# This file is part of Gajim.
#
# SPDX-License-Identifier: GPL-3.0-only

from __future__ import annotations

import logging
import time

from gi.repository import Gdk
from gi.repository import GObject
from gi.repository import Gtk
from nbxmpp import JID
from nbxmpp.namespaces import Namespace
from nbxmpp.structs import DiscoInfo
from nbxmpp.structs import MucSubject

from gajim.common import app
from gajim.common.const import AvatarSize
from gajim.common.const import RFC5646_LANGUAGE_TAGS
from gajim.common.const import XmppUriQuery
from gajim.common.i18n import _
from gajim.common.i18n import p_
from gajim.common.modules.contacts import GroupchatContact
from gajim.common.util.muc import get_groupchat_name
from gajim.common.util.uri import open_uri

from gajim.gtk.builder import get_builder
from gajim.gtk.contact_name_widget import ContactNameWidget
from gajim.gtk.util import make_href_markup

log = logging.getLogger('gajim.gtk.groupchat_info')

MUC_FEATURES = {
    'muc_open': (
        'feather-globe-symbolic',
        p_('Group chat feature', 'Open'),
        _('Anyone can join this group chat')),
    'muc_membersonly': (
        'feather-user-check-symbolic',
        p_('Group chat feature', 'Members Only'),
        _('This group chat is restricted '
          'to members only')),
    'muc_nonanonymous': (
        'feather-eye-symbolic',
        p_('Group chat feature', 'Not Anonymous'),
        _('All other group chat participants '
          'can see your XMPP address')),
    'muc_semianonymous': (
        'feather-eye-off-symbolic',
        p_('Group chat feature', 'Semi-Anonymous'),
        _('Only moderators can see your XMPP address')),
    'muc_moderated': (
        'feather-mic-off-symbolic',
        p_('Group chat feature', 'Moderated'),
        _('Participants entering this group chat need '
          'to request permission to send messages')),
    'muc_unmoderated': (
        'feather-mic-symbolic',
        p_('Group chat feature', 'Not Moderated'),
        _('Participants entering this group chat are '
          'allowed to send messages')),
    'muc_public': (
        'lucide-megaphone-symbolic',
        p_('Group chat feature', 'Public'),
        _('Group chat can be found via search')),
    'muc_hidden': (
        'lucide-megaphone-off-symbolic',
        p_('Group chat feature', 'Hidden'),
        _('This group chat can not be found via search')),
    'muc_passwordprotected': (
        'feather-lock-symbolic',
        p_('Group chat feature', 'Password Required'),
        _('This group chat '
          'does require a password upon entry')),
    'muc_unsecured': (
        'feather-unlock-symbolic',
        p_('Group chat feature', 'No Password Required'),
        _('This group chat does not require '
          'a password upon entry')),
    'muc_persistent': (
        'feather-hard-drive-symbolic',
        p_('Group chat feature', 'Persistent'),
        _('This group chat persists '
          'even if there are no participants')),
    'muc_temporary': (
        'feather-clock-symbolic',
        p_('Group chat feature', 'Temporary'),
        _('This group chat will be destroyed '
          'once the last participant left')),
    'mam': (
        'feather-server-symbolic',
        p_('Group chat feature', 'Archiving'),
        _('Messages are archived on the server')),
}


class GroupChatInfoScrolled(Gtk.ScrolledWindow):

    __gsignals__ = {
        'name-updated': (GObject.SignalFlags.RUN_LAST, None, (str,)),
    }

    def __init__(self,
                 account: str | None = None,
                 width: int = 300,
                 minimal: bool = False,
                 edit_mode: bool = False
                 ) -> None:
        Gtk.ScrolledWindow.__init__(self)
        self.set_size_request(width, -1)
        self.set_halign(Gtk.Align.CENTER)

        self._minimal = minimal

        if minimal:
            self.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.NEVER)
        else:
            self.set_vexpand(True)
            self.set_hexpand(True)
            self.set_propagate_natural_width(True)
            self.set_min_content_height(400)
            self.set_policy(Gtk.PolicyType.NEVER,
                            Gtk.PolicyType.AUTOMATIC)

        self._account = account
        self._contact: GroupchatContact | None = None
        self._info: DiscoInfo | None = None

        self._ui = get_builder('groupchat_info_scrolled.ui')
        self.add(self._ui.info_grid)
        self._ui.connect_signals(self)

        self._contact_name_widget = ContactNameWidget(edit_mode=edit_mode)
        self._contact_name_widget.connect('name-updated', self._on_contact_name_updated)

        self._ui.name_box.add(self._contact_name_widget)

        self.show_all()

    def get_account(self) -> str | None:
        return self._account

    def set_account(self, account: str) -> None:
        self._account = account

    def get_jid(self) -> JID | None:
        if self._contact is not None:
            return self._contact.jid
        return self._info.jid

    def set_subject(self, muc_subject: MucSubject | None) -> None:
        if muc_subject is None:
            return

        author = muc_subject.author
        has_author = bool(author)
        if has_author and muc_subject.timestamp is not None:
            time_ = time.strftime('%c', time.localtime(muc_subject.timestamp))
            author = f'{muc_subject.author} - {time_}'

        self._ui.author.set_text(author or '')
        self._ui.author.set_visible(has_author)
        self._ui.author_label.set_visible(has_author)

        has_subject = bool(muc_subject.text)
        self._ui.subject.set_markup(make_href_markup(muc_subject.text))
        self._ui.subject.set_visible(has_subject)
        self._ui.subject_label.set_visible(has_subject)

    def set_info_from_contact(self, contact: GroupchatContact) -> None:
        self._contact = contact

        self._contact_name_widget.set_contact(contact)

