# -*- coding: utf-8 -*-

import json
import os
import queue
import shutil
import socket
import sys
import threading
import time
from datetime import datetime
from pathlib import Path
from tkinter import Tk, Label, Entry, Button, StringVar, END, DISABLED, NORMAL, filedialog, messagebox, simpledialog
from tkinter.scrolledtext import ScrolledText

import requests
from requests.adapters import HTTPAdapter
from urllib3.util.retry import Retry

CONTROL_HOST = "127.0.0.1"
CONTROL_PORT = 52347
SINGLE_INSTANCE_MUTEX_NAME = "Global\\QMSFileCollector_SingleInstance"
ERROR_ALREADY_EXISTS = 183


def acquire_single_instance_lock():
    if os.name != "nt":
        return None, True
    try:
        import ctypes
        kernel32 = ctypes.windll.kernel32
        handle = kernel32.CreateMutexW(None, False, SINGLE_INSTANCE_MUTEX_NAME)
        if not handle:
            return None, True
        if kernel32.GetLastError() == ERROR_ALREADY_EXISTS:
            kernel32.CloseHandle(handle)
            return None, False
        return handle, True
    except Exception:
        return None, True


def notify_existing_instance_show(retries=8, sleep_seconds=0.25):
    for _ in range(max(1, retries)):
        try:
            with socket.create_connection((CONTROL_HOST, CONTROL_PORT), timeout=1.0) as conn:
                conn.sendall(b"SHOW")
                return True
        except Exception:
            time.sleep(sleep_seconds)
    return False


def get_runtime_dir():
    if getattr(sys, "frozen", False):
        return Path(sys.executable).resolve().parent
    return Path(__file__).resolve().parent


def _ensure_windows_run_registry(entry_name, exe_path):
    import winreg
    run_key_path = r"Software\Microsoft\Windows\CurrentVersion\Run"
    target_value = "\"%s\"" % exe_path

    try:
        with winreg.OpenKey(
            winreg.HKEY_CURRENT_USER,
            run_key_path,
            0,
            winreg.KEY_READ | winreg.KEY_SET_VALUE
        ) as key:
            try:
                old_value, _ = winreg.QueryValueEx(key, entry_name)
            except FileNotFoundError:
                old_value = None

            if old_value and str(old_value).strip().strip("\"").lower() == exe_path.lower():
                return False, "系统自启动项已存在，无需重复写入。"

            winreg.SetValueEx(key, entry_name, 0, winreg.REG_SZ, target_value)
            if old_value:
                return True, "检测到自启动路径变化，已自动更新。"
            return True, "首次启动已写入系统自启动项，下次开机会自动运行。"
    except Exception as e:
        return False, "写入系统自启动项失败: %s" % e


def _remove_windows_run_entry(entry_name):
    try:
        import winreg
        run_key_path = r"Software\Microsoft\Windows\CurrentVersion\Run"
        with winreg.OpenKey(
            winreg.HKEY_CURRENT_USER,
            run_key_path,
            0,
            winreg.KEY_SET_VALUE
        ) as key:
            try:
                winreg.DeleteValue(key, entry_name)
            except FileNotFoundError:
                pass
    except Exception:
        pass


def _cleanup_legacy_startup_items(legacy_entry_name, app_data):
    if app_data:
        startup_dir = Path(app_data) / "Microsoft" / "Windows" / "Start Menu" / "Programs" / "Startup"
        legacy_script = startup_dir / (legacy_entry_name + ".vbs")
        try:
            if legacy_script.exists():
                legacy_script.unlink()
        except Exception:
            pass

