add LibCal functionality

This commit is contained in:
Riley Housden 2022-08-19 22:22:48 -04:00
parent bae52e7d7e
commit a5b5189e52
Signed by: InValidFire
GPG key ID: 0D6208F6DF56B4D8
7 changed files with 341 additions and 71 deletions

104
ext/libcal.py Normal file
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@ -0,0 +1,104 @@
import traceback
from hikari.files import Resource
import miru
import hikari
import lightbulb
from typing import Optional
from lib.config import load_config
from lib.gcal import GoogleCalendarAPI
from lib.room import Room
from lib.ocr import get_room_data, NoMatchException
plugin = lightbulb.Plugin("LibCal")
config = load_config()
def add_rooms_to_embed(room_list: list[Room], embed: hikari.Embed):
for room in room_list:
embed.add_field(room.get_time_str(), room.number)
class BookingConfirmationView(miru.View):
def __init__(self, *, timeout: Optional[float] = 120, autodefer: bool = True, room_list: list[Room] = [], image: Resource | None = None) -> None:
self.room_list = room_list
if image is not None:
self.image = image
else:
self.image = None
super().__init__(timeout=timeout, autodefer=autodefer)
@miru.button(label="Yes", style=hikari.ButtonStyle.SUCCESS)
async def confirm_button(self, button: miru.Button, ctx: miru.Context) -> None:
gcal = GoogleCalendarAPI()
for room in self.room_list:
await gcal.create_event(room.number, room.start_time, room.end_time)
embed = hikari.Embed(title="Rooms Booked!")
add_rooms_to_embed(self.room_list, embed)
await ctx.edit_response(embed=embed, components=[])
thread_embed = hikari.Embed(title="Rooms were booked!")
thread_embed.set_author(name=ctx.user.username, icon=ctx.user.avatar_url)
thread_embed.set_image(self.image)
add_rooms_to_embed(self.room_list, thread_embed)
await ctx.app.rest.create_message(config.discord_study_room_thread, embed=thread_embed)
self.stop()
@miru.button(label="No", style=hikari.ButtonStyle.DANGER)
async def cancel_button(self, button: miru.Button, ctx: miru.Context) -> None:
embed = hikari.Embed(title="Aborted!")
await ctx.edit_response(embed=embed, components=[])
self.stop()
@plugin.command
@lightbulb.option("img", "image to check for events", type=hikari.Attachment, required=True)
@lightbulb.command("book", "add room bookings to Google Calendar", ephemeral=True)
@lightbulb.implements(lightbulb.SlashCommand)
async def book(ctx: lightbulb.Context) -> None:
response = hikari.Embed()
image = await ctx.options.img.read()
room_list = get_room_data(image)
add_rooms_to_embed(room_list, response)
response.title = "Room Bookings"
response.description = "Are the booking(s) correct?"
view = BookingConfirmationView(room_list=room_list, image=ctx.options.img)
resp = await ctx.respond(response, components=view.build())
view.start(await resp.message())
@book.set_error_handler
async def book_error_handler(event: lightbulb.CommandErrorEvent):
print("ERROR TYPE:", type(event.exception))
if isinstance(event.exception.__cause__, NoMatchException):
embed = hikari.Embed(title="Huh, I can't read that", description="Could you try another picture?")
await event.context.respond(embed=embed)
else:
embed = hikari.Embed(
title="Booking Error", description="Whelp, better luck next time I guess... the images used are attached.")
embed.add_field("Traceback", traceback.format_exc())
await event.context.respond(embed=embed, attachments=event.context.attachments)
@plugin.command
@lightbulb.command("rooms", "View today's rooms in Google Calendar.", ephemeral=True)
@lightbulb.implements(lightbulb.SlashCommand)
async def rooms(ctx: lightbulb.Context) -> None:
gcal = GoogleCalendarAPI()
events = await gcal.get_events()
room_list = [Room.from_event_dict(event) for event in events]
embed = hikari.Embed(title="Today's Rooms!")
if len(room_list) == 0:
embed.description = "Looks like there's no rooms booked today. :("
for room in room_list[::-1]:
embed.add_field(
f"{room.start_time.strftime('%H:%M')} - {room.end_time.strftime('%H:%M')}", room.number)
await ctx.respond(embed)
def load(bot: lightbulb.BotApp):
bot.add_plugin(plugin)
def unload(bot: lightbulb.BotApp):
bot.remove_plugin(plugin)

