face regonition refine

app/src/main/java/com/digitalperson/util/SmartGreetingUtil.kt

@@ -0,0 +1,99 @@
+package com.digitalperson.util
+
+import android.content.Context
+import android.location.LocationManager
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
+import android.os.Build
+import java.text.SimpleDateFormat
+import java.util.*
+
+class SmartGreetingUtil(private val context: Context) {
+    
+    // 中国主要节日（月，日）
+    private val festivals = mapOf(
+        Pair(1, 1) to "元旦",
+        Pair(2, 14) to "情人节",
+        Pair(3, 8) to "妇女节",
+        Pair(3, 12) to "植树节",
+        Pair(4, 1) to "愚人节",
+        Pair(5, 1) to "劳动节",
+        Pair(5, 4) to "青年节",
+        Pair(6, 1) to "儿童节",
+        Pair(7, 1) to "建党节",
+        Pair(8, 1) to "建军节",
+        Pair(9, 10) to "教师节",
+        Pair(10, 1) to "国庆节",
+        Pair(12, 25) to "圣诞节"
+    )
+    
+    // 获取当前时间问候语
+    fun getTimeBasedGreeting(): String {
+        val hour = Calendar.getInstance().get(Calendar.HOUR_OF_DAY)
+        return when {
+            hour in 6..11 -> "早上好"
+            hour in 12..17 -> "下午好"
+            hour in 18..22 -> "晚上好"
+            else -> "夜深了"
+        }
+    }
+    
+    // 检查今天是否是节日
+    fun isFestivalToday(): Pair<Boolean, String> {
+        val calendar = Calendar.getInstance()
+        val month = calendar.get(Calendar.MONTH) + 1 // 月份从0开始
+        val day = calendar.get(Calendar.DAY_OF_MONTH)
+        
+        val festival = festivals[Pair(month, day)]
+        return Pair(festival != null, festival ?: "")
+    }
+    
+    // 获取完整的问候语
+    fun getSmartGreeting(name: String?): String {
+        val (isFestival, festivalName) = isFestivalToday()
+        
+        return if (isFestival) {
+            if (name.isNullOrBlank()) {
+                "小朋友好！今天是${festivalName}，祝你${festivalName}快乐哦！"
+            } else {
+                "你好，${name}！今天是${festivalName}，祝你${festivalName}快乐哦！"
+            }
+        } else {
+            val timeGreeting = getTimeBasedGreeting()
+            if (name.isNullOrBlank()) {
+                "${timeGreeting}，很高兴见到你。请问你叫什么名字呀？"
+            } else {
+                "${timeGreeting}，${name}，很高兴见到你。"
+            }
+        }
+    }
+    
+    // 检查网络连接
+    fun isNetworkConnected(): Boolean {
+        val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            val network = connectivityManager.activeNetwork ?: return false
+            val capabilities = connectivityManager.getNetworkCapabilities(network) ?: return false
+            return capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+        } else {
+            val networkInfo = connectivityManager.activeNetworkInfo ?: return false
+            return networkInfo.isConnected
+        }
+    }
+    
+    // 获取当前日期和时间
+    fun getCurrentDateTime(): String {
+        val sdf = SimpleDateFormat("yyyy年MM月dd日 HH:mm", Locale.CHINA)
+        return sdf.format(Date())
+    }
+    
+    // 生成节日问候语提示词（用于本地LLM）
+    fun getFestivalGreetingPrompt(festivalName: String, name: String?): String {
+        val basePrompt = "今天是$festivalName，请生成一条适合小学生的节日问候语，语气活泼友好，简短亲切。"
+        return if (name.isNullOrBlank()) {
+            basePrompt
+        } else {
+            "$basePrompt 问候对象叫$name。"
+        }
+    }
+}