path: root/server/views.py

from django.shortcuts import render
from client.models import UserCode, Keys, DocumentType, Document, KeyVal
from django.contrib.auth.models import Group, Permission, User
from django.db.models import Q
from django.http import HttpResponseRedirect, FileResponse
from django.db.models.deletion import ProtectedError
from django.template.loader import get_template
from django.conf import settings
from django.contrib.admin.views.decorators import staff_member_required

import dateparser
from datetime import datetime
from datetime import timedelta
import pytz
import pdfkit
from io import BytesIO
import os, base64

# Create your views here.


@staff_member_required
def index(request):
    context = {}
    parent_group = request.user.groups.values_list('name', flat=True)[
        0]
    users = User.objects.filter(groups__name=parent_group)
    users_out = []
    for user in users:
        code = ""
        if len(UserCode.objects.filter(user=user)) > 0:
            code = 'U' + str(UserCode.objects.filter(user=user)[0].code)
        status = ""
        if user.is_staff:
            status = "Staff"
        elif user.has_perm("client.approved"):
            status = "Attivo"
        else:
            status = "In attesa"
        users_out.append([user.username, user.first_name,
                    user.last_name, code, status])

    parent_group = request.user.groups.values_list('name', flat=True)[
        0]
    group = Group.objects.get(name=parent_group)
    public_types = DocumentType.objects.filter(
        Q(group_private=False) | Q(group=group) & Q(enabled=True))
    docs = []
    for doc in public_types:
        ref_docs = Document.objects.filter(document_type=doc)
        docs.append([doc, len(ref_docs)])

    context = {
        'docs': docs,
        'users': users_out,
        }
    return render(request, 'server/index.html', context)


@staff_member_required
def uapprove(request):
    context = {}
    data = []
    if request.method == "POST":
        parent_group = request.user.groups.values_list('name', flat=True)[
            0]
        group = Group.objects.get(name=parent_group)
        permission = Permission.objects.get(codename='approved')
        data = request.POST["codes"]
        data.replace("\r", "")
        data = data.split("\n")
        for i in range(len(data)):
            if not data[i].startswith("U"):
                data[i] = data[i] + " - Formato errato"
            elif not data[i][1:].isdigit():
                data[i] = data[i] + " - Formato errato"
            elif int(data[i][1:]) < 100000 or int(data[i][1:]) > 999999:
                data[i] = data[i] + " - Formato errato"
            elif len(UserCode.objects.filter(code=data[i][1:])) == 0:
                data[i] = data[i] + " - Invalido"
            else:
                user = UserCode.objects.filter(code=data[i][1:])[0].user
                if len(user.groups.values_list('name', flat=True)) == 0:
                    user.groups.add(group)
                    user.user_permissions.add(permission)
                    data[i] = data[i] + " - Ok"
                else:
                    if user.groups.values_list('name', flat=True)[0] == parent_group:
                        user.user_permissions.add(permission)
                        data[i] = data[i] + " - Ok"
                    else:
                        user.groups.clear()
                        user.groups.add(group)
                        user.user_permissions.add(permission)
                        data[i] = data[i] + " - Ok, cambio branca"

    context = {
        'messages': data,
        'empty': len(data) == 0,
    }

    return render(request, 'server/approve_user.html', context)


@staff_member_required
def docapprove(request):
    context = {}
    data = []
    if request.method == "POST":
        data = request.POST["codes"]
        data.replace("\r", "")
        data = data.split("\n")
        for i in range(len(data)):
            if not data[i].isdigit():
                data[i] = data[i] + " - Formato errato"
            elif int(data[i]) < 100000 or int(data[i]) > 999999:
                data[i] = data[i] + " - Formato errato"
            elif len(Document.objects.filter(code=data[i])) == 0:
                data[i] = data[i] + " - Invalido"
            else:
                document = Document.objects.filter(code=data[i])[0]
                if document.status == 'ok':
                    data[i] = data[i] + " - Già approvato"
                else:
                    document.status = 'ok'
                    document.save()
                    data[i] = data[i] + " - Ok"

    context = {
        'messages': data,
        'empty': len(data) == 0,
    }

    return render(request, 'server/approve_doc.html', context)


