Created Password Generator ViewModel

app/src/main/java/com/geekymusketeers/uncrack/presentation/account/PasswordGeneratorViewModel.kt

@@ -0,0 +1,85 @@
+package com.geekymusketeers.uncrack.presentation.account
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import dagger.hilt.android.lifecycle.HiltViewModel
+
+@HiltViewModel
+class PasswordGeneratorViewModel : ViewModel() {
+
+    private val _password = MutableLiveData<String>()
+    val password: LiveData<String> = _password
+
+    private val _passwordLength = MutableLiveData<Int>()
+    val passwordLength: LiveData<Int> = _passwordLength
+
+    private val _includeUppercase = MutableLiveData<Boolean>()
+    val includeUppercase: LiveData<Boolean> = _includeUppercase
+
+    private val _includeLowercase = MutableLiveData<Boolean>()
+    val includeLowercase: LiveData<Boolean> = _includeLowercase
+
+    private val _includeNumbers = MutableLiveData<Boolean>()
+    val includeNumbers: LiveData<Boolean> = _includeNumbers
+
+    private val _includeSpecialChars = MutableLiveData<Boolean>()
+    val includeSpecialChars: LiveData<Boolean> = _includeSpecialChars
+
+    fun generatePassword() {
+        _password.value = generatePassword(
+            _passwordLength.value,
+            _includeUppercase.value,
+            _includeLowercase.value,
+            _includeNumbers.value,
+            _includeSpecialChars.value
+        )
+    }
+
+    fun updatePasswordLength(newLength: Int) {
+        _passwordLength.value = newLength
+    }
+
+    fun updateIncludeUppercase(include: Boolean) {
+        _includeUppercase.value = include
+    }
+
+    fun updateIncludeLowercase(include: Boolean) {
+        _includeLowercase.value = include
+    }
+
+    fun updateIncludeNumbers(include: Boolean) {
+        _includeNumbers.value = include
+    }
+
+    fun updateIncludeSpecialChars(include: Boolean) {
+        _includeSpecialChars.value = include
+    }
+
+    private fun generatePassword(
+        length: Int?,
+        includeUppercase: Boolean?,
+        includeLowercase: Boolean?,
+        includeNumbers: Boolean?,
+        includeSpecialChars: Boolean?
+    ): String {
+        val charPool = buildString {
+            if (includeUppercase == true) {
+                append("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
+            }
+            if (includeLowercase == true) {
+                append("abcdefghijklmnopqrstuvwxyz")
+            }
+            if (includeNumbers == true) {
+                append("0123456789")
+            }
+            if (includeSpecialChars == true) {
+                append("!@#$%^&*()_+")
+            }
+        }
+
+        return (1..length!!)
+            .map { charPool.random() }
+            .joinToString("")
+    }
+}