/*
 * init.c - General initialization.
 *
 * Written by
 *  Andreas Boose <viceteam@t-online.de>
 *  Ettore Perazzoli <ettore@comm2000.it>
 *
 * This file is part of VICE, the Versatile Commodore Emulator.
 * See README for copyright notice.
 *
 *  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 "vice.h"

#include "archdep.h"
#include "attach.h"
#include "cmdline.h"
#include "console.h"
#include "debug.h"
#include "drive.h"
#include "initcmdline.h"
#include "keyboard.h"
#include "log.h"
#include "machine-bus.h"
#include "machine-video.h"
#include "machine.h"
#include "maincpu.h"
#include "monitor.h"
#ifdef HAVE_NETWORK
#include "monitor_binary.h"
#include "monitor_network.h"
#endif
#include "palette.h"
#include "ram.h"
#include "resources.h"
#include "romset.h"
#include "screenshot.h"
#include "signals.h"
#include "sysfile.h"
#include "uiapi.h"
#include "vdrive.h"
#include "video.h"
#include "vsync.h"

#include "init.h"

/* #define DBGINIT */

#ifdef DBGINIT
#define DBG(x)  printf x
#else
#define DBG(x)
#endif

static int init_done = 0;

/* returns true once everything is initialized and the UI has started up */
int init_main_is_done(void)
{
    return init_done;
}

void init_resource_fail(const char *module)
{
    archdep_startup_log_error("Cannot initialize %s resources.\n",
                              module);
}

int init_resources(void)
{
    DBG(("init_resources\n"));
    if (resources_init(machine_get_name())) {
        archdep_startup_log_error("Cannot initialize resource handling.\n");
        return -1;
    }
    if (log_resources_init() < 0) {
        init_resource_fail("log");
        return -1;
    }
    if (sysfile_resources_init() < 0) {
        init_resource_fail("system file locator");
        return -1;
    }
    if (romset_resources_init() < 0) {
        init_resource_fail("romset");
        return -1;
    }
    if (ui_resources_init() < 0) {
        init_resource_fail("UI");
        return -1;
    }
    if (machine_common_resources_init() < 0) {
        init_resource_fail("machine common");
        return -1;
    }
    if (vsync_resources_init() < 0) {
        init_resource_fail("vsync");
        return -1;
    }
    if (sound_resources_init() < 0) {
        init_resource_fail("sound");
        return -1;
    }
    if (keyboard_resources_init() < 0) {
        init_resource_fail("keyboard");
        return -1;
    }
    if (machine_video_resources_init() < 0) {
        init_resource_fail("machine video");
        return -1;
    }
    if (machine_resources_init() < 0) {
        init_resource_fail("machine");
        return -1;
    }
    if (ram_resources_init() < 0) {
        init_resource_fail("RAM");
        return -1;
    }
    if (monitor_resources_init() < 0) {
        init_resource_fail("monitor");
        return -1;
    }
#ifdef HAVE_NETWORK
    if (monitor_network_resources_init() < 0) {
        init_resource_fail("MONITOR_NETWORK");
        return -1;
    }
    if (monitor_binary_resources_init() < 0) {
        init_resource_fail("MONITOR_BINARY");
        return -1;
    }
#endif
    return 0;
}

void init_cmdline_options_fail(const char *module)
{
    archdep_startup_log_error("Cannot initialize %s command-line options.\n",
                              module);
}

