ihrm/recruitment/forms.py

"""
forms.py

This module contains the form classes used in the application.

Each form represents a specific functionality or data input in the
application. They are responsible for validating
and processing user input data.

Classes:
- YourForm: Represents a form for handling specific data input.

Usage:
from django import forms

class YourForm(forms.Form):
    field_name = forms.CharField()

    def clean_field_name(self):
        # Custom validation logic goes here
        pass
"""

import logging
import uuid
from ast import Dict
from datetime import date, datetime
from typing import Any

from django import forms
from django.apps import apps
from django.core.exceptions import NON_FIELD_ERRORS, ValidationError
from django.template.loader import render_to_string
from django.utils.translation import gettext_lazy as _

from base.forms import Form
from base.methods import reload_queryset
from base.models import HorillaMailTemplate
from employee.filters import EmployeeFilter
from employee.models import Employee
from horilla import horilla_middlewares
from horilla_widgets.widgets.horilla_multi_select_field import HorillaMultiSelectField
from horilla_widgets.widgets.select_widgets import HorillaMultiSelectWidget
from recruitment import widgets
from recruitment.models import (
    Candidate,
    InterviewSchedule,
    JobPosition,
    Recruitment,
    RecruitmentSurvey,
    RejectedCandidate,
    RejectReason,
    Resume,
    Skill,
    SkillZone,
    SkillZoneCandidate,
    Stage,
    StageFiles,
    StageNote,
    SurveyTemplate,
)

logger = logging.getLogger(__name__)


class ModelForm(forms.ModelForm):
    """
    Overriding django default model form to apply some styles
    """

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        request = getattr(horilla_middlewares._thread_locals, "request", None)
        reload_queryset(self.fields)
        for field_name, field in self.fields.items():
            widget = field.widget
            if isinstance(widget, (forms.DateInput)):
                field.initial = date.today()

            if isinstance(
                widget,
                (forms.NumberInput, forms.EmailInput, forms.TextInput, forms.FileInput),
            ):
                label = _(field.label)
                field.widget.attrs.update(
                    {"class": "oh-input w-100", "placeholder": label}
                )
            elif isinstance(widget, forms.URLInput):
                field.widget.attrs.update(
                    {"class": "oh-input w-100", "placeholder": field.label}
                )
            elif isinstance(widget, (forms.Select,)):
                field.empty_label = _("---Choose {label}---").format(
                    label=_(field.label)
                )
                self.fields[field_name].widget.attrs.update(
                    {
                        "id": uuid.uuid4,
                        "class": "oh-select oh-select-2 w-100",
                        "style": "height:50px;",
                    }
                )
            elif isinstance(widget, (forms.Textarea)):
                label = _(field.label)
                field.widget.attrs.update(
                    {
                        "class": "oh-input w-100",
                        "placeholder": label,
                        "rows": 2,
                        "cols": 40,
                    }
                )
            elif isinstance(
                widget,
                (
                    forms.CheckboxInput,
                    forms.CheckboxSelectMultiple,
                ),
            ):
                field.widget.attrs.update({"class": "oh-switch__checkbox "})

            try:
                self.fields["employee_id"].initial = request.user.employee_get
            except:
                pass

            try:
                self.fields["company_id"].initial = (
                    request.user.employee_get.get_company
                )
            except:
                pass


class RegistrationForm(forms.ModelForm):
    """
    Overriding django default model form to apply some styles
    """

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        reload_queryset(self.fields)
        for field_name, field in self.fields.items():
            widget = field.widget
            if isinstance(widget, (forms.Select,)):
                label = ""
                if field.label is not None:
                    label = _(field.label)
                field.empty_label = _("---Choose {label}---").format(label=label)
                self.fields[field_name].widget.attrs.update(
                    {"id": uuid.uuid4, "class": "oh-select-2 oh-select--sm w-100"}
                )
            elif isinstance(widget, (forms.TextInput)):
                field.widget.attrs.update(
                    {
                        "class": "oh-input w-100",
                    }
                )
            elif isinstance(
                widget,
                (
                    forms.CheckboxInput,
                    forms.CheckboxSelectMultiple,
                ),
            ):
                field.widget.attrs.update({"class": "oh-switch__checkbox "})


class DropDownForm(forms.ModelForm):
    """
    Overriding django default model form to apply some styles
    """

