from django.db import models


class Level(models.Model):
    level_number = models.IntegerField()
    level_string = models.CharField(max_length=50)


class Word(models.Model):
    word = models.CharField(max_length=50)
    definition = models.CharField(max_length=255)
    level = models.ForeignKey(Level, on_delete=models.CASCADE, related_name="words")


class Grid(models.Model):
    level = models.ForeignKey(Level, on_delete=models.CASCADE, related_name="grids")
    words = models.ManyToManyField(Word, through="Placement")


class Direction:
    RIGHT = 1
    BOTTOM = 2


class Placement(models.Model):
    word = models.ForeignKey(Word, on_delete=models.CASCADE)
    grid = models.ForeignKey(Grid, on_delete=models.CASCADE)
    coordinates_first_letter = models.CharField(max_length=10)
    direction = models.SmallIntegerField(
        default=Direction.RIGHT,
        choices=[(Direction.RIGHT, "Right"), (Direction.BOTTOM, "Bottom")],
    )