from django import forms
from django.contrib.admin import widgets
from django.forms import (
    BaseInlineFormSet,
    BooleanField,
    Form,
    HiddenInput,
    ModelForm,
    ModelMultipleChoiceField,
    ModelChoiceField,
    ChoiceField,
    CharField,
    ValidationError,
    modelformset_factory,
    CheckboxSelectMultiple,
    SplitDateTimeWidget,
)
from django.utils.html import escape
from django.forms import inlineformset_factory
from django.shortcuts import get_object_or_404
from django_jsonforms.forms import JSONSchemaField
from django_svelte_jsoneditor.widgets import SvelteJSONEditorWidget


from atlas.models import (
    Case,
    CaseCollection,
    CaseDetail,
    CasePrior,
    CidReportAnswer,
    Differential,
    Finding,
    QuestionSchema,
    Resource,
    SelfReview,
    Series,
    SeriesDetail,
    SeriesImage,
    SeriesFinding,
    Condition,
    Structure,
    Subspecialty,
    UncategorisedDicom,
    UserReportAnswer,
    CaseDisplaySet,
)
from .models import NormalCase

from anatomy.models import Modality

from generic.models import Examination  # , Sign

# from generic.models import Examination, Site, Condition, Sign

from django.contrib.admin.widgets import FilteredSelectMultiple
from django.forms.widgets import RadioSelect, TextInput, Textarea, Select
from crispy_forms.layout import Submit, Layout, Fieldset, Field, Div, HTML
from crispy_forms.bootstrap import Accordion, AccordionGroup

from tinymce.widgets import TinyMCE

from dal import autocomplete

from autocomplete import (
    widgets as htmx_widgets,
    Autocomplete,
    AutocompleteWidget,
    ModelAutocomplete,
    register as autocomplete_register,
)

from loguru import logger


from generic.forms import (
    ExamAuthorFormMixin,
    ExamGroupsFormMixin,
    SplitDateTimeFieldDefaultTime,
    SplitDateTimeFieldDefaultTimeEnd,
)

from crispy_forms.helper import FormHelper

from atlas.helpers import get_cases_available_to_user

from typing import Any

from helpers.cimar import CimarAPI, NotFoundError
from rad.settings import CIMAR_USERNAME, CIMAR_PASSWORD


class ClearableInput(TextInput):
    template_name = "crispy_forms/widgets/clearable_input_single_line.html"


class ClearableTextarea(Textarea):
    template_name = "crispy_forms/widgets/clearable_input.html"


class CaseSelect(Select):
    template_name = "atlas/case_select_widget.html"

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

        return option

    def get_context(self, name: str, value, attrs) -> dict[str, Any]:
        context = super().get_context(name, value, attrs)
        return context

    pass


class ConditionForm(ModelForm):
    class Meta:
        model = Condition
        exclude = ["rcr_curriculum"]

        widgets = {
            "synonym": autocomplete.ModelSelect2Multiple(
                url="atlas:condition-autocomplete"
            ),
            "parent": autocomplete.ModelSelect2Multiple(
                url="atlas:condition-autocomplete"
            ),
            "rcr_curriculum_map": autocomplete.ModelSelect2Multiple(
                url="atlas:condition-autocomplete-rcr-curriculum"
            ),
        }


class CaseCollectionForm(ModelForm):
    class Meta:
        model = CaseCollection
        exclude = ["cases", "valid_cid_users", "valid_user_users", "author"]

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop("user")
        if kwargs.get("instance"):
            initial = kwargs.setdefault("initial", {})
        ModelForm.__init__(self, *args, **kwargs)
        super(CaseCollectionForm, self).__init__(*args, **kwargs)

        # Render collection_type as radio buttons and ensure it appears near the top
        if "collection_type" in self.fields:
            # Replace the model field with an explicit ChoiceField that uses RadioSelect
            original = self.fields["collection_type"]
            choices = getattr(original, "choices", ())
            initial = original.initial if hasattr(original, "initial") else None
            required = original.required
            label = original.label
            widget = RadioSelect(attrs={"class": "btn-check"})
            # assign custom template for rendering as button group
            #widget.template_name = "widgets/radioselect_buttons.html"
            self.fields["collection_type"] = forms.ChoiceField(
                choices=choices,
                widget=widget,
                initial=initial,
                required=required,
                label=label,
            )

