"""中国邮政揽收系统 - Excel 自动填单工具

主程序入口，提供 Tkinter GUI 界面。
"""

import asyncio
import json
import os
import sys
import threading
from datetime import datetime
from tkinter import (
    BOTH,
    BOTTOM,
    DISABLED,
    END,
    HORIZONTAL,
    LEFT,
    NORMAL,
    RIGHT,
    VERTICAL,
    X,
    Y,
    BooleanVar,
    Button,
    Checkbutton,
    Entry,
    Frame,
    Label,
    LabelFrame,
    Listbox,
    Scrollbar,
    StringVar,
    Text,
    Tk,
    Toplevel,
    filedialog,
    messagebox,
    ttk,
)

from excel_reader import read_input_excel, validate_required_columns
from field_mapping import get_defaults, get_field_mapping, get_fixed_values, get_timing_config, load_config
from log import user as _log_user

# ─── 全局引擎引用 ──────────────────────────────────────────

_engine = None
_loop = None

def _get_writable_path(name: str) -> str:
    """获取可写文件路径（config.json, session.json）。

    开发模式：脚本所在目录。
    打包模式：exe 所在目录（_MEIPASS 是只读的）。
    """
    if getattr(sys, 'frozen', False):
        return os.path.join(os.path.dirname(sys.executable), name)
    else:
        return os.path.join(os.path.dirname(os.path.abspath(__file__)), name)

def _get_config_path():
    return _get_writable_path("config.json")
def _get_session_path():
    return _get_writable_path("session.json")

def _resource_path(relative_path):
    """获取只读资源文件路径（pickup.ico 等）。

    开发模式：脚本所在目录。
    打包模式：_MEIPASS（PyInstaller 解压临时目录）。
    """
    if getattr(sys, 'frozen', False):
        return os.path.join(sys._MEIPASS, relative_path)
    else:
        return os.path.join(os.path.dirname(os.path.abspath(__file__)), relative_path)

# ─── 异步引擎后台线程 ──────────────────────────────────────

def _run_async(coro):
    """在新线程中运行异步协程。"""
    global _loop
    _loop = asyncio.new_event_loop()
    asyncio.set_event_loop(_loop)
    _loop.run_until_complete(coro)

def _run_in_thread(coro):
    """在后台线程启动异步任务。"""
    t = threading.Thread(target=_run_async, args=(coro,), daemon=True)
    t.start()
    return t

# ─── 主窗口 ────────────────────────────────────────────────

class App:
    def __init__(self):
        self.root = Tk()
        self.root.title("自动填单工具 v2.0")
        self.root.geometry("900x650")
        self.root.minsize(800, 550)
        if sys.platform == "win32":
            self.root.iconbitmap(_resource_path("pickup.ico"))
        else:
            # 在 Linux 上什么都不做，或者用 .xbm 文件
            # self.root.iconbitmap(_resource_path("pickup.xbm"))
            pass
    
        self.config = {}
        self.excel_path = StringVar()
        self.delay_var = StringVar(value="500")
        self.status_var = StringVar(value="就绪")
        self.engine_status_var = StringVar(value="未启动")
        self.running = False
        self.paused = False
        self.results = []

        # 固定值编辑框变量
        self.fv_product = StringVar()
        self.fv_customer = StringVar()
        self.fv_destination = StringVar()
        self.fv_force_destination = BooleanVar()
        self.fv_district_code = StringVar()
        self.fv_force_district = BooleanVar()
        self.fv_sender_name = StringVar()
        self.fv_force_sender_name = BooleanVar()
        self.fv_sender_addr = StringVar()
        self.fv_force_sender_addr = BooleanVar()

        # 搜索基础设施（懒加载）
        self._search_bridge = None
        self._search_sess = None
        self._search_api = None
        self._loading_config = False
        self._search_debounce = None

        # 产品/客户预缓存（batch 期间复用）
        self._product_cached_choice = None
        self._product_cached_detail = None
        self._customer_cached_choice = None
        self._customer_cached_detail = None
        self._sender_realname_cached = None

        self._build_ui()

        # 监听固定值输入框变化，触发产品/客户搜索
        self.fv_product.trace_add("write", self._on_product_change)
        self.fv_customer.trace_add("write", self._on_customer_change)

        # 关闭窗口时清理
        self.root.protocol("WM_DELETE_WINDOW", self._on_close)

        # 日志统一输出到 stderr（终端 / 控制台窗口可见）

        self._load_config()

    def _build_ui(self):
        """构建界面。"""
        # ── 配置区 ──
        config_frame = LabelFrame(self.root, text="配置", padx=10, pady=5)
        config_frame.pack(fill=X, padx=10, pady=5)

        # 引擎状态
        row_status = Frame(config_frame)
        row_status.pack(fill=X, pady=2)
        Label(row_status, text="引擎状态:", width=10, anchor="e").pack(side="left")
        self.status_label = Label(row_status, textvariable=self.engine_status_var, fg="gray")
        self.status_label.pack(side="left", padx=5)

