From a6b29c04a429db83d2381ec9934df088858aeda4 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@gmail.com>
Date: Tue, 8 Dec 2020 16:22:18 +0100
Subject: [PATCH] Started working on settings.

---
 .gitignore            |  2 ++
 core/application.cpp  |  3 +++
 core/application.h    |  1 +
 core/settings.cpp     | 45 +++++++++++++++++++++++++++++++++++++++++++
 core/settings.h       | 16 ++++++++++++++-
 main.cpp              | 41 ++++++++++++++++++++++++++++++++++-----
 settings.json.example | 13 +++++++++++++
 7 files changed, 115 insertions(+), 6 deletions(-)
 create mode 100644 settings.json.example

diff --git a/.gitignore b/.gitignore
index 691f43d..fc698b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,5 @@ bin/**
 *.o
 *.a
 *.pyc
+
+settings.json
diff --git a/core/application.cpp b/core/application.cpp
index e949917..40886aa 100644
--- a/core/application.cpp
+++ b/core/application.cpp
@@ -12,6 +12,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+void Application::load_settings() {
+}
+
 void Application::setup_routes() {
 	default_error_handler_func = Application::default_fallback_error_handler;
 
diff --git a/core/application.h b/core/application.h
index 5342d2f..9374eaf 100644
--- a/core/application.h
+++ b/core/application.h
@@ -23,6 +23,7 @@ public:
 	static void default_fallback_error_handler(int error_code, Request *request);
 	static void default_404_error_handler(int error_code, Request *request);
 
+	virtual void load_settings();
 	virtual void setup_routes();
 	virtual void setup_middleware();
 
diff --git a/core/settings.cpp b/core/settings.cpp
index 6816e88..c262d54 100644
--- a/core/settings.cpp
+++ b/core/settings.cpp
@@ -1,2 +1,47 @@
 #include "settings.h"
 
+#include <stdio.h>
+#include <stdlib.h>
+
+void Settings::parse_file(const std::string &path) {
+	FILE *f = fopen(path.c_str(), "r");
+
+	if (!f) {
+		printf("Settings::parse_file: Error opening file!");
+		return;
+	}
+
+	fseek(f, 0, SEEK_END);
+	long fsize = ftell(f);
+	fseek(f, 0, SEEK_SET); /* same as rewind(f); */
+
+	std::string config_str;
+	config_str.resize(fsize);
+
+	fread(&config_str[0], 1, fsize, f);
+	fclose(f);
+
+	settings.Parse(config_str.c_str());
+}
+
+Settings *Settings::get_singleton() {
+	return _singleton;
+}
+
+Settings::Settings(const bool singleton) {
+	if (singleton) {
+		if (_singleton) {
+			printf("Settings singleton overridden!\n");
+		}
+
+		_singleton = this;
+	}
+}
+
+Settings::~Settings() {
+	if (_singleton == this) {
+		_singleton = nullptr;
+	}
+}
+
+Settings *Settings::_singleton = nullptr;
\ No newline at end of file
diff --git a/core/settings.h b/core/settings.h
index fd105b9..e941119 100644
--- a/core/settings.h
+++ b/core/settings.h
@@ -1,9 +1,23 @@
 #ifndef SETTINGS_H
 #define SETTINGS_H
 
+#include <string>
+
+#include "rapidjson/document.h"
+
 class Settings {
     public:
-    int i;
+    rapidjson::Document settings;
+
+    void parse_file(const std::string &path);
+
+    static Settings *get_singleton();
+
+    Settings(const bool singleton = false);
+    virtual ~Settings();
+
+protected:
+    static Settings *_singleton;
 };
 
 
diff --git a/main.cpp b/main.cpp
index 25c72e0..d9b52a7 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,6 @@
+#include <string.h>
 #include <iostream>
 #include <string>
-#include <string.h>
 
 #include "core/application.h"
 #include "core/file_cache.h"
@@ -12,8 +12,36 @@
 
 #include "database/db_init.h"
 
+#include "core/settings.h"
+
 #define MAIN_CLASS RDNApplication
 
+void create_databases() {
+
+	Settings *settings = Settings::get_singleton();
+
+	if (!settings) {
+		printf("create_databases: Settings singleton is null!");
+		return;
+	}
+
+/*
+	rapidjson::Value dbs = settings->settings["databases"];
+
+	if (!dbs.IsArray()) {
+		printf("create_databases: dbs !dbs.IsArray()!");
+		return;
+	}
+*/
+
+	DatabaseManager *dbm = DatabaseManager::get_singleton();
+
+	uint32_t index = dbm->create_database("mysql");
+	Database *db = dbm->databases[0];
+	//db->_builder_creation_func = MysqlQueryBuilder::create;
+	db->connect("");
+}
+
 int main(int argc, char **argv) {
 	bool migrate = false;
 
@@ -27,19 +55,21 @@ int main(int argc, char **argv) {
 
 	initialize_database_backends();
 
+	Settings *settings = new Settings(true);
+
+	settings->parse_file("settings.json");
+
 	FileCache *file_cache = new FileCache(true);
 	file_cache->wwwroot = "./www";
 	file_cache->wwwroot_refresh_cache();
 
 	DatabaseManager *dbm = new DatabaseManager();
-	uint32_t index = dbm->create_database("mysql");
 
-	Database *db = dbm->databases[0];
-	//db->_builder_creation_func = MysqlQueryBuilder::create;
-	db->connect("");
+	create_databases();
 
 	Application *app = new MAIN_CLASS();
 
+	app->load_settings();
 	app->setup_routes();
 	app->setup_middleware();
 
@@ -59,6 +89,7 @@ int main(int argc, char **argv) {
 	delete app;
 	delete dbm;
 	delete file_cache;
+	delete settings;
 
 	return 0;
 }
\ No newline at end of file
diff --git a/settings.json.example b/settings.json.example
new file mode 100644
index 0000000..4a9ab45
--- /dev/null
+++ b/settings.json.example
@@ -0,0 +1,13 @@
+{
+    "databases": {
+        "0" : {
+            "type": "mysql",
+            "host": "127.0.0.1",
+            "user": "",
+            "password": "",
+            "dbname": "testappdb",
+            "port": "3306"
+        }
+    }
+}
+  
\ No newline at end of file