SGJP / Kuznia

#-*- coding:utf-8 -*-

import gzip

from django.contrib.auth.decorators import login_required, permission_required
from django.contrib.auth.models import User
from django.core.urlresolvers import reverse
from django.http import HttpResponseRedirect, HttpResponse

from common.decorators import render
from common.util import make_form, GroupDict
from paginer import PaginationList
from paginer.decorators import paginated
from dictionary.forms import AddClassificationForm, ExclusionClassForm, \
    AddClassificationValueForm, VocabularyForm, AddExclusionClassForm, \
    AddQualifierForm, ChangeClassForm, ExportForm, MagicQualifierForm
from dictionary.models import visible_vocabularies, PartOfSpeech, Lexeme, \
    Vocabulary, Classification, ClassificationValue, Qualifier, History, \
    QualifierExclusionClass, get_exclusion_classes, editable_vocabularies, \
    managed_vocabularies, CrossReferenceType, LexicalClass, PatternType
from dictionary.history import lexeme_tables
from dictionary.export import export_lexemes
from dictionary.wsjp import make_data


@login_required
def main(request):
    if request.user.has_perm('dictionary.view_lexeme'):
        return HttpResponseRedirect(reverse('lexeme_view'))
    if request.user.has_perm('dictionary.view_pattern'):
        return HttpResponseRedirect(reverse('pattern_view'))
    if request.user.has_perm('dictionary.manage_vocabulary') or \
            request.user.has_perm('auth.add_user'):
        return HttpResponseRedirect(reverse('management_menu'))
    if request.user.has_perm('dictionary.export_lexemes'):
        return HttpResponseRedirect(reverse('export'))
    return HttpResponseRedirect('auth_login') # niezbyt prawdopodobne

@permission_required('dictionary.view_lexeme')
@render('lexeme_view.html')
def lexeme_view(request):
    exclusion_classes = get_exclusion_classes()
    visible = visible_vocabularies(request.user)
    editable_vocabs = editable_vocabularies(request.user)
    vocabs = {}
    for v in editable_vocabs:
        vocabs.update(dict((str(q.pk), v.id) for q in v.qualifiers.all()))
    qualifier_options = []
    for vocab in visible:
        qualifiers = vocab.qualifiers.all()
        if qualifiers:
            qualifier_options.append((0, '--%s--' % vocab.id))
            for q in vocab.qualifiers.all():
                qualifier_options.append((q.pk, q.label))
    classifications = Classification.objects.filter(
        vocabularies__in=visible).distinct()
    cv_options = []
    for classification in classifications:
        cv_options.append((0, '--%s--' % classification.name))
        cv_options += classification.make_choices()
    cr_type_options = []
    for cr_type in CrossReferenceType.objects.order_by('symbol'):
        cr_type_options.append(
            (cr_type.pk,
            '%s %s->%s' % (cr_type.symbol, cr_type.from_pos, cr_type.to_pos)))
    default_owner = request.user.usersettings.default_owner
    js_vars = {
        'ajax_get_page': reverse('get_lexemes'),
        'ajax_inflection_tables': reverse('get_inflection_tables'),
        'ajax_history_table': reverse('history_table'),
        'ajax_odm_forms': reverse('odm_forms'),
        'ajax_edit_form': reverse('lexeme_edit_form'),
        'ajax_update_lexeme': reverse('update_lexeme'),
        'ajax_search_index': reverse('search_index'),
        'ajax_row_index': reverse('row_index'),
        'ajax_save_filter': reverse('save_filter'),
        'ajax_get_filters': reverse('get_filters'),
        'ajax_delete_filter': reverse('delete_filter'),
        'ajax_table_preview': reverse('table_preview'),
        'ajax_new_lip_row': reverse('new_lip_edit_row'),
        'ajax_new_cr_row': reverse('new_cross_reference_row'),
        'ajax_save_columns': reverse('save_columns'),
        'ajax_delete_lexeme': reverse('delete_lexeme'),
        'ajax_prompter_list': reverse('prompter_list'),
        'ajax_check_pos': reverse('check_pos'),
        'ajax_check_pattern': reverse('check_pattern'),
        'ajax_check_classifications': reverse('check_classifications'),
        'ajax_get_ics': reverse('get_ics'),
        'ajax_save_default_owner': reverse('save_default_owner'),
        'ajax_create_lexeme': reverse('create_lexeme'),
        'ajax_classification_forms': reverse('classification_forms'),
        'ajax_extra_attributes': reverse('extra_attributes'),
        'ajax_check_attributes': reverse('check_attributes'),
        'ajax_homonym_count': reverse('homonym_count'),
        'ajax_cr_homonyms': reverse('cr_homonyms'),
        'ajax_new_action_row': reverse('new_action_row'),
        'ajax_dynamic_fields': reverse('dynamic_action_fields'),
        'ajax_execute_actions': reverse('execute_group_actions'),
        'vocabs': vocabs,
        'visible_vocabularies': [(v.pk, v.id) for v in visible],
        'parts_of_speech': [
            (pos.pk, pos.symbol) for pos in PartOfSpeech.objects.all()],
        'qualifier_options': qualifier_options,
        'cv_options': cv_options,
        'status_options': Lexeme.STATUS_CHOICES,
        'cr_type_options': cr_type_options,
        'commonness': Classification.objects.get(name=u'pospolitość').pk,
        'exclusion_classes': exclusion_classes,
        'filtering_mode': request.user.usersettings.filter_search,
        'auto_search': request.user.usersettings.incremental_search,
        'default_owner': default_owner.id if default_owner else '',
    }
    session_variables = ('filter', 'sort_rules', 'columns')
    for var in session_variables:
        if var in request.session:
            js_vars[var] = request.session[var]
    return {'js_vars': js_vars, 'editable_vocabularies': editable_vocabs}

