python-client-sdk/revolt/http.py

from __future__ import annotations

from typing import (TYPE_CHECKING, Any, Coroutine, Literal, Optional, TypeVar,
                    Union)

import aiohttp
import ulid

from .errors import HTTPError, ServerError
from .file import File

try:
    import ujson as _json
except ImportError:
    import json as _json

if TYPE_CHECKING:
    import aiohttp

    from .file import File
    from .types import ApiInfo
    from .types import Autumn as AutumnPayload
    from .types import Channel, DMChannel
    from .types import Embed as EmbedPayload
    from .types import GetServerMembers, Member
    from .types import Message as MessagePayload
    from .types import Role, Server, ServerBans, ServerInvite, TextChannel
    from .types import User as UserPayload
    from .types import UserProfile, VoiceChannel


__all__ = ("HttpClient",)

T = TypeVar("T")
Request = Coroutine[Any, Any, T]

class HttpClient:
    def __init__(self, session: aiohttp.ClientSession, token: str, api_url: str, api_info: ApiInfo):
        self.session = session
        self.token = token
        self.api_url = api_url
        self.api_info = api_info

    async def request(self, method: Literal["GET", "POST", "PUT", "DELETE", "PATCH"], route: str, *, json: Optional[dict[str, Any]] = None, nonce: bool = True) -> Any:
        url = f"{self.api_url}{route}"

        kwargs = {}
        
        headers = {
            "User-Agent": "Revolt.py https://github.com/Zomatree/revolt.py",
            "x-bot-token": self.token
        }

        if json:
            headers["Content-Type"] = "application/json"

            if nonce:
                json["nonce"] = ulid.new().str # type: ignore

            kwargs["data"] = _json.dumps(json)

        kwargs["headers"] = headers

        async with self.session.request(method, url, **kwargs) as resp:
            text = await resp.text()
            if text:
                response = _json.loads(await resp.text())
            else:
                response = text

        resp_code = resp.status

        if 200 <= resp_code <= 300:
            return response
        elif resp_code == 400:
            raise HTTPError

    async def upload_file(self, file: File, tag: str) -> AutumnPayload:
        url = f"{self.api_info['features']['autumn']['url']}/{tag}"

        headers = {
            "User-Agent": "Revolt.py https://github.com/Zomatree/revolt.py"
        }

        form = aiohttp.FormData()
        form.add_field("file", file.f.read(), filename=file.filename)

        async with self.session.post(url, data=form, headers=headers) as resp:
            response: AutumnPayload = _json.loads(await resp.text())

        resp_code = resp.status

        if resp_code == 400:
            raise HTTPError(response)
        elif 500 <= resp_code <= 600:
            raise ServerError
        else:
            return response

    async def send_message(self, channel: str, content: Optional[str], embeds: Optional[list[EmbedPayload]], attachments: Optional[list[File]]) -> MessagePayload:
        json: dict[str, Any] = {}
        
        if content:
            json["content"] = content
        
        if embeds:
            json["embeds"] = embeds

        if attachments:
            attachment_ids: list[str] = []

            for attachment in attachments:
                data = await self.upload_file(attachment, "attachments")
                attachment_ids.append(data["id"])
                
            json["attachments"] = attachment_ids

        return await self.request("POST", f"/channels/{channel}/messages", json=json)

    async def request_file(self, url: str) -> bytes:
        async with self.session.get(url) as resp:
            return await resp.content.read()

    def fetch_user(self, user_id: str) -> Request[UserPayload]:
        return self.request("GET", f"/users/{user_id}")

    def fetch_profile(self, user_id: str) -> Request[UserProfile]:
        return self.request("GET", f"/users/{user_id}/profile")

    def fetch_default_avatar(self, user_id: str) -> Request[bytes]:
        return self.request_file(f"{self.api_url}/users/{user_id}/default_avatar")
    
    def fetch_dm_channels(self) -> Request[list[Channel]]:
        return self.request("GET", "/users/dms")

    def open_dm(self, user_id: str) -> Request[DMChannel]:
        return self.request("GET", f"/users/{user_id}/dm")

    def fetch_channel(self, channel_id: str) -> Request[Channel]:
        return self.request("GET", f"/channels/{channel_id}")

    def close_channel(self, channel_id: str) -> Request[None]:
        return self.request("DELETE", f"/channels/{channel_id}")

    def fetch_server(self, server_id: str) -> Request[Server]:
        return self.request("GET", f"/servers/{server_id}")

    def delete_leave_server(self, server_id: str) -> Request[None]:
        return self.request("DELETE", f"/servers/{server_id}")

    def create_channel(self, server_id: str, channel_type: Literal["Text", "Voice"], name: str, description: Optional[str]) -> Request[Union[TextChannel, VoiceChannel]]:
        payload = {
            "type": channel_type,
            "name": name
        }

        if description:
            payload["description"] = description

        return self.request("POST", f"/servers/{server_id}/channels", json=payload)

    def fetch_server_invites(self, server_id: str) -> Request[list[ServerInvite]]:
        return self.request("GET", f"/servers/{server_id}/invites")

    def fetch_member(self, server_id: str, member_id: str) -> Request[Member]:
        return self.request("GET", f"/servers/{server_id}/members/{member_id}")

    def kick_member(self, server_id: str, member_id: str) -> Request[None]:
        return self.request("DELETE", f"/servers/{server_id}/members/{member_id}")

    def fetch_members(self, server_id: str) -> Request[GetServerMembers]:
        return self.request("GET", f"/servers/{server_id}/members")

    def ban_member(self, server_id: str, member_id: str, reason: Optional[str]) -> Request[GetServerMembers]:
        payload = {"reason": reason} if reason else None

        return self.request("PUT", f"/servers/{server_id}/bans/{member_id}", json=payload, nonce=False)

    def unban_member(self, server_id: str, member_id: str) -> Request[None]:
        return self.request("DELETE", f"/servers/{server_id}/bans/{member_id}")
    
    def fetch_bans(self, server_id: str) -> Request[ServerBans]:
        return self.request("GET", f"/servers/{server_id}/bans")

    def set_role_permissions(self, server_id: str, role_id: str, server_permissions: int, channel_permissions: int) -> Request[None]:
        payload = {
            "server": server_permissions,
            "channel": channel_permissions
        }

        return self.request("PUT", f"/servers/{server_id}/permissions/{role_id}", json=payload, nonce=False)
    
    def set_default_permissions(self, server_id: str, server_permissions: int, channel_permissions: int) -> Request[None]:
        payload = {
            "server": server_permissions,
            "channel": channel_permissions
        }

        return self.request("PUT", f"/servers/{server_id}/permissions/default", json=payload, nonce=False)

    def create_role(self, server_id: str, name: str) -> Request[Role]:
        return self.request("POST", f"/servers/{server_id}/roles", json={"name": name}, nonce=False)

    def delete_role(self, server_id: str, role_id: str) -> Request[None]:
        return self.request("DELETE", f"/servers/{server_id}/roles/{role_id}")