Refactor

src/applications/schedule_sync/comparators.py

@@ -0,0 +1,62 @@
+from datetime import datetime
+import logging
+
+from .discord_events import DiscordEvent, CreateDiscordEvent, RecurrenceRule
+
+
+logger = logging.getLogger(__name__)
+logger.setLevel(logging.INFO)
+
+
+def is_repeated(start: datetime, target: datetime, rule: RecurrenceRule) -> bool:
+    start_utc = start.astimezone(datetime.now().astimezone().tzinfo)
+    target_utc = target.astimezone(datetime.now().astimezone().tzinfo)
+
+    return start_utc.time() == target_utc.time() and target.weekday() in rule.by_weekday
+
+
+def compare(create_event: CreateDiscordEvent, event: DiscordEvent) -> bool:
+    if create_event.name != event.name:
+        logger.debug(f"Name is different: {create_event.name} != {event.name}")
+        return False
+
+    if create_event.description != event.description:
+        logger.debug(f"Description is different: {create_event.description} != {event.description}")
+        return False
+
+    if create_event.recurrence_rule is not None:
+        if event.recurrence_rule is None:
+            logger.debug(f"Recurrence rule is different: {create_event.recurrence_rule} != {event.recurrence_rule}")
+            return False
+
+        ce_rr = create_event.recurrence_rule
+        e_rr = event.recurrence_rule
+
+        if ce_rr.by_weekday != e_rr.by_weekday:
+            logger.debug(f"Recurrence rule is different: {ce_rr.by_weekday} != {e_rr.by_weekday}")
+            return False
+        if ce_rr.interval != e_rr.interval:
+            logger.debug(f"Recurrence rule is different: {ce_rr.interval} != {e_rr.interval}")
+            return False
+        if ce_rr.frequency != e_rr.frequency:
+            logger.debug(f"Recurrence rule is different: {ce_rr.frequency} != {e_rr.frequency}")
+            return False
+        if not is_repeated(ce_rr.start, e_rr.start, ce_rr):
+            logger.debug(f"Recurrence rule is different: {ce_rr.start} != {e_rr.start}")
+            return False
+    else:
+        if event.recurrence_rule is not None:
+            logger.debug(f"Recurrence rule is different: {create_event.recurrence_rule} != {event.recurrence_rule}")
+            return False
+
+    if create_event.scheduled_start_time != event.scheduled_start_time:
+        if create_event.recurrence_rule is None or not is_repeated(create_event.scheduled_start_time, event.scheduled_start_time, create_event.recurrence_rule):
+            logger.debug(f"Scheduled start time is different: {create_event.scheduled_start_time} != {event.scheduled_start_time}")
+            return False
+
+    if create_event.scheduled_end_time != event.scheduled_end_time:
+        if create_event.recurrence_rule is None or not is_repeated(create_event.scheduled_end_time, event.scheduled_end_time, create_event.recurrence_rule):
+            logger.debug(f"Scheduled end time is different: {create_event.scheduled_end_time} != {event.scheduled_end_time}")
+            return False
+
+    return True

