# Copyright 2021-2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# -----------------------------------------------------------------------------
# GATT - Generic Attribute Profile
#
# See Bluetooth spec @ Vol 3, Part G
#
# -----------------------------------------------------------------------------

# -----------------------------------------------------------------------------
# Imports
# -----------------------------------------------------------------------------
from __future__ import annotations
import enum
import functools
import logging
import struct
from typing import (
    Callable,
    Dict,
    Iterable,
    List,
    Optional,
    Sequence,
    Union,
    TYPE_CHECKING,
)

from bumble.colors import color
from bumble.core import BaseBumbleError, UUID
from bumble.att import Attribute, AttributeValue

if TYPE_CHECKING:
    from bumble.gatt_client import AttributeProxy
    from bumble.device import Connection


# -----------------------------------------------------------------------------
# Logging
# -----------------------------------------------------------------------------
logger = logging.getLogger(__name__)

# -----------------------------------------------------------------------------
# Constants
# -----------------------------------------------------------------------------
# fmt: off
# pylint: disable=line-too-long

GATT_REQUEST_TIMEOUT = 30  # seconds

GATT_MAX_ATTRIBUTE_VALUE_SIZE = 512

# Services
GATT_GENERIC_ACCESS_SERVICE                 = UUID.from_16_bits(0x1800, 'Generic Access')
GATT_GENERIC_ATTRIBUTE_SERVICE              = UUID.from_16_bits(0x1801, 'Generic Attribute')
GATT_IMMEDIATE_ALERT_SERVICE                = UUID.from_16_bits(0x1802, 'Immediate Alert')
GATT_LINK_LOSS_SERVICE                      = UUID.from_16_bits(0x1803, 'Link Loss')
GATT_TX_POWER_SERVICE                       = UUID.from_16_bits(0x1804, 'TX Power')
GATT_CURRENT_TIME_SERVICE                   = UUID.from_16_bits(0x1805, 'Current Time')
GATT_REFERENCE_TIME_UPDATE_SERVICE          = UUID.from_16_bits(0x1806, 'Reference Time Update')
GATT_NEXT_DST_CHANGE_SERVICE                = UUID.from_16_bits(0x1807, 'Next DST Change')
GATT_GLUCOSE_SERVICE                        = UUID.from_16_bits(0x1808, 'Glucose')
GATT_HEALTH_THERMOMETER_SERVICE             = UUID.from_16_bits(0x1809, 'Health Thermometer')
GATT_DEVICE_INFORMATION_SERVICE             = UUID.from_16_bits(0x180A, 'Device Information')
GATT_HEART_RATE_SERVICE                     = UUID.from_16_bits(0x180D, 'Heart Rate')
GATT_PHONE_ALERT_STATUS_SERVICE             = UUID.from_16_bits(0x180E, 'Phone Alert Status')
GATT_BATTERY_SERVICE                        = UUID.from_16_bits(0x180F, 'Battery')
GATT_BLOOD_PRESSURE_SERVICE                 = UUID.from_16_bits(0x1810, 'Blood Pressure')
GATT_ALERT_NOTIFICATION_SERVICE             = UUID.from_16_bits(0x1811, 'Alert Notification')
GATT_HUMAN_INTERFACE_DEVICE_SERVICE         = UUID.from_16_bits(0x1812, 'Human Interface Device')
GATT_SCAN_PARAMETERS_SERVICE                = UUID.from_16_bits(0x1813, 'Scan Parameters')
GATT_RUNNING_SPEED_AND_CADENCE_SERVICE      = UUID.from_16_bits(0x1814, 'Running Speed and Cadence')
GATT_AUTOMATION_IO_SERVICE                  = UUID.from_16_bits(0x1815, 'Automation IO')
GATT_CYCLING_SPEED_AND_CADENCE_SERVICE      = UUID.from_16_bits(0x1816, 'Cycling Speed and Cadence')
GATT_CYCLING_POWER_SERVICE                  = UUID.from_16_bits(0x1818, 'Cycling Power')
GATT_LOCATION_AND_NAVIGATION_SERVICE        = UUID.from_16_bits(0x1819, 'Location and Navigation')
GATT_ENVIRONMENTAL_SENSING_SERVICE          = UUID.from_16_bits(0x181A, 'Environmental Sensing')
GATT_BODY_COMPOSITION_SERVICE               = UUID.from_16_bits(0x181B, 'Body Composition')
GATT_USER_DATA_SERVICE                      = UUID.from_16_bits(0x181C, 'User Data')
GATT_WEIGHT_SCALE_SERVICE                   = UUID.from_16_bits(0x181D, 'Weight Scale')
GATT_BOND_MANAGEMENT_SERVICE                = UUID.from_16_bits(0x181E, 'Bond Management')
GATT_CONTINUOUS_GLUCOSE_MONITORING_SERVICE  = UUID.from_16_bits(0x181F, 'Continuous Glucose Monitoring')
