usbloadergx/source/settings/CGameStatistics.cpp

#include <ogcsys.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "CGameStatistics.h"
#include "FileOperations/fileops.h"
#include "svnrev.h"

#define VALID_CONFIG_REV    1031

CGameStatistics GameStatistics;


CGameStatistics::CGameStatistics()
{
}

CGameStatistics::~CGameStatistics()
{
}

GameStatus * CGameStatistics::GetGameStatus(const char * id) const
{
    if(!id)
        return NULL;

    for(u32 i = 0; i < GameList.size(); ++i)
    {
        if(strncasecmp(id, GameList[i].id, 6) == 0)
        {
            return (GameStatus *) &GameList[i];
        }
    }

    return NULL;
}

bool CGameStatistics::AddGame(const GameStatus & NewGame)
{
    for(u32 i = 0; i < GameList.size(); ++i)
    {
        if(strncasecmp(NewGame.id, GameList[i].id, 6) == 0)
        {
            memcpy(&GameList[i], &NewGame, sizeof(GameStatus));
            return true;
        }
    }

    GameList.push_back(NewGame);

    return true;
}

bool CGameStatistics::RemoveAll()
{
    GameList.clear();
    std::vector<GameStatus>().swap(GameList);

    return Save();
}

bool CGameStatistics::Remove(const char * id)
{
    if(!id)
        return false;

    for(u32 i = 0; i < GameList.size(); ++i)
    {
        if(strncasecmp(id, GameList[i].id, 6) == 0)
        {
            GameList.erase(GameList.begin()+i);
            break;
        }
    }

    return true;
}

bool CGameStatistics::Load(const char * path)
{
    char line[1024];
    char filepath[300];
    snprintf(filepath, sizeof(filepath), "%sGXGameStatistics.cfg", path);

    ConfigPath = filepath;

    FILE *file = fopen(filepath, "r");
    if (!file) return false;

    if(!ValidVersion(file))
    {
        fclose(file);
        return false;
    }

    while (fgets(line, sizeof(line), file))
    {
        if (line[0] == '#')
            continue;

        this->ParseLine(line);
    }
    fclose(file);

    return true;
}

bool CGameStatistics::ValidVersion(FILE * file)
{
    if(!file) return false;

    char line[255];
    int revision = 0;

    while (fgets(line, sizeof(line), file))
    {
        const char * ptr = strcasestr(line, "USB Loader GX R");
        if(ptr)
        {
            ptr += strlen("USB Loader GX R");
            revision = atoi(ptr);
            break;
        }
    }

    rewind(file);

    return revision >= VALID_CONFIG_REV;
}

bool CGameStatistics::Save()
{
    char filepath[300];
    strcpy(filepath, ConfigPath.c_str());

    char * ptr = strrchr(filepath, '/');
    if(ptr)
        ptr[0] = 0;

    if(!CreateSubfolder(filepath))
        return false;

    FILE * f = fopen(ConfigPath.c_str(), "w");
    if (!f) return false;

    fprintf(f, "# USB Loader GX R%s - Game statistics file\n", GetRev());
    fprintf(f, "# note: this file is automatically generated\n");
    fprintf(f, "# Num Games: %d\n", GameList.size());
    for (u32 i = 0; i < GameList.size(); i++)
    {
        fprintf(f, "game:%s = ", GameList[i].id);
        fprintf(f, "FavoriteRank:%d; ", GameList[i].FavoriteRank);
        fprintf(f, "PlayCount:%d;\n", GameList[i].PlayCount);
    }
    fprintf(f, "# END\n");
    fclose(f);

    return true;
}

bool CGameStatistics::SetSetting(GameStatus & game, char *name, char *value)
{
    int i = 0;

    if(strcmp(name, "FavoriteRank") == 0)
    {
        if (sscanf(value, "%d", &i) == 1)
        {
            game.FavoriteRank = i;
        }
        return true;
    }
    else if(strcmp(name, "PlayCount") == 0)
    {
        if (sscanf(value, "%d", &i) == 1)
        {
            game.PlayCount = i;
        }
        return true;
    }

    return false;
}

bool CGameStatistics::ReadGameID(const char * src, char * GameID, int size)
{
    if(strncasecmp(src, "game:", 5) != 0)
        return false;

    char * ptr = strchr(src, ':');
    if(!ptr)
        return false;

    ptr++;

    int i = 0;

    for(i = 0; i < size; i++, ptr++)
    {
        if(*ptr == ' ' || *ptr == '\0')
            break;

        GameID[i] = *ptr;
    }

    GameID[i] = 0;

    return true;
}

void CGameStatistics::ParseLine(char *line)
{
    char name[1024], value[1024];
    char GameID[8];

    if(!ReadGameID(line, GameID, 6))
        return;

    if(strlen(GameID) != 6)
        return;

    GameStatus NewGame;
    memset(&NewGame, 0, sizeof(GameStatus));

    snprintf(NewGame.id, sizeof(NewGame.id), GameID);

    char * LinePtr = strchr(line, '=');

    while(LinePtr != NULL)
    {
        LinePtr++;

        char * eq = strchr(LinePtr, ':');

        if (!eq) break;

        this->TrimLine(name, LinePtr, sizeof(name));
        this->TrimLine(value, eq + 1, sizeof(value));

        SetSetting(NewGame, name, value);

        LinePtr = strchr(LinePtr, ';');
    }

    AddGame(NewGame);
}

void CGameStatistics::TrimLine(char *dest, const char *src, int size)
{
    while (*src == ' ')
        src++;

    int i = 0;

    for(i = 0; i < size; i++, src++)
    {
        if(*src == ';' || *src == ':' || *src == '\n' ||
           *src == '\r' || *src == '\0')
            break;

        dest[i] = *src;
    }

    dest[i] = '\0';
}

void CGameStatistics::SetPlayCount(const char * id, int count)
{
    if(!id)
        return;

    GameStatus NewStatus;
    snprintf(NewStatus.id, sizeof(NewStatus.id), id);
    NewStatus.FavoriteRank = 0;
    NewStatus.PlayCount = count;

    GameStatus * game = GetGameStatus(id);
    if(game)
    {
        NewStatus.FavoriteRank = game->FavoriteRank;
    }

    AddGame(NewStatus);
}

void CGameStatistics::SetFavoriteRank(const char * id, int rank)
{
    if(!id)
        return;

    GameStatus NewStatus;
    snprintf(NewStatus.id, sizeof(NewStatus.id), id);
    NewStatus.FavoriteRank = rank;
    NewStatus.PlayCount = 0;

    GameStatus * game = GetGameStatus(id);
    if(game)
    {
        NewStatus.PlayCount = game->PlayCount;
    }

    AddGame(NewStatus);
}

int CGameStatistics::GetPlayCount(const char * id) const
{
    if(!id)
        return 0;

    GameStatus * game = GetGameStatus(id);
    if(game)
        return game->PlayCount;

    return 0;
}

int CGameStatistics::GetFavoriteRank(const char * id) const
{
    if(!id)
        return 0;

    GameStatus * game = GetGameStatus(id);
    if(game)
        return game->FavoriteRank;

    return 0;
}