chat qo'shildi

config/asgi.py

@@ -2,11 +2,26 @@ import os
 
 from django.core.asgi import get_asgi_application
 
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "config.settings.local")
+
 asgi_application = get_asgi_application()
-from config.env import env  # noqa
 
-os.environ.setdefault("DJANGO_SETTINGS_MODULE", env("DJANGO_SETTINGS_MODULE"))
+from channels.routing import ProtocolTypeRouter, URLRouter  # noqa
+from django.urls import re_path  # noqa
 
+from core.apps.chat.consumers import ChatConsumer  # noqa
+from core.apps.chat.middlewares.auth import JWTAuthMiddlewareStack  # noqa
 
-application = asgi_application
+websocket_urlpatterns = [
+    re_path(
+        r"^ws/chat/room/(?P<room_id>\d+)/$",
+        ChatConsumer.as_asgi(),
+    ),
+]
 
+application = ProtocolTypeRouter({
+    "http": asgi_application,
+    "websocket": JWTAuthMiddlewareStack(
+        URLRouter(websocket_urlpatterns)
+    ),
+})

config/conf/modules.py

@@ -1 +1 @@
-MODULES = ["core.apps.shared", "core.apps.evaluation", "core.apps.payment"]
+MODULES = ["core.apps.shared", "core.apps.evaluation", "core.apps.payment", "core.apps.chat"]

config/conf/navigation.py

@@ -128,6 +128,17 @@ PAGES = [
             },
         ],
     },
+    {
+        "title": _("Chat"),
+        "separator": True,
+        "items": [
+            {
+                "title": _("Chat xabarlari"),
+                "icon": "chat",
+                "link": reverse_lazy("admin:chat_chatmessagemodel_changelist"),
+            },
+        ],
+    },
     {
         "title": _("Ma'lumotnomalari"),
         "separator": True,

config/settings/common.py

@@ -148,8 +148,18 @@ AUTH_USER_MODEL = "accounts.User"
 CELERY_BROKER_URL = env("REDIS_URL")
 CELERY_RESULT_BACKEND = env("REDIS_URL")
 
+CHANNEL_LAYERS = {
+    "default": {
+        "BACKEND": "channels_redis.core.RedisChannelLayer",
+        "CONFIG": {
+            "hosts": [env("REDIS_URL")],
+        },
+    },
+}
+
 ALLOWED_HOSTS += env("ALLOWED_HOSTS").split(",")
 CSRF_TRUSTED_ORIGINS = env("CSRF_TRUSTED_ORIGINS").split(",")
+SITE_URL = env.str("SITE_URL", default="http://localhost:8055")
 
 
 MODELTRANSLATION_LANGUAGES = ("uz", "ru", "en")

config/urls.py

@@ -22,6 +22,7 @@ urlpatterns = [
     path("api/", include("core.apps.shared.urls")),
     path("api/v1/", include("core.apps.evaluation.urls")),
     path("api/v1/", include("core.apps.payment.urls")),
+    path("api/v1/", include("core.apps.chat.urls")),
 ]
 urlpatterns += [
     path("admin/", admin.site.urls),

core/apps/chat/admin/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/admin/chat.py

@@ -0,0 +1,86 @@
+from django.contrib import admin
+from django.utils.translation import gettext_lazy as _
+from unfold.admin import ModelAdmin
+
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+
+
+@admin.register(ChatmessageModel)
+class ChatmessageAdmin(ModelAdmin):
+    list_display = (
+        "id",
+        "room",
+        "message_type",
+        "sender",
+        "short_text",
+        "is_read",
+        "created_at",
+    )
+    list_filter = ("message_type", "is_read", "created_at")
+    search_fields = (
+        "text",
+        "sender__phone",
+        "sender__first_name",
+        "sender__last_name",
+    )
+    readonly_fields = ("created_at",)
+    autocomplete_fields = ("sender",)
+    ordering = ("-created_at",)
+    fieldsets = (
+        (
+            _("Xabar"),
+            {
+                "fields": ("room", "sender", "message_type", "text", "file", "is_read"),
+            },
+        ),
+        (
+            _("Tizim"),
+            {
+                "classes": ("collapse",),
+                "fields": ("created_at",),
+            },
+        ),
+    )
+
+    def has_add_permission(self, request):
+        return False
+
+    def has_change_permission(self, request, obj=None):
+        return False
+
+    @admin.display(description=_("Xabar"))
+    def short_text(self, obj):
+        if not obj.text:
+            return f"[{obj.message_type}]"
+        return obj.text[:60] + "..." if len(obj.text) > 60 else obj.text
+
+
+@admin.register(ChatroomModel)
+class ChatroomAdmin(ModelAdmin):
+    list_display = (
+        "id",
+        "__str__",
+        "type",
+        "auto_evaluation",
+        "created_at",
+    )
+    list_filter = ("type",)
+    search_fields = ("auto_evaluation__id",)
+    autocomplete_fields = ("auto_evaluation",)
+    filter_horizontal = ("members",)
+    readonly_fields = ("created_at", "updated_at")
+    fieldsets = (
+        (
+            _("Xona"),
+            {
+                "fields": ("type", "auto_evaluation", "members"),
+            },
+        ),
+        (
+            _("Tizim"),
+            {
+                "classes": ("collapse",),
+                "fields": ("created_at", "updated_at"),
+            },
+        ),
+    )

core/apps/chat/apps.py

@@ -0,0 +1,9 @@
+from django.apps import AppConfig
+
+
+class ModuleConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "core.apps.chat"
+
+    def ready(self):
+        import core.apps.chat.signals  # noqa

core/apps/chat/choices/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/choices/chat.py

