"""
views.py

This module contains the view functions for handling HTTP requests and rendering
responses in your application.

Each view function corresponds to a specific URL route and performs the necessary
actions to handle the request, process data, and generate a response.

This module is part of the recruitment project and is intended to
provide the main entry points for interacting with the application's functionality.
"""
import json
import random
import secrets
from django.core.mail import send_mail
from django.utils.translation import gettext_lazy as _
from django.shortcuts import render, redirect
from django.contrib.auth import login
from django.http import HttpResponse, JsonResponse
from django.contrib import messages
from django.core.paginator import Paginator
from django.views.decorators.http import require_http_methods
from notifications.signals import notify
from horilla.decorators import login_required, hx_request_required
from horilla.decorators import permission_required
from recruitment.models import Candidate, Recruitment
from recruitment.filters import CandidateFilter
from employee.models import Employee, EmployeeWorkInformation, EmployeeBankDetails
from onboarding.forms import (
    OnboardingCandidateForm,
    UserCreationForm,
    OnboardingViewTaskForm,
    OnboardingViewStageForm,
    EmployeeCreationForm,
    BankDetailsCreationForm,
)
from onboarding.models import (
    OnboardingStage,
    OnboardingTask,
    CandidateStage,
    CandidateTask,
    OnboardingPortal,
)
from onboarding.decorators import (
    all_manager_can_enter,
    stage_manager_can_enter,
    recruitment_manager_can_enter,
)


@login_required
@hx_request_required
@recruitment_manager_can_enter("onboarding.add_onboardingstage")
def stage_creation(request, obj_id):
    """
    function used to create onboarding stage.

    Parameters:
    request (HttpRequest): The HTTP request object.
    obj_id : recruitment id

    Returns:
    GET : return onboarding stage creation form template
    POST : return stage save function
    """
    form = OnboardingViewStageForm()
    if request.method == "POST":
        recruitment = Recruitment.objects.get(id=obj_id)
        form = OnboardingViewStageForm(request.POST)
        if form.is_valid():
            return stage_save(form, recruitment, request, obj_id)
    return render(request, "onboarding/stage-form.html", {"form": form, "id": obj_id})


def stage_save(form, recruitment, request, rec_id):
    """
    function used to save onboarding stage.

    Parameters:
    request (HttpRequest): The HTTP request object.
    recruitment : recruitment object
    rec_id : recruitment id

    Returns:
    GET : return onboarding view
    """
    stage = form.save()
    stage.recruitment_id.add(recruitment)
    stage.save()
    messages.success(request, _("New stage created successfully.."))
    users = [employee.employee_user_id for employee in stage.employee_id.all()]
    notify.send(
        request.user.employee_get,
        recipient=users,
        verb="You are chosen as onboarding stage manager",
        verb_ar="لقد تم اختيارك كمدير مرحلة التدريب.",
        verb_de="Sie wurden als Onboarding-Stage-Manager ausgewählt.",
        verb_es="Ha sido seleccionado/a como responsable de etapa de incorporación.",
        verb_fr="Vous avez été choisi(e) en tant que responsable de l'étape d'intégration.",
        icon="people-circle",
        redirect="/onboarding/onboarding-view",
    )
    response = render(
        request, "onboarding/stage-form.html", {"form": form, "id": rec_id}
    )
    return HttpResponse(
        response.content.decode("utf-8") + "<script>location.reload();</script>"
    )


@login_required
@hx_request_required
@recruitment_manager_can_enter("onboarding.change_onboardingstage")
def stage_update(request, stage_id, recruitment_id):
    """
    function used to update onboarding stage.

