import tkinter as tk
from tkinter import ttk, messagebox, font
import json
import os
from loggings import LoggingManager
from appearance import appearance_manager


class NPCManager:
    def __init__(self, parent, reload_callback=None, logging_manager=None):
        print("Starting NPC Manager initialization...")
        try:
            self.parent = parent
            self.reload_callback = reload_callback
            self.logging_manager = logging_manager or LoggingManager(None)
            self.window = tk.Toplevel(parent)
            self.window.title("NPC Manager")

            # กำหนดขนาดหน้าต่างเริ่มต้น
            default_width = 1200
            default_height = 800

            # คำนวณตำแหน่งกลางจอ
            screen_width = parent.winfo_screenwidth()
            screen_height = parent.winfo_screenheight()

            x = (screen_width - default_width) // 2
            y = (screen_height - default_height) // 2

            # ตั้งค่าขนาดและตำแหน่ง
            self.window.withdraw()  # ซ่อนก่อนจัดตำแหน่ง
            self.window.geometry(f"{default_width}x{default_height}+{x}+{y}")
            self.window.minsize(800, 600)
            self.window.overrideredirect(True)
            self.window.configure(bg=appearance_manager.bg_color)

            print("Creating state variables...")
            # Initialize state variables
            self.current_section = None
            self.data = self.load_data()
            self.search_var = tk.StringVar()
            self.search_var.trace("w", self.on_search_change)

            print("Initializing font system...")
            # Font management initialization
            self.setup_font_system()
            self.window.after(100, lambda: self.on_font_change(None))

            print("Creating UI components...")
            # Create main UI components
            self.create_title_bar()
            self.create_main_layout()
            self.setup_entry_form()
            self.setup_json_display()

            print("Setting up resize handling...")
            # Setup resize functionality
            self.setup_resize_handling()

            print("Binding window events...")
            # Setup window event bindings
            self.bind_window_events()

            # อัพเดทการคำนวณทั้งหมด
            self.window.update_idletasks()

            print("Initialization complete")

        except Exception as e:
            print(f"Critical error during initialization: {e}")
            messagebox.showerror(
                "Initialization Error", f"Failed to initialize NPC Manager: {str(e)}"
            )
            raise

    def setup_font_system(self):
        """Initialize the font management system"""
        print("Setting up font system...")
        self.font_sizes = list(range(10, 29, 2))  # 10-28
        self.current_font_size = 16
        self.available_fonts = self.load_available_fonts()
        self.current_font = self.get_default_font()

        # Initialize font manager state
        self.font_manager = {
            "current": self.current_font,
            "available": self.available_fonts,
            "size": self.current_font_size,
        }
        print(f"Font system ready with {len(self.available_fonts)} fonts")

    def load_available_fonts(self):
        """Load and register fonts from project directory only"""
        custom_fonts = []
        project_dir = r"C:\Magicite Babel"

        try:
            if not os.path.exists(project_dir):
                return ["Arial"]

            # Map file names to display names
            font_mapping = {
                "BaiJamjuree-Light": "Bai Jamjuree Light.ttf",
                "Bai Jamjuree Light": "Bai Jamjuree Light.ttf",
                "FCMinimal": "FC Minimal",
                "NotoSansThaiLooped": "Noto Sans Thai Looped",
                # เพิ่มการ map อื่นๆ ตามที่ต้องการ
            }

            # อ่านฟอนต์จากโฟลเดอร์
            font_files = [
                f
                for f in os.listdir(project_dir)
                if f.lower().endswith((".ttf", ".otf"))
            ]

            for font_file in font_files:
                try:
                    base_name = os.path.splitext(font_file)[0]
                    # ใช้ชื่อที่ map ไว้ถ้ามี ไม่งั้นใช้ชื่อไฟล์
                    display_name = font_mapping.get(base_name, base_name)
                    custom_fonts.append(display_name)
                except Exception:
                    continue

            # เพิ่มฟอนต์พื้นฐาน
            basic_fonts = [
                "Bai Jamjuree Light",
                "FC minimal",
                "Arial",
                "Helvetica",
                "TkDefaultFont",
            ]
            available_fonts = list(set(custom_fonts + basic_fonts))
            return sorted(available_fonts)

        except Exception as e:
            return ["Arial"]

    def get_default_font(self):
        """Get appropriate default font"""
        preferred_fonts = [
            "Bai Jamjuree Light",
            "Arial",
            "Helvetica",
            "TkDefaultFont",
        ]
        for font_name in preferred_fonts:
            if font_name in self.available_fonts:
                return font_name

        # ถ้าไม่พบฟอนต์ที่ต้องการ ใช้ฟอนต์แรกที่มี
        return self.available_fonts[0] if self.available_fonts else "TkDefaultFont"

    def create_title_bar(self):
        """Create custom title bar"""
        print("Creating title bar...")
        # Title bar frame with gradient effect
        self.title_bar = tk.Frame(
            self.window, bg=appearance_manager.bg_color, height=40
        )
        self.title_bar.pack(fill="x", side="top")
        self.title_bar.pack_propagate(False)