GATT_INTERNET_PROTOCOL_SUPPORT_SERVICE      = UUID.from_16_bits(0x1820, 'Internet Protocol Support')
GATT_INDOOR_POSITIONING_SERVICE             = UUID.from_16_bits(0x1821, 'Indoor Positioning')
GATT_PULSE_OXIMETER_SERVICE                 = UUID.from_16_bits(0x1822, 'Pulse Oximeter')
GATT_HTTP_PROXY_SERVICE                     = UUID.from_16_bits(0x1823, 'HTTP Proxy')
GATT_TRANSPORT_DISCOVERY_SERVICE            = UUID.from_16_bits(0x1824, 'Transport Discovery')
GATT_OBJECT_TRANSFER_SERVICE                = UUID.from_16_bits(0x1825, 'Object Transfer')
GATT_FITNESS_MACHINE_SERVICE                = UUID.from_16_bits(0x1826, 'Fitness Machine')
GATT_MESH_PROVISIONING_SERVICE              = UUID.from_16_bits(0x1827, 'Mesh Provisioning')
GATT_MESH_PROXY_SERVICE                     = UUID.from_16_bits(0x1828, 'Mesh Proxy')
GATT_RECONNECTION_CONFIGURATION_SERVICE     = UUID.from_16_bits(0x1829, 'Reconnection Configuration')
GATT_INSULIN_DELIVERY_SERVICE               = UUID.from_16_bits(0x183A, 'Insulin Delivery')
GATT_BINARY_SENSOR_SERVICE                  = UUID.from_16_bits(0x183B, 'Binary Sensor')
GATT_EMERGENCY_CONFIGURATION_SERVICE        = UUID.from_16_bits(0x183C, 'Emergency Configuration')
GATT_AUTHORIZATION_CONTROL_SERVICE          = UUID.from_16_bits(0x183D, 'Authorization Control')
GATT_PHYSICAL_ACTIVITY_MONITOR_SERVICE      = UUID.from_16_bits(0x183E, 'Physical Activity Monitor')
GATT_ELAPSED_TIME_SERVICE                   = UUID.from_16_bits(0x183F, 'Elapsed Time')
GATT_GENERIC_HEALTH_SENSOR_SERVICE          = UUID.from_16_bits(0x1840, 'Generic Health Sensor')
GATT_AUDIO_INPUT_CONTROL_SERVICE            = UUID.from_16_bits(0x1843, 'Audio Input Control')
GATT_VOLUME_CONTROL_SERVICE                 = UUID.from_16_bits(0x1844, 'Volume Control')
GATT_VOLUME_OFFSET_CONTROL_SERVICE          = UUID.from_16_bits(0x1845, 'Volume Offset Control')
GATT_COORDINATED_SET_IDENTIFICATION_SERVICE = UUID.from_16_bits(0x1846, 'Coordinated Set Identification')
GATT_DEVICE_TIME_SERVICE                    = UUID.from_16_bits(0x1847, 'Device Time')
GATT_MEDIA_CONTROL_SERVICE                  = UUID.from_16_bits(0x1848, 'Media Control')
GATT_GENERIC_MEDIA_CONTROL_SERVICE          = UUID.from_16_bits(0x1849, 'Generic Media Control')
GATT_CONSTANT_TONE_EXTENSION_SERVICE        = UUID.from_16_bits(0x184A, 'Constant Tone Extension')
GATT_TELEPHONE_BEARER_SERVICE               = UUID.from_16_bits(0x184B, 'Telephone Bearer')
GATT_GENERIC_TELEPHONE_BEARER_SERVICE       = UUID.from_16_bits(0x184C, 'Generic Telephone Bearer')
GATT_MICROPHONE_CONTROL_SERVICE             = UUID.from_16_bits(0x184D, 'Microphone Control')
GATT_AUDIO_STREAM_CONTROL_SERVICE           = UUID.from_16_bits(0x184E, 'Audio Stream Control')
GATT_BROADCAST_AUDIO_SCAN_SERVICE           = UUID.from_16_bits(0x184F, 'Broadcast Audio Scan')
GATT_PUBLISHED_AUDIO_CAPABILITIES_SERVICE   = UUID.from_16_bits(0x1850, 'Published Audio Capabilities')
GATT_BASIC_AUDIO_ANNOUNCEMENT_SERVICE       = UUID.from_16_bits(0x1851, 'Basic Audio Announcement')
GATT_BROADCAST_AUDIO_ANNOUNCEMENT_SERVICE   = UUID.from_16_bits(0x1852, 'Broadcast Audio Announcement')
GATT_COMMON_AUDIO_SERVICE                   = UUID.from_16_bits(0x1853, 'Common Audio')
GATT_HEARING_ACCESS_SERVICE                 = UUID.from_16_bits(0x1854, 'Hearing Access')
GATT_TELEPHONY_AND_MEDIA_AUDIO_SERVICE      = UUID.from_16_bits(0x1855, 'Telephony and Media Audio')
GATT_PUBLIC_BROADCAST_ANNOUNCEMENT_SERVICE  = UUID.from_16_bits(0x1856, 'Public Broadcast Announcement')
GATT_ELECTRONIC_SHELF_LABEL_SERVICE         = UUID.from_16_bits(0X1857, 'Electronic Shelf Label')
GATT_GAMING_AUDIO_SERVICE                   = UUID.from_16_bits(0x1858, 'Gaming Audio')
GATT_MESH_PROXY_SOLICITATION_SERVICE        = UUID.from_16_bits(0x1859, 'Mesh Audio Solicitation')

# Attribute Types
GATT_PRIMARY_SERVICE_ATTRIBUTE_TYPE   = UUID.from_16_bits(0x2800, 'Primary Service')
GATT_SECONDARY_SERVICE_ATTRIBUTE_TYPE = UUID.from_16_bits(0x2801, 'Secondary Service')
GATT_INCLUDE_ATTRIBUTE_TYPE           = UUID.from_16_bits(0x2802, 'Include')
GATT_CHARACTERISTIC_ATTRIBUTE_TYPE    = UUID.from_16_bits(0x2803, 'Characteristic')