    Parameters:
    request (HttpRequest): The HTTP request object.
    stage_id : stage id
    recruitment_id : recruitment id

    Returns:
    GET : return onboarding stage update form template
    POST : return onboarding view
    """
    onboarding_stage = OnboardingStage.objects.get(id=stage_id)
    form = OnboardingViewStageForm(instance=onboarding_stage)
    if request.method == "POST":
        form = OnboardingViewStageForm(request.POST, instance=onboarding_stage)
        if form.is_valid():
            stage = form.save()
            messages.info(request, _("Stage is updated successfully.."))
            users = [employee.employee_user_id for employee in stage.employee_id.all()]
            notify.send(
                request.user.employee_get,
                recipient=users,
                verb="You are chosen as onboarding stage manager",
                verb_ar="لقد تم اختيارك كمدير مرحلة التدريب.",
                verb_de="Sie wurden als Onboarding-Stage-Manager ausgewählt.",
                verb_es="Ha sido seleccionado/a como responsable de etapa de incorporación.",
                verb_fr="Vous avez été choisi(e) en tant que responsable de l'étape d'intégration.",
                icon="people-circle",
                redirect="/onboarding/onboarding-view",
            )
            response = render(
                request,
                "onboarding/stage-update.html",
                {"form": form, "stage_id": stage_id, "recruitment_id": recruitment_id},
            )
            return HttpResponse(
                response.content.decode("utf-8") + "<script>location.reload();</script>"
            )
    return render(
        request,
        "onboarding/stage-update.html",
        {"form": form, "stage_id": stage_id, "recruitment_id": recruitment_id},
    )


@login_required
@permission_required("onboarding.delete_onboardingstage")
@recruitment_manager_can_enter("onboarding.delete_onboardingstage")
def stage_delete(request, stage_id):
    """
    function used to delete onboarding stage.

    Parameters:
    request (HttpRequest): The HTTP request object.
    stage_id : stage id

    Returns:
    GET : return onboarding view
    """
    onboarding_stage = OnboardingStage.objects.get(id=stage_id)
    if not onboarding_stage.candidate.exists():
        onboarding_stage.delete()
        messages.success(request, _("the stage deleted successfully..."))
    else:
        messages.error(request, _("There are candidates in this stage..."))
    return redirect(onboarding_view)


@login_required
@hx_request_required
@stage_manager_can_enter("onboarding.add_onboardingtask")
def task_creation(request, obj_id):
    """
    function used to create onboarding task.

    Parameters:
    request (HttpRequest): The HTTP request object.
    obj_id : recruitment id

    Returns:
    GET : return onboarding task creation form template
    POST : return onboarding view
    """
    form = OnboardingViewTaskForm()
    if request.method == "POST":
        recruitment = Recruitment.objects.get(id=obj_id)
        form_data = OnboardingViewTaskForm(request.POST)
        if form_data.is_valid():
            task = form_data.save()
            task.recruitment_id.add(recruitment)
            task.save()
            for candidate in recruitment.candidate.filter(
                hired=True, start_onboard=True
            ):
                CandidateTask(candidate_id=candidate, onboarding_task_id=task).save()

            messages.success(request, _("New task created successfully..."))
            users = [employee.employee_user_id for employee in task.employee_id.all()]
            notify.send(
                request.user.employee_get,
                recipient=users,
                verb="You are chosen as an onboarding task manager",
                verb_ar="لقد تم اختيارك كمدير مهام التدريب.",
                verb_de="Sie wurden als Onboarding-Aufgabenmanager ausgewählt.",
                verb_es="Ha sido seleccionado/a como responsable de tareas de incorporación.",
                verb_fr="Vous avez été choisi(e) en tant que responsable des tâches d'intégration.",
                icon="people-circle",
                redirect="/onboarding/onboarding-view",
            )
            response = render(
                request, "onboarding/task-form.html", {"form": form, "id": obj_id}
            )
            return HttpResponse(
                response.content.decode("utf-8") + "<script>location.reload();</script>"
            )
    return render(request, "onboarding/task-form.html", {"form": form, "id": obj_id})


@login_required
@hx_request_required
@stage_manager_can_enter("onboarding.change_onboardingtask")
def task_update(request, task_id, recruitment_id):
    """
    function used to update onboarding task.