@@ -0,0 +1,15 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+
+class RoomType(models.TextChoices):
+    AUTO_EVALUATION = "auto_evaluation", _("AutoEvaluation xonasi")
+    DIRECT = "direct", _("To'g'ridan-to'g'ri")
+
+
+class MessageType(models.TextChoices):
+    TEXT = "text", _("Matn")
+    IMAGE = "image", _("Rasm")
+    VIDEO = "video", _("Video")
+    VOICE = "voice", _("Ovoz")
+    FILE = "file", _("Fayl")

core/apps/chat/consumers/__init__.py

@@ -0,0 +1 @@
+from .chat import ChatConsumer  # noqa

core/apps/chat/consumers/chat.py

@@ -0,0 +1,105 @@
+import json
+
+from channels.db import database_sync_to_async
+from channels.generic.websocket import AsyncWebsocketConsumer
+from django.contrib.auth.models import AnonymousUser
+
+
+class ChatConsumer(AsyncWebsocketConsumer):
+    """
+    Xona asosidagi chat consumer.
+    Ulanish: ws://host/ws/chat/room/{room_id}/?token=<jwt>
+
+    Matn xabari yuborish:
+        { "message_type": "text", "text": "Salom" }
+
+    Fayl xabari (oldin REST orqali yuklab, keyin URL yuborish):
+        { "message_type": "image", "file_url": "https://...", "text": "caption (ixtiyoriy)" }
+    """
+
+    async def connect(self):
+        user = self.scope.get("user")
+        if not user or isinstance(user, AnonymousUser):
+            await self.close(code=4001)
+            return
+
+        self.room_id = self.scope["url_route"]["kwargs"]["room_id"]
+        self.room_group = f"chat_room_{self.room_id}"
+
+        await self.channel_layer.group_add(self.room_group, self.channel_name)
+        await self.accept()
+
+    async def disconnect(self, close_code):
+        if hasattr(self, "room_group"):
+            await self.channel_layer.group_discard(self.room_group, self.channel_name)
+
+    async def receive(self, text_data):
+        user = self.scope.get("user")
+        if not user or isinstance(user, AnonymousUser):
+            await self.close(code=4001)
+            return
+
+        try:
+            data = json.loads(text_data)
+        except (json.JSONDecodeError, ValueError):
+            await self.send(text_data=json.dumps({"error": "Noto'g'ri format."}))
+            return
+
+        message_type = data.get("message_type", "text")
+        text = (data.get("text") or "").strip()
+
+        # Matn xabari uchun text majburiy
+        if message_type == "text" and not text:
+            await self.send(text_data=json.dumps({"error": "Matn bo'sh bo'lishi mumkin emas."}))
+            return
+
+        # WS orqali faqat matn + caption saqlanadi.
+        # Fayl yuklash uchun REST /chat/messages/ POST ishlatiladi.
+        if message_type != "text":
+            await self.send(
+                text_data=json.dumps(
+                    {"error": "Fayl xabarlarni yuklash uchun REST API dan foydalaning."}
+                )
+            )
+            return
+
+        # DB ga saqlash — post_save signal WS ga broadcast qiladi
+        await self._save_message(user, text)
+
+    async def chat_message(self, event):
+        await self.send(
+            text_data=json.dumps(
+                {
+                    "id": event["id"],
+                    "message_type": event["message_type"],
+                    "text": event["text"],
+                    "file_url": event["file_url"],
+                    "sender": event["sender"],
+                    "created_at": event["created_at"],
+                }
+            )
+        )
+
+    @database_sync_to_async
+    def _save_message(self, user, text):
+        from core.apps.chat.models import ChatmessageModel
+
+        msg = ChatmessageModel.objects.create(
+            room_id=self.room_id,
+            sender=user,
+            message_type="text",
+            text=text,
+        )
+        full_name = user.get_full_name().strip() or str(user.phone)
+        return {
+            "id": msg.id,
+            "message_type": msg.message_type,
+            "text": msg.text,
+            "file_url": None,
+            "sender": {
+                "id": user.id,
+                "full_name": full_name,
+                "role": user.role,
+            },
+            "created_at": msg.created_at.isoformat(),
+        }

core/apps/chat/filters/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/filters/chat.py

@@ -0,0 +1,33 @@
+from django_filters import rest_framework as filters
+
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+
+
+class ChatmessageFilter(filters.FilterSet):
+    room = filters.NumberFilter(field_name="room_id", lookup_expr="exact")
+    message_type = filters.CharFilter(field_name="message_type", lookup_expr="exact")
+    is_read = filters.BooleanFilter(field_name="is_read")
+    created_from = filters.DateTimeFilter(field_name="created_at", lookup_expr="gte")
+    created_to = filters.DateTimeFilter(field_name="created_at", lookup_expr="lte")
+
+    class Meta:
+        model = ChatmessageModel
+        fields = [
+            "room",
+            "message_type",
+            "is_read",
+            "created_from",
+            "created_to",
+        ]
+
+
+class ChatroomFilter(filters.FilterSet):
+    type = filters.CharFilter(field_name="type", lookup_expr="exact")
+    auto_evaluation = filters.NumberFilter(field_name="auto_evaluation_id", lookup_expr="exact")
+
+    class Meta:
+        model = ChatroomModel
+        fields = [
+            "type",
+            "auto_evaluation",
+        ]

core/apps/chat/forms/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/forms/chat.py