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        reload_queryset(self.fields)
        for field_name, field in self.fields.items():
            widget = field.widget
            if isinstance(
                widget,
                (
                    forms.NumberInput,
                    forms.EmailInput,
                    forms.TextInput,
                    forms.FileInput,
                    forms.URLInput,
                ),
            ):
                if field.label is not None:
                    label = _(field.label)
                    field.widget.attrs.update(
                        {
                            "class": "oh-input oh-input--small oh-table__add-new-row d-block w-100",
                            "placeholder": label,
                        }
                    )
            elif isinstance(widget, (forms.Select,)):
                self.fields[field_name].widget.attrs.update(
                    {
                        "class": "oh-select-2 oh-select--xs-forced ",
                        "id": uuid.uuid4(),
                    }
                )
            elif isinstance(widget, (forms.Textarea)):
                if field.label is not None:
                    label = _(field.label)
                    field.widget.attrs.update(
                        {
                            "class": "oh-input oh-input--small oh-input--textarea",
                            "placeholder": label,
                            "rows": 1,
                            "cols": 40,
                        }
                    )
            elif isinstance(
                widget,
                (
                    forms.CheckboxInput,
                    forms.CheckboxSelectMultiple,
                ),
            ):
                field.widget.attrs.update({"class": "oh-switch__checkbox "})


class RecruitmentCreationForm(ModelForm):
    """
    Form for Recruitment model
    """

    # survey_templates = forms.ModelMultipleChoiceField(
    #     queryset=SurveyTemplate.objects.all(),
    #     widget=forms.SelectMultiple(),
    #     label=_("Survey Templates"),
    #     required=False,
    # )

    class Meta:
        """
        Meta class to add the additional info
        """

        model = Recruitment
        fields = "__all__"
        exclude = ["is_active"]
        widgets = {
            "start_date": forms.DateInput(attrs={"type": "date"}),
            "end_date": forms.DateInput(attrs={"type": "date"}),
            "description": forms.Textarea(attrs={"data-summernote": ""}),
        }
        labels = {"description": _("Description"), "vacancy": _("Vacancy")}

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("attendance_form.html", context)
        return table_html

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        reload_queryset(self.fields)
        if not self.instance.pk:
            self.fields["recruitment_managers"] = HorillaMultiSelectField(
                queryset=Employee.objects.filter(is_active=True),
                widget=HorillaMultiSelectWidget(
                    filter_route_name="employee-widget-filter",
                    filter_class=EmployeeFilter,
                    filter_instance_contex_name="f",
                    filter_template_path="employee_filters.html",
                    required=True,
                ),
                label="Employee",
            )

        skill_choices = [("", _("---Choose Skills---"))] + list(
            self.fields["skills"].queryset.values_list("id", "title")
        )
        self.fields["skills"].choices = skill_choices
        self.fields["skills"].choices += [("create", _("Create new skill "))]

    # def create_option(self, *args,**kwargs):
    #     option = super().create_option(*args,**kwargs)

    #     if option.get('value') == "create":
    #         option['attrs']['class'] = 'text-danger'

    #     return option

    def clean(self):
        if isinstance(self.fields["recruitment_managers"], HorillaMultiSelectField):
            ids = self.data.getlist("recruitment_managers")
            if ids:
                self.errors.pop("recruitment_managers", None)
        open_positions = self.cleaned_data.get("open_positions")
        is_published = self.cleaned_data.get("is_published")
        if is_published and not open_positions:
            raise forms.ValidationError(
                _("Job position is required if the recruitment is publishing.")
            )
        super().clean()


class StageCreationForm(ModelForm):
    """
    Form for Stage model
    """

    class Meta:
        """
        Meta class to add the additional info
        """

        model = Stage
        fields = "__all__"
        exclude = ["sequence", "is_active"]
        labels = {
            "stage": _("Stage"),
        }

