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#pragma once
#include <functional>
#include "simple_settings.h"
//KEEP THIS UP TO DATE!!
enum ConFnVarType_t {
TYPE_NULL = 0,
TYPE_FLOAT = 'F',
TYPE_STRING = 'S',
TYPE_INTEGER = 'D',
TYPE_HEX = 'X'
};
class con_fn_base {
public:
virtual bool execute( const char* str ) = 0;
virtual const char* get_syntax( ) = 0;
virtual hash_t get_hash( ) = 0;
};
class con_fn : public con_fn_base {
public:
con_fn( hash_t hash, std::function< void __cdecl( const char*, const char* ) > function, const char* syntax ) {
m_hash = hash;
m_function = function;
strcpy_s< 64 >( m_syntax, syntax );
for( size_t i{ }; i < strlen( m_syntax ); ++i ) {
if( m_syntax[ i ] == '%' ) {
m_args++;
}
}
}
static ConFnVarType_t get_var_type( size_t arg, const char* syntax ) {
size_t cur_arg = 0;
for( size_t i{ }; i < strlen( syntax ); ++i ) {
if( syntax[ i ] == '%' ) {
if( cur_arg++ == arg ) {
return ( ConFnVarType_t )( syntax[ i + 1 ] );
}
}
}
return TYPE_NULL;
}
template < typename t >
static t get_arg( const char* str, size_t arg_index, const char* syntax ) {
auto arg_type = get_var_type( arg_index, syntax );
size_t cur_arg = 0;
for( size_t i{ }; i < strlen( str ); ++i ) {
if( str[ i ] == ' ' ) {
if( cur_arg++ == arg_index ) {
size_t start = i + 1;
size_t end = strlen( str );
for( size_t i2 = start; i2 < strlen( str ); ++i2 ) {
if( str[ i2 ] == ' ' ) {
end = i2;
break;
}
}
std::string str( str + start, end - start );
char* end_ptr = ( char* )str.c_str( ) + end;
if constexpr( std::is_integral_v< t > ) {
auto radix = get_var_type( arg_index, syntax ) == TYPE_HEX ? 16 : 10;
return std::strtol( str.c_str( ), &end_ptr, radix );
}
if constexpr( std::is_floating_point_v< t > ) {
return std::strtof( str.c_str( ), &end_ptr );
}
return ( t )str.c_str( );
}
}
}
return t{ };
}
virtual const char* get_syntax( ) override {
return m_syntax;
}
virtual hash_t get_hash( ) override {
return m_hash;
}
ConFnVarType_t get_var_type( size_t arg ) {
size_t cur_arg = 0;
for( size_t i{ }; i < strlen( m_syntax ); ++i ) {
if( m_syntax[ i ] == '%' ) {
if( cur_arg++ == arg ) {
return ( ConFnVarType_t )( m_syntax[ i + 1 ] );
}
}
}
return TYPE_NULL;
}
//returns false on failed execution
virtual bool execute( const char* str ) override {
size_t arg_count{ };
for( size_t i{ }; i < strlen( str ); ++i ) {
if( str[ i ] == ' ' ) {
arg_count++;
}
}
if( arg_count != m_args ) {
return false;
}
std::string pass_str( " " );
size_t cur_arg = 0;
for( size_t i{ }; i < strlen( str ); ++i ) {
if( str[ i ] == ' ' ) {
size_t end = strlen( str );
for( size_t i2 = i + 2; i2 < strlen( str ); ++i2 ) {
if( str[ i2 ] == ' ' ) {
end = i2;
}
}
char* end_ptr = ( char* )( str + i + end );
switch( get_var_type( cur_arg ) ) {
case TYPE_FLOAT: {
pass_str += std::to_string( strtof( str + i, &end_ptr ) );
break;
}
case TYPE_INTEGER: {
pass_str += std::to_string( strtol( str + i, &end_ptr, 10 ) );
break;
}
case TYPE_HEX: {
char buf[ 10 ];
sprintf_s< 10 >( buf, "%08x", strtol( str + i, &end_ptr, 16 ) );
pass_str += buf;
break;
}
case TYPE_STRING: {
std::string add_str( str + i, end - i );
pass_str += add_str;
break;
}
default:
return false;
}
if( end != strlen( str ) ) {
pass_str += ' ';
}
++cur_arg;
}
}
m_function( pass_str.c_str( ), m_syntax );
return true;
}
private:
hash_t m_hash{ };
size_t m_args{ };
char m_syntax[ 64 ]{ };
std::function< void( __cdecl )( const char*, const char* ) > m_function{ };
};
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