Add password check implementation

homework/password-check/validation.cpp

@@ -1,2 +1,55 @@
 #include "validation.hpp"
-// TODO: Put implementations here
+#include <algorithm>
+#include <cstdlib>
+#include <ctime>
+
+std::string getErrorMessage(ErrorCode errorCode) {
+    int errorCodeNum = static_cast<int>(errorCode);
+    switch (errorCodeNum) {
+    case 0:
+        return "Ok";
+        break;
+    case 1:
+        return "Password needs to have at least nine characters";
+        break;
+    case 2:
+        return "Password needs to have at least one number";
+        break;
+    case 3:
+        return "Password needs to have at least one special character";
+        break;
+    case 4:
+        return "Password needs to have at least one uppercase letter";
+        break;
+    case 5:
+        return "Passwords do not match";
+        break;
+    default:
+        return "Invalid error";
+        break;
+    }
+}
+
+bool doPasswordsMatch(std::string passwordA, std::string passwordB) {
+    return (passwordA == passwordB) ? true : false;
+}
+
+ErrorCode checkPasswordRules(std::string password) {
+    if (password.size() < 9)
+        return ErrorCode::PasswordNeedsAtLeastNineCharacters;
+    else if (std::none_of(password.begin(), password.end(), isdigit))
+        return ErrorCode::PasswordNeedsAtLeastOneNumber;
+    else if (std::all_of(password.begin(), password.end(), isalnum))
+        return ErrorCode::PasswordNeedsAtLeastOneSpecialCharacter;
+    else if (std::none_of(password.begin(), password.end(), isupper))
+        return ErrorCode::PasswordNeedsAtLeastOneUppercaseLetter;
+    else
+        return ErrorCode::Ok;
+}
+
+ErrorCode checkPassword(std::string password, std::string repeatedPassword) {
+    if (doPasswordsMatch(password, repeatedPassword))
+        return checkPasswordRules(password);
+    else
+        return ErrorCode::PasswordsDoNotMatch;
+}

homework/password-check/validation.hpp

@@ -1,2 +1,16 @@
-// TODO: I'm empty :) Put enum and function headers here.
-// Don't forget the header guard - #pragma once
+#pragma once
+#include <string>
+
+enum class ErrorCode {
+    Ok,
+    PasswordNeedsAtLeastNineCharacters,
+    PasswordNeedsAtLeastOneNumber,
+    PasswordNeedsAtLeastOneSpecialCharacter,
+    PasswordNeedsAtLeastOneUppercaseLetter,
+    PasswordsDoNotMatch
+};
+
+std::string getErrorMessage(ErrorCode errorCode);
+bool doPasswordsMatch(std::string passwordA, std::string passwordB);
+ErrorCode checkPasswordRules(std::string password);
+ErrorCode checkPassword(std::string password, std::string repeatedPassword);