# SPDX-License-Identifier: AGPL-3.0-or-later
"""FreedomBox app to configure Zoph web application."""

import logging

from django.utils.translation import gettext_lazy as _

from plinth import app as app_module
from plinth import cfg, frontpage, menu
from plinth.config import DropinConfigs
from plinth.daemon import SharedDaemon
from plinth.modules.apache.components import Webserver
from plinth.modules.backups.components import BackupRestore
from plinth.modules.firewall.components import Firewall
from plinth.package import Packages
from plinth.utils import format_lazy

from . import manifest, privileged

logger = logging.getLogger(__name__)

_description = [
    format_lazy(
        _('Zoph manages your photo collection. Photos are stored on your '
          '{box_name}, under your control. Instead of focusing on galleries '
          'for public display, Zoph focuses on managing them for your own '
          'use, organizing them by who took them, where they were taken, '
          'and who is in them. Photos can be linked to multiple hierarchical '
          'albums and categories. It is easy to find all photos containing a '
          'person, or photos taken on a date, or photos taken at a location '
          'using search, map and calendar views. Individual photos can be '
          'shared with others by sending a direct link.'),
        box_name=_(cfg.box_name)),
    format_lazy(
        _('The {box_name} user who setup Zoph will also become the '
          'administrator in Zoph. For additional users, accounts must be '
          'created both in {box_name} and in Zoph with the same user name.'),
        box_name=_(cfg.box_name))
]


class ZophApp(app_module.App):
    """FreedomBox app for Zoph."""

    app_id = 'zoph'

    _version = 2

    configure_when_disabled = False

    def __init__(self) -> None:
        """Create components for the app."""
        super().__init__()

        info = app_module.Info(app_id=self.app_id, version=self._version,
                               name=_('Zoph'), icon_filename='zoph',
                               description=_description, manual_page='Zoph',
                               clients=manifest.clients, tags=manifest.tags)
        self.add(info)

        menu_item = menu.Menu('menu-zoph', info.name, info.icon_filename,
                              info.tags, 'zoph:index', parent_url_name='apps')
        self.add(menu_item)

        shortcut = frontpage.Shortcut('shortcut-zoph', info.name,
                                      icon=info.icon_filename, url='/zoph/',
                                      clients=info.clients, tags=info.tags,
                                      login_required=True)
        self.add(shortcut)

        packages = Packages('packages-zoph', ['zoph', 'default-mysql-server'],
                            conflicts=['libpam-tmpdir'],
                            conflicts_action=Packages.ConflictsAction.REMOVE)
        self.add(packages)

        firewall = Firewall('firewall-zoph', info.name,
                            ports=['http', 'https'], is_external=True)
        self.add(firewall)

        dropin_configs = DropinConfigs('dropin-configs-zoph', [
            '/etc/apache2/conf-available/zoph-freedombox.conf',
        ])
        self.add(dropin_configs)

        webserver = Webserver('webserver-zoph', 'zoph',
                              urls=['https://{host}/zoph/'])
        self.add(webserver)

        webserver = Webserver('webserver-zoph-freedombox', 'zoph-freedombox')
        self.add(webserver)

        daemon = SharedDaemon('shared-daemon-zoph-mysql', 'mysql')
        self.add(daemon)

        backup_restore = ZophBackupRestore('backup-restore-zoph',
                                           **manifest.backup)
        self.add(backup_restore)

    def setup(self, old_version):
        """Install and configure the app."""
        privileged.pre_install()
        with self.get_component('shared-daemon-zoph-mysql').ensure_running():
            # Database needs to be running for successful initialization or
            # upgrade of zoph database.
            super().setup(old_version)

        privileged.setup()
        if not old_version:
            self.enable()
        elif old_version < 2:
            if self.get_component('webserver-zoph').is_enabled():
                self.enable()

    def uninstall(self):
        """De-configure and uninstall the app."""
        # Before package uninstall, so that config file is still available
        privileged.uninstall()
        super().uninstall()


class ZophBackupRestore(BackupRestore):
    """Component to backup/restore Zoph database"""

    def backup_pre(self, packet):
        """Save database contents."""
        super().backup_pre(packet)
        privileged.dump_database()

    def restore_post(self, packet):
        """Restore database contents."""
        super().restore_post(packet)
        privileged.restore_database()
