巴西合法账号binding

app/src/main/java/com/gamedog/vididin/features/withdraw/BankUtil.kt

@@ -0,0 +1,51 @@
+package com.gamedog.vididin.features.withdraw
+
+object BankUtil {
+
+    /**
+     * 验证输入的巴西CPF号码是否合法。
+     *
+     * @param cpf 待验证的CPF字符串，可以包含分隔符（如 XXX.XXX.XXX-XX）或仅为纯数字。
+     * @return 如果CPF格式正确且校验码有效则返回true，否则返回false。
+     */
+    fun isValidCpf(cpf: String?): Boolean {
+        if (cpf.isNullOrBlank()) {
+            return false
+        }
+
+        // 1. 提取纯数字
+        val cleanCpf = cpf.replace("[^\\d]".toRegex(), "")
+
+        // 2. 初步格式验证：必须是11位数字，且不能所有数字相同（如111.111.111-11）
+        if (cleanCpf.length != 11 || cleanCpf.all { it == cleanCpf[0] }) {
+            return false
+        }
+
+        // 3. 计算并验证第一个校验位
+        val firstCheckDigit = calculateCheckDigit(cleanCpf, 9, 10)
+        if (firstCheckDigit != cleanCpf[9].toString().toInt()) {
+            return false
+        }
+
+        // 4. 计算并验证第二个校验位
+        val secondCheckDigit = calculateCheckDigit(cleanCpf, 10, 11)
+        return secondCheckDigit == cleanCpf[10].toString().toInt()
+    }
+
+    /**
+     * 计算CPF的校验位。
+     *
+     * @param digits 纯数字的CPF字符串。
+     * @param length 参与计算的前几位数字的长度。
+     * @param weight 起始权重。
+     * @return 计算出的校验位数字。
+     */
+    private fun calculateCheckDigit(digits: String, length: Int, weight: Int): Int {
+        var sum = 0
+        for (i in 0 until length) {
+            sum += digits[i].toString().toInt() * (weight - i)
+        }
+        val remainder = sum % 11
+        return if (remainder < 2) 0 else 11 - remainder
+    }
+}

app/src/main/java/com/gamedog/vididin/features/withdraw/WithdrawBindBankDialog.kt

@@ -2,8 +2,12 @@ package com.gamedog.vididin.features.withdraw
 
 
 import android.content.Context
+import android.text.Editable
+import android.text.TextWatcher
+import androidx.core.view.isVisible
 import com.ama.core.architecture.util.setOnClickBatch
 import com.ama.core.architecture.widget.BindingDialog
+import com.gamedog.vididin.R
 import com.gamedog.vididin.databinding.DialogWithdrawBindingBankBinding as ViewBinding
 import com.gamedog.vididin.router.Router
 
@@ -29,6 +33,50 @@ class WithdrawBindBankDialog(context: Context) : BindingDialog<ViewBinding>(cont
                     }
                 }
             }
+
+
+
+            tvCpfEdit.addTextChangedListener(object : TextWatcher {
+                override fun afterTextChanged(s: Editable?) {
+                    checkBankAccountValidation(s.toString())
+                }
+
+                override fun beforeTextChanged(
+                    s: CharSequence?,
+                    start: Int,
+                    count: Int,
+                    after: Int
+                ) {
+                }
+
+                override fun onTextChanged(
+                    s: CharSequence?,
+                    start: Int,
+                    before: Int,
+                    count: Int
+                ) {
+                }
+
+            })
+
+
+        }
+
+        checkBankAccountValidation("")
+    }
+
+    private fun checkBankAccountValidation(bankAccount: String) {
+        // TODO - forTesting- contain "B"
+        if (BankUtil.isValidCpf(bankAccount)  || bankAccount.contains("B")) {
+            mBinding.ivState.isVisible = true
+            mBinding.ivState.setImageResource(R.mipmap.icon_success)
+            mBinding.tvConfirm.alpha = 1F
+            mBinding.tvConfirm.isClickable = true
+        } else {
+            mBinding.ivState.isVisible = !bankAccount.isEmpty()
+            mBinding.ivState.setImageResource(R.mipmap.icon_fail)
+            mBinding.tvConfirm.alpha = 0.3F
+            mBinding.tvConfirm.isClickable = false
         }
     }
 
@@ -36,6 +84,9 @@ class WithdrawBindBankDialog(context: Context) : BindingDialog<ViewBinding>(cont
         ownerActivity?.let { Router.Withdraw.startActivity(it) }
     }
 
+    override fun onDetachedFromWindow() {
+        super.onDetachedFromWindow()
+    }
 
 
 }