/*
 *  PSX-Tools Bundle Pack
 *  Copyright (C) 2002 Nicolas "Pixel" Noble
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <getopt.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include "cdutils.h"
#include "generic.h"
#include "fileutils.h"

int lga = 0;
struct option long_options[] = {
    {"help",       0, NULL, 'h'},
    {"ppf",        1, NULL, 'p'},
    {"mode",       1, NULL, 'm'},
    {"force",      1, NULL, 'f'},
    {0,            0, NULL,  0 }
};

void showhelp(void) {
    printm(M_BARE,
"Usage:\n"
"cd-tool [-m <mode>] [-p <ppf file>] [-f] <isofile> <command> [command args]\n"
"Where mode can be 1 for MODE 1, 2 for MODE 2, 3 for MODE 2 FORM 1,\n"
"4 for MODE 2 FORM 2 and 5 for autodetect, which is the default behaviour.\n"
"\n"
"Command can be one of:\n"
"   infos                        - dumps a bunch of infos about the iso.\n"
"   path                         - dumps the path table.\n"
"   printdir <path>              - show the directoy listing of <path>\n"
"   extract-file <file> <path>   - extract the file <path> to <file>\n"
"   extract <file> <addr> <size> - extract some sectors to <file>\n"
"   insert-file <file> <path>    - insert the file to <path>\n"
"   insert <file> <addr>         - insert some sectors at <addr>\n"
"\n");
}

int main(int argc, char ** argv) {
    int type = GUESS, c, size, force = 0, sector;
    FILE * iso_r, * iso_w;
    char * ppf = 0, * iso_name = 0, * arg1 = 0, * arg2 = 0, * f;
    
    verbosity = M_WARNING;
    
    while ((c = getopt_long(argc, argv, "Hhm:p:f", long_options, NULL)) != EOF) {
	switch (c) {
	case 'h':
	case 'H':
	case '?':
	    showhelp();
	    exit(0);
	case 'm':
	    type = atoi(optarg);
	    break;
	case 'p':
	    ppf = strdup(optarg);
	    break;
	case 'f':
	    force = 1;
	    break;
	}
    }
    
    if (argc == optind) {
	showhelp();
	printm(M_ERROR, "Need an iso filename to work on.\n");
	exit(-1);
    }
    
    iso_name = argv[optind++];
    
    if (!(iso_r = fopen(iso_name, "r"))) {
	printm(M_ERROR, "Failed to open %s for reading.\n", iso_name);
	exit(-1);
    }
    
    if (argc  == optind) {
	showhelp();
	printm(M_ERROR, "Need a command to execute.\n");
	exit(-1);
    }
    
    get_iso_infos(iso_r);
    
    if (!strcmp(argv[optind], "infos")) {
	show_iso_infos(iso_r);
    } else if (!strcmp(argv[optind], "path")) {
	show_pt_infos(iso_r);
    } else if (!strcmp(argv[optind], "printdir")) {
	struct DirEntry dir;
	optind++;
	if ((argc - 1) != optind) {
	    showhelp();
	    printm(M_ERROR, "printdir needs one argument.\n");
	    exit(-1);
	}
	arg1 = argv[optind];
	dir = find_path(iso_r, f = strdup(arg1));
	free(f);
	if (!dir.R) {
	    printm(M_ERROR, "Path %s was not found on iso.\n", arg1);
	    exit(-1);
	}
	if (!(dir.Flags & 2)) {
	    printm(M_ERROR, "Path %s design a file and not a directory.\n", arg1);
	    exit(-1);
	}
	show_head_entry();
	show_dir(iso_r, &dir);
    } else if (!strcmp(argv[optind], "extract-file")) {
	struct DirEntry dir;
	FILE * file;
	
	optind++;
	if ((argc - 2) != optind) {
	    showhelp();
	    printm(M_ERROR, "extract-file needs two arguments.\n");
	    exit(-1);
	}
	arg1 = argv[optind++];
	arg2 = argv[optind++];
	if (!(file = fopen(arg1, "w"))) {
	    printm(M_ERROR, "Failed to open file %s for writing.\n", arg1);
	    exit(-1);
	}
	dir = find_path(iso_r, f = strdup(arg2));
	free(f);
	if (!dir.R) {
	    printm(M_ERROR, "Path %s was not found on iso.\n", arg2);
	    exit(-1);
	}
	printm(M_STATUS, "Reading path %s to file %s.\n", arg2, arg1);
	read_file(iso_r, file, type, dir.Sector, dir.Size);
    } else if (!strcmp(argv[optind], "extract")) {
	FILE * file;
	