@@ -0,0 +1,17 @@
+from django import forms
+
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+
+
+class ChatmessageForm(forms.ModelForm):
+
+    class Meta:
+        model = ChatmessageModel
+        fields = "__all__"
+
+
+class ChatroomForm(forms.ModelForm):
+
+    class Meta:
+        model = ChatroomModel
+        fields = "__all__"

core/apps/chat/middlewares/__init__.py

@@ -0,0 +1 @@
+from .auth import * # noqa

core/apps/chat/middlewares/auth.py

@@ -0,0 +1,70 @@
+import traceback
+from urllib.parse import parse_qs
+
+from channels.auth import AuthMiddlewareStack
+from channels.db import database_sync_to_async
+from django.conf import settings
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import AnonymousUser
+from django.db import close_old_connections
+from jwt import DecodeError, ExpiredSignatureError, InvalidSignatureError
+from jwt import decode as jwt_decode
+
+User = get_user_model()
+
+
+class JWTAuthMiddleware:
+    def __init__(self, app):
+        self.app = app
+
+    async def __call__(self, scope, receive, send):
+        close_old_connections()
+        try:
+            if jwt_token_list := parse_qs(scope["query_string"].decode("utf8")).get(
+                "token", None
+            ):
+                jwt_token = jwt_token_list[0]
+                jwt_payload = self.get_payload(jwt_token)
+                user_credentials = self.get_user_credentials(jwt_payload)
+                user = await self.get_logged_in_user(user_credentials)
+                scope["user"] = user
+            else:
+                scope["user"] = AnonymousUser()
+        except (
+            InvalidSignatureError,
+            KeyError,
+            ExpiredSignatureError,
+            DecodeError,
+        ):
+            traceback.print_exc()
+        except Exception as e:
+            print(e)
+            scope["user"] = AnonymousUser()
+        return await self.app(scope, receive, send)
+
+    def get_payload(self, jwt_token):
+        payload = jwt_decode(jwt_token, settings.SECRET_KEY, algorithms=["HS256"])
+        return payload
+
+    def get_user_credentials(self, payload):
+        """
+        method to get user credentials from jwt token payload.
+        defaults to user id.
+        """
+        user_id = payload["user_id"]
+        return user_id
+
+    async def get_logged_in_user(self, user_id):
+        user = await self.get_user(user_id)
+        return user
+
+    @database_sync_to_async
+    def get_user(self, user_id):
+        try:
+            return User.objects.get(id=user_id)
+        except User.DoesNotExist:
+            return AnonymousUser()
+
+
+def JWTAuthMiddlewareStack(app):
+    return JWTAuthMiddleware(AuthMiddlewareStack(app))

core/apps/chat/migrations/0001_initial_chat_message.py

@@ -0,0 +1,36 @@
+# Generated by Django 5.2.7 on 2026-04-02 14:22
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('evaluation', '0026_alter_autoevaluationmodel_form_ownership_and_more'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ChatmessageModel',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('text', models.TextField(verbose_name='text')),
+                ('is_read', models.BooleanField(db_index=True, default=False, verbose_name='is read')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='created at')),
+                ('auto_evaluation', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='chat_messages', to='evaluation.autoevaluationmodel', verbose_name='auto evaluation')),
+                ('sender', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='chat_messages', to=settings.AUTH_USER_MODEL, verbose_name='sender')),
+            ],
+            options={
+                'verbose_name': 'Chat Message',
+                'verbose_name_plural': 'Chat Messages',
+                'db_table': 'ChatMessage',
+                'ordering': ['created_at'],
+                'indexes': [models.Index(fields=['auto_evaluation_id', 'created_at'], name='chat_eval_date_idx'), models.Index(fields=['auto_evaluation_id', 'is_read'], name='chat_eval_read_idx')],
+            },
+        ),
+    ]