        # Identify show_ fields
        show_fields = [f for f in self.fields if f.startswith("show_")]
        show_pre_fields = [f for f in show_fields if f.endswith("_pre")]
        show_post_fields = [f for f in show_fields if f.endswith("_post")]

        self.helper = FormHelper()
        self.helper.form_id = "id-casecollection-form"
        self.helper.form_class = "casecollection-form"
        self.helper.form_method = "post"
        self.helper.form_action = ""
        self.helper.form_tag = True
        # Group cid_user_groups and user_user_groups together if they exist in the form
        user_fields = []
        for f in ["cid_user_groups", "user_user_groups"]:
            if f in self.fields:
                user_fields.append(f)

        # Explicitly define show fields for pre and post
        show_pre_fields = [
            f
            for f in [
                "show_title_pre",
                "show_history_pre",
                "show_description_pre",
                "show_discussion_pre",
                "show_report_pre",
            ]
            if f in self.fields
        ]
        show_post_fields = [
            f
            for f in [
                "show_title_post",
                "show_history_post",
                "show_description_post",
                "show_discussion_post",
                "show_report_post",
            ]
            if f in self.fields
        ]

        self.helper.layout = Layout(
            Fieldset(
                "Collection Details",
                "name",
                Field("collection_type", css_class="mb-2"),
                Fieldset(
                    "Dates",
                    "restrict_to_dates",
                    Div(
                        Field(
                            "start_date",
                            wrapper_class="col-md-6",
                            css_class="form-group",
                        ),
                        Field(
                            "end_date", wrapper_class="col-md-6", css_class="form-group"
                        ),
                        css_class="form-row d-flex",
                    ),
                ),
                "active",
                "publish_results",
                "archive",
                "open_access",
                "candidates_only",
                "authors_only",
                "results_supervisor_visible",
                "exam_open_access",
                "markers",
                "exam_mode",
                "self_review",
                "feedback_once_collection_complete",
                "viewer_mode",
                "question_time_limit",
                "prerequisites",
            ),
            Fieldset("Valid User Groups", *user_fields) if user_fields else None,
            Div(
                Div(
                    Fieldset("Show fields (pre-exam)", *show_pre_fields),
                    css_class="col-md-6",
                    style="float:left;",
                ),
                Div(
                    Fieldset("Show fields (post-exam)", *show_post_fields),
                    css_class="col-md-6",
                    style="float:left;",
                ),
                css_class="row",
                style="display: flex; flex-wrap: wrap;",
            ),
            Submit("submit", "Save Collection", css_class="btn btn-primary"),
        )


class NormalCaseForm(ModelForm):
    # Keep non-model input fields for age entry so users can provide a
    # value + unit (e.g. 6 months) which will be converted to canonical
    # days on save. The model now stores only `age_days`.
    age_value = forms.IntegerField(required=False, min_value=0)
    age_unit = forms.ChoiceField(required=False, choices=NormalCase.AGE_UNIT_CHOICES)

    class Meta:
        model = NormalCase
        fields = ("examination", "modality", "notes")

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        # Do not render a <form> tag from crispy here because the template
        # already provides the surrounding form element (we inject this
        # fragment into a modal that contains the form). Rendering a second
        # <form> would nest forms and cause fields to be outside the
        # submitted form (HTMX would only send the outer form's fields).
        self.helper.form_method = "post"
        self.helper.form_tag = False
        self.helper.layout = Layout(
            Div(
                Field("age_value", wrapper_class="col-md-3"),
                Field("age_unit", wrapper_class="col-md-3"),
                Field("examination", wrapper_class="col-md-3"),
                Field("modality", wrapper_class="col-md-3"),
                css_class="row",
            ),
            Field("notes"),
            Submit("submit", "Save", css_class="btn btn-primary"),
        )

    def save(self, commit=True):
        # Respect commit flag. Compute canonical `age_days` from the
        # provided age_value/age_unit and set it on the instance.
        instance = super().save(commit=False)
        age_value = self.cleaned_data.get("age_value")
        age_unit = self.cleaned_data.get("age_unit")
        if age_value is not None and age_unit:
            instance.age_days = NormalCase.to_days(age_value, age_unit)
        else:
            # If the user left fields blank, clear any previous value.
            instance.age_days = None

        if commit:
            instance.save()
            self.save_m2m()

        return instance


class FindingForm(ModelForm):
    class Meta:
        model = Finding
        exclude = []

        widgets = {
            "synonym": autocomplete.ModelSelect2Multiple(
                url="atlas:finding-autocomplete"
            ),
        }


class StructureForm(ModelForm):
    class Meta:
        model = Structure
        exclude = []

        widgets = {
            "synonym": autocomplete.ModelSelect2Multiple(
                url="atlas:structure-autocomplete"
            ),
        }


class SeriesFindingForm(ModelForm):
    class Meta:
        model = SeriesFinding
        exclude = [
            "series",
            "annotation_json",
            "viewport_json",
            "current_image_id_index",
            "annotation_json_3d",
            "viewer_state_3d",
        ]