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        reload_queryset(self.fields)
        if not self.instance.pk:
            self.fields["stage_managers"] = HorillaMultiSelectField(
                queryset=Employee.objects.filter(is_active=True),
                widget=HorillaMultiSelectWidget(
                    filter_route_name="employee-widget-filter",
                    filter_class=EmployeeFilter,
                    filter_instance_contex_name="f",
                    filter_template_path="employee_filters.html",
                    required=True,
                ),
                label="Employee",
            )

    def clean(self):
        if isinstance(self.fields["stage_managers"], HorillaMultiSelectField):
            ids = self.data.getlist("stage_managers")
            if ids:
                self.errors.pop("stage_managers", None)
        super().clean()


class CandidateCreationForm(ModelForm):
    """
    Form for Candidate model
    """

    load = forms.CharField(widget=widgets.RecruitmentAjaxWidget, required=False)

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        if self.instance.recruitment_id is not None:
            if self.instance is not None:
                self.fields["job_position_id"] = forms.ModelChoiceField(
                    queryset=self.instance.recruitment_id.open_positions.all(),
                    # additional field options
                )
        self.fields["recruitment_id"].widget.attrs = {"data-widget": "ajax-widget"}
        self.fields["job_position_id"].widget.attrs = {"data-widget": "ajax-widget"}

    class Meta:
        """
        Meta class to add the additional info
        """

        model = Candidate
        fields = [
            "profile",
            "name",
            "portfolio",
            "email",
            "mobile",
            "recruitment_id",
            "job_position_id",
            "dob",
            "gender",
            "address",
            "source",
            "country",
            "state",
            "zip",
            "resume",
            "referral",
            "canceled",
            "is_active",
        ]

        widgets = {
            "scheduled_date": forms.DateInput(attrs={"type": "date"}),
            "dob": forms.DateInput(attrs={"type": "date"}),
        }
        labels = {
            "name": _("Name"),
            "email": _("Email"),
            "mobile": _("Mobile"),
            "address": _("Address"),
            "zip": _("Zip"),
        }

    def save(self, commit: bool = ...):
        candidate = self.instance
        recruitment = candidate.recruitment_id
        stage = candidate.stage_id
        candidate.hired = False
        candidate.start_onboard = False
        if stage is not None:
            if stage.stage_type == "hired" and candidate.canceled is False:
                candidate.hired = True
                candidate.start_onboard = True
        candidate.recruitment_id = recruitment
        candidate.stage_id = stage
        job_id = self.data.get("job_position_id")
        if job_id:
            job_position = JobPosition.objects.get(id=job_id)
            self.instance.job_position_id = job_position
        return super().save(commit)

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string(
            "candidate/candidate_create_form_as_p.html", context
        )
        return table_html

    def clean(self):
        if self.instance.name is not None:
            self.errors.pop("job_position_id", None)
            if (
                self.instance.job_position_id is None
                or self.data.get("job_position_id") == ""
            ):
                raise forms.ValidationError(
                    {"job_position_id": "This field is required"}
                )
            if (
                self.instance.job_position_id
                not in self.instance.recruitment_id.open_positions.all()
            ):
                raise forms.ValidationError({"job_position_id": "Choose valid choice"})
        return super().clean()


from horilla.horilla_middlewares import _thread_locals


class ApplicationForm(RegistrationForm):
    """
    Form for create Candidate
    """

    load = forms.CharField(widget=widgets.RecruitmentAjaxWidget, required=False)
    active_recruitment = Recruitment.objects.filter(
        is_active=True, closed=False, is_published=True
    )
    recruitment_id = forms.ModelChoiceField(queryset=active_recruitment)

    class Meta:
        """
        Meta class to add the additional info
        """

        model = Candidate
        exclude = (
            "stage_id",
            "schedule_date",
            "referral",
            "start_onboard",
            "hired",
            "is_active",
            "canceled",
            "joining_date",
            "sequence",
            "offerletter_status",
            "source",
        )
        widgets = {
            "recruitment_id": forms.TextInput(
                attrs={
                    "required": "required",
                }
            ),
            "dob": forms.DateInput(
                attrs={
                    "type": "date",
                }
            ),
        }