    _remove_windows_run_entry(legacy_entry_name)


def ensure_windows_startup():
    if os.name != "nt":
        return False, "当前系统非Windows，跳过自启动注册。"

    if not getattr(sys, "frozen", False):
        return False, "当前为源码运行，跳过自启动注册。"

    exe_path = str(Path(sys.executable).resolve())
    entry_name = "QMSFileCollector"

    app_data = os.getenv("APPDATA", "").strip()
    _cleanup_legacy_startup_items("CKPClientFileCollector", app_data)
    if app_data:
        startup_dir = Path(app_data) / "Microsoft" / "Windows" / "Start Menu" / "Programs" / "Startup"
        startup_script = startup_dir / (entry_name + ".vbs")
        script_content = (
            "Set WshShell = CreateObject(\"WScript.Shell\")\n"
            "WshShell.Run Chr(34) & \"%s\" & Chr(34), 7\n"
            "Set WshShell = Nothing\n"
        ) % exe_path.replace("\"", "\"\"")

        try:
            startup_dir.mkdir(parents=True, exist_ok=True)
            old_content = ""
            if startup_script.exists():
                old_content = startup_script.read_text(encoding="utf-8")

            if old_content == script_content:
                return False, "启动文件夹自启动项已存在，无需重复写入。"

            startup_script.write_text(script_content, encoding="utf-8")
            _remove_windows_run_entry(entry_name)
            if old_content:
                return True, "检测到启动文件夹自启动路径变化，已自动更新。"
            return True, "首次启动已写入启动文件夹自启动项，下次开机会自动运行。"
        except Exception as startup_error:
            try:
                if startup_script.exists():
                    startup_script.unlink()
            except Exception:
                pass
            try:
                changed, reg_msg = _ensure_windows_run_registry(entry_name, exe_path)
                return changed, "写入启动文件夹失败，已回退注册表方式: %s" % reg_msg
            except Exception as reg_error:
                return False, "写入启动文件夹和注册表均失败: %s; %s" % (startup_error, reg_error)

    try:
        return _ensure_windows_run_registry(entry_name, exe_path)
    except Exception as e:
        return False, "未获取到APPDATA且注册表写入失败: %s" % e


class CollectorApp:
    def __init__(self, root):
        self.root = root
        self.root.title("文件采集客户端")
        self.root.geometry("1280x720")
        self.root.resizable(True, True)

        self.config_path = get_runtime_dir() / "collector_config.json"
        self.log_queue = queue.Queue()
        self.running = False
        self.worker_thread = None
        self.stop_event = threading.Event()
        self.active_rows = []
        self.upload_state = {}
        self.notice_ts = {}
        self.processing_lock = threading.Lock()
        self.processing_files = set()
        self.control_stop_event = threading.Event()
        self.http_session = self._create_http_session()

        self.base_url_var = StringVar()
        self.poll_seconds_var = StringVar(value="10")

        self.row_vars = []
        for _ in range(3):
            self.row_vars.append({
                "site": StringVar(),
                "bu_no": StringVar(),
                "equipment_no": StringVar(),
                "source_path": StringVar(),
                "backup_path": StringVar(),
            })

        self._build_ui()
        self.root.protocol("WM_DELETE_WINDOW", self._on_window_close)
        self._start_control_server()
        self._init_windows_startup()
        self._load_config()
        self.root.after(200, self._flush_logs)
        self.root.after(3000, self._watch_worker)

    def _start_control_server(self):
        self.control_thread = threading.Thread(target=self._control_server_loop, daemon=True)
        self.control_thread.start()

    def _control_server_loop(self):
        server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        try:
            server.bind((CONTROL_HOST, CONTROL_PORT))
            server.listen(1)
            server.settimeout(1.0)
        except Exception:
            try:
                server.close()
            except Exception:
                pass
            return

        while not self.control_stop_event.is_set():
            try:
                conn, _ = server.accept()
            except socket.timeout:
                continue
            except Exception:
                break

            try:
                payload = conn.recv(16)
                if b"SHOW" in payload:
                    self.root.after(0, self._show_main_window)
            except Exception:
                pass
            finally:
                try:
                    conn.close()
                except Exception:
                    pass

        try:
            server.close()
        except Exception:
            pass

    def _show_main_window(self):
        try:
            self.root.deiconify()
            self.root.state("normal")
            self.root.lift()
            self.root.attributes("-topmost", True)
            self.root.after(300, lambda: self.root.attributes("-topmost", False))
            self.root.focus_force()
        except Exception:
            pass

