add application service

Logic like the creation of an issue ID does not belong into the CLI app,
so we create the first class of the fix issue bounded context.

Author: arnemertz

src/CMakeLists.txt

@@ -1,6 +1,7 @@
 # Generic test that uses conan libs
 
 add_subdirectory(fix_cli)
+add_subdirectory(domain)
 
 add_executable(fix main.cpp)
 target_link_libraries(

src/domain/CMakeLists.txt

@@ -0,0 +1,11 @@
+set(DOMAIN_SOURCES
+    application_service.cpp
+    )
+
+add_library(domain ${DOMAIN_SOURCES})
+target_link_libraries(domain
+    PRIVATE
+    project_warnings
+    project_options
+    )
+target_include_directories(domain PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)

src/domain/application_service.cpp

@@ -0,0 +1,9 @@
+#include "application_service.hpp"
+
+using namespace fix::domain;
+
+std::string application_service::create(std::string_view title, std::string_view description) { // NOLINT
+  (void) title;
+  (void) description;
+  return "thi-is-a-new-0000000";
+}

src/domain/application_service.hpp

@@ -0,0 +1,16 @@
+#ifndef FIX_DOMAIN_APPLICATION_SERVICE_HPP
+#define FIX_DOMAIN_APPLICATION_SERVICE_HPP
+
+#include <string>
+
+namespace fix::domain {
+
+class application_service {
+public:
+  // cppcheck-suppress functionStatic
+  std::string create(std::string_view title, std::string_view description);
+};
+
+}
+
+#endif // FIX_DOMAIN_APPLICATION_SERVICE_HPP

test/CMakeLists.txt

@@ -10,3 +10,4 @@ target_link_libraries(catch_main PUBLIC CONAN_PKG::catch2)
 target_link_libraries(catch_main PRIVATE project_options)
 
 add_subdirectory(fix_cli)
+add_subdirectory(domain)

test/domain/CMakeLists.txt

@@ -0,0 +1,9 @@
+set(DOMAIN_TEST_SOURCES
+    application_service_test.cpp
+    )
+
+add_executable(domain_tests ${DOMAIN_TEST_SOURCES})
+target_link_libraries(domain_tests
+    PRIVATE project_warnings project_options catch_main domain)
+
+catch_discover_tests(domain_tests TEST_PREFIX "DOMAIN: ")

test/domain/application_service_test.cpp

@@ -0,0 +1,10 @@
+#include <catch2/catch.hpp>
+
+#include "application_service.hpp"
+
+using fix::domain::application_service;
+
+TEST_CASE("Create issue returns issue ID") {
+  application_service application_service;
+  CHECK_THAT(application_service.create("this is a new issue", "some text"), Catch::Matches("thi-is-a-new-[0-9a-f]{7}"));
+}