        # Title label
        self.title_label = tk.Label(
            self.title_bar,
            text="NPC Manager",
            bg=appearance_manager.bg_color,
            fg="white",
            font=("Nasalization Rg", 14),
        )
        self.title_label.pack(side="left", padx=10)

        # Close button
        self.close_button = tk.Button(
            self.title_bar,
            text="×",
            bg=appearance_manager.bg_color,
            fg="white",
            bd=0,
            font=("Arial", 16),
            command=self.hide_window,
        )
        self.close_button.pack(side="right", padx=5)

        # Add drag functionality
        self.title_bar.bind("<Button-1>", self.start_move)
        self.title_bar.bind("<B1-Motion>", self.do_move)
        print("Title bar created")

    def setup_resize_handling(self):
        """Setup window resize functionality"""
        print("Setting up resize handling...")
        self.resize_handle = tk.Label(
            self.window,
            text="✦",
            bg="#2A2A2A",
            fg="white",
            font=("Arial", 12, "bold"),
            cursor="sizing",
        )
        self.resize_handle.place(relx=1, rely=1, anchor="se")

        self.resize_handle.bind("<Button-1>", self.start_resize)
        self.resize_handle.bind("<B1-Motion>", self.on_resize)
        self.resize_handle.bind("<ButtonRelease-1>", self.stop_resize)

        self.is_resizing = False
        print("Resize handling setup complete")

    def bind_window_events(self):
        """Bind various window events"""
        print("Binding window events...")
        self.window.bind("<Configure>", self.on_window_configure)
        self.window.bind("<Map>", lambda e: self.window.deiconify())
        self.window.bind("<Unmap>", lambda e: self.window.withdraw())
        print("Window events bound")

    def create_main_layout(self):
        """Create the main three-panel layout with visual separators"""
        print("Creating main layout...")
        # Main container
        self.main_container = tk.Frame(self.window, bg=appearance_manager.bg_color)
        self.main_container.pack(fill="both", expand=True, padx=10, pady=5)

        # Left panel (buttons) with border
        self.buttons_panel = tk.Frame(
            self.main_container, bg=appearance_manager.bg_color
        )
        self.buttons_panel.pack(side="left", fill="y", padx=(0, 1))

        # Vertical separator after buttons panel
        tk.Frame(self.main_container, width=2, bg="#404040").pack(
            side="left", fill="y", padx=5
        )

        # Middle panel (entry form) with border
        self.entry_panel = tk.Frame(
            self.main_container, bg=appearance_manager.bg_color, width=300
        )
        self.entry_panel.pack(side="left", fill="y", padx=(1, 1))
        self.entry_panel.pack_propagate(False)

        # Vertical separator after entry panel
        tk.Frame(self.main_container, width=2, bg="#404040").pack(
            side="left", fill="y", padx=5
        )

        # Right panel (JSON display)
        self.content_panel = tk.Frame(
            self.main_container, bg=appearance_manager.bg_color
        )
        self.content_panel.pack(side="right", fill="both", expand=True)

        # Create section buttons
        self.create_section_buttons()

        # Create font controls
        self.create_font_controls()
        print("Main layout created")

    def create_section_buttons(self):
        """Create section buttons with improved styling"""
        print("Creating section buttons...")
        sections = [
            ("MAIN CHARACTERS", "main_characters"),
            ("NPCS", "npcs"),
            ("LORE", "lore"),
            ("CHARACTER ROLES", "character_roles"),
            ("WORD FIXES", "word_fixes"),
        ]

        # Title for buttons section
        title_label = tk.Label(
            self.buttons_panel,
            text="EDIT-context",
            bg=appearance_manager.bg_color,
            fg="#808080",
            font=("FC Minimal", 10),
        )
        title_label.pack(pady=(0, 10))

        # เก็บปุ่มไว้ใน dictionary เพื่อเข้าถึงได้ง่าย
        self.section_buttons = {}

        for text, section in sections:
            button_frame = tk.Frame(self.buttons_panel, bg=appearance_manager.bg_color)
            button_frame.pack(fill="x", pady=2)

            btn = tk.Button(
                button_frame,
                text=text,
                font=("Nasalization Rg", 10),
                bg=appearance_manager.bg_color,
                fg="white",
                bd=0,
                activebackground="#FF4444",
                command=lambda s=section: self.show_section(s),
            )
            btn.pack(fill="x", padx=5)

            # เก็บปุ่มไว้ใน dictionary
            self.section_buttons[section] = btn

            # Hover effects
            btn.bind("<Enter>", lambda e, b=btn: b.configure(bg="#2A2A2A"))
            btn.bind("<Leave>", lambda e, b=btn: self.handle_button_leave(b))

    def handle_button_leave(self, button):
        """จัดการสีปุ่มเมื่อเมาส์ออก"""
        # ถ้าปุ่มนี้เป็นปุ่มที่เลือกอยู่ ให้คงสีเดิมไว้
        if hasattr(self, "current_section") and button == self.section_buttons.get(
            self.current_section
        ):
            button.configure(fg="yellow")
        else:
            button.configure(bg=appearance_manager.bg_color, fg="white")

    def create_font_controls(self):
        """Create font selection controls with automatic apply"""
        print("Creating font controls...")
        font_frame = tk.Frame(self.buttons_panel, bg=appearance_manager.bg_color)
        font_frame.pack(side="bottom", fill="x", pady=10)

