video-accessibility/backend/app/models/job.py
Vadym Samoilenko 31199f8705 chore: push all session changes — backend hardening, tests, apache config, deploy scripts
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-30 15:52:14 +01:00

290 lines
12 KiB
Python

from datetime import datetime
from enum import Enum
from typing import Any, Literal
from pydantic import BaseModel, Field, constr
FailureStep = Literal["ingestion", "ai_processing", "translation", "tts", "render"]
class JobStatus(str, Enum):
CREATED = "created"
INGESTING = "ingesting"
AI_PROCESSING = "ai_processing"
PENDING_QC = "pending_qc"
APPROVED_ENGLISH = "approved_english" # For English source videos
APPROVED_SOURCE = "approved_source" # For non-English source videos
REJECTED = "rejected"
QC_FEEDBACK = "qc_feedback"
TRANSLATING = "translating"
TTS_GENERATING = "tts_generating"
TTS_FAILED = "tts_failed" # legacy: use PROCESSING_FAILED + failure.step="tts" for new failures
RENDERING_VIDEO = "rendering_video" # Accessible video rendering in progress
RENDER_FAILED = "render_failed" # legacy: use PROCESSING_FAILED + failure.step="render" for new failures
PROCESSING_FAILED = "processing_failed" # unified failure status; see Job.failure for step details
RENDERING_QC = "rendering_qc" # Re-rendering accessible video during QC review
PENDING_FINAL_REVIEW = "pending_final_review"
COMPLETED = "completed"
@classmethod
def is_approved(cls, status: str) -> bool:
"""Check if status indicates source approval (any language)"""
return status in [cls.APPROVED_ENGLISH.value, cls.APPROVED_SOURCE.value]
class JobFailure(BaseModel):
step: FailureStep
type: str
message: str
retriable: bool = True
occurred_at: datetime
retry_count: int = 0
class Source(BaseModel):
filename: str
original_filename: str | None = None
gcs_uri: str
duration_s: float | None = None
language: constr(min_length=2, max_length=10) = "en" # Final source language (from detection or explicit)
language_hint: str | None = None # User-provided hint for non-English videos
detected_language: str | None = None # AI-detected language from Gemini
class TTSPreferences(BaseModel):
"""TTS voice preferences for audio description generation"""
provider: Literal["gemini", "google", "elevenlabs"] = "gemini"
default_voice: str = "Kore" # Default Gemini voice
voices_per_language: dict[str, str] = {} # {"en": "Kore", "es": "Aoede"}
# TTS quality and style settings
model: Literal["flash", "pro"] = "flash" # flash = fast/cheap, pro = higher quality
speed: float = Field(default=1.0, ge=0.5, le=2.0) # Speech rate multiplier
style_preset: Literal[
"neutral", "calm", "energetic", "professional", "warm", "documentary", "custom"
] = "neutral"
custom_style_prompt: str | None = None # Used when style_preset is "custom"
# ElevenLabs-specific settings
stability: float | None = None # 0.0-1.0, default 0.5 when used
similarity_boost: float | None = None # 0.0-1.0, default 0.5 when used
class RequestedOutputs(BaseModel):
captions_vtt: bool = True
audio_description_vtt: bool = True
audio_description_mp3: bool = True
accessible_video_mp4: bool = False # Rendered video with embedded audio descriptions
accessible_video_method: Literal["overlay", "pause_insert"] | None = None # User-selected method
sdh_vtt: bool = False # SDH (Subtitles for Deaf and Hard of Hearing) captions with speaker labels, sound effects, music notation
languages: list[str] = []
transcreation: list[str] = []
tts_preferences: TTSPreferences | None = None
translation_mode: Literal["traditional", "video_native"] = "video_native"
class PausePointData(BaseModel):
"""Pause point timing data for accessible video editing during QC."""
