import os
import time
import logging
import docker
from typing import Tuple


class ODMProcessMonitor:
    """ODM进程监控器"""

    def __init__(self, max_retries: int = 3, mode: str = "快拼模式"):
        self.max_retries = max_retries
        self.logger = logging.getLogger('UAV_Preprocess.ODMMonitor')
        self.mode = mode
        self.client = docker.from_env()

    def _check_success(self, grid_dir: str) -> bool:
        """检查ODM是否执行成功"""
        success_markers = ['odm_orthophoto', 'odm_georeferencing']
        if self.mode != "快拼模式":
            success_markers.append('odm_texturing')
        return all(os.path.exists(os.path.join(grid_dir, 'project', marker)) for marker in success_markers)

    def run_odm_with_monitor(self, grid_dir: str, grid_idx: int, fast_mode: bool = True) -> Tuple[bool, str]:
        """运行ODM容器"""
        attempt = 0
        while attempt < self.max_retries:
            try:
                self.logger.info(f"网格 {grid_idx + 1} 第 {attempt + 1} 次尝试")

                # 准备容器配置
                volumes = {
                    grid_dir: {'bind': '/datasets', 'mode': 'rw'}
                }

                # 准备命令参数
                command = [
                    "--project-path", "/datasets", "project",
                    "--max-concurrency", "10",
                    "--force-gps",
                    "--rerun-all"
                ]

                if fast_mode:
                    command.extend([
                        "--feature-quality", "lowest",
                        "--orthophoto-resolution", "8",
                        "--fast-orthophoto",
                        "--skip-3dmodel"
                    ])

                # 运行容器
                container = self.client.containers.run(
                    "opendronemap/odm",
                    command=command,
                    volumes=volumes,
                    detach=True,
                    remove=True
                )

                # 等待容器完成
                result = container.wait()
                
                # 只在失败时获取日志
                if result['StatusCode'] != 0:
                    logs = container.logs().decode('utf-8')
                    self.logger.error(f"容器执行失败，最后100行日志：\n{''.join(logs.split('\n')[-100:])}")
                    
                # 检查是否成功完成
                if result['StatusCode'] == 0 and self._check_success(grid_dir):
                    self.logger.info(f"网格 {grid_idx + 1} ODM处理成功")
                    return True, ""

                self.logger.warning(f"网格 {grid_idx + 1} 第 {attempt + 1} 次尝试失败")

            except Exception as e:
                error_msg = f"执行异常: {str(e)}"
                self.logger.error(error_msg)
                return False, error_msg

            attempt += 1
            if attempt < self.max_retries:
                time.sleep(30)

        error_msg = f"网格 {grid_idx + 1} 在 {self.max_retries} 次尝试后仍然失败"
        self.logger.error(error_msg)
        return False, error_msg