    Parameters:
    request (HttpRequest): The HTTP request object.
    task_id : task id
    recruitment_id : recruitment id

    Returns:
    GET : return onboarding task update form template
    POST : return onboarding view
    """
    onboarding_task = OnboardingTask.objects.get(id=task_id)
    if request.method == "POST":
        form = OnboardingViewTaskForm(request.POST, instance=onboarding_task)
        if form.is_valid():
            task = form.save()
            messages.info(request, _("Task updated successfully.."))
            users = [employee.employee_user_id for employee in task.employee_id.all()]
            notify.send(
                request.user.employee_get,
                recipient=users,
                verb="You are chosen as an onboarding task manager",
                verb_ar="لقد تم اختيارك كمدير مهام التدريب.",
                verb_de="Sie wurden als Onboarding-Aufgabenmanager ausgewählt.",
                verb_es="Ha sido seleccionado/a como responsable de tareas de incorporación.",
                verb_fr="Vous avez été choisi(e) en tant que responsable des tâches d'intégration.",
                icon="people-circle",
                redirect="/onboarding/onboarding-view",
            )
            response = render(
                request,
                "onboarding/task-update.html",
                {"form": form, "task_id": task_id, "recruitment_id": recruitment_id},
            )
            return HttpResponse(
                response.content.decode("utf-8") + "<script>location.reload();</script>"
            )
    form = OnboardingViewTaskForm(instance=onboarding_task)
    return render(
        request,
        "onboarding/task-update.html",
        {"form": form, "task_id": task_id, "recruitment_id": recruitment_id},
    )


@login_required
@permission_required("onboarding.delete_onboardingtask")
@stage_manager_can_enter("onboarding.delete_onboardingtask")
def task_delete(request, task_id):
    """
    function used to delete onboarding task.

    Parameters:
    request (HttpRequest): The HTTP request object.
    task_id : task id


    Returns:
    GET : return onboarding view
    """
    onboarding_task = OnboardingTask.objects.get(id=task_id)
    onboarding_task.delete()
    messages.success(request, _("The task deleted successfully..."))
    return redirect(onboarding_view)


@login_required
@permission_required("recruitment.add_candidate")
def candidate_creation(request):
    """
    function used to create hired candidates .

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return candidate creation form template
    POST : return candidate view
    """
    form = OnboardingCandidateForm()
    if request.method == "POST":
        form = OnboardingCandidateForm(request.POST, request.FILES)
        if form.is_valid():
            candidate = form.save()
            candidate.hired = True
            candidate.save()
            messages.success(request, _("New candidate created successfully.."))
            return redirect(candidates_view)
    return render(request, "onboarding/candidate-creation.html", {"form": form})


@login_required
@permission_required("recruitment.change_candidate")
def candidate_update(request, obj_id):
    """
    function used to update hired candidates .

    Parameters:
    request (HttpRequest): The HTTP request object.
    obj_id : recruitment id

    Returns:
    GET : return candidate update form template
    POST : return candidate view
    """
    candidate = Candidate.objects.get(id=obj_id)
    form = OnboardingCandidateForm(instance=candidate)
    if request.method == "POST":
        form = OnboardingCandidateForm(request.POST, request.FILES, instance=candidate)
        if form.is_valid():
            form.save()
            messages.info(request, _("Candidate detail is updated successfully.."))
            return redirect(candidates_view)
    return render(request, "onboarding/candidate-update.html", {"form": form})


@login_required
@permission_required("recruitment.delete_candidate")
def candidate_delete(request, obj_id):
    """
    function used to delete hired candidates .