@permission_required('dictionary.view_pattern')
@render()
def pattern_view(request):
    lexical_class_options = [
        (lc.symbol, lc.symbol) for lc in LexicalClass.objects.all()]
    pattern_types = GroupDict()
    for pt in PatternType.objects.all():
        pattern_types.add(pt.lexical_class.symbol, (pt.id, pt.symbol))
    pattern_type_options = pattern_types.items()
    js_vars = {
        'ajax_get_page': reverse('get_patterns'),
        'ajax_edit_form': reverse('pattern_edit_form'),
        'ajax_update_pattern': reverse('update_pattern'),
        'ajax_search_index': reverse('patterns_search_index'),
        'ajax_save_columns': reverse('patterns_save_columns'),
        'ajax_new_ending_row': reverse('new_ending_row'),
        'exclusion_classes': get_exclusion_classes(),
        'filtering_mode': request.user.usersettings.filter_search,
        'auto_search': request.user.usersettings.incremental_search,
        'lexical_class_options': lexical_class_options,
        'pattern_type_options': pattern_type_options
    }
    session_variables = (
        'pattern-filter',
        'pattern-sort_rules',
        'pattern-columns',
    )
    for var in session_variables:
        if var in request.session:
            js_name = var.split('-', 1)[1]
            js_vars[js_name] = request.session[var]
    return {'js_vars': js_vars}


@login_required
@render()
def tasks(request):
    return {}


@login_required
@render()
def reports(request):
    return {}


@login_required
@render()
def management_menu(request):
    return {}


@permission_required('dictionary.manage_vocabulary')
@render()
def manager_view(request):
    to_return = {
        'users': User.objects.order_by('username'),
        'vocabularies_info': [
            (v, request.user in v.all_managers(),
            v.all_viewers(), v.all_editors(), v.all_managers())
            for v in Vocabulary.objects.order_by('id')],
        'js_vars': {
            'ajax_add_vocabulary': reverse('add_vocabulary'),
            #'ajax_get_permissions': reverse('vocabulary_permissions'),
            'ajax_set_permission': reverse('set_vocabulary_permission'),
        },
    }
    return to_return


@permission_required('dictionary.manage_vocabulary')
@render()
def manage_classifications(request):
    to_return = {}
    add_form = make_form(request, AddClassificationForm)
    if add_form.is_valid():
        add_form.save()
    to_return['add_form'] = add_form
    if request.POST.get('det') == 'value_form':
        add_form = AddClassificationValueForm(data=request.POST)
        if add_form.is_valid():
            add_form.save()
    if request.POST.get('det') == 'vocabulary_form':
        form = VocabularyForm(
            data=request.POST, queryset=managed_vocabularies(request.user))
        if form.is_valid():
            c = form.cleaned_data['classification']
            v = form.cleaned_data['vocabulary']
            c.vocabularies.add(v) #add
    if request.POST.get('det') == 'value_remove':
        pk = int(request.POST['id'])
        try:
            cv = ClassificationValue.objects.get(pk=pk)
            cv.deleted = True
            cv.save()
        except ClassificationValue.DoesNotExist:
            pass
    if request.POST.get('det') == 'value_rename':
        pk = int(request.POST['id'])
        label = request.POST['new_name']
        try:
            v = ClassificationValue.objects.get(pk=pk)
            v.label = label
            v.save()
        except ClassificationValue.DoesNotExist:
            pass
    if request.POST:
        return HttpResponseRedirect(reverse('manage_classifications'))

    classification_forms = []
    for c in Classification.objects.all():
        value_form = AddClassificationValueForm(classification=c)
        vocabs = managed_vocabularies(request.user)
        using = c.vocabularies.all() & vocabs
        other = vocabs.exclude(pk__in=using.values_list('pk', flat=True))
        vocab_form = VocabularyForm(classification=c, queryset=other)
        classification_forms.append((c, value_form, vocab_form, using))
    to_return['classification_forms'] = classification_forms
    return to_return


