zod-backend/junior/serializers.py

"""Serializer file for junior"""
# third party imports
import pytz

# django imports
from rest_framework import serializers
from django.contrib.auth.models import User
from django.db import transaction
from datetime import datetime
from django.utils import timezone
from rest_framework_simplejwt.tokens import RefreshToken

# local imports
from account.utils import send_otp_email, generate_code, make_special_password
from junior.models import Junior, JuniorPoints, JuniorGuardianRelationship, JuniorArticlePoints, FAQ
from guardian.tasks import generate_otp
from base.messages import ERROR_CODE, SUCCESS_CODE
from base.constants import (PENDING, IN_PROGRESS, REJECTED, REQUESTED, COMPLETED, NUMBER, JUN, ZOD, EXPIRED,
                            GUARDIAN_CODE_STATUS, JUNIOR)
from guardian.models import Guardian, JuniorTask
from account.models import UserEmailOtp, UserNotification
from junior.utils import junior_notification_email, junior_approval_mail, get_junior_leaderboard_rank
from guardian.utils import real_time, update_referral_points, convert_timedelta_into_datetime
from notifications.utils import send_notification
from notifications.constants import (ASSOCIATE_REQUEST, ASSOCIATE_JUNIOR, TASK_ACTION,
                                     )
from web_admin.models import ArticleCard

class ListCharField(serializers.ListField):
    """Serializer for Array field"""
    child = serializers.CharField()

    def to_representation(self, data):
        """to represent the data"""
        return data

    def to_internal_value(self, data):
        """internal value"""
        if isinstance(data, list):
            return data
        raise serializers.ValidationError({"details":ERROR_CODE['2025']})


class CreateJuniorSerializer(serializers.ModelSerializer):
    """Create junior serializer"""
    first_name = serializers.SerializerMethodField('get_first_name')
    last_name = serializers.SerializerMethodField('get_last_name')
    email = serializers.SerializerMethodField('get_email')
    phone = serializers.CharField(max_length=20, required=False)
    country_code = serializers.IntegerField(required=False)
    dob = serializers.DateField(required=False)
    referral_code = serializers.CharField(max_length=100, required=False)
    guardian_code = ListCharField(required=False)
    image = serializers.URLField(required=False)

    class Meta(object):
        """Meta info"""
        model = Junior
        fields = ['id', 'first_name', 'last_name', 'email', 'phone', 'gender', 'country_code', 'dob', 'referral_code',
                  'passcode', 'is_complete_profile', 'guardian_code', 'referral_code_used',
                  'country_name', 'image', 'is_invited']

    def get_first_name(self,obj):
        """first name of junior"""
        return obj.auth.first_name

    def get_last_name(self,obj):
        """last name of junior"""
        return obj.auth.last_name

    def get_email(self,obj):
        """email of junior"""
        return obj.auth.email

    def create(self, validated_data):
        """Create junior profile"""
        guardian_code = validated_data.get('guardian_code',None)
        user = User.objects.filter(username=self.context['user']).last()
        if user:
            """Save first and last name of junior"""
            if self.context.get('first_name') != '' and self.context.get('first_name') is not None:
                user.first_name = self.context.get('first_name')
            if self.context.get('last_name') != '' and self.context.get('last_name') is not None:
                user.last_name = self.context.get('last_name')
            user.save()
        """Create junior data"""
        junior = Junior.objects.filter(auth=self.context['user']).last()
        if junior:
            """update details according to the data get from request"""
            junior.gender = validated_data.get('gender',junior.gender)
            # Update guardian code"""
            # condition for guardian code
            if guardian_code:
                if junior.guardian_code and guardian_code:
                    if guardian_code[0] in junior.guardian_code:
                        raise serializers.ValidationError({"error":ERROR_CODE['2076'],"code":"400", "status":"failed"})
                if not junior.guardian_code:
                    junior.guardian_code = []
                    junior.guardian_code_status = []
                    junior.guardian_code.extend(guardian_code)
                    junior.guardian_code_status.extend(str(NUMBER['three']))
                elif len(junior.guardian_code) < 3 and len(guardian_code) < 3:
                    junior.guardian_code.extend(guardian_code)
                    junior.guardian_code_status.extend(str(NUMBER['three']))
                else:
                    raise serializers.ValidationError({"error":ERROR_CODE['2081'],"code":"400", "status":"failed"})
                guardian_data = Guardian.objects.filter(guardian_code=guardian_code[0]).last()
                if guardian_data:
                    JuniorGuardianRelationship.objects.get_or_create(guardian=guardian_data, junior=junior)
                    send_notification.delay(ASSOCIATE_REQUEST, junior.auth_id, JUNIOR, guardian_data.user_id, {})
                # junior_approval_mail.delay(user.email, user.first_name) removed as per changes
            junior.dob = validated_data.get('dob', junior.dob)
            junior.passcode = validated_data.get('passcode', junior.passcode)
            junior.country_name = validated_data.get('country_name', junior.country_name)
            """Update country code and phone number"""
            junior.phone = validated_data.get('phone', junior.phone)
            junior.country_code = validated_data.get('country_code', junior.country_code)
            junior.image = validated_data.get('image', junior.image)
            """Complete profile of the junior if below all data are filled"""
            complete_profile_field = all([junior.gender, junior.country_name, junior.image,
                                          junior.dob, user.first_name])
            junior.is_complete_profile = False
            if complete_profile_field:
                junior.is_complete_profile = True
            referral_code_used = validated_data.get('referral_code_used')
            update_referral_points(junior.referral_code, referral_code_used)
            junior.referral_code_used = validated_data.get('referral_code_used', junior.referral_code_used)
            junior.save()
        return junior

