"""두 파이프라인의 잡 테이블
단계별 산출물을 컬럼으로 들고 있음
이미지·오디오·영상은 blob에 올린 뒤 URL만 저장
"""
import uuid
from datetime import datetime

from sqlalchemy import JSON, Boolean, DateTime, Enum, Float, Integer, String, Text, func
from sqlalchemy.orm import Mapped, mapped_column

from models.pipeline_state import PlayreelState, PosterAliveState
from utils.database import Base

URL_LENGTH = 512
TASK_ID_LENGTH = 36


def new_task_id() -> str:
    return str(uuid.uuid4())


def state_column(enum_type):
    return Enum(enum_type, values_callable=lambda e: [member.value for member in e])


class TaskBase(Base):
    """두 테이블이 같이 쓰는 실행 메타
    state는 진행도, status는 그 시점의 실행 상태로 축이 다름
    """
    __abstract__ = True

    id: Mapped[str] = mapped_column(String(TASK_ID_LENGTH), primary_key=True,
                                    default=new_task_id)
    name: Mapped[str] = mapped_column(String(255), default="")
    status: Mapped[str] = mapped_column(String(32), default="queued", index=True)

    # 스테퍼가 그리는 단계별 시각
    # {stage: {"status": ..., "started": ..., "ended": ...}}
    stage_timings: Mapped[dict] = mapped_column(JSON, default=dict)

    error_stage: Mapped[str | None] = mapped_column(String(32))
    error_detail: Mapped[str | None] = mapped_column(Text)

    credits_used: Mapped[float] = mapped_column(Float, default=0.0)

    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(),
                                                 onupdate=func.now())


class PosterAliveTask(TaskBase):
    """포스터 한 장 → 8초 숏폼"""
    __tablename__ = "poster_alive_task"

    state: Mapped[PosterAliveState] = mapped_column(
        state_column(PosterAliveState), default=PosterAliveState.DETECT, index=True)

    # 검수 게이트를 건너뛰고 끝까지 돌린다
    skip_review: Mapped[bool] = mapped_column(Boolean, default=False)

    # 입력
    poster_url: Mapped[str] = mapped_column(String(URL_LENGTH))
    poster_width: Mapped[int | None] = mapped_column(Integer)
    poster_height: Mapped[int | None] = mapped_column(Integer)
    # i2v가 명시적으로 거절하는 하드 게이트
    is_low_resolution: Mapped[bool] = mapped_column(Boolean, default=False)

    # ① detect
    detect_regions: Mapped[dict | None] = mapped_column(JSON)          # Regions
    detect_grid_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    detect_check_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))

    # ② narration_text
    narration_lines: Mapped[list | None] = mapped_column(JSON)         # 3문장
    narration_voice: Mapped[str | None] = mapped_column(String(32))
    bgm_style: Mapped[dict | None] = mapped_column(JSON)               # BgmStyle
    poster_metadata: Mapped[dict | None] = mapped_column(JSON)         # NarrationMetadata

    # ③ motion
    motion_plan: Mapped[dict | None] = mapped_column(JSON)             # MotionPlan

    # ④ tts
    narration_timeline: Mapped[dict | None] = mapped_column(JSON)      # NarrationTimeline
    narration_audio_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))

    # ⑤ bgm
    bgm_audio_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    bgm_task_id: Mapped[str | None] = mapped_column(String(64))
    bgm_target_seconds: Mapped[int | None] = mapped_column(Integer)
    bgm_duration: Mapped[float | None] = mapped_column(Float)

    # ⑥ i2v
    clip_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    clip_model: Mapped[str | None] = mapped_column(String(64))
    clip_credits: Mapped[float | None] = mapped_column(Float)
    title_gate: Mapped[dict | None] = mapped_column(JSON)              # TitleGateVerdict