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        request = getattr(_thread_locals, "request", None)

        self.fields["recruitment_id"].widget.attrs = {"data-widget": "ajax-widget"}
        self.fields["job_position_id"].widget.attrs = {"data-widget": "ajax-widget"}
        if request and request.user.has_perm("recruitment.add_candidate"):
            self.fields["profile"].required = False

    def clean(self, *args, **kwargs):
        name = self.cleaned_data["name"]
        request = getattr(_thread_locals, "request", None)

        if request and request.user.has_perm("recruitment.add_candidate"):
            profile_pic_url = f"https://ui-avatars.com/api/?name={name}"
            self.cleaned_data["profile"] = profile_pic_url

        super().clean()
        return self.cleaned_data


class RecruitmentDropDownForm(DropDownForm):
    """
    Form for Recruitment model
    """

    class Meta:
        """
        Meta class to add the additional info
        """

        fields = "__all__"
        model = Recruitment
        widgets = {
            "start_date": forms.DateInput(attrs={"type": "date"}),
            "end_date": forms.DateInput(attrs={"type": "date"}),
            "description": forms.Textarea(attrs={"data-summernote": ""}),
        }
        labels = {"description": _("Description"), "vacancy": _("Vacancy")}

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["job_position_id"].widget.attrs.update({"id": uuid.uuid4})
        self.fields["recruitment_managers"].widget.attrs.update({"id": uuid.uuid4})
        field = self.fields["is_active"]
        field.widget = field.hidden_widget()


class AddCandidateForm(ModelForm):
    """
    Form for Candidate model
    """

    verbose_name = "Add Candidate"

    class Meta:
        """
        Meta class to add the additional info
        """

        model = Candidate
        fields = [
            "profile",
            "resume",
            "name",
            "email",
            "mobile",
            "gender",
            "stage_id",
            "job_position_id",
        ]

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        initial = kwargs["initial"].get("stage_id")
        if initial:
            recruitment = Stage.objects.get(id=initial).recruitment_id
            self.instance.recruitment_id = recruitment
            self.fields["stage_id"].queryset = self.fields["stage_id"].queryset.filter(
                recruitment_id=recruitment
            )
            self.fields["job_position_id"].queryset = recruitment.open_positions
        self.fields["gender"].empty_label = None
        self.fields["job_position_id"].empty_label = None
        self.fields["stage_id"].empty_label = None

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


class StageDropDownForm(DropDownForm):
    """
    Form for Stage model
    """

    class Meta:
        """
        Meta class to add the additional info
        """

        model = Stage
        fields = "__all__"
        exclude = ["sequence", "is_active"]
        labels = {
            "stage": _("Stage"),
        }

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        stage = Stage.objects.last()
        if stage is not None and stage.sequence is not None:
            self.instance.sequence = stage.sequence + 1
        else:
            self.instance.sequence = 1


class MultipleFileInput(forms.ClearableFileInput):
    allow_multiple_selected = True


class MultipleFileField(forms.FileField):
    def __init__(self, *args, **kwargs):
        kwargs.setdefault("widget", MultipleFileInput())
        super().__init__(*args, **kwargs)

    def clean(self, data, initial=None):
        single_file_clean = super().clean
        if isinstance(data, (list, tuple)):
            result = [single_file_clean(d, initial) for d in data]
        else:
            result = [
                single_file_clean(data, initial),
            ]
        return result[0] if result else []


class StageNoteForm(ModelForm):
    """
    Form for StageNote model
    """

    class Meta:
        """
        Meta class to add the additional info
        """

        model = StageNote
        # exclude = (
        #     "updated_by",
        #     "stage_id",
        # )
        fields = ["description"]
        exclude = ["is_active"]