src/applications/schedule_sync/discord_events.py

@@ -0,0 +1,173 @@
+from typing import Self
+from datetime import datetime, timedelta
+import logging
+
+from httpx import AsyncClient
+from pydantic import BaseModel, field_serializer, SerializationInfo
+
+from core.config import config
+
+from .twitch_events import TwitchEvent
+
+
+logger = logging.getLogger(__name__)
+
+
+class RecurrenceRule(BaseModel):
+    start: datetime
+    by_weekday: list[int]
+    interval: int
+    frequency: int
+
+    @field_serializer("start", when_used="always")
+    def serialize_datetime(self, value: datetime, info: SerializationInfo) -> str:
+        return value.isoformat()
+
+    def next_date(self, start: datetime) -> datetime:
+        next_date = start
+
+        while True:
+            next_date += timedelta(days=1)
+
+            if next_date <= datetime.now(start.tzinfo):
+                continue
+
+            if next_date.weekday() in self.by_weekday:
+                return next_date
+
+
+class DiscordEvent(BaseModel):
+    id: str
+    name: str
+    description: str
+    scheduled_start_time: datetime
+    scheduled_end_time: datetime
+    recurrence_rule: RecurrenceRule | None
+    creator_id: str
+
+
+async def get_discord_events(guild_id: int) -> list[DiscordEvent]:
+    async with AsyncClient() as client:
+        response = await client.get(
+            f"https://discord.com/api/v10/guilds/{guild_id}/scheduled-events",
+            headers={"Authorization": f"Bot {config.DISCORD_BOT_TOKEN}"}
+        )
+
+        response.raise_for_status()
+
+        events = [DiscordEvent(**event) for event in response.json()]
+
+        return [event for event in events if event.creator_id == config.DISCORD_BOT_ID]
+
+
+async def delete_discord_event(guild_id: int, event_id: str):
+    async with AsyncClient() as client:
+        response = await client.delete(
+            f"https://discord.com/api/v10/guilds/{guild_id}/scheduled-events/{event_id}",
+            headers={"Authorization": f"Bot {config.DISCORD_BOT_TOKEN}"}
+        )
+
+        response.raise_for_status()
+
+        return response.json()
+
+
+class EntityMetadata(BaseModel):
+    location: str
+
+
+class CreateDiscordEvent(BaseModel):
+    name: str
+    description: str
+    privacy_level: int
+    entity_type: int
+    entity_metadata: EntityMetadata
+    scheduled_start_time: datetime
+    scheduled_end_time: datetime
+    recurrence_rule: RecurrenceRule | None
+
+    @field_serializer("scheduled_start_time", "scheduled_end_time", when_used="always")
+    def serialize_datetime(self, value: datetime, info: SerializationInfo) -> str:
+        return value.isoformat()
+
+    @classmethod
+    def parse_from_twitch_event(cls, event: TwitchEvent, channel_name: str) -> Self:
+        if event.categories:
+            name = f"{event.name} | {event.categories}"
+        else:
+            name = event.name
+
+        if event.repeat_rule:
+            recurrence_rule = RecurrenceRule(
+                start=event.start_at,
+                by_weekday=[event.repeat_rule.weekday.get_number()],
+                interval=1,
+                frequency=2
+            )
+        else:
+            recurrence_rule = None
+
+        return cls(
+            name=name,
+            description=f"{event.description or ''}\n\n\n\n#{event.uid}",
+            privacy_level=2,
+            entity_type=3,
+            entity_metadata=EntityMetadata(location=f"https://twitch.tv/{channel_name}"),
+            scheduled_start_time=event.start_at,
+            scheduled_end_time=event.end_at,
+            recurrence_rule=recurrence_rule
+        )
+
+
+async def create_discord_event(guild_id: int, event: CreateDiscordEvent):
+    async with AsyncClient() as client:
+        response = await client.post(
+            f"https://discord.com/api/v10/guilds/{guild_id}/scheduled-events",
+            json=event.model_dump(),
+            headers={
+                "Authorization": f"Bot {config.DISCORD_BOT_TOKEN}",
+                "Content-Type": "application/json"
+            }
+        )
+
+        if response.status_code == 400:
+            raise ValueError({
+                "status_code": response.status_code,
+                "response": response.json(),
+                "event": event.model_dump()
+            })
+
+        return response.json()
+
+
+class UpdateDiscordEvent(BaseModel):
+    name: str
+    description: str
+    scheduled_start_time: datetime
+    scheduled_end_time: datetime
+    recurrence_rule: RecurrenceRule | None
+
+    @field_serializer("scheduled_start_time", "scheduled_end_time", when_used="always")
+    def serialize_datetime(self, value: datetime, info: SerializationInfo) -> str:
+        return value.isoformat()
+
+
+async def edit_discord_event(guild_id: int, event_id: str, event: UpdateDiscordEvent):
+    async with AsyncClient() as client:
+        response = await client.patch(
+            f"https://discord.com/api/v10/guilds/{guild_id}/scheduled-events/{event_id}",
+            json=event.model_dump(),
+            headers={
+                "Authorization": f"Bot {config.DISCORD_BOT_TOKEN}",
+                "Content-Type": "application/json"
+            }
+        )
+
+        if response.status_code == 400:
+            raise ValueError({
+                "status_code": response.status_code,
+                "response": response.json(),
+                "event": event.model_dump()
+            })
+
+        return response.json()