        # Excel 文件
        row2 = Frame(config_frame)
        row2.pack(fill=X, pady=2)
        Label(row2, text="Excel文件:", width=10, anchor="e").pack(side="left")
        self.file_label = Label(row2, text="未选择", fg="gray", anchor="w")
        self.file_label.pack(side="left", fill=X, expand=True, padx=5)
        Button(row2, text="选择文件", command=self._pick_file, width=10).pack(
            side="right"
        )

        # 延时设置
        row3 = Frame(config_frame)
        row3.pack(fill=X, pady=2)
        Label(row3, text="间隔(毫秒):", width=10, anchor="e").pack(side="left")
        Entry(row3, textvariable=self.delay_var, width=8).pack(side="left", padx=5)
        Label(row3, text="(每单提交之间的等待时间)", fg="gray").pack(side="left")

        # 按钮
        btn_frame = Frame(config_frame)
        btn_frame.pack(fill=X, pady=5)
        self.login_btn = Button(
            btn_frame, text="🔑 登录", command=self._do_login, width=8
        )
        self.login_btn.pack(side="left", padx=2)
        self.start_btn = Button(
            btn_frame, text="▶ 开始处理", command=self._start, bg="#4CAF50",
            fg="white", width=12, height=1
        )
        self.start_btn.pack(side="left", padx=2)
        self.pause_btn = Button(
            btn_frame, text="⏸ 暂停", command=self._pause, width=10, state=DISABLED
        )
        self.pause_btn.pack(side="left", padx=2)
        self.stop_btn = Button(
            btn_frame, text="⏹ 停止", command=self._stop, width=10, state=DISABLED
        )
        self.stop_btn.pack(side="left", padx=2)

        # 状态
        Label(
            btn_frame, textvariable=self.status_var, fg="blue"
        ).pack(side="right", padx=10)

        # ── 固定值设置 ──
        fixed_frame = LabelFrame(self.root, text="固定值设置", padx=10, pady=5)
        fixed_frame.pack(fill=X, padx=10, pady=5)

        # Row 0: 产品 | 客户
        r0 = Frame(fixed_frame)
        r0.pack(fill=X, pady=2)
        Label(r0, text="产品:", width=10, anchor="e").pack(side="left")
        self.fv_product_entry = Entry(r0, textvariable=self.fv_product, width=20)
        self.fv_product_entry.pack(side="left", padx=5)
        Label(r0, text="客户:", width=10, anchor="e").pack(side="left", padx=(30, 0))
        self.fv_customer_entry = Entry(r0, textvariable=self.fv_customer, width=20)
        self.fv_customer_entry.pack(side="left", padx=5)

        # Row 1: 寄达地 | 无影响
        r1 = Frame(fixed_frame)
        r1.pack(fill=X, pady=2)
        Label(r1, text="寄达地:", width=10, anchor="e").pack(side="left")
        Entry(r1, textvariable=self.fv_destination, width=20).pack(side="left", padx=5)
        Checkbutton(r1, text="强制覆盖", variable=self.fv_force_destination).pack(side="left", padx=5)
        Label(r1, text="无影响", fg="gray", font=("", 8)).pack(side="left")

        # Row 2: 寄达地区划代码 | 强制覆盖 | 直接决定寄达地
        r2 = Frame(fixed_frame)
        r2.pack(fill=X, pady=2)
        Label(r2, text="寄达地区划代码:", width=12, anchor="e").pack(side="left")
        Entry(r2, textvariable=self.fv_district_code, width=20).pack(side="left", padx=5)
        Checkbutton(r2, text="强制覆盖", variable=self.fv_force_district).pack(side="left", padx=5)
        Label(r2, text="（直接决定寄达地）", fg="gray", font=("", 8)).pack(side="left")

        # Row 3: 寄件人姓名 | 强制覆盖
        r3 = Frame(fixed_frame)
        r3.pack(fill=X, pady=2)
        Label(r3, text="寄件人姓名:", width=12, anchor="e").pack(side="left")
        Entry(r3, textvariable=self.fv_sender_name, width=20).pack(side="left", padx=5)
        Checkbutton(r3, text="强制覆盖", variable=self.fv_force_sender_name).pack(side="left", padx=5)

        # Row 4: 寄件地址 | 强制覆盖
        r4 = Frame(fixed_frame)
        r4.pack(fill=X, pady=2)
        Label(r4, text="寄件地址:", width=12, anchor="e").pack(side="left")
        Entry(r4, textvariable=self.fv_sender_addr, width=20).pack(side="left", padx=5)
        Checkbutton(r4, text="强制覆盖", variable=self.fv_force_sender_addr).pack(side="left", padx=5)