        # Font section title
        tk.Label(
            font_frame,
            text="FONT SETTINGS",
            bg=appearance_manager.bg_color,
            fg="#808080",
            font=("Nasalization Rg", 12),
        ).pack(pady=(0, 5))

        # Font family selector
        self.font_var = tk.StringVar(value=self.current_font)
        font_dropdown = ttk.Combobox(
            font_frame,
            textvariable=self.font_var,
            values=self.available_fonts,
            width=20,
        )
        font_dropdown.pack(fill="x", padx=5, pady=2)

        # Auto-apply on selection
        font_dropdown.bind("<<ComboboxSelected>>", self.on_font_change)

        self.window.after(
            100, lambda: self.on_font_change(None)
        )  # Trigger font change after window creation

        # Font size controls
        size_frame = tk.Frame(font_frame, bg=appearance_manager.bg_color)
        size_frame.pack(fill="x", padx=5, pady=5)

        tk.Label(
            size_frame, text="Size:", bg=appearance_manager.bg_color, fg="white"
        ).pack(side="left")

        # Decrease size button
        tk.Button(
            size_frame,
            text="−",
            command=self.decrease_font_size,
            bg="#2A2A2A",
            fg="white",
            width=2,
            bd=0,
        ).pack(side="left", padx=2)

        # Size label
        self.size_label = tk.Label(
            size_frame,
            text=str(self.current_font_size),
            bg=appearance_manager.bg_color,
            fg="white",
            width=3,
        )
        self.size_label.pack(side="left", padx=2)

        # Increase size button
        tk.Button(
            size_frame,
            text="+",
            command=self.increase_font_size,
            bg="#2A2A2A",
            fg="white",
            width=2,
            bd=0,
        ).pack(side="left", padx=2)
        print("Font controls created")

    def setup_json_display(self):
        """Create the JSON display area with enhanced styling"""
        print("Setting up JSON display...")

        # Main container for JSON display
        self.display_frame = tk.Frame(
            self.content_panel, bg=appearance_manager.bg_color
        )
        self.display_frame.pack(fill="both", expand=True)

        # Search container at top
        search_frame = tk.Frame(self.display_frame, bg=appearance_manager.bg_color)
        search_frame.pack(fill="x", pady=(5, 0))

        # Search icon and entry
        tk.Label(
            search_frame, text="🔍", bg=appearance_manager.bg_color, fg="white"
        ).pack(side="left", padx=5)

        self.search_var = tk.StringVar()
        self.search_var.trace("w", self.on_search_change)

        self.search_entry = tk.Entry(
            search_frame,
            textvariable=self.search_var,
            bg="#2A2A2A",
            fg="white",
            insertbackground="white",
            font=("Bai Jamjuree Light", 16),
        )
        self.search_entry.pack(fill="x", expand=True, padx=(0, 5))

        # Action buttons container
        action_frame = tk.Frame(self.display_frame, bg=appearance_manager.bg_color)
        action_frame.pack(fill="x", pady=5)

        # Save changes button
        self.save_button = tk.Button(
            action_frame,
            text="SAVE CHANGES",
            command=self.save_changes,
            bg="#2A2A2A",
            fg="white",
            activebackground="#FF4444",
            bd=0,
            font=("Arial", 10, "bold"),
        )
        self.save_button.pack(side="right", padx=5)

        # Text container with scrollbars
        text_container = tk.Frame(self.display_frame, bg=appearance_manager.bg_color)
        text_container.pack(fill="both", expand=True)

        # Scrollbars
        yscroll = ttk.Scrollbar(text_container, orient="vertical")
        xscroll = ttk.Scrollbar(text_container, orient="horizontal")

        # JSON text display
        self.json_display = tk.Text(
            text_container,
            wrap=tk.NONE,
            bg="#1A1A1A",
            fg="white",
            font=("Bai Jamjuree Light.ttf", 16),
            insertbackground="white",
            yscrollcommand=yscroll.set,
            xscrollcommand=xscroll.set,
        )

        # Configure tags for search highlighting
        self.json_display.tag_configure(
            "search_highlight", background="#2ECC71", foreground="black"
        )

        # Configure scrollbars
        yscroll.config(command=self.json_display.yview)
        xscroll.config(command=self.json_display.xview)

        # Grid layout
        self.json_display.grid(row=0, column=0, sticky="nsew")
        yscroll.grid(row=0, column=1, sticky="ns")
        xscroll.grid(row=1, column=0, sticky="ew")

        text_container.grid_rowconfigure(0, weight=1)
        text_container.grid_columnconfigure(0, weight=1)

    def validate_font(self, font_name):
        """Validate if font exists and is usable"""
        return (
            font_name in font.families()
            or os.path.exists(font_name)
            or font_name in self.available_fonts
        )

    def update_font_display(self):
        """Update font display in all relevant widgets"""
        if hasattr(self, "json_display"):
            try:
                font_obj = font.Font(
                    family=self.current_font, size=self.current_font_size
                )
                self.json_display.configure(font=font_obj)
                self.window.update_idletasks()
            except Exception as e:
                print(f"Font update failed: {e}")
                self.revert_to_default_font()

