first commit

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+*.egg
+*.egg-info/
+.eggs/
+
+# Virtual environments
+.venv/
+.venv312/
+venv/
+env/
+
+# py2app build output
+build/
+dist/
+
+# PyInstaller
+*.spec
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+Thumbs.db
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Env files
+.env
+.env.local

main.py

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+"""
+Currency Converter — customtkinter edition
+Rounded corners, dark/light mode toggle.
+Dependencies: pip install requests pyperclip customtkinter
+"""
+
+import customtkinter as ctk
+import threading
+import time
+import re
+import platform
+
+try:
+    import requests
+    HAS_REQUESTS = True
+except ImportError:
+    HAS_REQUESTS = False
+
+try:
+    import pyperclip
+    HAS_PYPERCLIP = True
+except ImportError:
+    HAS_PYPERCLIP = False
+
+IS_MAC = platform.system() == "Darwin"
+ctk.set_appearance_mode("dark")
+ctk.set_default_color_theme("blue")
+
+FONT   = "SF Pro Text"    if IS_MAC else "Helvetica"
+FONT_D = "SF Pro Display" if IS_MAC else "Helvetica"
+ACCENT = "#0A84FF"
+GREEN  = "#30D158"
+
+# Dynamic colors per mode — (dark, light)
+def T(dark, light):
+    """Return a tuple customtkinter uses for dark/light."""
+    return (dark, light)
+
+# Color pairs
+C_BG    = T("#1C1C1E", "#F2F2F7")
+C_PANEL = T("#2C2C2E", "#FFFFFF")
+C_PILL  = T("#3A3A3C", "#E5E5EA")
+C_PILLH = T("#555558", "#D1D1D6")
+C_WHITE = T("#FFFFFF", "#000000")
+C_GREY  = T("#8E8E93", "#6C6C70")
+C_GREY2 = T("#636366", "#8E8E93")
+C_SEP   = T("#38383A", "#C6C6C8")
+
+FALLBACK_RATES = {
+    "USD": 1.0,   "VND": 25450.0, "EUR": 0.92,  "GBP": 0.79,
+    "JPY": 149.5, "KRW": 1340.0,  "CNY": 7.24,  "SGD": 1.35,
+    "THB": 35.5,  "MYR": 4.72,    "AUD": 1.54,  "CAD": 1.37,
+    "CHF": 0.90,  "HKD": 7.82,    "INR": 83.2,  "NZD": 1.65,
+    "SEK": 10.5,  "NOK": 10.8,    "DKK": 6.89,  "BRL": 4.97,
+    "MXN": 17.2,  "ZAR": 18.6,    "TRY": 32.1,  "RUB": 90.5,
+    "AED": 3.67,  "SAR": 3.75,    "ILS": 3.72,  "PLN": 3.98,
+    "CZK": 23.1,  "HUF": 358.0,   "RON": 4.59,  "IDR": 15750.0,
+    "PHP": 56.8,  "PKR": 278.0,   "BDT": 110.0, "NGN": 1550.0,
+}
+CURRENCIES = sorted(FALLBACK_RATES.keys())
+SYMBOLS = {
+    "USD":"$",  "VND":"₫",  "EUR":"€",  "GBP":"£",  "JPY":"¥",
+    "KRW":"₩",  "CNY":"¥",  "SGD":"S$", "THB":"฿",  "MYR":"RM",
+    "AUD":"A$", "CAD":"C$", "CHF":"Fr", "HKD":"HK$","INR":"₹",
+    "NZD":"NZ$","SEK":"kr", "NOK":"kr", "DKK":"kr", "BRL":"R$",
+    "MXN":"$",  "ZAR":"R",  "TRY":"₺",  "RUB":"₽",  "AED":"د.إ",
+    "SAR":"﷼",  "ILS":"₪",  "PLN":"zł", "CZK":"Kč", "HUF":"Ft",
+    "RON":"lei","IDR":"Rp", "PHP":"₱",  "PKR":"₨",  "BDT":"৳",
+    "NGN":"₦",
+}
+
+FALLBACK_RATES
+class RateCache:
+    def __init__(self):
+        self.rates = dict(FALLBACK_RATES)
+        self._lock = threading.Lock()
+
+    def fetch(self, cb=None):
+        if not HAS_REQUESTS:
+            if cb: cb(False); return
+        try:
+            r = requests.get("https://open.er-api.com/v6/latest/USD", timeout=8)
+            d = r.json()
+            if d.get("result") == "success":
+                with self._lock: self.rates = d["rates"]
+                if cb: cb(True)
+            else:
+                if cb: cb(False)
+        except Exception:
+            if cb: cb(False)
+
+    def convert(self, amt, frm, to):
+        with self._lock: r = self.rates
+        return amt / r[frm] * r[to]
+
+    def rate_str(self, frm, to):
+        with self._lock: r = self.rates
+        v = r[to] / r[frm]
+        return f"1 {frm} = {v:,.4f} {to}" if v >= 1 else f"1 {frm} = {v:.6f} {to}"
+
+
+# ── App ───────────────────────────────────────────────────────────────────────
+class App(ctk.CTk):
+    def __init__(self):
+        super().__init__()
+        self.cache = RateCache()
+        self._result_str = ""
+        self._build_window()
+        self._build_ui()
+        threading.Thread(target=self.cache.fetch,
+                         kwargs={"cb": self._on_rates}, daemon=True).start()
+        self._live_convert()
+
+    def _build_window(self):
+        self.title("Currency")
+        self.configure(fg_color=C_BG)
+        self.resizable(False, False)
+        W, H = 320, 420
+        sw, sh = self.winfo_screenwidth(), self.winfo_screenheight()
+        self.geometry(f"{W}x{H}+{(sw-W)//2}+{(sh-H)//2}")
+
+    def _build_ui(self):
+        self.from_var = ctk.StringVar(value="USD")