        # ── 进度条 ──
        progress_frame = Frame(self.root)
        progress_frame.pack(fill=X, padx=10, pady=2)
        self.progress = ttk.Progressbar(
            progress_frame, mode="determinate", length=100
        )
        self.progress.pack(fill=X)
        self.progress_label = Label(progress_frame, text="", fg="gray")
        self.progress_label.pack()

        # ── 提交结果表格 ──
        result_frame = LabelFrame(self.root, text="提交结果", padx=10, pady=5)
        result_frame.pack(fill="both", expand=True, padx=10, pady=5)

        columns = ("单号", "处理状态", "重量", "产品", "客户", "寄达地区划代码", "寄件人姓名", "寄件地址")
        self.result_tree = ttk.Treeview(result_frame, columns=columns, show="headings", height=8)
        col_widths = [140, 80, 60, 110, 110, 110, 80, 160]
        for col, width in zip(columns, col_widths):
            self.result_tree.heading(col, text=col)
            self.result_tree.column(col, width=width, anchor="center")
        self.result_tree.pack(side="left", fill="both", expand=True)

        scroll_y = Scrollbar(result_frame, orient=VERTICAL, command=self.result_tree.yview)
        scroll_y.pack(side=RIGHT, fill=Y)
        self.result_tree.configure(yscrollcommand=scroll_y.set)

    # ─── 配置管理 ───────────────────────────────────────────

    def _load_config(self):
        """加载配置文件。首次运行时弹出免责声明，同意后从 _MEIPASS 复制到 exe 目录。"""
        try:
            self._loading_config = True
            config_path = _get_config_path()

            # 首次运行：config.json 不存在，显示免责声明
            if not os.path.exists(config_path):
                disclaimer_path = _resource_path("免责声明.txt")
                try:
                    with open(disclaimer_path, "r", encoding="utf-8") as f:
                        disclaimer_text = f.read()
                except Exception:
                    disclaimer_text = "免责声明文件未找到。使用本软件即表示您同意承担相关责任。"

                agreed = [False]

                def on_agree():
                    agreed[0] = True
                    win.destroy()

                def on_disagree():
                    win.destroy()

                win = Toplevel(self.root)
                win.title("免责声明")
                win.geometry("500x420")
                win.transient(self.root)
                win.grab_set()
                win.resizable(False, False)

                Label(win, text="首次启动 — 请阅读免责声明", font=("", 11, "bold"), pady=10).pack()

                text_frame = Frame(win)
                text_frame.pack(fill="both", expand=True, padx=15, pady=5)
                text = Text(text_frame, wrap="word", font=("", 10), state=DISABLED)
                text.pack(side="left", fill="both", expand=True)
                text.configure(state=NORMAL)
                text.insert("1.0", disclaimer_text)
                text.configure(state=DISABLED)

                btn_frame = Frame(win)
                btn_frame.pack(pady=12)
                Button(btn_frame, text="同意", command=on_agree, bg="#4CAF50", fg="white",
                       width=10, height=1).pack(side="left", padx=10)
                Button(btn_frame, text="不同意", command=on_disagree, bg="red", fg="white",
                       width=10).pack(side="left", padx=10)

                win.protocol("WM_DELETE_WINDOW", on_disagree)
                win.wait_window()

                if not agreed[0]:
                    self.root.destroy()
                    sys.exit(0)

                # 复制默认 config 到可写目录
                bundled = _resource_path("config.json")
                if os.path.exists(bundled):
                    import shutil
                    shutil.copy2(bundled, config_path)

            self.config = load_config(config_path)
            timing = get_timing_config(self.config)
            delay_ms = timing.get("delay_between_rows_ms", 500)
            self.delay_var.set(str(delay_ms))

            # 加载固定值到编辑框
            fv = self.config.get("fixed_values", {})
            self.fv_product.set(fv.get("产品名称", {}).get("value", ""))
            self.fv_customer.set(fv.get("客户名称", {}).get("value", ""))
            self.fv_destination.set(fv.get("寄达地", {}).get("value", ""))
            self.fv_force_destination.set(fv.get("寄达地", {}).get("force", False))
            self.fv_district_code.set(fv.get("寄达地区划", {}).get("value", ""))
            self.fv_force_district.set(fv.get("寄达地区划", {}).get("force", False))
            self.fv_sender_name.set(fv.get("寄件人", {}).get("value", ""))
            self.fv_force_sender_name.set(fv.get("寄件人", {}).get("force", False))
            self.fv_sender_addr.set(fv.get("寄件地址", {}).get("value", ""))
            self.fv_force_sender_addr.set(fv.get("寄件地址", {}).get("force", False))
            self._loading_config = False