    Parameters:
    request (HttpRequest): The HTTP request object.
    obj_id : recruitment id

    Returns:
    GET : return candidate view
    """
    Candidate.objects.get(id=obj_id).delete()
    messages.success(request, _("Candidate deleted successfully.."))
    return redirect(candidates_view)


def paginator_qry(qryset, page_number):
    """
    function used to paginate query set
    """
    paginator = Paginator(qryset, 25)
    qryset = paginator.get_page(page_number)
    return qryset


@login_required
@permission_required("candidate.view_candidate")
def candidates_view(request):
    """
    function used to view hired candidates .

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return candidate view  template
    """
    queryset = Candidate.objects.filter(hired=True, start_onboard=False)
    candidate_filter_obj = CandidateFilter()
    previous_data = request.environ["QUERY_STRING"]
    page_number = request.GET.get("page")
    page_obj = paginator_qry(queryset, page_number)
    return render(
        request,
        "onboarding/candidates-view.html",
        {
            "candidates": page_obj,
            "form": candidate_filter_obj.form,
            "pd": previous_data,
        },
    )


@login_required
@permission_required("candidate.view_candidate")
def candidate_filter(request):
    """
    function used to filter hired candidates .

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return candidate view template
    """
    queryset = Candidate.objects.filter(hired=True, start_onboard=False)
    candidate_filter_obj = CandidateFilter(request.GET, queryset).qs
    previous_data = request.environ["QUERY_STRING"]
    page_number = request.GET.get("page")
    page_obj = paginator_qry(candidate_filter_obj, page_number)
    return render(
        request,
        "onboarding/candidates.html",
        {"candidates": page_obj, "pd": previous_data},
    )


@login_required
def email_send(request):
    """
    function used to send onboarding portal for hired candidates .

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return json response
    """
    if request.method != "POST":
        return JsonResponse("", safe=False)
    candidates = request.POST.get("candidates")
    json_mylist = json.loads(candidates)
    if len(json_mylist) <= 0:
        return JsonResponse({"message": _("No candidate choosed"), "tags": "danger"})
    for cand_id in json_mylist:
        candidate = Candidate.objects.get(id=cand_id)
        if candidate.start_onboard is False:
            token = secrets.token_hex(15)
            OnboardingPortal(candidate_id=candidate, token=token).save()
            send_mail(
                "Onboarding Portal",
                f"{request.get_host()}/onboarding/user-creation/{token}",
                "from@example.com",
                [candidate.email],
                fail_silently=False,
            )
            candidate.start_onboard = True
            candidate.save()
    return JsonResponse({"message": _("Email send successfully"), "tags": "success"})


@login_required
@all_manager_can_enter("onboarding.view_candidatestage")
def onboarding_view(request):
    """
    function used to view onboarding main view.

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return onboarding view template
    """
    candidates = Candidate.objects.filter(hired=True, start_onboard=True)
    for candidate in candidates:
        if not CandidateStage.objects.filter(candidate_id=candidate).exists():
            try:
                onboarding_stage = OnboardingStage.objects.filter(
                    recruitment_id=candidate.recruitment_id
                ).order_by("sequence")[0]
                CandidateStage(
                    candidate_id=candidate, onboarding_stage_id=onboarding_stage
                ).save()
            except Exception:
                messages.error(
                    request,
                    _("%(recruitment)s has no stage..")
                    % {"recruitment": candidate.recruitment_id},
                )
        if tasks := OnboardingTask.objects.filter(
            recruitment_id=candidate.recruitment_id
        ):
            for task in tasks:
                if not CandidateTask.objects.filter(
                    candidate_id=candidate, onboarding_task_id=task
                ).exists():
                    CandidateTask(
                        candidate_id=candidate, onboarding_task_id=task
                    ).save()
    recruitments = Recruitment.objects.all()
    onboarding_stages = OnboardingStage.objects.all()
    choices = CandidateTask.Choice
    return render(
        request,
        "onboarding/onboarding-view.html",
        {
            "recruitments": recruitments,
            "onboarding_stages": onboarding_stages,
            "choices": choices,
        },
    )


def user_creation(request, token):
    """
    function used to create user account in onboarding portal.

