/*
 * This file is part of QMI-RIL.
 *
 * Copyright (C) 2017 Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
 *
 * QMI-RIL 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 3 of the License, or
 * (at your option) any later version.
 *
 * QMI-RIL 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 QMI-RIL.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdlib.h>

#define LOG_TAG "RIL"
#include <utils/Log.h>

#include <qmi-ril.h>

static void
get_software_version_ready(QmiClientDms *client, GAsyncResult *res,
			   RIL_Token token)
{
	const gchar *version;
	QmiMessageDmsGetSoftwareVersionOutput *output;
	GError *error = NULL;

	output = qmi_client_dms_get_software_version_finish(client, res,
							    &error);
	if (!output) {
		RIL_LOGE("%s: error: operation failed: %s", __func__,
			 error->message);
		goto error;
	}

	if (!qmi_message_dms_get_software_version_output_get_result (output, &error)) {
		RIL_LOGE("error: couldn't get software version: %s",
			 error->message);
		goto error;
	}

	qmi_message_dms_get_software_version_output_get_version(
		output, &version, NULL);

	RIL_LOGD("Software version: %s", version);

	ril_request_complete(token, RIL_E_SUCCESS, (void *) version, sizeof(version));

	goto complete;

error:
	ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);

complete:
	if (error)
		g_error_free(error);
	if (output)
		qmi_message_dms_get_software_version_output_unref(output);
}

int ril_request_baseband_version(void *data, size_t size, RIL_Token token)
{
	struct ril_request *request;
	int rc;

	rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
	if (rc < 0)
		return RIL_REQUEST_UNHANDLED;

	request = ril_request_find_request_status(RIL_REQUEST_BASEBAND_VERSION,
						  RIL_REQUEST_HANDLED);
	if (request != NULL)
		return RIL_REQUEST_UNHANDLED;

	qmi_client_dms_get_software_version(ctx->DmsClient, NULL, 10,
					    ctx->cancellable,
					    (GAsyncReadyCallback)get_software_version_ready,
					    token);

	return RIL_REQUEST_HANDLED;
}

static void uim_get_imsi_ready(QmiClientDms *client, GAsyncResult *res,
			       RIL_Token token)
{
	const gchar *str = NULL;
	QmiMessageDmsUimGetImsiOutput *output;
	GError *error = NULL;

	output = qmi_client_dms_uim_get_imsi_finish (client, res, &error);
	if (!output) {
		RIL_LOGE("%s: error: operation failed: %s", __func__,
			 error->message);
		goto error;
	}

	if (!qmi_message_dms_uim_get_imsi_output_get_result (output, &error)) {
		RIL_LOGE("error: couldn't get IMSI: %s", error->message);
		goto error;
	}

	qmi_message_dms_uim_get_imsi_output_get_imsi(output, &str, NULL);

	RIL_LOGD("UIM IMSI retrieved: '%s'", str);

	ril_request_complete(token, RIL_E_SUCCESS, (void *) str, sizeof(str));

	goto complete;

error:
	ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);

complete:
	if (error)
		g_error_free(error);
	if (output)
		qmi_message_dms_uim_get_imsi_output_unref(output);
}

int ril_request_get_imsi(void *data, size_t size, RIL_Token token)
{
	struct ril_request *request;
	int rc;

	rc = ril_radio_state_check(RADIO_STATE_SIM_READY);
	if (rc < 0)
		return RIL_REQUEST_UNHANDLED;

	request = ril_request_find_request_status(RIL_REQUEST_GET_IMSI, RIL_REQUEST_HANDLED);
	if (request != NULL)
		return RIL_REQUEST_UNHANDLED;

	qmi_client_dms_uim_get_imsi(ctx->DmsClient, NULL, 10,
				    ctx->cancellable,
				    (GAsyncReadyCallback)uim_get_imsi_ready,
				    token);

	return RIL_REQUEST_HANDLED;
}

static void get_ids_ready(QmiClientDms *client, GAsyncResult *res,
			  RIL_Token token)
{
	struct ril_request *request;
	const gchar *imei_buf;
	char *imei = NULL;
	char *imeisv = NULL;
	unsigned int imeisvlen;
	QmiMessageDmsGetIdsOutput *output;
	GError *error = NULL;

	output = qmi_client_dms_get_ids_finish (client, res, &error);
	if (!output) {
		RIL_LOGE("%s: error: operation failed: %s", __func__,
			 error->message);
		goto error;
	}

	if (!qmi_message_dms_get_ids_output_get_result(output, &error)) {
		RIL_LOGE("error: couldn't get IDs: %s", error->message);
		goto error;
	}

	qmi_message_dms_get_ids_output_get_imei(output, &imei_buf, NULL);

	imei = (char*) imei_buf;

