from django.db import models
from django.contrib.postgres.fields import JSONField
import uuid


class UserData(models.Model):
    user_id = models.CharField(max_length=100, unique=True)
    expenses = models.JSONField(default=dict, blank=True)
    salary = models.JSONField(default=dict, blank=True)
    category = models.JSONField(default=dict, blank=True)
    user_data = models.JSONField(default=dict, blank=True)
    has_music_url_access = models.BooleanField(default=False)
    has_ai_access = models.BooleanField(default=False)
    data_backup_key = models.CharField(max_length=100, unique=True, blank=True)

    def __str__(self):
        return f"Data for User {self.user_id}"


class AIKey(models.Model):
    aikey = models.CharField(max_length=100, unique=True)
    isActive = models.BooleanField(default=False)
    keySource = models.CharField(max_length=100, unique=True)

    def __str__(self):
        return f"Data for AIKey {self.keySource}"


class AppVersion(models.Model):
    version = models.CharField(max_length=20)
    release_notes = models.TextField(null=True, blank=True)
    is_force_update = models.BooleanField(default=False)
    created_at = models.DateTimeField(auto_now_add=True)
    isActive = models.BooleanField(default=False)

    class Meta:
        db_table = "app_version"

    def save(self, *args, **kwargs):
        # If this version is active → deactivate others
        if self.isActive:
            AppVersion.objects.filter(isActive=True).exclude(id=self.id).update(
                isActive=False
            )

        super().save(*args, **kwargs)

    def __str__(self):
        return self.version


class Contact(models.Model):
    name = models.CharField(max_length=20)
    email = models.EmailField(max_length=50)
    message = models.TextField(max_length=500)

    def __str__(self):
        return self.name


class ExpenseLog(models.Model):
    text = models.CharField(max_length=500)
    amount = models.FloatField(null=True, blank=True)
    predicted_category = models.CharField(max_length=100)
    confidence_score = models.FloatField()
    created_at = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return f"{self.predicted_category} (${self.amount}): {self.text[:30]}"