Improved

Author: snandasena

app/CMakeLists.txt

@@ -6,4 +6,5 @@ add_subdirectory(external)
 add_subdirectory(common)
 add_subdirectory(interfaces)
 add_subdirectory(parsers)
-add_subdirectory(configs)
+add_subdirectory(configs)
+add_subdirectory(auth)

app/auth/CMakeLists.txt

@@ -0,0 +1,22 @@
+project(Auth)
+
+
+include_directories(${PROJECT_SOURCE_DIR}/include)
+
+set(HEADERS
+        ${PROJECT_SOURCE_DIR}/include/auth/AuthManager.h
+        )
+
+set(SOURCES
+        ${PROJECT_SOURCE_DIR}/src/AuthManager.cpp
+        )
+
+add_library(${PROJECT_NAME} STATIC ${SOURCES} ${HEADERS})
+
+target_link_libraries(${PROJECT_NAME} PRIVATE
+        Common
+        Interfaces
+        )
+
+
+target_include_directories(${PROJECT_NAME} PUBLIC ${PROJECT_SOURCE_DIR}/include)

app/auth/include/auth/AuthManager.h

@@ -0,0 +1,34 @@
+//
+// Created by sajith on 6/28/22.
+//
+
+#ifndef DESIGN_PATTERNS_AUTHMANAGER_H
+#define DESIGN_PATTERNS_AUTHMANAGER_H
+
+#include "auth/IAuthentication.h"
+#include "auth/IAuthorization.h"
+
+#include <functional>
+#include <set>
+
+#include "types/User.h"
+
+namespace auth
+{
+    class AuthManger : public IAuthorization, public IAuthentication
+    {
+    public:
+
+        AuthManger();
+
+        bool authenticate(const types::Login &, const types::Password &) const override;
+
+        bool isAuthorized(const types::Login &, std::uint32_t) const override;
+
+    private:
+
+        std::set<types::User, std::less<>> users;
+    };
+}
+
+#endif //DESIGN_PATTERNS_AUTHMANAGER_H

app/auth/src/AuthManager.cpp

@@ -0,0 +1,31 @@
+//
+// Created by sajith on 6/28/22.
+//
+
+#include "auth/AuthManager.h"
+
+
+namespace
+{
+    const types::Login dummyLogin{"John Doe"};
+    const types::Password dummyPassword{"@12345"};
+    const std::set<std::uint32_t> dummyTaxpayerIds{1, 2, 3, 4, 5, 5, 6, 8, 9, 10};
+}
+
+namespace auth
+{
+    AuthManger::AuthManger() : users{types::User{dummyLogin, dummyPassword, dummyTaxpayerIds}}
+    {}
+
+    bool AuthManger::authenticate(const types::Login &login, const types::Password &password) const
+    {
+        const auto itr = users.find(login);
+        return itr != users.end() && itr->password.value == password.value;
+    }
+
+    bool AuthManger::isAuthorized(const types::Login &login, std::uint32_t taxpayer_id) const
+    {
+        const auto itr = users.find(login);
+        return itr != users.end() && itr->taxpayers.count(taxpayer_id) > 0;
+    }
+}

app/interfaces/include/interfaces/auth/IAuthentication.h

@@ -0,0 +1,22 @@
+//
+// Created by sajith on 6/28/22.
+//
+
+#ifndef DESIGN_PATTERNS_IAUTHENTICATION_H
+#define DESIGN_PATTERNS_IAUTHENTICATION_H
+
+#include "types/User.h"
+
+namespace auth
+{
+    class IAuthentication
+    {
+    public:
+
+        virtual ~IAuthentication() = default;
+
+        virtual bool authenticate(const types::Login &, const types::Password &) const = 0;
+    };
+}
+
+#endif //DESIGN_PATTERNS_IAUTHENTICATION_H

app/interfaces/include/interfaces/auth/IAuthorization.h

@@ -0,0 +1,21 @@
+//
+// Created by sajith on 6/28/22.
+//
+
+#ifndef DESIGN_PATTERNS_IAUTHORIZATION_H
+#define DESIGN_PATTERNS_IAUTHORIZATION_H
+
+#include "types/User.h"
+
+namespace auth
+{
+    class IAuthorization
+    {
+    public:
+
+        virtual  ~IAuthorization() = default;
+
+        virtual bool isAuthorized(const types::Login &, std::uint32_t) const = 0;
+    };
+}
+#endif //DESIGN_PATTERNS_IAUTHORIZATION_H