/* whitelist.c - Manages a Parsee MUC/user whitelist manually
 * ============================================================
 * Example of usage:
 * parsee-whitelist [CONFIG] [add|del|remove|list] <user>
 * Under CC0, as its a rather useful example of a Parsee tool.
 * See LICENSE for more information about Parsee's licensing. */

#include "common.h"

#include <Cytoplasm/Str.h>

int
Main(Array *args, HashMap *env)
{
    int ret = EXIT_SUCCESS;
    char *verb;
    Db *db;
    if (ArraySize(args) <= 2)
    {
        Log(LOG_ERR, 
            "Usage: %s [CONFIG] [add|del|clear|list] <user>",
            ArrayGet(args, 0)
        );
        return EXIT_FAILURE;
    }

    if (!(db = GetDB(ArrayGet(args, 1))))
    {
        Log(LOG_ERR, "Couldn't load database");
        ret = EXIT_FAILURE;
        goto end;
    }

    verb = ArrayGet(args, 2);
    if (StrEquals(verb, "add"))
    {
        char *user = ArrayGet(args, 3);
        DbRef *ref = !user ? NULL : DbLock(
            db, 1, "whitelist"
        );
        if (!ref && user)
        {
            ref = DbCreate(
                db, 1, "whitelist"
            );
        }

        if (!user)
        {
            ret = EXIT_FAILURE;
            goto end;
        }
        JsonValueFree(HashMapSet(
            DbJson(ref),
            user, JsonValueObject(HashMapCreate())
        ));
        DbUnlock(db, ref);
    }
    else if (StrEquals(verb, "del"))
    {
        char *user = ArrayGet(args, 3);
        DbRef *ref = !user ? NULL : DbLock(
            db, 1, "whitelist"
        );
        if (!ref && user)
        {
            ref = DbCreate(
                db, 1, "whitelist"
            );
        }

        if (!user)
        {
            ret = EXIT_FAILURE;
            goto end;
        }
        JsonValueFree(HashMapDelete(DbJson(ref), user));
        DbUnlock(db, ref);
    }
    else if (StrEquals(verb, "clear"))
    {
        DbDelete(db, 1, "whitelist");
    }
    else if (StrEquals(verb, "list"))
    {
        DbRef *ref = DbLockIntent(
            db, DB_HINT_READONLY, 
            1, "whitelist"
        );
        Array *keys = HashMapKeys(DbJson(ref));
        size_t i;

        for (i = 0; i < ArraySize(keys); i++)
        {
            char *key = ArrayGet(keys, i);

            Log(LOG_INFO, "- %s", key);
        }


        ArrayFree(keys);
        DbUnlock(db, ref);
    }
    else
    {
        ret = EXIT_FAILURE;
        goto end;
    }

end:
    (void) env;
    DbClose(db);
    return ret;
}