docs: further setting up structure

backend/src/builtin-cli.cpp

@@ -2,15 +2,34 @@
 
 #include <iostream>
 
-#include "schedule.h"
 #include "bs-utility.h"
+#include "schedule.h"
 void BookStoreMain(bool is_server, std::string config_dir) {
   std::ios::sync_with_stdio(false);
   if (!is_server) {
     ;  // TODO: run as client
   } else {
-    throw FatalError("Server mode is not implemented yet", 1);
     std::cin.tie(nullptr);
     std::cout.rdbuf(nullptr);
+    BlockingStringStream input;
+    BlockingStringStream output;
+    BookStoreBackEndClass backend(config_dir, &input, &output);
+    std::thread backend_thread([&backend]() { backend.Run(); });
+    std::thread input_thread([&input]() {
+      std::string data;
+      while (std::getline(std::cin, data)) {
+        input << data << '\n';
+      }
+    });
+    std::thread output_thread([&output]() {
+      std::string data;
+      while (true) {
+        output.getline(data, '\n');
+        std::cout << data << std::endl;
+      }
+    });
+    input_thread.join();
+    output_thread.join();
+    backend_thread.join();
   }
 }

backend/src/main.cpp

@@ -7,27 +7,27 @@
 void test() {
   BlockingStringStream bss;
 
+  std::thread reader([&bss]() {
+    std::string data;
+    for (int i = 1; i <= 5; ++i) {
+      // Use getline with string delimiter
+      bss.getline(data, '\n');
+      std::cerr << "Received: " << data << std::endl;
+    }
+  });
+  std::this_thread::sleep_for(std::chrono::seconds(1));
   std::thread writer([&bss]() {
     for (int i = 1; i <= 5; ++i) {
       bss << "Data " << i << '\n';
       std::this_thread::sleep_for(std::chrono::seconds(1));
     }
   });
-
-  std::thread reader([&bss]() {
-    std::string data;
-    for (int i = 1; i <= 5; ++i) {
-      // Use getline with string delimiter
-      bss.getline(data, '\n');
-      std::cout << "Received: " << data << std::endl;
-    }
-  });
   reader.join();
   writer.join();
 }
 int main(int argc, char **argv) {
-  test();
-  return 0;
+  // test();
+  // return 0;
   bool is_server = false;
   std::string config_dir = "";
   bool custom_config_dir = false;

backend/src/schedule.cpp

@@ -1,2 +1,13 @@
 #include "schedule.h"
-#include "engine.h"
+#include "engine.h"
+
+void BookStoreBackEndClass::Run()
+{
+  std::string request_data;
+  while(true)
+  {
+    input_ptr->getline(request_data, '\n');
+    // std::string response_data = Engine::Process(request_data);
+    // output_ptr << response_data << '\n';
+  }
+}