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        # field = self.fields["candidate_id"]
        # field.widget = field.hidden_widget()
        self.fields["stage_files"] = MultipleFileField(label="files")
        self.fields["stage_files"].required = False

    def save(self, commit: bool = ...) -> Any:
        attachment = []
        multiple_attachment_ids = []
        attachments = None
        if self.files.getlist("stage_files"):
            attachments = self.files.getlist("stage_files")
            self.instance.attachement = attachments[0]
            multiple_attachment_ids = []

            for attachment in attachments:
                file_instance = StageFiles()
                file_instance.files = attachment
                file_instance.save()
                multiple_attachment_ids.append(file_instance.pk)
        instance = super().save(commit)
        if commit:
            instance.stage_files.add(*multiple_attachment_ids)
        return instance, multiple_attachment_ids


class StageNoteUpdateForm(ModelForm):
    class Meta:
        """
        Meta class to add the additional info
        """

        model = StageNote
        exclude = ["updated_by", "stage_id", "stage_files", "is_active"]
        fields = "__all__"

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        field = self.fields["candidate_id"]
        field.widget = field.hidden_widget()


class QuestionForm(ModelForm):
    """
    QuestionForm
    """

    verbose_name = "Survey Questions"

    recruitment = forms.ModelMultipleChoiceField(
        queryset=Recruitment.objects.filter(is_active=True),
        required=False,
        label=_("Recruitment"),
    )
    options = forms.CharField(
        widget=forms.TextInput, label=_("Options"), required=False
    )

    class Meta:
        """
        Class Meta for additional options
        """

        model = RecruitmentSurvey
        fields = "__all__"
        exclude = ["recruitment_ids", "job_position_ids", "is_active", "options"]
        labels = {
            "question": _("Question"),
            "sequence": _("Sequence"),
            "type": _("Type"),
            "options": _("Options"),
            "is_mandatory": _("Is Mandatory"),
        }

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string(
            "survey/question_template_organized_form.html", context
        )
        return table_html

    def clean(self):
        cleaned_data = super().clean()
        recruitment = self.cleaned_data["recruitment"]
        question_type = self.cleaned_data["type"]
        options = self.cleaned_data.get("options")
        if not recruitment.exists():  # or jobs.exists()):
            raise ValidationError(
                {"recruitment": _("Choose any recruitment to apply this question")}
            )
        self.recruitment = recruitment
        if question_type in ["options", "multiple"] and (
            options is None or options == ""
        ):
            raise ValidationError({"options": "Options field is required"})
        return cleaned_data

    def save(self, commit=True):
        instance = super().save(commit=False)
        if instance.type in ["options", "multiple"]:
            additional_options = []
            for key, value in self.cleaned_data.items():
                if key.startswith("options") and value:
                    additional_options.append(value)

            instance.options = ",".join(additional_options)
            if commit:
                instance.save()
                self.save_m2m()
        else:
            instance.options = ""
        return instance

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        instance = kwargs.get("instance", None)
        self.option_count = 1

        def create_options_field(option_key, initial=None):
            self.fields[option_key] = forms.CharField(
                widget=forms.TextInput(
                    attrs={
                        "name": option_key,
                        "id": f"id_{option_key}",
                        "class": "oh-input w-100",
                    }
                ),
                label=_("Options"),
                required=False,
                initial=initial,
            )

        if instance:
            split_options = instance.options.split(",")
            for i, option in enumerate(split_options):
                if i == 0:
                    create_options_field("options", option)
                else:
                    self.option_count += 1
                    create_options_field(f"options{i}", option)

        if instance:
            self.fields["recruitment"].initial = instance.recruitment_ids.all()
        self.fields["type"].widget.attrs.update(
            {"class": " w-100", "style": "border:solid 1px #6c757d52;height:50px;"}
        )
        for key, value in self.data.items():
            if key.startswith("options"):
                self.option_count += 1
                create_options_field(key, initial=value)
        fields_order = list(self.fields.keys())
        fields_order.remove("recruitment")
        fields_order.insert(2, "recruitment")
        self.fields = {field: self.fields[field] for field in fields_order}


class SurveyForm(forms.Form):
    """
    SurveyTemplateForm
    """

    def __init__(self, recruitment, *args, **kwargs) -> None:
        super().__init__(recruitment, *args, **kwargs)
        questions = recruitment.recruitmentsurvey_set.all()
        context = {"form": self, "questions": questions}
        form = render_to_string("survey_form.html", context)
        self.form = form
        return
        # for question in questions:
        # self


class TemplateForm(ModelForm):
    """
    TemplateForm
    """

    verbose_name = "Template"

    class Meta:
        model = SurveyTemplate
        fields = "__all__"
        exclude = ["is_active"]