# Descriptors
GATT_CHARACTERISTIC_EXTENDED_PROPERTIES_DESCRIPTOR   = UUID.from_16_bits(0x2900, 'Characteristic Extended Properties')
GATT_CHARACTERISTIC_USER_DESCRIPTION_DESCRIPTOR      = UUID.from_16_bits(0x2901, 'Characteristic User Description')
GATT_CLIENT_CHARACTERISTIC_CONFIGURATION_DESCRIPTOR  = UUID.from_16_bits(0x2902, 'Client Characteristic Configuration')
GATT_SERVER_CHARACTERISTIC_CONFIGURATION_DESCRIPTOR  = UUID.from_16_bits(0x2903, 'Server Characteristic Configuration')
GATT_CHARACTERISTIC_PRESENTATION_FORMAT_DESCRIPTOR   = UUID.from_16_bits(0x2904, 'Characteristic Format')
GATT_CHARACTERISTIC_AGGREGATE_FORMAT_DESCRIPTOR      = UUID.from_16_bits(0x2905, 'Characteristic Aggregate Format')
GATT_VALID_RANGE_DESCRIPTOR                          = UUID.from_16_bits(0x2906, 'Valid Range')
GATT_EXTERNAL_REPORT_DESCRIPTOR                      = UUID.from_16_bits(0x2907, 'External Report')
GATT_REPORT_REFERENCE_DESCRIPTOR                     = UUID.from_16_bits(0x2908, 'Report Reference')
GATT_NUMBER_OF_DIGITALS_DESCRIPTOR                   = UUID.from_16_bits(0x2909, 'Number of Digitals')
GATT_VALUE_TRIGGER_SETTING_DESCRIPTOR                = UUID.from_16_bits(0x290A, 'Value Trigger Setting')
GATT_ENVIRONMENTAL_SENSING_CONFIGURATION_DESCRIPTOR  = UUID.from_16_bits(0x290B, 'Environmental Sensing Configuration')
GATT_ENVIRONMENTAL_SENSING_MEASUREMENT_DESCRIPTOR    = UUID.from_16_bits(0x290C, 'Environmental Sensing Measurement')
GATT_ENVIRONMENTAL_SENSING_TRIGGER_DESCRIPTOR        = UUID.from_16_bits(0x290D, 'Environmental Sensing Trigger Setting')
GATT_TIME_TRIGGER_DESCRIPTOR                         = UUID.from_16_bits(0x290E, 'Time Trigger Setting')
GATT_COMPLETE_BR_EDR_TRANSPORT_BLOCK_DATA_DESCRIPTOR = UUID.from_16_bits(0x290F, 'Complete BR-EDR Transport Block Data')
GATT_OBSERVATION_SCHEDULE_DESCRIPTOR                 = UUID.from_16_bits(0x290F, 'Observation Schedule')
GATT_VALID_RANGE_AND_ACCURACY_DESCRIPTOR             = UUID.from_16_bits(0x290F, 'Valid Range And Accuracy')

# Device Information Service
GATT_SYSTEM_ID_CHARACTERISTIC                          = UUID.from_16_bits(0x2A23, 'System ID')
GATT_MODEL_NUMBER_STRING_CHARACTERISTIC                = UUID.from_16_bits(0x2A24, 'Model Number String')
GATT_SERIAL_NUMBER_STRING_CHARACTERISTIC               = UUID.from_16_bits(0x2A25, 'Serial Number String')
GATT_FIRMWARE_REVISION_STRING_CHARACTERISTIC           = UUID.from_16_bits(0x2A26, 'Firmware Revision String')
GATT_HARDWARE_REVISION_STRING_CHARACTERISTIC           = UUID.from_16_bits(0x2A27, 'Hardware Revision String')
GATT_SOFTWARE_REVISION_STRING_CHARACTERISTIC           = UUID.from_16_bits(0x2A28, 'Software Revision String')
GATT_MANUFACTURER_NAME_STRING_CHARACTERISTIC           = UUID.from_16_bits(0x2A29, 'Manufacturer Name String')
GATT_REGULATORY_CERTIFICATION_DATA_LIST_CHARACTERISTIC = UUID.from_16_bits(0x2A2A, 'IEEE 11073-20601 Regulatory Certification Data List')
GATT_PNP_ID_CHARACTERISTIC                             = UUID.from_16_bits(0x2A50, 'PnP ID')

# Human Interface Device Service
GATT_HID_INFORMATION_CHARACTERISTIC   = UUID.from_16_bits(0x2A4A, 'HID Information')
GATT_REPORT_MAP_CHARACTERISTIC        = UUID.from_16_bits(0x2A4B, 'Report Map')
GATT_HID_CONTROL_POINT_CHARACTERISTIC = UUID.from_16_bits(0x2A4C, 'HID Control Point')
GATT_REPORT_CHARACTERISTIC            = UUID.from_16_bits(0x2A4D, 'Report')
GATT_PROTOCOL_MODE_CHARACTERISTIC     = UUID.from_16_bits(0x2A4E, 'Protocol Mode')

# Heart Rate Service
GATT_HEART_RATE_MEASUREMENT_CHARACTERISTIC   = UUID.from_16_bits(0x2A37, 'Heart Rate Measurement')
GATT_BODY_SENSOR_LOCATION_CHARACTERISTIC     = UUID.from_16_bits(0x2A38, 'Body Sensor Location')
GATT_HEART_RATE_CONTROL_POINT_CHARACTERISTIC = UUID.from_16_bits(0x2A39, 'Heart Rate Control Point')