    def revert_to_default_font(self):
        """Revert to default font if current font fails"""
        self.current_font = self.get_default_font()
        self.update_font_display()

    def load_data(self):
        """Load NPC data from JSON file"""
        try:
            with open("NPC.json", "r", encoding="utf-8") as file:
                data = json.load(file)
                # สรุปข้อมูลที่โหลด
                summary = {
                    "main_characters": len(data.get("main_characters", [])),
                    "npcs": len(data.get("npcs", [])),
                    "lore": len(data.get("lore", {})),
                    "character_roles": len(data.get("character_roles", {})),
                    "word_fixes": len(data.get("word_fixes", {})),
                }
                print("NPC Data Summary:")
                for category, count in summary.items():
                    print(f"- {category}: {count} entries")
                return data
        except FileNotFoundError:
            print("Error: NPC.json file not found")
            messagebox.showerror("Error", "NPC.json file not found!")
            return {}
        except json.JSONDecodeError:
            print("Error: Invalid JSON in NPC.json")
            messagebox.showerror("Error", "Invalid JSON in NPC.json!")
            return {}

    def flash_success_message(self, message):
        """Show floating success message with fade effect"""
        print(f"Showing success message: {message}")
        popup = tk.Toplevel(self.window)
        popup.overrideredirect(True)
        popup.configure(bg="#28a745")
        popup.attributes("-alpha", 0.9)

        # Position relative to window
        x = self.window.winfo_x() + self.window.winfo_width() // 2
        y = self.window.winfo_y() + self.window.winfo_height() // 2
        popup.geometry(f"+{x}+{y}")

        # Message label
        label = tk.Label(
            popup,
            text=message,
            fg="white",
            bg="#28a745",
            font=("Arial", 12),
            padx=20,
            pady=10,
        )
        label.pack()

        # Fade effect
        def fade_away():
            alpha = popup.attributes("-alpha")
            if alpha > 0:
                popup.attributes("-alpha", alpha - 0.1)
                popup.after(50, fade_away)
            else:
                popup.destroy()

        popup.after(500, fade_away)

    def setup_entry_form(self):
        """Create and configure the entry form for data input"""
        print("Setting up entry form...")
        self.entry_vars = {}

        # Title container
        title_container = tk.Frame(self.entry_panel, bg=appearance_manager.bg_color)
        title_container.pack(fill="x", pady=10)

        # Form title
        self.form_title = tk.Label(
            title_container,
            text="ENTRY FORM",
            font=("Nasalization Rg", 12),
            bg=appearance_manager.bg_color,
            fg="#808080",
        )
        self.form_title.pack()

        # Scrollable container for fields
        self.fields_container = tk.Frame(
            self.entry_panel, bg=appearance_manager.bg_color
        )
        self.fields_container.pack(fill="both", expand=True, padx=10)

        # Action buttons container (สร้างครั้งเดียว)
        self.action_frame = tk.Frame(
            self.entry_panel, bg=appearance_manager.bg_color, height=50
        )
        self.action_frame.pack(side="bottom", fill="x", padx=10, pady=10)
        self.action_frame.pack_propagate(False)

        # Add Entry button (สร้างครั้งเดียว)
        self.add_btn = tk.Button(
            self.action_frame,
            text="ADD ENTRY",
            command=self.add_entry,
            bg="#2A2A2A",
            fg="white",
            activebackground="#FF4444",
            bd=0,
            font=("Arial", 10, "bold"),
        )
        self.add_btn.pack(fill="x", pady=(0, 5))

        # Add hover effects
        self.add_btn.bind("<Enter>", lambda e: self.add_btn.configure(bg="#404040"))
        self.add_btn.bind("<Leave>", lambda e: self.add_btn.configure(bg="#2A2A2A"))
        print("Entry form setup complete")

    def setup_section_fields(self, section):
        """Create input fields based on section type"""
        print(f"Setting up fields for section: {section}")
        # Clear existing fields
        for widget in self.fields_container.winfo_children():
            widget.destroy()

        # Define fields based on section
        if section == "main_characters":
            fields = ["firstName", "lastName", "gender", "role", "relationship"]
        elif section == "npcs":
            fields = ["name", "role", "description"]
        elif section == "lore":
            fields = ["term", "description"]
        elif section == "character_roles":
            fields = ["character", "style"]
        elif section == "word_fixes":
            fields = ["incorrect", "correct"]
        else:
            print(f"Unknown section: {section}")
            return

        # Create fields
        print("Creating fields...")
        self.entry_vars = {}
        for field in fields:
            field_frame = tk.Frame(
                self.fields_container, bg=appearance_manager.bg_color
            )
            field_frame.pack(fill="x", pady=5)

            # Label with hint
            label = tk.Label(
                field_frame,
                text=field.capitalize(),
                bg=appearance_manager.bg_color,
                fg="#808080",
                font=("Bai Jamjuree Light.ttf", 16),
            )  # ใช้ฟอนต์เดียวกับที่เลือก
            label.pack(anchor="w")

