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#             █▀█ █ █ █ █▀█ █▀▄ █
#              © Copyright 2022
#           https://t.me/hikariatama
#
# 🔒      Licensed under the GNU AGPLv3
# 🌐 https://www.gnu.org/licenses/agpl-3.0.html

# meta pic: https://static.dan.tatar/backuper_icon.png
# meta banner: https://mods.hikariatama.ru/badges/backuper.jpg
# meta developer: @hikarimods
# scope: hikka_only
# scope: hikka_min 1.2.10

import datetime
import io
import json
import logging
import os
import zipfile

from telethon.tl.types import Message

from .. import loader, utils

logger = logging.getLogger(__name__)

DATA_DIR = (
    os.path.normpath(os.path.join(utils.get_base_dir(), ".."))
    if "OKTETO" not in os.environ and "DOCKER" not in os.environ
    else "/data"
)

LOADED_MODULES_DIR = os.path.join(DATA_DIR, "loaded_modules")


@loader.tds
class BackuperMod(loader.Module):
    """Create the backup of all modules or the whole database"""

    strings = {
        "name": "Backuper",
        "backup_caption": (
            "<emoji document_id=5469718869536940860>👆</emoji> <b>This is your database"
            " backup. Do not give it to anyone, it contains personal info.</b>"
        ),
        "reply_to_file": (
            "<emoji document_id=5312526098750252863>🚫</emoji> <b>Reply to .json or"
            " .zip"
            " file</b>"
        ),
        "db_restored": (
            "<emoji document_id=5774134533590880843>🔄</emoji> <b>Database updated,"
            " restarting...</b>"
        ),
        "modules_backup": (
            "<emoji document_id=6334332637041134172>🗃</emoji> <b>Backup mods ({})</b>"
        ),
        "mods_restored": (
            "<emoji document_id=5314250708508220914>✅</emoji> <b>Mods restored,"
            " restarting</b>"
        ),
    }

    strings_ru = {
        "backup_caption": (
            "<emoji document_id=5469718869536940860>👆</emoji> <b>Это - бекап базы"
            " данных. Никому его не передавай, он содержит личную информацию.</b>"
        ),
        "reply_to_file": (
            "<emoji document_id=5312526098750252863>🚫</emoji> <b>Ответь на .json или"
            " .zip файл</b>"
        ),
        "db_restored": (
            "<emoji document_id=5774134533590880843>🔄</emoji> <b>База обновлена,"
            " перезагружаюсь...</b>"
        ),
        "modules_backup": (
            "<emoji document_id=6334332637041134172>🗃</emoji> <b>Бекап модулей ({})</b>"
        ),
        "mods_restored": (
            "<emoji document_id=5314250708508220914>✅</emoji> <b>Модули восстановлены,"
            " перезагружаюсь</b>"
        ),
        "_cmd_doc_backupdb": "Создать бекап базы данных [будет отправлен в Избранное]",
        "_cmd_doc_restoredb": "Восстановить базу данных из файла",
        "_cmd_doc_backupmods": "Создать бекап модулей",
        "_cmd_doc_restoremods": "<reply to file> - Восстановить модули из файла",
        "_cls_doc": "Создает резервные копии",
    }

    strings_de = {
        "backup_caption": (
            "<emoji document_id=5469718869536940860>👆</emoji> <b>Dies ist ein"
            " Datenbank-Backup. Gib es niemandem, es enthält persönliche"
            " Informationen.</b>"
        ),
        "reply_to_file": (
            "<emoji document_id=5312526098750252863>🚫</emoji> <b>Antworte auf .json"
            " oder .zip Datei</b>"
        ),
        "db_restored": (
            "<emoji document_id=5774134533590880843>🔄</emoji> <b>Datenbank"
            " aktualisiert, starte neu...</b>"
        ),
        "modules_backup": (
            "<emoji document_id=6334332637041134172>🗃</emoji> <b>Backup-Module ({})</b>"
        ),
        "mods_restored": (
            "<emoji document_id=5314250708508220914>✅</emoji> <b>Module"
            " wiederhergestellt, starte neu</b>"
        ),
        "_cmd_doc_backupdb": (
            "Datenbank-Backup erstellen [wird in den Favoriten gesendet]"
        ),
        "_cmd_doc_restoredb": "Datenbank aus Datei wiederherstellen",
        "_cmd_doc_backupmods": "Backup-Module erstellen",
        "_cmd_doc_restoremods": "<reply to file> - Module aus Datei wiederherstellen",
        "_cls_doc": "Erstellt Sicherungskopien",
    }