core/apps/chat/migrations/0002_chatroom_and_message_media.py

@@ -0,0 +1,152 @@
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import core.apps.chat.models.chat
+
+
+def delete_old_messages(apps, schema_editor):
+    """Eski xabarlarni o'chirish — room FK bilan mos kelmaydi."""
+    ChatmessageModel = apps.get_model("chat", "ChatmessageModel")
+    ChatmessageModel.objects.all().delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("chat", "0001_initial_chat_message"),
+        ("evaluation", "0026_alter_autoevaluationmodel_form_ownership_and_more"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        # 1. ChatroomModel yaratish
+        migrations.CreateModel(
+            name="ChatroomModel",
+            fields=[
+                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+                ("updated_at", models.DateTimeField(auto_now=True)),
+                (
+                    "type",
+                    models.CharField(
+                        choices=[
+                            ("auto_evaluation", "AutoEvaluation xonasi"),
+                            ("direct", "To\u2018g\u2018ridan-to\u2018g\u2018ri"),
+                        ],
+                        db_index=True,
+                        default="auto_evaluation",
+                        max_length=20,
+                        verbose_name="type",
+                    ),
+                ),
+                (
+                    "auto_evaluation",
+                    models.OneToOneField(
+                        blank=True,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="chat_room",
+                        to="evaluation.autoevaluationmodel",
+                        verbose_name="auto evaluation",
+                    ),
+                ),
+                (
+                    "members",
+                    models.ManyToManyField(
+                        blank=True,
+                        related_name="chat_rooms",
+                        to=settings.AUTH_USER_MODEL,
+                        verbose_name="members",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Chat Xona",
+                "verbose_name_plural": "Chat Xonalar",
+                "db_table": "ChatRoom",
+            },
+        ),
+        # 2. Eski xabarlarni o'chirish (room FKsiz migratsiya mumkin emas)
+        migrations.RunPython(delete_old_messages, migrations.RunPython.noop),
+        # 3. Eski indexlarni o'chirish
+        migrations.RemoveIndex(
+            model_name="chatmessagemodel",
+            name="chat_eval_date_idx",
+        ),
+        migrations.RemoveIndex(
+            model_name="chatmessagemodel",
+            name="chat_eval_read_idx",
+        ),
+        # 4. auto_evaluation FK o'chirish
+        migrations.RemoveField(
+            model_name="chatmessagemodel",
+            name="auto_evaluation",
+        ),
+        # 5. room FK qo'shish
+        migrations.AddField(
+            model_name="chatmessagemodel",
+            name="room",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="messages",
+                to="chat.chatroommodel",
+                verbose_name="room",
+                null=True,
+            ),
+        ),
+        # 6. room ni non-null qilish
+        migrations.AlterField(
+            model_name="chatmessagemodel",
+            name="room",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="messages",
+                to="chat.chatroommodel",
+                verbose_name="room",
+            ),
+        ),
+        # 7. message_type qo'shish
+        migrations.AddField(
+            model_name="chatmessagemodel",
+            name="message_type",
+            field=models.CharField(
+                choices=[
+                    ("text", "Matn"),
+                    ("image", "Rasm"),
+                    ("video", "Video"),
+                    ("voice", "Ovoz"),
+                    ("file", "Fayl"),
+                ],
+                db_index=True,
+                default="text",
+                max_length=10,
+                verbose_name="message type",
+            ),
+        ),
+        # 8. text ni nullable qilish
+        migrations.AlterField(
+            model_name="chatmessagemodel",
+            name="text",
+            field=models.TextField(blank=True, null=True, verbose_name="text"),
+        ),
+        # 9. file field qo'shish
+        migrations.AddField(
+            model_name="chatmessagemodel",
+            name="file",
+            field=models.FileField(
+                blank=True,
+                null=True,
+                upload_to=core.apps.chat.models.chat.chat_file_upload_path,
+                verbose_name="file",
+            ),
+        ),
+        # 10. Yangi indexlar
+        migrations.AddIndex(
+            model_name="chatmessagemodel",
+            index=models.Index(fields=["room_id", "created_at"], name="chat_room_date_idx"),
+        ),
+        migrations.AddIndex(
+            model_name="chatmessagemodel",
+            index=models.Index(fields=["room_id", "is_read"], name="chat_room_read_idx"),
+        ),
+    ]

core/apps/chat/models/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/models/chat.py

@@ -0,0 +1,110 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+from django_core.models import AbstractBaseModel
+from model_bakery import baker
+
+from core.apps.chat.choices.chat import MessageType, RoomType
+
+
+def chat_file_upload_path(instance, filename):
+    return f"chat/{instance.message_type}/{filename}"
+
+
+class ChatroomModel(AbstractBaseModel):
+    type = models.CharField(
+        verbose_name=_("type"),
+        max_length=20,
+        choices=RoomType.choices,
+        default=RoomType.AUTO_EVALUATION,
+        db_index=True,
+    )
+    auto_evaluation = models.OneToOneField(
+        "evaluation.AutoEvaluationModel",
+        on_delete=models.CASCADE,
+        null=True,
+        blank=True,
+        related_name="chat_room",
+        verbose_name=_("auto evaluation"),
+    )
+    members = models.ManyToManyField(
+        "accounts.User",
+        blank=True,
+        related_name="chat_rooms",
+        verbose_name=_("members"),
+    )
+
+    def __str__(self):
+        if self.type == RoomType.AUTO_EVALUATION and self.auto_evaluation_id:
+            return f"AutoEval #{self.auto_evaluation_id} xonasi"
+        return f"Direct xona #{self.pk}"
+
+    @classmethod
+    def _baker(cls):
+        return baker.make(cls)
+
+    class Meta:
+        db_table = "ChatRoom"
+        verbose_name = _("Chat Xona")
+        verbose_name_plural = _("Chat Xonalar")
+
+
+class ChatmessageModel(models.Model):
+    room = models.ForeignKey(
+        ChatroomModel,
+        on_delete=models.CASCADE,
+        related_name="messages",
+        verbose_name=_("room"),
+    )
+    sender = models.ForeignKey(
+        "accounts.User",
+        on_delete=models.SET_NULL,
+        null=True,
+        related_name="chat_messages",
+        verbose_name=_("sender"),
+    )
+    message_type = models.CharField(
+        verbose_name=_("message type"),
+        max_length=10,
+        choices=MessageType.choices,
+        default=MessageType.TEXT,
+        db_index=True,
+    )
+    text = models.TextField(verbose_name=_("text"), null=True, blank=True)
+    file = models.FileField(
+        verbose_name=_("file"),
+        upload_to=chat_file_upload_path,
+        null=True,
+        blank=True,
+    )
+    is_read = models.BooleanField(
+        verbose_name=_("is read"),
+        default=False,
+        db_index=True,
+    )
+    created_at = models.DateTimeField(
+        verbose_name=_("created at"),
+        auto_now_add=True,
+    )
+
+    def __str__(self):
+        return f"#{self.pk} — {self.sender}"
+
+    @classmethod
+    def _baker(cls):
+        return baker.make(cls)
+
+    class Meta:
+        db_table = "ChatMessage"
+        verbose_name = _("Chat Xabar")
+        verbose_name_plural = _("Chat Xabarlar")
+        ordering = ["created_at"]
+        indexes = [
+            models.Index(
+                fields=["room_id", "created_at"],
+                name="chat_room_date_idx",
+            ),
+            models.Index(
+                fields=["room_id", "is_read"],
+                name="chat_room_read_idx",
+            ),
+        ]

