[ADD/WIP] Congestion, basic ad-hoc commands

Woah, took me a while, eh? Next up, getting forms!

src/XMPPCommand/Commands.c

@@ -0,0 +1,121 @@
+#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);
+}