#ifndef PARSEE_EXTENSION_H
#define PARSEE_EXTENSION_H

#include <stdbool.h>

#include <Cytoplasm/Json.h>

#include <XML.h>

typedef struct ParseeData ParseeData;

typedef struct Extensions Extensions;
typedef struct Extension Extension;

typedef enum StanzaType {
    STANZA_RAW          = 0,
    STANZA_MESSAGE      = 1,
    STANZA_IQ           = 2,
    STANZA_PRESENCE     = 3,

    STANZA_TYPE_COUNT
} StanzaType;

/** Verifies if extensions are enabled with the Parsee binary.
 * Functions here <strong>WILL</strong> fail if this function 
 * returns false!
 * -------------------
 * Returns: true IFF extensions are enabled */
extern bool ExtensionEnabled(void);

/* Creates an extension context. */
extern Extensions * ExtensionCreateContext(struct ParseeData *data);

/** Destroys the entire extension context, and all of its extensions.
 * -------------------------------------
 * Returns: NOTHING
 * Thrashes: ctx */
extern void ExtensionDestroyContext(Extensions *ctx);

/** Loads a basic extension from a simple Janet file.
 * ---------------------------- 
 * Returns: An extension handle[ctx] | NULL */
extern Extension * ExtensionLoadBasic(Extensions *ctx, char *id, char *file);

/** Reloads an extension from an ID.
 * ---------------------------
 * Returns: NOTHING */
extern void ExtensionReload(Extensions *ctx, char *id);

/** Loads extensions from a directory. The directory's Janet files are loaded 
 * (with the part before the .janet extension denoting the identifier).
 * -----------------------------------
 * Returns: NOTHING */
extern void ExtensionLoadDir(Extensions *ctx, char *dir);

/** Broadcasts a stanza received to all extensions(by calling the 
 * on-stanza function).
 * -----------------------------------------
 * Returns: NOTHING
 * Modifies: the extensions */
extern bool ExtensionPushStanza(Extensions *ctx, XMLElement *stanza, StanzaType t);

/** Broadcasts a Matrix event to all extensions, akin to ExtensionPushStanza.
 * -----------
 * Returns: NOTHING
 * Modifies: the extensions */
extern bool ExtensionPushEvent(Extensions *ctx, HashMap *obj);

/** Calls "on-xmpp-cmd" on extensions' Janet side, with no arguments.
 * ----------
 * Returns: NOTHING
 * Modifies: the extensions */
extern void ExtensionRequestCommands(Extensions *ctx);

extern void 
ExtensionShoveCommands(Extensions *ctx, char *jid, XMLElement *query, XMLElement *stanza);

extern void 
ExtensionManageCommands(Extensions *ctx, XMLElement *stanza);

#endif