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@ -10,88 +10,76 @@ config = load_config()
plugin = lightbulb.Plugin("SystemPlugin")
async def create_subprocess(*args):
proc = await asyncio.create_subprocess_exec(*args,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
stdout, _ = await proc.communicate()
return stdout.decode("utf-8").strip()
async def get_git_latest_commit_id():
return await create_subprocess("git", "rev-parse", "--short", "HEAD")
async def get_git_branch():
return await create_subprocess("git", "rev-parse", "--abbrev-ref", "HEAD")
async def get_git_remote():
return await create_subprocess("git", "branch", "-r")
async def get_git_head_diff_branch(branch: str) -> str:
# diff HEAD to remote
return await create_subprocess("git", "diff", "head", branch)
async def get_git_index_diff_branch(branch: str) -> str:
# diff index to remote
return await create_subprocess("git", "diff", branch)
async def get_git_commits_ahead_behind(branch: str, remote: str) -> tuple[int, int]:
# commits ahead/behind remote
output = await create_subprocess("git", "rev-list", "--left-right", "--count", branch+"..."+remote)
commits_ahead = int(output.split()[0])
commits_behind = int(output.split()[1])
return commits_ahead, commits_behind
async def get_git_dev(remote: str, branch: str) -> bool:
# dev environment tests
if await get_git_head_diff_branch(remote) != "": # difference between HEAD and remote
return True
elif config.git_branch != branch: # branch has been changed
return True
elif await get_git_index_diff_branch(remote) != "": # difference between index and remote
return True
elif (await get_git_commits_ahead_behind(branch, remote))[0] > 0: # ahead in commits
return True
return False
async def get_git_update(dev_status: bool, branch, remote) -> bool:
commits_behind, _ = await get_git_commits_ahead_behind(branch, remote)
if not dev_status and commits_behind > 0:
return True
return False
async def get_git_status() -> dict:
output = {}
try:
id_proc = await asyncio.create_subprocess_exec("git", "rev-parse", "--short", "HEAD",
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
stdout, _ = await id_proc.communicate()
output["commit_id"] = stdout.decode("utf-8")
br_proc = await asyncio.create_subprocess_exec("git", "rev-parse", "--abbrev-ref", "HEAD",
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
stdout, _ = await br_proc.communicate()
output["branch"] = stdout.decode("utf-8").strip()
rm_proc = await asyncio.create_subprocess_exec("git", "branch", "-r",
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
stdout, _ = await rm_proc.communicate()
output['remote'] = "remotes/"+stdout.decode("utf-8").lstrip().split("\n")[0]
# diff HEAD to remote
hd_proc = await asyncio.create_subprocess_exec("git", "diff", "HEAD", output['remote'],
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
# diff index to remote
ix_proc = await asyncio.create_subprocess_exec("git", "diff", output['remote'],
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
stdout, _ = await ix_proc.communicate()
ix_diff = stdout.decode("utf-8")
# commits ahead/behind remote
ab_proc = await asyncio.create_subprocess_exec("git", "rev-list", "--left-right", "--count", output['branch']+"..."+output["remote"],
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE
)
stdout, _ = await ab_proc.communicate()
commits_ahead = stdout.decode("utf-8").split()[0]
commits_behind = stdout.decode("utf-8").split()[1]
stdout, _ = await hd_proc.communicate()
hd_diff = stdout.decode("utf-8")
output['dev'] = False
# dev environment tests
if hd_diff != "": # difference between HEAD and remote
output['dev'] = True
elif config.branch != output["branch"]: # branch has been changed
output['dev'] = True
elif ix_diff != "": # difference between index and remote
output['dev'] = True
elif int(commits_ahead) > 0: # ahead in commits
output['dev'] = True
output['update'] = False
if not output['dev'] and int(commits_behind) > 0:
output['update'] = True
except subprocess.SubprocessError as err:
print(err)
output["commit_id"] = await get_git_latest_commit_id()
output["branch"] = await get_git_branch()
output["remote"] = await get_git_remote()
output["dev"] = await get_git_dev(output['remote'], output['branch'])
output['update'] = await get_git_update(output['dev'], output['branch'], output['remote'])
return output
@plugin.command
@lightbulb.command("ping", "ping the bot.", ephemeral=True)
@lightbulb.command("ping", "pong!", ephemeral=True)
@lightbulb.implements(lightbulb.SlashCommand)
async def ping(ctx: lightbulb.Context) -> None:
embed = hikari.Embed(title="Ping!",
embed = hikari.Embed(title="Pong!",
description=f"latency: {round(ctx.bot.heartbeat_latency * 1000, ndigits=2)}ms"
)
await ctx.respond(embed)
@plugin.command
@lightbulb.command("info", "get bot info", ephemeral=True)
@lightbulb.command("info", "get bot information such as the version, and repository link.", ephemeral=True)
@lightbulb.implements(lightbulb.SlashCommand)
async def info(ctx: lightbulb.Context) -> None:
git_status = await get_git_status()