            # 检查已保存的登录会话
            self._check_session_status()
        except Exception as e:
            self._log(f"[error] 配置加载失败: {e}")
            messagebox.showwarning("配置错误", f"配置文件加载失败:\n{e}")

    def _check_session_status(self):
        """检查已保存的登录会话状态并更新 UI。"""
        try:
            from login_helper import load_session_info
            info = load_session_info()
            if info and len(info.get("cookies", [])) > 0:
                self.engine_status_var.set(f"已登录 ({len(info['cookies'])} cookies)")
                self.status_label.configure(fg="green")
            else:
                self.engine_status_var.set("未登录")
                self.status_label.configure(fg="orange")
        except Exception:
            self.engine_status_var.set("未登录")
            self.status_label.configure(fg="orange")

    # ─── 固定值保存 ────────────────────────────────────────

    def _save_fixed_from_entries(self):
        """从编辑框保存固定值到 config.json。"""
        new_fixed = {
            "产品名称": {"value": self.fv_product.get().strip(), "force": False},
            "客户名称": {"value": self.fv_customer.get().strip(), "force": False},
            "寄达地": {"value": self.fv_destination.get().strip(), "force": self.fv_force_destination.get()},
            "寄达地区划": {"value": self.fv_district_code.get().strip(), "force": self.fv_force_district.get()},
            "寄件人": {"value": self.fv_sender_name.get().strip(), "force": self.fv_force_sender_name.get()},
            "寄件地址": {"value": self.fv_sender_addr.get().strip(), "force": self.fv_force_sender_addr.get()},
        }
        self.config["fixed_values"] = new_fixed

        config_path = _get_config_path()
        with open(config_path, "r", encoding="utf-8") as f:
            cfg = json.load(f)
        cfg["fixed_values"] = new_fixed
        with open(config_path, "w", encoding="utf-8") as f:
            json.dump(cfg, f, ensure_ascii=False, indent=4)

    def _add_result_row(self, result):
        """添加一行到结果表格。"""
        values = (
            result.get("单号", ""),
            result.get("status", ""),
            result.get("重量", ""),
            result.get("产品", ""),
            result.get("客户", ""),
            result.get("寄达地区划代码", ""),
            result.get("寄件人姓名", ""),
            result.get("寄件地址", ""),
        )
        self.result_tree.insert("", "end", values=values)

    # ─── 产品/客户搜索 ──────────────────────────────────────

    def _init_search_infra(self):
        """在登录后（或重新登录后）初始化搜索基础设施（token bridge + session + api）。"""
        # 销毁旧的基础设施（可能是过期 cookies 的 session）
        if self._search_bridge:
            self._search_bridge.stop()
        self._search_bridge = None
        self._search_sess = None
        self._search_api = None

        try:
            from pickup_api import TokenBridge, PickupSession, PickupAPI
            config = load_config(_get_config_path())
            url = config.get("system", {}).get("url", "https://10.4.188.1/pickup-web/a/postwaybill/main")

            self._search_bridge = TokenBridge()
            self._search_bridge.start()
            self._search_sess = PickupSession(url)
            session_path = _get_session_path()
            if not self._search_sess.load_session(session_path):
                self._search_bridge.stop()
                self._search_bridge = None
                self._search_sess = None
                self._log("[error] 搜索初始化失败：未找到登录会话")
                return
            resources = self._search_sess.fetch_page_resources()
            minimal_html = (
                f"<html><head><script>"
                f"$_ts=window['$_ts']||{{}};"
                f"$_ts.nsd={resources['ts_nsd']};"
                f'$_ts.cd="{resources["ts_cd"]}";'
                f"</script></head><body></body></html>"
            )
            self._search_bridge.initialize(minimal_html, resources["scripts"], resources["base_url"])
            self._search_api = PickupAPI(self._search_sess, self._search_bridge)
            try:
                self._search_api.query_ecommerce("B")
                self._search_api.query_deliver_date()
                self._search_api.check_sheet_warning()
            except Exception:
                pass
        except Exception as e:
            self._log(f"[error] 搜索初始化失败: {e}")
            if self._search_bridge:
                self._search_bridge.stop()
                self._search_bridge = None
            self._search_sess = None

    def _on_product_change(self, *args):
        if self._loading_config:
            return
        if self._search_debounce:
            self.root.after_cancel(self._search_debounce)
        keyword = self.fv_product.get().strip()
        if not keyword or len(keyword) < 1:
            return
        self._search_debounce = self.root.after(300, lambda: self._do_product_search(keyword))

    def _on_customer_change(self, *args):
        if self._loading_config:
            return
        if self._search_debounce:
            self.root.after_cancel(self._search_debounce)
        keyword = self.fv_customer.get().strip()
        if not keyword or len(keyword) < 1:
            return
        self._search_debounce = self.root.after(300, lambda: self._do_customer_search(keyword))

    def _do_product_search(self, keyword: str):
        if self._search_api is None:
            return
        try:
            candidates = self._search_api.query_product(keyword)
            if not candidates:
                return
            names = [c.get("productName", "") for c in candidates]
            self._show_search_dropdown(
                self.fv_product_entry, names,
                lambda idx: self._on_product_selected(candidates[idx]),
            )
        except Exception as e:
            self._log(f"[error] 产品搜索失败: {e}")