+        self.to_var   = ctk.StringVar(value="VND")
+
+        # ── Currency selector row ─────────────────────────────────────────
+        top = ctk.CTkFrame(self, fg_color=C_BG)
+        top.pack(fill="x", padx=16, pady=(16, 0))
+        top.columnconfigure(0, weight=1)
+        top.columnconfigure(2, weight=1)
+
+        # FROM dropdown
+        self._from_dd = ctk.CTkOptionMenu(
+            top, variable=self.from_var, values=CURRENCIES,
+            width=110, height=32, corner_radius=8,
+            fg_color=C_PILL, button_color=C_PILL,
+            button_hover_color=C_PILLH,
+            text_color=C_WHITE, dropdown_fg_color=C_PANEL,
+            dropdown_hover_color=C_PILL,
+            font=(FONT, 13, "bold"),
+            command=lambda _: self._on_from_change())
+        self._from_dd.grid(row=0, column=0, sticky="ew")
+
+        # Swap button
+        swap_btn = ctk.CTkButton(
+            top, text="⇄", width=36, height=32,
+            corner_radius=8,
+            fg_color=C_PILL, hover_color=C_PILLH,
+            text_color=C_GREY,
+            font=(FONT, 14, "bold"),
+            command=self._swap)
+        swap_btn.grid(row=0, column=1, padx=8)
+
+        # TO dropdown
+        self._to_dd = ctk.CTkOptionMenu(
+            top, variable=self.to_var, values=CURRENCIES,
+            width=110, height=32, corner_radius=8,
+            fg_color=C_PILL, button_color=C_PILL,
+            button_hover_color=C_PILLH,
+            text_color=C_WHITE, dropdown_fg_color=C_PANEL,
+            dropdown_hover_color=C_PILL,
+            font=(FONT, 13, "bold"),
+            command=lambda _: self._live_convert())
+        self._to_dd.grid(row=0, column=2, sticky="ew")
+
+        # ── Rate label ────────────────────────────────────────────────────
+        self._rate_lbl = ctk.CTkLabel(self, text="",
+                                      font=(FONT, 11),
+                                      text_color=C_GREY)
+        self._rate_lbl.pack(pady=(10, 0))
+
+        # Separator
+        ctk.CTkFrame(self, height=1, fg_color=C_SEP, corner_radius=0)\
+            .pack(fill="x", padx=16, pady=(10, 0))
+
+        # ── INPUT card ────────────────────────────────────────────────────
+        in_card = ctk.CTkFrame(self, fg_color=C_PANEL, corner_radius=12)
+        in_card.pack(fill="x", padx=16, pady=(12, 0))
+
+        in_hdr = ctk.CTkFrame(in_card, fg_color=C_PANEL)
+        in_hdr.pack(fill="x", padx=14, pady=(10, 0))
+
+        self._in_tag = ctk.CTkLabel(in_hdr, text="USD  $",
+                                    font=(FONT, 10, "bold"),
+                                    text_color=ACCENT)
+        self._in_tag.pack(side="left")
+
+        self._copy_in_btn = ctk.CTkButton(
+            in_hdr, text="⎘", width=28, height=22,
+            corner_radius=6,
+            fg_color="transparent", hover_color=C_PILL,
+            text_color=C_GREY2, font=(FONT, 11),
+            command=self._copy_input)
+        self._copy_in_btn.pack(side="right")
+
+        self.amount_var = ctk.StringVar(value="1")
+        self._entry = ctk.CTkEntry(
+            in_card, textvariable=self.amount_var,
+            font=(FONT_D, 38, "bold"),
+            fg_color=C_PANEL, border_width=0,
+            text_color=C_WHITE,
+            justify="center", width=280, height=56)
+        self._entry.pack(pady=(2, 12), padx=14)
+        self._entry.bind("<KeyRelease>", lambda e: self._live_convert())
+        self._entry.bind("<Return>",     lambda e: self._live_convert())
+
+        # ── Swap vertical ─────────────────────────────────────────────────
+        mid = ctk.CTkFrame(self, fg_color=C_BG)
+        mid.pack(pady=8)
+        ctk.CTkButton(mid, text="↕", width=32, height=32,
+                      corner_radius=16,
+                      fg_color=C_PILL, hover_color=C_PILLH,
+                      text_color=C_GREY, font=(FONT, 13),
+                      command=self._swap).pack()
+
+        # ── OUTPUT card ───────────────────────────────────────────────────
+        out_card = ctk.CTkFrame(self, fg_color=C_PANEL, corner_radius=12)
+        out_card.pack(fill="x", padx=16, pady=(0, 12))
+
+        out_hdr = ctk.CTkFrame(out_card, fg_color=C_PANEL)
+        out_hdr.pack(fill="x", padx=14, pady=(10, 0))
+
+        self._out_tag = ctk.CTkLabel(out_hdr, text="VND  ₫",
+                                     font=(FONT, 10, "bold"),
