AixtraWare <http://aixtraware.de>
# Author: Joachim Schmitz <js@aixtraware.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
#
# $Id: WAeUPTables.py 1815 2007-05-23 22:06:43Z henrik $

from zope.interface import implements
from Globals import InitializeClass
from Products.ZCatalog.ZCatalog import ZCatalog
from Products.ZCatalog.ProgressHandler import ZLogHandler
from AccessControl import ClassSecurityInfo
from Products.CMFCore.permissions import ModifyPortalContent
import urllib
import DateTime,time
import csv,re
import logging
import Globals
p_home = Globals.package_home(globals())
i_home = Globals.INSTANCE_HOME
from Products.AdvancedQuery import Eq, Between, Le,In

from interfaces import IWAeUPTable

class AttributeHolder(object):
    pass

def dict2ob(dict):
    ob = AttributeHolder()
    for key, value in dict.items():
        setattr(ob, key, value)
    return ob


class WAeUPTable(ZCatalog): ###(

    implements(IWAeUPTable)
    security = ClassSecurityInfo()

    def refreshCatalog(self, clear=0, pghandler=None):
        """ don't refresh for a normal table """

        if self.REQUEST and self.REQUEST.RESPONSE:
            self.REQUEST.RESPONSE.redirect(
              URL1 +
              '/manage_catalogAdvanced?manage_tabs_message=Catalog%20refresh%20not%20implemented')

    def manage_catalogClear(self, REQUEST=None, RESPONSE=None, URL1=None):
        """ clears the whole enchilada """
        #self._catalog.clear()

        if REQUEST and RESPONSE:
            RESPONSE.redirect(
              URL1 +
              '/manage_catalogAdvanced?manage_tabs_message=Catalog%20Clearing%20disabled')

    def addRecord(self, **data):
        # The uid is the same as "bed".
        uid = data[self.key]
        res = self.searchResults({"%s" % self.key : uid})
        if len(res) > 0:
            raise ValueError("More than one record with uid %s" % uid)
        self.catalog_object(dict2ob(data), uid=uid)
        return uid

    def deleteRecord(self, uid):
        self.uncatalog_object(uid)

    def searchAndSetRecord(self, **data):
        raise NotImplemented

    def modifyRecord(self, **data):
        #records = self.searchResults(uid=uid)
        uid = data[self.key]
        records = self.searchResults({"%s" % self.key : uid})
        if len(records) > 1:
            # Can not happen, but anyway...
            raise ValueError("More than one record with uid %s" % uid)
        if len(records) == 0:
            raise KeyError("No record for uid %s" % uid)
        record = records[0]
        record_data = {}
        for field in self.schema() + self.indexes():
            record_data[field] = getattr(record, field)
        # Add the updated data:
        record_data.update(data)
        self.catalog_object(dict2ob(record_data), uid)

    def reindexIndex(self, name, REQUEST,pghandler=None):
        if isinstance(name, str):
            name = (name,)
        paths = self._catalog.uids.items()
        i = 0
        #import pdb;pdb.set_trace()
        for p,rid in paths:
            i += 1
            metadata = self.getMetadataForRID(rid)
            record_data = {}
            for field in name:
                record_data[field] = metadata.get(field)
            uid = metadata.get(self.key)
            self.catalog_object(dict2ob(record_data), uid, idxs=name,
                                update_metadata=0)

    security.declareProtected(ModifyPortalContent,"exportAllRecords")
    def exportAllRecords(self):
        "export a WAeUPTable"
        #import pdb;pdb.set_trace()
        fields = [field for field in self.schema()]
        format = ','.join(['"%%(%s)s"' % fn for fn in fields])
        csv = []
        csv.append(','.join(['"%s"' % fn for fn in fields]))
        for uid in self._catalog.uids:
            records = self.searchResults({"%s" % self.key : uid})
            if len(records) > 1:
                # Can not happen, but anyway...
                raise ValueError("More than one record with uid %s" % uid)
            if len(records) == 0:
                raise KeyError("No record for uid %s" % uid)
            rec = records[0]
            csv.append(format % rec)
        current = DateTime.DateTime().strftime("%d-%m-%y_%H_%M_%S")
        open("%s/import/%s-%s.csv" % (i_home,self.getId(),current),"w+").write('\n'.join(csv))

