from datetime import datetime

from sqlalchemy import Boolean, DateTime, Float, ForeignKey, Integer, String, Text, func
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base


class ChatSession(Base):
    __tablename__ = "chat_sessions"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    title: Mapped[str] = mapped_column(String(255), default="Новый чат")
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )

    messages: Mapped[list["Message"]] = relationship(
        back_populates="session", cascade="all, delete-orphan", order_by="Message.created_at"
    )


class Message(Base):
    __tablename__ = "messages"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    session_id: Mapped[int] = mapped_column(ForeignKey("chat_sessions.id", ondelete="CASCADE"), index=True)
    role: Mapped[str] = mapped_column(String(32))
    content: Mapped[str] = mapped_column(Text, default="")
    tool_calls_json: Mapped[str | None] = mapped_column(Text, nullable=True)
    tool_call_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    session: Mapped["ChatSession"] = relationship(back_populates="messages")


class PomodoroCycle(Base):
    __tablename__ = "pomodoro_cycles"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    work_duration_min: Mapped[int] = mapped_column(Integer, default=25)
    short_break_min: Mapped[int] = mapped_column(Integer, default=5)
    long_break_min: Mapped[int] = mapped_column(Integer, default=15)
    sessions_until_long_break: Mapped[int] = mapped_column(Integer, default=4)
    completed_work_sessions: Mapped[int] = mapped_column(Integer, default=0)
    task_note: Mapped[str] = mapped_column(Text, default="")
    auto_advance: Mapped[bool] = mapped_column(Boolean, default=True)
    chat_notify_seq: Mapped[int] = mapped_column(Integer, default=0)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class PomodoroSession(Base):
    __tablename__ = "pomodoro_sessions"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    status: Mapped[str] = mapped_column(String(32), default="idle")
    phase: Mapped[str] = mapped_column(String(32), default="work")
    duration_min: Mapped[int] = mapped_column(Integer, default=25)
    task_note: Mapped[str] = mapped_column(Text, default="")
    result: Mapped[str | None] = mapped_column(Text, nullable=True)
    completed: Mapped[bool] = mapped_column(Boolean, default=False)
    completion_notified: Mapped[bool] = mapped_column(Boolean, default=False)
    started_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    paused_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    elapsed_seconds: Mapped[int] = mapped_column(Integer, default=0)
    finished_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())


class TaigaProject(Base):
    __tablename__ = "taiga_projects"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    taiga_id: Mapped[int] = mapped_column(Integer, unique=True, index=True)
    name: Mapped[str] = mapped_column(String(255))
    slug: Mapped[str] = mapped_column(String(255), unique=True, index=True)
    synced_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())


class ProjectBinding(Base):
    __tablename__ = "project_bindings"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    taiga_slug: Mapped[str] = mapped_column(String(255), unique=True, index=True)
    gitea_owner: Mapped[str] = mapped_column(String(255), default="")
    gitea_repo: Mapped[str] = mapped_column(String(255), default="")
    default_branch: Mapped[str] = mapped_column(String(64), default="main")
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class UserProfile(Base):
    __tablename__ = "user_profile"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    data_json: Mapped[str] = mapped_column(Text, default="{}")
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class MemoryFact(Base):
    __tablename__ = "memory_facts"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    category: Mapped[str] = mapped_column(String(64), default="fact", index=True)
    content: Mapped[str] = mapped_column(Text)
    source: Mapped[str] = mapped_column(String(32), default="user")
    session_id: Mapped[int | None] = mapped_column(
        ForeignKey("chat_sessions.id", ondelete="SET NULL"), nullable=True, index=True
    )
    importance: Mapped[int] = mapped_column(Integer, default=3)
    active: Mapped[bool] = mapped_column(Boolean, default=True, index=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class SessionSummary(Base):
    __tablename__ = "session_summaries"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    session_id: Mapped[int] = mapped_column(
        ForeignKey("chat_sessions.id", ondelete="CASCADE"), unique=True, index=True
    )
    summary: Mapped[str] = mapped_column(Text, default="")
    message_count: Mapped[int] = mapped_column(Integer, default=0)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class FitnessProfile(Base):
    __tablename__ = "fitness_profiles"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    sex: Mapped[str] = mapped_column(String(16), default="male")
    age: Mapped[int] = mapped_column(Integer, default=30)
    height_cm: Mapped[float] = mapped_column(Float, default=170.0)
    weight_kg: Mapped[float] = mapped_column(Float, default=70.0)
    activity_level: Mapped[str] = mapped_column(String(32), default="moderate")
    goal: Mapped[str] = mapped_column(String(32), default="maintain")
    target_weight_kg: Mapped[float | None] = mapped_column(Float, nullable=True)
    weekly_workouts: Mapped[int] = mapped_column(Integer, default=3)
    calorie_target: Mapped[float] = mapped_column(Float, default=2000.0)
    protein_g: Mapped[float] = mapped_column(Float, default=140.0)
    fat_g: Mapped[float] = mapped_column(Float, default=65.0)
    carbs_g: Mapped[float] = mapped_column(Float, default=200.0)
    water_l: Mapped[float] = mapped_column(Float, default=2.5)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class BodyMetric(Base):
    __tablename__ = "body_metrics"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    recorded_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    weight_kg: Mapped[float] = mapped_column(Float)
    body_fat_pct: Mapped[float | None] = mapped_column(Float, nullable=True)
    chest_cm: Mapped[float | None] = mapped_column(Float, nullable=True)
    waist_cm: Mapped[float | None] = mapped_column(Float, nullable=True)
    notes: Mapped[str] = mapped_column(Text, default="")


