from flask_wtf import FlaskForm
from flask import url_for

from app import models as m


# Using: {{ form_hidden_tag() }}
def form_hidden_tag():
    form = FlaskForm()
    return form.hidden_tag()


# Using: {{ build_qa_url(interpretation) }}
def build_qa_url_using_interpretation(interpretation: m.Interpretation):
    section: m.Section = interpretation.section
    collection: m.Collection = section.collection
    sub_collection = None
    if not collection.parent.is_root:
        sub_collection: m.Collection = collection
        collection: m.Collection = collection.parent
    book: m.Book = section.version.book

    url = url_for(
        "book.qa_view",
        book_id=book.id,
        collection_id=collection.id,
        sub_collection_id=sub_collection.id if sub_collection else None,
        section_id=section.id,
        interpretation_id=interpretation.id,
    )
    return url