    def _create_http_session(self):
        retry = Retry(
            total=3,
            connect=3,
            read=3,
            backoff_factor=1.0,
            status_forcelist=[500, 502, 503, 504],
            allowed_methods=frozenset(["POST"]),
            raise_on_status=False,
        )
        adapter = HTTPAdapter(max_retries=retry, pool_connections=8, pool_maxsize=8)
        session = requests.Session()
        session.mount("http://", adapter)
        session.mount("https://", adapter)
        return session

    def _init_windows_startup(self):
        changed, message = ensure_windows_startup()
        if changed:
            self.log(message)
            return

        if getattr(sys, "frozen", False) and ("失败" in message):
            self.log(message)

    def _build_ui(self):
        Label(self.root, text="系统地址").place(x=20, y=20)
        Entry(self.root, textvariable=self.base_url_var, width=92).place(x=85, y=20)
        Button(self.root, text="弹框设置地址", command=self.popup_set_base_url).place(x=860, y=16)
        Button(self.root, text="保存配置", command=self.save_config).place(x=970, y=16)

        Label(self.root, text="轮询秒").place(x=20, y=58)
        Entry(self.root, textvariable=self.poll_seconds_var, width=10).place(x=85, y=58)
        Button(self.root, text="开始同步", command=self.start_collect).place(x=180, y=54)
        Button(self.root, text="停止同步", command=self.stop_collect).place(x=265, y=54)
        Button(self.root, text="退出程序", command=self.exit_app).place(x=1080, y=54)

        Label(self.root, text="配置说明：最多3行，每行需填写 site + buNo + equipmentNo + 本地目录；备份目录可选（为空则自动使用本地目录_bak）").place(x=360, y=58)

        Label(self.root, text="行").place(x=20, y=100)
        Label(self.root, text="Site").place(x=80, y=100)
        Label(self.root, text="BuNo").place(x=220, y=100)
        Label(self.root, text="EquipmentNo").place(x=360, y=100)
        Label(self.root, text="本地目录").place(x=530, y=100)
        Label(self.root, text="备份目录").place(x=890, y=100)

        for idx, row in enumerate(self.row_vars):
            y = 130 + idx * 40
            Label(self.root, text=str(idx + 1)).place(x=26, y=y)
            Entry(self.root, textvariable=row["site"], width=16).place(x=80, y=y)
            Entry(self.root, textvariable=row["bu_no"], width=16).place(x=220, y=y)
            Entry(self.root, textvariable=row["equipment_no"], width=18).place(x=360, y=y)
            Entry(self.root, textvariable=row["source_path"], width=40).place(x=530, y=y)
            Button(self.root, text="选择目录", command=lambda x=idx: self.choose_source_dir(x)).place(x=815, y=y - 4)
            Entry(self.root, textvariable=row["backup_path"], width=30).place(x=890, y=y)
            Button(self.root, text="选择目录", command=lambda x=idx: self.choose_backup_dir(x)).place(x=1110, y=y - 4)

        self.log_text = ScrolledText(self.root, width=165, height=23)
        self.log_text.place(x=20, y=280)
        self.log_text.configure(state=DISABLED)

    def popup_set_base_url(self):
        new_url = simpledialog.askstring(
            "设置目标地址",
            "请输入xujie-sys地址，例如：http://172.26.58.88:8080",
            initialvalue=self.base_url_var.get().strip()
        )
        if new_url is not None:
            self.base_url_var.set(new_url.strip())
            self.log("已设置目标地址: %s" % new_url.strip())

    def choose_source_dir(self, row_index):
        path = filedialog.askdirectory(title="选择第%d行本地目录" % (row_index + 1))
        if path:
            row = self.row_vars[row_index]
            row["source_path"].set(path)
            if not row["backup_path"].get().strip():
                row["backup_path"].set(self._default_backup_path(path))

    def choose_backup_dir(self, row_index):
        path = filedialog.askdirectory(title="选择第%d行备份目录" % (row_index + 1))
        if path:
            self.row_vars[row_index]["backup_path"].set(path)