    def save(self, **kwargs):
        """Save the data into junior table"""
        with transaction.atomic():
            instance = super().save(**kwargs)
            return instance

class JuniorDetailSerializer(serializers.ModelSerializer):
    """junior serializer"""
    email = serializers.SerializerMethodField('get_auth')
    first_name = serializers.SerializerMethodField('get_first_name')
    last_name = serializers.SerializerMethodField('get_last_name')

    def get_auth(self, obj):
        """user email address"""
        return obj.auth.username

    def get_first_name(self, obj):
        """user first name"""
        return obj.auth.first_name

    def get_last_name(self, obj):
        """user last name"""
        return obj.auth.last_name

    class Meta(object):
        """Meta info"""
        model = Junior
        fields = ['id', 'email', 'first_name', 'last_name', 'country_code', 'phone', 'gender', 'dob',
                  'guardian_code', 'image', 'is_invited', 'referral_code','is_active', 'is_complete_profile',
                  'created_at', 'image', 'is_deleted', 'updated_at']

class JuniorDetailListSerializer(serializers.ModelSerializer):
    """junior serializer"""

    email = serializers.SerializerMethodField('get_auth')
    first_name = serializers.SerializerMethodField('get_first_name')
    last_name = serializers.SerializerMethodField('get_last_name')
    assigned_task = serializers.SerializerMethodField('get_assigned_task')
    points = serializers.SerializerMethodField('get_points')
    in_progress_task = serializers.SerializerMethodField('get_in_progress_task')
    completed_task = serializers.SerializerMethodField('get_completed_task')
    requested_task = serializers.SerializerMethodField('get_requested_task')
    rejected_task = serializers.SerializerMethodField('get_rejected_task')
    pending_task = serializers.SerializerMethodField('get_pending_task')
    position = serializers.SerializerMethodField('get_position')
    guardian_code_status = serializers.SerializerMethodField('get_guardian_code_status')


    def get_auth(self, obj):
        return obj.auth.username

    def get_first_name(self, obj):
        return obj.auth.first_name

    def get_last_name(self, obj):
        return obj.auth.last_name

    def get_assigned_task(self, obj):
        data = JuniorTask.objects.filter(junior=obj).count()
        return data

    def get_position(self, obj):
        return get_junior_leaderboard_rank(obj)

    def get_points(self, obj):
        data = JuniorPoints.objects.filter(junior=obj).last()
        if data:
            return data.total_points
        return NUMBER['zero']

    def get_in_progress_task(self, obj):
        data = JuniorTask.objects.filter(junior=obj, task_status=IN_PROGRESS).count()
        return data

    def get_completed_task(self, obj):
        data = JuniorTask.objects.filter(junior=obj, task_status=COMPLETED).count()
        return data


    def get_requested_task(self, obj):
        data = JuniorTask.objects.filter(junior=obj, task_status=REQUESTED).count()
        return data

    def get_rejected_task(self, obj):
        data = JuniorTask.objects.filter(junior=obj, task_status=REJECTED).count()
        return data

