from sqlite3 import Cursor
import time
from typing import List

from todo.model.task import Task, ValidTaskForm
from todo.model.status import Status
from todo.model import difficulty, priority, status

def get(cursor: Cursor, s: Status) -> List[Task]:
    cursor.execute(
        " SELECT"
        "   id,"
        "   created_at,"
        "   updated_at,"
        "   name,"
        "   duration,"
        "   difficulty,"
        "   priority,"
        "   description"
        " FROM"
        "   tasks"
        " WHERE"
        "   status = ?",
        (status.format(s),))

    res = []

    for task in cursor.fetchall():
        res.append(Task(
            id = task[0],
            created_at = task[1],
            updated_at = task[2],
            name = task[3],
            duration = task[4],
            difficulty = difficulty.parse(task[5]),
            priority = priority.parse(task[6]),
            description = task[7]
        ))

    return res

def insert(cursor: Cursor, s: Status, form: ValidTaskForm):
    now = int(time.time())
    cursor.execute(
        " INSERT INTO tasks("
        "   created_at,"
        "   updated_at,"
        "   name,"
        "   duration,"
        "   difficulty,"
        "   priority,"
        "   description,"
        "   status"
        " ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
        (now, now, form.name, form.duration, difficulty.format(form.difficulty), priority.format(form.priority), form.description, status.format(s)))

    return Task(
        id = cursor.lastrowid,
        created_at = now,
        updated_at = now,
        name = form.name,
        duration = form.duration,
        difficulty = form.difficulty,
        priority = form.priority,
        description = form.description
    )

def update(cursor: Cursor, task: Task, form: ValidTaskForm):
    now = int(time.time())

    cursor.execute(
        " UPDATE tasks SET"
        "   updated_at = ?,"
        "   name = ?,"
        "   duration = ?,"
        "   difficulty = ?,"
        "   priority = ?,"
        "   description = ?"
        " WHERE id = ?",
        (now, form.name, form.duration, difficulty.format(form.difficulty), priority.format(form.priority), form.description, task.id))

    return Task(
        id = task.id,
        created_at = task.created_at,
        updated_at = now,
        name = form.name,
        duration = form.duration,
        difficulty = form.difficulty,
        priority = form.priority,
        description = form.description
    )

def delete(cursor: Cursor, ids: List[int]):
    if len(ids) >= 1:
        cursor.execute(
            "DELETE FROM tasks WHERE id IN (%s)" % ",".join("?"*len(ids)),
            ids)

def update_status(cursor: Cursor, ids: List[int], s: Status):
    if len(ids) >= 1:
        cursor.execute(
            "UPDATE tasks SET status = ? WHERE id IN (%s)" % ",".join("?"*len(ids)),
            [status.format(s)] + ids)