from __future__ import annotations

import logging

from .graph import MSTeamsGraphClient

logger = logging.getLogger(__name__)


async def get_message(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
    message_id: str,
) -> dict | None:
    path = f"/chats/{chat_id}/messages/{message_id}"
    try:
        data = await graph_client.fetch_json(path)
        return _parse_message(data)
    except Exception as e:
        logger.warning("Failed to get message %s from chat %s: %s", message_id, chat_id, e)
        return None


async def search_messages(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
    query: str,
    *,
    limit: int = 20,
) -> list[dict]:
    path = f'/chats/{chat_id}/messages?$search="{query}"&$top={limit}'
    try:
        data = await graph_client.fetch_json(path)
        return _parse_messages(data)
    except Exception as e:
        logger.warning("Failed to search messages in chat %s: %s", chat_id, e)
        return []


async def pin_message(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
    message_id: str,
) -> bool:
    path = f"/chats/{chat_id}/pinnedMessages"
    body = {"message@odata.bind": f"https://graph.microsoft.com/v1.0/chats/{chat_id}/messages/{message_id}"}
    try:
        await graph_client.fetch_json(path, method="POST", body=body)
        return True
    except Exception as e:
        logger.warning("Failed to pin message %s in chat %s: %s", message_id, chat_id, e)
        return False


async def unpin_message(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
    pinned_message_id: str,
) -> bool:
    path = f"/chats/{chat_id}/pinnedMessages/{pinned_message_id}"
    try:
        await graph_client.fetch_json(path, method="DELETE")
        return True
    except Exception as e:
        logger.warning("Failed to unpin message %s in chat %s: %s", pinned_message_id, chat_id, e)
        return False


async def list_pinned_messages(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
) -> list[dict]:
    path = f"/chats/{chat_id}/pinnedMessages?$expand=message"
    try:
        data = await graph_client.fetch_json(path)
        return data.get("value", [])
    except Exception as e:
        logger.warning("Failed to list pinned messages in chat %s: %s", chat_id, e)
        return []


async def set_reaction(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
    message_id: str,
    reaction_type: str,
    user_id: str | None = None,
) -> bool:
    path = f"/chats/{chat_id}/messages/{message_id}/setReaction"
    body = {"reactionType": reaction_type}
    try:
        await graph_client.fetch_json(path, method="POST", body=body)
        return True
    except Exception as e:
        logger.warning("Failed to set reaction on message %s: %s", message_id, e)
        return False


async def unset_reaction(
    graph_client: MSTeamsGraphClient,
    chat_id: str,
    message_id: str,
    reaction_type: str,
    user_id: str | None = None,
) -> bool:
    path = f"/chats/{chat_id}/messages/{message_id}/unsetReaction"
    body = {"reactionType": reaction_type}
    try:
        await graph_client.fetch_json(path, method="POST", body=body)
        return True
    except Exception as e:
        logger.warning("Failed to unset reaction on message %s: %s", message_id, e)
        return False


def _parse_message(data: dict) -> dict:
    body = data.get("body", {})
    from_info = data.get("from", {})
    return {
        "id": data.get("id", ""),
        "text": body.get("content", ""),
        "content_type": body.get("contentType", "text"),
        "created_at": data.get("createdDateTime", ""),
        "last_modified_at": data.get("lastModifiedDateTime", ""),
        "from": from_info,
        "from_name": from_info.get("user", {}).get("displayName", ""),
        "message_type": data.get("messageType", "message"),
        "importance": data.get("importance", "normal"),
        "subject": data.get("subject", ""),
        "attachments": data.get("attachments", []),
        "reactions": data.get("reactions", []),
    }


def _parse_messages(data: dict) -> list[dict]:
    messages = data.get("value", [])
    return [_parse_message(msg) for msg in messages]