#!/usr/bin/env python3
"""Create or update a message thread screenshot using a thread file."""

import argparse
import os
import subprocess
import sys
from datetime import datetime, timezone
from typing import Dict, List, Optional

from pydantic import BaseModel, ConfigDict

SCREENSHOTS_DIR = os.path.abspath(os.path.dirname(__file__))
TOOLS_DIR = os.path.abspath(os.path.dirname(SCREENSHOTS_DIR))
ROOT_DIR = os.path.dirname(TOOLS_DIR)
sys.path.insert(0, ROOT_DIR)

# check for the venv
from tools.lib import sanity_check

sanity_check.check_venv(__file__)

from scripts.lib.setup_path import setup_path

setup_path()

os.environ["DJANGO_SETTINGS_MODULE"] = "zproject.settings"
import django

django.setup()

import json

from tools.lib.test_script import prepare_puppeteer_run
from zerver.actions.create_user import do_create_user
from zerver.actions.message_send import do_send_messages, internal_prep_stream_message
from zerver.actions.reactions import do_add_reaction
from zerver.actions.streams import bulk_add_subscriptions, do_change_subscription_property
from zerver.actions.user_settings import do_change_avatar_fields
from zerver.lib.emoji import get_emoji_data
from zerver.lib.message import SendMessageRequest, access_message
from zerver.lib.stream_subscription import get_active_subscriptions_for_stream_id
from zerver.lib.streams import access_stream_by_id, ensure_stream
from zerver.lib.timestamp import datetime_to_timestamp
from zerver.lib.upload import upload_avatar_image
from zerver.lib.url_encoding import topic_narrow_url
from zerver.models import Message, UserProfile
from zerver.models.realms import get_realm
from zerver.models.users import get_user_by_delivery_email

realm = get_realm("zulip")
DEFAULT_USER = get_user_by_delivery_email("iago@zulip.com", realm)
message_thread_ids: List[int] = []


class MessageThread(BaseModel):
    model_config = ConfigDict(frozen=True)

    sender: str
    content: str
    reactions: Dict[str, List[str]]
    date: Dict[str, int]


def create_user(full_name: str, avatar_filename: str) -> None:
    email = f'{full_name.replace(" ", "")}@zulip.com'
    try:
        user = UserProfile.objects.get(realm=realm, full_name=full_name)
    except UserProfile.DoesNotExist:
        user = do_create_user(email, "password", realm, full_name, acting_user=DEFAULT_USER)

    if avatar_filename != "":
        set_avatar(user, avatar_filename)


def set_avatar(user: UserProfile, filename: str) -> None:
    with open(filename, "rb") as f:
        upload_avatar_image(f, user, user)
    do_change_avatar_fields(user, UserProfile.AVATAR_FROM_USER, acting_user=DEFAULT_USER)


def create_and_subscribe_stream(
    stream_name: str, users: List[str], color: Optional[str] = None
) -> None:
    stream = ensure_stream(realm, stream_name, acting_user=DEFAULT_USER)
    bulk_add_subscriptions(
        realm,
        [stream],
        list(UserProfile.objects.filter(realm=realm, full_name__in=users)),
        acting_user=DEFAULT_USER,
    )

    (stream, sub) = access_stream_by_id(DEFAULT_USER, stream.id)
    assert sub is not None
    if color is not None:
        do_change_subscription_property(
            DEFAULT_USER, sub, stream, "color", color, acting_user=DEFAULT_USER
        )


def send_stream_messages(
    stream_name: str, topic: str, staged_messages_data: List[MessageThread]
) -> List[int]:
    staged_messages = [dict(staged_message) for staged_message in staged_messages_data]
    stream = ensure_stream(realm, stream_name, acting_user=DEFAULT_USER)
    subscribers_query = get_active_subscriptions_for_stream_id(
        stream.id, include_deactivated_users=False
    ).values_list("user_profile", flat=True)

    subscribers: Dict[str, UserProfile] = {}
    for subscriber_id in subscribers_query:
        subscriber = UserProfile.objects.get(realm=realm, id=subscriber_id)
        subscribers[subscriber.full_name] = subscriber

    messages: List[Optional[SendMessageRequest]] = []

    for message in staged_messages:
        date_sent = message["date"]

        message_request = internal_prep_stream_message(
            subscribers[message["sender"]],
            stream,
            topic,
            message["content"],
            forged=True,
            forged_timestamp=datetime_to_timestamp(
                datetime(
                    date_sent["year"],
                    date_sent["month"],
                    date_sent["day"],
                    date_sent["hour"],
                    date_sent["minute"],
                    tzinfo=timezone.utc,
                )
            ),
        )
        messages.append(message_request)

    message_ids = [
        sent_message_result.message_id for sent_message_result in do_send_messages(messages)
    ]
    global message_thread_ids
    message_thread_ids += message_ids

    for message, message_id in zip(staged_messages, message_ids):
        if message.get("reactions") is not None:
            reactions = message["reactions"]
            for reaction, user_names in reactions.items():
                users = [subscribers[user_name] for user_name in user_names]
                add_message_reactions(message_id, reaction, users)

    return message_ids


def add_message_reactions(message_id: int, emoji: str, users: List[UserProfile]) -> None:
    preview_message = access_message(user_profile=DEFAULT_USER, message_id=message_id)
    emoji_data = get_emoji_data(realm.id, emoji)
    for user in users:
        do_add_reaction(
            user, preview_message, emoji, emoji_data.emoji_code, emoji_data.reaction_type
        )


def capture_streams_narrow_screenshot(
    image_path: str, stream_name: str, topic: str, unread_msg_id: int
) -> None:
    stream = ensure_stream(realm, stream_name, acting_user=DEFAULT_USER)

    narrow_uri = topic_narrow_url(realm=realm, stream=stream, topic_name=topic)
    narrow = f"{stream_name}/{topic}"
    screenshot_script = os.path.join(SCREENSHOTS_DIR, "thread-screenshot.js")
    subprocess.check_call(
        ["node", screenshot_script, narrow_uri, narrow, str(unread_msg_id), image_path, realm.url]
    )


parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group(required=True)

group.add_argument(
    "--thread",
    nargs="+",
    type=str,
    help="Path of the file where the thread for screenshot is present",
)
fixture_group = parser.add_argument_group("thread")

options = parser.parse_args()
prepare_puppeteer_run()

try:
    realm = get_realm("zulip")
    with open(options.thread[0]) as f:
        threads = json.load(f)
        for thread in threads:
            for user, avatar in thread["users"].items():
                create_user(user, avatar)

            if thread["recipient_type"] == "channel":
                users = list(thread["users"].keys())
                users.append("Iago")
                create_and_subscribe_stream(thread["channel"], users, thread["color"])
                message_ids = send_stream_messages(
                    thread["channel"], thread["topic"], thread["messages"]
                )
                capture_streams_narrow_screenshot(
                    thread["screenshot"], thread["channel"], thread["topic"], min(message_ids)
                )


finally:
    Message.objects.filter(id__in=message_thread_ids).delete()