// Winky i18n — Persian (default) + English.
// Usage: t('key') resolves current language. Falls back to Persian.

const I18N = {
  fa: {
    appName: "Winky",
    welcome: "به Winky خوش اومدی 💞",
    welcomeDesc: "به Winky خوش اومدی. قبل از شروع، لطفاً تایید کن:",
    chooseLang: "زبان رو انتخاب کن",
    chooseLangSub: "زبان خود را انتخاب کنید",
    langFa: "🇮🇷 فارسی",
    langEn: "🇬🇧 English",
    age: "سن",
    agePlaceholder: "سن",
    terms: "من بالای ۱۸ سال هستم و قوانین و حریم خصوصی Winky رو می‌پذیرم.",
    createAccount: "ساخت حساب کاربری ✨",
    nameLabel: "نام نمایشی",
    namePlaceholder: "مثلاً سارا",
    province: "استان",
    cityLabel: "شهر",
    cityPlaceholder: "تهران",
    next: "بعدی",
    wizLooking: "دنبال چی می‌گردی؟",
    wizLookingDesc: "بیشتر از یه مورد رو می‌تونی انتخاب کنی و هر وقت خواستی عوضش کنی.",
    openToEveryone: "با همه آشنا میشم.",
    shownToNote: "فقط به کسایی نشون داده میشی که دنبال جنسیت تو باشن.",
    genderLabel: "جنسیت من",
    chooseGender: "جنسیت رو انتخاب کن",
    lookingLabel: "دنبال",
    back: "قبلی",
    female: "زن",
    male: "مرد",
    other: "دیگر",
    wizIntent: "دنبال چی می‌گردی؟",
    wizIntentDesc: "سفرِ دوست‌یابیِ خودته — ۱ یا ۲ موردی که بهت می‌خوره انتخاب کن.",
    intentNote: "این روی پروفایلت نشون داده میشه تا بقیه راحت‌تر پیدات کنن.",
    errIntent: "حداقل یک مورد رو انتخاب کن.",
    intent_long_term: "رابطه‌ی بلندمدت",
    intent_life_partner: "همسر زندگی",
    intent_casual: "قرارهای دوستانه و خودمونی",
    intent_intimacy: "صمیمیت، بدون تعهد",
    intent_marriage: "ازدواج",
    intent_non_mono: "غیرتک‌همسریِ اخلاقی",
    wizLife: "سبک زندگی و عادت‌هات",
    wizLifeDesc: "درباره‌ی عادت‌هات هرچقدر راحتی بگو — به بقیه کمک می‌کنه بهتر با تو کنار بیان.",
    life_drinking: "نوشیدن",
    life_drinking_yes: "بله، مینوشم",
    life_drinking_sometimes: "گاهی مینوشم",
    life_drinking_rarely: "کم پیش میاد",
    life_drinking_no: "نمی‌نوشم",
    life_drinking_sober: "ترک کرده‌ام",
    life_smoking: "سیگار",
    life_smoking_sometimes: "گاهی میکشم",
    life_smoking_no: "نمیکشم",
    life_smoking_yes: "میکشم",
    life_smoking_quitting: "دارم ترک میکنم",
    life_workout: "ورزش",
    life_workout_daily: "روزانه",
    life_workout_weekly: "هفتگی",
    life_workout_rarely: "کم",
    life_workout_no: "نمیرم",
    wizInterests: "علایق",
    wizInterestsDesc: "غذایی یا ورزشی؟ علایقت رو اضافه کن تا با آدم‌های هم‌ذوقت بیشتر آشنا بشی.",
    selected: "انتخاب شده",
    saving: "در حال ذخیره...",
    errName: "نام",
    errBirth: "تاریخ تولد",
    errGender: "جنسیت",
    errPhoto: "حداقل یک عکس آپلود کن",
    errVoice: "ویس",
    errLoc: "لوکیشنت رو ثبت کن",
    locPleaseAllow: "دکمه «اجازه میدم» رو بزن تا لوکیشنت ثبت بشه",
    errFinish: "لطفاً موارد زیر را وارد کن:",
    errSave: "ثبت‌نام انجام نشد — اینترنت را چک کن و دوباره تلاش کن.",
    int_cat_popular: "محبوب‌ترین",
    int_cat_arts: "هنر",
    int_cat_film: "فیلم",
    int_cat_food: "غذا",
    int_cat_gaming: "بازی",
    int_cat_music: "موسیقی",
    int_cat_sports: "ورزش",
    int_cat_travel: "سفر",
    int_cat_nature: "طبیعت",
    int_cat_books: "کتاب",
    int_cat_pets: "حیوانات",
    int_cat_wellness: "سلامتی",
    life_pets: "حیوانات خانگی",
    life_pets_dog: "سگ",
    life_pets_cat: "گربه",
    life_pets_bird: "پرنده",
