# 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.

# To use this service you will need a Sinch account to which you can get your
# API_TOKEN and SERVICE_PLAN_ID right from your console/dashboard at:
#     https://dashboard.sinch.com/sms/overview
#
# You will also need to send the SMS From a phone number or account id name.

# This is identified as the source (or where the SMS message will originate
# from). Activated phone numbers can be found on your dashboard here:
#  - https://dashboard.sinch.com/numbers/your-numbers/numbers
#
import json

import requests

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


class SinchRegion:
    """Defines the Sinch Server Regions."""

    USA = "us"
    EUROPE = "eu"


# Used for verification purposes
SINCH_REGIONS = (SinchRegion.USA, SinchRegion.EUROPE)


class NotifySinch(NotifyBase):
    """A wrapper for Sinch Notifications."""

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

    # The services URL
    service_url = "https://sinch.com/"

    # All notification requests are secure
    secure_protocol = "sinch"

    # Allow 300 requests per minute.
    # 60/300 = 0.2
    request_rate_per_sec = 0.20

    # the number of seconds undelivered messages should linger for
    # in the Sinch queue
    validity_period = 14400

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

    # Sinch uses the http protocol with JSON requests
    #   - the 'spi' gets substituted with the Service Provider ID
    #     provided as part of the Apprise URL.
    notify_url = "https://{region}.sms.api.sinch.com/xms/v1/{spi}/batches"

    # The maximum length of the body
    body_maxlen = 160

    # A title can not be used for SMS Messages.  Setting this to zero will
    # cause any title (if defined) to get placed into the message body.
    title_maxlen = 0

    # Define object templates
    templates = (
        "{schema}://{service_plan_id}:{api_token}@{from_phone}",
        "{schema}://{service_plan_id}:{api_token}@{from_phone}/{targets}",
    )

    # Define our template tokens
    template_tokens = dict(
        NotifyBase.template_tokens,
        **{
            "service_plan_id": {
                "name": _("Account SID"),
                "type": "string",
                "private": True,
                "required": True,
                "regex": (r"^[a-f0-9]+$", "i"),
            },
            "api_token": {
                "name": _("Auth Token"),
                "type": "string",
                "private": True,
                "required": True,
                "regex": (r"^[a-f0-9]+$", "i"),
            },
            "from_phone": {
                "name": _("From Phone No"),
                "type": "string",
                "required": True,
                "regex": (r"^\+?[0-9\s)(+-]+$", "i"),
                "map_to": "source",
            },
            "target_phone": {
                "name": _("Target Phone No"),
                "type": "string",
                "prefix": "+",
                "regex": (r"^[0-9\s)(+-]+$", "i"),
                "map_to": "targets",
            },
            "short_code": {
                "name": _("Target Short Code"),
                "type": "string",
                "regex": (r"^[0-9]{5,6}$", "i"),
                "map_to": "targets",
            },
            "targets": {
                "name": _("Targets"),
                "type": "list:string",
            },
        },
    )

    # Define our template arguments
    template_args = dict(
        NotifyBase.template_args,
        **{
            "from": {
                "alias_of": "from_phone",
            },
            "spi": {
                "alias_of": "service_plan_id",
            },
            "region": {
                "name": _("Region"),
                "type": "string",
                "regex": (r"^[a-z]{2}$", "i"),
                "default": SinchRegion.USA,
            },
            "token": {
                "alias_of": "api_token",
            },
            "to": {
                "alias_of": "targets",
            },
        },
    )

    def __init__(
        self,
        service_plan_id,
        api_token,
        source,
        targets=None,
        region=None,
        **kwargs,
    ):
        """Initialize Sinch Object."""
        super().__init__(**kwargs)

        # The Account SID associated with the account
        self.service_plan_id = validate_regex(
            service_plan_id, *self.template_tokens["service_plan_id"]["regex"]
        )
        if not self.service_plan_id:
            msg = (
                "An invalid Sinch Account SID "
                f"({service_plan_id}) was specified."
            )
            self.logger.warning(msg)
            raise TypeError(msg)

        # The Authentication Token associated with the account
        self.api_token = validate_regex(
            api_token, *self.template_tokens["api_token"]["regex"]
        )
        if not self.api_token:
            msg = (
                "An invalid Sinch Authentication Token "
                f"({api_token}) was specified."
            )
            self.logger.warning(msg)
            raise TypeError(msg)

        # Setup our region
        self.region = (
            self.template_args["region"]["default"]
            if not isinstance(region, str)
            else region.lower()
        )
        if self.region and self.region not in SINCH_REGIONS:
            msg = f"The region specified ({region}) is invalid."
            self.logger.warning(msg)
            raise TypeError(msg)

        # The Source Phone # and/or short-code
        result = is_phone_no(source, min_len=5)
        if not result:
            msg = (
                "The Account (From) Phone # or Short-code specified "
                f"({source}) is invalid."
            )
            self.logger.warning(msg)
            raise TypeError(msg)

        # Tidy source
        self.source = result["full"]

        if len(self.source) < 11 or len(self.source) > 14:
            # A short code is a special 5 or 6 digit telephone number
            # that's shorter than a full phone number.
            if len(self.source) not in (5, 6):
                msg = (
                    "The Account (From) Phone # specified "
                    f"({source}) is invalid."
                )
                self.logger.warning(msg)
                raise TypeError(msg)

            # else... it as a short code so we're okay

        else:
            # We're dealing with a phone number; so we need to just
            # place a plus symbol at the end of it
            self.source = f"+{self.source}"

