"""爆款视频任务 SQLAlchemy 仓储实现。"""

from datetime import datetime, timezone

from sqlalchemy.orm import Session

from packages.adapters.sqlalchemy_impl.models import (
    ViralVideoJobModel,
    ViralVideoPromptTemplateModel,
    ViralVideoStyleTemplateModel,
)
from packages.domain.viral_video import ViralVideoJob, ViralVideoStatus


def _to_domain(model: ViralVideoJobModel) -> ViralVideoJob:
    """ORM → 领域实体。"""
    return ViralVideoJob(
        id=model.id,
        user_id=model.user_id,
        images=list(model.images or []),
        industry=model.industry or "",
        target_customer=model.target_customer or "",
        persona_id=model.persona_id or "",
        viral_structure=model.viral_structure or "",
        marketing_purpose=model.marketing_purpose or "",
        bgm_preference=model.bgm_preference or "",
        duration=model.duration or 15,
        user_copy_text=model.user_copy_text or "",
        fusion_level=model.fusion_level or "ai_polish",
        reference_audio_path=model.reference_audio_path or "",
        reference_video_url=getattr(model, "reference_video_url", "") or "",
        style_strength=getattr(model, "style_strength", "medium") or "medium",
        style_guide=dict(model.style_guide) if model.style_guide else None,
        style_template_id=getattr(model, "style_template_id", "") or "",
        voice_id=getattr(model, "voice_id", "") or "",
        voice_source=getattr(model, "voice_source", "") or "",
        video_ratio=getattr(model, "video_ratio", "9:16") or "9:16",
        video_model=getattr(model, "video_model", "") or "",
        status=ViralVideoStatus(model.status) if model.status else ViralVideoStatus.PENDING,
        intent_result=dict(model.intent_result) if model.intent_result else None,
        image_analysis=dict(model.image_analysis) if getattr(model, "image_analysis", None) else None,
        storyboard=list(model.storyboard) if getattr(model, "storyboard", None) else None,
        generated_copy_text=getattr(model, "generated_copy_text", "") or "",
        copy_result=dict(model.copy_result) if getattr(model, "copy_result", None) else None,
        result_video_url=model.result_video_url or "",
        credits_cost=model.credits_cost or 0,
        error_msg=model.error_msg or "",
        retry_count=model.retry_count or 0,
        started_at=model.started_at,
        completed_at=model.completed_at,
        created_at=model.created_at,
        updated_at=model.updated_at,
    )


class SQLAlchemyViralVideoJobRepository:
    """爆款视频任务仓储。"""

    def __init__(self, session: Session):
        self.session = session

    def save(self, job: ViralVideoJob) -> ViralVideoJob:
        model = ViralVideoJobModel(
            id=job.id,
            user_id=job.user_id,
            images=job.images,
            industry=job.industry,
            target_customer=job.target_customer,
            persona_id=job.persona_id,
            viral_structure=job.viral_structure,
            marketing_purpose=job.marketing_purpose,
            bgm_preference=job.bgm_preference,
            duration=job.duration,
            user_copy_text=job.user_copy_text,
            fusion_level=job.fusion_level,
            reference_audio_path=job.reference_audio_path,
            reference_video_url=job.reference_video_url,
            style_strength=job.style_strength,
            style_guide=job.style_guide,
            style_template_id=job.style_template_id,
            voice_id=job.voice_id,
            voice_source=job.voice_source,
            video_ratio=job.video_ratio,
            video_model=job.video_model,
            status=job.status,
            intent_result=job.intent_result,
            image_analysis=job.image_analysis,
            storyboard=job.storyboard,
            generated_copy_text=job.generated_copy_text,
            copy_result=job.copy_result,
            result_video_url=job.result_video_url,
            credits_cost=job.credits_cost,
            error_msg=job.error_msg,
            retry_count=job.retry_count,
            started_at=job.started_at,
            completed_at=job.completed_at,
            created_at=job.created_at,
            updated_at=job.updated_at,
        )
        self.session.add(model)
        self.session.commit()
        return job

