#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/un.h>
#include <sys/socket.h>

int main(int argc, char** argv) {
    printf("INFO: interface\n");

    int fd = socket(AF_UNIX, SOCK_STREAM, 0);

    struct sockaddr_un addr = {0};
    addr.sun_family = AF_UNIX;
    strcpy(addr.sun_path, "/tmp/my_wallpaper.sock");
    
    connect(fd, (struct sockaddr*)&addr, sizeof(addr));
    
    if(argc < 2) {
        printf("command required\n");
        printf("usage %s command [options]\n", argv[0]);
        return 1;
    }

    if(strcmp(argv[1], "pause") == 0){
        char command = 'p';
        write(fd, &command, 1);
    } else if(strcmp(argv[1], "next") == 0){
        char command = 'n';
        write(fd, &command, 1);
    } else if(strcmp(argv[1], "back") == 0){
        char command = 'b';
        write(fd, &command, 1);
    } else if(strcmp(argv[1], "interval") == 0){
        char command = 't';
        write(fd, &command, 1);
        if(argc < 3) {
            printf("interval requires time as argument\n");
            printf("usage %s interval time\n", argv[0]);
            return 0;
        }
        char *endptr;
        long number = strtol(argv[2], &endptr, 10);

        if (*endptr != '\0') {
            printf("Conversion failed: %s is not a valid number.\n", argv[2]);
            return 1;
        }
        char value1 = number >> 8;
        char value2 = number;
        write(fd, &value1, 1);
        write(fd, &value2, 1);
    } else if(strcmp(argv[1], "info") == 0){
        char command = 'i';
        write(fd, &command, 1);
    } else if(strcmp(argv[1], "static") == 0){
        char command = 'c';
        write(fd, &command, 1);
    } else {
        printf("unknown command\n");
        printf("available commands [pause, next, back, interval, info, static]");

    }
    
    
    return 0;
}