	optind++;
	if ((argc - 3) != optind) {
	    showhelp();
	    printm(M_ERROR, "extract needs three arguments.\n");
	    exit(-1);
	}
	arg1 = argv[optind++];
	size = atoi(argv[optind++]);
	sector = atoi(argv[optind++]);
	if (!(file = fopen(arg1, "w"))) {
	    printm(M_ERROR, "Failed to open file %s for writing.\n", arg1);
	    exit(-1);
	}
	printm(M_STATUS, "Reading %i bytes from sector %i to file %s.\n", size, sector, arg1);
	read_file(iso_r, file, type, sector, size);
    } else if (!strcmp(argv[optind], "insert-file")) {
	struct DirEntry dir, * d;
	unsigned char * buffer;
	FILE * file;
	int old_type;
	if (!(iso_w = fopen(iso_name, "wa"))) {
	    printm(M_ERROR, "Failed to open %s for writing.\n", iso_name);
	    exit(-1);
	}
	fseek(iso_w, 0, SEEK_SET);
	
	if (ppf) {
	    if (open_ppf(ppf, iso_r, "Created by CD-Tool") < 0) {
		printm(M_ERROR, "Failed to open file %s for writing.\n", ppf);
	    }
	}
	
	optind++;
	if ((argc - 2) != optind) {
	    showhelp();
	    printm(M_ERROR, "insert-file needs two arguments.\n");
	    exit(-1);
	}
	arg1 = argv[optind++];
	arg2 = argv[optind++];
	if (!(file = fopen(arg1, "r"))) {
	    printm(M_ERROR, "Failed to open file %s for reading.\n", arg1);
	    exit(-1);
	}
	dir = find_path(iso_r, f = strdup(arg2));
	free(f);
	if (!dir.R) {
	    printm(M_ERROR, "Path %s was not found on iso.\n", arg2);
	    exit(-1);
	}
	
	old_type = guess_type(iso_r, dir.Sector);
	
	if (type == GUESS) {
	    type = old_type;
	}
	if (((dir.Size / sec_sizes[old_type]) + ((dir.Size % sec_sizes[old_type]) ? 1 : 0)) < 
	    ((filesize(file) / sec_sizes[type]) + ((filesize(file) % sec_sizes[type]) ? 1 : 0))) {
	    if (force) {
		printm(M_WARNING, "New file too big: %i vs %i in %s.\n", dir.Size, filesize(file), sec_modes[type]);
	    } else {
		printm(M_ERROR, "New file too big: %i vs %i in %s.\n", dir.Size, filesize(file), sec_modes[type]);
		exit(-1);
	    }
	}
	printm(M_STATUS, "Writing file %s at path %s.\n", arg1, arg2);
	write_file(iso_r, iso_w, file, type, dir.Sector);
	printm(M_STATUS, "Updating directory entry.\n");
	dir = find_parent(iso_r, f = strdup(arg2));
	free(f);
	if ((f = strrchr(arg2, '/'))) {
	    f++;
	} else {
	    f = arg2;
	}
	d = find_dir_entry(iso_r, &buffer, &dir, f);
	d->Size = filesize(file);
	write_datas(iso_r, iso_w, buffer, GUESS, dir.Sector, dir.Size);
	free(buffer);
    } else if (!strcmp(argv[optind], "insert")) {
	FILE * file;
	if (!(iso_w = fopen(iso_name, "wa"))) {
	    printm(M_ERROR, "Failed to open %s for writing.\n", iso_name);
	    exit(-1);
	}
	fseek(iso_w, 0, SEEK_SET);
	
	if (ppf) {
	    if (open_ppf(ppf, iso_r, "Created by CD-Tool") < 0) {
		printm(M_ERROR, "Failed to open file %s for writing.\n", ppf);
	    }
	}
	
	optind++;
	if ((argc - 2) != optind) {
	    showhelp();
	    printm(M_ERROR, "insert needs two arguments.\n");
	    exit(-1);
	}
	arg1 = argv[optind++];
	sector = atoi(argv[optind++]);
	if (!(file = fopen(arg1, "r"))) {
	    printm(M_ERROR, "Failed to open file %s for reading.\n", arg1);
	    exit(-1);
	}
	printm(M_STATUS, "Writing file %s at sector %i.\n", arg1, sector);
	write_file(iso_r, iso_w, file, type, sector);
    } else {
	showhelp();
	printm(M_ERROR, "Command %s unknow.\n", argv[optind]);
	exit(-1);
    }
    
    exit(0);
}