    def update(self, job: ViralVideoJob) -> None:
        model = self.session.query(ViralVideoJobModel).filter(ViralVideoJobModel.id == job.id).first()
        if model is None:
            raise ValueError(f"ViralVideoJob {job.id} not found")
        model.status = job.status
        model.intent_result = job.intent_result
        model.image_analysis = job.image_analysis
        model.storyboard = job.storyboard
        model.generated_copy_text = job.generated_copy_text or ""
        model.copy_result = job.copy_result
        model.result_video_url = job.result_video_url
        model.credits_cost = job.credits_cost
        model.error_msg = job.error_msg
        model.retry_count = job.retry_count
        model.started_at = job.started_at
        model.completed_at = job.completed_at
        model.style_guide = job.style_guide
        # v1.5 three-stage: persist user-editable params so resume uses latest values
        model.user_copy_text = job.user_copy_text
        model.industry = job.industry
        model.target_customer = job.target_customer
        model.persona_id = job.persona_id
        model.viral_structure = job.viral_structure
        model.marketing_purpose = job.marketing_purpose
        model.bgm_preference = job.bgm_preference
        model.duration = job.duration
        model.fusion_level = job.fusion_level
        model.reference_audio_path = job.reference_audio_path
        model.reference_video_url = job.reference_video_url
        model.style_strength = job.style_strength
        model.style_template_id = job.style_template_id
        model.voice_id = job.voice_id or ""
        model.voice_source = job.voice_source or ""
        model.video_ratio = job.video_ratio or "9:16"
        model.video_model = job.video_model or ""
        model.updated_at = datetime.now(timezone.utc)
        self.session.commit()

    def get(self, job_id: str) -> ViralVideoJob | None:
        model = self.session.query(ViralVideoJobModel).filter(ViralVideoJobModel.id == job_id).first()
        if model is None:
            return None
        return _to_domain(model)

    def list_by_user(self, user_id: str, limit: int = 50, offset: int = 0) -> list[ViralVideoJob]:
        models = (
            self.session.query(ViralVideoJobModel)
            .filter(ViralVideoJobModel.user_id == user_id)
            .order_by(ViralVideoJobModel.created_at.desc())
            .offset(offset)
            .limit(limit)
            .all()
        )
        return [_to_domain(m) for m in models]

    def count_pending_by_user(self, user_id: str) -> int:
        return (
            self.session.query(ViralVideoJobModel)
            .filter(
                ViralVideoJobModel.user_id == user_id,
                ViralVideoJobModel.status.in_(
                    ["pending", "running", "wait_user_confirm", "image_analyzed", "copy_generated"]
                ),
            )
            .count()
        )


class SQLAlchemyViralVideoStyleTemplateRepository:
    """风格模板仓储。"""

    def __init__(self, session: Session):
        self.session = session

    def list_all(self) -> list[dict]:
        models = (
            self.session.query(ViralVideoStyleTemplateModel)
            .order_by(ViralVideoStyleTemplateModel.sort_order.asc())
            .all()
        )
        return [
            {
                "id": m.id,
                "name": m.name,
                "description": m.description or "",
                "thumbnail_url": m.thumbnail_url or "",
                "style_config": dict(m.style_config) if m.style_config else {},
                "is_system": m.is_system,
            }
            for m in models
        ]

    def get(self, template_id: str) -> dict | None:
        model = (
            self.session.query(ViralVideoStyleTemplateModel)
            .filter(ViralVideoStyleTemplateModel.id == template_id)
            .first()
        )
        if model is None:
            return None
        return {
            "id": model.id,
            "name": model.name,
            "description": model.description or "",
            "thumbnail_url": model.thumbnail_url or "",
            "style_config": dict(model.style_config) if model.style_config else {},
            "is_system": model.is_system,
        }


class SQLAlchemyViralVideoPromptTemplateRepository:
    """Prompt 模板仓储（由 #2040 seed，这里只读取）。"""

    def __init__(self, session: Session):
        self.session = session

    def get_active_by_type(self, prompt_type: str) -> dict | None:
        model = (
            self.session.query(ViralVideoPromptTemplateModel)
            .filter(
                ViralVideoPromptTemplateModel.prompt_type == prompt_type,
                ViralVideoPromptTemplateModel.is_active.is_(True),
            )
            .order_by(ViralVideoPromptTemplateModel.version.desc())
            .first()
        )
        if model is None:
            return None
        return {
            "id": model.id,
            "prompt_type": model.prompt_type,
            "name": model.name,
            "content": model.content,
            "variables": list(model.variables or []),
            "version": model.version,
        }