Bryan Van Deusen
94 lines
3.1 KiB
Python
94 lines
3.1 KiB
Python
"""Download model - individual download jobs."""
|
|
|
|
from datetime import datetime
|
|
from typing import Optional
|
|
from sqlalchemy import String, Integer, Text, ForeignKey, BigInteger
|
|
from sqlalchemy.dialects.postgresql import JSONB
|
|
from sqlalchemy.orm import Mapped, mapped_column, relationship
|
|
|
|
from app.models.base import Base, TimestampMixin
|
|
|
|
|
|
class DownloadStatus:
|
|
"""Download status constants."""
|
|
PENDING = "pending"
|
|
RUNNING = "running"
|
|
COMPLETED = "completed"
|
|
FAILED = "failed"
|
|
SKIPPED = "skipped"
|
|
|
|
|
|
class ErrorType:
|
|
"""Error type constants matching legacy project."""
|
|
AUTH_ERROR = "auth_error"
|
|
RATE_LIMITED = "rate_limited"
|
|
NOT_FOUND = "not_found"
|
|
ACCESS_DENIED = "access_denied"
|
|
NETWORK_ERROR = "network_error"
|
|
NO_NEW_CONTENT = "no_new_content"
|
|
TIMEOUT = "timeout"
|
|
HTTP_ERROR = "http_error"
|
|
UNSUPPORTED_URL = "unsupported_url"
|
|
UNKNOWN_ERROR = "unknown_error"
|
|
|
|
|
|
class Download(Base, TimestampMixin):
|
|
"""A download represents a single download job for a source."""
|
|
|
|
__tablename__ = "downloads"
|
|
|
|
id: Mapped[int] = mapped_column(primary_key=True)
|
|
source_id: Mapped[Optional[int]] = mapped_column(
|
|
ForeignKey("sources.id", ondelete="SET NULL"), nullable=True, index=True
|
|
)
|
|
url: Mapped[str] = mapped_column(Text, nullable=False)
|
|
|
|
# Status
|
|
status: Mapped[str] = mapped_column(
|
|
String(20), default=DownloadStatus.PENDING, index=True
|
|
)
|
|
error_type: Mapped[Optional[str]] = mapped_column(String(50), nullable=True)
|
|
error_message: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
|
|
|
|
# Results
|
|
file_count: Mapped[int] = mapped_column(Integer, default=0)
|
|
total_size: Mapped[Optional[int]] = mapped_column(BigInteger, nullable=True)
|
|
|
|
# Timing
|
|
started_at: Mapped[Optional[datetime]] = mapped_column(nullable=True)
|
|
completed_at: Mapped[Optional[datetime]] = mapped_column(nullable=True)
|
|
|
|
# Flexible metadata
|
|
metadata_: Mapped[dict] = mapped_column("metadata", JSONB, default=dict)
|
|
|
|
# Relationships
|
|
source: Mapped[Optional["Source"]] = relationship(back_populates="downloads")
|
|
content_items: Mapped[list["ContentItem"]] = relationship(back_populates="download")
|
|
|
|
def __repr__(self) -> str:
|
|
return f"<Download {self.id} ({self.status})>"
|
|
|
|
def to_dict(self) -> dict:
|
|
"""Convert to dictionary for API responses."""
|
|
return {
|
|
"id": self.id,
|
|
"source_id": self.source_id,
|
|
"url": self.url,
|
|
"status": self.status,
|
|
"error_type": self.error_type,
|
|
"error_message": self.error_message,
|
|
"file_count": self.file_count,
|
|
"total_size": self.total_size,
|
|
"started_at": self.started_at.isoformat() if self.started_at else None,
|
|
"completed_at": self.completed_at.isoformat() if self.completed_at else None,
|
|
"metadata": self.metadata_,
|
|
"created_at": self.created_at.isoformat() if self.created_at else None,
|
|
}
|
|
|
|
|
|
# Import for type hints
|
|
from typing import TYPE_CHECKING
|
|
if TYPE_CHECKING:
|
|
from app.models.source import Source
|
|
from app.models.content import ContentItem
|