    def _do_customer_search(self, keyword: str):
        if self._search_api is None:
            return
        try:
            candidates = self._search_api.query_customer(keyword)
            if not candidates:
                return
            names = [
                c.get("customerFullName", c.get("customerName", ""))
                for c in candidates
            ]
            self._show_search_dropdown(
                self.fv_customer_entry, names,
                lambda idx: self._on_customer_selected(candidates[idx]),
            )
        except Exception as e:
            self._log(f"[error] 客户搜索失败: {e}")

    def _show_search_dropdown(self, entry: Entry, options: list[str], on_select):
        """在输入框正下方弹出下拉候选列表。"""
        popup = Toplevel(self.root)
        popup.overrideredirect(True)
        popup.attributes("-topmost", True)

        # 定位在输入框正下方
        x = entry.winfo_rootx()
        y = entry.winfo_rooty() + entry.winfo_height()
        w = entry.winfo_width()
        popup.geometry(f"{w}x180+{x}+{y}")

        frame = Frame(popup, bd=1, relief="solid")
        frame.pack(fill="both", expand=True)

        listbox = Listbox(frame, font=("", 10), selectmode="browse", activestyle="none")
        scroll = Scrollbar(frame, orient=VERTICAL, command=listbox.yview)
        listbox.configure(yscrollcommand=scroll.set)
        scroll.pack(side=RIGHT, fill=Y)
        listbox.pack(side=LEFT, fill=BOTH, expand=True)
        for opt in options:
            listbox.insert(END, opt)

        def select(e=None):
            sel = listbox.curselection()
            if sel:
                popup.destroy()
                on_select(sel[0])

        def cancel(e=None):
            popup.destroy()

        listbox.bind("<ButtonRelease-1>", select)
        listbox.bind("<Return>", select)
        listbox.bind("<Escape>", cancel)
        listbox.focus_set()
        if listbox.size() > 0:
            listbox.selection_set(0)

        # 点击外部关闭
        def on_focus_out(e):
            popup.after(150, lambda: popup.destroy() if not popup.focus_get() else None)
        popup.bind("<FocusOut>", on_focus_out)

        popup.wait_window()

    def _on_product_selected(self, choice: dict):
        """产品选中：缓存选择并获取详情。"""
        self._product_cached_choice = choice
        self._loading_config = True  # 阻止 trace 再次触发搜索
        self.fv_product.set(choice.get("productName", ""))
        self._loading_config = False
        # 获取产品详情
        try:
            biz_id = choice.get("productId", "")
            biz_no = choice.get("bizProductNo", "")
            if biz_id and biz_no and self._search_api:
                self._product_cached_detail = self._search_api.select_product(biz_id, biz_no)
        except Exception as e:
            self._log(f"[error] 获取产品详情失败: {e}")
            self._product_cached_detail = {}

    def _on_customer_selected(self, choice: dict):
        """客户选中：缓存选择并获取详情和寄件人实名。"""
        self._customer_cached_choice = choice
        self._loading_config = True  # 阻止 trace 再次触发搜索
        self.fv_customer.set(choice.get("customerFullName", choice.get("customerName", "")))
        self._loading_config = False
        # 获取客户详情
        try:
            cust_id = choice.get("customerId", "")
            if cust_id and self._search_api:
                detail = self._search_api.select_customer(str(cust_id))
                if isinstance(detail, dict) and "_text" not in detail:
                    self._customer_cached_detail = detail
                    base = detail.get("baseCustome", {}) if isinstance(detail.get("baseCustome"), dict) else {}
                    sender_no = base.get("businessCode") or base.get("customerSubCode") or ""
                    if sender_no:
                        self._sender_realname_cached = self._search_api.find_sender_history(str(sender_no))
        except Exception as e:
            self._log(f"[error] 获取客户详情失败: {e}")
            self._customer_cached_detail = {}

    # ─── 文件选择 ───────────────────────────────────────────

    def _pick_file(self):
        path = filedialog.askopenfilename(
            title="选择 Excel 文件",
            filetypes=[("Excel 文件", "*.xlsx"), ("所有文件", "*.*")],
        )
        if path:
            self.excel_path.set(path)
            self.file_label.configure(text=path, fg="black")

    def _on_close(self):
        """关闭窗口；atexit 会强制清理 Node.js 子进程。"""
        global _engine
        if _engine:
            _engine.request_stop()
        if self._search_bridge:
            self._search_bridge.stop()
        self.root.destroy()

    # ─── 控制按钮 ───────────────────────────────────────────

    def _do_login(self):
        """弹窗让用户粘贴一键导出的 cookies JSON。"""
        from login_helper import parse_json_and_save, load_session_info

        win = Toplevel(self.root)
        win.title("登录揽收系统")
        win.geometry("620x360")
        win.transient(self.root)
        win.grab_set()