    def get_pending_task(self, obj):
        data = JuniorTask.objects.filter(junior=obj, task_status=PENDING).count()
        return data

    def get_guardian_code_status(self, obj):
        if self.context['guardian_code'] in obj.guardian_code:
            index = obj.guardian_code.index(self.context['guardian_code'])
            if obj.guardian_code_status:
                data = obj.guardian_code_status[index]
                return data
    class Meta(object):
        """Meta info"""
        model = Junior
        fields = ['id', 'email', 'first_name', 'last_name', 'country_code', 'country_name', 'phone', 'gender', 'dob',
                  'guardian_code', 'referral_code','is_active', 'is_complete_profile', 'created_at', 'image',
                  'updated_at', 'assigned_task','points', 'pending_task', 'in_progress_task', 'completed_task',
                  'requested_task', 'rejected_task', 'position', 'is_invited', 'guardian_code_status',
                  'is_deleted']

class JuniorProfileSerializer(serializers.ModelSerializer):
    """junior serializer"""
    email = serializers.SerializerMethodField('get_auth')
    first_name = serializers.SerializerMethodField('get_first_name')
    last_name = serializers.SerializerMethodField('get_last_name')
    notification_count = serializers.SerializerMethodField('get_notification_count')
    total_count = serializers.SerializerMethodField('get_total_count')
    complete_field_count = serializers.SerializerMethodField('get_complete_field_count')

    def get_auth(self, obj):
        """user email address"""
        return obj.auth.username

    def get_first_name(self, obj):
        """user first name"""
        return obj.auth.first_name

    def get_last_name(self, obj):
        """user last name"""
        return obj.auth.last_name

    def get_notification_count(self, obj):
        """total notification count"""
        return 0

    def get_total_count(self, obj):
        """total fields count"""
        return NUMBER['five']

    def get_complete_field_count(self, obj):
        """total filled fields count"""
        field_list = [obj.auth.first_name, obj.country_name,
                      obj.gender, obj.dob, obj.image]
        complete_field = [data for data in field_list if data is not None and data != '']
        return len(complete_field)
    class Meta(object):
        """Meta info"""
        model = Junior
        fields = ['id', 'email', 'first_name', 'last_name', 'country_name', 'country_code', 'phone', 'gender', 'dob',
                  'guardian_code', 'referral_code','is_active', 'is_complete_profile', 'created_at', 'image',
                  'updated_at', 'notification_count', 'total_count', 'complete_field_count', 'signup_method',
                  'is_invited', 'passcode', 'guardian_code_approved', 'is_deleted']

class AddJuniorSerializer(serializers.ModelSerializer):
    """Add junior serializer"""
    class Meta(object):
        """Meta info"""
        model = Junior
        fields = ['id', 'gender', 'dob', 'is_invited']


    def create(self, validated_data):
        """ create junior"""
        with transaction.atomic():
            email = self.context['email']
            guardian = self.context['user']
            relationship = self.context['relationship']
            profile_image = self.context['image']
            full_name = self.context['first_name'] + ' ' + self.context['last_name']
            guardian_data = Guardian.objects.filter(user__username=guardian).last()
            user_data = User.objects.create(username=email, email=email,
                                            first_name=self.context['first_name'],
                                            last_name=self.context['last_name'])
            special_password = make_special_password()
            user_data.set_password(special_password)
            user_data.save()
            junior_data = Junior.objects.create(auth=user_data, gender=validated_data.get('gender'),
                                                image=profile_image,
                                                dob=validated_data.get('dob'), is_invited=True,
                                                guardian_code=[guardian_data.guardian_code],
                                                junior_code=generate_code(JUN, user_data.id),
                                                referral_code=generate_code(ZOD, user_data.id),
                                                referral_code_used=guardian_data.referral_code,
                                                is_password_set=False, is_verified=True,
                                                guardian_code_status=[str(NUMBER['two'])])
            JuniorGuardianRelationship.objects.create(guardian=guardian_data, junior=junior_data,
                                                      relationship=relationship)
            total_junior = Junior.objects.all().count()
            JuniorPoints.objects.create(junior=junior_data, position=total_junior)
            """Generate otp"""
            otp_value = generate_otp()
            expiry_time = timezone.now() + timezone.timedelta(days=1)
            UserEmailOtp.objects.create(email=email, otp=otp_value,
                                        user_type='1', expired_at=expiry_time, is_verified=True)
            # add push notification
            UserNotification.objects.get_or_create(user=user_data)
            """Notification email"""
            junior_notification_email.delay(email, full_name, email, special_password)
            # push notification
            send_notification.delay(ASSOCIATE_JUNIOR, None, None, junior_data.auth_id, {})
            return junior_data