    life_pets_fish: "ماهی",
    life_pets_reptile: "خزنده",
    life_pets_hamster: "همستر",
    life_pets_horse: "اسب",
    life_pets_free: "بدون حیوان",
    life_pets_want: "می‌خوام داشته باشم",
    life_pets_allergic: "حساسیت دارم",
    both: "هر دو",
    bioTitle: "بیو",
    bioDesc: "یه توضیح کوتاه بنویس که بقیه بدونن کی هستی.",
    bioPlaceholder: "پروفایل نمونه...",
    photosTitle: "عکس‌هات",
    photosDesc: "تا ۶ عکس آپلود کن (اولی عکس اصلیه). روی عکسی بزن تا اصلی بشه.",
    main: "اصلی ✅",
    pick: "انتخاب",
    voiceTitle: "ویس اینترو 🎙",
    voiceDesc: "۳۰ ثانیه صدات رو ضبط کن — بقیه قبل از دیدن چهره‌ت، صدات رو می‌شنون. (اختیاری)",
    record: "🎙 ضبط ویس",
    done: "آماده‌ای؟ 🎉",
    doneDesc: "پروفیلت ساخته شد. حالا برو کشف کن و با آدم‌های هم‌خونت آشنا شو.",
    enter: "ورود به Winky 💞",
    errAge: "برای استفاده باید بالای ۱۸ سال باشی.",
    errTerms: "لطفاً قوانین رو تایید کن.",
    errName: "نام رو وارد کن.",
    errGender: "جنسیت رو انتخاب کن.",
    errLooking: "حداقل یک گزینه رو انتخاب کن.",
    errAgeValid: "سن معتبر وارد کن.",
    wizNameGender: "اسم و جنسیت",
    wizBirth: "تاریخ تولد",
    wizBirthDesc: "روز، ماه و سال تولدت رو با بالا و پایین کردن انتخاب کن",
    wizBio: "بیو",
    wizBioDesc: "یه توضیح کوتاه بنویس که بقیه بدونن کی هستی.",
    wizPhotos: "عکس‌هات",
    wizPhotosDesc: "تا ۶ عکس آپلود کن (اولی عکس اصلیه). روی عکسی بزن تا اصلی بشه.",
    uploading: "در حال آپلود...",
    uploaded: "آپلود شد ✓",
    errUpload: "خطا در آپلود",
    errSignup: "خطا در ثبت‌نام، دوباره تلاش کن",
    ageConfirmTitle: "شما {age} سال دارید",
    ageConfirmDesc: "مطمئن شو سنّت درسته چون بعداً قابل تغییر نیست.",
    ageConfirmBtn: "تایید سن من",
    ageCancelBtn: "انصراف",
    tapToClose: "برای بستن بزن",
    cropTitle: "عکست رو کراپ کن",
    cropApply: "تایید",
    cropCancel: "انصراف",
    cropWarn: "اول عکست رو بزرگ‌نمایی کن تا کادر رو کامل پر کنه (حاشیه سیاه نمونه).",
    skip: "رد کردن",
    tapToRecord: "برای ضبط بزن",
    recording: "در حال ضبط...",
    voiceRecorded: "ضبط شد ✓",
    voiceUploaded: "ویس آپلود شد ✓",
    voiceReady: "گوش کن — راضی بودی تایید بزن",
    reRecord: "ضبط مجدد",
    confirmVoice: "تایید و ارسال",
    processing: "در حال آپلود...",
    micNeeded: "دسترسی میکروفون لازمه 🎙",
    wizVoice: "ویس اینترو 🎙",
    wizVoiceDesc: "۳۰ ثانیه صدات رو ضبط کن — بقیه قبل از دیدن چهره‌ت، صدات رو می‌شنون. (اختیاری)",
    wizDone: "آماده‌ای؟ 🎉",
    wizDoneDesc: "پروفیلت ساخته شد. حالا برو کشف کن و با آدم‌های هم‌خونت آشنا شو.",
    wizLoc: "اهل اینجایی؟",
    wizLocDesc: "لوکیشنت رو تنظیم کن تا ببینی چه کسانی نزدیکته یا فراتر. بدون این نمی‌تونی با کسی مچ بشی.",
    locAllow: "اجازه میدم 📍",
    locWorking: "در حال دریافت...",
    locSet: "✓ لوکیشن ثبت شد",
    locDenied: "دسترسی داده نشد — از دکمه پایین استفاده کن 📍",
    locNoGeo: "مرورگر لوکیشن رو پشتیبانی نمی‌کند — از دکمه پایین استفاده کن 📍",
    locTgFallback: "ارسال لوکیشن از طریق تلگرام 📍",
    locHow: "لوکیشن چطور استفاده میشه؟",
    locHowText: "لوکیشن فقط برای نشون دادن آدمای نزدیکته استفاده میشه. ما مختصات دقیق رو ذخیره می‌کنیم ولی هرگز با کسی به اشتراک نمی‌گذاریم.",
    resetLikes: "🔄 ریست لایک‌ها",
    testLogin: "🧪 ورود تست (بدون تلگرام)",
    emptyFeed: "فعلاً کسی توی فید نیست. بعداً برگرد 🔄",
    matchTitle: "💞 مچ شدید!",
    matchOk: "باشه ✅",
