2 from __future__ import annotations
3 from sqlite3 import Row
4 from plomtask.db import DatabaseConnection
5 from plomtask.days import Day
6 from plomtask.processes import Process
7 from plomtask.conditions import Condition
8 from plomtask.exceptions import (NotFoundException, BadFormatException,
13 """Individual actionable."""
15 # pylint: disable=too-many-instance-attributes
17 def __init__(self, id_: int | None, process: Process,
18 is_done: bool, day: Day) -> None:
20 self.process = process
21 self._is_done = is_done
23 self.children: list[Todo] = []
24 self.parents: list[Todo] = []
25 self.conditions: list[Condition] = []
26 self.fulfills: list[Condition] = []
27 self.undoes: list[Condition] = []
29 self.conditions = process.conditions[:]
30 self.fulfills = process.fulfills[:]
31 self.undoes = process.undoes[:]
34 def from_table_row(cls, db_conn: DatabaseConnection, row: Row) -> Todo:
35 """Make Todo from database row, write to DB cache."""
36 todo = cls(id_=row[0],
37 process=Process.by_id(db_conn, row[1]),
39 day=Day.by_date(db_conn, row[3]))
40 assert todo.id_ is not None
41 db_conn.cached_todos[todo.id_] = todo
45 def by_id(cls, db_conn: DatabaseConnection, id_: int | None) -> Todo:
46 """Get Todo of .id_=id_ and children (from DB cache if possible)."""
47 if id_ in db_conn.cached_todos.keys():
48 todo = db_conn.cached_todos[id_]
51 for row in db_conn.exec('SELECT * FROM todos WHERE id = ?',
53 todo = cls.from_table_row(db_conn, row)
56 raise NotFoundException(f'Todo of ID not found: {id_}')
57 for row in db_conn.exec('SELECT child FROM todo_children '
58 'WHERE parent = ?', (id_,)):
59 todo.children += [cls.by_id(db_conn, row[0])]
60 for row in db_conn.exec('SELECT parent FROM todo_children '
61 'WHERE child = ?', (id_,)):
62 todo.parents += [cls.by_id(db_conn, row[0])]
63 for row in db_conn.exec('SELECT condition FROM todo_conditions '
64 'WHERE todo = ?', (id_,)):
65 todo.conditions += [Condition.by_id(db_conn, row[0])]
66 for row in db_conn.exec('SELECT condition FROM todo_fulfills '
67 'WHERE todo = ?', (id_,)):
68 todo.fulfills += [Condition.by_id(db_conn, row[0])]
69 for row in db_conn.exec('SELECT condition FROM todo_undoes '
70 'WHERE todo = ?', (id_,)):
71 todo.undoes += [Condition.by_id(db_conn, row[0])]
72 assert isinstance(todo, Todo)
76 def by_date(cls, db_conn: DatabaseConnection, date: str) -> list[Todo]:
77 """Collect all Todos for Day of date."""
79 for row in db_conn.exec('SELECT id FROM todos WHERE day = ?', (date,)):
80 todos += [cls.by_id(db_conn, row[0])]
84 def enablers_for_at(cls, db_conn: DatabaseConnection, condition: Condition,
85 date: str) -> list[Todo]:
86 """Collect all Todos of day that enable condition."""
88 for row in db_conn.exec('SELECT todo FROM todo_fulfills '
89 'WHERE condition = ?', (condition.id_,)):
90 todo = cls.by_id(db_conn, row[0])
91 if todo.day.date == date:
96 def disablers_for_at(cls, db_conn: DatabaseConnection,
97 condition: Condition, date: str) -> list[Todo]:
98 """Collect all Todos of day that disable condition."""
100 for row in db_conn.exec('SELECT todo FROM todo_undoes '
101 'WHERE condition = ?', (condition.id_,)):
102 todo = cls.by_id(db_conn, row[0])
103 if todo.day.date == date:
108 def is_doable(self) -> bool:
109 """Decide whether .is_done settable based on children, Conditions."""