    strings_hi = {
        "backup_caption": (
            "<emoji document_id=5469718869536940860>👆</emoji> <b>यह आपका डेटाबेस बैकअप"
            " है। किसी को भी न दें, यह व्यक्तिगत जानकारी सामग्री में है।</b>"
        ),
        "reply_to_file": (
            "<emoji document_id=5312526098750252863>🚫</emoji> <b>.json या .zip फ़ाइल पर"
            " जवाब दें</b>"
        ),
        "db_restored": (
            "<emoji document_id=5774134533590880843>🔄</emoji> <b>डेटाबेस अपडेट कर रहा"
            " है, पुनः आरंभ कर रहा है...</b>"
        ),
        "modules_backup": (
            "<emoji document_id=6334332637041134172>🗃</emoji> <b>मॉड्स बैकअप ({})</b>"
        ),
        "mods_restored": (
            "<emoji document_id=5314250708508220914>✅</emoji> <b>मॉड्स पुनः स्थापित कर"
            " रहे हैं, पुनः आरंभ कर रहे हैं</b>"
        ),
        "_cmd_doc_backupdb": "डेटाबेस बैकअप बनाएं [फ़ेवरिट्स में भेजा जाएगा]",
        "_cmd_doc_restoredb": "फ़ाइल से डेटाबेस पुनः स्थापित करें",
        "_cmd_doc_backupmods": "मॉड्स बैकअप बनाएं",
        "_cmd_doc_restoremods": "<reply to file> - फ़ाइल से मॉड्स पुनः स्थापित करें",
        "_cls_doc": "बैकअप बनाता है",
    }

    strings_uz = {
        "backup_caption": (
            "<emoji document_id=5469718869536940860>👆</emoji> <b>Bu sizning"
            " ma'lumotlar"
            " bazangizning e'loni. Kimga ko'rsatmasangiz, shu shaxsiy ma'lumotlarni o'z"
            " ichiga oladi.</b>"
        ),
        "reply_to_file": (
            "<emoji document_id=5312526098750252863>🚫</emoji> <b>.json yoki .zip"
            " faylga"
            " javob bering</b>"
        ),
        "db_restored": (
            "<emoji document_id=5774134533590880843>🔄</emoji> <b>Ma'lumotlar bazasi"
            " yangilandi, qayta ishga tushirilmoqda...</b>"
        ),
        "modules_backup": (
            "<emoji document_id=6334332637041134172>🗃</emoji> <b>Modullar e'loni"
            " ({})</b>"
        ),
        "mods_restored": (
            "<emoji document_id=5314250708508220914>✅</emoji> <b>Modullar qayta"
            " tiklandi, qayta ishga tushirilmoqda</b>"
        ),
        "_cmd_doc_backupdb": (
            "Ma'lumotlar bazasini e'lon qiling [Favoritlarga jo'natiladi]"
        ),
        "_cmd_doc_restoredb": "Fayldan ma'lumotlar bazasini tiklash",
        "_cmd_doc_backupmods": "Modullarni e'lon qiling",
        "_cmd_doc_restoremods": "<reply to file> - Fayldan modullarni tiklash",
        "_cls_doc": "E'lon qiladi",
    }

    strings_tr = {
        "backup_caption": (
            "<emoji document_id=5469718869536940860>👆</emoji> <b>Bu veritabanı"
            " yedeğinizdir. Kimseye verin, kişisel bilgiler içerir.</b>"
        ),
        "reply_to_file": (
            "<emoji document_id=5312526098750252863>🚫</emoji> <b>.json veya .zip"
            " dosyasına yanıt verin</b>"
        ),
        "db_restored": (
            "<emoji document_id=5774134533590880843>🔄</emoji> <b>Veritabanı"
            " güncellendi, yeniden başlatılıyor...</b>"
        ),
        "modules_backup": (
            "<emoji document_id=6334332637041134172>🗃</emoji> <b>Modüller yedeği"
            " ({})</b>"
        ),
        "mods_restored": (
            "<emoji document_id=5314250708508220914>✅</emoji> <b>Modüller geri"
            " yüklendi, yeniden başlatılıyor</b>"
        ),
        "_cmd_doc_backupdb": "Veritabanı yedeği oluştur [favorilere gönderilecek]",
        "_cmd_doc_restoredb": "Dosyadan veritabanını geri yükle",
        "_cmd_doc_backupmods": "Modüller yedeği oluştur",
        "_cmd_doc_restoremods": "<dosyaya yanıt ver> - Modülleri dosyadan geri yükle",
        "_cls_doc": "Yedek oluşturur",
    }

