import datetime
from datetime import timedelta

from dispatcher.models import Task, Project


def convert_timedelta(td: datetime.timedelta):
    total_seconds = td.total_seconds()
    hours, remainder = divmod(total_seconds, 3600)
    minutes, seconds = divmod(remainder, 60)
    return f"{int(hours):02d}:{int(minutes):02d}:{int(seconds):02d}"

def str_to_timedelta(duration: str):
    parts = duration.split(":")
    hours = int(parts[0])
    minutes = int(parts[1])
    return timedelta(hours=hours, minutes=minutes)


def import_tasks(csv_content: str):
    tasks = []
    for line in csv_content.splitlines()[1:]:
        if len(line.strip()) == 0:
            continue

        date, duration, project_name, name = line.split(";")
        if duration == "-":
            duration = 0
        else:
            hours, mins = duration.split(":")
            duration = int(hours) * 60 + int(mins)

        project, created = Project.objects.get_or_create(name=project_name)
        if created:
            print(f"Created new project {project}")


        tasks.append(Task(
            date=date,
            duration=duration,
            project=project,
            name=name
        ))

    Task.objects.bulk_create(
        tasks,
        update_conflicts=True,
        unique_fields=["date", "project", "name"],
        update_fields=["duration"]
    )
    print(f"Imported {len(tasks)} tasks")