"""Database models for AI Software Factory."""

from datetime import datetime
from enum import Enum
from typing import List, Optional
import logging

from sqlalchemy import (
    Column, Integer, String, Text, Boolean, ForeignKey, DateTime, JSON
)
from sqlalchemy.orm import relationship, declarative_base

from config import settings

Base = declarative_base()
logger = logging.getLogger(__name__)


class ProjectStatus(str, Enum):
    """Project status enumeration."""
    INITIALIZED = "initialized"
    STARTED = "started"
    RUNNING = "running"
    COMPLETED = "completed"
    ERROR = "error"


class ProjectHistory(Base):
    """Main project tracking table."""
    __tablename__ = "project_history"

    id = Column(Integer, primary_key=True)
    project_id = Column(String(255), nullable=False)
    project_name = Column(String(255), nullable=True)
    features = Column(Text, default="")
    description = Column(String(255), default="")
    status = Column(String(50), default='started')
    progress = Column(Integer, default=0)
    message = Column(String(500), default="")
    current_step = Column(String(255), nullable=True)
    total_steps = Column(Integer, nullable=True)
    current_step_description = Column(String(1024), nullable=True)
    current_step_details = Column(Text, nullable=True)
    error_message = Column(Text, nullable=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    started_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
    completed_at = Column(DateTime, nullable=True)

    # Relationships
    project_logs = relationship("ProjectLog", back_populates="project_history", cascade="all, delete-orphan")
    ui_snapshots = relationship("UISnapshot", back_populates="project_history", cascade="all, delete-orphan")
    pull_requests = relationship("PullRequest", back_populates="project_history", cascade="all, delete-orphan")
    pull_request_data = relationship("PullRequestData", back_populates="project_history", cascade="all, delete-orphan")


class ProjectLog(Base):
    """Detailed log entries for projects."""
    __tablename__ = "project_logs"

    id = Column(Integer, primary_key=True)
    history_id = Column(Integer, ForeignKey("project_history.id"), nullable=False)
    log_level = Column(String(50), default="INFO")  # INFO, WARNING, ERROR
    log_message = Column(String(500), nullable=False)
    timestamp = Column(DateTime, nullable=True)

    project_history = relationship("ProjectHistory", back_populates="project_logs")


class UISnapshot(Base):
    """UI snapshots for projects."""
    __tablename__ = "ui_snapshots"

    id = Column(Integer, primary_key=True)
    history_id = Column(Integer, ForeignKey("project_history.id"), nullable=False)
    snapshot_data = Column(JSON, nullable=False)
    created_at = Column(DateTime, default=datetime.utcnow)

    project_history = relationship("ProjectHistory", back_populates="ui_snapshots")


class PullRequest(Base):
    """Pull request data for projects."""
    __tablename__ = "pull_requests"

    id = Column(Integer, primary_key=True)
    history_id = Column(Integer, ForeignKey("project_history.id"), nullable=False)
    pr_number = Column(Integer, nullable=False)
    pr_title = Column(String(500), nullable=False)
    pr_body = Column(Text)
    base = Column(String(255), nullable=False)
    user = Column(String(255), nullable=False)
    pr_url = Column(String(500), nullable=False)
    merged = Column(Boolean, default=False)
    merged_at = Column(DateTime, nullable=True)
    pr_state = Column(String(50), nullable=False)
    created_at = Column(DateTime, default=datetime.utcnow)

    project_history = relationship("ProjectHistory", back_populates="pull_requests")


class PullRequestData(Base):
    """Pull request data for audit API."""
    __tablename__ = "pull_request_data"

    id = Column(Integer, primary_key=True)
    history_id = Column(Integer, ForeignKey("project_history.id"), nullable=False)
    pr_number = Column(Integer, nullable=False)
    pr_title = Column(String(500), nullable=False)
    pr_body = Column(Text)
    pr_state = Column(String(50), nullable=False)
    pr_url = Column(String(500), nullable=False)
    created_at = Column(DateTime, default=datetime.utcnow)

    project_history = relationship("ProjectHistory", back_populates="pull_request_data")


class SystemLog(Base):
    """System-wide log entries."""
    __tablename__ = "system_logs"

    id = Column(Integer, primary_key=True)
    component = Column(String(50), nullable=False)
    log_level = Column(String(50), default="INFO")
    log_message = Column(String(500), nullable=False)
    user_agent = Column(String(255), nullable=True)
    ip_address = Column(String(45), nullable=True)
    created_at = Column(DateTime, default=datetime.utcnow)


class AuditTrail(Base):
    """Audit trail entries for system-wide logging."""
    __tablename__ = "audit_trail"

    id = Column(Integer, primary_key=True)
    component = Column(String(50), nullable=True)
    log_level = Column(String(50), default="INFO")
    message = Column(String(500), nullable=False)
    created_at = Column(DateTime, default=datetime.utcnow)
    project_id = Column(String(255), nullable=True)
    action = Column(String(100), nullable=True)
    actor = Column(String(100), nullable=True)
    action_type = Column(String(50), nullable=True)
    details = Column(Text, nullable=True)
    metadata_json = Column(JSON, nullable=True)


class UserAction(Base):
    """User action audit entries."""
    __tablename__ = "user_actions"

    id = Column(Integer, primary_key=True)
    history_id = Column(Integer, ForeignKey("project_history.id"), nullable=True)
    user_id = Column(String(100), nullable=True)
    action_type = Column(String(100), nullable=True)
    actor_type = Column(String(50), nullable=True)
    actor_name = Column(String(100), nullable=True)
    action_description = Column(String(500), nullable=True)
    action_data = Column(JSON, nullable=True)
    created_at = Column(DateTime, default=datetime.utcnow)


class AgentAction(Base):
    """Agent action audit entries."""
    __tablename__ = "agent_actions"

    id = Column(Integer, primary_key=True)
    agent_name = Column(String(100), nullable=False)
    action_type = Column(String(100), nullable=False)
    success = Column(Boolean, default=True)
    message = Column(String(500), nullable=True)
    timestamp = Column(DateTime, default=datetime.utcnow)