        widgets = {
            "findings": autocomplete.ModelSelect2Multiple(
                url="atlas:finding-autocomplete"
            ),
            "structures": autocomplete.ModelSelect2Multiple(
                url="atlas:structure-autocomplete"
            ),
            "conditions": autocomplete.ModelSelect2Multiple(
                url="atlas:condition-autocomplete"
            ),
        }

    def __init__(self, *args, **kwargs):
        if kwargs.get("series_id"):
            # We get the 'initial' keyword argument or initialize it
            # as a dict if it didn't exist.
            initial = kwargs.setdefault("initial", {})
            # The widget for a ModelMultipleChoiceField expects
            # a list of primary key for the selected data.
            initial["series"] = kwargs.pop("series_id")
        # elif kwargs.get("instance"):
        #    # We get the 'initial' keyword argument or initialize it
        #    # as a dict if it didn't exist.
        #    initial = kwargs.setdefault("initial", {})
        #    # The widget for a ModelMultipleChoiceField expects
        #    # a list of primary key for the selected data.
        #    #initial["structures"] = [t.pk for t in kwargs["structures"].case.all()]
        #    #initial["structures"] = [t.pk for t in kwargs["structures"].case.all()]

        super(SeriesFindingForm, self).__init__(*args, **kwargs)

        ModelForm.__init__(self, *args, **kwargs)


class SeriesForm(ModelForm):
    class Media:
        # Django also includes a few javascript files necessary
        # for the operation of this form element. You need to
        # include <script src="/admin/jsi18n"></script>
        # in the template.
        css = {
            "all": ["css/widgets.css"],
        }
        # Adding this javascript is crucial
        js = ["jsi18n.js", "tesseract.min.js", "js/upload_form_helpers.js"]

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop(
            "user"
        )  # To get request.user. Do not use kwargs.pop('user', None) due to potential security hole
        if kwargs.get("instance"):
            # We get the 'initial' keyword argument or initialize it
            # as a dict if it didn't exist.
            initial = kwargs.setdefault("initial", {})
            # The widget for a ModelMultipleChoiceField expects
            # a list of primary key for the selected data.
            initial["case"] = [t.pk for t in kwargs["instance"].case.all()]

        super(SeriesForm, self).__init__(*args, **kwargs)
        # self.fields["examination"] = ModelChoiceField(
        #    queryset=Examination.objects.all(),
        #    widget=FilteredSelectMultiple(verbose_name="Examination", is_stacked=False),
        # )

        self.fields["modality"] = ModelChoiceField(
            required=True,
            queryset=Modality.objects.all(),
        )

        ModelForm.__init__(self, *args, **kwargs)

        if self.user.groups.filter(name="atlas_editor").exists():
            case_queryset = Case.objects.all()
        else:
            case_queryset = Case.objects.filter(
                author__id=self.user.id
            )  # | Case.objects.filter(open_access=True)

        self.fields["case"] = ModelMultipleChoiceField(
            required=False,
            queryset=case_queryset,
            widget=FilteredSelectMultiple(verbose_name="Case", is_stacked=False),
        )

    def save(self, commit=True):
        # Get the unsaved Long instance
        instance = ModelForm.save(self, False)

        # Prepare a 'save_m2m' method for the form,
        old_save_m2m = self.save_m2m

        def save_m2m():
            old_save_m2m()
            instance.case.clear()
            for case in self.cleaned_data["case"]:
                # We need the id here
                instance.case.add(case.pk)

        self.save_m2m = save_m2m

        # Do we need to save all changes now?
        # if commit:
        instance.save()
        self.save_m2m()

        # instance.anonymise_images()

        return instance

    class Meta:
        model = Series
        exclude = ["author", "series_instance_uid"]

        widgets = {
            "examination": autocomplete.ModelSelect2(
                url="generic:examination-autocomplete"
            ),
            "description": Textarea(attrs={"maxlength": 1000, "rows": 5, "cols": 80}),
        }

    # def save(self, commit=True):
    #    # Get the unsaved Case instance
    #    instance = ModelForm.save(self, False)

    #    # Prepare a 'save_m2m' method for the form,
    #    old_save_m2m = self.save_m2m

    #    def save_m2m():
    #        old_save_m2m()
    #        # instance.exams.clear()
    #        # for exam in self.cleaned_data["exams"]:
    #        #    # We need the id here
    #        #    instance.exams.add(exam.pk)