    Parameters:
    request (HttpRequest): The HTTP request object.
    token : random generated onboarding portal token

    Returns:
    GET : return user creation form template
    POST : return user_save function
    """
    try:
        onboarding_portal = OnboardingPortal.objects.get(token=token)
        form = UserCreationForm()
        if not onboarding_portal or onboarding_portal.used is True:
            return HttpResponse("Denied")
        try:
            if request.method == "POST":
                form = UserCreationForm(request.POST)
                if form.is_valid():
                    return user_save(form, onboarding_portal, request, token)
        except Exception:
            messages.error(request, _("User with email-id already exists.."))
        return render(
            request,
            "onboarding/user-creation.html",
            {
                "form": form,
                "company": onboarding_portal.candidate_id.recruitment_id.company_id,
            },
        )
    except Exception as error:
        return HttpResponse(error)


def user_save(form, onboarding_portal, request, token):
    """
    function used to save user.

    Parameters:
    request (HttpRequest): The HTTP request object.
    onboarding_portal : onboarding portal object
    token : random generated onboarding portal token

    Returns:
    GET : return profile view
    """
    user = form.save(commit=False)
    user.username = onboarding_portal.candidate_id.email
    user.save()
    onboarding_portal.used = True
    onboarding_portal.save()
    login(request, user)
    onboarding_portal.count += 1
    onboarding_portal.save()
    messages.success(request, _("Account created successfully.."))
    return redirect("profile-view", token)


def profile_view(request, token):
    """
    function used to view user profile.

    Parameters:
    request (HttpRequest): The HTTP request object.
    token : random generated onboarding portal token

    Returns:
    GET : return user profile template
    POST : update profile image of the user
    """
    candidate = Candidate.objects.get(email=request.user)
    if request.method == "POST":
        profile = request.FILES.get("profile")
        if profile is not None:
            candidate.profile = profile
            candidate.save()
            messages.success(request, _("Profile picture updated successfully.."))
    return render(
        request,
        "onboarding/profile-view.html",
        {
            "candidate": candidate,
            "token": token,
            "company": candidate.recruitment_id.company_id,
        },
    )


def employee_creation(request, token):
    """
    function used to create employee.

    Parameters:
    request (HttpRequest): The HTTP request object.
    token : random generated onboarding portal token.

    Returns:
    GET : return employee creation profile template.
    POST : return employee bank detail creation template.
    """
    candidate = Candidate.objects.get(email=request.user)
    onboarding_portal = OnboardingPortal.objects.get(token=token)
    form = EmployeeCreationForm(
        initial={
            "employee_first_name": candidate.name,
            "phone": candidate.mobile,
            "address": candidate.address,
            "dob": candidate.dob,
        }
    )
    if not Employee.objects.filter(employee_user_id=request.user).exists():
        if request.method == "POST":
            form_data = EmployeeCreationForm(request.POST)
            if form_data.is_valid():
                employee_personal_info = form_data.save(commit=False)
                employee_personal_info.employee_user_id = request.user
                employee_personal_info.email = candidate.email
                employee_personal_info.employee_profile = candidate.profile
                employee_personal_info.save()
                EmployeeWorkInformation(
                    employee_id=employee_personal_info,
                    date_joining=candidate.joining_date,
                    job_position_id=candidate.recruitment_id.job_position_id,
                ).save()
                onboarding_portal.count += 1
                onboarding_portal.save()
                messages.success(
                    request, _("Employee personal details created successfully..")
                )
                return redirect("employee-bank-details", token)
        onboarding_portal.count += 1
        onboarding_portal.save()
        return render(
            request,
            "onboarding/employee-creation.html",
            {"form": form, "employee": candidate.recruitment_id.company_id},
        )
    return redirect("employee-bank-details", token)


def employee_bank_details(request, token):
    """
    function used to create employee bank details creation.

