"""
ProServe Migration Orchestrator (Placeholder)
Service migration orchestration and strategy management
"""

from typing import Dict, Any, List, Optional
from abc import ABC, abstractmethod


class MigrationStrategy(ABC):
    """Abstract base class for migration strategies"""
    
    @abstractmethod
    async def execute(self, service_config: Dict[str, Any]) -> bool:
        """Execute migration strategy"""
        pass


class BlueGreenStrategy(MigrationStrategy):
    """Blue-green deployment strategy"""
    
    async def execute(self, service_config: Dict[str, Any]) -> bool:
        """Execute blue-green migration"""
        return True


class RollingStrategy(MigrationStrategy):
    """Rolling deployment strategy"""
    
    async def execute(self, service_config: Dict[str, Any]) -> bool:
        """Execute rolling migration"""
        return True


class ImmediateStrategy(MigrationStrategy):
    """Immediate deployment strategy"""
    
    async def execute(self, service_config: Dict[str, Any]) -> bool:
        """Execute immediate migration"""
        return True


class MigrationOrchestrator:
    """Migration orchestration and management"""
    
    def __init__(self, strategy: MigrationStrategy = None):
        self.strategy = strategy or BlueGreenStrategy()
    
    async def orchestrate(self, migration_plan: Dict[str, Any]) -> bool:
        """Orchestrate migration execution"""
        return True


async def orchestrate_migration(plan: Dict[str, Any], strategy: str = "blue-green") -> bool:
    """Orchestrate migration (placeholder)"""
    return True


def create_migration_plan(source: str, target: str) -> Dict[str, Any]:
    """Create migration plan (placeholder)"""
    return {
        "source": source,
        "target": target,
        "strategy": "blue-green"
    }
