/*
 * Copyright (C) 2021 Richard Hughes <richard@hughsie.com>
 *
 * SPDX-License-Identifier: LGPL-2.1+
 */

#include "config.h"

#include <curl/curl.h>

#include "fu-redfish-multipart-device.h"
#include "fu-redfish-request.h"

struct _FuRedfishMultipartDevice {
	FuRedfishDevice		 parent_instance;
};

G_DEFINE_TYPE (FuRedfishMultipartDevice, fu_redfish_multipart_device, FU_TYPE_REDFISH_DEVICE)

G_DEFINE_AUTOPTR_CLEANUP_FUNC(curl_mime, curl_mime_free)

static GString *
fu_redfish_multipart_device_get_parameters (FuRedfishMultipartDevice *self)
{
	g_autoptr(GString) str = g_string_new (NULL);
	g_autoptr(JsonBuilder) builder = json_builder_new ();
	g_autoptr(JsonGenerator) json_generator = json_generator_new ();
	g_autoptr(JsonNode) json_root = NULL;

	/* create header */
	json_builder_begin_object (builder);
	json_builder_set_member_name (builder, "Targets");
	json_builder_begin_array (builder);
	json_builder_add_string_value (builder, fu_device_get_logical_id (FU_DEVICE (self)));
	json_builder_end_array (builder);
	json_builder_set_member_name (builder, "@Redfish.OperationApplyTime");
	json_builder_add_string_value (builder, "Immediate");
	json_builder_end_object (builder);

	/* export as a string */
	json_root = json_builder_get_root (builder);
	json_generator_set_pretty (json_generator, TRUE);
	json_generator_set_root (json_generator, json_root);
	json_generator_to_gstring (json_generator, str);
	return g_steal_pointer (&str);
}

static gboolean
fu_redfish_multipart_device_write_firmware (FuDevice *device,
					    FuFirmware *firmware,
					    FwupdInstallFlags flags,
					    GError **error)
{
	FuRedfishMultipartDevice *self = FU_REDFISH_MULTIPART_DEVICE (device);
	FuRedfishBackend *backend = fu_redfish_device_get_backend (FU_REDFISH_DEVICE (self));
	CURL *curl;
	JsonObject *json_obj;
	curl_mimepart *part;
	const gchar *location;
	g_autofree gchar *filename = NULL;
	g_autoptr(curl_mime) mime = NULL;
	g_autoptr(FuRedfishRequest) request = NULL;
	g_autoptr(GBytes) fw = NULL;
	g_autoptr(GString) params = NULL;

	/* get default image */
	fw = fu_firmware_get_bytes (firmware, error);
	if (fw == NULL)
		return FALSE;

	/* Get the update version */
	filename = g_strdup_printf ("%s.bin", fu_device_get_name (FU_DEVICE (self)));

	/* create the multipart request */
	request = fu_redfish_backend_request_new (backend);
	curl = fu_redfish_request_get_curl (request);
	mime = curl_mime_init (curl);
	curl_easy_setopt (curl, CURLOPT_MIMEPOST, mime);

	params = fu_redfish_multipart_device_get_parameters (self);
	part = curl_mime_addpart (mime);
	curl_mime_name (part, "UpdateParameters");
	curl_mime_type (part, "application/json");
	curl_mime_data (part, params->str, CURL_ZERO_TERMINATED);
	if (g_getenv ("FWUPD_REDFISH_VERBOSE") != NULL)
		g_debug ("request: %s", params->str);

	part = curl_mime_addpart (mime);
	curl_mime_name (part, "UpdateFile");
	curl_mime_type (part, "application/octet-stream");
	curl_mime_filedata (part, filename);
	curl_mime_data (part, g_bytes_get_data (fw, NULL), g_bytes_get_size (fw));

	fu_device_set_status (FU_DEVICE (self), FWUPD_STATUS_DEVICE_WRITE);
	if (!fu_redfish_request_perform (request,
					 fu_redfish_backend_get_push_uri_path (backend),
					 FU_REDFISH_REQUEST_PERFORM_FLAG_LOAD_JSON,
					 error))
		return FALSE;
	if (fu_redfish_request_get_status_code (request) != 202) {
		g_set_error (error,
			     FWUPD_ERROR,
			     FWUPD_ERROR_INVALID_FILE,
			     "failed to upload %s: %li",
			     filename,
			     fu_redfish_request_get_status_code (request));
		return FALSE;
	}

	/* prefer the header, otherwise fall back to the response */
	json_obj = fu_redfish_request_get_json_object (request);
	if (json_object_has_member (json_obj, "TaskMonitor")) {
		const gchar *tmp = json_object_get_string_member (json_obj, "TaskMonitor");
		g_debug ("task manager for cleanup is %s", tmp);
	}

	/* poll the task for progress */
	if (!json_object_has_member (json_obj, "@odata.id")) {
		g_set_error (error,
			     FWUPD_ERROR,
			     FWUPD_ERROR_INVALID_FILE,
			     "no task returned for %s",
			     fu_redfish_backend_get_push_uri_path (backend));
		return FALSE;
	}
	location = json_object_get_string_member (json_obj, "@odata.id");
	return fu_redfish_device_poll_task (FU_REDFISH_DEVICE (self),
					    location, error);
}

static void
fu_redfish_multipart_device_init (FuRedfishMultipartDevice *self)
{
	fu_device_set_summary (FU_DEVICE (self), "Redfish multipart device");
}

static void
fu_redfish_multipart_device_class_init (FuRedfishMultipartDeviceClass *klass)
{
	FuDeviceClass *klass_device = FU_DEVICE_CLASS (klass);
	klass_device->write_firmware = fu_redfish_multipart_device_write_firmware;
}