# BSD 2-Clause License
#
# Apprise - Push Notification Library.
# Copyright (c) 2026, Chris Caron <lead2gold@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

# Create an account https://gateway.threema.ch/en/ if you don't already have
# one
#
# Read more about Threema Gateway API here:
#   - https://gateway.threema.ch/en/developer/api

from itertools import chain

import requests

from ..common import NotifyType
from ..locale import gettext_lazy as _
from ..url import PrivacyMode
from ..utils.parse import is_email, is_phone_no, parse_list, validate_regex
from .base import NotifyBase


class ThreemaRecipientTypes:
    """The supported recipient specifiers."""

    THREEMA_ID = "to"
    PHONE = "phone"
    EMAIL = "email"


class NotifyThreema(NotifyBase):
    """A wrapper for Threema Gateway Notifications."""

    # The default descriptive name associated with the Notification
    service_name = "Threema Gateway"

    # The services URL
    service_url = "https://gateway.threema.ch/"

    # The default protocol
    secure_protocol = "threema"

    # A URL that takes you to the setup/help of the specific protocol
    setup_url = "https://appriseit.com/services/threema/"

    # Threema Gateway uses the http protocol with JSON requests
    notify_url = "https://msgapi.threema.ch/send_simple"

    # The maximum length of the body
    body_maxlen = 3500

    # No title support
    title_maxlen = 0

    # Define object templates
    templates = ("{schema}://{gateway_id}@{secret}/{targets}",)

    # Define our template tokens
    template_tokens = dict(
        NotifyBase.template_tokens,
        **{
            "gateway_id": {
                "name": _("Gateway ID"),
                "type": "string",
                "private": True,
                "required": True,
                "map_to": "user",
            },
            "secret": {
                "name": _("API Secret"),
                "type": "string",
                "private": True,
                "required": True,
            },
            "target_phone": {
                "name": _("Target Phone No"),
                "type": "string",
                "prefix": "+",
                "regex": (r"^[0-9\s)(+-]+$", "i"),
                "map_to": "targets",
            },
            "target_email": {
                "name": _("Target Email"),
                "type": "string",
                "map_to": "targets",
            },
            "target_threema_id": {
                "name": _("Target Threema ID"),
                "type": "string",
                "map_to": "targets",
            },
            "targets": {
                "name": _("Targets"),
                "type": "list:string",
                "required": True,
            },
        },
    )

    # Define our template arguments
    template_args = dict(
        NotifyBase.template_args,
        **{
            "from": {
                "alias_of": "gateway_id",
            },
            "gwid": {
                "alias_of": "gateway_id",
            },
            "secret": {
                "alias_of": "secret",
            },
            "to": {
                "alias_of": "targets",
            },
        },
    )

    def __init__(self, secret=None, targets=None, **kwargs):
        """Initialize Threema Gateway Object."""
        super().__init__(**kwargs)

        # Validate our params here.

        if not self.user:
            msg = "Threema Gateway ID must be specified"
            self.logger.warning(msg)
            raise TypeError(msg)

        # Verify our Gateway ID
        if len(self.user) != 8:
            msg = "Threema Gateway ID must be 8 characters in length"
            self.logger.warning(msg)
            raise TypeError(msg)

        # Verify our secret
        self.secret = validate_regex(secret)
        if not self.secret:
            msg = f"An invalid Threema API Secret ({secret}) was specified"
            self.logger.warning(msg)
            raise TypeError(msg)

        # Parse our targets
        self.targets = []

        # Used for URL generation afterwards only
        self.invalid_targets = []

        for target in parse_list(targets, allow_whitespace=False):
            if len(target) == 8:
                # Store our user
                self.targets.append((ThreemaRecipientTypes.THREEMA_ID, target))
                continue

            # Check if an email was defined
            result = is_email(target)
            if result:
                # Store our user
                self.targets.append(
                    (ThreemaRecipientTypes.EMAIL, result["full_email"])
                )
                continue

            # Validate targets and drop bad ones:
            result = is_phone_no(target)
            if result:
                # store valid phone number
                self.targets.append(
                    (ThreemaRecipientTypes.PHONE, result["full"])
                )
                continue

            self.logger.warning(
                f"Dropped invalid user/email/phone ({target}) specified",
            )
            self.invalid_targets.append(target)

        return

    def send(self, body, title="", notify_type=NotifyType.INFO, **kwargs):
        """Perform Threema Gateway Notification."""