    def _default_backup_path(self, source_path):
        source_text = str(source_path).strip()
        if not source_text:
            return ""
        source = Path(source_text)
        return str(source.parent / (source.name + "_bak"))

    def _load_config(self):
        if not self.config_path.exists():
            self.log("未找到本地配置，请先录入并保存。")
            return
        try:
            config = json.loads(self.config_path.read_text(encoding="utf-8"))
            self.base_url_var.set(config.get("base_url", ""))
            self.poll_seconds_var.set(str(config.get("poll_seconds", "10")))

            rows = config.get("rows")
            # 兼容旧版本单行配置
            if not isinstance(rows, list):
                rows = [{
                    "site": config.get("site", ""),
                    "bu_no": config.get("bu_no", ""),
                    "equipment_no": config.get("equipment_no", ""),
                    "source_path": config.get("source_path", ""),
                    "backup_path": config.get("backup_path", ""),
                }]

            for idx in range(min(3, len(rows))):
                item = rows[idx] if isinstance(rows[idx], dict) else {}
                source_path = str(item.get("source_path", "")).strip()
                backup_path = str(item.get("backup_path", "")).strip()
                if source_path and not backup_path:
                    backup_path = self._default_backup_path(source_path)

                self.row_vars[idx]["site"].set(str(item.get("site", "")).strip())
                self.row_vars[idx]["bu_no"].set(str(item.get("bu_no", "")).strip())
                self.row_vars[idx]["equipment_no"].set(str(item.get("equipment_no", "")).strip())
                self.row_vars[idx]["source_path"].set(source_path)
                self.row_vars[idx]["backup_path"].set(backup_path)

            self.log("配置加载完成。")
            if self._can_auto_start():
                self.start_collect(auto_mode=True)
        except Exception as e:
            self.log("读取配置失败: %s" % e)

    def save_config(self):
        try:
            rows = self._get_valid_rows(require_complete=True, raise_on_empty=False)
        except ValueError as e:
            messagebox.showwarning("提示", str(e))
            return

        data = {
            "base_url": self.base_url_var.get().strip(),
            "poll_seconds": self.poll_seconds_var.get().strip(),
            "rows": rows,
        }
        try:
            self.config_path.write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding="utf-8")
            self.log("配置已保存: %s" % self.config_path)
        except Exception as e:
            messagebox.showerror("错误", "保存配置失败: %s" % e)
            return

        if self.running:
            self.active_rows = rows
            self.log("采集配置已更新，下一轮轮询自动生效。")
        elif self._can_auto_start():
            self.start_collect(auto_mode=True)

    def _can_auto_start(self):
        if not self._base_url():
            return False
        if not self._is_poll_seconds_valid():
            return False
        try:
            rows = self._get_valid_rows(require_complete=True, raise_on_empty=True)
            return len(rows) > 0
        except Exception:
            return False

    def _is_poll_seconds_valid(self):
        try:
            return int(self.poll_seconds_var.get().strip()) > 0
        except Exception:
            return False

    def _base_url(self):
        return self.base_url_var.get().strip().rstrip("/")

    def _get_valid_rows(self, require_complete, raise_on_empty):
        rows = []
        for idx, row in enumerate(self.row_vars):
            site = row["site"].get().strip()
            bu_no = row["bu_no"].get().strip()
            equipment_no = row["equipment_no"].get().strip()
            source_path = row["source_path"].get().strip()
            backup_path = row["backup_path"].get().strip()

            filled_count = 0
            for value in (site, bu_no, equipment_no, source_path, backup_path):
                if value:
                    filled_count += 1

            if filled_count == 0:
                continue

            required_count = 0
            for value in (site, bu_no, equipment_no, source_path):
                if value:
                    required_count += 1

            if require_complete and required_count < 4:
                raise ValueError("第%d行配置未填写完整，请补全site、buNo、equipmentNo、本地目录。" % (idx + 1))

            if required_count == 4:
                if not backup_path:
                    backup_path = self._default_backup_path(source_path)
                if os.path.normcase(os.path.normpath(source_path)) == os.path.normcase(os.path.normpath(backup_path)):
                    raise ValueError("第%d行配置错误：本地目录和备份目录不能相同。" % (idx + 1))