    noMatches: "هنوز مچی نداری. برو کشف کن! 🔍",
    tabDiscover: "کشف",
    tabQuiz: "کوئیز",
    tabProfile: "پروفایل",
    tabMatches: "مچ‌ها",
    saveProfile: "ذخیره پروفایل",
    voiceLabel: "ویس اینترو (۳۰ ثانیه)",
    record: "🎙 ضبط ویس",
    saveQuiz: "ذخیره کوئیز",
    photoLabel: "عکس پروفایل (لینک یا آپلود)",
    photoPlaceholder: "file_id یا آدرس عکس",
    compat: "هم‌خونی",
    sameCity: "هم‌شهری هستید",
    compatDefault: "شهر متفاوته ولی علایق مهمه",
    like: "لایک",
    pass: "رد",
  },
  en: {
    appName: "Winky",
    welcome: "Welcome to Winky 💞",
    welcomeDesc: "Welcome to Winky. Before we start, please confirm:",
    chooseLang: "Choose your language",
    chooseLangSub: "Select your language",
    langFa: "🇮🇷 فارسی",
    langEn: "🇬🇧 English",
    age: "Age",
    agePlaceholder: "Age",
    terms: "I am over 18 and accept the Winky Terms and Privacy Policy.",
    createAccount: "Create account ✨",
    nameLabel: "Display name",
    namePlaceholder: "e.g. Sara",
    province: "Province",
    cityLabel: "City",
    cityPlaceholder: "Tehran",
    next: "Next",
    back: "Back",
    genderLabel: "My gender",
    chooseGender: "Choose your gender",
    lookingLabel: "Looking for",
    female: "Female",
    male: "Male",
    other: "Other",
    wizIntent: "And what are you hoping to find?",
    wizIntentDesc: "It's your dating journey, so choose 1 or 2 options that feel right for you.",
    intentNote: "This will show on your profile to help everyone find what they're looking for.",
    errIntent: "Please select at least one option.",
    intent_long_term: "A long-term relationship",
    intent_life_partner: "A life partner",
    intent_casual: "Fun, casual dates",
    intent_intimacy: "Intimacy, without commitment",
    intent_marriage: "Marriage",
    intent_non_mono: "Ethical non-monogamy",
    wizLife: "Let's talk about your lifestyle and habits",
    wizLifeDesc: "Share as much about your habits as you're comfortable with.",
    life_drinking: "Drinking",
    life_drinking_yes: "Yes, I drink",
    life_drinking_sometimes: "I drink sometimes",
    life_drinking_rarely: "I rarely drink",
    life_drinking_no: "No, I don't drink",
    life_drinking_sober: "I'm sober",
    life_smoking: "Smoking",
    life_smoking_sometimes: "I smoke sometimes",
    life_smoking_no: "No, I don't smoke",
    life_smoking_yes: "Yes, I smoke",
    life_smoking_quitting: "I'm trying to quit",
    life_workout: "Workout",
    life_workout_daily: "Daily",
    life_workout_weekly: "Weekly",
    life_workout_rarely: "Rarely",
    life_workout_no: "No",
    wizInterests: "What are you into?",
    wizInterestsDesc: "Proud foodie or big on bouldering? Add interests to your profile to help you match with people who love them too.",
    selected: "selected",
    saving: "Saving...",
    errName: "name",
    errBirth: "birthdate",
    errGender: "gender",
    errPhoto: "Upload at least one photo",
    errVoice: "voice",
    errLoc: "Please set your location",
    locPleaseAllow: "Tap \"Allow\" to register your location",
    errFinish: "Please fill in:",
    errSave: "Sign-up failed — check your connection and try again.",
    int_cat_popular: "POPULAR",
    int_cat_arts: "ARTS",
    int_cat_film: "FILM",
    int_cat_food: "FOOD",
    int_cat_gaming: "GAMING",
