feat: convo tagging backend support

backend/apps/web/models/tags.py

+from pydantic import BaseModel
+from typing import List, Union, Optional
+from peewee import *
+from playhouse.shortcuts import model_to_dict
+
+import json
+import uuid
+import time
+
+from apps.web.internal.db import DB
+
+####################
+# Tag DB Schema
+####################
+
+
+class Tag(Model):
+    name = CharField(unique=True)
+    user_id = CharField()
+    data = TextField(null=True)
+
+    class Meta:
+        database = DB
+
+
+class ChatIdTag(Model):
+    tag_name = ForeignKeyField(Tag, backref="chat_id_tags")
+    chat_id = CharField()
+    user_id = CharField()
+    timestamp = DateField()
+
+    class Meta:
+        database = DB
+
+
+class TagModel(BaseModel):
+    name: str
+    user_id: str
+    data: Optional[str] = None
+
+
+class ChatIdTagModel(BaseModel):
+    tag_name: str
+    chat_id: str
+    user_id: str
+    timestamp: int
+
+
+####################
+# Forms
+####################
+
+
+class ChatIdTagForm(BaseModel):
+    tag_name: str
+    chat_id: str
+
+
+class TagChatIdsResponse(BaseModel):
+    chat_ids: List[str]
+
+
+class ChatTagsResponse(BaseModel):
+    tags: List[str]
+
+
+class TagTable:
+    def __init__(self, db):
+        self.db = db
+        db.create_tables([Tag, ChatIdTag])
+
+    def insert_new_tag(self, name: str, user_id: str) -> Optional[TagModel]:
+        tag = TagModel(**{"user_id": user_id, "name": name})
+        try:
+            result = Tag.create(**tag.model_dump())
+            if result:
+                return tag
+            else:
+                return None
+        except:
+            return None
+
+    def get_tag_by_name_and_user_id(
+        self, name: str, user_id: str
+    ) -> Optional[TagModel]:
+        try:
+            tag = Tag.get(Tag.name == name, Tag.user_id == user_id)
+            return TagModel(**model_to_dict(tag))
+        except:
+            return None
+
+    def add_tag_to_chat(
+        self, user_id: str, form_data: ChatIdTagForm
+    ) -> Optional[ChatTagsResponse]:
+        tag = self.get_tag_by_name_and_user_id(form_data.tag_name, user_id)
+        if tag == None:
+            tag = self.insert_new_tag(form_data.tag_name, user_id)
+
+        chatIdTag = ChatIdTagModel(**{"user_id": user_id, "tag_name": tag.name})
+        try:
+            result = ChatIdTag.create(**chatIdTag.model_dump())
+            if result:
+                return chatIdTag
+            else:
+                return None
+        except:
+            return None
+
+    def get_tags_by_chat_id_and_user_id(
+        self, chat_id: str, user_id: str
+    ) -> List[TagModel]:
+        return [
+            TagModel(**model_to_dict(tag))
+            for tag in Tag.select().where(
+                Tag.name
+                in [
+                    ChatIdTagModel(**model_to_dict(chat_id_tag)).tag_name
+                    for chat_id_tag in ChatIdTag.select()
+                    .where(
+                        (ChatIdTag.user_id == user_id) & (ChatIdTag.chat_id == chat_id)
+                    )
+                    .order_by(ChatIdTag.timestamp.desc())
+                ]
+            )
+        ]
+
+    def get_chat_ids_by_tag_name_and_user_id(
+        self, tag_name: str, user_id: str
+    ) -> Optional[ChatIdTagModel]:
+        return [
+            ChatIdTagModel(**model_to_dict(chat_id_tag))
+            for chat_id_tag in ChatIdTag.select()
+            .where((ChatIdTag.user_id == user_id) & (ChatIdTag.tag_name == tag_name))
+            .order_by(ChatIdTag.timestamp.desc())
+        ]
+
+    def count_chat_ids_by_tag_name_and_user_id(
+        self, tag_name: str, user_id: str
+    ) -> int:
+        return (
+            ChatIdTag.select()
+            .where((ChatIdTag.tag_name == tag_name) & (ChatIdTag.user_id == user_id))
+            .count()
+        )
+
+    def delete_tag_by_tag_name_and_chat_id_and_user_id(
+        self, tag_name: str, chat_id: str, user_id: str
+    ) -> bool:
+        try:
+            query = ChatIdTag.delete().where(
+                (ChatIdTag.tag_name == tag_name)
+                & (ChatIdTag.chat_id == chat_id)
+                & (ChatIdTag.user_id == user_id)
+            )
+            query.execute()  # Remove the rows, return number of rows removed.
+
+            tag_count = self.count_chat_ids_by_tag_name_and_user_id(tag_name, user_id)
+            if tag_count == 0:
+                # Remove tag item from Tag col as well
+                query = Tag.delete().where(
+                    (Tag.name == tag_name) & (Tag.user_id == user_id)
+                )
+                query.execute()  # Remove the rows, return number of rows removed.
+
+            return True
+        except:
+            return False
+
+    def delete_tags_by_chat_id_and_user_id(self, chat_id: str, user_id: str) -> bool:
+        tags = self.get_tags_by_chat_id_and_user_id(chat_id, user_id)
+
+        for tag in tags:
+            self.delete_tag_by_tag_name_and_chat_id_and_user_id(
+                tag.tag_name, chat_id, user_id
+            )
+
+        return True
+
+
+Tags = TagTable(DB)

backend/apps/web/routers/chats.py

@@ -16,6 +16,14 @@ from apps.web.models.chats import (
     Chats,
 )
 
+
+from apps.web.models.tags import (
+    TagModel,
+    ChatIdTagForm,
+    ChatTagsResponse,
+    Tags,
+)
+
 from utils.utils import (
     bearer_scheme,
 )
@@ -115,6 +123,63 @@ async def delete_chat_by_id(id: str, user=Depends(get_current_user)):
     return result
 
 
+############################
+# GetChatTagsById
+############################
+
+
+@router.get("/{id}/tags", response_model=List[TagModel])
+async def get_chat_tags_by_id(id: str, user=Depends(get_current_user)):
+    tags = Tags.get_tags_by_chat_id_and_user_id(id, user.id)
+
+    if tags:
+        return tags
+    else:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail=ERROR_MESSAGES.NOT_FOUND
+        )
+
+
+############################
+# AddChatTagById
+############################
+
+
+@router.post("/{id}/tags", response_model=Optional[ChatTagsResponse])
+async def add_chat_tag_by_id(
+    id: str, form_data: ChatIdTagForm, user=Depends(get_current_user)
+):
+    tag = Tags.add_tag_to_chat(user.id, {"tag_name": form_data.tag_name, "chat_id": id})
+
+    if tag:
+        return tag
+    else:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail=ERROR_MESSAGES.NOT_FOUND
+        )
+
+
+############################
+# DeleteChatTagById
+############################
+
+
+@router.delete("/{id}/tags", response_model=Optional[bool])
+async def add_chat_tag_by_id(
+    id: str, form_data: ChatIdTagForm, user=Depends(get_current_user)
+):
+    tag = Tags.delete_tag_by_tag_name_and_chat_id_and_user_id(
+        form_data.tag_name, id, user.id
+    )
+
+    if tag:
+        return tag
+    else:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED, detail=ERROR_MESSAGES.NOT_FOUND
+        )
+
+
 ############################
 # DeleteAllChats
 ############################