    Parameters:
    request (HttpRequest): The HTTP request object.
    token : random generated onboarding portal token

    Returns:
    GET : return bank details creation template
    POST : return employee_bank_details_save function
    """
    onboarding_portal = OnboardingPortal.objects.get(token=token)
    form = BankDetailsCreationForm()
    employee_id = request.user.employee_get
    if not EmployeeBankDetails.objects.filter(employee_id=employee_id).exists():
        if request.method == "POST":
            form = BankDetailsCreationForm(request.POST)
            if form.is_valid():
                return employee_bank_details_save(form, request, onboarding_portal)
        return render(
            request,
            "onboarding/employee-bank-details.html",
            {
                "form": form,
                "company": onboarding_portal.candidate_id.recruitment_id.company_id,
            },
        )
    return redirect(welcome_aboard)


def employee_bank_details_save(form, request, onboarding_portal):
    """
    function used to save employee bank details.

    Parameters:
    request (HttpRequest): The HTTP request object.
    form : Form object.
    onboarding_portal : Onboarding portal object.

    Returns:
    GET : return welcome onboard view
    """
    employee_bank_detail = form.save(commit=False)
    employee_bank_detail.employee_id = Employee.objects.get(
        employee_user_id=request.user
    )
    employee_bank_detail.save()
    onboarding_portal.count += 1
    onboarding_portal.save()
    messages.success(request, _("Employee bank details created successfully.."))
    return redirect(welcome_aboard)


@login_required
def welcome_aboard(request):
    """
    function used to view welcome aboard.

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return welcome onboard view
    """
    return render(request, "onboarding/welcome-aboard.html")


@login_required
@hx_request_required
@require_http_methods(["POST"])
@all_manager_can_enter("onboarding.change_candidatetask")
def candidate_task_update(request, obj_id):
    """
    function used to update candidate task.

    Parameters:
    request (HttpRequest): The HTTP request object.
    obj_id : candidate task id

    Returns:
    POST : return candidate task template
    """
    status = request.POST.get("task")
    candidate_task = CandidateTask.objects.get(id=obj_id)
    candidate_task.status = status
    candidate_task.save()
    users = [
        employee.employee_user_id
        for employee in candidate_task.onboarding_task_id.employee_id.all()
    ]
    notify.send(
        request.user.employee_get,
        recipient=users,
        verb=f"The task {candidate_task.onboarding_task_id} of\
            {candidate_task.candidate_id} was updated to {candidate_task.status}.",
        verb_ar=f"تم تحديث المهمة {candidate_task.onboarding_task_id} للمرشح {candidate_task.candidate_id} إلى {candidate_task.status}.",
        verb_de=f"Die Aufgabe {candidate_task.onboarding_task_id} des Kandidaten {candidate_task.candidate_id} wurde auf {candidate_task.status} aktualisiert.",
        verb_es=f"La tarea {candidate_task.onboarding_task_id} del candidato {candidate_task.candidate_id} se ha actualizado a {candidate_task.status}.",
        verb_fr=f"La tâche {candidate_task.onboarding_task_id} du candidat {candidate_task.candidate_id} a été mise à jour à {candidate_task.status}.",
        icon="people-circle",
        redirect="/onboarding/onboarding-view",
    )
    messages.info(request, _("Candidate task updated successfully.."))
    choices = CandidateTask.Choice
    return render(
        request,
        "onboarding/candidate-task.html",
        {"choices": choices, "task": candidate_task},
    )


@login_required
@hx_request_required
@require_http_methods(["POST"])
@stage_manager_can_enter("onboarding.change_candidatestage")
def candidate_stage_update(request, candidate_id, recruitment_id):
    """
    function used to update candidate stage.