        if len(self.targets) == 0:
            # There were no services to notify
            self.logger.warning(
                "There were no Threema Gateway targets to notify"
            )
            return False

        # error tracking (used for function return)
        has_error = False

        # Prepare our headers
        headers = {
            "User-Agent": self.app_id,
            "Content-Type": "application/x-www-form-urlencoded; charset=utf-8",
            "Accept": "*/*",
        }

        # Prepare our payload
        payload_ = {
            "secret": self.secret,
            "from": self.user,
            "text": body.encode("utf-8"),
        }

        # Create a copy of the targets list
        targets = list(self.targets)

        while len(targets):
            # Get our target to notify
            key, target = targets.pop(0)

            # Prepare a payload object
            payload = payload_.copy()

            # Set Target
            payload[key] = target

            # Some Debug Logging
            self.logger.debug(
                "Threema Gateway GET URL:"
                f" {self.notify_url} (cert_verify={self.verify_certificate})"
            )
            self.logger.debug(f"Threema Gateway Payload: {payload}")

            # Always call throttle before any remote server i/o is made
            self.throttle()

            try:
                r = requests.post(
                    self.notify_url,
                    params=payload,
                    headers=headers,
                    verify=self.verify_certificate,
                    timeout=self.request_timeout,
                )

                if r.status_code != requests.codes.ok:
                    # We had a problem
                    status_str = NotifyThreema.http_response_code_lookup(
                        r.status_code
                    )

                    self.logger.warning(
                        "Failed to send Threema Gateway notification to {}: "
                        "{}{}error={}".format(
                            target,
                            status_str,
                            ", " if status_str else "",
                            r.status_code,
                        )
                    )

                    self.logger.debug(
                        "Response Details:\r\n%r", (r.content or b"")[:2000])

                    # Mark our failure
                    has_error = True
                    continue

                # We wee successful
                self.logger.info(
                    f"Sent Threema Gateway notification to {target}"
                )

            except requests.RequestException as e:
                self.logger.warning(
                    "A Connection error occurred sending Threema"
                    f" Gateway:{target} notification"
                )
                self.logger.debug(f"Socket Exception: {e!s}")

                # Mark our failure
                has_error = True
                continue

        return not has_error

    @property
    def url_identifier(self):
        """Returns all of the identifiers that make this URL unique from
        another simliar one.

        Targets or end points should never be identified here.
        """
        return (self.secure_protocol, self.user, self.secret)

    def url(self, privacy=False, *args, **kwargs):
        """Returns the URL built dynamically based on specified arguments."""

        # Define any URL parameters
        params = self.url_parameters(privacy=privacy, *args, **kwargs)

        schemaStr = "{schema}://{gatewayid}@{secret}/{targets}?{params}"
        return schemaStr.format(
            schema=self.secure_protocol,
            gatewayid=NotifyThreema.quote(self.user),
            secret=self.pprint(
                self.secret, privacy, mode=PrivacyMode.Secret, safe=""
            ),
            targets="/".join(
                chain(
                    [
                        NotifyThreema.quote(x[1], safe="@+")
                        for x in self.targets
                    ],
                    [
                        NotifyThreema.quote(x, safe="@+")
                        for x in self.invalid_targets
                    ],
                )
            ),
            params=NotifyThreema.urlencode(params),
        )

    def __len__(self):
        """Returns the number of targets associated with this notification."""
        targets = len(self.targets)
        return targets if targets > 0 else 1

    @staticmethod
    def parse_url(url):
        """Parses the URL and returns enough arguments that can allow us to re-
        instantiate this object."""

        results = NotifyBase.parse_url(url, verify_host=False)
        if not results:
            # We're done early as we couldn't load the results
            return results

        results["targets"] = []

        if "secret" in results["qsd"] and len(results["qsd"]["secret"]):
            results["secret"] = NotifyThreema.unquote(results["qsd"]["secret"])

        else:
            results["secret"] = NotifyThreema.unquote(results["host"])

        results["targets"] += NotifyThreema.split_path(results["fullpath"])

        if "from" in results["qsd"] and len(results["qsd"]["from"]):
            results["user"] = NotifyThreema.unquote(results["qsd"]["from"])

        elif "gwid" in results["qsd"] and len(results["qsd"]["gwid"]):
            results["user"] = NotifyThreema.unquote(results["qsd"]["gwid"])

        if "to" in results["qsd"] and len(results["qsd"]["to"]):
            results["targets"] += NotifyThreema.parse_list(
                results["qsd"]["to"], allow_whitespace=False
            )

        return results