cue_index: int # AD cue index this pause point belongs to
original_ms: float # Rendered timeline position (ms) - for UI display
source_ms: float | None = None # Source video cut point (ms) - for re-rendering (None = use original_ms)
adjusted_ms: float | None = None # User-adjusted timestamp (ms), None = use original
min_bound_ms: float # Minimum allowed value (end of previous AD segment)
max_bound_ms: float # Maximum allowed value (start of next AD segment)
class VideoSegmentMetadata(BaseModel):
"""Metadata for a video segment between pause points."""
segment_index: int # 0-based segment index
start_ms: float # Start timestamp in source video (ms)
end_ms: float # End timestamp in source video (ms)
gcs_uri: str # GCS path to segment MP4
duration_ms: float # Actual segment duration (ms)
is_freeze_frame: bool = False # True if this is a freeze frame segment with AD audio
cue_index: int | None = None # AD cue index (only for freeze frame segments)
class TTSRegenerationRequest(BaseModel):
"""Request to regenerate TTS for a specific cue during QC."""
cue_index: int
requested_at: datetime
new_text: str | None = None # If provided, use this text instead of current VTT
status: Literal["pending", "processing", "completed", "failed"] = "pending"
error_message: str | None = None
class AccessibleVideoEditState(BaseModel):
"""Editable state for accessible video during QC review."""
pause_points: list[PausePointData] = []
video_segments: list[VideoSegmentMetadata] = []
tts_regeneration_queue: list[TTSRegenerationRequest] = []
last_render_at: datetime | None = None
whisper_refine_enabled: bool = False # Default: off (user enables if cue positions changed)
class LangOutput(BaseModel):
captions_vtt_gcs: str | None = None
sdh_captions_vtt_gcs: str | None = None # SDH-format captions (speaker labels, sound effects, music)
ad_vtt_gcs: str | None = None
ad_mp3_gcs: str | None = None
# Accessible video outputs
accessible_video_gcs: str | None = None # Rendered accessible MP4
accessible_video_method: Literal["overlay", "pause_insert"] | None = None
retimed_captions_vtt_gcs: str | None = None # Re-timed captions for pause-insert method
ad_cues_gcs_prefix: str | None = None # GCS path prefix for per-cue MP3 segments
ad_cue_manifest: list[dict] | None = None # Per-cue manifest: [{cue_index, gcs_uri, text, duration_s}]
# QC editing state for accessible video
video_segments_gcs_prefix: str | None = None # GCS prefix for persisted video segments
accessible_video_edit_state: AccessibleVideoEditState | None = None
origin: Literal["translate", "transcreate", "gemini_translate", "video_native"] | None = None
qa_notes: str | None = None
descriptive_transcript_gcs: str | None = None # WCAG-compliant combined speech+description transcript
class ReviewHistoryItem(BaseModel):
at: datetime
status: str
by: str | None = None
notes: str | None = None
class Review(BaseModel):
notes: str | None = ""
reviewer_id: str | None = None
history: list[ReviewHistoryItem] = []
# ── Per-language QC ───────────────────────────────────────────────────────────
class LanguageQCStatus(str, Enum):
PENDING = "pending"
IN_PROGRESS = "in_progress" # linguist is working
PENDING_REVIEW = "pending_review" # linguist submitted, awaiting reviewer
IN_REVIEW = "in_review" # reviewer has opened it
APPROVED = "approved"
REJECTED = "rejected"
class LanguageQCEvent(BaseModel):
at: datetime
actor_user_id: str
actor_email: str
action: Literal[
"assign", "reassign",
"reviewer_assigned", "reviewer_reassigned",
"start_work", "submit_for_review", "open_review",
"approve", "reject", "reopen",
"comment_added",
]
notes: str | None = None
previous_assignee_id: str | None = None
class LanguageQCComment(BaseModel):
id: str
author_id: str
author_name: str
author_email: str
body: str
created_at: datetime
class LanguageQCState(BaseModel):
status: LanguageQCStatus = LanguageQCStatus.PENDING
# Linguist slot
assigned_linguist_id: str | None = None