+                                     text_color=ACCENT)
+        self._out_tag.pack(side="left")
+
+        self._copy_out_btn = ctk.CTkButton(
+            out_hdr, text="⎘", width=28, height=22,
+            corner_radius=6,
+            fg_color="transparent", hover_color=C_PILL,
+            text_color=C_GREY2, font=(FONT, 11),
+            command=self._copy_output)
+        self._copy_out_btn.pack(side="right")
+
+        self._result_lbl = ctk.CTkLabel(
+            out_card, text="—",
+            font=(FONT_D, 38, "bold"),
+            text_color=C_WHITE)
+        self._result_lbl.pack(pady=(2, 12))
+
+        # ── Status bar ────────────────────────────────────────────────────
+        bot = ctk.CTkFrame(self, fg_color=C_BG)
+        bot.pack(fill="x", padx=16, pady=(0, 12))
+
+        self._status_lbl = ctk.CTkLabel(bot, text="● connecting…",
+                                        font=(FONT, 9), text_color=C_GREY2)
+        self._status_lbl.pack(side="left")
+
+        # Dark / Light toggle
+        self._mode = "dark"
+        self._mode_btn = ctk.CTkButton(
+            bot, text="☀", width=28, height=22,
+            corner_radius=6,
+            fg_color="transparent", hover_color=C_PILL,
+            text_color=C_GREY2, font=(FONT, 13),
+            command=self._toggle_mode)
+        self._mode_btn.pack(side="right", padx=(6, 0))
+
+        ctk.CTkLabel(bot, text="Currency Converter",
+                     font=(FONT, 9), text_color=C_GREY2).pack(side="right")
+
+    # ── Logic ─────────────────────────────────────────────────────────────────
+    def _toggle_mode(self):
+        if self._mode == "dark":
+            self._mode = "light"
+            ctk.set_appearance_mode("light")
+            self._mode_btn.configure(text="🌙")
+        else:
+            self._mode = "dark"
+            ctk.set_appearance_mode("dark")
+            self._mode_btn.configure(text="☀")
+
+    def _on_from_change(self):
+        self._refresh_tags()
+        self._live_convert()
+
+    def _refresh_tags(self):
+        f, t = self.from_var.get(), self.to_var.get()
+        self._in_tag.configure(text=f"{f}  {SYMBOLS.get(f,'')}")
+        self._out_tag.configure(text=f"{t}  {SYMBOLS.get(t,'')}")
+
+    def _get_amount(self):
+        raw = self.amount_var.get().strip().replace(",", "")
+        m = re.findall(r"[\d.]+", raw)
+        if not m: return None
+        try: return float(m[0])
+        except ValueError: return None
+
+    def _fmt(self, v):
+        if v >= 1000: return f"{v:,.2f}"
+        if v >= 1:    return f"{v:.4f}"
+        return f"{v:.6f}"
+
+    def _live_convert(self):
+        self._refresh_tags()
+        amt = self._get_amount()
+        if amt is None: return
+        frm, to = self.from_var.get(), self.to_var.get()
+        try:
+            result = self.cache.convert(amt, frm, to)
+            self._result_str = self._fmt(result)
+            self._result_lbl.configure(text=self._result_str, text_color=C_WHITE)
+            self._rate_lbl.configure(text=self.cache.rate_str(frm, to))
+        except Exception:
+            pass
+
+    def _swap(self):
+        a, b = self.from_var.get(), self.to_var.get()
+        res = self._result_str.replace(",", "") if self._result_str else None
+        self.from_var.set(b)
+        self.to_var.set(a)
+        if res:
+            try: self.amount_var.set(res)
+            except Exception: pass
+        self._refresh_tags()
+        self._live_convert()
+
+    def _do_copy(self, btn, value):
+        if not value: return
+        try:
+            if HAS_PYPERCLIP: pyperclip.copy(value)
+            else: self.clipboard_clear(); self.clipboard_append(value)
+        except Exception: pass
+        btn.configure(text="✓", text_color=GREEN)
+        self.after(1200, lambda: btn.configure(text="⎘", text_color=C_GREY2))
+
+    def _copy_input(self):
+        self._do_copy(self._copy_in_btn, self.amount_var.get())
+
+    def _copy_output(self):
+        self._do_copy(self._copy_out_btn, self._result_str)
+
+    def _on_rates(self, live):
+        def _u():
+            self._status_lbl.configure(
+                text="● live rates" if live else "● offline",
+                text_color=GREEN if live else C_GREY2)
+            self._live_convert()
+        self.after(0, _u)
+
+def main():
+    print("💱 Currency  |  ⌘+Shift+T")
+    App().mainloop()
+
+if __name__ == "__main__":
+    main()

