From 5097ee542ebd331dddbc41cfb6b2b4f798a04271 Mon Sep 17 00:00:00 2001
From: szymon <szy.gladysz@proton.me>
Date: Tue, 22 Sep 2026 10:44:40 +0200
Subject: [PATCH] implemented password-check

---
 homework/password-check/validation.cpp | 73 +++++++++++++++++++++++++-
 homework/password-check/validation.hpp | 21 +++++++-
 2 files changed, 92 insertions(+), 2 deletions(-)

diff --git a/homework/password-check/validation.cpp b/homework/password-check/validation.cpp
index a2f12ff3..7497a249 100644
--- a/homework/password-check/validation.cpp
+++ b/homework/password-check/validation.cpp
@@ -1,2 +1,73 @@
 #include "validation.hpp"
-// TODO: Put implementations here
\ No newline at end of file
+#include <algorithm>
+#include <cctype>
+#include <vector>
+
+std::vector<char> SPECIAL_CHARACTERS = {33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 58, 59, 60, 61, 62, 63, 64};
+
+std::string getErrorMessage(ErrorCode code) {
+    switch (code) {
+    case ErrorCode::Ok:
+        return "Ok";
+    case ErrorCode::PasswordNeedsAtLeastNineCharacters:
+        return "Password needs to have at least nine characters";
+    case ErrorCode::PasswordNeedsAtLeastOneNumber:
+        return "Password needs to have at least one number";
+    case ErrorCode::PasswordNeedsAtLeastOneSpecialCharacter:
+        return "Password needs to have at least one special character";
+    case ErrorCode::PasswordNeedsAtLeastOneUppercaseLetter:
+        return "Password needs to have at least one uppercase letter";
+    default:
+        return "Passwords do not match";
+    }
+
+    return "";
+}
+
+bool doPasswordsMatch(const std::string& password1, const std::string& password2) {
+    return password1 == password2;
+}
+
+ErrorCode checkPasswordRules(const std::string& password) {
+    if (password.size() < 9) {
+        return ErrorCode::PasswordNeedsAtLeastNineCharacters;
+    }
+
+    bool numbers = false;
+    bool special = false;
+    bool upper = false;
+    for (auto chr : password) {
+        if (isdigit(chr) && !numbers) {
+            numbers = true;
+        }
+        if (!special) {
+            if (std::find(SPECIAL_CHARACTERS.begin(), SPECIAL_CHARACTERS.end(), chr) != SPECIAL_CHARACTERS.end()) {
+                special = true;
+            }
+        }
+        if (isupper(chr) && !upper) {
+            upper = true;
+        }
+    }
+    if (!numbers) {
+        return ErrorCode::PasswordNeedsAtLeastOneNumber;
+    }
+
+    if (!special) {
+        return ErrorCode::PasswordNeedsAtLeastOneSpecialCharacter;
+    }
+
+    if (!upper) {
+        return ErrorCode::PasswordNeedsAtLeastOneUppercaseLetter;
+    }
+
+    return ErrorCode::Ok;
+}
+
+ErrorCode checkPassword(const std::string& password1, const std::string& password2) {
+    if (!doPasswordsMatch(password1, password2)) {
+        return ErrorCode::PasswordsDoNotMatch;
+    }
+
+    return ErrorCode::Ok;
+}
\ No newline at end of file
diff --git a/homework/password-check/validation.hpp b/homework/password-check/validation.hpp
index 85160868..f0f192f7 100644
--- a/homework/password-check/validation.hpp
+++ b/homework/password-check/validation.hpp
@@ -1,2 +1,21 @@
 // TODO: I'm empty :) Put enum and function headers here.
-// Don't forget the header guard - #pragma once
\ No newline at end of file
+// Don't forget the header guard - #pragma once
+#pragma once
+#include <iostream>
+
+enum ErrorCode {
+    Ok,
+    PasswordNeedsAtLeastNineCharacters,
+    PasswordNeedsAtLeastOneNumber,
+    PasswordNeedsAtLeastOneSpecialCharacter,
+    PasswordNeedsAtLeastOneUppercaseLetter,
+    PasswordsDoNotMatch,
+};
+
+std::string getErrorMessage(ErrorCode code);
+
+bool doPasswordsMatch(const std::string& password1, const std::string& password2);
+
+ErrorCode checkPasswordRules(const std::string& password);
+
+ErrorCode checkPassword(const std::string& password1, const std::string& password2);
\ No newline at end of file