    async def backupdbcmd(self, message: Message):
        """Create database backup [will be sent in pm]"""
        txt = io.BytesIO(json.dumps(self._db).encode("utf-8"))
        txt.name = (
            f"db-backup-{getattr(datetime, 'datetime', datetime).now().strftime('%d-%m-%Y-%H-%M')}.json"
        )
        await self._client.send_file("me", txt, caption=self.strings("backup_caption"))
        await message.delete()

    async def restoredbcmd(self, message: Message):
        """Restore database from file"""
        reply = await message.get_reply_message()
        if not reply or not reply.media:
            await utils.answer(
                message,
                self.strings("reply_to_file"),
            )
            return

        file = await self._client.download_file(reply.media, bytes)
        decoded_text = json.loads(file.decode("utf-8"))

        if not self._db.process_db_autofix(decoded_text):
            raise RuntimeError("Attempted to restore broken database")

        self._db.clear()
        self._db.update(**decoded_text)
        self._db.save()
        await utils.answer(message, self.strings("db_restored"))
        await self.allmodules.commands["restart"](
            await message.respond(f"{self.get_prefix()}restart --force")
        )

    async def backupmodscmd(self, message: Message):
        """Create backup of mods"""
        mods_quantity = len(self.lookup("Loader").get("loaded_modules", {}))

        result = io.BytesIO()
        result.name = "mods.zip"

        db_mods = json.dumps(self.lookup("Loader").get("loaded_modules", {})).encode()

        with zipfile.ZipFile(result, "w", zipfile.ZIP_DEFLATED) as zipf:
            if "DYNO" not in os.environ:
                for root, _, files in os.walk(LOADED_MODULES_DIR):
                    for file in files:
                        with open(os.path.join(root, file), "rb") as f:
                            zipf.writestr(file, f.read())
                            mods_quantity += 1

            zipf.writestr("db_mods.json", db_mods)

        archive = io.BytesIO(result.getvalue())
        archive.name = (
            f"mods-{getattr(datetime, 'datetime', datetime).now().strftime('%d-%m-%Y-%H-%M')}.zip"
        )

        await self._client.send_file(
            utils.get_chat_id(message),
            archive,
            caption=self.strings("modules_backup").format(mods_quantity),
        )
        await message.delete()

    async def restoremodscmd(self, message: Message):
        """<reply to file> - Restore mods from backup"""
        reply = await message.get_reply_message()
        if not reply or not reply.media:
            await utils.answer(message, self.strings("reply_to_file"))
            return

        file = await self._client.download_file(reply.media, bytes)
        try:
            decoded_text = json.loads(file.decode("utf-8"))
        except Exception:
            try:
                file = io.BytesIO(file)
                file.name = "mods.zip"

                with zipfile.ZipFile(file) as zf:
                    for name in zf.namelist():
                        with zf.open(name, "r") as module:
                            if name == "db_mods.json":
                                db_mods = json.loads(module.read().decode())
                                if isinstance(db_mods, dict) and all(
                                    isinstance(key, str) and isinstance(value, str)
                                    for key, value in db_mods.items()
                                ):
                                    self.lookup("Loader").set("loaded_modules", db_mods)

                                continue

                            if "DYNO" not in os.environ:
                                with open(
                                    os.path.join(LOADED_MODULES_DIR, name), "wb"
                                ) as f:
                                    f.write(module.read())
            except Exception:
                logger.exception("Can't restore mods")
                await utils.answer(message, self.strings("reply_to_file"))
                return
        else:
            if not isinstance(decoded_text, dict) or not all(
                isinstance(key, str) and isinstance(value, str)
                for key, value in decoded_text.items()
            ):
                raise RuntimeError("Invalid backup")

            self.lookup("Loader").set("loaded_modules", decoded_text)

        await utils.answer(message, self.strings("mods_restored"))
        await self.allmodules.commands["restart"](
            await message.respond(f"{self.get_prefix()}restart --force")
        )