usbloadergx/source/settings/newtitles.cpp

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

#include "CSettings.h"
#include "settings/CGameStatistics.h"
#include "newtitles.h"

#define NEW_SECONDS 24 * 60 * 60
#define GAMETITLES  "gametitles.txt"

NewTitles *NewTitles::instance = NULL;

NewTitles* NewTitles::Instance()
{
    if (instance == NULL)
    {
        instance = new NewTitles();
    }
    return instance;
}

void NewTitles::DestroyInstance()
{
    if (instance != NULL)
    {
        delete instance;
        instance = NULL;
    }
}

NewTitles::NewTitles()
{
    firstTitle = lastTitle = NULL;
    isDirty = isNewFile = false;

    // Read the text file
    char path[255];
    strcpy(path, Settings.titlestxt_path);
    path[strlen(Settings.titlestxt_path) - 1] = '/';
    strcat(path, GAMETITLES);

    char line[20];
    FILE *fp = fopen(path, "r");
    if (fp != NULL)
    {
        while (fgets(line, sizeof(line), fp))
        {
            // This is one line
            if (line[0] != '#' || line[0] != ';')
            {
                Title *title = new Title();
                if (sscanf(line, "%6c:%ld", (u8 *) &title->titleId, &title->timestamp) == 2)
                {
                    if (firstTitle == NULL)
                    {
                        firstTitle = title;
                        lastTitle = title;
                    }
                    else
                    {
                        lastTitle->next = title;
                        lastTitle = title;
                    }
                }
                else
                {
                    delete title; // Invalid title entry, ignore
                }
            }
        }

        fclose(fp);
    }
    else
    {
        isNewFile = true;
    }
}

NewTitles::~NewTitles()
{
    Save();

    Title *t = firstTitle;
    while (t != NULL)
    {
        Title *temp = (Title *) t->next;
        delete t;
        t = temp;
    }
    firstTitle = lastTitle = NULL;
}

void NewTitles::CheckGame(u8 *titleid)
{
    if (titleid == NULL || strlen((char *) titleid) == 0)
    {
        return;
    }

    Title *t = firstTitle;
    while (t != NULL)
    {
        // Loop all titles, search for the correct titleid
        if (strcmp((const char *) titleid, (const char *) t->titleId) == 0)
        {
            return; // Game found, which is excellent
        }
        t = (Title *) t->next;
    }

    // Not found, add it
    t = new Title();
    strncpy((char *) t->titleId, (char *) titleid, 6);
    t->timestamp = time(NULL);
    if (isNewFile)
    {
        t->timestamp -= (NEW_SECONDS + 1); // Mark all games as not new if this is a new file
    }

    if (firstTitle == NULL)
    {
        firstTitle = t;
        lastTitle = t;
    }
    else
    {
        lastTitle -> next = t;
        lastTitle = t;
    }
    isDirty = true;
}

bool NewTitles::IsNew(u8 *titleid)
{
    if (titleid == NULL || strlen((char *) titleid) == 0) return false;

    Title *t = firstTitle;

    while (t != NULL)
    {
        // Loop all titles, search for the correct titleid
        if (strcmp((const char *) titleid, (const char *) t->titleId) == 0)
        {
            // This title is less than 24 hours old
            if ((time(NULL) - t->timestamp) < NEW_SECONDS)
            {
                // Only count the game as new when it's never been played through GX
                GameStatus *gnum = GameStatistics.GetGameStatus(titleid);
                return gnum == NULL || gnum->PlayCount == 0;
            }
            return false;
        }
        t = (Title *) t->next;
    }
    // We should never get here, since all files should be added by now!
    CheckGame(titleid);

    return !isNewFile; // If this is a new file, return false
}

void NewTitles::Remove(u8 *titleid)
{
    if (titleid == NULL || strlen((char *) titleid) == 0) return;

    Title *t = firstTitle, *prev = NULL;
    while (t != NULL)
    {
        if (strcmp((const char *) titleid, (const char *) t->titleId) == 0)
        {
            if (prev == NULL)
            {
                firstTitle = (Title *) t->next;
            }
            else
            {
                prev->next = t->next;
            }
            delete t;
            isDirty = true;

            return;
        }
        prev = t;
        t = (Title *) t->next;
    }
}

void NewTitles::Save()
{
    if (!isDirty) return;

    char path[255];
    strcpy(path, Settings.titlestxt_path);
    path[strlen(Settings.titlestxt_path) - 1] = '/';
    strcat(path, GAMETITLES);

    FILE *fp = fopen(path, "w");
    if (fp != NULL)
    {
        Title *t = firstTitle;
        while (t != NULL && strlen((char *) t->titleId) > 0)
        {
            fprintf(fp, "%s:%ld\n", t->titleId, t->timestamp);
            t = (Title *) t->next;
        }
        fclose(fp);
    }
}