        Label(win, text="登录揽收系统", font=("", 12, "bold"), pady=8).pack()

        Label(win, text="使用 Cookies 导出工具，将 10.4.188.1 的所有 cookies 导出为 JSON，粘贴到下方：").pack(anchor="w", padx=10)

        json_text = Text(win, height=12, wrap="word", font=("Consolas", 9))
        json_text.pack(fill=BOTH, expand=True, padx=10, pady=5)

        def do_save():
            try:
                n = parse_json_and_save(json_text.get("1.0", "end-1c"))
                self.engine_status_var.set("已登录")
                self.status_label.configure(fg="green")
                self._check_session_status()
                self._init_search_infra()
                win.destroy()
            except Exception as e:
                messagebox.showerror("解析失败", f"JSON 解析失败:\n{e}", parent=win)

        btn_f = Frame(win)
        btn_f.pack(pady=10)
        Button(btn_f, text="保存并关闭", command=do_save,
               bg="#4CAF50", fg="white", width=15, height=1).pack()

        info = load_session_info()
        if info:
            Label(win, text=f"当前已保存: {len(info.get('cookies', []))} 个 cookies",
                  fg="gray").pack()

    def _start(self):
        if self.running:
            return

        if not self.excel_path.get():
            messagebox.showwarning("提示", "请先选择 Excel 文件")
            return

        try:
            rows, headers = read_input_excel(self.excel_path.get())
        except Exception as e:
            messagebox.showerror("读取错误", f"读取 Excel 失败:\n{e}")
            return

        if not rows:
            messagebox.showwarning("提示", "Excel 中没有数据")
            return

        # 保存固定值到配置文件（必须在验证之前，确保用户选择的产品/客户已写入 config）
        self._save_fixed_from_entries()

        # 验证必要字段是否有数据来源（固定值 > Excel > 默认值）
        fixed_values = get_fixed_values(self.config)
        defaults = get_defaults(self.config)
        missing = validate_required_columns(headers, fixed_values, defaults)
        if missing:
            msg = (
                f"以下字段在所有来源中均未找到值:\n"
                + "\n".join(f"  - {c}（请填入Excel / 固定值 / 默认值任一）" for c in missing)
            )
            messagebox.showwarning("缺少必要字段", msg)
            return

        self.running = True
        self.paused = False
        self._set_controls_state("running")

        # 清空结果表格
        for item in self.result_tree.get_children():
            self.result_tree.delete(item)

        # 创建结果工作簿
        self.results = []

        # 更新配置中的延时
        try:
            delay_ms = int(self.delay_var.get())
            self.config.setdefault("timing", {})["delay_between_rows_ms"] = delay_ms
        except ValueError:
            pass

        self._log(f"开始处理 {len(rows)} 条记录...")
        self.progress["maximum"] = len(rows)
        self.progress["value"] = 0
        self.progress_label.configure(text=f"0 / {len(rows)}")

        # 在后台线程启动异步引擎
        _run_in_thread(self._run_engine(rows, headers))

    async def _run_engine(self, rows, headers):
        """后台运行引擎（在 async 线程中执行）。"""
        global _engine

        try:
            from engine import PickupEngine

            field_mapping = get_field_mapping(self.config)
            defaults = get_defaults(self.config)
            timing = get_timing_config(self.config)
            fixed_values = get_fixed_values(self.config)

            _engine = PickupEngine(
                url="https://10.4.188.1/pickup-web/a/postwaybill/main",
                field_mapping=field_mapping,
                defaults=defaults,
                timing=timing,
                log_callback=self._log_async,
                fixed_values=fixed_values,
                choose_callback=self._choose_callback,
                confirm_callback=self._confirm_callback,
            )

            # 注入已缓存的搜索基础设施和产品/客户选择
            if self._search_api is not None:
                _engine.inject_infrastructure(self._search_sess, self._search_bridge, self._search_api)
            if self._product_cached_choice is not None:
                _engine._product_choice = self._product_cached_choice
            if self._product_cached_detail is not None:
                _engine._product_detail = self._product_cached_detail
            if self._customer_cached_choice is not None:
                _engine._customer_choice = self._customer_cached_choice
            if self._customer_cached_detail is not None:
                _engine._customer_detail = self._customer_cached_detail
            if self._sender_realname_cached is not None:
                _engine._sender_realname = self._sender_realname_cached

            self._update_status("启动中...")
            try:
                await _engine.start()
            except Exception as e:
                self._log_async(f"[error] 启动失败: {e}")
                self._update_status("启动失败")
                await _engine.stop()
                return

            # 验证已加载了 session，且包含关键 cookie
            if not _engine._sess or not _engine._sess._http.cookies:
                self._log_async("[提示] 未找到登录会话，请点击'登录'按钮完成登录后再开始处理")
                self._update_status("未登录")
                await _engine.stop()
                return
            cookie_names = {c.name for c in _engine._sess._http.cookies}
            missing = [n for n in ("JSESSIONID", "jdpt.session.id") if n not in cookie_names]
            if missing:
                self._log_async(f"[提示] 缺少关键 cookie: {', '.join(missing)}，请重新登录并手动填写")
                self._update_status("未登录")
                await _engine.stop()
                return

