source: AE/Installer/trunk/source/subs.cpp@ 297

/*
AE\Mod Installer.

Needs getPackages() now!
*/

#include <string>
//#include <string.h>
#include <cctype>
#include <iostream>
#include "methods.h"
#include <vector>
#include <fstream>

#include <errno.h>
#ifdef WIN32
#include "Include\dirent.h"
#else
#include <dirent.h> //??? is this included for Macs?
#endif
#include <stdio.h>
#include <stdlib.h>


using namespace std;
bool FALSE = 0;
bool TRUE = 0;


int main(void)
{

        //      SetConsoleTitle("AE Installer"); windows junk, convert to SDL
        //      system("color 0A"); 

        cout << "\nWelcome to the AE installer!\n";

        cout << "\nWhat would you like to do?\n";

        return mainMenu();
}

vector<ModPackage> getPackages(void) {
        vector<ModPackage> packages;
        packages.reserve(256); //thats 63 or 64 pointers to packages...i think. :P Reserving this improves performance when we add new pointers

        fstream file;

#ifdef WIN32
        string path = "K:\\Oni\\edition\\install\\packages"; //only for my build. :P
#else
        string path = "K:\\Oni\\edition\\install\\packages"; //change this, 'scen.
#endif

        string filename = "\0";
        string MODINFO_CFG = "\\Mod_Info.cfg";



        DIR *pdir;
        struct dirent *pent;

        pdir = opendir( path.c_str() ); //"." refers to the current dir
        if (!pdir){
                printf ("opendir() failure; terminating");
                exit(1);
        }
        errno=0; 

        while (( pent = readdir(pdir) )){

                filename = path + '\\' + pent->d_name + MODINFO_CFG;
                file.open(filename.c_str());

                //cout << filename << "\n";

                if(!file.fail() )
                {
                        //file.open(filename.c_str(), fstream::out);

                        //do stuff like adding to vector :P

                        //would prefer to push a pointer to a package, but this will do for now
                        packages.push_back( fileToModPackage(file) );

                }       
                file.close();
                file.clear();

        }


        if (errno){
                printf ("readdir() failure; terminating");
                exit(1);
        }
        closedir(pdir);


        return packages;
}

ModPackage fileToModPackage(fstream &file) {
        /*
                This converts a file to a ModPackage struct.

                A few notes...
                        "iter" is the current word we are on. I should have named it "token" or something, but I don't have multiple iterators, so its ok.
                        I refer to (*iter) at the beginning of each if statement block. I could probably store it as a variable, but I'm pretty sure that dereferencing a pointer\iterator isn't much slower than reading a variable.
        */
        ModPackage package;
        string line;
        static string NameOfMod = "NameOfMod";  //used for comparing to the current token...
        static string SLASHSLASH = "//";                //I could have done it in reverse (*iter).compare("ModString") or  
        static string ARROW = "->";                             //did something like "ModString".compare(*iter), and it would have been
        static string ModString = "ModString";  //functionably the same. 
        static string HasOnis = "HasOnis";
        static string HasDeltas = "HasDeltas";
        static string HasBSL = "HasBSL";
        static string HasDats = "HasDats";
        static string IsEngine = "IsEngine";
        static string Readme = "Readme";
        static string GlobalNeeded = "GlobalNeeded";
        static string Category = "Category";
        static string Creator = "Creator";
        while (! file.eof() )
        {
                getline (file,line);
                vector<string> tokens; 
                vector<string>::iterator iter;
                Tokenize(line, tokens);                                 //string to vector of "words"
                if (tokens.capacity() >= 2) {                   //make sure they are using enough stuff
                        iter = tokens.begin();                          //what word we are on, starts at first word
                        /*
                        if (!AEInstallVersion.compare(*iter))
                        If mod is too old, skip this mod.
                        */
                        /*else*/if (!NameOfMod.compare(*iter))  {       //if it contains the name
                                for ( ; iter !=tokens.end() && SLASHSLASH.compare(*iter); iter++) {     //interates through the words, ends if it reaches the end of the line or a "//" comment
                                        if (ARROW.compare(*iter) && NameOfMod.compare(*iter)) {                 //ignores "->" and "NameOfMod"
                                                //cout << *iter; 
                                                //cout << " ";
                                                package.name += *iter + " ";
                                        }
                                }
                                