# Battery Service
GATT_BATTERY_LEVEL_CHARACTERISTIC = UUID.from_16_bits(0x2A19, 'Battery Level')

# Telephony And Media Audio Service (TMAS)
GATT_TMAP_ROLE_CHARACTERISTIC = UUID.from_16_bits(0x2B51, 'TMAP Role')

# Audio Input Control Service (AICS)
GATT_AUDIO_INPUT_STATE_CHARACTERISTIC         = UUID.from_16_bits(0x2B77, 'Audio Input State')
GATT_GAIN_SETTINGS_ATTRIBUTE_CHARACTERISTIC   = UUID.from_16_bits(0x2B78, 'Gain Settings Attribute')
GATT_AUDIO_INPUT_TYPE_CHARACTERISTIC          = UUID.from_16_bits(0x2B79, 'Audio Input Type')
GATT_AUDIO_INPUT_STATUS_CHARACTERISTIC        = UUID.from_16_bits(0x2B7A, 'Audio Input Status')
GATT_AUDIO_INPUT_CONTROL_POINT_CHARACTERISTIC = UUID.from_16_bits(0x2B7B, 'Audio Input Control Point')
GATT_AUDIO_INPUT_DESCRIPTION_CHARACTERISTIC   = UUID.from_16_bits(0x2B7C, 'Audio Input Description')

# Volume Control Service (VCS)
GATT_VOLUME_STATE_CHARACTERISTIC                = UUID.from_16_bits(0x2B7D, 'Volume State')
GATT_VOLUME_CONTROL_POINT_CHARACTERISTIC        = UUID.from_16_bits(0x2B7E, 'Volume Control Point')
GATT_VOLUME_FLAGS_CHARACTERISTIC                = UUID.from_16_bits(0x2B7F, 'Volume Flags')

# Volume Offset Control Service (VOCS)
GATT_VOLUME_OFFSET_STATE_CHARACTERISTIC         = UUID.from_16_bits(0x2B80, 'Volume Offset State')
GATT_AUDIO_LOCATION_CHARACTERISTIC              = UUID.from_16_bits(0x2B81, 'Audio Location')
GATT_VOLUME_OFFSET_CONTROL_POINT_CHARACTERISTIC = UUID.from_16_bits(0x2B82, 'Volume Offset Control Point')
GATT_AUDIO_OUTPUT_DESCRIPTION_CHARACTERISTIC    = UUID.from_16_bits(0x2B83, 'Audio Output Description')

# Coordinated Set Identification Service (CSIS)
GATT_SET_IDENTITY_RESOLVING_KEY_CHARACTERISTIC  = UUID.from_16_bits(0x2B84, 'Set Identity Resolving Key')
GATT_COORDINATED_SET_SIZE_CHARACTERISTIC        = UUID.from_16_bits(0x2B85, 'Coordinated Set Size')
GATT_SET_MEMBER_LOCK_CHARACTERISTIC             = UUID.from_16_bits(0x2B86, 'Set Member Lock')
GATT_SET_MEMBER_RANK_CHARACTERISTIC             = UUID.from_16_bits(0x2B87, 'Set Member Rank')

# Media Control Service (MCS)
GATT_MEDIA_PLAYER_NAME_CHARACTERISTIC                     = UUID.from_16_bits(0x2B93, 'Media Player Name')
GATT_MEDIA_PLAYER_ICON_OBJECT_ID_CHARACTERISTIC           = UUID.from_16_bits(0x2B94, 'Media Player Icon Object ID')
GATT_MEDIA_PLAYER_ICON_URL_CHARACTERISTIC                 = UUID.from_16_bits(0x2B95, 'Media Player Icon URL')
GATT_TRACK_CHANGED_CHARACTERISTIC                         = UUID.from_16_bits(0x2B96, 'Track Changed')
GATT_TRACK_TITLE_CHARACTERISTIC                           = UUID.from_16_bits(0x2B97, 'Track Title')
GATT_TRACK_DURATION_CHARACTERISTIC                        = UUID.from_16_bits(0x2B98, 'Track Duration')
GATT_TRACK_POSITION_CHARACTERISTIC                        = UUID.from_16_bits(0x2B99, 'Track Position')
GATT_PLAYBACK_SPEED_CHARACTERISTIC                        = UUID.from_16_bits(0x2B9A, 'Playback Speed')
GATT_SEEKING_SPEED_CHARACTERISTIC                         = UUID.from_16_bits(0x2B9B, 'Seeking Speed')
GATT_CURRENT_TRACK_SEGMENTS_OBJECT_ID_CHARACTERISTIC      = UUID.from_16_bits(0x2B9C, 'Current Track Segments Object ID')
GATT_CURRENT_TRACK_OBJECT_ID_CHARACTERISTIC               = UUID.from_16_bits(0x2B9D, 'Current Track Object ID')
GATT_NEXT_TRACK_OBJECT_ID_CHARACTERISTIC                  = UUID.from_16_bits(0x2B9E, 'Next Track Object ID')
GATT_PARENT_GROUP_OBJECT_ID_CHARACTERISTIC                = UUID.from_16_bits(0x2B9F, 'Parent Group Object ID')
GATT_CURRENT_GROUP_OBJECT_ID_CHARACTERISTIC               = UUID.from_16_bits(0x2BA0, 'Current Group Object ID')
GATT_PLAYING_ORDER_CHARACTERISTIC                         = UUID.from_16_bits(0x2BA1, 'Playing Order')
GATT_PLAYING_ORDERS_SUPPORTED_CHARACTERISTIC              = UUID.from_16_bits(0x2BA2, 'Playing Orders Supported')
GATT_MEDIA_STATE_CHARACTERISTIC                           = UUID.from_16_bits(0x2BA3, 'Media State')
GATT_MEDIA_CONTROL_POINT_CHARACTERISTIC                   = UUID.from_16_bits(0x2BA4, 'Media Control Point')
GATT_MEDIA_CONTROL_POINT_OPCODES_SUPPORTED_CHARACTERISTIC = UUID.from_16_bits(0x2BA5, 'Media Control Point Opcodes Supported')
GATT_SEARCH_RESULTS_OBJECT_ID_CHARACTERISTIC              = UUID.from_16_bits(0x2BA6, 'Search Results Object ID')
GATT_SEARCH_CONTROL_POINT_CHARACTERISTIC                  = UUID.from_16_bits(0x2BA7, 'Search Control Point')
GATT_CONTENT_CONTROL_ID_CHARACTERISTIC                    = UUID.from_16_bits(0x2BBA, 'Content Control Id')