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@ -6,16 +6,22 @@ from dataclasses import dataclass
class Config(object):
discord_token: str | None = None
discord_guild_id: int | None = None
discord_study_room_thread: int | None = None
git_branch: str | None = None
git_url: str | None = None
google_calendar_id: str | None = None
time_zone: str | None = None
def config_decoder(obj):
if '__type__' in obj and obj['__type__'] == "Config":
return Config(
discord_token=obj['discord_token'],
discord_guild_id=obj['discord_guild_id'],
discord_study_room_thread=obj['discord_study_room_thread'],
git_branch=obj['git_branch'],
git_url=obj['git_url']
git_url=obj['git_url'],
google_calendar_id=obj['google_calendar_id'],
time_zone=obj['time_zone']
)
def save_config(config: dict):

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lib/gcal.py Normal file
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from __future__ import annotations
from datetime import datetime, time
from pathlib import Path
import json
import pytz
from aiogoogle import Aiogoogle
from lib.config import load_config
config = load_config()
class GoogleCalendarAPI():
def __init__(self, creds_path: Path = Path("token.json"), calendar_id = config.google_calendar_id):
self._creds_path = creds_path
self._calendar_id = calendar_id
def get_user_creds(self) -> dict:
with Path(self._creds_path).open("r", encoding="utf-8") as fp:
creds = json.load(fp)
output = {"access_token": creds['token'], 'refresh_token': creds['refresh_token']}
return output
def get_client_creds(self) -> dict:
"""Taken from an Installed App credentials file"""
with Path(self._creds_path).open("r", encoding="utf-8") as fp:
creds = json.load(fp)
output = {
'client_id': creds['client_id'],
'client_secret': creds['client_secret'],
'scopes': creds['scopes']
}
return output
async def get_event(self, event_id) -> dict:
async with Aiogoogle(user_creds=self.get_user_creds(), client_creds=self.get_client_creds()) as aiogoogle:
api = await aiogoogle.discover("calendar", "v3")
result = await aiogoogle.as_user(api.events.get(calendarId=self._calendar_id, eventId=event_id))
return result
async def get_events(self,
start_time = datetime.combine(datetime.now(), time.min, tzinfo=pytz.timezone(config.time_zone)).isoformat(),
end_time = datetime.combine(datetime.now(), time.max, tzinfo=pytz.timezone(config.time_zone)).isoformat()
):
async with Aiogoogle(user_creds=self.get_user_creds(), client_creds=self.get_client_creds()) as aiogoogle:
api = await aiogoogle.discover("calendar", "v3")
result = await aiogoogle.as_user(api.events.list(calendarId = self._calendar_id, timeMin = start_time, timeMax = end_time))
return result['items']
async def create_event(self, name: str, start_time: datetime, end_time: datetime):
async with Aiogoogle(user_creds=self.get_user_creds(), client_creds=self.get_client_creds()) as aiogoogle:
api = await aiogoogle.discover("calendar", "v3")
event = {
"summary": "",
"start": {},
"end": {}
}
event['summary'] = name
event['start']['dateTime'] = start_time.isoformat().strip()
event['end']['dateTime'] = end_time.isoformat().strip()
await aiogoogle.as_user(api.events.insert(calendarId=self._calendar_id, json=event))