            # 初始化页面资源和 token bridge
            try:
                await _engine.begin_processing()
                self._update_status("后台运行中")
                self._log_async("HTTP API 引擎已就绪")
            except Exception as e:
                self._log_async(f"[error] 初始化失败: {e}")
                self._update_status("启动失败")
                await _engine.stop()
                return

            for i, row in enumerate(rows):
                if _engine._stop_requested:
                    break

                result = await _engine.process_single_row(row)
                self.results.append(result)

                # 更新结果表格
                self.root.after(0, lambda r=result: self._add_result_row(r))

                # 更新进度
                self.root.after(0, lambda cur=i+1, total=len(rows): self._update_progress(cur, total))

                # 行间延时
                delay = timing.get("delay_between_rows_ms", 3000) / 1000
                if i < len(rows) - 1:
                    await asyncio.sleep(delay)

            self._log_async(f"\n处理完成！共处理 {len(self.results)} 条记录")

        except Exception as e:
            self._log_async(f"[error] 引擎异常: {e}")
            import traceback
            traceback.print_exc()
        finally:
            if _engine:
                await _engine.stop()
            self.root.after(0, self._on_finished)

    def _update_progress(self, current, total):
        self.progress["value"] = current
        self.progress_label.configure(text=f"{current} / {total}")
        self.status_var.set(f"处理中: {current}/{total}")

    def _on_finished(self):
        global _engine
        self.running = False
        self.paused = False
        _engine = None
        self._set_controls_state("stopped")
        self.status_var.set("就绪")
        # 清空产品/客户输入框（batch 结束后重置）
        self.fv_product.set("")
        self.fv_customer.set("")
        # 清空缓存的选择
        self._product_cached_choice = None
        self._product_cached_detail = None
        self._customer_cached_choice = None
        self._customer_cached_detail = None
        self._sender_realname_cached = None

    def _pause(self):
        global _engine
        if not self.running:
            return
        if self.paused:
            self.paused = False
            if _engine:
                _engine.resume()
            self.pause_btn.configure(text="⏸ 暂停")
            self.status_var.set("处理中...")
            self._log("已恢复")
        else:
            self.paused = True
            if _engine:
                _engine.request_pause()
            self.pause_btn.configure(text="▶ 继续")
            self.status_var.set("已暂停")
            self._log("已暂停")

    def _stop(self):
        global _engine
        self.running = False
        if _engine:
            _engine.request_stop()
        self._set_controls_state("stopped")
        self.status_var.set("正在停止...")
        self._log("用户停止")

    def _set_controls_state(self, state):
        if state == "running":
            self.start_btn.configure(state=DISABLED)
            self.pause_btn.configure(state=NORMAL)
            self.stop_btn.configure(state=NORMAL)
        else:
            self.start_btn.configure(state=NORMAL)
            self.pause_btn.configure(state=DISABLED, text="⏸ 暂停")
            self.stop_btn.configure(state=DISABLED)

    # ─── 日志 ───────────────────────────────────────────────

    def _log(self, msg):
        """线程安全的日志输出。"""
        self.root.after(0, self._log_sync, msg)

    def _log_async(self, msg):
        """从异步线程调用（直接入队到 GUI 线程）。"""
        self.root.after(0, self._log_sync, msg)

    def _update_status(self, status: str):
        """更新引擎状态显示。"""
        color_map = {"后台运行中": "green", "启动失败": "red", "未登录": "orange"}
        self.root.after(0, lambda: self.engine_status_var.set(status))
        self.root.after(0, lambda s=status: self.status_label.configure(
            fg=color_map.get(s, "gray")
        ))


    async def _choose_callback(self, title: str, options: list[str]) -> int | None:
        """弹出选择框让用户从 autocomplete 结果中选择。返回索引或 None。"""
        loop = asyncio.get_event_loop()
        future = loop.create_future()
        result = {"index": None}

        def show():
            win = Toplevel(self.root)
            win.title(title)
            win.geometry("400x300")
            win.transient(self.root)
            win.grab_set()

            Label(win, text=f"请选择{title}，选择后批量复用：", pady=10).pack()

            frame = Frame(win)
            frame.pack(fill="both", expand=True, padx=10)
            listbox = Listbox(frame)
            scroll = Scrollbar(frame, orient=VERTICAL, command=listbox.yview)
            listbox.configure(yscrollcommand=scroll.set)
            scroll.pack(side=RIGHT, fill=Y)
            listbox.pack(side=LEFT, fill=BOTH, expand=True)

            for i, opt in enumerate(options):
                listbox.insert(END, f"[{i+1}] {opt}")

            def on_select():
                sel = listbox.curselection()
                if sel:
                    result["index"] = sel[0]
                win.destroy()

            listbox.bind("<Double-1>", lambda e: on_select())