src/applications/schedule_sync/synchronizer.py

@@ -0,0 +1,107 @@
+import logging
+from datetime import datetime
+
+from applications.common.domain.streamers import TwitchConfig
+
+from .twitch_events import get_twitch_events, TwitchEvent
+from .discord_events import (
+    get_discord_events, DiscordEvent,
+    delete_discord_event,
+    create_discord_event, CreateDiscordEvent,
+    edit_discord_event, UpdateDiscordEvent
+)
+from .comparators import compare
+
+
+logger = logging.getLogger(__name__)
+
+
+async def add_events(
+    guild_id: int,
+    twitch_channel_name: str,
+    twitch_events: list[tuple[str, TwitchEvent]],
+    discord_events: list[tuple[str, DiscordEvent]]
+):
+    discord_events_ids = [event[0] for event in discord_events]
+
+    for (uid, event) in twitch_events:
+        if uid in discord_events_ids:
+            continue
+
+        if event.start_at <= datetime.now(event.start_at.tzinfo) and event.repeat_rule is None:
+            continue
+
+        create_event = CreateDiscordEvent.parse_from_twitch_event(event, twitch_channel_name)
+
+        if create_event.recurrence_rule is not None:
+            duration = create_event.scheduled_end_time - create_event.scheduled_start_time
+
+            while create_event.scheduled_start_time <= datetime.now(create_event.scheduled_start_time.tzinfo):
+                create_event.scheduled_start_time = create_event.recurrence_rule.next_date(create_event.scheduled_start_time)
+                create_event.scheduled_end_time = create_event.scheduled_start_time + duration
+
+        await create_discord_event(guild_id, create_event)
+
+
+async def remove_events(
+    guild_id: int,
+    twith_events: list[tuple[str, TwitchEvent]],
+    discord_events: list[tuple[str, DiscordEvent]]
+):
+    twith_events_ids = [event[0] for event in twith_events]
+
+    for (uid, event) in discord_events:
+        if uid not in twith_events_ids:
+            await delete_discord_event(guild_id, uid)
+
+
+async def edit_events(
+    guild_id: int,
+    twitch_channel_name: str,
+    twith_events: list[tuple[str, TwitchEvent]],
+    discord_events: list[tuple[str, DiscordEvent]]
+):
+    for (uid, twitch_event) in twith_events:
+        for (discord_id, discord_event) in discord_events:
+            if uid != discord_id:
+                continue
+
+            create_event = CreateDiscordEvent.parse_from_twitch_event(twitch_event, twitch_channel_name)
+
+            if compare(create_event, discord_event):
+                continue
+
+            update_event = UpdateDiscordEvent(
+                name=create_event.name,
+                description=create_event.description,
+                scheduled_start_time=create_event.scheduled_start_time,
+                scheduled_end_time=create_event.scheduled_end_time,
+                recurrence_rule=create_event.recurrence_rule
+            )
+
+            if update_event.recurrence_rule is not None:
+                duration = update_event.scheduled_end_time - update_event.scheduled_start_time
+
+                update_event.scheduled_start_time = update_event.recurrence_rule.next_date(update_event.scheduled_start_time)
+                update_event.scheduled_end_time = update_event.scheduled_start_time + duration
+
+                update_event.recurrence_rule.start = update_event.scheduled_start_time
+
+            await edit_discord_event(guild_id, discord_event.id, update_event)
+
+
+async def syncronize(twitch: TwitchConfig, discord_guild_id: int):
+    logger.info(f"Syncronizing events for {twitch.name}")
+
+    twitch_events = await get_twitch_events(str(twitch.id))
+    discord_events = await get_discord_events(discord_guild_id)
+
+    twitch_events_with_id = [(event.uid, event) for event in twitch_events]
+    discord_events_with_id = [
+        (event.description.rsplit("#")[1], event)
+        for event in discord_events
+    ]
+
+    await add_events(discord_guild_id, twitch.name, twitch_events_with_id, discord_events_with_id)
+    await remove_events(discord_guild_id, twitch_events_with_id, discord_events_with_id)
+    await edit_events(discord_guild_id, twitch.name, twitch_events_with_id, discord_events_with_id)

