from django.db import models
import os


def dynamic_upload_to(instance, filename):
    # Generate a dynamic folder name based on some criteria (e.g., user, date, etc.)
    return os.path.join(
        "data/Standards", str(instance.levelNumber), filename
    )


# Create your models here.


class Levels(models.Model):
    # The Levels model defines the schema for levels in the database.
    # It has fields for the level's title, color, and number.
    levelTitle = models.CharField(max_length=200)
    levelColor = models.CharField(max_length=200)
    levelNumber = models.IntegerField()

    def __str__(self):
        return str(self.levelNumber)


class StandardsList(models.Model):
    # The StandardsList model defines the schema for standards in the database.
    # It has a foreign key to Levels, fields for the standard's file, title and path,
    # and a __str__ method to represent the standard by its title.
    levelID = models.ForeignKey(Levels, on_delete=models.CASCADE, blank=True, null=True)
    levelNumber = models.IntegerField(blank=True, null=True)
    standardFilePDF = models.FileField(upload_to=dynamic_upload_to)  # , upload_to=""
    standardFileWord = models.FileField(upload_to=dynamic_upload_to)  # , upload_to=""
    standardTitle = models.CharField(max_length=200)
    standardColor = models.CharField(max_length=200, blank=True)
    uploaded_at = models.DateTimeField(auto_now_add=True)

    def save(self, *args, **kwargs):
        # Automatically set StdColor based on the associated Levels model's color
        if self.levelID:
            self.standardColor = self.levelID.levelColor
        super().save(*args, **kwargs)

    def __str__(self):
        return self.standardTitle


class FileEvent(models.Model):
    EVENT_CHOICES = (
        ("UPLOAD", "File Uploaded"),
        ("DELETE", "File Deleted"),
    )

    event_type = models.CharField(max_length=10, choices=EVENT_CHOICES)
    file_name = models.CharField(max_length=255)
    timestamp = models.DateTimeField(auto_now_add=True)
    fileStatus = models.CharField(default='Pending', max_length=255)

    def __str__(self):
        return f"{self.get_event_type_display()}: {self.file_name}"