assigned_linguist_email: str | None = None
assigned_linguist_name: str | None = None
assigned_at: datetime | None = None
assigned_by_user_id: str | None = None
submitted_for_review_at: datetime | None = None
linguist_deadline: datetime | None = None # when linguist must submit
# Reviewer slot
assigned_reviewer_id: str | None = None
assigned_reviewer_email: str | None = None
assigned_reviewer_name: str | None = None
assigned_reviewer_at: datetime | None = None
review_started_at: datetime | None = None
reviewer_deadline: datetime | None = None # when reviewer must decide
# Reviewer progress
total_cues: int | None = None # set when reviewer opens the job
reviewed_cues: int = 0 # incremented as reviewer marks cues reviewed
# Final outcome
reviewed_at: datetime | None = None
reviewed_by_user_id: str | None = None
reviewed_by_email: str | None = None
notes: str | None = None
reject_category: str | None = None # e.g. timing/mistranslation/terminology/profanity/length
history: list[LanguageQCEvent] = []
comments: list[LanguageQCComment] = []
class QCAssignment(BaseModel):
"""Denormalized for efficient per-linguist queue queries."""
lang: str
linguist_id: str
status: LanguageQCStatus
class AISection(BaseModel):
ingestion_json: dict[str, Any] | None = None
confidence: float | None = None
class AccessibleVideoProgressItem(BaseModel):
"""Progress tracking for accessible video rendering per language."""
status: Literal["pending", "rendering", "completed", "failed"] = "pending"
method: Literal["overlay", "pause_insert"] | None = None
error_message: str | None = None
started_at: datetime | None = None
completed_at: datetime | None = None
class Job(BaseModel):
id: str | None = Field(None, alias="_id")
client_id: str
title: str
source: Source
requested_outputs: RequestedOutputs
status: JobStatus = JobStatus.CREATED
review: Review = Review()
outputs: dict[str, LangOutput] | None = None
accessible_video_progress: dict[str, AccessibleVideoProgressItem] | None = None
ai: AISection | None = None
error: dict[str, Any] | None = None
failure: JobFailure | None = None # structured failure info; see failure.step for pipeline stage
retry_count: int = 0 # total number of manual retries attempted
tts_rewrites: list[dict[str, Any]] | None = None # Track auto-rewritten TTS cues
project_id: str | None = None # Platform project this job belongs to (Client → Project → Job)
organization_id: str | None = None # org-tenant ID; backfilled by 2026-04-28-000003 migration
brief_id: str | None = None # JobBrief that originated this job (W-12)
gcs_prefix: str | None = None # GCS path prefix; None = legacy flat {job_id}/ layout
initial_linguist_id: str | None = None
initial_reviewer_id: str | None = None
brand_context: str | None = None # Brand names present in the video for accurate product identification
cost_tracker_project_id: str | None = None # External project ID for AI cost attribution
deadline: datetime | None = None # job-level PM deadline (overdue if past and not completed)
language_qc: dict[str, LanguageQCState] = {} # per-language QC state, keyed by lang code
qc_assignments: list[QCAssignment] = [] # denormalized for linguist-queue queries
created_at: datetime | None = None
updated_at: datetime | None = None
class Config:
populate_by_name = True
use_enum_values = True
class JobCreate(BaseModel):
title: str
source_is_english: bool = True # True = English source, False = other language (auto-detect)
language_hint: str | None = None # Optional hint when source_is_english=False
requested_outputs: RequestedOutputs
brand_context: str | None = None # Comma-separated brand names present in the video (e.g. "Sellotape, Coca-Cola")
class JobUpdate(BaseModel):
title: str | None = None
status: JobStatus | None = None
review: Review | None = None
outputs: dict[str, LangOutput] | None = None
ai: AISection | None = None
error: dict[str, Any] | None = None
deadline: datetime | None = None