int init_cmdline_options(void)
{
    if (cmdline_init()) {
        archdep_startup_log_error("Cannot initialize command-line handling.\n");
        return -1;
    }
    if (log_cmdline_options_init() < 0) {
        init_cmdline_options_fail("log");
        return -1;
    }
    if (initcmdline_init() < 0) {
        init_cmdline_options_fail("main");
        return -1;
    }
    if (sysfile_cmdline_options_init() < 0) {
        init_cmdline_options_fail("system file locator");
        return -1;
    }
    if (!video_disabled_mode && ui_cmdline_options_init() < 0) {
        init_cmdline_options_fail("UI");
        return -1;
    }
    if (machine_class != VICE_MACHINE_VSID) {
        if (romset_cmdline_options_init() < 0) {
            init_cmdline_options_fail("romset");
            return -1;
        }
    }
    if (monitor_cmdline_options_init() < 0) {
        init_cmdline_options_fail("monitor");
        return -1;
    }
    if (machine_common_cmdline_options_init() < 0) {
        init_cmdline_options_fail("machine common");
        return -1;
    }
    if (vsync_cmdline_options_init() < 0) {
        init_cmdline_options_fail("vsync");
        return -1;
    }
    if (sound_cmdline_options_init() < 0) {
        init_cmdline_options_fail("sound");
        return -1;
    }
    if (keyboard_cmdline_options_init() < 0) {
        init_cmdline_options_fail("keyboard");
        return -1;
    }
    if (video_cmdline_options_init() < 0) {
        init_cmdline_options_fail("video");
        return -1;
    }
    if (machine_cmdline_options_init() < 0) {
        init_cmdline_options_fail("machine");
        return -1;
    }

    if (machine_class != VICE_MACHINE_VSID) {
        if (ram_cmdline_options_init() < 0) {
            init_cmdline_options_fail("RAM");
            return -1;
        }
    }
#ifdef HAVE_NETWORK
    if (monitor_network_cmdline_options_init() < 0) {
        init_cmdline_options_fail("MONITOR_NETWORK");
        return -1;
    }
    if (monitor_binary_cmdline_options_init() < 0) {
        init_cmdline_options_fail("MONITOR_BINARY");
        return -1;
    }
#endif
    return 0;
}

/*
    RANT AHEAD: The way VICE initializes its resources ("global variables") at
    startup, and then by reading the config file, is a mess. There is no way to
    make sure a certain order of events without putting a silly amount of work
    into it and be extra careful every time a detail changes or is added. This,
    more than once, produced really hard to solve "chicken and egg" problems.

    Sometimes, solving these problems can be done in a simple, yet very ugly.
    way: after all init was done, we "touch" certain resources again, ie we change
    their value to another and back to the original, triggering the setup callbacks.

    This is the place to collect this sort of hacks - do not put them elsewhere,
    so we always know what parts of the code cause this kind of problem.
 */
static int main_init_hack(void)
{
    /* The FileSystemDeviceX resources do not exist in VSID: */
    if (machine_class != VICE_MACHINE_VSID) {
        int n;
        int dev;

        /* When initializing FileSystemDeviceX resources, vdrive is not properly
           initialized. Switching forth and back seems to solve the following:
           - real device does not work when saved into vicerc
           - real device does not work in xvic
        */
        for (n = 0; n < NUM_DISK_UNITS; n++) {
            resources_get_int_sprintf("FileSystemDevice%d", &dev, n + 8);
            resources_set_int_sprintf("FileSystemDevice%d", dev == 1 ? 0 : 1, n + 8);
            resources_set_int_sprintf("FileSystemDevice%d", dev, n + 8);
        }
    }
    return 0;
}

int init_main(void)
{
    signals_init(debug.do_core_dumps);

    romset_init();

    if (!video_disabled_mode) {
        palette_init();
    }

    if (machine_class != VICE_MACHINE_VSID) {
        screenshot_init();

        drive_cpu_early_init_all();
    }

    machine_bus_init();
    machine_maincpu_init();

    /* Machine-specific initialization.  */
    if (machine_init() < 0) {
        log_error(LOG_DEFAULT, "Machine initialization failed.");
        return -1;
    }

    /* FIXME: what's about uimon_init??? */
    /* the monitor console MUST be available, because of for example cpujam,
       or -initbreak from cmdline.
    */
    if (console_init() < 0) {
        log_error(LOG_DEFAULT, "Console initialization failed.");
        return -1;
    }

    keyboard_init();

    if (machine_class != VICE_MACHINE_VSID) {
        vdrive_init();
    }

    ui_init_finalize();

    main_init_hack();

    init_done = 1;

    return 0;
}