###)

class AccommodationTable(WAeUPTable): ###(

    meta_type = 'WAeUP Accommodation Tool'
    name = "accommodation"
    key = "bed"
    def __init__(self):
        WAeUPTable.__init__(self, 'portal_accommodation')

    def searchAndReserveBed(self, student_id,bed_type):
        records = self.searchResults({'student' : student_id})
        if len(records) > 0:
            return -1,"Student with Id %s already booked bed %s." % (student_id,records[0].bed)

        records = [r for r in self.searchResults({'bed_type' : bed_type}) if not r.student]
        #import pdb;pdb.set_trace()
        if len(records) == 0:
            return -2,"No bed available"
        rec = records[0]
        self.modifyRecord(bed=rec.bed,student=student_id)
        s_logger = logging.getLogger('WAeUPTables.AccommodationTable.searchAndReserveBed')
        s_logger.info('%s reserved bed %s' % (student_id,rec.bed))
        return 1,rec.bed


InitializeClass(AccommodationTable)

###)

class PinTable(WAeUPTable): ###(
    from ZODB.POSException import ConflictError
    meta_type = 'WAeUP Pin Tool'
    name = "pins"
    key = 'pin'
    def __init__(self):
        WAeUPTable.__init__(self, 'portal_pins')


    def searchAndSetRecord(self, uid, student_id,prefix):
        #records = self.searchResults(uid=uid)
        records = self.searchResults(student = student_id)
        #import pdb;pdb.set_trace()
        if len(records) > 0 and prefix in ('CLR','APP'):
            for r in records:
                if r.pin != uid and r.prefix_batch.startswith(prefix):
                    return -2
        records = self.searchResults({"%s" % self.key : uid})
        if len(records) > 1:
            # Can not happen, but anyway...
            raise ValueError("More than one record with uid %s" % uid)
        if len(records) == 0:
            return -1
        record = records[0]
        if record.student == "":
            record_data = {}
            for field in self.schema() + self.indexes():
                record_data[field] = getattr(record, field)
            # Add the updated data:
            record_data['student'] = student_id
            try:
                self.catalog_object(dict2ob(record_data), uid)
                return 1
            except ConflictError:
                return 2
        if record.student.upper() != student_id.upper():
            return 0
        if record.student.upper() == student_id.upper():
            return 2
        return -3

InitializeClass(PinTable)

###)

class PumeResultsTable(WAeUPTable): ###(

    meta_type = 'WAeUP PumeResults Tool'
    name = "pumeresults"
    key = "jamb_reg_no"
    def __init__(self):
        WAeUPTable.__init__(self, 'portal_pumeresults')


InitializeClass(PumeResultsTable)

###)

class StudentsCatalog(WAeUPTable): ###(
    security = ClassSecurityInfo()

    meta_type = 'WAeUP Students Catalog'
    name = "students_catalog"
    key = "id"
    affected_types = {   ###(
                      'StudentApplication':
                          {'id': 'application',
                           'fields':
                             ('jamb_reg_no',
                              'entry_mode',
                              #'entry_level',
                              'entry_session',
                              )
                              },
                      'StudentClearance':
                          {'id': 'clearance',
                           'fields':
                             ('matric_no',
                              )
                              },
                         'StudentPersonal':
                          {'id': 'personal',
                           'fields':
                             ('name',
                              'sex',
                              'email',
                              'phone',
                              )
                              },
                         'StudentStudyCourse':
                          {'id': 'study_course',
                           'fields':
                             ('course',
                              'faculty',
                              'department',
                              'level',
                              'mode',
                              'session',
                              'verdict',
                              )
                              },
                         }
    ###)

    def __init__(self):
        WAeUPTable.__init__(self, 'students_catalog')
        return

    def manage_catalogClear(self, REQUEST=None, RESPONSE=None, URL1=None):
        """ clears the whole enchilada """
        self._catalog.clear()