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lib/ocr.py Normal file
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import re
from datetime import datetime
from io import BytesIO
import pytz
from pytesseract import image_to_string
from PIL import Image
from lib.config import load_config
from lib.room import Room
__all__ = ["get_room_data"]
config = load_config()
RE_STRING = re.compile( # https://regex101.com/r/ELsqrO/1
r"(L-[0-9]{4}): " # room number (group 1)
# time-slot (group 2,3,4 - group 5,6,7)
r"([1-12]{1,2}):([0,3]{2})(am|pm) - ([1-12]{1,2}):([0,3]{2})(am|pm), "
# weekday (group 8)
r"(Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday), "
# month (group 9)
r"(January|February|March|April|May|June|July|August|September|October|November|December) "
r"([1-9][0-9]|[1-9]), ([0-9]{4})", # day & year (group 10 & 11)
flags=re.M
)
class NotAMatchException(Exception):
pass
class NoMatchException(Exception):
pass
def add_zero_padding(value: str):
"""Adds zero-padding to a single digit value."""
if int(value) < 10:
return "0"+str(int(value)) # this removes leading 0 if already present
return value
def libcal_to_datetime(year: str, month: str, day: str, hour: str, minute: str, am_pm: str) -> datetime:
"""Takes date information as displayed by LibCal and turns it into a datetime object.
All values should be given in an unmodified string format."""
date = datetime.strptime(f"{year}-{month}-{add_zero_padding(day)}-"
f"{add_zero_padding(hour)}-{add_zero_padding(minute)}-{am_pm}",
"%Y-%B-%d-%I-%M-%p")
tz = pytz.timezone(config.time_zone)
return tz.localize(date) # adds timezone info to object
def correct_commas(string: str):
"""Ensures all commas have a space after them in the given string."""
return re.sub(r"(,)([^ ])", r"\1 \2", string)
def correct_newlines(string: str):
"""Replaces all newlines with a space in the given string."""
return string.replace("\n", " ")
def get_room_data(img: bytes) -> list[Room]:
"""Gets the room data from a given image"""
rooms: list[Room] = []
start_time: datetime | None = None
end_time: datetime | None = None
img_string = image_to_string(Image.open(BytesIO(img)))
img_string = correct_newlines(img_string)
img_string = correct_commas(img_string)
matches = re.finditer(RE_STRING, img_string)
for match in matches:
if isinstance(match, re.Match):
room_number = match.group(1)
start_time = libcal_to_datetime(match.group(11), match.group(
9), match.group(10), match.group(2), match.group(3), match.group(4))
end_time = libcal_to_datetime(match.group(11), match.group(
9), match.group(10), match.group(5), match.group(6), match.group(7))
room = Room(room_number, start_time, end_time)
rooms.append(room)
else:
raise NotAMatchException(match)
if len(rooms) == 0:
raise NoMatchException
return rooms

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lib/room.py Normal file
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from datetime import datetime
import dateutil.parser as parser
class Room:
def __init__(self, number: str, start_time: datetime, end_time: datetime):
self.number: str = number
self.start_time: datetime = start_time
self.end_time: datetime = end_time
@classmethod
def from_event_dict(cls, body: dict):
start_time = parser.parse(body['start']['dateTime'])
end_time = parser.parse(body['end']['dateTime'])
return cls(body['summary'], start_time, end_time)
def get_time_str(self) -> str:
date = self.start_time.strftime("%B %d")
start = self.start_time.strftime("%H:%M")
end = self.end_time.strftime("%H:%M")
return f"{date}, {start} - {end}"

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@ -1,4 +1,5 @@
import lightbulb
import miru
from lib.config import load_config
@ -6,5 +7,6 @@ config = load_config()
bot = lightbulb.BotApp(config.discord_token, default_enabled_guilds=[config.discord_guild_id])
bot.load_extensions_from("ext/")
miru.load(bot)
bot.run()