@staff_member_required
def ulist(request):
    context = {}
    parent_group = request.user.groups.values_list('name', flat=True)[0]
    group = Group.objects.get(name=parent_group)
    if request.method == "POST":
        if request.POST["action"][0] == 'f':
            document = Document.objects.get(id=request.POST["action"][1:])
            if document.group == group:
                vac_file = ""
                health_file = ""
                if document.medical_data:
                    if document.medical_data.vac_certificate.name:
                        with open(document.medical_data.vac_certificate.name, 'rb') as image_file:
                            vac_file = base64.b64encode(image_file.read()).decode()

                    if document.medical_data.health_care_certificate.name:
                        with open(document.medical_data.health_care_certificate.name, 'rb') as image_file:
                            health_file = base64.b64encode(image_file.read()).decode()

                template = get_template('server/download_doc.html')
                doc = [document, KeyVal.objects.filter(container=document), document.personal_data, document.medical_data, parent_group]
                context = {'doc': doc, 'vac': vac_file, 'health': health_file}
                html = template.render(context)
                pdf = pdfkit.from_string(html, False)
                result = BytesIO(pdf)
                result.seek(0)

                return FileResponse(result, as_attachment=True, filename=document.user.username+"_"+document.document_type.name+".pdf")
    users = User.objects.filter(groups__name=parent_group).order_by("first_name")
    out = []
    for user in users:
        usercode = UserCode.objects.filter(user=user)[0]
        documents = Document.objects.filter(Q(user=user) & ~Q(status='archive') & Q(group__name=parent_group))
        vac_file = ""
        health_file = ""
        if usercode.medic:
            if usercode.medic.vac_certificate.name:
                with open(usercode.medic.vac_certificate.name, 'rb') as image_file:
                    vac_file = base64.b64encode(image_file.read()).decode()

            if usercode.medic.health_care_certificate.name:
                with open(usercode.medic.health_care_certificate.name, 'rb') as image_file:
                    health_file = base64.b64encode(image_file.read()).decode()
        out.append([user, usercode, parent_group, documents, vac_file, health_file])
    context = {'users': out}
    return render(request, 'server/user_list.html', context)


@staff_member_required
def doctype(request):
    context = {}
    error = False
    error_text = ""

    public = True
    selfsign = True
    hidden = False
    personal = True
    medic = True
    custom = True
    message = True
    group_bool = True
    public_check = 'checked="checked"'
    selfsign_check = 'checked="checked"'
    hidden_check = 'checked="checked"'
    personal_check = 'checked="checked"'
    medic_check = 'checked="checked"'
    custom_check = 'checked="checked"'
    message_check = 'checked="checked"'
    group_check = 'checked="checked"'
    if request.method == "POST":
        selected = []
        parent_groups = request.user.groups.values_list('name', flat=True)
        for i in request.POST.keys():
            if i.isdigit():
                docc = DocumentType.objects.get(id=i)
                if docc.group.name in parent_groups:
                    selected.append(docc)
                else:
                    error = True
                    error_text = "Non puoi modificare un documento non del tuo gruppo"

        for i in selected:
            if request.POST["action"] == 'delete':
                try:
                    i.delete()
                except ProtectedError:
                    error = True
                    error_text = "Non puoi eliminare un tipo a cui é collegato uno o piú documenti"
            elif request.POST["action"] == 'hide':
                i.enabled = False
                i.save()
            elif request.POST["action"] == 'show':
                i.enabled = True
                i.save()

        public = "filter_public" in request.POST
        selfsign = "filter_selfsign" in request.POST
        hidden = "filter_hidden" in request.POST
        personal = "filter_personal" in request.POST
        medic = "filter_medic" in request.POST
        custom = "filter_custom" in request.POST
        message = "filter_message" in request.POST
        group_bool = "filter_group" in request.POST

        if request.POST["action"] == 'clear':
            public = True
            selfsign = True
            hidden = False
            personal = True
            medic = True
            custom = True
            message = True
            group_bool = True

    parent_group = request.user.groups.values_list('name', flat=True)[
        0]
    group = Group.objects.get(name=parent_group)
    public_types = DocumentType.objects.filter(
        Q(group_private=False) | Q(group=group))
    if not public:
        public_types = public_types.filter(group_private=True)
        public_check = ""
    if not selfsign:
        public_types = public_types.filter(auto_sign=False)
        selfsign_check = ""
    if not hidden:
        public_types = public_types.filter(enabled=True)
        hidden_check = ""
    if not personal:
        public_types = public_types.filter(personal_data=False)
        personal_check = ""
    if not medic:
        public_types = public_types.filter(medical_data=False)
        medic_check = ""
    if not custom:
        public_types = public_types.filter(custom_data=False)
        custom_check = ""
    if not message:
        public_types = public_types.filter(custom_message=False)
        message_check = ""
    if not group_bool:
        public_types = public_types.filter(custom_group=False)
        group_check = ""

    out = []
    for doc in public_types:
        custom_keys = Keys.objects.filter(container=doc)
        ref_docs = Document.objects.filter(document_type=doc)
        out.append([doc, custom_keys, len(ref_docs)])

    context = {
        'docs': out,
        'public_check': public_check,
        'selfsign_check': selfsign_check,
        'hidden_check': hidden_check,
        'personal_check': personal_check,
        'medic_check': medic_check,
        'custom_check': custom_check,
        'message_check': message_check,
        'group_check': group_check,
        'error': error,
        'error_text': error_text,
        }
    return render(request, 'server/doc_type.html', context)


