#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import os
import time
import requests
from typing import List, Dict, Any, Optional

# ===== 設定 =====
X_ACCOUNT = os.getenv("dmsendertoken")
if not X_ACCOUNT:
    raise RuntimeError("環境変数 dmsendertoken が設定されていません")

BASE = "https://desk-api.channel.io/desk/channels/200605"
GROUP_ID = 463667
CHECK_PERSON_ID = "614601"

# accountIdベースのブラックリスト
BLACKLIST_ACCOUNT_IDS = ["476793", "486092", "471246"]

HEADERS = {
    "accept": "application/json",
    "accept-language": "ja",
    "content-type": "application/json",
    "x-account": X_ACCOUNT,
}

GET_PARAMS = {
    "sortOrder": "desc",
    "limit": 34,
    "logFolded": "false",
}

WELCOME_TEMPLATE = """
こんにちは。ITRSAにようこそ。
自動でいくつかの部屋に招待しています。

<b>使い方：</b>
左側のメニューから、部屋(グループ)を開くことができます。
・「あいてぃーあーるえすえい」は本部で、雑談などをする部屋です。
・「Youtubeダウンローダー」は、URLを送ると自動でYoutubeをダウンロードしてくれる部屋です。
・「チャッピーくん」は、ChatGPTと話せる部屋です。
・「幹部と裁判所からの報告」はここを管理する幹部や裁判所から通知が来る部屋です。この部屋は基本的に抜けないでください。
"""

INVITE_GROUPS = [
    519217,
    536194,
    534868,
    521995,
    530062,
    517180,
    524837
]

# ===== API =====

def get_messages() -> List[Dict[str, Any]]:
    url = f"{BASE}/groups/{GROUP_ID}/messages"
    r = requests.get(url, headers=HEADERS, params=GET_PARAMS, timeout=20)
    r.raise_for_status()
    return r.json().get("messages", [])


def get_group_titles() -> Dict[int, str]:
    url = f"{BASE}/groups?limit=1000"
    response = requests.get(url, headers=HEADERS, timeout=20)
    response.raise_for_status()

    groups = response.json().get("groups", [])
    return {
        group.get("id"): group.get("title")
        for group in groups
        if "id" in group and "title" in group
    }


def get_manager_account_id(person_id: str) -> Optional[str]:
    """
    personId を使って managers API を取得し、
    managers[0].accountId を返す
    """
    url = f"{BASE}/managers"
    params = {
        "limit": 1,
        "since": person_id
    }

    r = requests.get(url, headers=HEADERS, params=params, timeout=20)
    r.raise_for_status()

    data = r.json()
    managers = data.get("managers", [])

    if not managers:
        return None

    return str(managers[0].get("accountId"))


def blacklist_manager(person_id: str) -> None:
    """
    personId を使って manager を削除
    """
    url = f"{BASE}/managers/{person_id}"
    requests.delete(url, headers=HEADERS, timeout=20).raise_for_status()
    payload = {
        "requestId": f"desk-web-{int(time.time() * 1000)}",
        "blocks": [
            {"type": "text", "value": "さようなら。"}
        ]
    }
    url = f"{BASE}/groups/{GROUP_ID}/messages"
    requests.post(url, headers=HEADERS, json=payload, timeout=20).raise_for_status()
    print(f"[INFO] personId={person_id} を削除しました")


def post_welcome_message() -> None:
    TITLES = get_group_titles()

    welcome_text = WELCOME_TEMPLATE.format(
        hq=TITLES.get(532214, "本部")
    )

    url = f"{BASE}/groups/{GROUP_ID}/messages"
    payload = {
        "requestId": f"desk-web-{int(time.time() * 1000)}",
        "blocks": [
            {"type": "text", "value": welcome_text}
        ]
    }

    requests.post(url, headers=HEADERS, json=payload, timeout=20).raise_for_status()
    print("[INFO] 歓迎メッセージを送信しました")


def invite_person(group_id: int, person_id: str) -> None:
    url = f"{BASE}/groups/{group_id}/invite"
    params = {"managerIds": person_id}
    requests.post(url, headers=HEADERS, params=params, timeout=20).raise_for_status()
    print(f"[INFO] personId={person_id} を group {group_id} に招待しました")


# ===== ロジック =====

def process():
    messages = get_messages()

    # CHECK_PERSON_ID の最新発言時刻
    latest_check_person = max(
        (int(m.get("createdAt", 0))
         for m in messages
         if str(m.get("personId")) == CHECK_PERSON_ID),
        default=0
    )

    join_targets = []
    
    for m in messages:
        log = m.get("log") or {}
        if log.get("action") != "join":
            continue
    
        created_at = int(m.get("createdAt", 0))
        person_id = str(m.get("personId", ""))
    
        # ===== ここを追加 =====
        # CHECK_PERSON_ID の最新発言より前なら無視
        if created_at <= latest_check_person:
            continue
    
        # ===== ブラックリスト判定（accountIdベース）=====
        try:
            account_id = get_manager_account_id(person_id)
        except Exception as e:
            print(f"[ERROR] manager取得失敗 personId={person_id} : {e}")
            continue
    
        if account_id and account_id in BLACKLIST_ACCOUNT_IDS:
            try:
                blacklist_manager(person_id)
            except Exception as e:
                print(f"[ERROR] 削除失敗 personId={person_id} : {e}")
            continue
    
        # ===== 通常処理 =====
        join_targets.append(person_id)
    if not join_targets:
        return

    join_targets = list(set(join_targets))

    # 歓迎メッセージは1回だけ
    post_welcome_message()

    # 招待処理
    for pid in join_targets:
        for gid in INVITE_GROUPS:
            try:
                invite_person(gid, pid)
            except Exception as e:
                print(f"[ERROR] 招待失敗 personId={pid} group={gid} : {e}")


def main():
    print("[INFO] Bot 起動（10秒間隔）")
    while True:
        try:
            process()
        except Exception as e:
            print(f"[ERROR] {e}")
        time.sleep(10)


if __name__ == "__main__":
    main()