"""
SQLAlchemy models for UsTwo.

Tables:
  calls            — uploaded audio files + metadata
  analysis_results — Stage 3 output per call
  checkins         — empathy check-in records
  garden_state     — singleton garden progression
"""
from datetime import datetime, timezone
from sqlalchemy import Column, String, Integer, Float, Text, DateTime, ForeignKey
from .database import Base


def _utcnow() -> datetime:
    return datetime.now(timezone.utc)


class Call(Base):
    __tablename__ = "calls"

    id = Column(String, primary_key=True)            # call_id (timestamp-based)
    audio_path = Column(String, nullable=False)
    duration = Column(Float, nullable=True)
    status = Column(String, default="uploaded")       # uploaded → analyzing → done → error
    error_message = Column(Text, nullable=True)
    created_at = Column(DateTime, default=_utcnow)


class AnalysisResult(Base):
    __tablename__ = "analysis_results"

    id = Column(Integer, primary_key=True, autoincrement=True)
    call_id = Column(String, ForeignKey("calls.id"), nullable=False)
    stage3_json = Column(Text, nullable=False)       # full Stage3Output JSON
    blue_emotion = Column(String, nullable=True)     # quick-query columns
    pink_emotion = Column(String, nullable=True)
    garden_delta = Column(Integer, default=0)
    created_at = Column(DateTime, default=_utcnow)


class CheckIn(Base):
    __tablename__ = "checkins"

    id = Column(Integer, primary_key=True, autoincrement=True)
    iso_date = Column(String, nullable=False)        # YYYY-MM-DD
    score = Column(Integer, nullable=False)
    level = Column(String, nullable=False)           # deep/warm/growing/different/learning
    my_mood = Column(String, nullable=False)
    partner_guess = Column(String, nullable=False)
    created_at = Column(DateTime, default=_utcnow)


class GardenState(Base):
    __tablename__ = "garden_state"

    id = Column(Integer, primary_key=True, default=1)  # singleton (always id=1)
    interaction_count = Column(Integer, default=0)
    total_level = Column(Integer, default=1)
    last_mood = Column(String, default="happy")
    updated_at = Column(DateTime, default=_utcnow, onupdate=_utcnow)