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


class AddQuestionForm(Form):
    """
    AddQuestionForm
    """

    verbose_name = "Add Question"
    question_ids = forms.ModelMultipleChoiceField(
        queryset=RecruitmentSurvey.objects.all(), label="Questions"
    )
    template_ids = forms.ModelMultipleChoiceField(
        queryset=SurveyTemplate.objects.all(), label="Templates"
    )

    def save(self):
        """
        Manual save/adding of questions to the templates
        """
        for question in self.cleaned_data["question_ids"]:
            question.template_id.add(*self.data["template_ids"])

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


exclude_fields = [
    "id",
    "profile",
    "portfolio",
    "resume",
    "sequence",
    "schedule_date",
    "created_at",
    "created_by",
    "modified_by",
    "is_active",
    "last_updated",
    "horilla_history",
]


class CandidateExportForm(forms.Form):
    model_fields = Candidate._meta.get_fields()
    field_choices = [
        (field.name, field.verbose_name.capitalize())
        for field in model_fields
        if hasattr(field, "verbose_name") and field.name not in exclude_fields
    ]
    field_choices = field_choices + [
        ("rejected_candidate__description", "Rejected Description"),
    ]
    selected_fields = forms.MultipleChoiceField(
        choices=field_choices,
        widget=forms.CheckboxSelectMultiple,
        initial=[
            "name",
            "recruitment_id",
            "job_position_id",
            "stage_id",
            "email",
            "mobile",
            "hired",
            "joining_date",
        ],
    )


class SkillZoneCreateForm(ModelForm):
    verbose_name = "Skill Zone"

    class Meta:
        """
        Class Meta for additional options
        """

        model = SkillZone
        fields = "__all__"
        exclude = ["is_active"]

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


class SkillZoneCandidateForm(ModelForm):
    verbose_name = "Skill Zone Candidate"
    candidate_id = forms.ModelMultipleChoiceField(
        queryset=Candidate.objects.all(),
        widget=forms.SelectMultiple,
        label=_("Candidate"),
    )

    class Meta:
        """
        Class Meta for additional options
        """

        model = SkillZoneCandidate
        fields = "__all__"
        exclude = [
            "added_on",
            "is_active",
        ]

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html

    def clean_candidate_id(self):
        selected_candidates = self.cleaned_data["candidate_id"]

        # Ensure all selected candidates are instances of the Candidate model
        for candidate in selected_candidates:
            if not isinstance(candidate, Candidate):
                raise forms.ValidationError("Invalid candidate selected.")

        return selected_candidates.first()

    def __init__(self, *args, **kwargs) -> None:
        super().__init__(*args, **kwargs)
        self.fields["candidate_id"].empty_label = None
        if self.instance.pk:
            self.verbose_name = (
                self.instance.candidate_id.name
                + " / "
                + self.instance.skill_zone_id.title
            )

    def save(self, commit: bool = ...) -> Any:
        super().save(commit)
        other_candidates = list(
            set(self.data.getlist("candidate_id"))
            - {
                str(self.instance.candidate_id.id),
            }
        )
        if commit:
            cand = self.instance
            for id in other_candidates:
                cand.pk = None
                cand.id = None
                cand.candidate_id = Candidate.objects.get(id=id)
                try:
                    super(SkillZoneCandidate, cand).save()
                except Exception as e:
                    logger.error(e)

        return other_candidates


class ToSkillZoneForm(ModelForm):
    verbose_name = "Add To Skill Zone"
    skill_zone_ids = forms.ModelMultipleChoiceField(
        queryset=SkillZone.objects.all(), label=_("Skill Zones")
    )

