"""
Copyright 2024, Zep Software, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""

import json
from typing import Any, Optional, Protocol, TypedDict

from pydantic import BaseModel, Field

from .models import Message, PromptFunction, PromptVersion


class NodeDuplicate(BaseModel):
    is_duplicate: bool = Field(..., description='true or false')
    uuid: Optional[str] = Field(
        None,
        description="uuid of the existing node like '5d643020624c42fa9de13f97b1b3fa39' or null",
    )
    name: str = Field(
        ...,
        description="Updated name of the new node (use the best name between the new node's name, an existing duplicate name, or a combination of both)",
    )


class Prompt(Protocol):
    node: PromptVersion
    node_list: PromptVersion


class Versions(TypedDict):
    node: PromptFunction
    node_list: PromptFunction


def node(context: dict[str, Any]) -> list[Message]:
    return [
        Message(
            role='system',
            content='You are a helpful assistant that de-duplicates nodes from node lists.',
        ),
        Message(
            role='user',
            content=f"""
        <PREVIOUS MESSAGES>
        {json.dumps([ep for ep in context['previous_episodes']], indent=2)}
        </PREVIOUS MESSAGES>
        <CURRENT MESSAGE>
        {context["episode_content"]}
        </CURRENT MESSAGE>

        <EXISTING NODES>
        {json.dumps(context['existing_nodes'], indent=2)}
        </EXISTING NODES>
        
        Given the above EXISTING NODES and their attributes, MESSAGE, and PREVIOUS MESSAGES. Determine if the NEW NODE extracted from the conversation
        is a duplicate entity of one of the EXISTING NODES.

        <NEW NODE>
        {json.dumps(context['extracted_nodes'], indent=2)}
        </NEW NODE>
        Task:
        1. If the New Node represents the same entity as any node in Existing Nodes, return 'is_duplicate: true' in the 
            response. Otherwise, return 'is_duplicate: false'
        2. If is_duplicate is true, also return the uuid of the existing node in the response
        3. If is_duplicate is true, return a name for the node that is the most complete full name.

        Guidelines:
        1. Use both the name and summary of nodes to determine if the entities are duplicates, 
            duplicate nodes may have different names

        Respond with a JSON object in the following format:
            {{
                "is_duplicate": true or false,
                "uuid": "uuid of the existing node like 5d643020624c42fa9de13f97b1b3fa39 or null",
                "name": "Updated name of the new node (use the best name between the new node's name, an existing duplicate name, or a combination of both)"
            }}
        """,
        ),
    ]


def node_list(context: dict[str, Any]) -> list[Message]:
    return [
        Message(
            role='system',
            content='You are a helpful assistant that de-duplicates nodes from node lists.',
        ),
        Message(
            role='user',
            content=f"""
        Given the following context, deduplicate a list of nodes:

        Nodes:
        {json.dumps(context['nodes'], indent=2)}

        Task:
        1. Group nodes together such that all duplicate nodes are in the same list of uuids
        2. All duplicate uuids should be grouped together in the same list
        3. Also return a new summary that synthesizes the summary into a new short summary

        Guidelines:
        1. Each uuid from the list of nodes should appear EXACTLY once in your response
        2. If a node has no duplicates, it should appear in the response in a list of only one uuid

        Respond with a JSON object in the following format:
        {{
            "nodes": [
                {{
                    "uuids": ["5d643020624c42fa9de13f97b1b3fa39", "node that is a duplicate of 5d643020624c42fa9de13f97b1b3fa39"],
                    "summary": "Brief summary of the node summaries that appear in the list of names."
                }}
            ]
        }}
        """,
        ),
    ]


versions: Versions = {'node': node, 'node_list': node_list}