core/apps/chat/permissions/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/permissions/chat.py

@@ -0,0 +1,23 @@
+from rest_framework import permissions
+
+
+class ChatmessagePermission(permissions.BasePermission):
+
+    def __init__(self) -> None: ...
+
+    def __call__(self, *args, **kwargs):
+        return self
+
+    def has_permission(self, request, view):
+        return True
+
+
+class ChatroomPermission(permissions.BasePermission):
+
+    def __init__(self) -> None: ...
+
+    def __call__(self, *args, **kwargs):
+        return self
+
+    def has_permission(self, request, view):
+        return True

core/apps/chat/serializers/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/serializers/chat/ChatMessage.py

@@ -0,0 +1,75 @@
+from rest_framework import serializers
+
+from core.apps.chat.models import ChatmessageModel
+
+
+class BaseChatmessageSerializer(serializers.ModelSerializer):
+    sender = serializers.SerializerMethodField()
+    file_url = serializers.SerializerMethodField()
+
+    def get_sender(self, obj):
+        if obj.sender is None:
+            return None
+        full_name = obj.sender.get_full_name().strip()
+        if not full_name:
+            full_name = str(obj.sender.phone)
+        return {
+            "id": obj.sender.id,
+            "full_name": full_name,
+            "role": obj.sender.role,
+        }
+
+    def get_file_url(self, obj):
+        if not obj.file:
+            return None
+        request = self.context.get("request")
+        if request:
+            return request.build_absolute_uri(obj.file.url)
+        return obj.file.url
+
+    class Meta:
+        model = ChatmessageModel
+        fields = [
+            "id",
+            "room",
+            "sender",
+            "message_type",
+            "text",
+            "file_url",
+            "is_read",
+            "created_at",
+        ]
+
+
+class ListChatmessageSerializer(BaseChatmessageSerializer):
+    class Meta(BaseChatmessageSerializer.Meta): ...
+
+
+class RetrieveChatmessageSerializer(BaseChatmessageSerializer):
+    class Meta(BaseChatmessageSerializer.Meta): ...
+
+
+class CreateChatmessageSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ChatmessageModel
+        fields = [
+            "room",
+            "message_type",
+            "text",
+            "file",
+        ]
+
+    def validate(self, attrs):
+        message_type = attrs.get("message_type", "text")
+        text = attrs.get("text", "").strip() if attrs.get("text") else ""
+        file = attrs.get("file")
+
+        if message_type == "text" and not text:
+            raise serializers.ValidationError({"text": "Matn xabari uchun text majburiy."})
+        if message_type != "text" and not file:
+            raise serializers.ValidationError({"file": f"{message_type} xabari uchun fayl majburiy."})
+        return attrs
+
+    def create(self, validated_data):
+        validated_data["sender"] = self.context["request"].user
+        return super().create(validated_data)

core/apps/chat/serializers/chat/ChatRoom.py

@@ -0,0 +1,68 @@
+from rest_framework import serializers
+
+from core.apps.chat.models import ChatroomModel
+
+
+class MemberSerializer(serializers.Serializer):
+    id = serializers.IntegerField()
+    full_name = serializers.SerializerMethodField()
+    role = serializers.CharField()
+
+    def get_full_name(self, obj):
+        name = obj.get_full_name().strip()
+        return name if name else str(obj.phone)
+
+
+class BaseChatroomSerializer(serializers.ModelSerializer):
+    members = serializers.SerializerMethodField()
+
+    def get_members(self, obj):
+        return [
+            {
+                "id": u.id,
+                "full_name": (u.get_full_name().strip() or str(u.phone)),
+                "role": u.role,
+            }
+            for u in obj.members.only("id", "first_name", "last_name", "phone", "role")
+        ]
+
+    class Meta:
+        model = ChatroomModel
+        fields = [
+            "id",
+            "type",
+            "auto_evaluation",
+            "members",
+            "created_at",
+        ]
+
+
+class ListChatroomSerializer(BaseChatroomSerializer):
+    class Meta(BaseChatroomSerializer.Meta): ...
+
+
+class RetrieveChatroomSerializer(BaseChatroomSerializer):
+    class Meta(BaseChatroomSerializer.Meta): ...
+
+
+class CreateChatroomSerializer(serializers.ModelSerializer):
+    type = serializers.ChoiceField(
+        choices=["auto_evaluation", "direct"],
+        required=True,
+    )
+
+    class Meta:
+        model = ChatroomModel
+        fields = [
+            "type",
+            "auto_evaluation",
+            "members",
+        ]
+
+    def validate(self, attrs):
+        room_type = attrs.get("type")
+        if room_type == "auto_evaluation" and not attrs.get("auto_evaluation"):
+            raise serializers.ValidationError(
+                {"auto_evaluation": "auto_evaluation turi uchun AutoEvaluation majburiy."}
+            )
+        return attrs

core/apps/chat/serializers/chat/__init__.py

@@ -0,0 +1,2 @@
+from .ChatMessage import *  # noqa
+from .ChatRoom import *  # noqa

core/apps/chat/signals/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/signals/chat.py

