from typing import Optional, List
from models import db, Tenant, FormConfig, Submission, UserRole
from models import AuditLog
import uuid
import logging

logger = logging.getLogger(__name__)

class FormAdminService:
    @staticmethod
    def get_forms(user, tenant):
        if user.role == UserRole.ADMIN:
            return FormConfig.query.join(Tenant).order_by(FormConfig.created_at.desc()).all()
        elif tenant:
            return FormConfig.query.filter_by(tenant_id=tenant.id).order_by(FormConfig.created_at.desc()).all()
        return []

    @staticmethod
    def create_form(tenant, name, description, form_structure, settings, is_active, user):
        form_id = f'form_{name.lower().replace(" ", "_")}_{str(uuid.uuid4())[:8]}'
        form = FormConfig(
            id=form_id,
            tenant_id=tenant.id,
            name=name,
            description=description,
            form_structure=form_structure,
            settings=settings,
            is_active=is_active
        )
        db.session.add(form)
        db.session.commit()

        AuditLog.log_action(
            action='create',
            resource_type='form',
            user=user,
            tenant=tenant,
            resource_id=form.id,
            details={'name': name, 'tenant_id': tenant.id}
        )
        return form

    @staticmethod
    def update_form(form, name, description, is_active, form_structure, settings, user, tenant):
        form.name = name if name else form.name
        form.description = description if description else form.description
        form.is_active = is_active
        if form_structure is not None:
            form.form_structure = form_structure
        if settings is not None:
            form.settings = settings

        db.session.commit()

        AuditLog.log_action(
            action='update',
            resource_type='form',
            user=user,
            tenant=tenant,
            resource_id=form.id,
            details={'name': form.name, 'is_active': form.is_active}
        )

    @staticmethod
    def delete_form(form, user, tenant):
        db.session.delete(form)
        db.session.commit()

        AuditLog.log_action(
            action='delete',
            resource_type='form',
            user=user,
            tenant=tenant,
            resource_id=form.id,
            details={'name': form.name}
        )