#include <XMPPCommand.h>

#include <Cytoplasm/Memory.h>
#include <Cytoplasm/Array.h>
#include <Cytoplasm/Str.h>

struct XMPPCommand {
    XMPPCmdCallback callback;
    char *node, *name;

    Array *options;
};

XMPPCommand *
XMPPBasicCmd(char *node, char *name, XMPPCmdCallback callback_funct)
{
    XMPPCommand *cmd;

    if (!node || !name || !callback_funct)
    {
        return NULL;
    }

    cmd = Malloc(sizeof(*cmd));
    cmd->callback = callback_funct;
    cmd->node = StrDuplicate(node);
    cmd->name = StrDuplicate(name);

    /* No options -> no form required */
    cmd->options = NULL;

    return cmd;
}
void
XMPPFreeCommand(XMPPCommand *cmd)
{
    size_t i;
    if (!cmd)
    {
        return;
    }

    for (i = 0; i < ArraySize(cmd->options); i++)
    {
        XMPPOption *opt = ArrayGet(cmd->options, i);
        XMPPFreeOption(opt);
    }
    ArrayFree(cmd->options);

    Free(cmd->node);
    Free(cmd->name);
    Free(cmd);
}
void
XMPPAddOption(XMPPCommand *cmd, XMPPOption *opt)
{
    if (!cmd || !opt)
    {
        return;
    }
    if (!cmd->options)
    {
        cmd->options = ArrayCreate();
    }

    ArrayAdd(cmd->options, opt);
}

XMLElement *
XMPPFormifyCommand(XMPPCommand *cmd)
{
    XMLElement *x, *field;
    size_t i;

    if (!cmd || !cmd->options)
    {
        return NULL;
    }

    x = XMLCreateTag("x");
    XMLAddAttr(x, "xmlns", "jabber:x:data");
    XMLAddAttr(x, "type", "form");
    /* TODO: Other fields */

    for (i = 0; i < ArraySize(cmd->options); i++)
    {
        XMPPOption *opt = ArrayGet(cmd->options, i);
        field = XMPPOptionToXML(opt);

        XMLAddChild(x, field);
    }

    return x;
}
char *
XMPPGetCommandNode(XMPPCommand *cmd)
{
    return cmd ? cmd->node : NULL;
}
char *
XMPPGetCommandDesc(XMPPCommand *cmd)
{
    return cmd ? cmd->name : NULL;
}
bool
XMPPCommandRequiresForm(XMPPCommand *cmd)
{
    return cmd ? !!cmd->options : false;
}
void 
XMPPExecuteCommand(XMPPCommandManager *m, XMPPCommand *cmd, XMLElement *to, HashMap *arg_table)
{
    if (!m || !cmd || !to)
    {
        return;
    }
    cmd->callback(m, arg_table, to);

    /* TODO Free arg_table's strings */
    HashMapFree(arg_table);
}