    #    self.save_m2m = save_m2m

    #    # Do we need to save all changes now?
    #    # if commit:
    #    instance.save()
    #    self.save_m2m()

    #    return instance


class CaseForm(ModelForm):
    class Media:
        # Django also includes a few javascript files necessary
        # for the operation of this form element. You need to
        # include <script src="/admin/jsi18n"></script>
        # in the template.
        # history = forms.CharField(
        #    widget=ClearableTextarea(attrs={"maxlength": 1000, "rows": 5, "cols": 80}),
        #    required=False,
        # )

        css = {
            "all": ["css/widgets.css"],
        }
        # Adding this javascript is crucial
        js = ["jsi18n.js", "tesseract.min.js", "js/upload_form_helpers.js"]

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop(
            "user"
        )  # To get request.user. Do not use kwargs.pop('user', None) due to potential security hole

        # This is populated if we create the case from an exam/collection
        self.collection = None
        if kwargs["initial"] is not None and "exams" in kwargs["initial"]:
            collections = kwargs["initial"].pop("exams")
            logger.debug(collections)

            self.collection = get_object_or_404(CaseCollection, pk=collections[0])

        if kwargs.get("instance"):
            # We get the 'initial' keyword argument or initialize it
            # as a dict if it didn't exist.
            initial = kwargs.setdefault("initial", {})
            # The widget for a ModelMultipleChoiceField expects
            # a list of primary key for the selected data.
            # initial["exams"] = [t.pk for t in kwargs["instance"].exams.all()]

        ModelForm.__init__(self, *args, **kwargs)

        super(CaseForm, self).__init__(*args, **kwargs)
        # self.fields["series"].queryset =

        if self.user.groups.filter(name="atlas_editor").exists():
            case_queryset = Case.objects.all().order_by("pk").prefetch_related()
        else:
            case_queryset = get_cases_available_to_user(self.user)
        self.fields["previous_case"].queryset = case_queryset

        self.helper = FormHelper()
        self.helper.form_id = "id-case-form"
        self.helper.form_class = "case-form"
        self.helper.form_method = "post"
        self.helper.form_action = "submit"
        self.helper.form_tag = False

        self.helper.layout = Layout(
            Fieldset(
                "Case details",
                "title",
                "subspecialty",
                "description",
                "history",
                "presentation",
                "discussion",
                "report",
                "condition",
                "pathological_process",
                "open_access",
                "previous_case",
                "diagnostic_certainty",
                "cimar_uuid",
            ),
        )

    def get_queryset(self, request):
        return (
            super()
            .get_queryset(request)
            .prefetch_related(
                "condition", "subspecialty", "pathological_process", "series"
            )
        )

    class Meta:
        model = Case
        # fields = ['due_back']
        # fields = '__all__'
        fields = [
            # "examination",
            # "site",
            "title",
            "subspecialty",
            "description",
            "history",
            "presentation",
            "discussion",
            "condition",
            "pathological_process",
            "report",
            "open_access",
            "previous_case",
            "diagnostic_certainty",
            "cimar_uuid",
        ]
        # fields = ['question', 'findings', 'subspecialty', 'references']
        widgets = {
            # "normal": RadioSelect(
            # choices=[(True, 'Yes'),
            #     (False, 'No')])
            # "findings": TinyMCE(attrs={"cols": 80, "rows": 20}),
            # "mark_scheme": TinyMCE(attrs={"cols": 80, "rows": 30}),
            "title": ClearableInput(attrs={"rows": 1}),
            "description": ClearableTextarea(attrs={"cols": 80, "rows": 5}),
            "history": ClearableTextarea(attrs={"maxlength": 2000, "rows": 5}),
            "discussion": ClearableTextarea(attrs={"maxlength": 2000, "rows": 5}),
            "report": ClearableTextarea(attrs={"maxlength": 2000, "rows": 5}),
            "condition": autocomplete.ModelSelect2Multiple(
                url="atlas:condition-autocomplete"
            ),
            "presentation": autocomplete.ModelSelect2Multiple(
                url="atlas:presentation-autocomplete"
            ),
            "subspecialty": CheckboxSelectMultiple(),
            "pathological_process": CheckboxSelectMultiple(),
            "previous_case": CaseSelect(),
        }

    def clean_cimar_uuid(self):
        cimar_uuid = self.cleaned_data["cimar_uuid"]
        if cimar_uuid:
            with CimarAPI(username=CIMAR_USERNAME, password=CIMAR_PASSWORD) as api:
                try:
                    study = api.get_study_by_uuid(cimar_uuid)

                except NotFoundError:
                    raise ValidationError("Study not found in CIMAR")

        return cimar_uuid

    def save(self, commit=True):
        # Get the unsaved Case instance
        instance = ModelForm.save(self, False)