@@ -0,0 +1,55 @@
+from asgiref.sync import async_to_sync
+from channels.layers import get_channel_layer
+from django.conf import settings
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+
+
+@receiver(post_save, sender=ChatmessageModel)
+def broadcast_new_message(sender, instance, created, **kwargs):
+    """Yangi xabar saqlanganda xonadagi barcha WS ulanishlariga yuboradi."""
+    if not created:
+        return
+
+    channel_layer = get_channel_layer()
+    if channel_layer is None:
+        return
+
+    sender_obj = instance.sender
+    if sender_obj:
+        full_name = sender_obj.get_full_name().strip() or str(sender_obj.phone)
+        sender_data = {
+            "id": sender_obj.id,
+            "full_name": full_name,
+            "role": sender_obj.role,
+        }
+    else:
+        sender_data = None
+
+    site_url = getattr(settings, "SITE_URL", "").rstrip("/")
+    file_url = (site_url + instance.file.url) if instance.file else None
+
+    async_to_sync(channel_layer.group_send)(
+        f"chat_room_{instance.room_id}",
+        {
+            "type": "chat_message",
+            "id": instance.id,
+            "message_type": instance.message_type,
+            "text": instance.text,
+            "file_url": file_url,
+            "sender": sender_data,
+            "created_at": instance.created_at.isoformat(),
+        },
+    )
+
+
+@receiver(post_save, sender="evaluation.AutoEvaluationModel")
+def auto_create_chatroom(sender, instance, created, **kwargs):
+    """AutoEvaluation yaratilganda avtomatik chat xonasi ochiladi."""
+    if created:
+        ChatroomModel.objects.get_or_create(
+            auto_evaluation=instance,
+            defaults={"type": "auto_evaluation"},
+        )

core/apps/chat/tests/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/tests/chat/__init__.py

@@ -0,0 +1,2 @@
+from .test_ChatMessage import *  # noqa
+from .test_ChatRoom import *  # noqa

core/apps/chat/tests/chat/test_ChatMessage.py

@@ -0,0 +1,101 @@
+import pytest
+from django.urls import reverse
+from rest_framework.test import APIClient
+
+from core.apps.chat.models import ChatmessageModel
+
+
+@pytest.fixture
+def instance(db):
+    return ChatmessageModel._baker()
+
+
+@pytest.fixture
+def api_client(instance):
+    client = APIClient()
+    ##client.force_authenticate(user=instance.user)
+    return client, instance
+
+
+@pytest.fixture
+def data(api_client):
+    client, instance = api_client
+    return (
+        {
+            "list": reverse("ChatMessage-list"),
+            "retrieve": reverse("ChatMessage-detail", kwargs={"pk": instance.pk}),
+            "retrieve-not-found": reverse("ChatMessage-detail", kwargs={"pk": 1000}),
+        },
+        client,
+        instance,
+    )
+
+
+@pytest.mark.django_db
+def test_list(data):
+    urls, client, _ = data
+    response = client.get(urls["list"])
+    data_resp = response.json()
+    assert response.status_code == 200
+    assert data_resp["status"] is True
+
+
+@pytest.mark.django_db
+def test_retrieve(data):
+    urls, client, _ = data
+    response = client.get(urls["retrieve"])
+    data_resp = response.json()
+    assert response.status_code == 200
+    assert data_resp["status"] is True
+
+
+@pytest.mark.django_db
+def test_retrieve_not_found(data):
+    urls, client, _ = data
+    response = client.get(urls["retrieve-not-found"])
+    data_resp = response.json()
+    assert response.status_code == 404
+    assert data_resp["status"] is False
+
+
+# @pytest.mark.django_db
+# def test_create(data):
+#    urls, client, _ = data
+#    response = client.post(urls["list"], data={"name": "test"})
+#    assert response.json()["status"] is True
+#    assert response.status_code == 201
+
+
+# @pytest.mark.django_db
+# def test_update(data):
+#    urls, client, _ = data
+#    response = client.patch(urls["retrieve"], data={"name": "updated"})
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#
+#    # verify updated value
+#    response = client.get(urls["retrieve"])
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#    assert response.json()["data"]["name"] == "updated"
+
+
+# @pytest.mark.django_db
+# def test_partial_update():
+#    urls, client, _ = data
+#    response = client.patch(urls["retrieve"], data={"name": "updated"})
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#
+#    # verify updated value
+#    response = client.get(urls["retrieve"])
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#    assert response.json()["data"]["name"] == "updated"
+
+
+# @pytest.mark.django_db
+# def test_destroy(data):
+#    urls, client, _ = data
+#    response = client.delete(urls["retrieve"])
+#    assert response.status_code == 204

