from __future__ import annotations

import os
import uuid

from django.contrib.auth.models import User
from django.db import models
from django.urls import reverse
from jsonfield import JSONField

from centralisedFileSystem.filetypes import ALLOWED_FILETYPES
from MNF import settings
# from ScriptPad2.models import BeatNotes
# from ScriptPad2.models import ScreenPlay as ScreenPlay2


class ScreenPlay(models.Model):

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="screenplays", editable=False)
    author = models.CharField(max_length=100)
    name = models.CharField(max_length=200, blank=False, null=False)
    created_on = models.DateTimeField(auto_now_add=True)
    version_count = models.IntegerField(default=0, editable=False)

    class Meta:
        get_latest_by = "created_on"
        # unique_together = ("user", "name")

    def __str__(self) -> str:
        return str(self.name)

    def get_absolute_url(self) -> str:
        return reverse("screenplay_detail", kwargs={"pk": self.pk})

    def next_version(self) -> int:
        self.version_count = self.version_count + 1
        self.save()
        return self.version_count


class Script(models.Model):

    LANGUAGES = tuple((k, v) for k, v in settings.languages.items())

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    screenplay = models.ForeignKey(ScreenPlay, on_delete=models.CASCADE, related_name="scripts")
    created_on = models.DateTimeField(auto_now_add=True)
    modified_on = models.DateTimeField(auto_now=True)
    version = models.IntegerField(editable=False, null=True)
    language = models.CharField(max_length=100, default="", choices=LANGUAGES)
    interval_at = models.IntegerField(default=0, null=True,blank=True)
    lock_status = models.BooleanField(default=False, null=True,blank=True)
    no_of_pages = models.IntegerField(default=0, null=True,blank=True)
    
    # user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="screenplays", editable=False)
    
    class Meta:
        get_latest_by = "created_on"

    def __str__(self) -> str:
        return f"{self.screenplay.name} -V{self.version}"

    def get_absolute_url(self) -> str:
        return reverse("script_detail", kwargs={"pk": self.pk})


def generate_upload_folder(instance : File, filename : str) -> str:
    script_folder = os.path.join(settings.MEDIA_ROOT,"scripts_folder", str(instance.script.id))
    os.makedirs(script_folder, exist_ok=True)
    filename = f"{instance.id}.{filename.rsplit('.', 1)[1]}"
    return "scripts_folder/" + str(instance.script.id) + "/" + filename
    

def generate_gpt_text_folder(instance , filename : str) -> str:
    script_folder = os.path.join(settings.MEDIA_ROOT,"GPT_text_folder", str(instance.script.id))
    os.makedirs(script_folder, exist_ok=True)

    filename = f"{instance.id}.{filename.rsplit('.', 1)[1]}"

    return os.path.join(script_folder, filename)


class File(models.Model):

    FILE_CHOICES = tuple(((k, k) for k in ALLOWED_FILETYPES))

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    script = models.ForeignKey(Script, on_delete=models.CASCADE, related_name="scripts_files")
    content_type = models.CharField(max_length=200, editable=False)
    file = models.FileField(upload_to=generate_upload_folder, blank=True)
    type = models.CharField(max_length=50, choices=FILE_CHOICES)
    created_on = models.DateTimeField(auto_now_add=True)
    modified_on = models.DateTimeField(auto_now=True)
    modification_id = models.IntegerField(default=0, editable=False)
    skip_post_save = models.BooleanField(default = False,null=True,blank=True)

    class Meta:
        unique_together = ("script", "type")
        get_latest_by = "created_on"

    def __str__(self) -> str:
        return f"{self.script}_{self.type}_{self.modification_id}"
    
# class BeatSheet(models.Model):
#     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
#     script = models.ForeignKey("ScreenPlay2", on_delete=models.CASCADE, related_name="beat_script",null=True,blank=True)
#     scene_number = models.IntegerField(default=0)
#     beat = models.CharField(max_length=250,null=True,blank=True)
#     # beat_note = models.ForeignKey(BeatNotes,null=True,blank=True, on_delete=models.CASCADE)
#     beat_note = models.ManyToManyField("BeatNotes", blank=True)
#     created_on = models.DateTimeField(auto_now_add=True)
#     modified_on = models.DateTimeField(auto_now=True)
#     had_used_gpt = models.BooleanField(default=False)
#     gpt_response = models.TextField(null=True,blank=True)
#     text_file_path = models.FileField(upload_to = generate_gpt_text_folder, blank = True, null=True)
#     has_notes = models.BooleanField(default = False,null=True,blank=True)
#     archeive = models.BooleanField(default = False,null=True,blank=True)
#     is_paid = models.BooleanField(default=False)
#     is_subsequent = models.BooleanField(default=False)
#     beat_note_id = models.UUIDField(default=False,null=True,blank = True)
#     gptresp = models.TextField(null=True,blank=True)
    
#     def __str__(self) -> str :
#         return f"{self.script} {self.scene_number}"