from django.db import models
from django.contrib.auth import get_user_model
User = get_user_model()

from datetime import date
import pendulum

from ultron.tools.models import Markdownizable, Seasonisable
from ultron.people.models import Gymnast
from ultron.planning.models import Event
from ultron.objective.models import Educative, Skill, Routine

ROUTINE_CHOICE = (
    (0, "Other"),
    (1, "R1"),
    (2, "R2"),
    (3, "R3"),
    (4, "R4"),
    (5, "R1S"),
    (6, "R2S"),
    (7, "R3S"),
    (8, "R4S"),
)

LEARNING_STEP_CHOICES = (
    (0, "No"),
    (1, "With help"),
    (2, "Without help"),
    (3, "Chained"),
    (4, "Masterised"),
)


class Chrono(Seasonisable):
    """
    Représente les chronos (de chandelles ou de série) enregistrés pour un(e) gymnaste.
    """

    CHRONO_TYPE_CHOICE = (
        (0, "10 |"),
        (1, "Routine 1"),
        (2, "Routine 2"),
        (3, "Routine 3"),
        (4, "Routine 4"),
        (9, "Other"),
    )

    SCORE_TYPE_CHOICE = (
        (0, "Chrono"),
        (1, "ToF"),
    )

    class Meta:
        verbose_name = "Chrono"
        verbose_name_plural = "Chronos"
        ordering = ["date", "gymnast"]

    gymnast = models.ForeignKey(
        Gymnast,
        verbose_name="gymnast",
        related_name="chronos",
        on_delete=models.CASCADE,
    )
    chrono_type = models.PositiveSmallIntegerField(
        choices=CHRONO_TYPE_CHOICE, verbose_name="Routine type"
    )
    score_type = models.PositiveSmallIntegerField(
        choices=SCORE_TYPE_CHOICE, verbose_name="Score type"
    )
    score = models.DecimalField(max_digits=5, decimal_places=3)
    tof = models.DecimalField(max_digits=5, decimal_places=3, blank=True, null=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return "%s - %s (%s - %s)" % (
            self.gymnast,
            self.score,
            self.date,
            self.chrono_type,
        )

    @staticmethod
    def compute_tof(value):
        tof = round((value * 13) / 15, 3) * 1000
        tof = tof - (tof % 5)
        return (tof / 1000)


class ChronoDetails(models.Model):
    """
    Class permettant d'enregistrer des détails d'un chrono : le temps de chaque saut.
    """
    class Meta:
        verbose_name = "Chronos Details"
        verbose_name_plural = "Chronos Details"
        ordering = ["chrono", "order"]
        unique_together = ["chrono", "order"]

    chrono = models.ForeignKey(Chrono, on_delete=models.CASCADE, related_name="details")
    order = models.SmallIntegerField()
    value = models.DecimalField(max_digits=5, decimal_places=3)


class Accident(Markdownizable, Seasonisable):
    """
    La classe `Accident` permet d'indiquer qu'un gymnaste a eu un accident, en liaison avec un
    skill ou non.
    """

    class Meta:
        verbose_name = "Accident"
        verbose_name_plural = "Accidents"
        # unique_together = ("gymnast", "skill", "date")

    gymnast = models.ForeignKey(
        Gymnast,
        verbose_name="Gymnast",
        related_name="accident",
        on_delete=models.CASCADE,
    )
    skill = models.ForeignKey(
        "objective.Skill",
        verbose_name="Skill",
        related_name="accident",
        on_delete=models.SET_NULL,
        default=None,
        blank=True,
        null=True,
    )
    nb_week_off = models.SmallIntegerField(
        blank=True, null=True, verbose_name="# week off"
    )
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return "%s(%s)" % (
            self.gymnast,
            self.date,
        )


class LearnedSkill(Seasonisable):
    """
    Représente la capacité d'un gymnaste à savori faire un skill de la ligne d'apprentissage.
    """

    class Meta:
        verbose_name = "Learned Skill"
        verbose_name_plural = "Learned Skills"
        unique_together = ("gymnast", "skill", "date", "learning_step")

    gymnast = models.ForeignKey(
        Gymnast,
        verbose_name="gymnast",
        related_name="known_skills",
        on_delete=models.CASCADE,
    )
    skill = models.ForeignKey(
        Skill,
        verbose_name="Skill",
        related_name="known_by",
        on_delete=models.CASCADE,
    )
    learning_step = models.PositiveSmallIntegerField(
        choices=LEARNING_STEP_CHOICES, verbose_name="Can do type"
    )
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)


class Plan(Seasonisable, Markdownizable):
    """
    Classe représentant les objectifs qu'un gymnaste devra savoir faire pour une date donnée.
    """

    class Meta:
        verbose_name = "Plan"
        verbose_name_plural = "Plans"
        ordering = ["date", "educative", "gymnast"]
        unique_together = ("gymnast", "educative")

    gymnast = models.ForeignKey(
        "people.Gymnast",
        verbose_name="Gymnast",
        related_name="todo",
        on_delete=models.CASCADE,
    )
    educative = models.ForeignKey(
        Educative,
        verbose_name="Educative",
        related_name="plan",
        on_delete=models.CASCADE,
    )
    learning_step = models.PositiveSmallIntegerField(
        choices=LEARNING_STEP_CHOICES, verbose_name="Can do type", default=3
    )
    is_done = models.BooleanField(default=0)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return "%s - %s - %s" % (
            self.gymnast,
            self.educative.short_label,
            self.date,
        )


class Point(models.Model):
    """
    Représente les points obtenus lors d'une compétition.
    """