            # Entry field
            if field in ["description", "style"]:
                entry = tk.Text(
                    field_frame,
                    height=4,
                    bg="#2A2A2A",
                    fg="white",
                    insertbackground="white",
                    font=("Bai Jamjuree Light.ttf", 16),
                )  # ใช้ฟอนต์เดียวกับที่เลือก
                entry.pack(fill="x")
                self.entry_vars[field] = entry
            else:
                var = tk.StringVar()
                self.entry_vars[field] = var
                entry = tk.Entry(
                    field_frame,
                    textvariable=var,
                    bg="#2A2A2A",
                    fg="white",
                    insertbackground="white",
                    font=("Bai Jamjuree Light.ttf", 16),
                )  # ใช้ฟอนต์เดียวกับที่เลือก
                entry.pack(fill="x")

    def show_section(self, section):
        """Display and setup selected section"""
        print(f"Showing section: {section}")
        self.current_section = section
        self.setup_section_fields(section)

        # Clear search when changing sections
        if hasattr(self, "search_var"):
            self.search_var.set("")

        self.update_json_display()

        # Update form title
        section_title = section.replace("_", " ").title()
        self.form_title.configure(text=f"{section_title} Entry")

        # อัพเดทสีของทุกปุ่ม
        for section_id, btn in self.section_buttons.items():
            if section_id == self.current_section:
                btn.configure(bg="#2A2A2A", fg="yellow")  # ปุ่มที่เลือก
            else:
                btn.configure(bg=appearance_manager.bg_color, fg="white")  # ปุ่มอื่นๆ

    def add_entry(self):
        """Add or update entry in the current section"""
        if not self.current_section:
            print("No section selected")
            return

        print("Adding new entry...")
        # Collect field values
        new_entry = {}
        for field, var in self.entry_vars.items():
            if isinstance(var, tk.Text):
                value = var.get("1.0", tk.END).strip()
            else:
                value = var.get().strip()
            new_entry[field] = value

        # ตรวจสอบเฉพาะฟิลด์แรกของแต่ละส่วน
        required_first_fields = {
            "main_characters": "firstName",
            "npcs": "name",
            "lore": "term",
            "character_roles": "character",
            "word_fixes": "incorrect",
        }

        first_field = required_first_fields.get(self.current_section)
        if not first_field or not new_entry.get(first_field):
            print(f"Validation failed: Required field {first_field} is empty")
            messagebox.showwarning("Warning", f"The field '{first_field}' is required.")
            return

        try:
            # จัดการข้อมูลตามประเภท
            if self.current_section in ["main_characters", "npcs"]:
                self.add_list_entry(new_entry)
            else:
                self.add_dict_entry(new_entry)

            # เคลียร์ฟอร์มและอัพเดทการแสดงผล
            self.clear_entry_fields()
            self.update_json_display()
            self.flash_success_message("Entry added successfully!")
            print("Entry added successfully")

        except Exception as e:
            print(f"Error adding entry: {e}")
            messagebox.showerror("Error", f"Failed to add entry: {str(e)}")

    def add_list_entry(self, new_entry):
        """Add entry to list-type sections"""
        key_field = "firstName" if self.current_section == "main_characters" else "name"
        print(f"Adding list entry with {key_field}: {new_entry[key_field]}")

        if not self.current_section in self.data:
            self.data[self.current_section] = []

        # Check for existing entry
        entries = self.data[self.current_section]
        for i, entry in enumerate(entries):
            if entry.get(key_field, "").lower() == new_entry[key_field].lower():
                if messagebox.askyesno(
                    "Update Entry",
                    f"Entry with {key_field} '{new_entry[key_field]}' exists.\n"
                    "Do you want to update it?",
                ):
                    entries[i] = new_entry
                    print("Entry updated")
                    return
                return

        # Add new entry
        entries.append(new_entry)
        print("New entry added to list")

    def add_dict_entry(self, new_entry):
        """Add entry to dictionary-type sections"""
        if not self.current_section in self.data:
            self.data[self.current_section] = {}

        # Determine key and value based on section
        if self.current_section == "lore":
            key, value = new_entry["term"], new_entry["description"]
        elif self.current_section == "character_roles":
            key, value = new_entry["character"], new_entry["style"]
        else:  # word_fixes
            key, value = new_entry["incorrect"], new_entry["correct"]

        print(f"Adding dictionary entry: {key}")

        # Check for existing entry
        if key in self.data[self.current_section]:
            if messagebox.askyesno(
                "Update Entry",
                f"Entry for '{key}' exists.\n" "Do you want to update it?",
            ):
                self.data[self.current_section][key] = value
                print("Entry updated")
        else:
            self.data[self.current_section][key] = value
            print("New entry added to dictionary")

    def clear_entry_fields(self):
        """Clear all entry fields"""
        print("Clearing entry fields")
        for var in self.entry_vars.values():
            if isinstance(var, tk.Text):
                var.delete("1.0", tk.END)
            else:
                var.set("")

    def on_search_change(self, *args):
        """Handle real-time search with highlighting"""
        try:
            search_term = self.search_var.get().lower()

            if not self.current_section or not self.json_display:
                return

            # Get current text
            current_text = self.json_display.get("1.0", tk.END)

            # Remove existing highlights
            self.json_display.tag_remove("search_highlight", "1.0", tk.END)

            if search_term:
                # Find and highlight matches
                start_idx = "1.0"
                first_match = None

                while True:
                    # Find next match
                    start_idx = self.json_display.search(
                        search_term, start_idx, tk.END, nocase=True
                    )
                    if not start_idx:
                        break