# Telephone Bearer Service (TBS)
GATT_BEARER_PROVIDER_NAME_CHARACTERISTIC                      = UUID.from_16_bits(0x2BB4, 'Bearer Provider Name')
GATT_BEARER_UCI_CHARACTERISTIC                                = UUID.from_16_bits(0x2BB5, 'Bearer UCI')
GATT_BEARER_TECHNOLOGY_CHARACTERISTIC                         = UUID.from_16_bits(0x2BB6, 'Bearer Technology')
GATT_BEARER_URI_SCHEMES_SUPPORTED_LIST_CHARACTERISTIC         = UUID.from_16_bits(0x2BB7, 'Bearer URI Schemes Supported List')
GATT_BEARER_SIGNAL_STRENGTH_CHARACTERISTIC                    = UUID.from_16_bits(0x2BB8, 'Bearer Signal Strength')
GATT_BEARER_SIGNAL_STRENGTH_REPORTING_INTERVAL_CHARACTERISTIC = UUID.from_16_bits(0x2BB9, 'Bearer Signal Strength Reporting Interval')
GATT_BEARER_LIST_CURRENT_CALLS_CHARACTERISTIC                 = UUID.from_16_bits(0x2BBA, 'Bearer List Current Calls')
GATT_CONTENT_CONTROL_ID_CHARACTERISTIC                        = UUID.from_16_bits(0x2BBB, 'Content Control ID')
GATT_STATUS_FLAGS_CHARACTERISTIC                              = UUID.from_16_bits(0x2BBC, 'Status Flags')
GATT_INCOMING_CALL_TARGET_BEARER_URI_CHARACTERISTIC           = UUID.from_16_bits(0x2BBD, 'Incoming Call Target Bearer URI')
GATT_CALL_STATE_CHARACTERISTIC                                = UUID.from_16_bits(0x2BBE, 'Call State')
GATT_CALL_CONTROL_POINT_CHARACTERISTIC                        = UUID.from_16_bits(0x2BBF, 'Call Control Point')
GATT_CALL_CONTROL_POINT_OPTIONAL_OPCODES_CHARACTERISTIC       = UUID.from_16_bits(0x2BC0, 'Call Control Point Optional Opcodes')
GATT_TERMINATION_REASON_CHARACTERISTIC                        = UUID.from_16_bits(0x2BC1, 'Termination Reason')
GATT_INCOMING_CALL_CHARACTERISTIC                             = UUID.from_16_bits(0x2BC2, 'Incoming Call')
GATT_CALL_FRIENDLY_NAME_CHARACTERISTIC                        = UUID.from_16_bits(0x2BC3, 'Call Friendly Name')

# Microphone Control Service (MICS)
GATT_MUTE_CHARACTERISTIC = UUID.from_16_bits(0x2BC3, 'Mute')

# Audio Stream Control Service (ASCS)
GATT_SINK_ASE_CHARACTERISTIC                    = UUID.from_16_bits(0x2BC4, 'Sink ASE')
GATT_SOURCE_ASE_CHARACTERISTIC                  = UUID.from_16_bits(0x2BC5, 'Source ASE')
GATT_ASE_CONTROL_POINT_CHARACTERISTIC           = UUID.from_16_bits(0x2BC6, 'ASE Control Point')

# Broadcast Audio Scan Service (BASS)
GATT_BROADCAST_AUDIO_SCAN_CONTROL_POINT_CHARACTERISTIC = UUID.from_16_bits(0x2BC7, 'Broadcast Audio Scan Control Point')
GATT_BROADCAST_RECEIVE_STATE_CHARACTERISTIC            = UUID.from_16_bits(0x2BC8, 'Broadcast Receive State')

# Published Audio Capabilities Service (PACS)
GATT_SINK_PAC_CHARACTERISTIC                    = UUID.from_16_bits(0x2BC9, 'Sink PAC')
GATT_SINK_AUDIO_LOCATION_CHARACTERISTIC         = UUID.from_16_bits(0x2BCA, 'Sink Audio Location')
GATT_SOURCE_PAC_CHARACTERISTIC                  = UUID.from_16_bits(0x2BCB, 'Source PAC')
GATT_SOURCE_AUDIO_LOCATION_CHARACTERISTIC       = UUID.from_16_bits(0x2BCC, 'Source Audio Location')
GATT_AVAILABLE_AUDIO_CONTEXTS_CHARACTERISTIC    = UUID.from_16_bits(0x2BCD, 'Available Audio Contexts')
GATT_SUPPORTED_AUDIO_CONTEXTS_CHARACTERISTIC    = UUID.from_16_bits(0x2BCE, 'Supported Audio Contexts')

# ASHA Service
GATT_ASHA_SERVICE                             = UUID.from_16_bits(0xFDF0, 'Audio Streaming for Hearing Aid')
GATT_ASHA_READ_ONLY_PROPERTIES_CHARACTERISTIC = UUID('6333651e-c481-4a3e-9169-7c902aad37bb', 'ReadOnlyProperties')
GATT_ASHA_AUDIO_CONTROL_POINT_CHARACTERISTIC  = UUID('f0d4de7e-4a88-476c-9d9f-1937b0996cc0', 'AudioControlPoint')
GATT_ASHA_AUDIO_STATUS_CHARACTERISTIC         = UUID('38663f1a-e711-4cac-b641-326b56404837', 'AudioStatus')
GATT_ASHA_VOLUME_CHARACTERISTIC               = UUID('00e4ca9e-ab14-41e4-8823-f9e70c7e91df', 'Volume')
GATT_ASHA_LE_PSM_OUT_CHARACTERISTIC           = UUID('2d410339-82b6-42aa-b34e-e2e01df8cc1a', 'LE_PSM_OUT')