                rows.append({
                    "row_index": idx + 1,
                    "site": site,
                    "bu_no": bu_no,
                    "equipment_no": equipment_no,
                    "source_path": source_path,
                    "backup_path": backup_path,
                })

        if raise_on_empty and len(rows) == 0:
            raise ValueError("请至少填写一行完整采集配置。")
        return rows

    def start_collect(self, auto_mode=False):
        if self.running and self.worker_thread is not None and self.worker_thread.is_alive():
            if not auto_mode:
                self.log("采集任务已在运行中。")
            return
        if self.running and (self.worker_thread is None or not self.worker_thread.is_alive()):
            self.log("检测到采集线程已退出，正在自动重启。")
            self.running = False

        if not self._base_url():
            if auto_mode:
                self.log("自动启动失败：系统地址为空。")
            else:
                messagebox.showwarning("提示", "请先设置系统地址")
            return

        try:
            poll_seconds = int(self.poll_seconds_var.get().strip() or "10")
            if poll_seconds <= 0:
                raise ValueError("轮询秒必须大于0")
        except Exception:
            if auto_mode:
                self.log("自动启动失败：轮询秒无效。")
            else:
                messagebox.showwarning("提示", "轮询秒必须是大于0的整数")
            return

        try:
            rows = self._get_valid_rows(require_complete=True, raise_on_empty=True)
        except ValueError as e:
            if auto_mode:
                self.log("自动启动失败：%s" % e)
            else:
                messagebox.showwarning("提示", str(e))
            return

        self.active_rows = rows
        # 每次手动/自动启动都重置一次状态，避免停启后误判“已同步”。
        self.upload_state = {}
        self.notice_ts = {}
        with self.processing_lock:
            self.processing_files.clear()
        self.stop_event = threading.Event()
        self.running = True
        self.worker_thread = threading.Thread(target=self._worker_loop, args=(self.stop_event,), daemon=True)
        self.worker_thread.start()
        if auto_mode:
            self.log("配置有效，已自动启动轮询同步。")
        else:
            self.log("采集任务已启动。")

    def stop_collect(self):
        if not self.running:
            self.log("采集任务未运行。")
            return
        self.running = False
        self.stop_event.set()
        self.log("正在停止采集任务...")

    def _on_window_close(self):
        self.root.iconify()
        self._log_with_interval("window_hidden", "配置窗口已最小化到任务栏，采集仍在后台运行。", 5)

    def exit_app(self):
        self.running = False
        self.stop_event.set()
        self.control_stop_event.set()
        try:
            self.http_session.close()
        except Exception:
            pass
        self.root.destroy()

    def _watch_worker(self):
        try:
            if self.running and (self.worker_thread is None or not self.worker_thread.is_alive()):
                self.log("检测到采集线程中断，正在自动恢复...")
                self.running = False
                self.start_collect(auto_mode=True)
        finally:
            self.root.after(3000, self._watch_worker)

    def _worker_loop(self, stop_event):
        while not stop_event.is_set():
            try:
                rows = list(self.active_rows)
                for row in rows:
                    if stop_event.is_set():
                        break
                    try:
                        self._sync_one_row(row, stop_event)
                    except Exception as row_error:
                        self.log("第%d行同步异常，已跳过并继续: %s" % (row.get("row_index", 0), row_error))

                try:
                    poll_seconds = int(self.poll_seconds_var.get().strip() or "10")
                except Exception:
                    poll_seconds = 10

                for _ in range(max(1, poll_seconds)):
                    if stop_event.is_set():
                        break
                    time.sleep(1)
            except Exception as e:
                self.log("采集线程异常，将自动继续: %s" % e)
                for _ in range(5):
                    if stop_event.is_set():
                        break
                    time.sleep(1)
        if self.stop_event is stop_event:
            self.running = False
            self.worker_thread = None
            self.log("采集任务已停止。")

    def _sync_one_row(self, row, stop_event):
        row_index = row["row_index"]
        source_path = row["source_path"]
        path_key = "row%d_missing" % row_index
        empty_key = "row%d_empty" % row_index

