From a4229edd6fdba03785f9b7542f731498a2680dc1 Mon Sep 17 00:00:00 2001
From: Timofey <timosha1113@yandex.ru>
Date: Wed, 10 Aug 2022 21:52:07 +0300
Subject: [PATCH] Add read project lists

---
 src/clippy/clippy.cpp       | 29 +++++++++++++++++--
 src/clippy/clippy.hpp       |  9 +++++-
 src/clippy/project_list.cpp | 57 +++++++++++++++++++++++++++++++++++++
 src/clippy/project_list.hpp | 27 ++++++++++++++++++
 4 files changed, 118 insertions(+), 4 deletions(-)
 create mode 100644 src/clippy/project_list.cpp
 create mode 100644 src/clippy/project_list.hpp

diff --git a/src/clippy/clippy.cpp b/src/clippy/clippy.cpp
index c17e7d4..6854848 100644
--- a/src/clippy/clippy.cpp
+++ b/src/clippy/clippy.cpp
@@ -1,16 +1,25 @@
 #include <clippy/clippy.hpp>
+#include <clippy/target.hpp>
 
 #include <utils/parametres.hpp>
 
 #include <iostream>
+#include <memory>
 #include <vector>
+#include <filesystem>
 
 void Clippy::Run(const std::vector<std::string>& args) {
-  TryExecuteClippyCommand(args);
+  auto result = TryExecuteClippyCommand(args);
+  if (result) {
+    result->Execute();
+    return;
+  }
 }
 
-bool Clippy::TryExecuteClippyCommand(const std::vector<std::string>& args) {
+Clippy::TargetPtr Clippy::TryExecuteClippyCommand(
+    const std::vector<std::string>& args) {
   using namespace utils::parametres;
+  using namespace clippy::targets;
   if (CheckPatternParametres(args, Parameter::Skip, "help",
                              Parameter::Anything)) {
     std::cout << "Hello I'm clippy" << std::endl;
@@ -19,7 +28,21 @@ bool Clippy::TryExecuteClippyCommand(const std::vector<std::string>& args) {
       std::cout << args[i] << (i + 1 == args.size() ? "" : ",") << " ";
     }
     std::cout << "}" << std::endl;
+
+    return std::make_unique<EmptyTarget>();
   }
 
-  return false;
+  if (CheckPatternParametres(args, Parameter::Skip, "cfg",
+                             Parameter::Anything)) {
+    projects_.LoadFrom("test");
+    auto p = projects_.GetCurrentProject();
+
+    if (p.has_value()) {
+      return std::make_unique<OpenProjectConfig>(p.value().configuration_file);
+    } else {
+      return std::make_unique<CreateProjectConfig>(projects_);
+    }
+  }
+
+  return nullptr;
 }
diff --git a/src/clippy/clippy.hpp b/src/clippy/clippy.hpp
index a074c29..a944267 100644
--- a/src/clippy/clippy.hpp
+++ b/src/clippy/clippy.hpp
@@ -1,12 +1,19 @@
 #pragma once
 
+#include <clippy/project_list.hpp>
+#include <clippy/target.hpp>
+
 #include <vector>
 #include <string>
+#include <memory>
 
 class Clippy {
  public:
   void Run(const std::vector<std::string>& args);
 
+  using TargetPtr = std::unique_ptr<clippy::targets::Target>;
  private:
-  bool TryExecuteClippyCommand(const std::vector<std::string>& args);
+  TargetPtr TryExecuteClippyCommand(const std::vector<std::string>& args);
+
+  ProjectList projects_;
 };
diff --git a/src/clippy/project_list.cpp b/src/clippy/project_list.cpp
new file mode 100644
index 0000000..7b29f75
--- /dev/null
+++ b/src/clippy/project_list.cpp
@@ -0,0 +1,57 @@
+#include <clippy/project_list.hpp>
+#include <filesystem>
+#include <utils/lock_file.hpp>
+
+#include <fstream>
+#include <mutex>
+
+
+
+
+
+
+#include <iostream>
+
+void ProjectList::LoadFrom(const std::string& path) {
+  utils::filesystem::LockFile lock(path);
+  std::lock_guard guard(lock);
+
+  std::ifstream in(path);
+
+  Project current;
+
+  while (in >> current.root_project >> current.configuration_file) {
+    projects_.push_back(current);
+  }
+}
+
+std::optional<Project> ProjectList::GetCurrentProject() {
+  auto current_path = std::filesystem::current_path();
+
+  std::optional<Project> result;
+  auto UpdateResult = [&result](Project p) {
+    if (!result.has_value()) {
+      result = p;
+    } else {
+      result = std::max(p, result.value());
+    }
+  };
+
+  for (auto& project : projects_) {
+    auto prefix_current_path = current_path;
+
+    if (project.root_project == "/") {
+      UpdateResult(project);
+      continue;
+    }
+
+    while (prefix_current_path != "/") {
+      if (prefix_current_path == project.root_project) {
+        UpdateResult(project);
+      }
+      prefix_current_path = prefix_current_path.parent_path();
+    }
+  }
+
+  return result;
+}
diff --git a/src/clippy/project_list.hpp b/src/clippy/project_list.hpp
new file mode 100644
index 0000000..be5d369
--- /dev/null
+++ b/src/clippy/project_list.hpp
@@ -0,0 +1,27 @@
+#pragma once
+#include <clippy/config.hpp>
+
+#include <vector>
+#include <filesystem>
+#include <optional>
+
+struct Project {
+  std::strong_ordering operator<=>(const Project&) const = default;
+
+  std::filesystem::path root_project;
+  std::filesystem::path configuration_file;
+};
+
+class ProjectList {
+ public:
+  ProjectList() {}
+
+  void LoadFrom(const std::string& path);
+
+  const std::vector<Project>& GetProjects() const { return projects_; }
+
+  std::optional<Project> GetCurrentProject();
+
+ private:
+  std::vector<Project> projects_;
+};