# Misc
GATT_DEVICE_NAME_CHARACTERISTIC                                = UUID.from_16_bits(0x2A00, 'Device Name')
GATT_APPEARANCE_CHARACTERISTIC                                 = UUID.from_16_bits(0x2A01, 'Appearance')
GATT_PERIPHERAL_PRIVACY_FLAG_CHARACTERISTIC                    = UUID.from_16_bits(0x2A02, 'Peripheral Privacy Flag')
GATT_RECONNECTION_ADDRESS_CHARACTERISTIC                       = UUID.from_16_bits(0x2A03, 'Reconnection Address')
GATT_PERIPHERAL_PREFERRED_CONNECTION_PARAMETERS_CHARACTERISTIC = UUID.from_16_bits(0x2A04, 'Peripheral Preferred Connection Parameters')
GATT_SERVICE_CHANGED_CHARACTERISTIC                            = UUID.from_16_bits(0x2A05, 'Service Changed')
GATT_ALERT_LEVEL_CHARACTERISTIC                                = UUID.from_16_bits(0x2A06, 'Alert Level')
GATT_TX_POWER_LEVEL_CHARACTERISTIC                             = UUID.from_16_bits(0x2A07, 'Tx Power Level')
GATT_BOOT_KEYBOARD_INPUT_REPORT_CHARACTERISTIC                 = UUID.from_16_bits(0x2A22, 'Boot Keyboard Input Report')
GATT_CURRENT_TIME_CHARACTERISTIC                               = UUID.from_16_bits(0x2A2B, 'Current Time')
GATT_BOOT_KEYBOARD_OUTPUT_REPORT_CHARACTERISTIC                = UUID.from_16_bits(0x2A32, 'Boot Keyboard Output Report')
GATT_CENTRAL_ADDRESS_RESOLUTION__CHARACTERISTIC                = UUID.from_16_bits(0x2AA6, 'Central Address Resolution')
GATT_CLIENT_SUPPORTED_FEATURES_CHARACTERISTIC                  = UUID.from_16_bits(0x2B29, 'Client Supported Features')
GATT_DATABASE_HASH_CHARACTERISTIC                              = UUID.from_16_bits(0x2B2A, 'Database Hash')
GATT_SERVER_SUPPORTED_FEATURES_CHARACTERISTIC                  = UUID.from_16_bits(0x2B3A, 'Server Supported Features')

# fmt: on
# pylint: enable=line-too-long


# -----------------------------------------------------------------------------
# Utils
# -----------------------------------------------------------------------------


def show_services(services: Iterable[Service]) -> None:
    for service in services:
        print(color(str(service), 'cyan'))

        for characteristic in service.characteristics:
            print(color('  ' + str(characteristic), 'magenta'))

            for descriptor in characteristic.descriptors:
                print(color('    ' + str(descriptor), 'green'))


# -----------------------------------------------------------------------------
class InvalidServiceError(BaseBumbleError):
    """The service is not compliant with the spec/profile"""


# -----------------------------------------------------------------------------
class Service(Attribute):
    '''
    See Vol 3, Part G - 3.1 SERVICE DEFINITION
    '''

    uuid: UUID
    characteristics: List[Characteristic]
    included_services: List[Service]

    def __init__(
        self,
        uuid: Union[str, UUID],
        characteristics: List[Characteristic],
        primary=True,
        included_services: List[Service] = [],
    ) -> None:
        # Convert the uuid to a UUID object if it isn't already
        if isinstance(uuid, str):
            uuid = UUID(uuid)

        super().__init__(
            (
                GATT_PRIMARY_SERVICE_ATTRIBUTE_TYPE
                if primary
                else GATT_SECONDARY_SERVICE_ATTRIBUTE_TYPE
            ),
            Attribute.READABLE,
            uuid.to_pdu_bytes(),
        )
        self.uuid = uuid
        self.included_services = included_services[:]
        self.characteristics = characteristics[:]
        self.primary = primary

    def get_advertising_data(self) -> Optional[bytes]:
        """
        Get Service specific advertising data
        Defined by each Service, default value is empty
        :return Service data for advertising
        """
        return None

    def __str__(self) -> str:
        return (
            f'Service(handle=0x{self.handle:04X}, '
            f'end=0x{self.end_group_handle:04X}, '
            f'uuid={self.uuid})'
            f'{"" if self.primary else "*"}'
        )


# -----------------------------------------------------------------------------
class TemplateService(Service):
    '''
    Convenience abstract class that can be used by profile-specific subclasses that want
    to expose their UUID as a class property
    '''

    UUID: UUID

    def __init__(
        self,
        characteristics: List[Characteristic],
        primary: bool = True,
        included_services: List[Service] = [],
    ) -> None:
        super().__init__(self.UUID, characteristics, primary, included_services)


# -----------------------------------------------------------------------------
class IncludedServiceDeclaration(Attribute):
    '''
    See Vol 3, Part G - 3.2 INCLUDE DEFINITION
    '''

    service: Service

    def __init__(self, service: Service) -> None:
        declaration_bytes = struct.pack(
            '<HH2s', service.handle, service.end_group_handle, service.uuid.to_bytes()
        )
        super().__init__(
            GATT_INCLUDE_ATTRIBUTE_TYPE, Attribute.READABLE, declaration_bytes
        )
        self.service = service

    def __str__(self) -> str:
        return (
            f'IncludedServiceDefinition(handle=0x{self.handle:04X}, '
            f'group_starting_handle=0x{self.service.handle:04X}, '
            f'group_ending_handle=0x{self.service.end_group_handle:04X}, '
            f'uuid={self.service.uuid})'
        )


