"""Research Workbench SQLAlchemy models."""
import uuid
from datetime import datetime
from sqlalchemy import Column, String, Float, Integer, DateTime, Boolean, ForeignKey, Text, JSON
from sqlalchemy.orm import relationship
import app.database.models as models

Base = models.Base


def new_id():
    return str(uuid.uuid4())


class Project(Base):
    __tablename__ = "projects"

    id = Column(String, primary_key=True, default=new_id)
    title = Column(String, nullable=False)
    goal = Column(String, nullable=True)
    current_direction = Column(String, nullable=True)
    status = Column(String, default="active")  # active, paused, completed
    last_active_at = Column(DateTime, nullable=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    intents = relationship("Intent", back_populates="project")


class Intent(Base):
    __tablename__ = "intents"

    id = Column(String, primary_key=True, default=new_id)
    project_id = Column(String, ForeignKey("projects.id"), nullable=False)
    intent_type = Column(String, nullable=False)  # LiteratureTracking, Writing, ReviewRebuttal
    title = Column(String, nullable=False)
    goal = Column(String, nullable=True)
    status = Column(String, default="active")  # active, paused, blocked, completed
    priority = Column(Integer, default=1)
    next_action = Column(String, nullable=True)
    risk_flags = Column(JSON, nullable=True)  # List stored as JSON
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    project = relationship("Project", back_populates="intents")


class PaperAsset(Base):
    __tablename__ = "paper_assets"

    id = Column(String, primary_key=True, default=new_id)
    title = Column(String, nullable=False)
    authors_text = Column(String, nullable=True)
    journal_or_source = Column(String, nullable=True)
    published_at = Column(String, nullable=True)
    doi = Column(String, nullable=True)
    abstract = Column(Text, nullable=True)
    source_url = Column(String, nullable=True)
    pdf_url = Column(String, nullable=True)
    local_pdf_path = Column(String, nullable=True)
    quick_read_summary = Column(Text, nullable=True)
    why_relevant = Column(Text, nullable=True)
    potential_use = Column(Text, nullable=True)
    read_status = Column(String, default="unread")  # unread, quick-reviewed, skimmed, deeply-read
    library_status = Column(String, default="pending")  # pending, library
    style_candidate = Column(Boolean, default=False)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)


class ClaimAsset(Base):
    __tablename__ = "claim_assets"

    id = Column(String, primary_key=True, default=new_id)
    project_id = Column(String, ForeignKey("projects.id"), nullable=False)
    claim_text = Column(Text, nullable=False)
    claim_type = Column(String, nullable=True)  # performance, robustness, generalization
    support_level = Column(String, default="unsupported")  # unsupported, weakly_supported, partially_supported, supported, contested
    supporting_experiment_refs = Column(JSON, nullable=True)
    supporting_figure_refs = Column(JSON, nullable=True)
    supporting_paper_refs = Column(JSON, nullable=True)
    linked_sections = Column(JSON, nullable=True)
    open_caveats = Column(Text, nullable=True)
    status = Column(String, default="draft")  # draft, partially-supported, supported, disputed, removed
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)


class Source(Base):
    __tablename__ = "sources"

    id = Column(String, primary_key=True, default=new_id)
    name = Column(String, nullable=False)
    category = Column(String, nullable=True)  # journal, arxiv, conference
    intake_type = Column(String, default="rss")  # rss, toc, api
    feed_url = Column(String, nullable=True)
    site_url = Column(String, nullable=True)
    priority = Column(Integer, default=1)
    enabled = Column(Boolean, default=True)
    include_in_brief = Column(Boolean, default=True)
    allow_pdf_attempt = Column(Boolean, default=False)
    topic_bias = Column(JSON, nullable=True)
    notes = Column(Text, nullable=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)


class FeedItem(Base):
    __tablename__ = "feed_items"

    id = Column(String, primary_key=True, default=new_id)
    source_id = Column(String, ForeignKey("sources.id"), nullable=True)
    external_key = Column(String, nullable=True)
    title = Column(String, nullable=False)
    authors_text = Column(String, nullable=True)
    published_at = Column(String, nullable=True)
    abstract = Column(Text, nullable=True)
    source_url = Column(String, nullable=True)
    pdf_url = Column(String, nullable=True)
    doi = Column(String, nullable=True)
    rank_score = Column(Float, default=0.0)
    novelty_score = Column(Float, default=0.0)
    transferability_score = Column(Float, default=0.0)
    status = Column(String, default="discovered")  # discovered, ranked, presented, quick-reviewed, saved, ignored
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)