@staff_member_required
def doccreate(request):
    context = {}
    parent_group = request.user.groups.values_list('name', flat=True)[
        0]
    group = Group.objects.get(name=parent_group)
    enabled = False
    group_private = False
    personal_data = False
    medical_data = False
    custom_data = False
    custom_group_bool = False
    name = ""
    custom_group = ""

    enabled_check = 'checked="checked"'
    private_check = 'checked="checked"'
    personal_check = 'checked="checked"'
    sign_check = 'checked="checked"'
    medical_check = ""
    custom_check = ""
    custom_message_check = ""
    context = {
        "enabled_check": enabled_check,
        "private_check": private_check,
        "sign_check": sign_check,
        "personal_check": personal_check,
        "medical_check": medical_check,
        "custom_check": custom_check,
        "custom_message_check": custom_message_check,
    }
    if request.method == "POST":
        enabled = "enabled" in request.POST.keys()
        auto_sign = "sign" not in request.POST.keys()
        group_private = "group_private" in request.POST.keys()
        personal_data = "personal_data" in request.POST.keys()
        medical_data = "medical_data" in request.POST.keys()
        custom_data = "custom_data" in request.POST.keys()
        custom_message = "custom_message" in request.POST.keys()
        custom_message_text = request.POST["custom_message_text"]
        name = request.POST["name"]
        custom_group = request.POST["custom_group"]

        if custom_group != "":
            print("here")
            if custom_group not in request.user.groups.values_list('name', flat=True):
                context["error"] = "true"
                context["error_text"] = "Non puoi creare un tipo assegnato ad un gruppo di cui non fai parte"
                return render(request, 'server/doc_create.html', context)
            else:
                group = Group.objects.filter(name=custom_group)[0]
                custom_group_bool = True

        doctype = DocumentType(
            custom_group=custom_group_bool, auto_sign=auto_sign, custom_message=custom_message, custom_message_text=custom_message_text, name=request.POST["name"], enabled=enabled, group_private=group_private, group=group, personal_data=personal_data, medical_data=medical_data, custom_data=custom_data)
        doctype.save()
        if custom_data:
            custom = request.POST["custom"]
            custom.replace("\r", "")
            custom = custom.split("\n")
            for i in custom:
                key = Keys(key=i, container=doctype)
                key.save()
        return HttpResponseRedirect('doctype')

    return render(request, 'server/doc_create.html', context)


@staff_member_required
def doclist(request):
    context = {}
    parent_group = request.user.groups.values_list('name', flat=True)[
        0]
    group = Group.objects.get(name=parent_group)
    zurich = pytz.timezone('Europe/Zurich')
    error = False
    error_text = ""

    hidden = False
    wait = True
    selfsign = True
    ok = True

    hidden_check = 'checked="checked"'
    wait_check = 'checked="checked"'
    selfsign_check = 'checked="checked"'
    ok_check = 'checked="checked"'
    newer = zurich.localize(dateparser.parse("1970-01-01"))
    older = zurich.localize(datetime.now())
    owner = []
    types = []
    groups = []
    chips_owner = []
    chips_types = []
    chips_groups = []

    if request.method == "POST":
        if request.POST["action"][0] == 'k':
            document = Document.objects.get(id=request.POST["action"][1:])
            if document.group == group:
                vac_file = ""
                health_file = ""
                if document.medical_data:
                    if document.medical_data.vac_certificate.name:
                        with open(document.medical_data.vac_certificate.name, 'rb') as image_file:
                            vac_file = base64.b64encode(image_file.read()).decode()

                    if document.medical_data.health_care_certificate.name:
                        with open(document.medical_data.health_care_certificate.name, 'rb') as image_file:
                            health_file = base64.b64encode(image_file.read()).decode()

                template = get_template('server/download_doc.html')
                doc = [document, KeyVal.objects.filter(container=document), document.personal_data, document.medical_data, parent_group]
                context = {'doc': doc, 'vac': vac_file, 'health': health_file}
                html = template.render(context)
                pdf = pdfkit.from_string(html, False)
                result = BytesIO(pdf)
                result.seek(0)

