usbloadergx/source/settings/newtitles.cpp

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

#include "cfg.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
                Game_NUM *gnum = CFG_get_game_num(titleid);
                return gnum == NULL || gnum->count == 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) {
    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);
    }
}