                    # Calculate end index
                    end_idx = f"{start_idx}+{len(search_term)}c"

                    # Add highlight
                    self.json_display.tag_add("search_highlight", start_idx, end_idx)

                    # Store first match
                    if not first_match:
                        first_match = start_idx

                    # Move to next position
                    start_idx = end_idx

                # Scroll to first match if found
                if first_match:
                    self.json_display.see(first_match)

        except Exception as e:
            print(f"Search error: {e}")

    def start_move(self, event):
        """Start window drag operation"""
        self.x = event.x
        self.y = event.y

    def do_move(self, event):
        """Handle window dragging"""
        try:
            deltax = event.x - self.x
            deltay = event.y - self.y
            x = self.window.winfo_x() + deltax
            y = self.window.winfo_y() + deltay
            self.window.geometry(f"+{x}+{y}")
        except Exception as e:
            print(f"Move error: {e}")

    def start_resize(self, event):
        """Initialize window resize operation"""
        self.is_resizing = True
        self.resize_x = event.x_root
        self.resize_y = event.y_root
        self.resize_w = self.window.winfo_width()
        self.resize_h = self.window.winfo_height()
        print("\rStarting resize operation...", end="", flush=True)

    def on_resize(self, event):
        """Handle window resizing"""
        if not self.is_resizing:
            return

        try:
            dx = event.x_root - self.resize_x
            dy = event.y_root - self.resize_y
            w = max(800, self.resize_w + dx)
            h = max(600, self.resize_h + dy)
            self.window.geometry(f"{w}x{h}")
            # No logging during resize
        except Exception as e:
            print(f"\rResize error: {e}", end="", flush=True)

    def stop_resize(self, event):
        """End window resize operation"""
        if self.is_resizing:
            final_w = self.window.winfo_width()
            final_h = self.window.winfo_height()
            print(f"\rResize complete - New size: {final_w}x{final_h}")
        self.is_resizing = False

    def update_json_display(self, search_term=None):
        """อัพเดทการแสดงผล JSON พร้อมรักษา formatting"""
        if not self.current_section or self.current_section not in self.data:
            print(f"No data for section: {self.current_section}")
            self.json_display.delete("1.0", tk.END)
            return

        try:
            section_data = self.data[self.current_section]

            # จัดรูปแบบ JSON ให้สวยงาม
            json_text = json.dumps(section_data, indent=4, ensure_ascii=False)

            # เก็บตำแหน่ง scroll ปัจจุบัน
            current_scroll = None
            if hasattr(self.json_display, "yview"):
                current_scroll = self.json_display.yview()

            # อัพเดทข้อความ
            self.json_display.config(state="normal")
            self.json_display.delete("1.0", tk.END)
            self.json_display.insert("1.0", json_text)

            # ถ้ามีคำค้นหา ให้ไฮไลท์
            if search_term:
                self.highlight_search_term(search_term)

            # คืนค่า scroll position
            if current_scroll:
                self.json_display.yview_moveto(current_scroll[0])

        except Exception as e:
            print(f"Failed to update display: {e}")
            messagebox.showerror("Error", f"Failed to update display: {str(e)}")

    def highlight_search_term(self, search_term):
        """ไฮไลท์คำที่ค้นหา โดยไม่ใช้ canvas"""
        if not search_term:
            return

        try:
            # ลบไฮไลท์เก่า
            self.json_display.tag_remove("search_highlight", "1.0", tk.END)

            # ค้นหาและไฮไลท์คำใหม่
            start_idx = "1.0"
            while True:
                start_idx = self.json_display.search(
                    search_term.lower(), start_idx, tk.END, nocase=True
                )
                if not start_idx:
                    break
                end_idx = f"{start_idx}+{len(search_term)}c"
                self.json_display.tag_add("search_highlight", start_idx, end_idx)
                start_idx = end_idx

        except Exception as e:
            print(f"Highlight error: {e}")

    def update_data_from_display(self):
        """อัพเดทข้อมูลจาก json_display กลับไปที่ self.data"""
        try:
            if not self.current_section:
                return False

            # ดึงข้อความจาก display
            json_text = self.json_display.get("1.0", tk.END).strip()
            if not json_text:
                return False

            # แปลง JSON string เป็น Python object
            updated_data = json.loads(json_text)

            # ตรวจสอบรูปแบบข้อมูล
            if self.current_section in ["main_characters", "npcs"]:
                if not isinstance(updated_data, list):
                    raise ValueError(f"Invalid data format for {self.current_section}")
            else:
                if not isinstance(updated_data, dict):
                    raise ValueError(f"Invalid data format for {self.current_section}")

