# Mobile Verification Toolkit (MVT)
# Copyright (c) 2021-2023 The MVT Authors.
# Use of this software is governed by the MVT License 1.1 that can be found at
#   https://license.mvt.re/1.1/

import logging
from typing import Any, Optional

from mvt.android.modules.backup.base import BackupModule
from mvt.android.parsers.backup import parse_sms_file
from mvt.common.module_types import ModuleResults
from mvt.common.utils import check_for_links


class SMS(BackupModule):
    def __init__(
        self,
        file_path: Optional[str] = None,
        target_path: Optional[str] = None,
        results_path: Optional[str] = None,
        module_options: Optional[dict] = None,
        log: logging.Logger = logging.getLogger(__name__),
        results: Optional[ModuleResults] = None,
    ) -> None:
        super().__init__(
            file_path=file_path,
            target_path=target_path,
            results_path=results_path,
            module_options=module_options,
            log=log,
            results=results,
        )
        self.results: list[dict[str, Any]] = []

    def check_indicators(self) -> None:
        if not self.indicators:
            return

        messages = []
        url_batches = []
        for message in self.results:
            if "body" not in message:
                continue

            message_links = message.get("links", [])
            if message_links == []:
                message_links = check_for_links(message.get("text", ""))

            messages.append(message)
            url_batches.append(message_links)

        for message, ioc_match in zip(
            messages, self.indicators.check_url_batches(url_batches)
        ):
            if ioc_match:
                self.alertstore.critical(
                    ioc_match.message, "", message, matched_indicator=ioc_match.ioc
                )

    def run(self) -> None:
        sms_path = "apps/com.android.providers.telephony/d_f/*_sms_backup"
        for file in self._get_files_by_pattern(sms_path):
            self.log.debug("Processing SMS backup file at %s", file)
            data = self._get_file_content(file)
            self.results.extend(parse_sms_file(data))

        mms_path = "apps/com.android.providers.telephony/d_f/*_mms_backup"
        for file in self._get_files_by_pattern(mms_path):
            self.log.debug("Processing MMS backup file at %s", file)
            data = self._get_file_content(file)
            self.results.extend(parse_sms_file(data))

        self.log.info("Extracted a total of %d SMS & MMS messages", len(self.results))