        # Prepare a 'save_m2m' method for the form,
        old_save_m2m = self.save_m2m

        def save_m2m():
            old_save_m2m()
            # instance.exams.clear()
            # for exam in self.cleaned_data["exams"]:
            #    # We need the id here
            #    instance.exams.add(exam.pk)

        self.save_m2m = save_m2m

        # Do we need to save all changes now?
        # if commit:
        instance.save()
        self.save_m2m()

        logger.debug(f"{self.collection=}")

        if self.collection is not None:
            logger.debug(f"{self.collection=}")
            case_no = self.collection.cases.count() + 1
            logger.debug(f"{case_no=}")
            logger.debug(f"{instance=}")

            # Create through model
            # cd = CaseDetail(case=instance, collection=exam, sort_order=case_no)
            self.collection.cases.add(
                instance, through_defaults={"sort_order": case_no}
            )

        return instance


CaseDifferentialFormSet = inlineformset_factory(
    Case,
    Differential,
    exclude=[],
    can_delete=True,
    extra=1,
    max_num=10,
    widgets={
        "condition": autocomplete.ModelSelect2(url="atlas:condition-autocomplete"),
        "text": Textarea(attrs={"maxlength": 1000, "rows": 3, "cols": 80}),
    },
)


class ResourceForm(ModelForm):
    class Meta:
        model = Resource
        exclude = ["author", "created_date"]

        widgets = {
            "description": Textarea(attrs={"cols": 80, "rows": 5}),
            "url": TextInput(attrs={"cols": 80, "rows": 1}),
        }


class CaseResourceForm(ModelForm):
    def __init__(self, *args, user, **kwargs):
        super(CaseResourceForm, self).__init__(*args, **kwargs)

        if not user.groups.filter(name="atlas_editor").exists():
            queryset = Resource.objects.filter(author__id=user.id)
        else:
            queryset = Resource.objects.all()

        self.fields["resource"] = ModelChoiceField(
            required=False,
            queryset=queryset,
            # widget=Select(verbose_name="Series", is_stacked=False),
        )

        self.fields["pre_review"] = BooleanField(required=False)


# class CaseSeriesForm(ModelForm):
#
#    def __init__(self, *args, user, **kwargs):
#        super(CaseSeriesForm, self).__init__(*args, **kwargs)
#
#        if not user.groups.filter(name="atlas_editor").exists():
#            queryset = Series.objects.filter(author__id=user.id)
#        else:
#            queryset = Series.objects.all()
#
#        # Optimize the queryset for the ModelChoiceField
#        queryset = queryset.select_related(
#            "modality"
#        ).prefetch_related(
#            "examination", "plane", "contrast", "images"
#        )
#
#        self.fields["series"] = ModelChoiceField(
#            required=False,
#            queryset=queryset,
#            # widget=Select(verbose_name="Series", is_stacked=False),
#        )


class CaseCollectionCaseForm(ModelForm):
    def __init__(self, *args, user, collection=None, **kwargs):
        super(CaseCollectionCaseForm, self).__init__(*args, **kwargs)

        queryset = get_cases_available_to_user(user, collection=collection)

        self.fields["case"] = ModelChoiceField(
            required=False,
            queryset=queryset,
            # widget=Select(verbose_name="Series", is_stacked=False),
        )


# SeriesFormSet = inlineformset_factory(
#    Case,
#    Series.case.through,
#    form=CaseSeriesForm,
#    exclude=[],
#    can_delete=True,
#    extra=0,
#    max_num=10,
# )

CaseCollectionCaseFormSet = inlineformset_factory(
    CaseCollection,
    Case.casecollection_set.through,
    form=CaseCollectionCaseForm,
    exclude=["question_schema", "question_answers"],
    can_delete=True,
    extra=0,
    max_num=50,
)

CaseResourceFormSet = inlineformset_factory(
    Case,
    Resource.case_set.through,
    form=CaseResourceForm,
    exclude=[],
    can_delete=True,
    extra=1,
    max_num=10,
)

SeriesImageFormSet = inlineformset_factory(
    Series,
    SeriesImage,
    exclude=[
        "dicom_tags_ohif",
        "replaced",
        "image_md5_hash",
        "image_blake3_hash",
        "is_dicom",
    ],
    can_delete=True,
    extra=0,
    max_num=2000,
)


class JsonAnswerForm(Form):
    json_answer = JSONSchemaField(
        schema={},
        # options = 'schema/options.json'
        options="schema/options.json",
    )

    class Meta:
        fields = ["json_answer"]

    def __init__(self, *args, question_schema=None, **kwargs):
        super(JsonAnswerForm, self).__init__(*args, **kwargs)
        if question_schema is not None:
            self.fields["json_answer"] = JSONSchemaField(
                schema=question_schema, options="schema/options.json"
            )
            self.fields["json_answer"].label = False


class BaseReportAnswerForm(ModelForm):
    class Meta:
        fields = ["answer"]

        widgets = {
            # "normal": RadioSelect(
            # choices=[(True, 'Yes'),
            #     (False, 'No')])
            # "findings": TinyMCE(attrs={"cols": 80, "rows": 20}),
            # "mark_scheme": TinyMCE(attrs={"cols": 80, "rows": 30}),
            "answer": Textarea(
                attrs={"cols": 100, "rows": 5, "placeholder": "Report text"}
            ),
        }