    int_cat_music: "MUSIC",
    int_cat_sports: "SPORTS",
    int_cat_travel: "TRAVEL",
    int_cat_nature: "NATURE",
    int_cat_books: "BOOKS",
    int_cat_pets: "PETS",
    int_cat_wellness: "WELLNESS",
    life_pets: "Pets",
    life_pets_dog: "Dog",
    life_pets_cat: "Cat",
    life_pets_bird: "Bird",
    life_pets_fish: "Fish",
    life_pets_reptile: "Reptile",
    life_pets_hamster: "Hamster",
    life_pets_horse: "Horse",
    life_pets_free: "Pet-free",
    life_pets_want: "Want a pet",
    life_pets_allergic: "Allergic to pets",
    both: "Both",
    bioTitle: "Bio",
    bioDesc: "Write a short intro so others know who you are.",
    bioPlaceholder: "Sample bio...",
    photosTitle: "Your photos",
    photosDesc: "Upload up to 6 photos (first is your main). Tap a photo to make it main.",
    main: "Main ✅",
    pick: "Select",
    voiceTitle: "Voice intro 🎙",
    voiceDesc: "Record 30s of your voice — others hear it before seeing your face. (Optional)",
    record: "🎙 Record voice",
    done: "Ready? 🎉",
    doneDesc: "Your profile is ready. Go discover and meet compatible people.",
    enter: "Enter Winky 💞",
    errAge: "You must be over 18 to use this app.",
    errTerms: "Please accept the terms.",
    errName: "Please enter a name.",
    errGender: "Please select your gender.",
    errLooking: "Please select at least one option.",
    errAgeValid: "Please enter a valid age.",
    wizNameGender: "Name & Gender",
    wizBirth: "Date of Birth",
    wizBirthDesc: "Scroll up/down to pick your birth day, month and year",
    wizLooking: "Who would you like to meet?",
    wizLookingDesc: "You can choose more than one answer and change it any time.",
    openToEveryone: "I'm open to dating everyone.",
    shownToNote: "You'll only be shown to people looking to date your gender.",
    wizBio: "Bio",
    wizBioDesc: "Write a short intro so others know who you are.",
    wizPhotos: "Your photos",
    wizPhotosDesc: "Upload up to 6 photos (first is your main). Tap a photo to make it main.",
    uploading: "Uploading...",
    uploaded: "Uploaded ✓",
    errUpload: "Upload failed",
    errSignup: "Signup failed, please try again",
    ageConfirmTitle: "You're {age}",
    ageConfirmDesc: "Make sure this is your correct age as you can't change this later.",
    ageConfirmBtn: "Confirm My Age",
    ageCancelBtn: "Cancel",
    tapToClose: "Tap to close",
    cropTitle: "Crop your photo",
    cropApply: "Apply",
    cropCancel: "Cancel",
    cropWarn: "Zoom in so the photo fills the frame (no black bars) before applying.",
    skip: "Skip",
    tapToRecord: "Tap to record",
    recording: "Recording...",
    voiceRecorded: "Recorded ✓",
    voiceUploaded: "Voice uploaded ✓",
    voiceReady: "Listen — tap confirm if you're happy",
    reRecord: "Re-record",
    confirmVoice: "Confirm & send",
    processing: "Uploading...",
    micNeeded: "Microphone access needed 🎙",
    wizVoice: "Voice intro 🎙",
    wizVoiceDesc: "Record 30s of your voice — others hear it before seeing your face. (Optional)",
    wizDone: "Ready? 🎉",
    wizDoneDesc: "Your profile is ready. Go discover and meet compatible people.",
    wizLoc: "So, are you from around here?",
    wizLocDesc: "Set your location to see who's in your neighborhood or beyond. You won't be able to match with people otherwise.",