	// not yet a way to retrieve the IMEISV, so set 00 as SVN
	imeisvlen = strlen(imei) - 1 + 3;
	imeisv = (char*) malloc(imeisvlen);
	strcpy(imeisv, imei);
	imeisv = strcat(imeisv, "00");
	imeisv[imeisvlen] = '\0';

	RIL_LOGD("Device IDs retrieved:\n"
		 "\tIMEI: '%s'\n"
		 "\tIMEISV: '%s'", imei, imeisv);

	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEI, RIL_REQUEST_HANDLED);
	if (request != NULL)
		ril_request_complete(request->token, RIL_E_SUCCESS, (void *) imei, sizeof(imei));

	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEISV, RIL_REQUEST_HANDLED);
	if (request != NULL)
		ril_request_complete(request->token, RIL_E_SUCCESS, (void *) imeisv, sizeof(imeisv));

	goto complete;

error:
	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEI, RIL_REQUEST_HANDLED);
	if (request != NULL)
		ril_request_complete(request->token, RIL_E_GENERIC_FAILURE, NULL, 0);

	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEISV, RIL_REQUEST_HANDLED);
	if (request != NULL)
		ril_request_complete(request->token, RIL_E_GENERIC_FAILURE, NULL, 0);

complete:
	free(imei);
	free(imeisv);

	if (error)
		g_error_free(error);
	if (output)
		qmi_message_dms_get_ids_output_unref(output);
}

int ril_request_get_imei(void *data, size_t size, RIL_Token token)
{
	struct ril_request *request;
	int rc;

	rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
	if (rc < 0)
		return RIL_REQUEST_UNHANDLED;

	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEI, RIL_REQUEST_HANDLED);
	if (request != NULL)
		return RIL_REQUEST_UNHANDLED;

	// The response to the IMEISV request will hold IMEI as well
	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEISV, RIL_REQUEST_HANDLED);
	if (request != NULL)
		return RIL_REQUEST_HANDLED;

	qmi_client_dms_get_ids(ctx->DmsClient, NULL, 10,
			       ctx->cancellable,
			       (GAsyncReadyCallback)get_ids_ready,
			       token);

	return RIL_REQUEST_HANDLED;
}

int ril_request_get_imeisv(void *data, size_t size, RIL_Token token)
{
	struct ril_request *request;
	int rc;

	rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
	if (rc < 0)
		return RIL_REQUEST_UNHANDLED;

	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEISV, RIL_REQUEST_HANDLED);
	if (request != NULL)
		return RIL_REQUEST_UNHANDLED;

	// The response to the IMEI request will hold IMEISV as well
	request = ril_request_find_request_status(RIL_REQUEST_GET_IMEI, RIL_REQUEST_HANDLED);
	if (request != NULL)
		return RIL_REQUEST_HANDLED;

	qmi_client_dms_get_ids(ctx->DmsClient, NULL, 10,
			       ctx->cancellable,
			       (GAsyncReadyCallback)get_ids_ready,
			       token);

	return RIL_REQUEST_HANDLED;
}

int ril_request_screen_state(void *data, size_t size, RIL_Token token)
{
	int value;
	int rc;

	if (data == NULL || size < sizeof(int)) {
		ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
		return RIL_REQUEST_COMPLETED;
	}

	rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
	if (rc < 0)
		return RIL_REQUEST_UNHANDLED;

	value = *((int *) data);

	if (value)
		ril_request_unsolicited(RIL_UNSOL_RESPONSE_VOICE_NETWORK_STATE_CHANGED, NULL, 0);

	ril_request_complete(token, RIL_E_SUCCESS, NULL, 0);

	return RIL_REQUEST_COMPLETED;
}