        # help_texts = {
        #    "answer": "Write your answer in here."
        # }

    def __init__(self, *args, casedetail, **kwargs):
        super(BaseReportAnswerForm, self).__init__(*args, **kwargs)
        self.fields["answer"].required = False


class BaseQuestionAnswerForm(ModelForm):
    json_answer = JSONSchemaField(schema={}, options="schema/options.json")

    class Meta:
        fields = ["json_answer"]
        labels = {"json_answer": ""}

        # help_texts = {
        #    "answer": "Write your answer in here."
        # }

    def __init__(self, *args, casedetail, **kwargs):
        super(BaseQuestionAnswerForm, self).__init__(*args, **kwargs)
        # self.fields["json_answer"].schema = casedetail.question_schema
        if casedetail.question_schema is not None:
            self.fields["json_answer"] = JSONSchemaField(
                schema=casedetail.question_schema, options="schema/options.json"
            )
            self.fields["json_answer"].label = ""


class CidReportAnswerForm(BaseReportAnswerForm):
    class Meta(BaseReportAnswerForm.Meta):
        model = CidReportAnswer


class UserReportAnswerForm(BaseReportAnswerForm):
    class Meta(BaseReportAnswerForm.Meta):
        model = UserReportAnswer


class CidQuestionAnswerForm(BaseQuestionAnswerForm):
    class Meta(BaseQuestionAnswerForm.Meta):
        model = CidReportAnswer


class UserQuestionAnswerForm(BaseQuestionAnswerForm):
    class Meta(BaseQuestionAnswerForm.Meta):
        model = UserReportAnswer


class CidReportAnswerMarkForm(ModelForm):
    class Meta:
        model = CidReportAnswer
        fields = ["score", "feedback"]

        widgets = {
            # "normal": RadioSelect(
            # choices=[(True, 'Yes'),
            #     (False, 'No')])
            # "findings": TinyMCE(attrs={"cols": 80, "rows": 20}),
            # "mark_scheme": TinyMCE(attrs={"cols": 80, "rows": 30}),
            "feedback": Textarea(attrs={"cols": 80, "rows": 4}),
        }

    def __init__(self, *args, **kwargs):
        super(CidReportAnswerMarkForm, self).__init__(*args, **kwargs)
        self.fields["score"].required = False


# class AddCollectionToCaseForm(Form):
#
#    def __init__(self, *args, user, **kwargs):
#        super(AddCollectionToCaseForm, self).__init__(*args, **kwargs)
#
#        if not user.groups.filter(name="atlas_editor").exists():
#            queryset = CaseCollection.objects.filter(author__id=user.id)
#        else:
#            queryset = CaseCollection.objects.all()
#
#        self.valid_collections = queryset
#        self.case = get_object_or_404(Case, pk=pk)
#
#        self.fields["casecollection"] = ModelMultipleChoiceField(
#            required=False,
#            queryset=queryset,
#            # widget=Select(verbose_name="Series", is_stacked=False),
#        )
#
#    def save(self, *args, **kwargs):
#        print("SAVE", args, kwargs)
#        instance = super(AddCollectionToCaseForm, self).save(*args, **kwargs)
#
#        # Here we save the modified project selection back into the database
#        instance.casecollection_set.set(self.cleaned_data['casecollection'])
#
#        print(f"{instance=}")
#
#        return instance
#
#    def clean_casecollection(self):
#        collection_set = self.cleaned_data["casecollection"]
#
#        print(f"{collection_set=}")
#
#        for col in collection_set:
#            if col not in self.valid_collections:
#                raise ValidationError("Invalid collection")
#
#        return collection_set


class AddCollectionToCaseForm(Form):
    def __init__(self, *args, user, **kwargs):
        super(AddCollectionToCaseForm, self).__init__(*args, **kwargs)

        if not user.groups.filter(name="atlas_editor").exists():
            queryset = CaseCollection.objects.filter(author__id=user.id)
        else:
            queryset = CaseCollection.objects.all()

        self.valid_collections = queryset

        self.fields["casecollection"] = ModelMultipleChoiceField(
            required=False,
            queryset=queryset,
            # widget=Select(verbose_name="Series", is_stacked=False),
        )

    def save(self, *args, **kwargs):
        instance = super(AddCollectionToCaseForm, self).save(*args, **kwargs)

