forms.py

from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField
from wtforms.fields.simple import BooleanField
from wtforms.validators import DataRequired, Length, EqualTo, Email

class LoginForm(FlaskForm):
    """
    Fields:
    - username: User's unique identifier for login.
    - password: User's password for authentication.
    - submit: Button to submit the form.

    Validation:
    - username: Must be provided and between 4 to 25 characters.
    - password: Must be provided.
    """
    username = StringField('Username',
            validators=[
                DataRequired(message="Username is required."),
                Length(min=4, max=25, message="Username must be between 4 and 25 characters.")])

    password = PasswordField('Password',
        validators=[DataRequired(message="Password is required.")])

    submit = SubmitField('Login')

class RegistrationForm(FlaskForm):
    """
    Fields:
    - username: Desired unique username for the new user account.
    - email: User's email address, used for communication and recovery.
    - password: Desired password for the user account.
    - confirm_password: Re-entry of password to confirm accuracy.
    - is_admin: Checkbox option for admin registration (visible only to admins).
    - is_admin: Checkbox option for resource registration (visible only to admins).
    - submit: Button to submit the form.

    Validation:
    - username: Must be provided and between 3 to 20 characters.
    - email: Must be provided and in a valid email format.
    - password: Must be at least 6 characters long.
    - confirm_password: Must match the password field.
    """


    username = StringField('Username',
        validators=[
            DataRequired(message="Username is required."),
            Length(min=3, max=20, message="Username must be between 3 and 20 characters.") ])

    email = StringField('Email',
        validators=[
            DataRequired(message="Email is required."),
            Email(message="Enter a valid email address.")])

    password = PasswordField('Password',
        validators=[
            DataRequired(message="Password is required."),
            Length(min=6, message="Password must be at least 6 characters.")])

    confirm_password = PasswordField('Confirm Password',
        validators=[
            DataRequired(message="Please confirm your password."),
            EqualTo('password', message="Passwords must match.")])

    is_admin = BooleanField('Register as Admin')
    is_resource = BooleanField('Register as Medical Resource')
    submit = SubmitField('Register')

class BankDetailsForm(FlaskForm):
    """Information needed to build a Wise recipient + bank account."""
    full_name           = StringField('Account holder name',   validators=[DataRequired()])
    currency_needed     = StringField('Payout currency (e.g. NGN, GHS, USD)', validators=[DataRequired(), Length(min=3, max=3)])
    bank_account_number = StringField('Local account / IBAN',  validators=[DataRequired()])
    routing_number      = StringField('Routing / Sort / BIC',  validators=[Length(max=11)])
    submit              = SubmitField('Save')