aboutsummaryrefslogtreecommitdiff
path: root/src/hydrilla/proxy/state_impl/mappings.py
blob: 5e31814763e46c794b85f7551c2eec3e9fc1eabd (about) (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
# 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 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.MappingDisplayInfo:
        with self.state.cursor() as cursor:
            cursor.execute(
                '''
                SELECT
                        enabled,
                        definition,
                        repo,
                        repo_iteration,
                        is_orphan
                FROM
                        mapping_display_infos
                WHERE
                        item_version_id = ?;
                ''',
                (self.id,)
            )

            rows = cursor.fetchall()

        if rows == []:
            raise st.MissingItemError()

        (status_letter, definition, repo, repo_iteration, is_orphan), = rows

        item_info = item_infos.MappingInfo.load(
            io.StringIO(definition),
            repo,
            repo_iteration
        )

        status = st.EnabledStatus(status_letter)

        return st.MappingDisplayInfo(self, item_info, status, is_orphan)


@dc.dataclass(frozen=True)
class ConcreteMappingVersionStore(st.MappingVersionStore):
    state: base.HaketiloStateWithFields

    def get(self, id: str) -> st.MappingVersionRef:
        return ConcreteMappingVersionRef(id, self.state)

    def get_display_infos(self) -> t.Iterable[st.MappingDisplayInfo]:
        with self.state.cursor() as cursor:
            cursor.execute(
                '''
                SELECT
                        enabled,
                        item_version_id,
                        definition,
                        repo,
                        repo_iteration,
                        is_orphan
                FROM
                        mapping_display_infos;
                '''
            )

            all_rows = cursor.fetchall()

        result = []

        for row in all_rows:
            (status_letter, item_version_id, definition, repo, repo_iteration,
             is_orphan) = row

            ref = ConcreteMappingVersionRef(str(item_version_id), self.state)

            item_info = item_infos.MappingInfo.load(
                io.StringIO(definition),
                repo,
                repo_iteration
            )

            status = st.EnabledStatus(status_letter)

            info = st.MappingDisplayInfo(ref, item_info, status, is_orphan)
            result.append(info)

        return result