            # อัพเดทข้อมูลในส่วนที่กำลังแก้ไข
            self.data[self.current_section] = updated_data
            return True

        except json.JSONDecodeError as e:
            messagebox.showerror("Error", f"Invalid JSON format: {str(e)}")
            return False
        except Exception as e:
            messagebox.showerror("Error", f"Failed to update data: {str(e)}")
            return False

    def save_changes(self):
        """บันทึกการเปลี่ยนแปลงลงไฟล์"""
        print("Saving changes to file...")
        try:
            if not self.update_data_from_display():
                return

            required_sections = [
                "main_characters",
                "npcs",
                "lore",
                "character_roles",
                "word_fixes",
            ]
            for section in required_sections:
                if section not in self.data:
                    raise ValueError(f"Missing required section: {section}")

            with open("NPC.json", "w", encoding="utf-8") as file:
                json.dump(self.data, file, indent=4, ensure_ascii=False)

            self.flash_success_message("Changes saved successfully!")
            print("Changes saved successfully")

            # เรียกใช้ callback เพื่อรีโหลดข้อมูล
            if self.reload_callback:
                print("Triggering NPC data reload...")
                self.reload_callback()
                self.flash_success_message("NPC context reloaded!")

        except Exception as e:
            error_msg = f"Failed to save changes: {str(e)}"
            print(f"Save error: {error_msg}")
            messagebox.showerror("Error", error_msg)

    def reload_npc_data(self):
        """เรียกใช้ฟังก์ชัน reload ใน main app"""
        try:
            # ส่งสัญญาณไปที่ main app
            if hasattr(self.parent, "reload_npc_data"):
                self.parent.reload_npc_data()
                self.flash_success_message("Reloading NPC context data...")
                # delay นิดหน่อยก่อนแสดงข้อความสำเร็จ
                self.window.after(
                    1000,
                    lambda: self.flash_success_message(
                        "NPC context reloaded successfully!"
                    ),
                )
        except Exception as e:
            messagebox.showerror("Error", f"Failed to reload NPC data: {str(e)}")

    def increase_font_size(self):
        """Increase font size by one step"""
        print("Increasing font size")
        current_idx = self.font_sizes.index(self.current_font_size)
        if current_idx < len(self.font_sizes) - 1:
            self.current_font_size = self.font_sizes[current_idx + 1]
            self.update_font_size()
            print(f"New font size: {self.current_font_size}")

    def decrease_font_size(self):
        """Decrease font size by one step"""
        print("Decreasing font size")
        current_idx = self.font_sizes.index(self.current_font_size)
        if current_idx > 0:
            self.current_font_size = self.font_sizes[current_idx - 1]
            self.update_font_size()
            print(f"New font size: {self.current_font_size}")

    def update_font_size(self):
        """Update font size in JSON display and size label"""
        print(f"Updating font size to: {self.current_font_size}")
        try:
            if hasattr(self, "json_display"):
                # Store current text and state
                current_text = self.json_display.get("1.0", tk.END)
                current_state = self.json_display.cget("state")

                # Enable for changes
                self.json_display.config(state="normal")

                # Update font
                self.json_display.configure(
                    font=(self.current_font, self.current_font_size)
                )

                # Reapply text
                self.json_display.delete("1.0", tk.END)
                self.json_display.insert("1.0", current_text)

                # Restore state
                self.json_display.config(state=current_state)

            # Update size label
            if hasattr(self, "size_label"):
                self.size_label.configure(text=str(self.current_font_size))

            print("Font size update complete")

        except Exception as e:
            print(f"Font size update error: {e}")
            messagebox.showerror("Error", f"Failed to update font size: {str(e)}")

    def on_font_change(self, event=None):
        """Handle font change with automatic apply"""
        new_font = self.font_var.get()
        print(f"Font change requested to: {new_font}")
        if new_font in self.available_fonts:
            try:
                self.current_font = new_font

                # Update json display
                if hasattr(self, "json_display"):
                    self.json_display.configure(font=(new_font, self.current_font_size))

                # Update entry fields
                for var in self.entry_vars.values():
                    if isinstance(var, tk.Text):
                        var.configure(font=(new_font, self.current_font_size))

                self.flash_success_message(f"Font changed to {new_font}")
                print("Font change successful")
            except Exception as e:
                print(f"Font change error: {e}")
                self.revert_to_default_font()

    def on_window_configure(self, event):
        """Handle window resize events"""
        if event and event.widget == self.window and not self.is_resizing:
            # Update component positions silently
            self.close_button.place(x=self.window.winfo_width() - 30, y=5)
            self.resize_handle.place(relx=1, rely=1, anchor="se")

            # Maintain minimum size without logging
            if event.width < 800:
                self.window.geometry(f"800x{event.height}")
            if event.height < 600:
                self.window.geometry(f"{event.width}x600")

    def find_and_display_character(self, character_name: str, is_verified: bool = False) -> None:
        try:
            # Clear any existing search
            if hasattr(self, 'search_var'):
                self.search_var.set('')
                
            character_found = False
                
            # Check main characters first
            for char in self.data.get('main_characters', []):
                if (character_name == char['firstName'] or 
                    character_name == f"{char['firstName']} {char['lastName']}".strip()):
                    self.show_section('main_characters')
                    self.search_var.set(character_name)
                    character_found = True
                    self.logging_manager.log_npc_manager(f"Found character in main_characters: {character_name}")
                    break
                    
            # If not found in main characters, check NPCs
            if not character_found:
                for npc in self.data.get('npcs', []):
                    if character_name == npc['name']:
                        self.show_section('npcs')
                        self.search_var.set(character_name)
                        character_found = True
                        self.logging_manager.log_npc_manager(f"Found character in NPCs: {character_name}")
                        break
                        
