79 lines
2.7 KiB
Python
79 lines
2.7 KiB
Python
from datetime import datetime, timezone
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from typing import Any
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from sqlalchemy import CheckConstraint, ForeignKey, Index, JSON, String, Text
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from sqlalchemy.ext.mutable import MutableList
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.extensions import db
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TASK_STATUSES = ("not_started", "in_progress", "done")
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TASK_PRIORITIES = ("urgent", "important", "normal")
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class Task(db.Model):
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__table_args__ = (
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CheckConstraint(
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"status IN ('not_started', 'in_progress', 'done')",
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name="ck_task_status",
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),
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CheckConstraint(
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"priority IN ('urgent', 'important', 'normal')",
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name="ck_task_priority",
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),
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Index(
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"ix_task_owner_visibility_status_due",
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"user_id",
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"cleared_at",
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"status",
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"due_date",
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),
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)
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id: Mapped[int] = mapped_column(primary_key=True)
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title: Mapped[str] = mapped_column(String(200))
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description: Mapped[str | None] = mapped_column(Text)
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status: Mapped[str] = mapped_column(String(20), default="not_started")
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priority: Mapped[str] = mapped_column(String(20), default="normal")
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created_at: Mapped[datetime] = mapped_column(
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default=lambda: datetime.now(timezone.utc)
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)
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due_date: Mapped[datetime | None]
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completed_at: Mapped[datetime | None]
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cleared_at: Mapped[datetime | None]
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clear_batch_id: Mapped[str | None] = mapped_column(String(36), index=True)
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user_id: Mapped[int] = mapped_column(
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ForeignKey("user.id", ondelete="CASCADE"), index=True
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)
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# Stored now so Phase 3 can add timers and chunking without reshaping CRUD.
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timer_seconds: Mapped[int] = mapped_column(default=0)
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context: Mapped[str | None] = mapped_column(String(100))
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chunk_sessions: Mapped[list[Any]] = mapped_column(
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MutableList.as_mutable(JSON), default=list
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)
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subtasks: Mapped[list["Subtask"]] = relationship(
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back_populates="task",
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cascade="all, delete-orphan",
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order_by="Subtask.id",
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)
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@property
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def progress_percentage(self) -> int:
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if not self.subtasks:
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return 100 if self.status == "done" else 0
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completed = sum(subtask.completed for subtask in self.subtasks)
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return round(completed / len(self.subtasks) * 100)
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class Subtask(db.Model):
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id: Mapped[int] = mapped_column(primary_key=True)
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title: Mapped[str] = mapped_column(String(100))
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completed: Mapped[bool] = mapped_column(default=False)
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task_id: Mapped[int] = mapped_column(
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ForeignKey("task.id", ondelete="CASCADE"), index=True
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)
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task: Mapped[Task] = relationship(back_populates="subtasks")
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