"""
HuggingFace Spaces 监控系统使用示例
演示如何使用监控系统的各种功能
"""

import asyncio
import logging
import os
from datetime import datetime
from typing import List

from config import ConfigManager, setup_logging, create_sample_config
from data_models import SpaceStatus, EventType, AlertLevel, AlertRule
from huggingface_client_v2 import HuggingFaceClient, RetryClient, WebhookHandler
from monitor_engine import MonitorEngine, HealthChecker


async def example_basic_monitoring():
    基础监控示例
    print("=" * 50)
    print("基础监控示例")
    print("=" * 50)
    
    client = RetryClient(HuggingFaceClient())
    
    try:
        space_status = await client.get_space_status("meta-llama/Llama-2-7b-chat-hf")
        print(f"Space 状态: {space_status.status.value}")
        print(f"运行时阶段: {space_status.runtime.stage}")
        print(f"运行时状态: {space_status.runtime.state}")
        
        logs = await client.get_space_logs("meta-llama/Llama-2-7b-chat-hf", lines=10)
        print(f"获取到 {len(logs.entries)} 条日志")
        
    except Exception as e:
        print(f"监控失败: {e}")
    
    finally:
        await client.client.close()


async def example_monitor_engine():
    监控引擎示例
    print("=" * 50)
    print("监控引擎示例")
    print("=" * 50)
    
    engine = MonitorEngine()
    
    def on_status_change(event):
        print(f"状态变化事件: {event.space_id} - {event.message}")
    
    def on_error(event):
        print(f"错误事件: {event.space_id} - {event.message}")
    
    engine.register_event_callback(EventType.STATUS_CHANGE, on_status_change)
    engine.register_event_callback(EventType.ERROR_DETECTED, on_error)
    
    try:
        await engine.start()
        
        await engine.add_space("meta-llama/Llama-2-7b-chat-hf")
        
        alert_rule = AlertRule(
            name="连续错误告警",
            description="当 Space 连续 3 次检查失败时触发告警",
            condition={"consecutive_errors": 3},
            severity=AlertLevel.HIGH,
            cooldown_minutes=30
        )
        await engine.add_alert_rule(alert_rule)
        
        print("监控运行中，等待 30 秒...")
        await asyncio.sleep(30)
        
        stats = await engine.get_stats()
        print(f"监控统计: {stats}")
        
    except Exception as e:
        print(f"监控引擎异常: {e}")
    
    finally:
        await engine.stop()


async def example_webhook_handling():
    Webhook 处理示例
    print("=" * 50)
    print("Webhook 处理示例")
    print("=" * 50)
    
    client = HuggingFaceClient()
    handler = WebhookHandler(client, secret="test-secret")
    
    sample_webhook = {
        "event": "space.status_updated",
        "space": {
            "id": "test-space",
            "runtime": {
                "stage": "RUNNING",
                "state": "RUNNING"
            }
        }
    }
    
    headers = {
        "X-Hub-Signature-256": "sha256=fake-signature"
    }
    
    try:
        event = await handler.handle_webhook(sample_webhook, headers)
        print(f"Webhook 事件处理完成: {event.event_type.value}")
        
    except Exception as e:
        print(f"Webhook 处理失败: {e}")
    
    finally:
        await client.close()


async def example_search_spaces():
    搜索 Spaces 示例
    print("=" * 50)
    print("搜索 Spaces 示例")
    print("=" * 50)
    
    client = HuggingFaceClient()
    
    try:
        spaces = await client.search_spaces("text-generation", limit=5)
        print(f"找到 {len(spaces)} 个 Spaces:")
        
        for space in spaces:
            print(f"  - {space.space_id} by {space.author}")
            print(f"    SDK: {space.sdk}")
            print(f"    描述: {space.description[:100]}...")
            print()
        
    except Exception as e:
        print(f"搜索失败: {e}")
    
    finally:
        await client.close()


async def example_user_spaces():
    获取用户 Spaces 示例
    print("=" * 50)
    print("获取用户 Spaces 示例")
    print("=" * 50)
    
    client = HuggingFaceClient()
    
    try:
        spaces = await client.get_user_spaces()
        print(f"用户有 {len(spaces)} 个 Spaces:")
        
        for space in spaces[:10]:
            print(f"  - {space.space_id}")
            print(f"    状态: {space.last_modified}")
            print()
        
    except Exception as e:
        print(f"获取用户 Spaces 失败: {e}")
    
    finally:
        await client.close()


async def example_health_check():
    健康检查示例
    print("=" * 50)
    print("健康检查示例")
    print("=" * 50)
    
    engine = MonitorEngine()
    health_checker = HealthChecker(engine)
    
    try:
        health_status = await health_checker.check_health()
        print("健康检查结果:")
        print(f"  总体状态: {health_status['status']}")
        