    class Meta:
        """
        Class Meta for additional options
        """

        model = SkillZoneCandidate
        fields = "__all__"
        exclude = [
            "skill_zone_id",
            "is_active",
            "candidate_id",
        ]
        error_messages = {
            NON_FIELD_ERRORS: {
                "unique_together": "This candidate alreay exist in this skill zone",
            }
        }

    def clean(self):
        cleaned_data = super().clean()
        candidate = cleaned_data.get("candidate_id")
        skill_zones = cleaned_data.get("skill_zone_ids")
        skill_zone_list = []
        for skill_zone in skill_zones:
            # Check for the unique together constraint manually
            if SkillZoneCandidate.objects.filter(
                candidate_id=candidate, skill_zone_id=skill_zone
            ).exists():
                # Raise a ValidationError with a custom error message
                skill_zone_list.append(skill_zone)
        if len(skill_zone_list) > 0:
            skill_zones_str = ", ".join(
                str(skill_zone) for skill_zone in skill_zone_list
            )
            raise ValidationError(f"{candidate} already exists in {skill_zones_str}.")

            # cleaned_data['skill_zone_id'] =skill_zone
        return cleaned_data

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


class RejectReasonForm(ModelForm):
    """
    RejectReasonForm
    """

    verbose_name = "Reject Reason"

    class Meta:
        model = RejectReason
        fields = "__all__"
        exclude = ["is_active"]

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


class RejectedCandidateForm(ModelForm):
    """
    RejectedCandidateForm
    """

    verbose_name = "Rejected Candidate"

    class Meta:
        model = RejectedCandidate
        fields = "__all__"
        exclude = ["is_active"]

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["reject_reason_id"].empty_label = None
        self.fields["candidate_id"].widget = self.fields["candidate_id"].hidden_widget()


class ScheduleInterviewForm(ModelForm):
    """
    ScheduleInterviewForm
    """

    verbose_name = "Schedule Interview"

    class Meta:
        model = InterviewSchedule
        fields = "__all__"
        exclude = ["is_active"]

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["interview_date"].widget = forms.DateInput(
            attrs={"type": "date", "class": "oh-input w-100"}
        )
        self.fields["interview_time"].widget = forms.TimeInput(
            attrs={"type": "time", "class": "oh-input w-100"}
        )

    def clean(self):

        instance = self.instance
        cleaned_data = super().clean()
        interview_date = cleaned_data.get("interview_date")
        interview_time = cleaned_data.get("interview_time")
        managers = cleaned_data["employee_id"]
        if not instance.pk and interview_date and interview_date < date.today():
            self.add_error("interview_date", _("Interview date cannot be in the past."))

        if not instance.pk and interview_time:
            now = datetime.now().time()
            if (
                not instance.pk
                and interview_date == date.today()
                and interview_time < now
            ):
                self.add_error(
                    "interview_time", _("Interview time cannot be in the past.")
                )

        if apps.is_installed("leave"):
            from leave.models import LeaveRequest

            leave_employees = LeaveRequest.objects.filter(
                employee_id__in=managers, status="approved"
            )
        else:
            leave_employees = []

        employees = [
            leave.employee_id.get_full_name()
            for leave in leave_employees
            if interview_date in leave.requested_dates()
        ]

        if employees:
            self.add_error(
                "employee_id", _(f"{employees} have approved leave on this date")
            )

        return cleaned_data

    def as_p(self, *args, **kwargs):
        """
        Render the form fields as HTML table rows with Bootstrap styling.
        """
        context = {"form": self}
        table_html = render_to_string("common_form.html", context)
        return table_html


class SkillsForm(ModelForm):
    class Meta:
        model = Skill
        fields = ["title"]


class ResumeForm(ModelForm):
    class Meta:
        model = Resume
        fields = ["file", "recruitment_id"]
        widgets = {"recruitment_id": forms.HiddenInput()}

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["file"].widget.attrs.update(
            {
                "onchange": "submitForm($(this))",
            }
        )