from django.db import models
from education.models import AcademicYear, Specialty, Student  # Предполагается, что модели находятся в приложении education
from employees.models import Employee  # Предполагается, что модель Employee находится в приложении employees

## Учет мероприятий (название приложения: events)

class EventStatus(models.Model):
    name = models.CharField(max_length=100, verbose_name="Название статуса")

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = "Статус проведения"
        verbose_name_plural = "Статусы проведения"
        ordering = ["name"]


class ActivityType(models.Model):
    name = models.CharField(max_length=100, verbose_name="Название вида деятельности")

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = "Деятельность мероприятия"
        verbose_name_plural = "Деятельности мероприятий"
        ordering = ["name"]

class Event(models.Model):
    academic_year = models.ForeignKey(
        AcademicYear, on_delete=models.CASCADE, verbose_name="Учебный год"
    )
    status = models.ForeignKey(
        EventStatus, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Статус мероприятия"
    )
    name = models.CharField(max_length=200, verbose_name="Название")
    location = models.CharField(max_length=255, blank=True, null=True, verbose_name="Место проведения")
    date = models.DateField(verbose_name="Дата проведения")
    description = models.TextField(blank=True, null=True, verbose_name="Описание")

    def __str__(self):
        return f"{self.name} ({self.date})"

    class Meta:
        verbose_name = "Мероприятие"
        verbose_name_plural = "Мероприятия"
        ordering = ["date", "name"]

class EventOrganizer(models.Model):
    employee = models.ForeignKey(
        Employee, on_delete=models.CASCADE, verbose_name="Сотрудник-организатор"
    )
    event = models.ForeignKey(
        Event, on_delete=models.CASCADE, verbose_name="Мероприятие"
    )

    def __str__(self):
        return f"{self.employee} - {self.event}"

    class Meta:
        verbose_name = "Организатор мероприятия"
        verbose_name_plural = "Организаторы мероприятий"
        unique_together = ("employee", "event")
        ordering = ["employee", "event"]

class EventDetail(models.Model):
    activity_type = models.ForeignKey(
        ActivityType, on_delete=models.CASCADE, verbose_name="Вид деятельности"
    )
    event = models.ForeignKey(
        Event, on_delete=models.CASCADE, verbose_name="Мероприятие"
    )

    def __str__(self):
        return f"{self.activity_type} - {self.event}"

    class Meta:
        verbose_name = "Деталь мероприятия"
        verbose_name_plural = "Детали мероприятий"
        unique_together = ("activity_type", "event")
        ordering = ["activity_type", "event"]

class EventParticipant(models.Model):
    student = models.ForeignKey(
        Student, on_delete=models.CASCADE, verbose_name="Студент"
    )
    event = models.ForeignKey(
        Event, on_delete=models.CASCADE, verbose_name="Мероприятие"
    )
    points = models.PositiveIntegerField(blank=True, default=0, verbose_name="Баллы за участие")

    def __str__(self):
        return f"{self.student} - {self.event}"

    class Meta:
        verbose_name = "Участник мероприятия"
        verbose_name_plural = "Участники мероприятий"
        ordering = ["event", "student"]

class MethodicalFile(models.Model):
    specialty = models.ForeignKey(
        Specialty, on_delete=models.CASCADE, verbose_name="Специальность"
    )
    name = models.CharField(max_length=200, verbose_name="Название")
    file_path = models.FileField(max_length=500, verbose_name="Файл")
    upload_date = models.DateField(auto_now_add=True, verbose_name="Дата добавления")
    employee = models.ForeignKey(
        Employee, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Сотрудник"
    )

    def __str__(self):
        return f"{self.name} ({self.specialty})"

    class Meta:
        verbose_name = "Методический файл"
        verbose_name_plural = "Методические файлы"
        ordering = ["specialty", "name", "upload_date", "employee"]

class RelevantMethodicalFile(models.Model):
    methodical_file = models.ForeignKey(
        MethodicalFile, on_delete=models.CASCADE, verbose_name="Методический файл"
    )
    activity_type = models.ForeignKey(
        ActivityType, on_delete=models.CASCADE, verbose_name="Вид деятельности"
    )

    def __str__(self):
        return f"{self.methodical_file} - {self.activity_type}"

    class Meta:
        verbose_name = "Релевантный методический файл"
        verbose_name_plural = "Релевантные методические файлы"

        ordering = ["methodical_file", "activity_type"]