flat database the RECKONING

server/src/db/database.cpp

@@ -32,6 +32,10 @@ void sosc::db::close_databases() {
     _ctx.ready = false;
 }
 
+// ************ //
+//  QUERY CODE  //
+// ************ //
+
 sosc::db::Query::Query() : results(this) {
     this->open = false;
 }
@@ -47,8 +51,9 @@ void sosc::db::Query::SetQuery(const std::string &query, int db) {
     if(!this->open)
         this->Close();
 
+    this->database = db == DB_USE_MEMORY ? _ctx.mem_db : _ctx.hard_db;
     int status = sqlite3_prepare_v2(
-        db == DB_USE_MEMORY ? _ctx.mem_db : _ctx.hard_db,
+        this->database,
         query.c_str(),
         query.length() + 1,
         &this->statement,
@@ -63,5 +68,127 @@ void sosc::db::Query::NonQuery() {
     if(!_ctx.ready || !this->open)
         return;
 
+    this->results.Step();
+}
 
+double sosc::db::Query::Scalar<double>() {
+    if(!_ctx.ready || !this->open)
+        return 0;
+
+    if(this->results.Step())
+        return this->results.Get<double>(0);
+    else
+        return 0;
+}
+
+int32_t sosc::db::Query::Scalar<int32_t>() {
+    if(!_ctx.ready || !this->open)
+        return 0;
+
+    if(this->results.Step())
+        return this->results.Get<int32_t>(0);
+    else
+        return 0;
+}
+
+int64_t sosc::db::Query::Scalar<int64_t>() {
+    if(!_ctx.ready || !this->open)
+        return 0;
+
+    if(this->results.Step())
+        return this->results.Get<int64_t>(0);
+    else
+        return 0;
+}
+
+sosc::time sosc::db::Query::Scalar<sosc::time>() {
+    if(!_ctx.ready || !this->open)
+        return sosc::time::min();
+
+    if(this->results.Step())
+        return this->results.Get<sosc::time>(0);
+    else
+        return sosc::time::min();
+}
+
+std::string sosc::db::Query::Scalar<std::string>(int type) {
+    if(!_ctx.ready || !this->open)
+        return "";
+
+    if(this->results.Step())
+        return this->results.Get<std::string>(0, type);
+    else
+        return "";
+}
+
+sosc::db::ResultSet* sosc::db::Query::GetResults() const {
+    return &this->results;
+}
+
+void sosc::db::Query::Reset(bool clearBinds) {
+    if(clearBinds)
+        sqlite3_clear_bindings(this->statement);
+
+    sqlite3_reset(this->statement);
+}
+
+void sosc::db::Query::Close() {
+    sqlite3_finalize(this->statement);
+    this->open = false;
+}
+
+// ***************** //
+//  RESULT SET CODE  //
+// ***************** //
+
+sosc::db::ResultSet::ResultSet(sosc::db::Query *query) {
+    this->query = query;
+}
+
+bool sosc::db::ResultSet::IsOpen() const {
+    return this->query->IsOpen();
+}
+
+bool sosc::db::ResultSet::Step() {
+    int result = sqlite3_step(this->query->statement);
+
+    if(result == SQLITE_ROW)
+        return true;
+    else if(result == SQLITE_DONE)
+        return false;
+    else
+        throw std::string(sqlite3_errmsg(this->query->database));
+}
+
+double sosc::db::ResultSet::Get<double>(int column) {
+    return sqlite3_column_double(this->query->statement, column);
+}
+
+int32_t sosc::db::ResultSet::Get<int32_t>(int column) {
+    return sqlite3_column_int(this->query->statement, column);
+}
+
+int64_t sosc::db::ResultSet::Get<int64_t>(int column) {
+    return sqlite3_column_int64(this->query->statement, column);
+}
+
+sosc::time sosc::db::ResultSet::Get<sosc::time>(int column) {
+    return clk::from_unix_time(
+        sqlite3_column_int64(this->query->statement, column)
+    );
+}
+
+std::string sosc::db::ResultSet::Get<std::string>(int column, int type) {
+    auto data = (const char*)
+        (type == DB_COL_TEXT
+            ? sqlite3_column_text(this->query->statement, column)
+            : sqlite3_column_blob(this->query->statement, column));
+
+    return std::string(
+        data, sqlite3_column_bytes(this->query->statement, column)
+    );
+}
+
+int sosc::db::ResultSet::ColumnCount() {
+    return sqlite3_column_count(this->query->statement);
 }

server/src/db/database.hpp

@@ -19,17 +19,17 @@ class Query;
 class ResultSet {
 public:
     bool IsOpen() const;
-    bool IsReadable() const;
     bool Step();
 
     template<typename T>
     T Get(int column);
     template<typename T>
     T Get(int column, int type);
+
+    int ColumnCount();
 private:
     ResultSet(Query* query);
     Query* query;
-    bool readable;
 
     friend class Query;
 };
@@ -58,14 +58,15 @@ public:
         return this->open;
     }
 
-    void Reset();
+    void Reset(bool clearBinds = true);
     void Close();
 private:
     ResultSet results;
     sqlite3_stmt* statement;
-
+    sqlite3* database;
-    std::string query;
     bool open;
+
+    friend class ResultSet;
 };
 
 /*double Query::Scalar<double>();

server/src/utils/time.cpp

@@ -1,5 +1,17 @@
 #include "time.hpp"
 
+sosc::time sosc::clk::from_unix_time(uint64_t unix) {
+    std::tm raw = std::tm();
+    raw.tm_year = 70;
+    raw.tm_yday = 0;
+    raw.tm_hour = 0;
+    raw.tm_min = 0;
+    raw.tm_sec = 0;
+
+    return sosc::clock::from_time_t(std::mktime(&raw))
+         + std::chrono::seconds(unix);
+}
+
 std::tm sosc::clk::to_utc(sosc::time time) {
     time_t ctime = sosc::clock::to_time_t(time);
     return to_utc(&ctime);

server/src/utils/time.hpp

@@ -14,6 +14,8 @@ typedef std::chrono::system_clock clock;
 typedef std::chrono::time_point<sosc::clock> time;
 
 namespace clk {
+sosc::time from_unix_time(uint64_t unix);
+
 std::tm to_utc(sosc::time time);
 std::tm to_utc(const time_t* time);