Refactor timer code

No need to copy-paste that much stuff, especially since
there are going to be more timer types in the future.

src/meson.build

@@ -50,6 +50,7 @@ executable(meson.project_name(),
   'eventia/timer.cpp',
   'timer_items.cpp',
   'timer_icons.cpp',
+  'timer_base.cpp',
   'oro/originsdb.cpp',
   'gnulib/lib/base64.c',
   'base64.cpp',

src/timer_base.cpp

@@ -0,0 +1,42 @@
+#include "timer_base.hpp"
+#include "roar11/ThreadPool.hpp"
+#include <cassert>
+
+namespace duck {
+
+TimerBase::TimerBase (
+	const eve::Context& ctx,
+	double timeout,
+	roar11::ThreadPool* pool,
+	oro::Api* oro_api,
+	oro::OriginsDB* db
+) :
+	eve::Timer(timeout, ctx),
+	m_pool(pool),
+	m_oro_api(oro_api),
+	m_db(db)
+{
+	assert(m_pool);
+	assert(m_oro_api);
+}
+
+void TimerBase::on_timer() {
+	m_pool->submit(&TimerBase::fetch_data, this);
+}
+
+roar11::ThreadPool& TimerBase::pool() {
+	assert(m_pool);
+	return *m_pool;
+}
+
+oro::Api& TimerBase::oro_api() {
+	assert(m_oro_api);
+	return *m_oro_api;
+}
+
+oro::OriginsDB& TimerBase::db() {
+	assert(m_db);
+	return *m_db;
+}
+
+} //namespace duck

src/timer_base.hpp

@@ -0,0 +1,43 @@
+#pragma once
+
+#include "eventia/private/context.hpp"
+#include "eventia/timer.hpp"
+
+namespace roar11 {
+	class ThreadPool;
+} //namespace roar11
+
+namespace oro {
+	class Api;
+	class OriginsDB;
+} //namespace oro
+
+namespace duck {
+
+class TimerBase : public eve::Timer {
+public:
+	TimerBase (
+		const eve::Context& ctx,
+		double timeout,
+		roar11::ThreadPool* pool,
+		oro::Api* oro_api,
+		oro::OriginsDB* db
+	);
+	virtual ~TimerBase() noexcept = default;
+
+	virtual void on_timer() override;
+
+protected:
+	roar11::ThreadPool& pool();
+	oro::Api& oro_api();
+	oro::OriginsDB& db();
+
+private:
+	virtual void fetch_data() = 0;
+
+	roar11::ThreadPool* m_pool;
+	oro::Api* m_oro_api;
+	oro::OriginsDB* m_db;
+};
+
+} //namespace duck

src/timer_icons.cpp

@@ -1,9 +1,6 @@
 #include "timer_icons.hpp"
 #include "oro/originsdb.hpp"
 #include "oro/api.hpp"
-#include "eventia/private/context.hpp"
-#include "roar11/ThreadPool.hpp"
-#include <cassert>
 #include <iostream>
 
 namespace duck {
@@ -14,21 +11,12 @@ namespace duck {
 		oro::Api* oro_api,
 		oro::OriginsDB* db
 	) :
-		eve::Timer(timeout, ctx),
-		m_pool(pool),
-		m_oro_api(oro_api),
-		m_db(db)
+		TimerBase(ctx, timeout, pool, oro_api, db)
 	{
-		assert(m_pool);
-		assert(m_oro_api);
-	}
-
-	void TimerIcons::on_timer() {
-		m_pool->submit(&TimerIcons::fetch_data, this);
 	}
 
 	void TimerIcons::fetch_data() {
-		auto icons = m_oro_api->items_icons();
+		auto icons = oro_api().items_icons();
 
 		{
 			const int next_timer = icons.first.retry_after / icons.first.rate_limit;
@@ -36,7 +24,7 @@ namespace duck {
 			set_timer(static_cast<double>(next_timer));
 		}
 
-		m_db->update(icons.second);
+		db().update(icons.second);
 	}
 
 } //namespace duck

src/timer_icons.hpp

@@ -1,20 +1,10 @@
 #pragma once
 
-#include "eventia/private/context.hpp"
-#include "eventia/timer.hpp"
-
-namespace roar11 {
-	class ThreadPool;
-} //namespace roar11
-
-namespace oro {
-	class Api;
-	class OriginsDB;
-} //namespace oro
+#include "timer_base.hpp"
 
 namespace duck {
 
-class TimerIcons : eve::Timer {
+class TimerIcons : TimerBase {
 public:
 	TimerIcons (
 		const eve::Context& ctx,
@@ -24,14 +14,8 @@ public:
 		oro::OriginsDB* db
 	);
 
-	virtual void on_timer() override;
-
 private:
-	void fetch_data();
-
-	roar11::ThreadPool* m_pool;
-	oro::Api* m_oro_api;
-	oro::OriginsDB* m_db;
+	virtual void fetch_data() override;
 };
 
 } //namespace duck

src/timer_items.cpp

@@ -1,9 +1,6 @@
 #include "timer_items.hpp"
 #include "oro/originsdb.hpp"
 #include "oro/api.hpp"
-#include "eventia/private/context.hpp"
-#include "roar11/ThreadPool.hpp"
-#include <cassert>
 #include <iostream>
 
 namespace duck {
@@ -14,21 +11,12 @@ namespace duck {
 		oro::Api* oro_api,
 		oro::OriginsDB* db
 	) :
-		eve::Timer(timeout, ctx),
-		m_pool(pool),
-		m_oro_api(oro_api),
-		m_db(db)
+		TimerBase(ctx, timeout, pool, oro_api, db)
 	{
-		assert(m_pool);
-		assert(m_oro_api);
-	}
-
-	void TimerItems::on_timer() {
-		m_pool->submit(&TimerItems::fetch_data, this);
 	}
 
 	void TimerItems::fetch_data() {
-		auto items = m_oro_api->items_list();
+		auto items = oro_api().items_list();
 
 		{
 			const int next_timer = items.first.retry_after / items.first.rate_limit;
@@ -36,7 +24,7 @@ namespace duck {
 			set_timer(static_cast<double>(next_timer));
 		}
 
-		m_db->overwrite(items.second);
+		db().overwrite(items.second);
 	}
 
 } //namespace duck

src/timer_items.hpp

@@ -1,20 +1,10 @@
 #pragma once
 
-#include "eventia/private/context.hpp"
-#include "eventia/timer.hpp"
-
-namespace roar11 {
-	class ThreadPool;
-} //namespace roar11
-
-namespace oro {
-	class Api;
-	class OriginsDB;
-} //namespace oro
+#include "timer_base.hpp"
 
 namespace duck {
 
-class TimerItems : eve::Timer {
+class TimerItems : TimerBase {
 public:
 	TimerItems (
 		const eve::Context& ctx,
@@ -24,14 +14,8 @@ public:
 		oro::OriginsDB* db
 	);
 
-	virtual void on_timer() override;
-
 private:
-	void fetch_data();
-
-	roar11::ThreadPool* m_pool;
-	oro::Api* m_oro_api;
-	oro::OriginsDB* m_db;
+	virtual void fetch_data() override;
 };
 
 } //namespace duck