        if REQUEST and RESPONSE:
            RESPONSE.redirect(
              URL1 +
              '/manage_catalogAdvanced?manage_tabs_message=Catalog%20Cleared')

    def manage_catalogReindex(self, REQUEST, RESPONSE, URL1): ###(
        """ clear the catalog, then re-index everything """

        elapse = time.time()
        c_elapse = time.clock()

        pgthreshold = self._getProgressThreshold()
        handler = (pgthreshold > 0) and ZLogHandler(pgthreshold) or None
        self.refreshCatalog(clear=1, pghandler=handler)

        elapse = time.time() - elapse
        c_elapse = time.clock() - c_elapse

        RESPONSE.redirect(
            URL1 +
            '/manage_catalogAdvanced?manage_tabs_message=' +
            urllib.quote('Catalog Updated \n'
                         'Total time: %s\n'
                         'Total CPU time: %s' % (`elapse`, `c_elapse`)))
    ###)

    def get_from_doc_department(self,doc): ###(
        "return the students department"
        if doc is None:
            return None
        certificate_res = self.portal_catalog(id = doc.study_course)
        if len(certificate_res) != 1:
            return None
        return certificate_res[0].getPath().split('/')[-3]

    def get_from_doc_faculty(self,doc):
        "return the students faculty"
        if doc is None:
            return None
        certificate_res = self.portal_catalog(id = doc.study_course)
        if len(certificate_res) != 1:
            return None
        return certificate_res[0].getPath().split('/')[-4]

    def get_from_doc_level(self,doc):
        "return the students level"
        if doc is None:
            return None
        return getattr(doc,'current_level',None)

    def get_from_doc_mode(self,doc):
        "return the students mode"
        if doc is None:
            return None
        cm = getattr(doc,'current_mode',None)
        return cm


    def get_from_doc_session(self,doc):
        "return the students current_session"
        if doc is None:
            return None
        return getattr(doc,'current_session',None)

    def get_from_doc_entry_session(self,doc):
        "return the students entry_session"
        if doc is None:
            return None
        es = getattr(doc,'entry_session',None)
        if es is not None and len(es) == 2:
            return es
        try:
            digit = int(doc.jamb_reg_no[0])
        except:
            return "xx"
        if digit < 8:
            return "0%c" % doc.jamb_reg_no[0]
        return "9%c" % doc.jamb_reg_no[0]

    def get_from_doc_session(self,doc):
        "return the students session"
        if doc is None:
            return None
        return getattr(doc,'current_session',None)

    def get_from_doc_course(self,doc):
        "return the students study_course"
        if doc is None:
            return None
        return getattr(doc,'study_course',None)

    def get_from_doc_name(self,doc):
        "return the students name from the personal"
        if doc is None:
            return None
        return "%s %s %s" % (doc.firstname,doc.middlename,doc.lastname)

    def get_from_doc_verdict(self,doc):
        "return the students study_course"
        if doc is None:
            return None
        return getattr(doc,'current_verdict',None)
    ###)