            # If character not found anywhere, prepare for new entry
            if not character_found:
                self._prepare_new_character_form(character_name)
                self.logging_manager.log_npc_manager(f"Preparing form for new character: {character_name}")
                
        except Exception as e:
            error_msg = f"Error finding character {character_name}: {e}"
            self.logging_manager.log_error(error_msg)
            self.flash_message(error_msg, "error")

    def _prepare_new_character_form(self, character_name: str) -> None:
        """
        เตรียมฟอร์มสำหรับเพิ่มตัวละครใหม่ โดยใส่ชื่อเต็มในช่องเดียว
        
        Args:
            character_name: ชื่อตัวละครที่ต้องการเพิ่ม
        """
        try:
            # Show main characters section for new entry
            self.show_section('main_characters')
            
            # Clear existing form fields
            for var in self.entry_vars.values():
                if isinstance(var, tk.Text):
                    var.delete('1.0', tk.END)
                else:
                    var.set('')
                    
            # ใส่ชื่อเต็มในช่อง firstName โดยไม่แยกนามสกุล
            clean_name = character_name.strip(":!?. ")
            self.entry_vars['firstName'].set(clean_name)
                
            # Set default values for other fields
            self.entry_vars['gender'].set('Neutral')
            self.entry_vars['role'].set('Adventure')
            self.entry_vars['relationship'].set('Neutral')
            
            # Show helper message
            self.flash_success_message(f"Ready to add new character: {clean_name}")
            self.logging_manager.log_info(f"Prepared form for new character: {clean_name}")
            
        except Exception as e:
            self.logging_manager.log_error(f"Error preparing new character form: {e}")
            self.flash_message(f"Error preparing form: {str(e)}", "error")

    def flash_message(self, message: str, message_type: str = "info") -> None:
        """
        แสดงข้อความแจ้งเตือนแบบ fade
        
        Args:
            message: ข้อความที่ต้องการแสดง
            message_type: ประเภทข้อความ ('info', 'error', 'success')
        """
        # กำหนดสีตามประเภทข้อความ
        colors = {
            'info': '#2196F3',    # สีฟ้า
            'error': '#F44336',   # สีแดง
            'success': '#4CAF50'  # สีเขียว
        }
        bg_color = colors.get(message_type, colors['info'])
        
        popup = tk.Toplevel(self.window)
        popup.overrideredirect(True)
        popup.configure(bg=bg_color)
        popup.attributes('-alpha', 0.9)
        
        # จัดตำแหน่งกลางหน้าต่าง
        x = self.window.winfo_x() + self.window.winfo_width() // 2
        y = self.window.winfo_y() + self.window.winfo_height() // 2
        popup.geometry(f"+{x}+{y}")
        
        # สร้าง label สำหรับข้อความ
        label = tk.Label(
            popup,
            text=message,
            fg='white',
            bg=bg_color,
            font=('Arial', 12),
            padx=20,
            pady=10
        )
        label.pack()
        
        # ฟังก์ชัน fade effect
        def fade_away():
            alpha = popup.attributes('-alpha')
            if alpha > 0:
                popup.attributes('-alpha', alpha - 0.1)
                popup.after(50, fade_away)
            else:
                popup.destroy()
                
        popup.after(1000, fade_away)
    
    def show_window(self):
        """Show the NPC Manager window"""
        print("Showing NPC Manager window")
        self.window.deiconify()
        if not self.current_section and self.data:
            first_section = next(iter(self.data.keys()))
            self.show_section(first_section)
            print(f"Auto-selected first section: {first_section}")

    def hide_window(self):
        """Hide the NPC Manager window"""
        print("Hiding NPC Manager window")
        self.window.withdraw()

    def is_window_showing(self):
        """Check if NPC Manager window is currently visible"""
        return (hasattr(self, "window") and 
                self.window.winfo_exists() and 
                self.window.state() != "withdrawn")

    def toggle_window(self):
        """Toggle window visibility"""
        if self.is_window_showing():
            self.window.withdraw()
        else:
            self.show_window()
    
    def cleanup(self):
        """Cleanup resources before closing"""
        try:
            self.logging_manager.log_info("Cleaning up NPC Manager resources")
            # ทำความสะอาด resources ต่างๆ
            if hasattr(self, 'window') and self.window.winfo_exists():
                self.window.withdraw()
            
            # เคลียร์ค่าต่างๆ
            if hasattr(self, 'search_var'):
                self.search_var.set('')
                
            # เคลียร์ entry fields
            for var in self.entry_vars.values():
                if isinstance(var, tk.Text):
                    var.delete('1.0', tk.END)
                else:
                    var.set('')
                    
        except Exception as e:
            self.logging_manager.log_error(f"Error during cleanup: {e}")

def create_npc_manager(parent, reload_callback=None, logging_manager=None):
    """Create and return a new NPC Manager instance"""
    return NPCManager(parent, reload_callback, logging_manager)

# Main entry point
if __name__ == "__main__":
    root = tk.Tk()
    app = create_npc_manager(root)
    root.mainloop()