    Parameters:
    request (HttpRequest): The HTTP request object.
    candidate_id : Candidate id
    recruitment_id : Recruitment id

    Returns:
    POST : return candidate task template
    """
    stage_id = request.POST.get("stage")
    recruitment = Recruitment.objects.get(id=recruitment_id)
    stage = OnboardingStage.objects.get(id=stage_id)
    candidate = Candidate.objects.get(id=candidate_id)
    candidate_stage = CandidateStage.objects.get(candidate_id=candidate)
    candidate_stage.onboarding_stage_id = stage
    candidate_stage.save()
    onboarding_stages = OnboardingStage.objects.all()
    choices = CandidateTask.Choice
    messages.info(request, _("Candidate stage updated successfully..."))
    users = [
        employee.employee_user_id
        for employee in candidate_stage.onboarding_stage_id.employee_id.all()
    ]
    notify.send(
        request.user.employee_get,
        recipient=users,
        verb=f"The stage of {candidate_stage.candidate_id} \
            was updated to {candidate_stage.onboarding_stage_id}.",
        verb_ar=f"تم تحديث مرحلة المرشح {candidate_stage.candidate_id} إلى {candidate_stage.onboarding_stage_id}.",
        verb_de=f"Die Phase des Kandidaten {candidate_stage.candidate_id} wurde auf {candidate_stage.onboarding_stage_id} aktualisiert.",
        verb_es=f"La etapa del candidato {candidate_stage.candidate_id} se ha actualizado a {candidate_stage.onboarding_stage_id}.",
        verb_fr=f"L'étape du candidat {candidate_stage.candidate_id} a été mise à jour à {candidate_stage.onboarding_stage_id}.",
        icon="people-circle",
        redirect="/onboarding/onboarding-view",
    )
    return render(
        request,
        "onboarding/onboarding-table.html",
        {
            "recruitment": recruitment,
            "onboarding_stages": onboarding_stages,
            "choices": choices,
        },
    )


@login_required
def hired_candidate_chart(_):
    """
    function used to show hired candidates in all recruitments.

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return Json response labels, data, background_color, border_color.
    """
    labels = []
    data = []
    background_color = []
    border_color = []
    recruitments = Recruitment.objects.all()
    for recruitment in recruitments:
        red = random.randint(0, 255)
        green = random.randint(0, 255)
        blue = random.randint(0, 255)
        background_color.append(f"rgba({red}, {green}, {blue}, 0.2")
        border_color.append(f"rgb({red}, {green}, {blue})")
        labels.append(f"{recruitment}")
        data.append(recruitment.candidate.filter(hired=True).count())
    return JsonResponse(
        {
            "labels": labels,
            "data": data,
            "background_color": background_color,
            "border_color": border_color,
        },
        safe=False,
    )


@login_required
def onboard_candidate_chart(_):
    """
    function used to show onboard started candidates in recruitments.

    Parameters:
    request (HttpRequest): The HTTP request object.

    Returns:
    GET : return Json response labels, data, background_color, border_color.
    """
    labels = []
    data = []
    background_color = []
    border_color = []
    recruitments = Recruitment.objects.all()
    for recruitment in recruitments:
        red = random.randint(0, 255)
        green = random.randint(0, 255)
        blue = random.randint(0, 255)
        background_color.append(f"rgba({red}, {green}, {blue}, 0.2")
        border_color.append(f"rgb({red}, {green}, {blue})")
        labels.append(
            f"{recruitment.title} | {recruitment.start_date}"
        )
        data.append(
            recruitment.candidate.filter(hired=True, start_onboard=True).count()
        )
    return JsonResponse(
        {
            "labels": labels,
            "data": data,
            "background_color": background_color,
            "border_color": border_color,
        },
        safe=False,
    )


@login_required
@permission_required("candidate.view_candidate")
def update_joining(request):
    """
    Ajax method to update joinng date
    """
    print(request.POST)
    cand_id = request.POST["candId"]
    date = request.POST["date"]
    candidate_obj = Candidate.objects.get(id=cand_id)
    candidate_obj.joining_date = date
    candidate_obj.save()
    return JsonResponse({"message": "Success"})