    def reindexIndex(self, name, REQUEST,pghandler=None): ###(
        if isinstance(name, str):
            name = (name,)
        reindextypes = {}
        reindex_special = []
        #import pdb;pdb.set_trace()
        for n in name:
            if n in ("review_state","registered_courses"):
                reindex_special.append(n)
            else:
                for pt in self.affected_types.keys():
                    if n in self.affected_types[pt]['fields']:
                        if reindextypes.has_key(pt):
                            reindextypes[pt].append(n)
                        else:
                            reindextypes[pt]= [n]
                        break
        students = self.portal_catalog(portal_type="Student")
        aq_portal = self.portal_catalog.evalAdvancedQuery
        num_objects = len(students)
        if pghandler:
            pghandler.init('Refreshing catalog: %s' % self.absolute_url(1), num_objects)
        noattr = set(('StudentClearance','StudentPersonal')) & set(reindextypes.keys())
        for i in xrange(num_objects):
            if pghandler: pghandler.report(i)
            student_brain = students[i]
            student_object = student_brain.getObject()
            data = {}
            modified = False
            sid = data['id'] = student_brain.getId
            if reindex_special and 'review_state' in reindex_special:
                modified = True
                data['review_state'] = student_brain.review_state
            sub_objects = False
            for pt in reindextypes.keys():
                modified = True
                try:
                    doc = getattr(student_object,self.affected_types[pt]['id']).getContent()
                    sub_objects = True
                except:
                    continue
                for field in self.affected_types[pt]['fields']:
                    if hasattr(self,'get_from_doc_%s' % field):
                        data[field] = getattr(self,'get_from_doc_%s' % field)(doc)
                    else:
                        data[field] = getattr(doc,field)
                #from pdb import set_trace;set_trace()
            if not sub_objects and noattr:
                import_res = self.returning_import(id = sid)
                if not import_res:
                    continue
                import_record = import_res[0]
                data['matric_no'] = import_record.matric_no
                data['sex'] = import_record.Sex == 'F'
                data['name'] = "%s %s %s" % (import_record.Firstname,
                                             import_record.Middlename,
                                             import_record.Lastname)
                data['jamb_reg_no'] = import_record.Entryregno
            if reindex_special and 'registered_courses' in reindex_special:
                query = Eq('id','study_course') & Eq('path',student_brain.getPath())
                brains = aq_portal(query)
                while brains:
                    study_course_path = brains[0].getPath()
                    level_brains = self.portal_catalog(path = study_course_path,
                                                       portal_type = "StudentStudyLevel")
                    if not level_brains:
                        break
                    modified = True
                    level_ids = [l.getId for l in level_brains]
                    level_ids.sort()
                    for l in level_brains:
                        if l.getId == level_ids[-1]:
                            level_path = l.getPath()
                            break
                    result_brains = self.portal_catalog(path = level_path,
                                                        portal_type = "StudentCourseResult")
                    course_ids = [cr.getId for cr in result_brains]
                    courses = []
                    for c in course_ids:
                        if c.endswith('_co'):
                            courses.append(c[:-3])
                        else:
                            courses.append(c)
                    data['registered_courses'] = courses
                    break
            if modified:
                self.modifyRecord(**data)
        if pghandler: pghandler.finish()
    ###)

    def refreshCatalog(self, clear=0, pghandler=None): ###(
        """ re-index everything we can find """
        students_folder = self.portal_url.getPortalObject().campus.students
        if clear:
            self._catalog.clear()
        students = self.portal_catalog(portal_type="Student")
        num_objects = len(students)
        if pghandler:
            pghandler.init('Refreshing catalog: %s' % self.absolute_url(1), num_objects)
        for i in xrange(num_objects):
            if pghandler: pghandler.report(i)
            student_brain = students[i]
            spath = student_brain.getPath()
            student_object = student_brain.getObject()
            data = {}
            sid = data['id'] = student_brain.getId
            data['review_state'] = student_brain.review_state
            sub_objects = False
            for pt in self.affected_types.keys():
                modified = True
                try:
                    doc = getattr(student_object,self.affected_types[pt]['id']).getContent()
                    sub_objects = True
                except:
                    #from pdb import set_trace;set_trace()
                    continue
                for field in self.affected_types[pt]['fields']:
                    if hasattr(self,'get_from_doc_%s' % field):
                        data[field] = getattr(self,'get_from_doc_%s' % field)(doc)
                    else:
                        data[field] = getattr(doc,field,None)
            if not sub_objects:
                import_res = self.returning_import(id = sid)
                if not import_res:
                    continue
                import_record = import_res[0]
                data['matric_no'] = import_record.matric_no
                data['sex'] = import_record.Sex == 'F'
                data['name'] = "%s %s %s" % (import_record.Firstname,
                                             import_record.Middlename,
                                             import_record.Lastname)
                data['jamb_reg_no'] = import_record.Entryregno
            else:
                study_course = getattr(student_object,'study_course',None)
                current_level = data.get('level',None)
                data['registered_courses'] = []
                if study_course and current_level and current_level in study_course.objectIds():
                    level_obj = getattr(study_course,current_level)
                    courses = []
                    for c in level_obj.objectIds():
                        if c.endswith('_co'):
                            courses.append(c[:-3])
                        else:
                            courses.append(c)
                    data['registered_courses'] = courses
            self.addRecord(**data)
        if pghandler: pghandler.finish()
    ###)

