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

int download(char *path, char *url, char is_audio) {
    int ret;
    char *args[10];
    args[0] = "yt-dlp";
    args[1] = "--config-locations";
    if (is_audio) {
        args[2] = "/mnt/youtube/yt-dlp_audio.conf";
    } else {
        args[2] = "/mnt/youtube/yt-dlp_video.conf";
    }
    args[3] = "--download-archive";
    if (is_audio) {
        char *buf = malloc(strlen(path) + 1);
        sprintf(buf, "%s/downloaded_audio.txt", path);
        args[4] = buf;
    } else {
        char *buf = malloc(strlen(path) + 1);
        sprintf(buf, "%s/downloaded_video.txt", path);
        args[4] = buf;
    }
    args[5] = "--paths";
    args[6] = path;
    args[7] = "--yes-playlist";
    args[8] = url;
    args[9] = 0;

    int pid = fork();

    if (pid == -1) {
        printf("Couldn't fork'\n");
        return 1;
    } else if (pid > 0) {
        waitpid(pid, &ret, 0);
    } else {
        execvp(args[0], args);
    }
    free(buf);

    return ret;
}

int main(int argc, char **argv) {
    if (argc != 4) {
        fprintf(stderr, "Incorred amount of arguments\n");
    }
    char *path;
    char *url;
    char is_audio;
    size_t i;
    for (i = 1; i < 4; i++) {
        if (argv[i][0] == '-') {
            if (strcmp(argv[i], "-audio") == 0) {
                is_audio = 1;
            } else if (strcmp(argv[i], "-video") == 0) {
                is_audio = 0;
            } else {
                fprintf(stderr, "Invalid option: %s\n", argv[i]);
                return 1;
            }
        } else if (strstr(argv[i], "https://")) {
            url = argv[i];
        } else {
            path = argv[i];
        }
    }
    if (!path) {
        fprintf(stderr, "No path specified\n");
        return 1;
    }
    if (!url) {
        fprintf(stderr, "No valid url specified\n");
        return 1;
    }

    int ret;
    ret = download(path, url, is_audio);
    if (ret != 0) {
        fprintf(stderr, "Download Failed\n");
        return 1;
    }
    return 0;
}