        if not os.path.isdir(source_path):
            self._log_with_interval(path_key, "第%d行目录不存在: %s" % (row_index, source_path), 60)
            return

        files = []
        try:
            for name in os.listdir(source_path):
                file_path = Path(source_path) / name
                if file_path.is_file():
                    files.append(file_path)
        except Exception as e:
            self._log_with_interval(path_key, "第%d行读取目录失败: %s, 原因: %s" % (row_index, source_path, e), 30)
            return

        self._cleanup_row_upload_state(row_index, files)
        if not files:
            self._log_with_interval(empty_key, "第%d行目录为空，等待新文件..." % row_index, 60)
            return

        files.sort(key=self._safe_mtime)
        for file_path in files:
            if stop_event.is_set():
                return
            state_key = "%d|%s" % (row_index, str(file_path).lower())
            if not self._try_acquire_processing(state_key):
                continue

            try:
                signature = self._file_signature(file_path)
                if signature is None:
                    continue

                # 已上传但上次备份失败，则仅重试备份，避免重复上传造成服务器/备份放大。
                if self.upload_state.get(state_key) == signature:
                    if self._backup_and_remove_file(row, file_path):
                        self.upload_state.pop(state_key, None)
                    continue

                if self._upload_file(row, file_path):
                    self.upload_state[state_key] = signature
                    if self._backup_and_remove_file(row, file_path):
                        # 文件已从源目录移走，立即清理状态，允许后续同名新文件再次同步。
                        self.upload_state.pop(state_key, None)
            finally:
                self._release_processing(state_key)

    def _cleanup_row_upload_state(self, row_index, files):
        prefix = "%d|" % row_index
        current_keys = set()
        for file_path in files:
            current_keys.add("%d|%s" % (row_index, str(file_path).lower()))

        stale_keys = []
        for key in list(self.upload_state.keys()):
            if key.startswith(prefix) and key not in current_keys:
                stale_keys.append(key)

        for key in stale_keys:
            self.upload_state.pop(key, None)

    def _try_acquire_processing(self, state_key):
        with self.processing_lock:
            if state_key in self.processing_files:
                return False
            self.processing_files.add(state_key)
            return True

    def _release_processing(self, state_key):
        with self.processing_lock:
            self.processing_files.discard(state_key)

    def _file_signature(self, file_path):
        try:
            stat = file_path.stat()
            return stat.st_mtime_ns, stat.st_size
        except Exception as e:
            self.log("读取文件状态失败: %s, 原因: %s" % (file_path, e))
            return None

    def _safe_mtime(self, file_path):
        try:
            return file_path.stat().st_mtime
        except Exception:
            return 0

    def _get_backup_dir(self, row):
        backup_path = str(row.get("backup_path", "")).strip()
        if backup_path:
            return Path(backup_path)
        return Path(self._default_backup_path(row["source_path"]))

    def _backup_and_remove_file(self, row, file_path):
        source_path = row["source_path"]
        row_index = row["row_index"]
        backup_dir = self._get_backup_dir(row)

        if os.path.normcase(os.path.normpath(str(source_path))) == os.path.normcase(os.path.normpath(str(backup_dir))):
            self.log("第%d行备份目录不能与本地目录相同: %s" % (row_index, backup_dir))
            return False

        try:
            backup_dir.mkdir(parents=True, exist_ok=True)
        except Exception as e:
            self.log("第%d行创建备份目录失败: %s, 原因: %s" % (row_index, backup_dir, e))
            return False

        if not file_path.exists():
            self.log("第%d行源文件已不存在，视为已备份完成: %s" % (row_index, file_path.name))
            return True

        target = self._build_unique_backup_target(backup_dir, file_path)

        if self._move_file_transactional(file_path, target, row_index):
            self.log("第%d行源文件已转移至备份: %s -> %s" % (row_index, file_path.name, target))
            return True

