Implement create_quest_definition business layer (Feature 06, task 2)
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@@ -400,6 +400,37 @@ def _single_weekday_from_csv(value: str | None) -> int:
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) from None
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async def _insert_rule_row(
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database: NestQuestDatabase, storage: ScheduleRuleStorage
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) -> int:
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"""Insert one ``schedule_rules`` row and return its new id.
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Runs inside the caller's transaction (no lock or transaction of its
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own) so a multi-table write can persist the rule together with the
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rows that reference it. The caller is responsible for validating
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the storage fields — :meth:`ScheduleRulesDao.create` validates the
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date shape, and :meth:`QuestDefinitionsDao.create_with_rule_and_windows`
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receives storage already mapped from a validated
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:class:`~.recurrence.ScheduleRule`.
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"""
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result = await database.execute(
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"INSERT INTO schedule_rules (rule_type, interval, weekday_set, "
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"day_of_month, nth_weekday, month, start_date, end_date) "
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"VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
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(
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storage.rule_type,
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storage.interval,
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storage.weekday_set,
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storage.day_of_month,
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storage.nth_weekday,
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storage.month,
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storage.start_date,
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storage.end_date,
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),
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)
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return result.lastrowid
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class ScheduleRulesDao:
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"""Typed async access to the ``schedule_rules`` table."""
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@@ -430,22 +461,20 @@ class ScheduleRulesDao:
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_validate_date(start_date, "start_date")
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if end_date is not None:
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_validate_date(end_date, "end_date")
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result = await self._database.execute(
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"INSERT INTO schedule_rules (rule_type, interval, weekday_set, "
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"day_of_month, nth_weekday, month, start_date, end_date) "
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"VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
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(
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rule_type,
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interval,
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weekday_set,
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day_of_month,
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nth_weekday,
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month,
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start_date,
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end_date,
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rule_id = await _insert_rule_row(
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self._database,
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ScheduleRuleStorage(
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rule_type=rule_type,
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interval=interval,
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weekday_set=weekday_set,
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day_of_month=day_of_month,
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nth_weekday=nth_weekday,
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month=month,
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start_date=start_date,
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end_date=end_date,
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),
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)
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rule = await self.get(result.lastrowid)
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rule = await self.get(rule_id)
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assert rule is not None
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return rule
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@@ -605,6 +634,71 @@ class QuestDefinitionsDao:
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assert definition is not None
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return definition
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async def create_with_rule_and_windows(
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self,
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title: str,
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schedule_rule: ScheduleRuleStorage,
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created_at: str,
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assignee_child_ids: list[int],
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windows: list[tuple[str, str | None]],
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*,
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description: str | None = None,
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icon: str | None = None,
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) -> QuestDefinitionRecord:
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"""Insert a rule, definition, assignees and windows atomically.
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The whole write — the schedule rule row, the definition row,
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every assignee link and every window declaration — runs inside
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ONE transaction under the connection lock, so a validation or
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write failure rolls the lot back together (all-or-nothing): the
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caller can never observe a definition with a missing rule,
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assignee or window, and a rejected create leaves no partial
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rows.
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The rule arrives as pre-validated storage fields (mapped from a
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:class:`~.recurrence.ScheduleRule` via
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:func:`schedule_rule_to_storage`); its dates are re-validated
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here so a hand-built storage can never persist a malformed date.
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The definition-level ``due_time`` column is deliberately left
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NULL — per-window due times supersede it (D-008). Assignees are
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validated as existing-and-active at insert time, and windows are
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validated for name and strict HH:MM due time, matching
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:meth:`upsert_window`.
