from __future__ import annotations

from datetime import datetime
from typing import Any, Dict, List, Optional

from sqlalchemy import Boolean, DateTime, Integer, JSON, String, Text
from sqlalchemy.orm import Mapped, mapped_column, relationship
from sqlalchemy.sql import func

from .database import Base


class Schedule(Base):
    __tablename__ = "schedules"

    id: Mapped[str] = mapped_column(String, primary_key=True)
    name: Mapped[str] = mapped_column(String, nullable=False)
    description: Mapped[str] = mapped_column(Text, nullable=True)
    playbook: Mapped[str] = mapped_column(String, nullable=False)
    target_type: Mapped[str] = mapped_column(String, default="group", nullable=True)
    target: Mapped[str] = mapped_column(String, nullable=False)
    extra_vars: Mapped[Dict[str, Any]] = mapped_column(JSON, nullable=True)
    schedule_type: Mapped[str] = mapped_column(String, nullable=False)
    schedule_time: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=True)
    recurrence_type: Mapped[str] = mapped_column(String, nullable=True)
    recurrence_time: Mapped[str] = mapped_column(String, nullable=True)
    recurrence_days: Mapped[str] = mapped_column(Text, nullable=True)
    cron_expression: Mapped[str] = mapped_column(String, nullable=True)
    timezone: Mapped[str] = mapped_column(String, default="America/Montreal", nullable=True)
    start_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=True)
    end_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=True)
    enabled: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    tags: Mapped[str] = mapped_column(Text, nullable=True)
    next_run: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=True)
    last_run: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=True)
    last_status: Mapped[str] = mapped_column(String, default="never", nullable=True)
    retry_on_failure: Mapped[int] = mapped_column(Integer, default=0, nullable=True)
    timeout: Mapped[int] = mapped_column(Integer, default=3600, nullable=True)
    # Type de notification: "none" (aucune), "all" (toujours), "errors" (erreurs seulement)
    notification_type: Mapped[str] = mapped_column(String, default="all", nullable=True)
    run_count: Mapped[int] = mapped_column(Integer, default=0, nullable=True)
    success_count: Mapped[int] = mapped_column(Integer, default=0, nullable=True)
    failure_count: Mapped[int] = mapped_column(Integer, default=0, nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now())
    deleted_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=True)

    runs: Mapped[List["ScheduleRun"]] = relationship(
        "ScheduleRun", back_populates="schedule", cascade="all, delete-orphan"
    )

    def __repr__(self) -> str:  # pragma: no cover - debug helper
        return f"<Schedule id={self.id} name={self.name} target={self.target}>"