// Oil English names map
const OIL_EN = {
  '薰衣草': 'Lavender', '茶树': 'Tea Tree', '乳香': 'Frankincense',
  '柠檬': 'Lemon', '椒样薄荷': 'Peppermint', '丝柏': 'Cypress',
  '尤加利': 'Eucalyptus', '迷迭香': 'Rosemary', '天竺葵': 'Geranium',
  '依兰依兰': 'Ylang Ylang', '佛手柑': 'Bergamot', '生姜': 'Ginger',
  '没药': 'Myrrh', '檀香': 'Sandalwood', '雪松': 'Cedarwood',
  '罗马洋甘菊': 'Roman Chamomile', '永久花': 'Helichrysum',
  '快乐鼠尾草': 'Clary Sage', '广藿香': 'Patchouli',
  '百里香': 'Thyme', '牛至': 'Oregano', '冬青': 'Wintergreen',
  '肉桂': 'Cinnamon', '丁香': 'Clove', '黑胡椒': 'Black Pepper',
  '葡萄柚': 'Grapefruit', '橙花': 'Neroli', '玫瑰': 'Rose',
  '岩兰草': 'Vetiver', '马郁兰': 'Marjoram', '芫荽': 'Coriander',
  '柠檬草': 'Lemongrass', '杜松浆果': 'Juniper Berry', '甜橙': 'Wild Orange',
  '香茅': 'Citronella', '薄荷': 'Peppermint', '扁柏': 'Arborvitae',
  '古巴香脂': 'Copaiba', '椰子油': 'Coconut Oil',
  '芳香调理': 'AromaTouch', '保卫复方': 'On Guard', '保卫': 'On Guard',
  '乐活复方': 'Balance', '乐活': 'DigestZen',
  '舒缓复方': 'Past Tense', '舒缓': 'Deep Blue',
  '净化复方': 'Purify', '净化清新': 'Purify',
  '呼吸复方': 'Breathe', '顺畅呼吸': 'Breathe',
  '舒压复方': 'Adaptiv', '安定情绪': 'Balance',
  '安宁神气': 'Serenity', '多特瑞': 'doTERRA',
  '野橘': 'Wild Orange', '柑橘清新': 'Citrus Bliss',
  '新瑞活力': 'MetaPWR', '元气': 'Zendocrine',
  '温柔呵护': 'ClaryCalm', '西洋蓍草': 'Yarrow|Pom',
  '西班牙牛至': 'Oregano',
}

export function oilEn(name) {
  if (OIL_EN[name]) return OIL_EN[name]
  // Try without common suffixes
  const base = name.replace(/复方$|呵护$/, '')
  if (base !== name && OIL_EN[base]) return OIL_EN[base]
  // Try adding suffixes
  if (OIL_EN[name + '复方']) return OIL_EN[name + '复方']
  return ''
}

const RECIPE_KEYWORDS = {
  '头疗':'Scalp Therapy','头痛':'Headache','偏头痛':'Migraine','头皮':'Scalp','头发':'Hair',
  '肩颈':'Neck & Shoulder','颈椎':'Cervical','肩':'Shoulder','腰椎':'Lumbar','腰':'Lower Back',
  '关节':'Joint','膝':'Knee','背':'Back','胸':'Chest','腹部':'Abdominal',
  '乳腺':'Breast','子宫':'Uterine','私密':'Intimate','卵巢':'Ovarian',
  '淋巴':'Lymph','肝':'Liver','肾':'Kidney','脾':'Spleen','胃':'Stomach','肺':'Lung','肠':'Intestinal',
  '酸痛':'Pain Relief','疼痛':'Pain Relief','止痛':'Pain Relief',
  '感冒':'Cold','发烧':'Fever','咳嗽':'Cough','咽喉':'Throat',
  '过敏':'Allergy','鼻炎':'Rhinitis','哮喘':'Asthma',
  '湿疹':'Eczema','痘痘':'Acne','粉刺':'Acne',
  '消炎':'Anti-Inflammatory','便秘':'Constipation','消化':'Digestion',
  '失眠':'Insomnia','助眠':'Sleep Aid','好眠':'Sleep Well','安眠':'Sleep',
  '焦虑':'Anxiety','抑郁':'Depression','情绪':'Emotional',
  '压力':'Stress','放松':'Relaxation','舒缓':'Soothing',
  '水肿':'Edema','痛经':'Menstrual Pain','月经':'Menstrual','更年期':'Menopause','荷尔蒙':'Hormone',
  '结节':'Nodule','囊肿':'Cyst','灰指甲':'Nail Fungus','脚气':'Athlete\'s Foot',
  '白发':'Gray Hair','脱发':'Hair Loss','生发':'Hair Growth',
  '瘦身':'Slimming','紫外线':'UV','抗衰':'Anti-Aging','美白':'Whitening','补水':'Hydrating',
  '排毒':'Detox','净化':'Purifying','驱蚊':'Mosquito Repellent',
  '护理':'Care','调理':'Therapy','修复':'Repair','养护':'Nourish',
  '按摩':'Massage','刮痧':'Gua Sha','泡脚':'Foot Soak','精油浴':'Oil Bath',
  '喷雾':'Spray','扩香':'Diffuser',
  '疏通':'Unblock','祛湿':'Dampness Relief','驱寒':'Warming','健脾':'Spleen Wellness',
  '美容':'Beauty','面膜':'Face Mask','发膜':'Hair Mask',
  '配方':'Blend','方':'Blend','包':'Blend',
  '增强版':'Enhanced','高配版':'Premium','男士':'Men\'s','儿童':'Children\'s',
  '呼吸系统':'Respiratory System','呼吸':'Respiratory','免疫':'Immunity',
  '缓解':'Relief','改善':'Improve','预防':'Prevention',
  '带脉':'Belt Meridian','经络':'Meridian','静脉曲张':'Varicose Veins',
  '口腔溃疡':'Mouth Ulcer','口唇疱疹':'Cold Sore','蚊虫叮咬':'Insect Bite',
  '暖宫':'Uterus Warming','调经':'Menstrual Regulation',
}
const _SORTED = Object.keys(RECIPE_KEYWORDS).sort((a, b) => b.length - a.length)

export function recipeNameEn(name) {
  if (!name) return name
  const parts = []
  let i = 0
  while (i < name.length) {
    let matched = false
    for (const key of _SORTED) {
      if (name.substring(i, i + key.length) === key) {
        const en = RECIPE_KEYWORDS[key]
        if (!parts.includes(en)) parts.push(en)
        i += key.length
        matched = true
        break
      }
    }
    if (!matched) i++
  }
  return parts.length ? parts.join(' ') : name
}

// Custom translations (can be set by admin)
const customTranslations = {}

export function setCustomTranslation(zhName, enName) {
  customTranslations[zhName] = enName
}

export function getCustomTranslation(zhName) {
  return customTranslations[zhName]
}