    security.declarePrivate('notify_event_listener') ###(
    def notify_event_listener(self,event_type,object,infos):
        "listen for events"
        if not infos.has_key('rpath'):
            return
        pt = getattr(object,'portal_type',None)
        mt = getattr(object,'meta_type',None)
        students_catalog = self.students_catalog
        data = {}
        if pt == 'Student' and\
           mt == 'CPS Proxy Folder' and\
           event_type.startswith('workflow'):
            data['id'] = object.getId()
            data['review_state'] = self.portal_workflow.getInfoFor(object,'review_state',None)
            students_catalog.modifyRecord(**data)
            return
        rpl = infos['rpath'].split('/')
        if pt == 'Student' and mt == 'CPS Proxy Folder'\
           and event_type == "sys_add_object":
            student_id = object.id
            try:
                self.addRecord(id = student_id)
            except ValueError:
                pass
            return
        elif pt == 'StudentCourseResult' and mt == 'CPS Proxy Folder':
            if event_type not in ("sys_add_object","sys_del_object"):
                return
            course_id = object.getId()
            student_id = object.absolute_url_path().split('/')[-4]
            res = self(id = student_id)
            if not res:
                return
            student_rec = res[0]
            registered_courses = student_rec.registered_courses
            if not registered_courses:
                level_obj = object.aq_parent
                courses = []
                for c in level_obj.objectIds():
                    if c.endswith('_co'):
                        courses.append(c[:-3])
                    else:
                        courses.append(c)
                #from pdb import set_trace;set_trace()
                registered_courses = courses
            else:
                if event_type == "sys_add_object":
                    registered_courses.append(course_id)
                if event_type == "sys_del_object":
                    if course_id in registered_courses:
                        registered_courses.remove(course_id)
            data['id'] = student_id
            data['registered_courses'] = registered_courses
            self.modifyRecord(**data)
        if pt not in self.affected_types.keys():
            return
        if event_type not in ('sys_modify_object'):
            return
        if mt == 'CPS Proxy Folder':
            return
        for field in self.affected_types[pt]['fields']:
            if hasattr(self,'get_from_doc_%s' % field):
                data[field] = getattr(self,'get_from_doc_%s' % field)(object)
            else:
                data[field] = getattr(object,field)
        data['id'] = rpl[2]
        self.modifyRecord(**data)
    ###)


InitializeClass(StudentsCatalog)

###)

class CoursesCatalog(WAeUPTable): ###(
    security = ClassSecurityInfo()

    meta_type = 'WAeUP Courses Catalog'
    name = "students_catalog"
    key = "code"
    def __init__(self):
        WAeUPTable.__init__(self, 'courses_catalog')

    def manage_catalogReindex(self, REQUEST, RESPONSE, URL1): ###(
        """ clear the catalog, then re-index everything """

        elapse = time.time()
        c_elapse = time.clock()

        pgthreshold = self._getProgressThreshold()
        handler = (pgthreshold > 0) and ZLogHandler(pgthreshold) or None
        self.refreshCatalog(clear=1, pghandler=handler)

        elapse = time.time() - elapse
        c_elapse = time.clock() - c_elapse

        RESPONSE.redirect(
            URL1 +
            '/manage_catalogAdvanced?manage_tabs_message=' +
            urllib.quote('Catalog Updated \n'
                         'Total time: %s\n'
                         'Total CPU time: %s' % (`elapse`, `c_elapse`)))
    ###)

    def reindexIndex(self, name, REQUEST,pghandler=None): ###(
        if isinstance(name, str):
            name = (name,)
        courses = self.portal_catalog(portal_type="Course")
        num_objects = len(courses)
        if pghandler:
            pghandler.init('Refreshing catalog: %s' % self.absolute_url(1), num_objects)
        for i in xrange(num_objects):
            if pghandler: pghandler.report(i)
            course_brain = courses[i]
            course_object = course_brain.getObject()
            pl = course_brain.getPath().split('/')
            data = {}
            cid = data[self.key] = course_brain.getId
            data['faculty'] = pl[-4]
            data['department'] = pl[-3]
            doc = course_object.getContent()
            for field in name:
                if field not in (self.key,'faculty','department'):
                    data[field] = getattr(doc,field)
            self.modifyRecord(**data)
        if pghandler: pghandler.finish()
    ###)