                        }
                        else if (!ModString.compare(*iter)) {
                                iter++; iter++;
                                package.modStringName = *iter;
                                iter++;
                                package.modStringVersion = atoi((*iter).c_str());
                        }
                        else if (!HasOnis.compare(*iter)) {
                                iter++; iter++;  
                                if (toupper((*iter)[0]) + toupper((*iter)[1]) + toupper((*iter)[2]) == 'Y' + 'E' + 'S') package.hasOnis = 1; //Gotta love c++'s lack of a standard case-insensitive string comparer...I know my implementation here sucks. I need to change it to check each character one by one. At the moment, using "YFR" would probably set it off. :<
                        }
                        else if (!HasBSL.compare(*iter)) {
                                iter++; iter++;  
                                if (toupper((*iter)[0]) + toupper((*iter)[1]) + toupper((*iter)[2]) == 'Y' + 'E' + 'S') package.hasBSL = 1;
                        }
                        else if (!HasDeltas.compare(*iter)) {
                                iter++; iter++;  
                                if (toupper((*iter)[0]) + toupper((*iter)[1]) + toupper((*iter)[2]) == 'Y' + 'E' + 'S') package.hasDeltas = 1;
                        }
                        else if (!HasDats.compare(*iter)) {
                                iter++; iter++;  
                                if (toupper((*iter)[0]) + toupper((*iter)[1]) + toupper((*iter)[2]) == 'Y' + 'E' + 'S') package.hasDats = 1;
                        }
                        else if (!IsEngine.compare(*iter)) {
                                iter++; iter++;  
                                if (toupper((*iter)[0]) + toupper((*iter)[1]) + toupper((*iter)[2]) == 'Y' + 'E' + 'S') package.isEngine = 1;
                        }
                        else if (!GlobalNeeded.compare(*iter)) {
                                iter++; iter++;  
                                if (toupper((*iter)[0]) + toupper((*iter)[1]) + toupper((*iter)[2]) == 'Y' + 'E' + 'S') package.globalNeeded = 1;
                                else if (toupper((*iter)[0]) + toupper((*iter)[1]) == 'N' + 'O') package.globalNeeded = 1; //Really the only place where checking for "No" is important atm.
                        }
                        else if (!Category.compare(*iter))  {   
                                for ( ; iter !=tokens.end() && SLASHSLASH.compare(*iter); iter++) {     //interates through the words, ends if it reaches the end of the line or a "//" comment
                                        if (ARROW.compare(*iter) && Category.compare(*iter)) {                  //ignores "->" and "Category"
                                                //cout << *iter; 
                                                //cout << " ";
                                                package.category += *iter + " ";
                                        }
                                }
                        }
                        else if (!Creator.compare(*iter))  {    //if it contains the name
                                for ( ; iter !=tokens.end() && SLASHSLASH.compare(*iter); iter++) {     //interates through the words, ends if it reaches the end of the line or a "//" comment
                                        if (ARROW.compare(*iter) && Creator.compare(*iter)) {                   //ignores "->" and "Category"
                                                //cout << *iter; 
                                                //cout << " ";
                                                package.creator += *iter + " ";
                                        }
                                }
                        }
                        else if (!Readme.compare(*iter))  {     //if it contains the name
                                for ( ; iter !=tokens.end() && SLASHSLASH.compare(*iter); iter++) {     //interates through the words, ends if it reaches the end of the line or a "//" comment
                                        if (ARROW.compare(*iter) && Readme.compare(*iter)) {                    //ignores "->" and "Category"
                                                //cout << *iter; 
                                                //cout << " ";
                                                package.readme += *iter + " ";
                                        }
                                }
                        }
                }

        }
        package.doOutput();
        return package;
}

int mainMenu(void) {
        int choice = '0';
        bool ok = FALSE;
        cout << "1. Install new packages\n";
        cout << "2. Uninstall packages\n";
        cout << "3. See what is installed\n";
        cout << "4. About AE\n";
        cout << "5. Quit\n\n";

        do {
                ok = TRUE;
                choice = cin.get();
                cin.ignore(1);
                switch(choice) {
                        case '1':
                                installPackages();
                                break;
                        case '2':
                                uninstallPackages();
                                break;
                        case '3':
                                //listInstalledPackages();
                                break;
                        case '5':
                                return 0;
                        default:
                                ok = FALSE;
                }
        } while(ok == FALSE);
        return 0;
}


void installPackages() {
        ModPackage package;
        vector<string> installed_packages;
        vector<ModPackage> packages; // = getPackages()
        vector<ModPackage>::iterator iter;
        iter = packages.begin();

        getPackages();

        if (packages.empty()) {
                cout << "Error: You have no packages!\n";
                return;
        }

        cout << "Detecting installed packages...\n";

        for(int i = 0; i < packages.size();) {
                package = *iter;
                if(!package.isInstalled){
                        packages.erase(iter);
                }
                else { 
                        i++;
                        iter++;
                }

        }

        if (packages.empty()) {
                cout << "Error: You have no installed packages!\n";
                return;
        }

        //listInstalledPackages(packages);

}
void uninstallPackages() {
        ;
}

void getInstalledPackages() {
        ;
}