        # Here we save the modified project selection back into the database
        instance.casecollection_set.set(self.cleaned_data["casecollection"])

        return instance

    def clean_casecollection(self):
        collection_set = self.cleaned_data["casecollection"]

        for col in collection_set:
            if col not in self.valid_collections:
                raise ValidationError("Invalid collection")

        return collection_set


class SelfReviewForm(ModelForm):
    class Meta:
        model = SelfReview
        fields = ["user_exam", "case", "comments", "findings", "interpretation"]
        widgets = {"user_exam": HiddenInput(), "case": HiddenInput()}

    def __init__(self, *args, **kwargs):
        if "user_exam_id" in kwargs:
            user_exam_id = kwargs.pop("user_exam_id")
        if "case_id" in kwargs:
            case_id = kwargs.pop("case_id")

        ModelForm.__init__(self, *args, **kwargs)
        super(SelfReviewForm, self).__init__(*args, **kwargs)


class UncategorisedDicomForm(ModelForm):
    class Meta:
        model = UncategorisedDicom
        fields = ["image"]  # , "user"]


# UncategorisedDicomFormset = formset_factory(UncategorisedDicomForm)

# class ConditionAutocompleteFormModel(forms.ModelForm):
#    class Meta:
#        model = Condition
#        fields = ["name"]
#        widgets = {
#            'members': widgets.Autocomplete(
#                name='members',
#                options=dict(multiselect=True, model=Condition)
#            )
#        }


class ConditionAutocomplete(ModelAutocomplete):
    model = Condition
    search_attrs = ["name"]


class ConditionAutocompleteForm(Form):
    condition = ModelChoiceField(
        queryset=Condition.objects.all(),
        widget=AutocompleteWidget(
            ac_class=ConditionAutocomplete  # , options=dict(model=Condition)
        ),
    )


autocomplete_register(ConditionAutocomplete)


class CaseCollectionAuthorForm(ExamAuthorFormMixin):
    class Meta(ExamAuthorFormMixin.Meta):
        model = CaseCollection


class CaseAuthorForm(ExamAuthorFormMixin):
    class Meta(ExamAuthorFormMixin.Meta):
        model = Case


class SeriesAuthorForm(ExamAuthorFormMixin):
    class Meta(ExamAuthorFormMixin.Meta):
        model = Series


class ExamGroupsForm(ExamGroupsFormMixin):
    class Meta(ExamGroupsFormMixin.Meta):
        model = CaseCollection


class AnswerJSONForm(Form):
    json = JSONSchemaField(schema="schema/schema.json", options="schema/options.json")


class SvelteJSONEditorWidgetOverride(SvelteJSONEditorWidget):
    template_name = "atlas/svelte_jsoneditor_widget_override.html"


class CaseQuestionForm(ModelForm):
    class Meta:
        model = CaseDetail
        fields = ["question_schema", "question_answers"]  # , "user"]

        widgets = {
            "question_schema": SvelteJSONEditorWidgetOverride(),
            "question_answers": SvelteJSONEditorWidgetOverride(),
        }

class CaseDetailForm(ModelForm):
    class Meta:
        model = CaseDetail
        fields = ["redact_history", "override_history"]

    def __init__(self, *args, case_history: str = None, **kwargs):
        """
        case_history: optional explicit history text to show (falls back to instance.case.history)
        """
        super().__init__(*args, **kwargs)

        # Determine original history text (safe-escaped for HTML)
        if case_history is None:
            try:
                case_history = self.instance.case.history if self.instance and getattr(self.instance, "case", None) else ""
            except Exception:
                case_history = ""
        case_history_html = escape(case_history or "No history available.")

        # Ensure override_history has a stable id we can reference from the inline script
        override_id = self.fields["override_history"].widget.attrs.get("id", "id_override_history")
        self.fields["override_history"].widget.attrs["id"] = override_id
        # Optionally make it a textarea style appearance if not already
        self.fields["override_history"].widget.attrs.setdefault("rows", 6)
        self.fields["override_history"].widget.attrs.setdefault("class", "form-control")

        # Build crispy helper/layout embedding the original history and buttons tied to override_history
        self.helper = FormHelper()
        self.helper.form_tag = False