core/apps/chat/tests/chat/test_ChatRoom.py

@@ -0,0 +1,101 @@
+import pytest
+from django.urls import reverse
+from rest_framework.test import APIClient
+
+from core.apps.chat.models import ChatroomModel
+
+
+@pytest.fixture
+def instance(db):
+    return ChatroomModel._baker()
+
+
+@pytest.fixture
+def api_client(instance):
+    client = APIClient()
+    ##client.force_authenticate(user=instance.user)
+    return client, instance
+
+
+@pytest.fixture
+def data(api_client):
+    client, instance = api_client
+    return (
+        {
+            "list": reverse("ChatRoom-list"),
+            "retrieve": reverse("ChatRoom-detail", kwargs={"pk": instance.pk}),
+            "retrieve-not-found": reverse("ChatRoom-detail", kwargs={"pk": 1000}),
+        },
+        client,
+        instance,
+    )
+
+
+@pytest.mark.django_db
+def test_list(data):
+    urls, client, _ = data
+    response = client.get(urls["list"])
+    data_resp = response.json()
+    assert response.status_code == 200
+    assert data_resp["status"] is True
+
+
+@pytest.mark.django_db
+def test_retrieve(data):
+    urls, client, _ = data
+    response = client.get(urls["retrieve"])
+    data_resp = response.json()
+    assert response.status_code == 200
+    assert data_resp["status"] is True
+
+
+@pytest.mark.django_db
+def test_retrieve_not_found(data):
+    urls, client, _ = data
+    response = client.get(urls["retrieve-not-found"])
+    data_resp = response.json()
+    assert response.status_code == 404
+    assert data_resp["status"] is False
+
+
+# @pytest.mark.django_db
+# def test_create(data):
+#    urls, client, _ = data
+#    response = client.post(urls["list"], data={"name": "test"})
+#    assert response.json()["status"] is True
+#    assert response.status_code == 201
+
+
+# @pytest.mark.django_db
+# def test_update(data):
+#    urls, client, _ = data
+#    response = client.patch(urls["retrieve"], data={"name": "updated"})
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#
+#    # verify updated value
+#    response = client.get(urls["retrieve"])
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#    assert response.json()["data"]["name"] == "updated"
+
+
+# @pytest.mark.django_db
+# def test_partial_update():
+#    urls, client, _ = data
+#    response = client.patch(urls["retrieve"], data={"name": "updated"})
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#
+#    # verify updated value
+#    response = client.get(urls["retrieve"])
+#    assert response.json()["status"] is True
+#    assert response.status_code == 200
+#    assert response.json()["data"]["name"] == "updated"
+
+
+# @pytest.mark.django_db
+# def test_destroy(data):
+#    urls, client, _ = data
+#    response = client.delete(urls["retrieve"])
+#    assert response.status_code == 204

core/apps/chat/translation/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/translation/chat.py

@@ -0,0 +1,13 @@
+from modeltranslation.translator import TranslationOptions, register
+
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+
+
+@register(ChatmessageModel)
+class ChatmessageTranslation(TranslationOptions):
+    fields = []
+
+
+@register(ChatroomModel)
+class ChatroomTranslation(TranslationOptions):
+    fields = []

core/apps/chat/urls.py

@@ -0,0 +1,9 @@
+from django.urls import include, path
+from rest_framework.routers import DefaultRouter
+
+from .views import ChatmessageView, ChatRoomView
+
+router = DefaultRouter()
+router.register("rooms", ChatRoomView, basename="chat-rooms")
+router.register("messages", ChatmessageView, basename="chat-messages")
+urlpatterns = [path("", include(router.urls))]

core/apps/chat/validators/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/validators/chat.py

@@ -0,0 +1,15 @@
+# from django.core.exceptions import ValidationError
+
+
+class ChatmessageValidator:
+    def __init__(self): ...
+
+    def __call__(self):
+        return True
+
+
+class ChatroomValidator:
+    def __init__(self): ...
+
+    def __call__(self):
+        return True