class RemoveJuniorSerializer(serializers.ModelSerializer):
    """User Update Serializer"""
    class Meta(object):
        """Meta class"""
        model = Junior
        fields = ('id', 'is_invited')
    def update(self, instance, validated_data):
        if instance:
            guardian_code = self.context['guardian_code']
            instance.is_invited = False
            if instance.guardian_code and ('-' in instance.guardian_code):
                instance.guardian_code.remove('-')
            index = instance.guardian_code.index(guardian_code)
            instance.guardian_code.remove(guardian_code)
            instance.guardian_code_status.pop(index)
            instance.save()
            return instance


class CompleteTaskSerializer(serializers.ModelSerializer):
    """User task Serializer"""
    class Meta(object):
        """Meta class"""
        model = JuniorTask
        fields = ('id', 'image')
    def update(self, instance, validated_data):
        instance.image = validated_data.get('image', instance.image)
        instance.requested_on = timezone.now().astimezone(pytz.utc)
        instance.task_status = str(NUMBER['four'])
        instance.is_approved = False
        instance.save()
        send_notification.delay(TASK_ACTION, instance.junior.auth_id, JUNIOR,
                                instance.guardian.user_id, {'task_id': instance.id})
        return instance

class JuniorPointsSerializer(serializers.ModelSerializer):
    """Junior points serializer"""
    junior_id = serializers.SerializerMethodField('get_junior_id')
    total_points = serializers.SerializerMethodField('get_points')
    in_progress_task = serializers.SerializerMethodField('get_in_progress_task')
    completed_task = serializers.SerializerMethodField('get_completed_task')
    requested_task = serializers.SerializerMethodField('get_requested_task')
    rejected_task = serializers.SerializerMethodField('get_rejected_task')
    pending_task = serializers.SerializerMethodField('get_pending_task')
    expired_task = serializers.SerializerMethodField('get_expired_task')
    position = serializers.SerializerMethodField('get_position')

    def get_junior_id(self, obj):
        """junior id"""
        return obj.junior.id

    def get_position(self, obj):
        return get_junior_leaderboard_rank(obj.junior)
    def get_points(self, obj):
        """total points"""
        points = JuniorPoints.objects.filter(junior=obj.junior).last()
        if points:
            return points.total_points

    def get_in_progress_task(self, obj):
        return JuniorTask.objects.filter(junior=obj.junior, task_status=IN_PROGRESS).count()

    def get_completed_task(self, obj):
        return JuniorTask.objects.filter(junior=obj.junior, task_status=COMPLETED).count()


    def get_requested_task(self, obj):
        return JuniorTask.objects.filter(junior=obj.junior, task_status=REQUESTED).count()


    def get_rejected_task(self, obj):
        return JuniorTask.objects.filter(junior=obj.junior, task_status=REJECTED).count()


    def get_pending_task(self, obj):
        return JuniorTask.objects.filter(junior=obj.junior, task_status=PENDING).count()

    def get_expired_task(self, obj):
        return JuniorTask.objects.filter(junior=obj.junior, task_status=EXPIRED).count()

    class Meta(object):
        """Meta info"""
        model = Junior
        fields = ['junior_id', 'total_points',  'position', 'pending_task', 'in_progress_task', 'completed_task',
                  'requested_task', 'rejected_task', 'expired_task', 'is_deleted']

class AddGuardianSerializer(serializers.ModelSerializer):
    """Add guardian serializer"""

    class Meta(object):
        """Meta info"""
        model = Guardian
        fields = ['id']