# -----------------------------------------------------------------------------
class Characteristic(Attribute):
    '''
    See Vol 3, Part G - 3.3 CHARACTERISTIC DEFINITION
    '''

    uuid: UUID
    properties: Characteristic.Properties

    class Properties(enum.IntFlag):
        """Property flags"""

        BROADCAST = 0x01
        READ = 0x02
        WRITE_WITHOUT_RESPONSE = 0x04
        WRITE = 0x08
        NOTIFY = 0x10
        INDICATE = 0x20
        AUTHENTICATED_SIGNED_WRITES = 0x40
        EXTENDED_PROPERTIES = 0x80

        @classmethod
        def from_string(cls, properties_str: str) -> Characteristic.Properties:
            try:
                return functools.reduce(
                    lambda x, y: x | cls[y],
                    properties_str.replace("|", ",").split(","),
                    Characteristic.Properties(0),
                )
            except (TypeError, KeyError):
                # The check for `p.name is not None` here is needed because for InFlag
                # enums, the .name property can be None, when the enum value is 0,
                # so the type hint for .name is Optional[str].
                enum_list: List[str] = [p.name for p in cls if p.name is not None]
                enum_list_str = ",".join(enum_list)
                raise TypeError(
                    f"Characteristic.Properties::from_string() error:\nExpected a string containing any of the keys, separated by , or |: {enum_list_str}\nGot: {properties_str}"
                )

        def __str__(self) -> str:
            # NOTE: we override this method to offer a consistent result between python
            # versions: the value returned by IntFlag.__str__() changed in version 11.
            return '|'.join(
                flag.name
                for flag in Characteristic.Properties
                if self.value & flag.value and flag.name is not None
            )

    # For backwards compatibility these are defined here
    # For new code, please use Characteristic.Properties.X
    BROADCAST = Properties.BROADCAST
    READ = Properties.READ
    WRITE_WITHOUT_RESPONSE = Properties.WRITE_WITHOUT_RESPONSE
    WRITE = Properties.WRITE
    NOTIFY = Properties.NOTIFY
    INDICATE = Properties.INDICATE
    AUTHENTICATED_SIGNED_WRITES = Properties.AUTHENTICATED_SIGNED_WRITES
    EXTENDED_PROPERTIES = Properties.EXTENDED_PROPERTIES

    def __init__(
        self,
        uuid: Union[str, bytes, UUID],
        properties: Characteristic.Properties,
        permissions: Union[str, Attribute.Permissions],
        value: Union[str, bytes, CharacteristicValue] = b'',
        descriptors: Sequence[Descriptor] = (),
    ):
        super().__init__(uuid, permissions, value)
        self.uuid = self.type
        self.properties = properties
        self.descriptors = descriptors

    def get_descriptor(self, descriptor_type):
        for descriptor in self.descriptors:
            if descriptor.type == descriptor_type:
                return descriptor

        return None

    def has_properties(self, properties: Characteristic.Properties) -> bool:
        return self.properties & properties == properties

    def __str__(self) -> str:
        return (
            f'Characteristic(handle=0x{self.handle:04X}, '
            f'end=0x{self.end_group_handle:04X}, '
            f'uuid={self.uuid}, '
            f'{self.properties})'
        )


# -----------------------------------------------------------------------------
class CharacteristicDeclaration(Attribute):
    '''
    See Vol 3, Part G - 3.3.1 CHARACTERISTIC DECLARATION
    '''

    characteristic: Characteristic

    def __init__(self, characteristic: Characteristic, value_handle: int) -> None:
        declaration_bytes = (
            struct.pack('<BH', characteristic.properties, value_handle)
            + characteristic.uuid.to_pdu_bytes()
        )
        super().__init__(
            GATT_CHARACTERISTIC_ATTRIBUTE_TYPE, Attribute.READABLE, declaration_bytes
        )
        self.value_handle = value_handle
        self.characteristic = characteristic

    def __str__(self) -> str:
        return (
            f'CharacteristicDeclaration(handle=0x{self.handle:04X}, '
            f'value_handle=0x{self.value_handle:04X}, '
            f'uuid={self.characteristic.uuid}, '
            f'{self.characteristic.properties})'
        )


# -----------------------------------------------------------------------------
class CharacteristicValue(AttributeValue):
    """Same as AttributeValue, for backward compatibility"""


# -----------------------------------------------------------------------------
class CharacteristicAdapter:
    '''
    An adapter that can adapt Characteristic and AttributeProxy objects
    by wrapping their `read_value()` and `write_value()` methods with ones that
    return/accept encoded/decoded values.

    For proxies (i.e used by a GATT client), the adaptation is one where the return
    value of `read_value()` is decoded and the value passed to `write_value()` is
    encoded. The `subscribe()` method, is wrapped with one where the values are decoded
    before being passed to the subscriber.

