/* Sample client program using libargus. */

#include <stdio.h>
#include <stdlib.h>

#include "libargus/libargus.h"

/* Ideas:
 *
 * > Ncurses mode:
 *   - Multicolumn display.
 *   - SIGWINCH.
 *   - Colors. :^)
 *   - Minimum and maximum values.
 *   - Jitter factor.  (Running average of differential?)
 *   - User input, such as reset, quit, and remove sensor.
 *   - Activity meter, based on time of last update.
 *
 * > Command-line mode:
 *   - Parameter to specify name of argusd socket.
 *   - Option to suppress sensor names.
 *   - List of sensor names on command line.
 *
 */

int main(int argc, char** argv)
{
    int i, width;
    int ret = EXIT_SUCCESS;
    argus_t ctx;

    /* Connect to the argusd server. */
    if (argus_connect(&ctx, NULL, "/tmp/argusd") < 0) {
        perror("argus_connect");
        return EXIT_FAILURE;
    }

    /* Monitor all sensors. */
    if (argus_listen(&ctx, ctx.sensor_names_all,
                     ctx.sensor_count_all, NULL) < 0) {
        perror("argus_listen");
        ret = EXIT_FAILURE;
        goto error;
    }

    /* Determine the width of the longest sensor name. */
    for (i = width = 0; i < ctx.sensor_count; ++i) {
        int len = strlen(ctx.sensor_names[i]);
        if (width < len) width = len;
    }

    /* Get current values for sensors. */
    if (argus_loop_next(&ctx, -1) < 0) {
        perror("argus_loop_next");
        ret = EXIT_FAILURE;
        goto error;
    }

    /* Display current values for all sensors. */
    for (i = 0; i < ctx.sensor_count; ++i) {
        printf("%-*s : %3d\n", width, ctx.sensor_names[i],
                ctx.sensor_values[i]);
    }

error:

    /* Disconnect from the argusd server. */
    if (argus_disconnect(&ctx) < 0) {
        perror("argus_disconnect");
        ret = EXIT_FAILURE;
    }

    return ret;
}

/* vim: set ts=4 sts=4 sw=4 tw=80 et: */