        for check_name, check_result in health_status['checks'].items():
            print(f"  {check_name}: {check_result['status']}")
            if 'details' in check_result:
                print(f"    详情: {check_result['details']}")
        
    except Exception as e:
        print(f"健康检查失败: {e}")


async def example_configuration():
    配置管理示例
    print("=" * 50)
    print("配置管理示例")
    print("=" * 50)
    
    print("1. 创建示例配置文件...")
    create_sample_config("example_config.json")
    
    print("2. 加载配置...")
    config_manager = ConfigManager("example_config.json")
    config = config_manager.get_config()
    
    print(f"API 配置: {config.api.base_url}")
    print(f"监控间隔: {config.monitoring.default_check_interval} 秒")
    print(f"日志级别: {config.logging.level}")
    
    print("3. 验证配置...")
    errors = config_manager.validate_config()
    if errors:
        print("配置错误:")
        for error in errors:
            print(f"  - {error}")
    else:
        print("配置验证通过")
    
    print("4. 设置日志...")
    setup_logging(config.logging)
    logger = logging.getLogger(__name__)
    logger.info("日志系统已初始化")


async def example_batch_monitoring():
    批量监控示例
    print("=" * 50)
    print("批量监控示例")
    print("=" * 50)
    
    engine = MonitorEngine()
    
    space_ids = [
        "meta-llama/Llama-2-7b-chat-hf",
        "stabilityai/stable-diffusion",
        "microsoft/DialoGPT-medium"
    ]
    
    try:
        await engine.start()
        
        print(f"添加 {len(space_ids)} 个 Spaces 到监控列表...")
        for space_id in space_ids:
            try:
                await engine.add_space(space_id)
                print(f"  ✓ {space_id}")
            except Exception as e:
                print(f"  ✗ {space_id}: {e}")
        
        print("监控运行 60 秒...")
        await asyncio.sleep(60)
        
        monitored_spaces = await engine.get_monitored_spaces()
        print(f"当前监控的 Spaces: {monitored_spaces}")
        
        for space_id in monitored_spaces:
            events = await engine.get_space_events(space_id, limit=5)
            print(f"{space_id}: {len(events)} 个事件")
            
            for event in events:
                print(f"  - {event.event_type.value}: {event.message}")
        
    except Exception as e:
        print(f"批量监控异常: {e}")
    
    finally:
        await engine.stop()


async def example_advanced_features():
    高级功能示例
    print("=" * 50)
    print("高级功能示例")
    print("=" * 50)
    
    engine = MonitorEngine()
    
    async def advanced_event_handler(event):
        print(f"高级事件处理器: {event.event_type.value} - {event.space_id}")
        
        if event.event_type == EventType.ERROR_DETECTED:
            print("  检测到错误，可以执行自动修复逻辑")
        elif event.event_type == EventType.SPACE_STARTED:
            print("  Space 启动，可以发送通知")
    
    engine.register_event_callback(EventType.ERROR_DETECTED, advanced_event_handler)
    engine.register_event_callback(EventType.SPACE_STARTED, advanced_event_handler)
    
    try:
        await engine.start()
        
        await engine.add_space("meta-llama/Llama-2-7b-chat-hf")
        
        custom_alert_rule = AlertRule(
            name="自定义状态变化告警",
            description="当 Space 从运行状态变为错误状态时触发",
            condition={
                "event_type": "status_change",
                "from_status": "running",
                "to_status": "error"
            },
            severity=AlertLevel.MEDIUM,
            cooldown_minutes=15
        )
        await engine.add_alert_rule(custom_alert_rule)
        
        print("运行高级功能演示 45 秒...")
        await asyncio.sleep(45)
        
        await engine.pause_monitoring()
        print("监控已暂停 10 秒...")
        await asyncio.sleep(10)
        
        await engine.resume_monitoring()
        print("监控已恢复")
        
        await asyncio.sleep(10)
        
    except Exception as e:
        print(f"高级功能演示异常: {e}")
    
    finally:
        await engine.stop()


async def main():
    print("HuggingFace Spaces 监控系统 - 使用示例")
    print("=" * 60)
    
    if not os.getenv("HF_TOKEN"):
        print("警告: 未设置 HF_TOKEN 环境变量")
        print("请设置有效的 HuggingFace 访问令牌以运行完整示例")
        print()
    
    examples = [
        ("配置管理", example_configuration),
        ("基础监控", example_basic_monitoring),
        ("搜索 Spaces", example_search_spaces),
        ("Webhook 处理", example_webhook_handling),
        ("健康检查", example_health_check),
        ("监控引擎", example_monitor_engine),
        ("批量监控", example_batch_monitoring),
        ("高级功能", example_advanced_features),
    ]
    
    for name, example_func in examples:
        print(f"\n运行示例: {name}")
        try:
            await example_func()
        except Exception as e:
            print(f"示例 {name} 执行失败: {e}")
        print()


if __name__ == "__main__":
    asyncio.run(main())