            # 关闭窗口 → result["index"] 为 None → engine 停止 batch
            def on_cancel():
                result["index"] = None
                win.destroy()

            btn_frame = Frame(win)
            btn_frame.pack(pady=10)
            Button(btn_frame, text="确认选择", command=on_select,
                   bg="#4CAF50", fg="white", width=12).pack(side=LEFT, padx=5)
            Button(btn_frame, text="取消", command=on_cancel,
                   bg="red", fg="white", width=8).pack(side=LEFT, padx=5)

            win.protocol("WM_DELETE_WINDOW", on_cancel)
            listbox.focus_set()

            # 等窗口关闭后通知 async 线程
            def wait_then_resolve():
                win.wait_window()
                loop.call_soon_threadsafe(lambda: future.set_result(result["index"]))
            threading.Thread(target=wait_then_resolve, daemon=True).start()

        self.root.after(0, show)
        return await future

    async def _confirm_callback(self, fields: dict[str, str]) -> bool:
        """弹出确认框显示表单数据，用户确认后返回 True。"""
        loop = asyncio.get_event_loop()
        future = loop.create_future()
        result = {"confirmed": False}

        def show():
            win = Toplevel(self.root)
            win.title("确认提交信息 - 确认后自动批量处理")
            win.geometry("450x400")
            win.transient(self.root)
            win.grab_set()

            Label(win, text="请确认以下信息无误后点击确认：", pady=10,
                  font=("", 10, "bold")).pack()

            frame = Frame(win)
            frame.pack(fill=BOTH, expand=True, padx=20, pady=5)

            text = Text(frame, wrap="word", font=("Consolas", 10), height=16)
            text.pack(side=LEFT, fill=BOTH, expand=True)
            scroll = Scrollbar(frame, command=text.yview)
            scroll.pack(side=RIGHT, fill=Y)
            text.configure(yscrollcommand=scroll.set)

            # 系统标记（不展示）
            from engine import _SYSTEM_FLAGS
            sys_keys = set(_SYSTEM_FLAGS.keys())

            # 关键字段：始终展示，值也翻译为中文
            from field_mapping import reverse_translate
            key_fields = [
                ("产品名称", "bizProductName", ""),
                ("客户名称", "senders", ""),
                ("客户代码", "senderNo", ""),
                ("邮件号", "waybillNo", ""),
                ("重量(g)", "realWeight", ""),
                ("寄达地", "receiverArriveOrgName", ""),
                ("收件人", "receiverLinker", ""),
                ("收件人手机", "receiverMobile", ""),
                ("收件人地址", "receiverAddr", ""),
                ("寄件人", "senderLinker", ""),
                ("寄件人手机", "senderMobile", ""),
                ("寄件人地址", "senderAddr", ""),
                ("运输类型", "transferType", "运输类型"),
                ("内件属性", "contentsAttribute", "内件属性"),
                ("电商平台", "ecommerceNo", "电商平台"),
                ("付款方式", "paymentMode", "付款方式"),
                ("内件品名", "reserved5", ""),
                ("保价金额", "insuranceAmount", ""),
                ("代收货款", "codAmount", ""),
                ("备注", "senderNotes", ""),
            ]
            if not isinstance(fields, dict):
                text.insert(END, f"错误: 表单数据异常 ({type(fields).__name__})")
                text.configure(state=DISABLED)
                return
            shown = set()
            for label, key, col_name in key_fields:
                val = fields.get(key, "") or "空"
                if col_name and val != "空":
                    val = reverse_translate(col_name, val)
                text.insert(END, f"{label}: {val}\n")
                shown.add(key)
            # 展示其余非系统标记的有值字段
            for k, v in fields.items():
                if v and k not in shown and k not in sys_keys:
                    text.insert(END, f"{k}: {v}\n")
            text.configure(state=DISABLED)

            btn_frame = Frame(win)
            btn_frame.pack(pady=10)
            Button(btn_frame, text="确认提交",
                   command=lambda: (result.__setitem__("confirmed", True), win.destroy()),
                   bg="#4CAF50", fg="white", width=12, height=1).pack(side=LEFT, padx=10)
            Button(btn_frame, text="取消",
                   command=win.destroy,
                   bg="red", fg="white", width=10).pack(side=LEFT, padx=10)

            def wait_then_resolve():
                win.wait_window()
                loop.call_soon_threadsafe(lambda: future.set_result(result["confirmed"]))
            threading.Thread(target=wait_then_resolve, daemon=True).start()

        self.root.after(0, show)
        return await future

    def _log_sync(self, msg):
        _log_user(msg)

# ─── 入口 ──────────────────────────────────────────────────

def main():
    app = App()
    app.root.mainloop()

if __name__ == "__main__":
    main()