#define NOB_IMPLEMENTATION

#include <errno.h>
#include <string.h>
#include "nob.h"

#define BUILD_DIR "./build/"
#define SRC_DIR "./src/"
#define OBJDIR BUILD_DIR"obj/"
#define LIB_DIR "./lib/"
#define LIB_OUT LIB_DIR"libglc.a"

Cmd ar_cmd = {0};

_Bool walk_dir_func(Nob_Walk_Entry e) {
    printf("Path: %s\n", e.path);
    if (e.type == NOB_FILE_REGULAR) {
        size_t input_len = strlen(e.path);
        if (input_len > 3) {
            if (strcmp(&e.path[input_len - 2], ".h") != 0) {
                Cmd cmd = {0};
                String_Builder sb_out = {0};
                String_View sv = {0};

                char *path_cpy = strdup(e.path);

                sv = sv_from_cstr(path_cpy);

                size_t l = strlen(e.path);
                while (--l) {
                    if (e.path[l] == '/') {
                        sv_chop_left(&sv, l + 1);
                        break ;
                    }
                }

                printf("file_name: %s\n", sv.data);

                cmd_append(&cmd, "cc", "-c", "-static");
                nob_cc_flags(&cmd);

                cmd_append(&cmd, "-o");
                sb_append_cstr(&sb_out, OBJDIR);
                sb_append_cstr(&sb_out, sv.data);
                cmd_append(&cmd, sb_out.items);
                cmd_append(&cmd, strdup(path_cpy));
                cmd_run(&cmd);
                cmd_append(&ar_cmd, strdup(sb_out.items));
                memset(sb_out.items, 0, sb_out.count);
                sb_free(sb_out);
            }
        }
    }
    *e.action = NOB_WALK_CONT;
    return true;
}

int main(int argc, char **argv) {
    NOB_GO_REBUILD_URSELF(argc, argv);

    if (!nob_mkdir_if_not_exists(BUILD_DIR)) {
        nob_log(ERROR, "Failed to create %s: %s\n", BUILD_DIR, strerror(errno));
        return 1;
    }

    if (!nob_mkdir_if_not_exists(OBJDIR)) {
        nob_log(ERROR, "Failed to create %s: %s\n", OBJDIR, strerror(errno));
        return 1;
    }

    const char *bin_path = BUILD_DIR "main";

    cmd_append(&ar_cmd, "ar", "rcs", LIB_OUT);
    nob_walk_dir(SRC_DIR, walk_dir_func, .post_order = true);

    cmd_run(&ar_cmd);

    nob_log(INFO, "Starting build...\n");
}