#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <stddef.h>
#include <assert.h>
#include <ltdl.h>
#include <memblock.h>

#include "core.h"
#include "mainloop.h"
#include "module.h"
#include "mainloop-signal.h"
#include "cmdline.h"
#include "cli-command.h"

static struct pa_mainloop *mainloop;

static void exit_signal_callback(void *id, int sig, void *userdata) {
    struct pa_mainloop_api* m = pa_mainloop_get_api(mainloop);
    m->quit(m, 1);
    fprintf(stderr, __FILE__": got signal.\n");
}

static void aux_signal_callback(void *id, int sig, void *userdata) {
    struct pa_core *c = userdata;
    assert(c);
    pa_module_load(c, sig == SIGUSR1 ? "module-cli" : "module-cli-protocol-unix", NULL);
}

int main(int argc, char *argv[]) {
    struct pa_core *c;
    struct pa_cmdline *cmdline = NULL;
    struct pa_strbuf *buf = NULL;
    char *s;
    int r, retval = 0;

    if (!(cmdline = pa_cmdline_parse(argc, argv))) {
        fprintf(stderr, __FILE__": failed to parse command line.\n");
        return 1;
    }

    if (cmdline->help) {
        pa_cmdline_help(argv[0]);
        pa_cmdline_free(cmdline);
        return 0;
    }
    
    r = lt_dlinit();
    assert(r == 0);
    
    mainloop = pa_mainloop_new();
    assert(mainloop);

    r = pa_signal_init(pa_mainloop_get_api(mainloop));
    assert(r == 0);
    pa_signal_register(SIGINT, exit_signal_callback, NULL);
    signal(SIGPIPE, SIG_IGN);

    c = pa_core_new(pa_mainloop_get_api(mainloop));
    assert(c);
    
/*    pa_module_load(c, "module-oss-mmap", "device=/dev/dsp playback=1 record=1");
    pa_module_load(c, "module-oss-mmap", "/dev/dsp1");
    pa_module_load(c, "module-pipe-sink", NULL);
    pa_module_load(c, "module-simple-protocol-tcp", NULL);
    pa_module_load(c, "module-simple-protocol-unix", NULL);
    pa_module_load(c, "module-cli-protocol-tcp", NULL);
    pa_module_load(c, "module-cli-protocol-unix", NULL);
    pa_module_load(c, "module-native-protocol-tcp", NULL);
    pa_module_load(c, "module-native-protocol-unix", NULL);
    pa_module_load(c, "module-esound-protocol-tcp", NULL);
    pa_module_load(c, "module-cli", NULL);*/

    pa_signal_register(SIGUSR1, aux_signal_callback, c);
    pa_signal_register(SIGUSR2, aux_signal_callback, c);

    buf = pa_strbuf_new();
    assert(buf);
    r = pa_cli_command_execute(c, cmdline->cli_commands, buf, &cmdline->fail, &cmdline->verbose);
    fprintf(stderr, s = pa_strbuf_tostring_free(buf));
    free(s);
    
    if (r < 0 && cmdline->fail) {
        fprintf(stderr, __FILE__": failed to initialize daemon.\n");
        retval = 1;
    } else if (!c->modules || pa_idxset_ncontents(c->modules) == 0) {
        fprintf(stderr, __FILE__": daemon startup without any loaded modules, refusing to work.\n");
        retval = 1;
    } else {
        fprintf(stderr, __FILE__": mainloop entry.\n");
        if (pa_mainloop_run(mainloop, &retval) < 0)
            retval = 1;
        fprintf(stderr, __FILE__": mainloop exit.\n");
    }

        
    pa_core_free(c);

    pa_signal_done();
    pa_mainloop_free(mainloop);
    
    pa_cmdline_free(cmdline);

    lt_dlexit();
    
    return retval;
}