    ROUTINETYPE_CHOICE = (
        (1, "Routine 1"),
        (2, "Routine 2"),
        (3, "Final") # Routine 3
    )

    gymnast = models.ForeignKey(
        Gymnast, on_delete=models.CASCADE, default=None, related_name="points"
    )
    event = models.ForeignKey(Event, on_delete=models.CASCADE, default=None)
    routine_type = models.PositiveSmallIntegerField(choices=ROUTINETYPE_CHOICE)
    point_execution = models.DecimalField(max_digits=5, decimal_places=3, verbose_name="Execution")
    point_difficulty = models.DecimalField(max_digits=3, decimal_places=1, verbose_name="Difficulty")
    point_time_of_flight = models.DecimalField(max_digits=5, decimal_places=3, verbose_name="ToF")
    point_horizontal_displacement = models.DecimalField(max_digits=4, decimal_places=3, verbose_name="HD")
    penality = models.DecimalField(max_digits=3, decimal_places=1)
    total = models.DecimalField(max_digits=6, decimal_places=3)
    created_at = models.DateTimeField(auto_now_add=True, verbose_name="Created")
    updated_at = models.DateTimeField(auto_now=True, verbose_name="Updated")

    def __str__(self):
        return "%s - %s" % (
            self.gymnast,
            self.total,
        )


class MindState(Markdownizable, Seasonisable):
    """
    Représente l'état d'esprit psychologique d'un gymnaste
    """

    gymnast = models.ForeignKey(
        Gymnast, on_delete=models.CASCADE, default=None, related_name="mindstate"
    )
    event = models.ForeignKey(
        Event,
        on_delete=models.SET_NULL,
        default=None,
        blank=True,
        null=True,
        related_name="mindstate",
    )
    score = models.PositiveSmallIntegerField(verbose_name="Score")
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return "%s - %s : %s" % (self.gymnast, self.date, self.score)


class GymnastHasRoutine(models.Model):
    """
    Classe représentant le lien entre les gymnastes et leurs séries.

    TODO: il y a un champ "date_begin" et un champ "date_end" --> peut hérité de Temporizable
    """

    class Meta:
        verbose_name = "Gymnast Has Routine"
        verbose_name_plural = "Gymnast Has Routines"
        # unique_together()

    gymnast = models.ForeignKey(
        Gymnast,
        verbose_name="Gymnast",
        related_name="has_routine",
        on_delete=models.CASCADE,
    )
    routine = models.ForeignKey(
        Routine,
        verbose_name="Routine",
        related_name="done_by_gymnast",
        on_delete=models.CASCADE,
    )
    routine_type = models.PositiveSmallIntegerField(
        choices=ROUTINE_CHOICE, verbose_name="Type", default="1"
    )
    date_begin = models.DateField(default=date.today, verbose_name="Date begin")
    date_end = models.DateField(verbose_name="Date end", null=True, blank=True)

    def __str__(self):
        return "%s - %s : %s" % (self.gymnast, self.routine_type, self.routine)


class NumberOfRoutineDone(Seasonisable):
    """
    Classe permettant de suivre le nombre de séries faites par le gymnaste.
    """

    class Meta:
        verbose_name = "Number of routine done"
        verbose_name_plural = "Number of routines done"

    gymnast = models.ForeignKey(
        Gymnast,
        verbose_name="Gymnast",
        related_name="number_of_routine_done",
        on_delete=models.CASCADE,
    )
    routine = models.ForeignKey(
        Routine,
        verbose_name="Routine",
        related_name="number_of_try",
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
    )
    routine_type = models.PositiveSmallIntegerField(
        choices=ROUTINE_CHOICE, verbose_name="Type", default="1"
    )
    number_of_try = models.PositiveSmallIntegerField(verbose_name="Number of try", default=0)
    number_of_successes = models.PositiveSmallIntegerField(
        verbose_name="number of successes", default=0
    )

    def __str__(self):
        return "%s - %s (%s) : %s | %s" % (
            self.gymnast,
            self.routine_type,
            self.routine,
            self.number_of_try,
            self.number_of_successes,
        )


class HeightWeight(Seasonisable):
    """
    Classe permettant de suivre le poids et la taille d'un gymnaste
    """

    class Meta:
        verbose_name = "Height & weight"
        verbose_name_plural = "Heights & weights"
        unique_together = ("gymnast", "date")

    gymnast = models.ForeignKey(
        Gymnast,
        verbose_name="Gymnast",
        related_name="height_weight",
        on_delete=models.CASCADE,
    )
    height = models.DecimalField(max_digits=4, decimal_places=1, verbose_name="Height")
    hips_height = models.DecimalField(
        max_digits=4,
        decimal_places=1,
        verbose_name="Hips height",
        null=True,
        blank=True
    )
    weight = models.DecimalField(max_digits=4, decimal_places=1, verbose_name="Weight")

    def __str__(self):
        return "%s : %s/%s - %s" % (self.gymnast, self.height, self.hips_height, self.weight)


class Note(Markdownizable, Seasonisable):
    """
    Notes relatives à un gymnaste
    """

    STATUS_CHOICES = (
        (0, "Draft"),
        (1, "Published"),
    )

    gymnast = models.ForeignKey(Gymnast, on_delete=models.CASCADE, related_name="remarks")
    coach = models.ForeignKey(User, on_delete=models.SET_NULL, blank=True, null=True, related_name="notes")
    status = models.PositiveSmallIntegerField(
        choices=STATUS_CHOICES, verbose_name="Routine type", default=0
    )
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return "%s - %s : %s" % (self.gymnast, self.created_at, self.coach)