        # Inline HTML block with buttons and a script that copies/clears the override field.
        # The script references the explicit override_id above.
        history_block = f"""
        <details class="mb-3">
          <summary class="h6" style="cursor:pointer;"><i class="bi bi-info-circle"></i> Show original case history</summary>
          <div class="mt-2 p-2 bg-dark text-light border rounded">
            <label class="form-label fw-bold">Original history (read-only)</label>
            <div id="original-history" style="white-space: pre-wrap;">{case_history_html}</div>
            <div class="form-text text-secondary">Use the buttons below to copy this into the override field or clear the override.</div>
            <div class="mt-2">
              <button type="button" class="btn btn-sm btn-outline-light" id="use-original-history">Copy original into override</button>
              <button type="button" class="btn btn-sm btn-outline-danger ms-2" id="clear-override-history">Clear override</button>
            </div>
          </div>
        </details>
        <script>
        document.addEventListener('DOMContentLoaded', function() {{
          var copyBtn = document.getElementById('use-original-history');
          var clearBtn = document.getElementById('clear-override-history');
          var original = '{case_history_html.replace("'", "\\'").replace("\\n", "\\\\n")}';
          var overrideField = document.getElementById('{override_id}');
          function setOverride(val) {{ 
            if(!overrideField) return; overrideField.value = val; overrideField.dispatchEvent(new Event('input',{{bubbles:true}})); }}
          if(copyBtn) copyBtn.addEventListener('click', function(e){{ setOverride(original); }});
          if(clearBtn) clearBtn.addEventListener('click', function(e){{ setOverride(''); }});
        }});
        </script>
        """

        # Compose layout: history block then the override field and redact checkbox
        self.helper.layout = Layout(
            HTML(history_block),
            Field("override_history"),
            Field("redact_history")
        )



class QuestionSchemaForm(ModelForm):
    class Meta:
        model = QuestionSchema
        fields = ["name", "description", "schema"]

        widgets = {
            "schema": SvelteJSONEditorWidgetOverride(),
        }


# class ModelPriorCaseForm(ModelForm):
#    class Meta:
#        model = CasePrior
#        fields = ["case_detail", "prior_case", "relation_text", "prior_visibility"]


class PriorCaseForm(Form):
    relation = CharField(max_length=255, required=True)

    prior_visibility = CharField(max_length=2, required=True)


class CaseSeriesForm(forms.ModelForm):
    def __init__(self, *args, queryset, user=None, is_atlas_editor=False, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["series"].queryset = queryset

    class Meta:
        model = SeriesDetail  # through model for Case.series
        fields = ["series", "sort_order", "feedback"]


class CaseUpdateSeriesForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop("user")
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_id = "id-case-form"
        self.helper.form_class = "case-form"
        self.helper.form_method = "post"
        self.helper.form_action = "submit"
        self.helper.form_tag = False
        self.helper.layout = Layout()

    class Meta:
        model = Case
        fields = []  # No fields, just for compatibility with UpdateView


class BaseSeriesFormSet(BaseInlineFormSet):
    def __init__(self, *args, queryset=None, **kwargs):
        self.series_queryset = queryset
        super().__init__(*args, **kwargs)

    def get_form_kwargs(self, index):
        kwargs = super().get_form_kwargs(index)
        kwargs["queryset"] = self.series_queryset
        return kwargs


SeriesFormSet = inlineformset_factory(
    Case,
    SeriesDetail,
    form=CaseSeriesForm,
    formset=BaseSeriesFormSet,
    extra=1,
    can_delete=True,
)


class CaseDisplaySetForm(forms.ModelForm):
    class Meta:
        model = CaseDisplaySet
        fields = [
            "name",
            "description",
            "findings",
            "structures",
            "conditions",
        ]
        widgets = {
            "name": forms.TextInput(
                attrs={"class": "form-control", "placeholder": "Display Set Name"}
            ),
            "description": forms.Textarea(
                attrs={"class": "form-control", "rows": 3, "placeholder": "Description"}
            ),
            "findings": autocomplete.ModelSelect2Multiple(
                url="atlas:finding-autocomplete"
            ),
            "structures": autocomplete.ModelSelect2Multiple(
                url="atlas:structure-autocomplete"
            ),
            "conditions": autocomplete.ModelSelect2Multiple(
                url="atlas:condition-autocomplete"
            ),
        }

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        # Optionally, you can filter queryset for findings/structures/conditions here if needed


class CaseCollectionUpdateCaseForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop("user")
        self.collection = kwargs.pop("collection", None)
        super().__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_id = "id-case-form"
        self.helper.form_class = "case-form"
        self.helper.form_method = "post"
        self.helper.form_action = "submit"
        self.helper.form_tag = False
        self.helper.layout = Layout()

    class Meta:
        model = CaseCollection
        fields = []  # No fields, just for compatibility with UpdateView