@permission_required('dictionary.manage_vocabulary')
@render()
def manage_qualifiers(request):
    det = request.POST.get('det')
    if det == 'add_exclusion_class':
        form = AddExclusionClassForm(data=request.POST)
        if form.is_valid():
            form.save()
    if det == 'remove_exclusion_class':
        form = ExclusionClassForm(data=request.POST)
        if form.is_valid():
            ec = form.cleaned_data['ec']
            ec.delete()
    if det == 'add_qualifier':
        form = AddQualifierForm(data=request.POST)
        if form.is_valid():
            form.save()
    prefix = q = None
    for name, _value in request.POST.iteritems():
        if name.startswith('cec'):
            prefix = name.split('-')[0]
            q = Qualifier.objects.get(pk=int(prefix[3:]))
            break
    if prefix:
        form = ChangeClassForm(data=request.POST, instance=q, prefix=prefix)
        if form.is_valid():
            form.save()
    if det == 'remove_qualifier':
        pk = int(request.POST['id'])
        try:
            q = Qualifier.objects.get(pk=pk)
            q.deleted = True
            q.save()
        except Qualifier.DoesNotExist:
            pass
    if request.POST:
        return HttpResponseRedirect(reverse('manage_qualifiers'))

    to_return = {}
    form_list = []
    for vocabulary in managed_vocabularies(request.user):
        add_exclusion_class_form = AddExclusionClassForm(vocabulary=vocabulary)
        empty_ec = QualifierExclusionClass.objects.filter(
            vocabulary=vocabulary).extra(where=[
            'not exists (select * from kwalifikatory '
            'where klasa = klasy_wykluczania.id)'])
        if empty_ec:
            remove_exclusion_class_form = ExclusionClassForm(queryset=empty_ec)
        else:
            remove_exclusion_class_form = None
        add_qualifier_form = AddQualifierForm(vocabulary=vocabulary)
        qualifiers = Qualifier.objects.filter(vocabulary=vocabulary)
        qualifier_forms = []
        for q in qualifiers:
            change_class_form = ChangeClassForm(instance=q,
                prefix='cec%s' % q.pk)
            qualifier_forms.append((q, change_class_form))
        form_list.append(
            (vocabulary.id, add_exclusion_class_form,
            remove_exclusion_class_form,
            add_qualifier_form, qualifier_forms))
    to_return['form_list'] = form_list
    return to_return


@permission_required('dictionary.view_lexeme')
@render()
@paginated
def history_view(request):
    paginer = PaginationList()
    lexeme_history = History.objects.exclude(lexeme=None).distinct().values(
        'lexeme', 'user', 'transaction_began')
    paginer.add('lexeme_items', 'lexeme_history', {
        'columns': ('lexeme',),
        'order_by': '-transaction_began',
        'filters': [('user', 'ne', u'Kuźniobot')],
        'sort_fields': (),
        'filter_fields': ('user', 'time_from', 'time_to'),
    })
    return {
        'lexeme_tables': lexeme_tables(lexeme_history),
        'show_lexemes': True,
        'paginer': paginer,
    }


@permission_required('dictionary.export_lexemes')
@render()
def export(request):
    if request.GET:
        form = ExportForm(data=request.GET)
        if form.is_valid():
            data = {
                'vocabs': [v.id for v in form.cleaned_data['vocabs']],
                'antivocabs': [v.id for v in form.cleaned_data['antivocabs']],
                'variant': form.cleaned_data['variant'].id,
            }
            #data['excluding_qualifiers'] = [
            #  q.pk for q in form.cleaned_data['excluding_qualifiers']]
            magic_ids = set()
            magic_qualifiers = []
            normal_qualifiers = []
            for key in request.GET:
                split_key = key.split('-')
                if key.startswith('magic') and split_key[0] not in magic_ids:
                    i, name = split_key
                    magic_ids.add(i)
                    magic_form = MagicQualifierForm(prefix=i, data=request.GET)
                    if magic_form.is_valid():
                        regex = magic_form.cleaned_data['regex']
                        if regex:
                            magic_qualifiers.append(
                                (
                                    regex,
                                    magic_form.cleaned_data['qualifier'].pk))
                        else:
                            normal_qualifiers.append(
                                magic_form.cleaned_data['qualifier'].pk)
            data['magic_qualifiers'] = magic_qualifiers
            data['excluding_qualifiers'] = normal_qualifiers
            data['refl'] = form.cleaned_data['refl']
            data['commonness'] = form.cleaned_data['commonness']
            ###
            response = HttpResponse(mimetype='application/x-gzip')
            export_gz = gzip.GzipFile(fileobj=response, mode='w')
            export_lexemes(data, export_gz)
            filename = 'eksport.tab.gz'
            response[
                'Content-Disposition'] = 'attachment; filename=%s' % filename
            return response
    else:
        form = ExportForm()
    vocabs = {}
    for v in Vocabulary.objects.all():
        vocabs.update(dict((str(q.pk), v.id) for q in v.qualifiers.all()))
    js_vars = {
        'vocabs': vocabs,
        'ajax_new_qualifier_row': reverse('magic_qualifier_row'),
        'ajax_save_export_data': reverse('save_export_data'),
        'ajax_get_export_data': reverse('get_export_data'),
        'ajax_delete_export_data': reverse('delete_export_data'),
    }
    return {'form': form, 'js_vars': js_vars}


def wsjp_table(request, entry):
    data = make_data([entry])
    result = '\n'.join(
        '\t'.join(['%s'] * len(data_row)) % data_row for data_row in data)
    return HttpResponse(result, content_type="text/plain")