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# SPDX-License-Identifier: GPL-3.0-or-later
# Haketilo proxy data and configuration (MappingRef and MappingStore subtypes).
#
# This file is part of Hydrilla&Haketilo.
#
# Copyright (C) 2022 Wojtek Kosior
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
#
# I, Wojtek Kosior, thereby promise not to sue for violation of this
# file's license. Although I request that you do not make use this code
# in a proprietary program, I am not going to enforce this in court.
"""
This module provides an interface to interact with mappings inside Haketilo.
"""
# Enable using with Python 3.7.
from __future__ import annotations
import io
import typing as t
import dataclasses as dc
from ... import item_infos
from .. import state as st
from . import base
@dc.dataclass(frozen=True, unsafe_hash=True)
class ConcreteMappingRef(st.MappingRef):
state: base.HaketiloStateWithFields = dc.field(hash=False, compare=False)
def get_version_display_infos(self) \
-> t.Sequence[st.MappingVersionDisplayInfo]:
with self.state.cursor() as cursor:
cursor.execute(
'''
SELECT
item_version_id,
definition,
repo,
repo_iteration,
installed,
is_active,
is_orphan,
is_local,
enabled
FROM
mapping_display_infos
WHERE
item_id = ?;
''',
(self.id,)
)
rows = cursor.fetchall()
if rows == []:
raise st.MissingItemError()
result = []
for (item_version_id, definition, repo, repo_iteration, installed,
is_active, is_orphan, is_local, status_letter) in rows:
ref = ConcreteMappingVersionRef(str(item_version_id), self.state)
item_info = item_infos.MappingInfo.load(
definition,
repo,
repo_iteration
)
display_info = st.MappingVersionDisplayInfo(
ref = ref,
info = item_info,
installed = st.InstalledStatus(installed),
is_active = is_active,
is_orphan = is_orphan,
is_local = is_local,
mapping_enabled = st.EnabledStatus(status_letter)
)
result.append(display_info)
return sorted(result, key=(lambda di: di.info))
@dc.dataclass(frozen=True)
class ConcreteMappingStore(st.MappingStore):
state: base.HaketiloStateWithFields
def get(self, id: str) -> st.MappingRef:
return ConcreteMappingRef(id, self.state)
def get_display_infos(self) -> t.Sequence[st.MappingDisplayInfo]:
with self.state.cursor() as cursor:
cursor.execute(
'''
SELECT DISTINCT
item_id,
identifier,
CASE WHEN enabled IN ('A', 'E') THEN item_version_id
ELSE NULL END,
CASE WHEN enabled IN ('A', 'E') THEN definition
ELSE NULL END,
CASE WHEN enabled IN ('A', 'E') THEN repo
ELSE NULL END,
CASE WHEN enabled IN ('A', 'E') THEN repo_iteration
ELSE NULL END,
enabled
FROM
mapping_display_infos
WHERE
is_active OR item_version_id IS NULL;
'''
)
rows = cursor.fetchall()
result = []
for (item_id, identifier, item_version_id, definition, repo,
repo_iteration, status_letter) in rows:
ref = ConcreteMappingRef(str(item_id), self.state)
version_ref: t.Optional[st.MappingVersionRef] = None
item_info: t.Optional[item_infos.MappingInfo] = None
if item_version_id is not None:
active_version_ref = ConcreteMappingVersionRef(
id = str(item_version_id),
state = self.state
)
item_info = item_infos.MappingInfo.load(
definition,
repo,
repo_iteration
)
display_info = st.MappingDisplayInfo(
ref = ref,
identifier = identifier,
enabled = st.EnabledStatus(status_letter),
active_version_ref = active_version_ref,
active_version_info = item_info
)
result.append(display_info)
return result
@dc.dataclass(frozen=True, unsafe_hash=True)
class ConcreteMappingVersionRef(st.MappingVersionRef):
state: base.HaketiloStateWithFields = dc.field(hash=False, compare=False)
def update_status(self, new_status: st.EnabledStatus) -> None:
"""...."""
assert new_status != st.EnabledStatus.AUTO_ENABLED
raise NotImplementedError()
def get_display_info(self) -> st.MappingVersionDisplayInfo:
with self.state.cursor() as cursor:
cursor.execute(
'''
SELECT
definition,
repo,
repo_iteration,
installed,
is_orphan,
is_active,
is_local,
enabled
FROM
mapping_display_infos
WHERE
item_version_id = ?;
''',
(self.id,)
)
rows = cursor.fetchall()
if rows == []:
raise st.MissingItemError()
(definition, repo, repo_iteration, installed, is_orphan, is_active,
is_local, status_letter), = rows
item_info = item_infos.MappingInfo.load(
definition,
repo,
repo_iteration
)
return st.MappingVersionDisplayInfo(
ref = self,
info = item_info,
installed = st.InstalledStatus(installed),
is_active = is_active,
is_orphan = is_orphan,
is_local = is_local,
mapping_enabled = st.EnabledStatus(status_letter)
)
@dc.dataclass(frozen=True)
class ConcreteMappingVersionStore(st.MappingVersionStore):
state: base.HaketiloStateWithFields
def get(self, id: str) -> st.MappingVersionRef:
return ConcreteMappingVersionRef(id, self.state)
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