        self.log("第%d行源文件备份转移失败: %s" % (row_index, file_path.name))
        return False

    def _build_unique_backup_target(self, backup_dir, file_path):
        timestamp = datetime.now().strftime("%Y%m%d_%H%M%S_%f")
        base_name = file_path.stem
        suffix = file_path.suffix
        candidate = backup_dir / ("%s_%s%s" % (base_name, timestamp, suffix))
        index = 1
        while candidate.exists():
            candidate = backup_dir / ("%s_%s_%d%s" % (base_name, timestamp, index, suffix))
            index += 1
        return candidate

    def _move_file_transactional(self, source_file, target_file, row_index):
        try:
            source_file.rename(target_file)
            return True
        except FileNotFoundError:
            self.log("第%d行源文件在备份时已被处理，忽略重复备份: %s" % (row_index, source_file.name))
            return True
        except Exception:
            pass

        temp_target = target_file.parent / ("%s.__tmp__.%d" % (target_file.name, int(time.time() * 1000)))
        try:
            shutil.copy2(str(source_file), str(temp_target))
            if target_file.exists():
                target_file = self._build_unique_backup_target(target_file.parent, source_file)
            temp_target.replace(target_file)
        except Exception as e:
            try:
                if temp_target.exists():
                    temp_target.unlink()
            except Exception:
                pass
            self.log("第%d行复制到备份目录失败: %s, 原因: %s" % (row_index, source_file.name, e))
            return False

        if self._delete_source_with_retry(source_file):
            return True

        try:
            if target_file.exists():
                target_file.unlink()
        except Exception as rollback_error:
            self.log("第%d行回滚备份文件失败: %s, 原因: %s" % (row_index, target_file, rollback_error))
        return False

    def _delete_source_with_retry(self, file_path, retry_times=6, retry_interval=0.3):
        for idx in range(max(1, retry_times)):
            try:
                file_path.unlink()
                return True
            except FileNotFoundError:
                return True
            except Exception as e:
                if idx < retry_times - 1:
                    time.sleep(retry_interval)
                    continue
                self.log("删除源文件失败: %s, 原因: %s" % (file_path.name, e))
                return False
        return False

    def _upload_file(self, row, file_path):
        url = self._base_url() + "/collector/client/upload"
        data = {
            "site": row["site"],
            "buNo": row["bu_no"],
            "equipmentNo": row["equipment_no"],
        }

        try:
            with open(file_path, "rb") as fp:
                files = {"file": (file_path.name, fp, "application/octet-stream")}
                resp = self.http_session.post(url, data=data, files=files, timeout=180)

            resp.raise_for_status()
            result = resp.json()
            if result.get("code") == 0:
                response_data = result.get("data") or {}
                server_path = response_data.get("savedFullPath", "")
                self.log("第%d行上传成功: %s -> %s" % (row["row_index"], file_path.name, server_path))
                return True

            self.log("第%d行上传失败: %s, 原因: %s" % (
                row["row_index"], file_path.name, result.get("msg")))
            return False
        except Exception as e:
            self.log("第%d行上传异常: %s, 原因: %s" % (row["row_index"], file_path.name, e))
            return False

    def _log_with_interval(self, key, message, seconds):
        now = time.time()
        last = self.notice_ts.get(key, 0)
        if now - last >= seconds:
            self.notice_ts[key] = now
            self.log(message)

    def log(self, message):
        self.log_queue.put("[%s] %s" % (datetime.now().strftime("%H:%M:%S"), message))

    def _flush_logs(self):
        while not self.log_queue.empty():
            line = self.log_queue.get()
            self.log_text.configure(state=NORMAL)
            self.log_text.insert(END, line + "\n")
            self.log_text.see(END)
            self.log_text.configure(state=DISABLED)
        self.root.after(200, self._flush_logs)


if __name__ == "__main__":
    instance_lock_handle, is_primary = acquire_single_instance_lock()
    if not is_primary:
        notify_existing_instance_show()
        sys.exit(0)

    app_root = Tk()
    app = CollectorApp(app_root)
    app_root.mainloop()

    if instance_lock_handle and os.name == "nt":
        try:
            import ctypes
            ctypes.windll.kernel32.CloseHandle(instance_lock_handle)
        except Exception:
            pass