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57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
"""``tiktok.comments`` I/O contracts.
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URL-only: given TikTok video URLs, return each video's public comment thread.
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Unlike profile-video/general-search feeds, ``/api/comment/list`` is served to
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anonymous sessions once the comments panel opens, so this verb is reliable. Each
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result is a :class:`CommentItem` (top-level comments; replies carry ``repliesToId``).
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"""
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from __future__ import annotations
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from pydantic import BaseModel, Field
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from app.capabilities.core.validation import HttpUrlStr
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from app.capabilities.tiktok.scrape.schemas import (
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MAX_TIKTOK_ITEMS,
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MAX_TIKTOK_SOURCES,
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)
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from app.proprietary.platforms.tiktok import CommentItem
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class CommentsInput(BaseModel):
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video_urls: list[HttpUrlStr] = Field(
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min_length=1,
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max_length=MAX_TIKTOK_SOURCES,
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description="TikTok video URLs (/@<user>/video/<id>) to pull comments from.",
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)
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comments_per_video: int = Field(
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default=20,
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ge=1,
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le=MAX_TIKTOK_ITEMS,
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description="Max comments to return per video.",
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)
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max_items: int = Field(
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default=20,
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ge=1,
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le=MAX_TIKTOK_ITEMS,
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description="Max total comments to return across all videos.",
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)
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@property
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def estimated_units(self) -> int:
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"""Worst-case billable comments for the pre-flight gate: ``max_items`` is a
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hard cross-video ceiling (le=100), so no call can exceed it."""
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return self.max_items
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class CommentsOutput(BaseModel):
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items: list[CommentItem] = Field(
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default_factory=list,
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description="One item per comment returned, in emission order.",
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)
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@property
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def billable_units(self) -> int:
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"""One returned comment = one billable unit; ErrorItems (``errorCode`` set,
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for bad URLs or empty/withheld videos) are surfaced but never charged."""
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return sum(1 for item in self.items if not getattr(item, "errorCode", None))
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