from flask_wtf import FlaskForm
from flask_wtf.file import FileField, FileRequired
from wtforms import (
    BooleanField,
    StringField,
    SubmitField,
    SelectMultipleField,
    IntegerField
)
from wtforms.validators import InputRequired, Length
from app.services import SERVICES


class ContributionForm(FlaskForm):
    title = StringField(
        'Title',
        validators=[InputRequired(), Length(max=64)]
    )
    description = StringField(
        'Description',
        validators=[InputRequired(), Length(max=255)]
    )
    version = StringField(
        'Version',
        validators=[InputRequired(), Length(max=16)]
    )
    compatible_service_versions = SelectMultipleField(
        'Compatible service versions'
    )
    publisher = StringField(
        'Publisher',
        validators=[InputRequired(), Length(max=128)]
    )
    publisher_url = StringField(
        'Publisher URL',
        validators=[InputRequired(), Length(max=512)]
    )
    publishing_url = StringField(
        'Publishing URL',
        validators=[InputRequired(), Length(max=512)]
    )
    publishing_year = IntegerField(
        'Publishing year',
        validators=[InputRequired()]
    )
    shared = BooleanField('Shared', validators=[InputRequired()])
    model_file = FileField('File',validators=[FileRequired()])
    submit = SubmitField()


    def __init__(self, *args, **kwargs):
        service_manifest = SERVICES['tesseract-ocr-pipeline']
        super().__init__(*args, **kwargs)
        self.compatible_service_versions.choices = [('', 'Choose your option')]
        self.compatible_service_versions.choices += [
            (x, x) for x in service_manifest['versions'].keys()
        ]
        self.compatible_service_versions.default = ''