core/apps/chat/views/__init__.py

@@ -0,0 +1 @@
+from .chat import *  # noqa

core/apps/chat/views/chat.py

@@ -0,0 +1,172 @@
+from django_core.mixins import BaseViewSetMixin
+from django_filters.rest_framework import DjangoFilterBackend
+from drf_spectacular.utils import OpenApiParameter, extend_schema
+from rest_framework.decorators import action
+from rest_framework.filters import OrderingFilter
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+from rest_framework.viewsets import ModelViewSet
+
+from core.apps.chat.filters.chat import ChatmessageFilter, ChatroomFilter
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+from core.apps.chat.serializers.chat import (
+    CreateChatmessageSerializer,
+    CreateChatroomSerializer,
+    ListChatmessageSerializer,
+    ListChatroomSerializer,
+    RetrieveChatmessageSerializer,
+    RetrieveChatroomSerializer,
+)
+
+
+@extend_schema(
+    tags=["Chat"],
+    parameters=[
+        OpenApiParameter("room", int, description="Xona ID bo'yicha filter"),
+        OpenApiParameter("message_type", str, description="Xabar turi: text, image, video, voice, file"),
+        OpenApiParameter("is_read", bool, description="O'qilgan/o'qilmagan"),
+        OpenApiParameter("created_from", str, description="Boshlanish sanasi (ISO 8601)"),
+        OpenApiParameter("created_to", str, description="Tugash sanasi (ISO 8601)"),
+    ],
+)
+class ChatmessageView(BaseViewSetMixin, ModelViewSet):
+    permission_classes = [IsAuthenticated]
+    parser_classes_for_create = None  # multipart + json qo'llab-quvvatlanadi
+
+    filter_backends = [DjangoFilterBackend, OrderingFilter]
+    filterset_class = ChatmessageFilter
+    ordering_fields = ["created_at"]
+    ordering = ["created_at"]
+    pagination_class = None
+
+    action_permission_classes = {}
+    action_serializer_class = {
+        "list": ListChatmessageSerializer,
+        "retrieve": RetrieveChatmessageSerializer,
+        "create": CreateChatmessageSerializer,
+    }
+
+    def get_serializer_class(self):
+        return self.action_serializer_class.get(self.action, ListChatmessageSerializer)
+
+    def get_queryset(self):
+        return (
+            ChatmessageModel.objects.select_related("sender")
+            .only(
+                "id",
+                "room_id",
+                "message_type",
+                "text",
+                "file",
+                "is_read",
+                "created_at",
+                "sender__id",
+                "sender__first_name",
+                "sender__last_name",
+                "sender__phone",
+                "sender__role",
+            )
+        )
+
+    def list(self, request, *args, **kwargs):
+        queryset = self.filter_queryset(self.get_queryset())
+        results = list(queryset)
+        serializer = self.get_serializer(results, many=True)
+        return Response(
+            {
+                "count": len(results),
+                "next": None,
+                "previous": None,
+                "results": serializer.data,
+            }
+        )
+
+    @extend_schema(description="Xabarlarni o'qilgan deb belgilash")
+    @action(detail=False, methods=["post"], url_path="mark-read")
+    def mark_read(self, request):
+        """
+        Berilgan xona uchun barcha o'qilmagan xabarlarni o'qilgan qiladi.
+        Body: { "room": <id> }
+        """
+        room_id = request.data.get("room")
+        if not room_id:
+            return Response({"detail": "room majburiy."}, status=400)
+
+        updated = (
+            ChatmessageModel.objects.filter(room_id=room_id, is_read=False)
+            .exclude(sender=request.user)
+            .update(is_read=True)
+        )
+        return Response({"updated": updated})
+
+
+@extend_schema(
+    tags=["ChatRoom"],
+    parameters=[
+        OpenApiParameter("type", str, description="Xona turi: auto_evaluation, direct"),
+        OpenApiParameter("auto_evaluation", int, description="AutoEvaluation ID"),
+    ],
+)
+class ChatRoomView(BaseViewSetMixin, ModelViewSet):
+    permission_classes = [IsAuthenticated]
+
+    filter_backends = [DjangoFilterBackend]
+    filterset_class = ChatroomFilter
+    pagination_class = None
+
+    action_permission_classes = {}
+    action_serializer_class = {
+        "list": ListChatroomSerializer,
+        "retrieve": RetrieveChatroomSerializer,
+        "create": CreateChatroomSerializer,
+    }
+
+    def get_serializer_class(self):
+        return self.action_serializer_class.get(self.action, ListChatroomSerializer)
+
+    def get_queryset(self):
+        return ChatroomModel.objects.prefetch_related("members").only(
+            "id",
+            "type",
+            "auto_evaluation_id",
+            "created_at",
+        )
+
+    def list(self, request, *args, **kwargs):
+        queryset = self.filter_queryset(self.get_queryset())
+        results = list(queryset)
+        serializer = self.get_serializer(results, many=True)
+        return Response(
+            {
+                "count": len(results),
+                "next": None,
+                "previous": None,
+                "results": serializer.data,
+            }
+        )
+
+    @extend_schema(
+        description="Xonaga yangi a'zo qo'shish",
+        request={"application/json": {"type": "object", "properties": {"user_id": {"type": "integer"}}}},
+    )
+    @action(detail=True, methods=["post"], url_path="add-member")
+    def add_member(self, request, pk=None):
+        room = self.get_object()
+        user_id = request.data.get("user_id")
+        if not user_id:
+            return Response({"detail": "user_id majburiy."}, status=400)
+        room.members.add(user_id)
+        return Response({"detail": "A'zo qo'shildi."})
+
+    @extend_schema(
+        description="Xonadan a'zoni chiqarish",
+        request={"application/json": {"type": "object", "properties": {"user_id": {"type": "integer"}}}},
+    )
+    @action(detail=True, methods=["post"], url_path="remove-member")
+    def remove_member(self, request, pk=None):
+        room = self.get_object()
+        user_id = request.data.get("user_id")
+        if not user_id:
+            return Response({"detail": "user_id majburiy."}, status=400)
+        room.members.remove(user_id)
+        return Response({"detail": "A'zo chiqarildi."})

core/apps/evaluation/migrations/0026_alter_autoevaluationmodel_form_ownership_and_more.py

@@ -11,6 +11,17 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
+        # Mavjud integer qiymatlar ReferenceItem'da yo'q — FK qo'yishdan oldin NULL qilamiz
+        migrations.RunSQL(
+            sql="""
+                UPDATE "AutoEvaluation"
+                SET form_ownership = NULL,
+                    property_rights = NULL,
+                    rate_type = NULL,
+                    value_determined = NULL;
+            """,
+            reverse_sql=migrations.RunSQL.noop,
+        ),
         migrations.AlterField(
             model_name='autoevaluationmodel',
             name='form_ownership',