    def create(self, validated_data):
        """ invite and create guardian"""
        with transaction.atomic():
            email = self.context['email']
            junior = self.context['user']
            relationship = self.context['relationship']
            full_name = self.context['first_name'] + ' ' + self.context['last_name']
            junior_data = Junior.objects.filter(auth__username=junior).last()
            junior_data.guardian_code_status = GUARDIAN_CODE_STATUS[2][0]
            junior_data.save()
            instance = User.objects.filter(username=email).last()
            if instance:
                guardian_data = Guardian.objects.filter(user=instance).update(is_invited=True,
                                                                              referral_code=generate_code(ZOD,
                                                                                                      instance.id),
                                                                          referral_code_used=junior_data.referral_code,
                                                                              is_verified=True)
                UserNotification.objects.get_or_create(user=instance)
                return guardian_data
            else:
                user = User.objects.create(username=email, email=email,
                                           first_name=self.context['first_name'],
                                           last_name=self.context['last_name'])

                password = User.objects.make_random_password()
                user.set_password(password)
                user.save()
                guardian_data = Guardian.objects.create(user=user, is_invited=True,
                                                        referral_code=generate_code(ZOD, user.id),
                                                        referral_code_used=junior_data.referral_code,
                                                        is_password_set=False, is_verified=True)
                """Generate otp"""
                otp_value = generate_otp()
                expiry_time = timezone.now() + timezone.timedelta(days=1)
                UserEmailOtp.objects.create(email=email, otp=otp_value,
                                            user_type=str(NUMBER['two']), expired_at=expiry_time,
                                            is_verified=True)
                UserNotification.objects.get_or_create(user=user)
            JuniorGuardianRelationship.objects.create(guardian=guardian_data, junior=junior_data,
                                                      relationship=relationship)

            """Notification email"""
            junior_notification_email(email, full_name, email, password)
            # junior_approval_mail.delay(email, full_name) removed as per changes
            send_notification.delay(ASSOCIATE_REQUEST, junior_data.auth_id, JUNIOR, guardian_data.user_id, {})
            return guardian_data

class StartTaskSerializer(serializers.ModelSerializer):
    """User task Serializer"""
    task_duration = serializers.SerializerMethodField('get_task_duration')

    def get_task_duration(self, obj):
        """ remaining time to complete task"""
        due_date = datetime.combine(obj.due_date, datetime.max.time())
        # fetch real time
        # real_datetime = real_time()
        # new code
        due_date = due_date.astimezone(pytz.utc)
        real_datetime = timezone.now().astimezone(pytz.utc)
        # Perform the subtraction
        if due_date > real_datetime:
            time_difference = due_date - real_datetime
            time_only = convert_timedelta_into_datetime(time_difference)
            return str(time_difference.days) + ' days ' + str(time_only)
        return str(NUMBER['zero']) + ' days ' + '00:00:00:00000'
    class Meta(object):
        """Meta class"""
        model = JuniorTask
        fields = ('id', 'task_duration')
    def update(self, instance, validated_data):
        instance.task_status = str(NUMBER['two'])
        instance.save()
        return instance

class ReAssignTaskSerializer(serializers.ModelSerializer):
    """User task Serializer"""
    class Meta(object):
        """Meta class"""
        model = JuniorTask
        fields = ('id', 'due_date')
    def update(self, instance, validated_data):
        instance.task_status = str(NUMBER['one'])
        instance.due_date = validated_data.get('due_date')
        instance.is_approved = False
        instance.requested_on = None
        instance.save()
        return instance

class RemoveGuardianCodeSerializer(serializers.ModelSerializer):
    """User task Serializer"""
    class Meta(object):
        """Meta class"""
        model = Junior
        fields = ('id', )
    def update(self, instance, validated_data):
        guardian_code = self.context['guardian_code']
        if guardian_code in instance.guardian_code:
            if instance.guardian_code and ('-' in instance.guardian_code):
                instance.guardian_code.remove('-')
            if instance.guardian_code_status and ('-' in instance.guardian_code_status):
                instance.guardian_code_status.remove('-')
            index = instance.guardian_code.index(guardian_code)
            instance.guardian_code.remove(guardian_code)
            instance.guardian_code_status.pop(index)
        else:
            raise serializers.ValidationError({"error":ERROR_CODE['2082'],"code":"400", "status":"failed"})
        instance.save()
        return instance

class FAQSerializer(serializers.ModelSerializer):
    """FAQ Serializer"""

    class Meta(object):
        """meta info"""
        model = FAQ
        fields = ('id', 'question', 'description')

class CreateArticleCardSerializer(serializers.ModelSerializer):
    """Article card Serializer"""

    class Meta(object):
        """meta info"""
        model = ArticleCard
        fields = ('id', 'article')