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#include "commands.h"
#include "music.h"

#include <glib.h>
#include <string.h>
#include <gio/gio.h>

static void commands_list(GSocketConnection *connection, const gchar *cmd) {
	gchar **data = g_strsplit(cmd, " ", 2);
	for(gint i = 0; data[i]; i++) {
		g_debug("\tdata[%d] = %s", i, data[i]);
	}
	g_assert(data[0] != NULL && data[1] != NULL);

	gchar *dirname = g_strdup(data[1]);
	g_strfreev(data);

	struct directory *directory = music_find_dir(dirname);
	g_assert(directory != NULL);

	GSocket *socket = g_socket_connection_get_socket(connection);

	for(struct directory *d = directory->sub; d; d = d->next) {
		gchar *name = g_path_get_basename(d->path);
		g_socket_send(socket, name, strlen(name), NULL, NULL);
		g_socket_send(socket, "\n", 1, NULL, NULL);
		g_free(name);
	}

	for(struct file *f = directory->files; f; f = f->next) {
		g_socket_send(socket, f->name, strlen(f->name), NULL, NULL);
		g_socket_send(socket, "\n", 1, NULL, NULL);
	}
}

static void commands_get_raw(GSocketConnection *connection, const gchar *cmd) {
	GError *error = NULL;
	gchar **data = g_strsplit(cmd, " ", 2);
	g_assert(data[0] != NULL && data[1] != NULL);

	gchar *path = g_strdup(data[1]);
	g_strfreev(data);

	struct file *f = music_find_file(path);

	if(f == NULL) {
		g_error("couldn't find %s", path);
	}

	GOutputStream *os = g_io_stream_get_output_stream((GIOStream*)connection);
	GFile *file = g_file_new_for_path(path);
	GFileInputStream *is = g_file_read(file, NULL, &error);

	if(is == NULL) {
		g_error(error->message);
	}

	gssize size = g_output_stream_splice(os, (GInputStream*)is,
			G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE ||
			G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET,
			NULL, &error);
	if(size == -1) {
		g_error(error->message);
	}
	g_debug("wrote %lu bytes of file data", size);

	g_object_unref(is);
	g_object_unref(file);

	g_free(path);
}

void commands_handle(GSocketConnection *connection, const gchar *cmd) {
	g_debug("handling command string %s", cmd);
	if(g_ascii_strncasecmp(cmd, "/list", 5) == 0) {
		commands_list(connection, cmd);
	} else if(g_ascii_strncasecmp(cmd, "/get_raw", 8) == 0) {
		commands_get_raw(connection, cmd);
	} else {
		g_warning("no command handlers found");
	}
}