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"""
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_validate_date(schedule_rule.start_date, "start_date")
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if schedule_rule.end_date is not None:
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_validate_date(schedule_rule.end_date, "end_date")
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async with _connection_lock(self._database):
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async with self._database.transaction():
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for child_id in assignee_child_ids:
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await self._validate_assignable_child(child_id)
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rule_id = await _insert_rule_row(self._database, schedule_rule)
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result = await self._database.execute(
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"INSERT INTO quest_definitions (title, description, "
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"icon, schedule_rule_id, due_time, is_active, "
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"created_at) VALUES (?, ?, ?, ?, ?, ?, ?)",
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(title, description, icon, rule_id, None, 1, created_at),
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)
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definition_id = result.lastrowid
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for child_id in assignee_child_ids:
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await self._database.execute(
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"INSERT INTO quest_definition_assignees "
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"(definition_id, child_id) VALUES (?, ?)",
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(definition_id, child_id),
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)
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for window, due_time in windows:
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_validate_window(window)
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if due_time is not None:
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_validate_time(due_time, "due_time")
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await self._database.execute(
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"INSERT INTO quest_definition_windows "
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"(definition_id, window, due_time) VALUES (?, ?, ?)",
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(definition_id, window, due_time),
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)
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definition = await self.get(definition_id)
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assert definition is not None
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return definition
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async def _validate_rule_exists(self, schedule_rule_id: int) -> None:
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"""Raise ValueError unless the rule exists.
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@@ -0,0 +1,202 @@
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"""Business layer for creating quest definitions (Feature 06).
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Sits between the Feature 09 service gate and the typed
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:class:`~.dao_rules.QuestDefinitionsDao`: callers get validation and the
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all-or-nothing create here, and never touch the DAO SQL directly.
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:func:`create_quest_definition` is the create path; there is no
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permission check here (that is Feature 09).
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Validation policy mirrors :mod:`.children`:
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- ``title`` is required and trimmed; empty or whitespace-only raises
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ValueError.
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- ``rule`` must be an already-validated :class:`~.recurrence.ScheduleRule`
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(its constructor is total — rule validation is NOT re-implemented
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here).
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- ``assignee_child_ids`` is non-empty; every id is a plain int (bools
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and floats rejected, since SQLite would bind them onto a real child)
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and must reference an existing ACTIVE child (the DAO enforces the
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active/exists check inside the same transaction).
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- ``windows`` is non-empty; each entry is a window name from
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:data:`~.const.QUEST_WINDOWS` — either a bare name (no due time) or a
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``(name, due_time)`` pair whose due time is a strict 24-hour HH:MM
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string.
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The rule, definition, assignees and windows are persisted in ONE
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transaction (the DAO's :meth:`~.dao_rules.QuestDefinitionsDao.create_with_rule_and_windows`),
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so a rejected or failed create persists nothing. The definition-level
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``due_time`` column is superseded by per-window due times (D-008) and is
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never set here. ``created_at`` is stamped UTC ISO-8601 at second
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precision, matching :mod:`.children`.
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"""
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from __future__ import annotations
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import datetime
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from dataclasses import dataclass
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from .dao_children import ChildRecord
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from .dao_rules import (
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QuestDefinitionRecord,
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QuestDefinitionWindowRecord,
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QuestDefinitionsDao,
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_validate_time,
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_validate_window,
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schedule_rule_from_storage,
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schedule_rule_to_storage,
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)
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from .db import NestQuestDatabase
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from .recurrence import ScheduleRule
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@dataclass(frozen=True)
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class CreatedQuestDefinition:
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"""The persisted result of :func:`create_quest_definition`.
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``definition`` is the stored row; ``rule`` is the schedule rule
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decoded back through the storage mapping; ``assignees`` and
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``windows`` are the definition's linked child records and window
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declarations, read through the DAO.
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"""
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definition: QuestDefinitionRecord
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rule: ScheduleRule
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assignees: list[ChildRecord]
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windows: list[QuestDefinitionWindowRecord]
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def _now_stamp() -> str:
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"""Return the module's strict UTC second-precision stamp."""
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return datetime.datetime.now(datetime.timezone.utc).isoformat(
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timespec="seconds"
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)
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def _validate_text(
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value: object, field: str, *, required: bool = False
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) -> str | None:
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"""Validate a free-text field and return it trimmed.
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``None`` raises when ``required`` and otherwise returns None. A
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non-string value is rejected; an empty result is rejected for
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required fields.