class FoodLog(Base):
    __tablename__ = "food_logs"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    logged_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    meal_type: Mapped[str] = mapped_column(String(32), default="snack")
    description: Mapped[str] = mapped_column(Text, default="")
    calories: Mapped[float] = mapped_column(Float, default=0)
    protein_g: Mapped[float] = mapped_column(Float, default=0)
    fat_g: Mapped[float] = mapped_column(Float, default=0)
    carbs_g: Mapped[float] = mapped_column(Float, default=0)
    source: Mapped[str] = mapped_column(String(32), default="llm")
    estimated: Mapped[bool] = mapped_column(Boolean, default=True)


class WaterLog(Base):
    __tablename__ = "water_logs"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    logged_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    amount_ml: Mapped[int] = mapped_column(Integer)


class WorkoutLog(Base):
    __tablename__ = "workout_logs"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    logged_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    title: Mapped[str] = mapped_column(String(255), default="Тренировка")
    notes: Mapped[str] = mapped_column(Text, default="")
    duration_min: Mapped[int | None] = mapped_column(Integer, nullable=True)
    exercises_json: Mapped[str] = mapped_column(Text, default="[]")


class FitnessReminder(Base):
    __tablename__ = "fitness_reminders"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    kind: Mapped[str] = mapped_column(String(32))
    hour: Mapped[int] = mapped_column(Integer, default=12)
    minute: Mapped[int] = mapped_column(Integer, default=0)
    interval_hours: Mapped[int | None] = mapped_column(Integer, nullable=True)
    enabled: Mapped[bool] = mapped_column(Boolean, default=True)
    last_fired_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)


class ShoppingList(Base):
    __tablename__ = "shopping_lists"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    name: Mapped[str] = mapped_column(String(255), unique=True, index=True)
    sort_order: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )

    items: Mapped[list["ShoppingListItem"]] = relationship(
        back_populates="shopping_list",
        cascade="all, delete-orphan",
        order_by="ShoppingListItem.sort_order, ShoppingListItem.id",
    )


class ShoppingListItem(Base):
    __tablename__ = "shopping_list_items"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    list_id: Mapped[int] = mapped_column(
        ForeignKey("shopping_lists.id", ondelete="CASCADE"), index=True
    )
    text: Mapped[str] = mapped_column(String(500))
    quantity: Mapped[float | None] = mapped_column(Float, nullable=True)
    unit: Mapped[str] = mapped_column(String(64), default="")
    checked: Mapped[bool] = mapped_column(Boolean, default=False, index=True)
    sort_order: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    shopping_list: Mapped["ShoppingList"] = relationship(back_populates="items")


class AssistantState(Base):
    __tablename__ = "assistant_state"

    key: Mapped[str] = mapped_column(String(128), primary_key=True)
    value: Mapped[str] = mapped_column(Text, default="")
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )


class WorkItem(Base):
    __tablename__ = "work_items"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    taiga_slug: Mapped[str] = mapped_column(String(255), index=True)
    taiga_project_id: Mapped[int] = mapped_column(Integer)
    taiga_story_id: Mapped[int] = mapped_column(Integer)
    taiga_story_ref: Mapped[int] = mapped_column(Integer, index=True)
    gitea_owner: Mapped[str] = mapped_column(String(255), default="")
    gitea_repo: Mapped[str] = mapped_column(String(255), default="")
    gitea_issue_number: Mapped[int | None] = mapped_column(Integer, nullable=True, index=True)
    suggested_branch: Mapped[str] = mapped_column(String(255), default="")
    raw_text: Mapped[str] = mapped_column(Text, default="")
    title: Mapped[str] = mapped_column(String(500), default="")
    status: Mapped[str] = mapped_column(String(32), default="open")
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    closed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)