110 for child in self.children:
111 if not child.is_done:
113 for condition in self.conditions:
114 if not condition.is_active:
119 def is_done(self) -> bool:
120 """Wrapper around self._is_done so we can control its setter."""
124 def is_done(self, value: bool) -> None:
125 if value != self.is_done and not self.is_doable:
126 raise BadFormatException('cannot change doneness of undoable Todo')
127 if self._is_done != value:
128 self._is_done = value
130 for condition in self.fulfills:
131 condition.is_active = True
132 for condition in self.undoes:
133 condition.is_active = False
135 def set_undoes(self, db_conn: DatabaseConnection, ids: list[int]) -> None:
136 """Set self.undoes to Conditions identified by ids."""
137 self.set_conditions(db_conn, ids, 'undoes')
139 def set_fulfills(self, db_conn: DatabaseConnection,
140 ids: list[int]) -> None:
141 """Set self.fulfills to Conditions identified by ids."""
142 self.set_conditions(db_conn, ids, 'fulfills')
144 def set_conditions(self, db_conn: DatabaseConnection, ids: list[int],
145 target: str = 'conditions') -> None:
146 """Set self.[target] to Conditions identified by ids."""
147 target_list = getattr(self, target)
148 while len(target_list) > 0:
151 target_list += [Condition.by_id(db_conn, id_)]
153 def add_child(self, child: Todo) -> None:
154 """Add child to self.children, guard against recursion"""
155 def walk_steps(node: Todo) -> None:
156 if node.id_ == self.id_:
157 raise BadFormatException('bad child choice causes recursion')
158 for child in node.children:
161 raise HandledException('Can only add children to saved Todos.')
162 if child.id_ is None:
163 raise HandledException('Can only add saved children to Todos.')
164 if child in self.children:
165 raise BadFormatException('cannot adopt same child twice')
167 self.children += [child]
168 child.parents += [self]
170 def save(self, db_conn: DatabaseConnection) -> None:
171 """Write self and children to DB and its cache."""
172 if self.process.id_ is None:
173 raise NotFoundException('Process of Todo without ID (not saved?)')
174 cursor = db_conn.exec('REPLACE INTO todos VALUES (?,?,?,?)',
175 (self.id_, self.process.id_,
176 self.is_done, self.day.date))
177 self.id_ = cursor.lastrowid
178 assert self.id_ is not None
179 db_conn.cached_todos[self.id_] = self
180 db_conn.exec('DELETE FROM todo_children WHERE parent = ?',
182 for child in self.children:
183 db_conn.exec('INSERT INTO todo_children VALUES (?, ?)',
184 (self.id_, child.id_))
185 db_conn.exec('DELETE FROM todo_fulfills WHERE todo = ?', (self.id_,))
186 for condition in self.fulfills:
187 if condition.id_ is None:
188 raise NotFoundException('Fulfilled Condition of Todo '
189 'without ID (not saved?)')
190 db_conn.exec('INSERT INTO todo_fulfills VALUES (?, ?)',
191 (self.id_, condition.id_))
192 db_conn.exec('DELETE FROM todo_undoes WHERE todo = ?', (self.id_,))
193 for condition in self.undoes:
194 if condition.id_ is None:
195 raise NotFoundException('Undone Condition of Todo '
196 'without ID (not saved?)')
197 db_conn.exec('INSERT INTO todo_undoes VALUES (?, ?)',
198 (self.id_, condition.id_))
199 db_conn.exec('DELETE FROM todo_conditions WHERE todo = ?', (self.id_,))
200 for condition in self.conditions:
201 if condition.id_ is None:
202 raise NotFoundException('Condition of Todo '
203 'without ID (not saved?)')
204 db_conn.exec('INSERT INTO todo_conditions VALUES (?, ?)',
205 (self.id_, condition.id_))