    def refreshCatalog(self, clear=0, pghandler=None): ###(
        """ re-index everything we can find """
        if clear:
            self._catalog.clear()
        courses = self.portal_catalog(portal_type="Course")
        num_objects = len(courses)
        if pghandler:
            pghandler.init('Refreshing catalog: %s' % self.absolute_url(1), num_objects)
        #from pdb import set_trace;set_trace()
        for i in xrange(num_objects):
            if pghandler: pghandler.report(i)
            course_brain = courses[i]
            course_doc = course_brain.getObject().getContent()
            pl = course_brain.getPath().split('/')
            data = {}
            for field in self.schema():
                data[field] = getattr(course_doc,field,None)
            data[self.key] = course_brain.getId
            ai = pl.index('academics')
            data['faculty'] = pl[ai +1]
            data['department'] = pl[ai +2]
            if clear:
                self.addRecord(**data)
            else:
                self.modifyRecord(**data)
        if pghandler: pghandler.finish()
    ###)

    security.declarePrivate('notify_event_listener') ###(
    def notify_event_listener(self,event_type,object,infos):
        "listen for events"
        if not infos.has_key('rpath'):
            return
        pt = getattr(object,'portal_type',None)
        mt = getattr(object,'meta_type',None)
        if pt != 'Course':
            return
        data = {}
        rpl = infos['rpath'].split('/')
        if event_type not in ("sys_add_object","sys_modify_object","sys_del_object"):
            return
        course_id = object.getId()
        data[self.key] = course_id
        if event_type == "sys_add_object" and mt == 'CPS Proxy Folder':
            try:
                self.addRecord(**data)
            except ValueError:
                return
            course_id = object.getId()
            doc = object.getContent()
            if doc is None:
                return
            for field in self.schema():
                data[field] = getattr(doc,field,None)
            data[self.key] = course_id
            ai = rpl.index('academics')
            data['faculty'] = rpl[ai +1]
            data['department'] = rpl[ai +2]
            self.modifyRecord(**data)
            return
        if event_type == "sys_del_object":
            self.deleteRecord(course_id)
            return
        if event_type == "sys_modify_object" and mt == 'Course':
            #from pdb import set_trace;set_trace()
            for field in self.schema():
                data[field] = getattr(object,field,None)
            course_id = object.aq_parent.getId()
            data[self.key] = course_id
            ai = rpl.index('academics')
            data['faculty'] = rpl[ai +1]
            data['department'] = rpl[ai +2]
            self.modifyRecord(**data)
    ###)


InitializeClass(CoursesCatalog)
###)

class OnlinePaymentsImport(WAeUPTable): ###(

    meta_type = 'WAeUP Online Payment Transactions'
    name = "online_payments_import"
    key = "order_id"
    def __init__(self):
        WAeUPTable.__init__(self, self.name)


InitializeClass(CoursesCatalog)
###)

class ReturningImport(WAeUPTable): ###(

    meta_type = 'Returning Import Table'
    name = "returning_import"
    key = "matric_no"
    def __init__(self):
        WAeUPTable.__init__(self, 'returning_import')


InitializeClass(ReturningImport)
###)

class ResultsImport(WAeUPTable): ###(

    meta_type = 'Results Import Table'
    name = "results_import"
    key = "key"
    def __init__(self):
        WAeUPTable.__init__(self, 'results_import')


InitializeClass(ResultsImport)

###)

class PaymentsCatalog(WAeUPTable): ###(

    meta_type = 'WAeUP Payments Catalog'
    name = "students_catalog"
    key = "id"
    def __init__(self):
        WAeUPTable.__init__(self, 'payments_catalog')


InitializeClass(PaymentsCatalog)

###)

# BBB:
AccomodationTable = AccommodationTable