src/applications/schedule_sync/tasks.py

@@ -0,0 +1,24 @@
+from core.broker import broker
+from applications.common.repositories.streamers import StreamerConfigRepository
+from .synchronizer import syncronize
+
+
+@broker.task("scheduler_sync.syncronize_task")
+async def syncronize_task(twitch_id: int):
+    streamer = await StreamerConfigRepository.get_by_twitch_id(twitch_id)
+
+    if streamer.integrations.discord is None:
+        return
+
+    await syncronize(streamer.twitch, streamer.integrations.discord.guild_id)
+
+
+@broker.task("scheduler_sync.syncronize_all_task", schedule=[{"cron": "*/5 * * * *"}])
+async def syncronize_all_task():
+    streamers = await StreamerConfigRepository().all()
+
+    for streamer in streamers:
+        if streamer.integrations.discord is None:
+            continue
+
+        await syncronize_task.kiq(streamer.twitch.id)

src/applications/schedule_sync/twitch_events.py

@@ -0,0 +1,81 @@
+from typing import Optional
+from datetime import datetime
+from enum import StrEnum
+
+import icalendar
+
+from httpx import AsyncClient
+from pydantic import BaseModel
+
+
+class Weekday(StrEnum):
+    Mon = "MO"
+    Tue = "TU"
+    Wed = "WE"
+    Thu = "TH"
+    Fri = "FR"
+    Sat = "SA"
+    Sun = "SU"
+
+    def get_number(self) -> int:
+        return {
+            Weekday.Mon: 0,
+            Weekday.Tue: 1,
+            Weekday.Wed: 2,
+            Weekday.Thu: 3,
+            Weekday.Fri: 4,
+            Weekday.Sat: 5,
+            Weekday.Sun: 6
+        }[self]
+
+
+class WeeklyRepeatRule(BaseModel):
+    weekday: Weekday
+
+
+class TwitchEvent(BaseModel):
+    uid: str
+    start_at: datetime
+    end_at: datetime
+    name: str
+    description: Optional[str]
+    categories: Optional[str]
+    repeat_rule: Optional[WeeklyRepeatRule]
+
+
+async def get_twitch_events(twitch_channel_id: str) -> list[TwitchEvent]:
+    async with AsyncClient() as client:
+        response = await client.get(
+            f"https://api.twitch.tv/helix/schedule/icalendar?broadcaster_id={twitch_channel_id}"
+        )
+
+        events: list[TwitchEvent] = []
+
+        calendar = icalendar.Calendar.from_ical(response.text)
+
+        for raw_event in calendar.walk("VEVENT"):
+            event = TwitchEvent(
+                uid=raw_event.get("UID"),
+                start_at=raw_event.get("DTSTART").dt,
+                end_at=raw_event.get("DTEND").dt,
+                name=raw_event.get("SUMMARY"),
+                description=raw_event.get("DESCRIPTION"),
+                categories=raw_event.get("CATEGORIES").cats[0],
+                repeat_rule=None
+            )
+
+            if raw_event.get("RRULE"):
+                if raw_event.get("RRULE")["FREQ"][0] == "WEEKLY":
+                    value = raw_event.get("RRULE")["BYDAY"][0]
+                    event.repeat_rule = WeeklyRepeatRule(weekday=Weekday(value))
+                else:
+                    raise ValueError("Invalid repeat rule")
+
+            if (
+                event.start_at > datetime.now(event.start_at.tzinfo)
+                or event.end_at > datetime.now(event.end_at.tzinfo)
+                or event.repeat_rule is not None
+            ):
+                events.append(event)
+
+        return events