    locAllow: "Allow 📍",
    locWorking: "Getting location...",
    locSet: "✓ Location set",
    locDenied: "Permission denied — use the button below 📍",
    locNoGeo: "Browser doesn't support location — use the button below 📍",
    locTgFallback: "Share location via Telegram 📍",
    locHow: "How is my location used?",
    locHowText: "Your location is only used to show nearby people. We store your coordinates but never share them with anyone.",
    resetLikes: "🔄 Reset likes",
    testLogin: "🧪 Test login (no Telegram)",
    emptyFeed: "No one in the feed yet. Come back later 🔄",
    matchTitle: "💞 It's a match!",
    matchOk: "OK ✅",
    noMatches: "No matches yet. Go discover! 🔍",
    tabDiscover: "Discover",
    tabQuiz: "Quiz",
    tabProfile: "Profile",
    tabMatches: "Matches",
    saveProfile: "Save profile",
    voiceLabel: "Voice intro (30s)",
    record: "🎙 Record voice",
    saveQuiz: "Save quiz",
    photoLabel: "Profile photo (link or upload)",
    photoPlaceholder: "file_id or image URL",
    compat: "Match",
    sameCity: "You're from the same city",
    compatDefault: "Different cities but interests matter",
    like: "Like",
    pass: "Pass",
  },
};

let CUR_LANG = "fa";

function t(key, vars) {
  const dict = I18N[CUR_LANG] || I18N.fa;
  let s = dict[key] !== undefined ? dict[key] : (I18N.fa[key] !== undefined ? I18N.fa[key] : key);
  if (vars) for (const k in vars) s = s.replace(new RegExp("\\{" + k + "\\}", "g"), vars[k]);
  return s;
}

function setLang(lang) {
  CUR_LANG = lang;
  document.documentElement.lang = lang;
  document.documentElement.dir = lang === "fa" ? "rtl" : "ltr";
  try { localStorage.setItem("winky_lang", lang); } catch (e) {}
  applyI18n();
}

// Translate every element carrying data-i18n="key" using the current language.
function applyI18n(root) {
  const base = root || document;
  base.querySelectorAll("[data-i18n]").forEach(el => {
    const key = el.getAttribute("data-i18n");
    const val = t(key);
    if (el.tagName === "INPUT" || el.tagName === "TEXTAREA") {
      if (!el.value && el.hasAttribute("data-i18n-ph")) el.placeholder = t(el.getAttribute("data-i18n-ph"));
      else if (!el.value) el.placeholder = val;
      return;
    }
    if (el.hasAttribute("data-i18n-ph")) el.placeholder = t(el.getAttribute("data-i18n-ph"));
    el.textContent = val;
  });
  // aria-label translations
  base.querySelectorAll("[data-i18n-aria]").forEach(el => {
    el.setAttribute("aria-label", t(el.getAttribute("data-i18n-aria")));
  });
  // also handle placeholder-only attributes
  base.querySelectorAll("[data-i18n-ph]").forEach(el => {
    if (!el.hasAttribute("data-i18n")) el.placeholder = t(el.getAttribute("data-i18n-ph"));
  });
}

// Compute age in years from an ISO birthdate string (YYYY-MM-DD), with the
// exact birthday taken into account. Returns 0 if the date is missing/invalid.
function calcAge(birthdate) {
  if (!birthdate || birthdate.length < 8) return 0;
  const [y, m, d] = birthdate.split("-").map(Number);
  if (!y || !m || !d) return 0;
  const now = new Date();
  let age = now.getFullYear() - y;
  const hadBirthday =
    now.getMonth() + 1 > m || (now.getMonth() + 1 === m && now.getDate() >= d);
  if (!hadBirthday) age--;
  return age < 0 ? 0 : age;
}