from typing import List

from todo.model.task import Task, ValidTaskForm
from todo.model.status import Status
import todo.db.tasks
import todo.db.task_tags
import todo.database

def get(cursor, status: Status) -> List[Task]:
    return todo.db.tasks.get(cursor, status)

def create(cursor, status: Status, task_form: ValidTaskForm) -> Task:
    task = todo.db.tasks.insert(cursor, status, task_form)
    todo.db.task_tags.insert_many(cursor, task.id, task_form.tags)
    todo.database.commit()
    return task

def update(cursor, task: Task, tags: List[int], task_form: ValidTaskForm) -> Task:
    old_tags = [t for t in tags if t not in task_form.tags]
    todo.db.task_tags.delete_from_tags(cursor, task.id, old_tags)

    new_tags = [t for t in task_form.tags if t not in tags]
    todo.db.task_tags.insert_many(cursor, task.id, new_tags)

    updated_task = todo.db.tasks.update(cursor, task, task_form)
    todo.database.commit()
    return updated_task

def delete(cursor, task_ids: List[int]):
    todo.db.task_tags.delete_from_tasks(cursor, task_ids)
    todo.db.tasks.delete(cursor, task_ids)
    todo.database.commit()

def update_status(cursor, task_ids: List[int], status: Status) -> List[Task]:
    todo.db.tasks.update_status(cursor, task_ids, status)
    todo.database.commit()