    # ⑦ render
    video_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    thumbnail_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    video_duration: Mapped[float | None] = mapped_column(Float)
    video_frames: Mapped[int | None] = mapped_column(Integer)
    video_width: Mapped[int | None] = mapped_column(Integer)
    video_height: Mapped[int | None] = mapped_column(Integer)


class PlayreelTask(TaskBase):
    """공연 상품페이지 URL → 30초 롱컷"""
    __tablename__ = "playreel_task"

    state: Mapped[PlayreelState] = mapped_column(
        state_column(PlayreelState), default=PlayreelState.FETCH, index=True)

    # 검수 대기 중인 게이트. 승인하면 비워짐
    gate: Mapped[str | None] = mapped_column(String(32))
    # 최종 승인마다 올라감. 재작업은 새 버전이 됨
    version: Mapped[int] = mapped_column(Integer, default=0)

    # 입력
    source_url: Mapped[str] = mapped_column(String(URL_LENGTH))
    goods_id: Mapped[str] = mapped_column(String(32), index=True)
    slug: Mapped[str] = mapped_column(String(64))

    # ① fetch
    nol_meta: Mapped[dict | None] = mapped_column(JSON)                # NolMeta
    poster_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    # 750px이면 검수 화면이 저해상 경고를 띄운다
    poster_width: Mapped[int | None] = mapped_column(Integer)
    poster_height: Mapped[int | None] = mapped_column(Integer)
    detail_image_urls: Mapped[list | None] = mapped_column(JSON)
    fetch_failed_urls: Mapped[list | None] = mapped_column(JSON)

    # ② split
    # [{name, source, index, y0, y1, tag, url, selected}]
    detail_sections: Mapped[list | None] = mapped_column(JSON)
    section_sheet_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))

    # ③ upscale
    upscaled_poster_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    upscale_credits: Mapped[int | None] = mapped_column(Integer)
    upscale_variant: Mapped[str | None] = mapped_column(String(64))

    # ④ analyze
    analysis_grid_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    movable_elements: Mapped[list | None] = mapped_column(JSON)        # [MotionChoice]
    fixed_layers: Mapped[list | None] = mapped_column(JSON)            # [FixedLayer]
    i2v_model: Mapped[str | None] = mapped_column(String(64))
    has_ip_risk: Mapped[bool | None] = mapped_column(Boolean)
    has_qr: Mapped[bool | None] = mapped_column(Boolean)

    # ⑤ motion
    motion_plan: Mapped[dict | None] = mapped_column(JSON)             # MotionPlan

    # ⑥ narration
    cast_extraction: Mapped[dict | None] = mapped_column(JSON)         # CastExtraction
    narration_lines: Mapped[list | None] = mapped_column(JSON)         # [{slot, text}]

    # ⑦ tts
    narration_timeline: Mapped[dict | None] = mapped_column(JSON)      # NarrationTimeline
    narration_audio_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    narration_voice_id: Mapped[str | None] = mapped_column(String(64))

    # ⑧ bgm
    bgm_audio_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    bgm_task_id: Mapped[str | None] = mapped_column(String(64))
    bgm_target_seconds: Mapped[int | None] = mapped_column(Integer)
    bgm_duration: Mapped[float | None] = mapped_column(Float)

    # ⑨ i2v
    clip_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    clip_frames_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    clip_model: Mapped[str | None] = mapped_column(String(64))
    clip_credits: Mapped[float | None] = mapped_column(Float)
    title_gate: Mapped[dict | None] = mapped_column(JSON)              # TitleGateVerdict

    # ⑩ hybrid
    layer_config: Mapped[dict | None] = mapped_column(JSON)            # LayerConfig
    hybrid_clip_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    hybrid_proof_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    hybrid_frames: Mapped[int | None] = mapped_column(Integer)
    hybrid_duration: Mapped[float | None] = mapped_column(Float)

    # ⑪ compose
    video_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    scene_plan: Mapped[dict | None] = mapped_column(JSON)              # LongcutPlan
    compose_proof_url: Mapped[str | None] = mapped_column(String(URL_LENGTH))
    video_duration: Mapped[float | None] = mapped_column(Float)
    video_frames: Mapped[int | None] = mapped_column(Integer)

    # ⑫ review
    review_checks: Mapped[list | None] = mapped_column(JSON)           # [{key, label, ok}]