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"""
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if value is None:
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if required:
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raise ValueError(f"{field} is required")
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return None
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if not isinstance(value, str):
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raise ValueError(f"{field} must be a string, got {value!r}")
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trimmed = value.strip()
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if required and not trimmed:
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raise ValueError(f"{field} is required")
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return trimmed
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def _validate_assignee_ids(value: object) -> list[int]:
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"""Return the assignee ids as plain ints, or raise naming the field.
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The list must be non-empty; each entry must be a real int (bools and
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floats rejected) so SQLite cannot bind ``True`` onto child 1 or a
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float onto a neighbouring profile.
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"""
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if not isinstance(value, (list, tuple)):
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raise ValueError(
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"assignee_child_ids must be a non-empty list of child ids"
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)
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if not value:
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raise ValueError("assignee_child_ids must not be empty")
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ids: list[int] = []
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for entry in value:
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if isinstance(entry, bool) or not isinstance(entry, int):
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raise ValueError(
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"assignee_child_ids must contain integer child ids, "
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f"got {entry!r}"
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)
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ids.append(entry)
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return ids
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def _normalize_windows(
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value: object,
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) -> list[tuple[str, str | None]]:
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"""Normalize the windows argument to ``(name, due_time)`` pairs.
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Each entry is a bare window name (due time None) or a
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``(name, due_time)`` pair. The name must be a
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:data:`~.const.QUEST_WINDOWS` spelling and a present due time must be
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a strict 24-hour HH:MM, both validated up front so a malformed
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window is rejected before any write.
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"""
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if not isinstance(value, (list, tuple)):
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raise ValueError(
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"windows must be a non-empty list of window names or "
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"(name, due_time) pairs"
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)
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if not value:
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raise ValueError("windows must not be empty")
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normalized: list[tuple[str, str | None]] = []
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for index, entry in enumerate(value):
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if isinstance(entry, str):
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name: object = entry
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due_time: object = None
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elif isinstance(entry, (tuple, list)) and len(entry) == 2:
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name, due_time = entry[0], entry[1]
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else:
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raise ValueError(
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f"windows[{index}] must be a window name or a "
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f"(name, due_time) pair, got {entry!r}"
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)
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_validate_window(name)
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if due_time is not None:
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_validate_time(due_time, "due_time")
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normalized.append((name, due_time))
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return normalized
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async def create_quest_definition(
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database: NestQuestDatabase,
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title: str,
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rule: ScheduleRule,
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assignee_child_ids: list[int],
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windows: list[str | tuple[str, str | None]],
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*,
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description: str | None = None,
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icon: str | None = None,
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) -> CreatedQuestDefinition:
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"""Create a quest definition (rule + assignees + windows) atomically.
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Validates the arguments up front, then persists the schedule rule,
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the definition, its assignees and its windows in one transaction via
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the DAO. Returns the stored definition together with its decoded
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rule, assignees and windows. Raises ValueError on any rejected
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argument; a rejected or failed create persists nothing.
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"""
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name = _validate_text(title, "title", required=True)
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assert name is not None
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if not isinstance(rule, ScheduleRule):
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raise ValueError(f"rule must be a ScheduleRule, got {rule!r}")
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assignee_ids = _validate_assignee_ids(assignee_child_ids)
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window_specs = _normalize_windows(windows)
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description_value = _validate_text(description, "description")
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icon_value = _validate_text(icon, "icon")
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storage = schedule_rule_to_storage(rule)
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dao = QuestDefinitionsDao(database)
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definition = await dao.create_with_rule_and_windows(
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name,
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storage,
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_now_stamp(),
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assignee_ids,
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window_specs,
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description=description_value,
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icon=icon_value,
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)
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decoded_rule = schedule_rule_from_storage(storage)
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assignees = await dao.list_assignees(definition.id)
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window_records = await dao.list_windows(definition.id)
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return CreatedQuestDefinition(
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definition=definition,
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rule=decoded_rule,
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assignees=assignees,
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windows=window_records,
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)
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