    For local values (i.e hosted by a GATT server) the adaptation is one where the
    return value of `read_value()` is encoded and the value passed to `write_value()`
    is decoded.
    '''

    read_value: Callable
    write_value: Callable

    def __init__(self, characteristic: Union[Characteristic, AttributeProxy]):
        self.wrapped_characteristic = characteristic
        self.subscribers: Dict[Callable, Callable] = (
            {}
        )  # Map from subscriber to proxy subscriber

        if isinstance(characteristic, Characteristic):
            self.read_value = self.read_encoded_value
            self.write_value = self.write_encoded_value
        else:
            self.read_value = self.read_decoded_value
            self.write_value = self.write_decoded_value
            self.subscribe = self.wrapped_subscribe
            self.unsubscribe = self.wrapped_unsubscribe

    def __getattr__(self, name):
        return getattr(self.wrapped_characteristic, name)

    def __setattr__(self, name, value):
        if name in (
            'wrapped_characteristic',
            'subscribers',
            'read_value',
            'write_value',
            'subscribe',
            'unsubscribe',
        ):
            super().__setattr__(name, value)
        else:
            setattr(self.wrapped_characteristic, name, value)

    async def read_encoded_value(self, connection):
        return self.encode_value(
            await self.wrapped_characteristic.read_value(connection)
        )

    async def write_encoded_value(self, connection, value):
        return await self.wrapped_characteristic.write_value(
            connection, self.decode_value(value)
        )

    async def read_decoded_value(self):
        return self.decode_value(await self.wrapped_characteristic.read_value())

    async def write_decoded_value(self, value, with_response=False):
        return await self.wrapped_characteristic.write_value(
            self.encode_value(value), with_response
        )

    def encode_value(self, value):
        return value

    def decode_value(self, value):
        return value

    def wrapped_subscribe(self, subscriber=None):
        if subscriber is not None:
            if subscriber in self.subscribers:
                # We already have a proxy subscriber
                subscriber = self.subscribers[subscriber]
            else:
                # Create and register a proxy that will decode the value
                original_subscriber = subscriber

                def on_change(value):
                    original_subscriber(self.decode_value(value))

                self.subscribers[subscriber] = on_change
                subscriber = on_change

        return self.wrapped_characteristic.subscribe(subscriber)

    def wrapped_unsubscribe(self, subscriber=None):
        if subscriber in self.subscribers:
            subscriber = self.subscribers.pop(subscriber)

        return self.wrapped_characteristic.unsubscribe(subscriber)

    def __str__(self) -> str:
        wrapped = str(self.wrapped_characteristic)
        return f'{self.__class__.__name__}({wrapped})'


# -----------------------------------------------------------------------------
class DelegatedCharacteristicAdapter(CharacteristicAdapter):
    '''
    Adapter that converts bytes values using an encode and a decode function.
    '''

    def __init__(self, characteristic, encode=None, decode=None):
        super().__init__(characteristic)
        self.encode = encode
        self.decode = decode

    def encode_value(self, value):
        return self.encode(value) if self.encode else value

    def decode_value(self, value):
        return self.decode(value) if self.decode else value


# -----------------------------------------------------------------------------
class PackedCharacteristicAdapter(CharacteristicAdapter):
    '''
    Adapter that packs/unpacks characteristic values according to a standard
    Python `struct` format.
    For formats with a single value, the adapted `read_value` and `write_value`
    methods return/accept single values. For formats with multiple values,
    they return/accept a tuple with the same number of elements as is required for
    the format.
    '''

    def __init__(self, characteristic, pack_format):
        super().__init__(characteristic)
        self.struct = struct.Struct(pack_format)

    def pack(self, *values):
        return self.struct.pack(*values)

    def unpack(self, buffer):
        return self.struct.unpack(buffer)

    def encode_value(self, value):
        return self.pack(*value if isinstance(value, tuple) else (value,))

    def decode_value(self, value):
        unpacked = self.unpack(value)
        return unpacked[0] if len(unpacked) == 1 else unpacked


# -----------------------------------------------------------------------------
class MappedCharacteristicAdapter(PackedCharacteristicAdapter):
    '''
    Adapter that packs/unpacks characteristic values according to a standard
    Python `struct` format.
    The adapted `read_value` and `write_value` methods return/accept aa dictionary which
    is packed/unpacked according to format, with the arguments extracted from the
    dictionary by key, in the same order as they occur in the `keys` parameter.
    '''

    def __init__(self, characteristic, pack_format, keys):
        super().__init__(characteristic, pack_format)
        self.keys = keys

    # pylint: disable=arguments-differ
    def pack(self, values):
        return super().pack(*(values[key] for key in self.keys))

    def unpack(self, buffer):
        return dict(zip(self.keys, super().unpack(buffer)))


# -----------------------------------------------------------------------------
class UTF8CharacteristicAdapter(CharacteristicAdapter):
    '''
    Adapter that converts strings to/from bytes using UTF-8 encoding
    '''

    def encode_value(self, value: str) -> bytes:
        return value.encode('utf-8')

    def decode_value(self, value: bytes) -> str:
        return value.decode('utf-8')


# -----------------------------------------------------------------------------
class Descriptor(Attribute):
    '''
    See Vol 3, Part G - 3.3.3 Characteristic Descriptor Declarations
    '''

    def __str__(self) -> str:
        if isinstance(self.value, bytes):
            value_str = self.value.hex()
        elif isinstance(self.value, CharacteristicValue):
            value = self.value.read(None)
            if isinstance(value, bytes):
                value_str = value.hex()
            else:
                value_str = '<async>'
        else:
            value_str = '<...>'
        return (
            f'Descriptor(handle=0x{self.handle:04X}, '
            f'type={self.type}, '
            f'value={value_str})'
        )


# -----------------------------------------------------------------------------
class ClientCharacteristicConfigurationBits(enum.IntFlag):
    '''
    See Vol 3, Part G - 3.3.3.3 - Table 3.11 Client Characteristic Configuration bit
    field definition
    '''

    DEFAULT = 0x0000
    NOTIFICATION = 0x0001
    INDICATION = 0x0002