        disco_info = contact.get_disco()
        if disco_info is not None:
            self.set_from_disco_info(disco_info)
            return

        self._ui.address.set_text(str(contact.jid))
        self._ui.address.set_tooltip_text(str(contact.jid))
        self._ui.address_copy_button.set_sensitive(True)

    def set_from_disco_info(self, info: DiscoInfo) -> None:
        self._info = info
        # Set name
        if self._account is None:
            name = info.muc_name
        else:
            client = app.get_client(self._account)
            name = get_groupchat_name(client, info.jid)
            contact = client.get_module('Contacts').get_contact(
                info.jid, groupchat=True)
            surface = contact.get_avatar(
                AvatarSize.GROUP_INFO,
                self.get_scale_factor())
            self._ui.avatar_image.set_from_surface(surface)

        self._contact_name_widget.update_displayed_name(name or '')

        # Set description
        has_desc = bool(info.muc_description)
        self._ui.description.set_markup(make_href_markup(info.muc_description))
        self._ui.description.set_visible(has_desc)
        self._ui.description_label.set_visible(has_desc)

        # Set address
        self._ui.address.set_text(str(info.jid))
        self._ui.address.set_tooltip_text(str(info.jid))
        self._ui.address_copy_button.set_sensitive(True)

        if self._minimal:
            return

        # Set user
        has_users = info.muc_users is not None
        self._ui.users.set_text(info.muc_users or '')
        self._ui.users.set_visible(has_users)
        self._ui.users_image.set_visible(has_users)

        # Set contacts
        self._ui.contact_box.foreach(self._ui.contact_box.remove)
        has_contacts = bool(info.muc_contacts)
        if has_contacts:
            for contact in info.muc_contacts:
                try:
                    jid = JID.from_string(contact).new_as_bare()
                except Exception as e:
                    log.debug('Bad MUC contact address %s: %s', contact, str(e))
                else:
                    self._ui.contact_box.add(self._get_contact_button(jid))

        self._ui.contact_box.set_visible(has_contacts)
        self._ui.contact_label.set_visible(has_contacts)

        # Set discussion logs
        has_log_uri = bool(info.muc_log_uri)
        self._ui.logs.set_uri(info.muc_log_uri or '')
        self._ui.logs.set_label(_('Website'))
        self._ui.logs.set_visible(has_log_uri)
        self._ui.logs_label.set_visible(has_log_uri)

        # Set room language
        has_lang = bool(info.muc_lang)
        lang = ''
        if has_lang:
            lang = RFC5646_LANGUAGE_TAGS.get(info.muc_lang, info.muc_lang)
        self._ui.lang.set_text(lang)
        self._ui.lang.set_visible(has_lang)
        self._ui.lang_image.set_visible(has_lang)

        self._add_features(info.features)

    def enable_edit_mode(self) -> None:
        self._contact_name_widget.enable_edit_mode()

    def _on_contact_name_updated(self, _widget: ContactNameWidget, name: str) -> None:
        self.emit('name-updated', name)

    def _add_features(self, features: list[str]) -> None:
        grid = self._ui.info_grid
        for row in range(30, 9, -1):
            # Remove everything from row 30 to 10
            # We probably will never have 30 rows and
            # there is no method to count grid rows
            grid.remove_row(row)
        features = list(features)

        if Namespace.MAM_2 in features:
            features.append('mam')

        row = 10

        for feature in MUC_FEATURES:
            if feature in features:
                icon, name, tooltip = MUC_FEATURES.get(feature,
                                                       (None, None, None))
                if icon is None:
                    continue
                grid.attach(self._get_feature_icon(icon, tooltip), 0, row, 1, 1)
                grid.attach(self._get_feature_label(name), 1, row, 1, 1)
                row += 1
        grid.show_all()

    def _on_copy_address(self, _button: Gtk.Button) -> None:
        if self._contact is not None:
            jid = self._contact.jid
        else:
            jid = self._info.jid
        clipboard = Gtk.Clipboard.get(Gdk.SELECTION_CLIPBOARD)
        clipboard.set_text(jid.to_iri(XmppUriQuery.JOIN.value), -1)

    @staticmethod
    def _on_activate_log_link(button: Gtk.LinkButton) -> int:
        open_uri(button.get_uri())
        return Gdk.EVENT_STOP

    def _on_activate_contact_link(self, button: Gtk.LinkButton) -> int:
        open_uri(button.get_uri(), account=self._account)
        return Gdk.EVENT_STOP

    @staticmethod
    def _on_activate_subject_link(_label: Gtk.Label, uri: str) -> int:
        # We have to use this, because the default GTK handler
        # is not cross-platform compatible
        open_uri(uri)
        return Gdk.EVENT_STOP

    @staticmethod
    def _get_feature_icon(icon: str, tooltip: str) -> Gtk.Image:
        image = Gtk.Image.new_from_icon_name(icon, Gtk.IconSize.MENU)
        image.set_valign(Gtk.Align.CENTER)
        image.set_halign(Gtk.Align.END)
        image.set_tooltip_text(tooltip)
        return image

    @staticmethod
    def _get_feature_label(text: str) -> Gtk.Label:
        label = Gtk.Label(label=text, use_markup=True)
        label.set_halign(Gtk.Align.START)
        label.set_valign(Gtk.Align.START)
        return label

    def _get_contact_button(self, contact: JID) -> Gtk.Button:
        button = Gtk.LinkButton(contact.to_iri(XmppUriQuery.MESSAGE.value),
                                label=str(contact))
        button.set_halign(Gtk.Align.START)
        button.get_style_context().add_class('link-button')
        button.connect('activate-link', self._on_activate_contact_link)
        button.show()
        return button
