/*
 * Copyright (c) 2018 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Flora License, Version 1.1 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://floralicense.org/license/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <glib.h>
#include <string.h>
#include <stdio.h>
#include <ttd-worker-lib.h>
#include "ipc.h"
#include "err-check.h"
#include "task-worker.h"
#include "log.h"

static void send_report(const char *report_data, int status);
static void submit_result_cb(ttd_worker_submit_result_e result, ttd_worker_report *report, void *user_data);

static struct ipc
{
    char *command_id;
    volatile gint counter;
} ipc_data =
{
    .command_id = NULL
};

void ipc_init(const char *command_id, int counter)
{
    ON_NULL_RETURN(command_id);
    ON_TRUE_RETURN(counter < 0);

    ipc_data.command_id = strdup(command_id);
    g_atomic_int_set(&ipc_data.counter, counter);
}

void ipc_shutdown()
{
    if (ipc_data.command_id)
        g_free(ipc_data.command_id);
}

void ipc_send_report(const char *report)
{
    ON_NULL_RETURN(report);

    if (!g_atomic_int_dec_and_test(&ipc_data.counter))
    {
        send_report(report, TTD_WORKER_WORKING);
    }
    else
    {
        send_report(report, TTD_WORKER_COMPLETED);
        cleanup_and_exit();
    }
}

struct report_data
{
    char *data;
    ttd_worker_working_state_e status;
};

static gboolean invoke_on_main_thread_cb(gpointer user_data)
{
    ON_NULL_RETURN_VAL(user_data, FALSE);

    struct report_data *r_data = (struct report_data *)user_data;

    ON_NULL_RETURN_VAL(r_data->data, FALSE);

    ttd_worker_report *report = ttd_worker_report_new_by_cmd_id(ipc_data.command_id);
    ttd_worker_report_set_working_state(report, r_data->status);

    ttd_worker_report_set_report_data(report, r_data->data);

    if (r_data->status == TTD_WORKER_WORKING)
    {
        ttd_worker_submit_report(report, submit_result_cb, NULL);
    }
    else if (r_data->status == TTD_WORKER_COMPLETED)
    {
        ttd_worker_submit_result_e result;
        ttd_worker_submit_report_sync(report, &result);

        if (result == TTD_WORKER_SUBMIT_SUCCESS)
            DBG("Sending final result succeeded");
        else
            DBG("Sending final result failed");

        ttd_worker_report_free(report);

        cleanup_and_exit();
    }

    g_free(r_data->data);
    g_free(r_data);
    return FALSE;
}

static void send_report(const char *report_data, ttd_worker_working_state_e status)
{
    struct report_data *r_data = (struct report_data *)g_malloc(sizeof(struct report_data));

    r_data->data = strdup(report_data);
    r_data->status = status;
    g_main_context_invoke(NULL, invoke_on_main_thread_cb, r_data);
}

static void submit_result_cb(ttd_worker_submit_result_e result, ttd_worker_report *report, void *user_data)
{
    if (result == TTD_WORKER_SUBMIT_SUCCESS)
        DBG("Sending result succeeded");
    else
        DBG("Sending result failed");

    ttd_worker_report_free(report);
}