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/* $Id: check.c 3 2024-08-20 21:05:24Z nishi $ */

#include "config.h"

#include <stdio.h>

int check_db(void) {
        int counter = 0;
        const char* db = "";
#ifdef USE_SQLITE
        counter++;
        db = "SQLite";
#endif
#ifdef USE_GDBM
        counter++;
        db = "GDBM";
#endif
#ifdef USE_NDBM
        counter++;
        db = "NDBM";
#endif
        if(counter > 1) {
                fprintf(stderr, "You cannot use multiple database types at once.\n");
                return 1;
        } else if(counter == 0) {
                fprintf(stderr, "You must select a database type.\n");
                return 1;
        } else {
                printf("Database type is %s\n", db);
        }
        return 0;
}

int check_theme(void) {
        int counter = 0;
        const char* theme = "";
#ifdef USE_MODERN
        counter++;
        theme = "Modern";
#endif
#ifdef USE_OPTIMIZED
        counter++;
        theme = "Optimized";
#endif
        if(counter > 1) {
                fprintf(stderr, "You cannot use multiple themes at once.\n");
                return 1;
        } else if(counter == 0) {
                fprintf(stderr, "You must select a theme.\n");
                return 1;
        } else {
                printf("Theme is %s\n", theme);
        }
        return 0;
}

int check_auth(void) {
        int counter = 0;
        const char* method = "";
#ifdef USE_COOKIE
        counter++;
        method = "Cookie";
#endif
        if(counter > 1) {
                fprintf(stderr, "You cannot use multiple authentication methods at once.\n");
                return 1;
        } else if(counter == 0) {
                fprintf(stderr, "You must select an authentication method.\n");
                return 1;
        } else {
                printf("Authentication method is %s\n", method);
        }
        return 0;
}

int main() {
        int st;
        st = check_db();
        if(st != 0) goto fail;
        st = check_auth();
        if(st != 0) goto fail;
        st = check_theme();
        if(st != 0) goto fail;
        printf("Config validation successful.\n");
        return 0;
fail:
        fprintf(stderr, "Config validation failure.\n");
        return st;
}