readme.md

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+# 💱 Currency Converter — Desktop App
+
+Cross-platform desktop app (Windows & macOS) viết bằng Python.
+
+---
+
+## ✨ Tính năng
+
+| Tính năng             | Mô tả                                                            |
+| --------------------- | ---------------------------------------------------------------- |
+| 🔄 Chuyển đổi tiền tệ | 40+ loại tiền, tỉ giá thực từ open.er-api.com                    |
+| ⌨️ Global Hotkey      | `Ctrl+Shift+C` — bôi đen số bất kỳ → nhấn hotkey → tự chuyển đổi |
+| 📋 Copy nhanh         | Sao chép kết quả 1 click                                         |
+| 🔃 Swap               | Đổi chiều nhanh (From ↔ To)                                      |
+| 📜 Lịch sử            | 4 lần chuyển đổi gần nhất                                        |
+| 🌐 Offline fallback   | Nếu không có mạng, dùng tỉ giá offline gần đúng                  |
+
+---
+
+## 📦 Cài đặt
+
+```bash
+# 1. Cài Python 3.10+ (nếu chưa có)
+
+# 2. Cài dependencies
+pip install requests pyperclip keyboard
+
+# 3. Chạy app
+python currency_converter.py
+```
+
+---
+
+## 🖱️ Cách dùng tính năng Hotkey (highlight text)
+
+1. Bôi đen / highlight một đoạn text có chứa số (VD: "Price: 299.99")
+2. Nhấn `Ctrl+C` để copy (như bình thường)
+3. Nhấn **`Ctrl+Shift+C`** → App tự bật lên, điền số và chuyển đổi
+
+---
+
+## ⚠️ Lưu ý theo hệ điều hành
+
+### Windows
+
+- Chạy bình thường, không cần quyền admin (trừ khi app khác chặn hotkey)
+
+### macOS
+
+- Cần cấp quyền **Accessibility**:
+  - System Settings → Privacy & Security → Accessibility
+  - Thêm Terminal hoặc Python interpreter của bạn
+- Nếu dùng `Cmd` thay `Ctrl`, sửa dòng `HOTKEY = "ctrl+shift+c"` thành `"cmd+shift+c"`
+
+---
+
+## 🔧 Tuỳ chỉnh
+
+Mở file `currency_converter.py`, tìm các hằng số ở đầu file:
+
+```python
+HOTKEY = "ctrl+shift+c"   # Đổi phím tắt
+```
+
+---
+
+## 📡 Nguồn tỉ giá
+
+- **Live**: [open.er-api.com](https://open.er-api.com) (miễn phí, cập nhật hàng ngày)
+- **Offline**: Tỉ giá xấp xỉ được nhúng sẵn trong code

requirements.txt

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+requests>=2.28.0
+pyperclip>=1.8.2
+ 

setup.py

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+from setuptools import setup
+
+APP = ['main.py']
+DATA_FILES = []
+OPTIONS = {
+    'argv_emulation': False,
+    'packages': ['customtkinter', 'requests', 'pyperclip'],
+    'iconfile': None,
+    'plist': {
+        'CFBundleName': 'Currency',
+        'CFBundleDisplayName': 'Currency Converter',
+        'CFBundleIdentifier': 'com.currency.converter',
+        'CFBundleVersion': '1.0.0',
+        'CFBundleShortVersionString': '1.0',
+        'LSMinimumSystemVersion': '10.13',
+        'NSHighResolutionCapable': True,
+    }
+}
+
+setup(
+    app=APP,
+    data_files=DATA_FILES,
+    options={'py2app': OPTIONS},
+    setup_requires=['py2app'],
+)