apogee/src/ap/object.h

#pragma once

#include "json/layout.h"

#include "object/context.h"
#include "object/tag.h"

#include <time.h>

// Reference: https://www.w3.org/TR/activitystreams-vocabulary/
// TODO: rename this to ap_object, as this is really an Object base and not an Activity base
struct ap_object;
#define ap_activity ap_object

struct ap_activity_source
{
	char* mime_type;
	char* content;

	// TODO: add map;
};

enum ap_signature_type
{
	apst_rsa_signature_2017 = 1,
};

struct ap_signature
{
	int type;
	char* creator;
	time_t created;
	char* value;
};

enum ap_object_type
{
	// Activity Types
	ap_Undo = 1,
	ap_Follow = 2,
	ap_Delete = 3,
	ap_Accept = 4,
	ap_Create = 5,
	ap_TentativeAccept = 6,
	ap_Add = 7,
	ap_Arrive = 8,
	ap_Ignore = 9,
	ap_Join = 10,
	ap_Leave = 11,
	ap_Like = 12,
	ap_Offer = 13,
	ap_Invite = 14,
	ap_Reject = 15,
	ap_TentativeReject = 16,
	ap_Remove = 17,
	ap_Update = 18,
	ap_View = 19,
	ap_Listen = 20,
	ap_Read = 21,
	ap_Move = 22,
	ap_Travel = 23,
	ap_Announce = 24,
	ap_Block = 25,
	ap_Flag = 26,
	ap_Dislike = 27,

	// Object Types
	ap_Note = 100,
	ap_Question = 101,
	ap_Article = 102,
	ap_Audio = 103,
	ap_Document = 104,
	ap_Event = 105,
	ap_Image = 106,
	ap_Page = 107,
	ap_Place = 108,
	ap_Profile = 109,
	ap_Relationship = 110,
	ap_Tombstone = 111,
	ap_Video = 112,

	// Actor Types
	ap_Person = 200,
	ap_Service = 201,
	ap_Application = 202,
	ap_Group = 203,
	ap_Organization = 204,

	// Collection Types
	ap_OrderedCollection = 301,
	ap_OrderedCollectionPage = 302,
	ap_Collection = 303,
	ap_CollectionPage = 304,

	/// Pleroma Types
	pleroma_EmojiReact = 28,

	/// Musicbox Types
	mb_Track = 501,
	mb_Album = 502,

	/// Forge Types (https://forgefed.org/vocabulary.html)
	forge_Grant = 601,
	forge_Push = 602,
	forge_Repository = 603,
	forge_TicketTracker = 604,
	forge_PatchTracker = 605,
	forge_Project = 606,
	forge_Team = 607,
	forge_Branch = 608,
	forge_Commit = 609,
	forge_TicketDependency = 610,
	forge_Ticket = 611,

	/// Schema.org types
	schema_PropertyValue = 401,	// https://schema.org/PropertyValue
};
extern struct json_enum ap_object_type_enum[];

enum ap_activity_object_type {
	apaot_ref = 1,
	apaot_activity = 2,
	apaot_object = 2,
};

struct ap_attachment
{
	int type;
	char* mediaType;
	char* name;
	char* url;
	char* value;
};
void ap_attachment_free( struct ap_attachment* a );
extern struct json_field_type ap_attachment_type;

struct ap_object_ptr_or_ref
{
	int tag;
	union {
		char* ref;
		struct ap_object* ptr;
	};
};
struct ap_public_key
{
	char* id;
	char* owner;
	char* public_key;
};
void ap_object_ptr_or_ref_free( struct ap_object_ptr_or_ref* oor );
void ap_object_ptr_or_ref_free_composite( struct ap_object_ptr_or_ref* oor );

struct ap_object
{
	struct ap_activity_context ap_context;

	char* id;
	char* actor;
	char* name;
	int local_id;
	int type;

	// Actor-specific fields
	char* inbox;
	char* outbox;
	char* preferred_username;
	char* url;
	struct {
		char* shared_inbox;
	} endpoints;
	char* featured;
	char* followers;
	char* following;
	struct {
		bool show;
		bool accepts_chat_messages;
	} capabilities;
	char* avatar;
	char* banner;
	bool discoverable;
	bool manually_approves_followers;
	struct ap_public_key* public_key;

	char* context;
	int context_id;

	bool direct_message;

	char* attributed_to;
	char* target;
	char* in_reply_to;

	struct ap_activity_source content;

	char* conversation;
	time_t published;
	struct ap_activity_source source;

	char* summary;

	bool sensitive;

	struct {
		struct ap_activity_tag** items;
		int count;
	} tags;

	struct {
		struct ap_attachment** items;
		int count;
	} attachments;

	struct {
		char** items;
		int count;
	} also_known_as;

	struct {
		struct ap_object_ptr_or_ref* items;
		int count;
	} collection_items;

	struct {
		char** items;
		int count;
	} to, cc, bcc;

	struct ap_object_ptr_or_ref object;

	char* state;

	int has_signature;
	struct ap_signature signature;

	// Collection fields
	struct ap_object_ptr_or_ref first;
	char* next;
	char* prev;
	char* part_of;
	int total_items;
};

struct json_object_field;
extern struct json_field_type ap_object_type;
extern struct json_object_field ap_object_layout[];

struct ap_object* ap_activity_new();
struct ap_object* ap_activity_dup( struct ap_object* o );
struct ap_object* ap_object_from_FILE( FILE* f );
struct ap_object* ap_object_from_file( const char* filename );
void ap_object_free( struct ap_object* o );
void ap_activity_free_composite( struct ap_object* o );

void ap_object_write_to_FILE( struct ap_object* o, FILE* f );