                return FileResponse(result, as_attachment=True, filename=document.user.username+"_"+document.document_type.name+".pdf")

        selected = []
        parent_groups = request.user.groups.values_list('name', flat=True)
        for i in request.POST.keys():
            if i.isdigit():
                docc = Document.objects.get(id=i)
                if docc.group.name in parent_groups:
                    selected.append(docc)

        for i in selected:
            if request.POST["action"] == 'delete':
                i.delete()
            elif request.POST["action"] == 'approve':
                i.status = 'ok'
                i.save()
            elif request.POST["action"] == 'archive':
                if i.status == 'ok':
                    i.status = 'archive'
                    i.save()
                else:
                    error = True
                    error_text = "Non puoi archiviare un documento non approvato"
            elif request.POST["action"] == 'unarchive':
                if i.status == 'archive':
                    i.status = 'ok'
                    i.save()
                else:
                    error = True
                    error_text = "Non puoi dearchiviare un documento non archiviato"
        
        hidden = "filter_hidden" in request.POST
        wait = "filter_wait" in request.POST
        selfsign = "filter_selfsign" in request.POST
        ok = "filter_ok" in request.POST
        newer = zurich.localize(dateparser.parse(request.POST["newer"]))
        older = zurich.localize(dateparser.parse(request.POST["older"]) + timedelta(days=1))
        owner = request.POST["owner"].split("^|")
        types = request.POST["type"].split("^|")
        groups = request.POST["groups"].split("^|")

        if request.POST["action"] == 'clear':
            hidden = False
            wait = True
            selfsign = True
            ok = True
            newer = zurich.localize(dateparser.parse("1970-01-01"))
            older = zurich.localize(datetime.now())
            owner = []
            types = []
            groups = []

    parent_groups = request.user.groups.values_list('name', flat=True)
    q_obj = Q()
    for i in parent_groups:
        q_obj |= Q(group__name=i)

    documents = Document.objects.filter(q_obj)

    if not hidden:
        documents = documents.filter(~Q(status="archive"))
        hidden_check = ""
    if not wait:
        documents = documents.filter(~Q(status="wait"))
        wait_check = ""
    if not selfsign:
        documents = documents.filter(~Q(status="autosign"))
        selfsign_check = ""
    if not ok:
        documents = documents.filter(~Q(status="ok"))
        ok_check = ""

    documents = documents.filter(compilation_date__range=[newer, older])

    if len(types) > 0:
        if types[0] != "":
            q_obj = Q()
            for t in types:
                q_obj |= Q(document_type__name=t)
                chips_types.append(t)

            documents = documents.filter(q_obj)

    if len(owner) > 0:
        if owner[0] != "":
            q_obj = Q()
            for u in owner:
                user = u.split("(")[0][:-1]
                q_obj |= Q(user__username=user)
                chips_owner.append(u)

            documents = documents.filter(q_obj)

    if len(groups) > 0:
        if groups[0] != "":
            q_obj = Q()
            for g in groups:
                q_obj |= Q(group__name=g)
                chips_groups.append(g)

            documents = documents.filter(q_obj)

    out = []
    for i in documents:
        personal = None
        medical = None
        vac_file = ""
        health_file = ""
        if i.document_type.personal_data:
            personal = i.personal_data
        if i.document_type.medical_data:
            medical = i.medical_data
            if medical.vac_certificate.name:
                with open(medical.vac_certificate.name, 'rb') as image_file:
                    vac_file = base64.b64encode(image_file.read()).decode()

            if medical.health_care_certificate.name:
                with open(medical.health_care_certificate.name, 'rb') as image_file:
                    health_file = base64.b64encode(image_file.read()).decode()

        doc_group = i.user.groups.values_list('name', flat=True)[0]

        out.append([i, KeyVal.objects.filter(container=i), personal, medical, doc_group, vac_file, health_file])

    auto_types = DocumentType.objects.filter(Q(group_private=False) | Q(group=group))
    users = User.objects.filter(groups__name=parent_group)
    context = {
        "types": auto_types,
        "users": users,
        "groups": parent_groups,
        "docs": out,
        "hidden_check": hidden_check,
        "wait_check": wait_check,
        "selfsign_check": selfsign_check,
        "ok_check": ok_check,
        "newer": newer,
        "older": older,
        "chips_owner": chips_owner,
        "chips_type": chips_types,
        "chips_groups": chips_groups,
        'error': error,
        'error_text': error_text,
        'settings': settings,
        }
    return render(request, 'server/doc_list.html', context)