        # Parse our targets
        self.targets = []

        for target in parse_phone_no(targets):
            # Parse each phone number we found
            result = is_phone_no(target)
            if not result:
                self.logger.warning(
                    f"Dropped invalid phone # ({target}) specified.",
                )
                continue

            # store valid phone number
            self.targets.append("+{}".format(result["full"]))

        return

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

        if not self.targets and len(self.source) in (5, 6):
            # Generate a warning since we're a short-code.  We need
            # a number to message at minimum
            self.logger.warning("There are no valid Sinch targets to notify.")
            return False

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

        # Prepare our headers
        headers = {
            "User-Agent": self.app_id,
            "Authorization": f"Bearer {self.api_token}",
            "Content-Type": "application/json",
        }

        # Prepare our payload
        payload = {
            "body": body,
            "from": self.source,
            # The To gets populated in the loop below
            "to": None,
        }

        # Prepare our Sinch URL (spi = Service Provider ID)
        url = self.notify_url.format(
            region=self.region, spi=self.service_plan_id
        )

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

        if len(targets) == 0:
            # No sources specified, use our own phone no
            targets.append(self.source)

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

            # Prepare our user
            payload["to"] = [target]

            # Some Debug Logging
            self.logger.debug(
                "Sinch POST URL:"
                f" {url} (cert_verify={self.verify_certificate})"
            )
            self.logger.debug(f"Sinch Payload: {payload}")

            # Always call throttle before any remote server i/o is made
            self.throttle()
            try:
                r = requests.post(
                    url,
                    data=json.dumps(payload),
                    headers=headers,
                    verify=self.verify_certificate,
                    timeout=self.request_timeout,
                )

                # The responsne might look like:
                # {
                #  "id": "CJloRJOe3MtDITqx",
                #  "to": ["15551112222"],
                #  "from": "15553334444",
                #  "canceled": false,
                #  "body": "This is a test message from your Sinch account",
                #  "type": "mt_text",
                #  "created_at": "2020-01-14T01:05:20.694Z",
                #  "modified_at": "2020-01-14T01:05:20.694Z",
                #  "delivery_report": "none",
                #  "expire_at": "2020-01-17T01:05:20.694Z",
                #  "flash_message": false
                # }
                if r.status_code not in (
                    requests.codes.created,
                    requests.codes.ok,
                ):
                    # We had a problem
                    status_str = NotifyBase.http_response_code_lookup(
                        r.status_code
                    )

                    # set up our status code to use
                    status_code = r.status_code

                    try:
                        # Update our status response if we can
                        json_response = json.loads(r.content)
                        status_code = json_response.get("code", status_code)
                        status_str = json_response.get("message", status_str)

                    except (AttributeError, TypeError, ValueError):
                        # ValueError = r.content is Unparsable
                        # TypeError = r.content is None
                        # AttributeError = r is None

                        # We could not parse JSON response.
                        # We will just use the status we already have.
                        pass

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

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

                    # Mark our failure
                    has_error = True
                    continue

                else:
                    self.logger.info(f"Sent Sinch notification to {target}.")

            except requests.RequestException as e:
                self.logger.warning(
                    f"A Connection error occurred sending Sinch:{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 if self.secure else self.protocol,
            self.service_plan_id,
            self.api_token,
            self.source,
        )

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

        # Define any URL parameters
        params = {
            "region": self.region,
        }

        # Extend our parameters
        params.update(self.url_parameters(privacy=privacy, *args, **kwargs))

        return "{schema}://{spi}:{token}@{source}/{targets}/?{params}".format(
            schema=self.secure_protocol,
            spi=self.pprint(
                self.service_plan_id, privacy, mode=PrivacyMode.Tail, safe=""
            ),
            token=self.pprint(self.api_token, privacy, safe=""),
            source=NotifySinch.quote(self.source, safe=""),
            targets="/".join(
                [NotifySinch.quote(x, safe="") for x in self.targets]
            ),
            params=NotifySinch.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

        # Get our entries; split_path() looks after unquoting content for us
        # by default
        results["targets"] = NotifySinch.split_path(results["fullpath"])

        # The hostname is our source number
        results["source"] = NotifySinch.unquote(results["host"])

        # Get our service_plan_ide and api_token from the user/pass config
        results["service_plan_id"] = NotifySinch.unquote(results["user"])
        results["api_token"] = NotifySinch.unquote(results["password"])

        # Auth Token
        if "token" in results["qsd"] and len(results["qsd"]["token"]):
            # Extract the account spi from an argument
            results["api_token"] = NotifySinch.unquote(results["qsd"]["token"])

        # Account SID
        if "spi" in results["qsd"] and len(results["qsd"]["spi"]):
            # Extract the account spi from an argument
            results["service_plan_id"] = NotifySinch.unquote(
                results["qsd"]["spi"]
            )

        # Support the 'from'  and 'source' variable so that we can support
        # targets this way too.
        # The 'from' makes it easier to use yaml configuration
        if "from" in results["qsd"] and len(results["qsd"]["from"]):
            results["source"] = NotifySinch.unquote(results["qsd"]["from"])

        if "source" in results["qsd"] and len(results["qsd"]["source"]):
            results["source"] = NotifySinch.unquote(results["qsd"]["source"])

        # Allow one to define a region
        if "region" in results["qsd"] and len(results["qsd"]["region"]):
            results["region"] = NotifySinch.unquote(results["qsd"]["region"])

        # Support the 'to' variable so that we can support targets this way too
        # The 'to' makes it easier to use yaml configuration
        if "to" in results["qsd"] and len(results["qsd"]["to"]):
            results["targets"] += NotifySinch.parse_phone_no(
                results["qsd"]["to"]
            )

        return results
