feat: Implement Recent Searches functionality in SearchScreen for improved user experience

2026-01-12 17:05:38 +05:00
parent 325c5ace4b
commit 67e99901be
5 changed files with 273 additions and 11 deletions
--- a/app/src/main/java/com/rosetta/messenger/data/RecentSearchesManager.kt
+++ b/app/src/main/java/com/rosetta/messenger/data/RecentSearchesManager.kt
@@ -0,0 +1,104 @@
+package com.rosetta.messenger.data
+
+import android.content.Context
+import android.content.SharedPreferences
+import com.rosetta.messenger.network.SearchUser
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import org.json.JSONArray
+import org.json.JSONObject
+
+/**
+ * Менеджер для хранения недавно открытых пользователей (до 15 записей)
+ */
+object RecentSearchesManager {
+    private const val PREFS_NAME = "recent_searches"
+    private const val KEY_USERS = "recent_users"
+    private const val MAX_USERS = 15
+    
+    private lateinit var prefs: SharedPreferences
+    private val _recentUsers = MutableStateFlow<List<SearchUser>>(emptyList())
+    val recentUsers: StateFlow<List<SearchUser>> = _recentUsers.asStateFlow()
+    
+    fun init(context: Context) {
+        prefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+        loadUsers()
+    }
+    
+    private fun loadUsers() {
+        val usersJson = prefs.getString(KEY_USERS, "[]") ?: "[]"
+        try {
+            val jsonArray = JSONArray(usersJson)
+            val users = mutableListOf<SearchUser>()
+            for (i in 0 until jsonArray.length()) {
+                val obj = jsonArray.getJSONObject(i)
+                users.add(
+                    SearchUser(
+                        publicKey = obj.getString("publicKey"),
+                        username = obj.optString("username", ""),
+                        title = obj.optString("title", ""),
+                        verified = obj.optInt("verified", 0),
+                        online = obj.optInt("online", 0)
+                    )
+                )
+            }
+            _recentUsers.value = users
+        } catch (e: Exception) {
+            _recentUsers.value = emptyList()
+        }
+    }
+    
+    /**
+     * Добавить пользователя в историю
+     */
+    fun addUser(user: SearchUser) {
+        val currentUsers = _recentUsers.value.toMutableList()
+        
+        // Удаляем если уже есть (чтобы переместить наверх)
+        currentUsers.removeAll { it.publicKey == user.publicKey }
+        
+        // Добавляем в начало
+        currentUsers.add(0, user)
+        
+        // Ограничиваем до MAX_USERS
+        val limitedUsers = currentUsers.take(MAX_USERS)
+        
+        // Сохраняем
+        _recentUsers.value = limitedUsers
+        saveUsers(limitedUsers)
+    }
+    
+    /**
+     * Удалить пользователя из истории
+     */
+    fun removeUser(publicKey: String) {
+        val currentUsers = _recentUsers.value.toMutableList()
+        currentUsers.removeAll { it.publicKey == publicKey }
+        _recentUsers.value = currentUsers
+        saveUsers(currentUsers)
+    }
+    
+    /**
+     * Очистить всю историю
+     */
+    fun clearAll() {
+        _recentUsers.value = emptyList()
+        prefs.edit().remove(KEY_USERS).apply()
+    }
+    
+    private fun saveUsers(users: List<SearchUser>) {
+        val jsonArray = JSONArray()
+        users.forEach { user ->
+            val obj = JSONObject().apply {
+                put("publicKey", user.publicKey)
+                put("username", user.username)
+                put("title", user.title)
+                put("verified", user.verified)
+                put("online", user.online)
+            }
+            jsonArray.put(obj)
+        }
+        prefs.edit().putString(KEY_USERS, jsonArray.toString()).apply()
+    }
+}