#include "outbox_envelope.h"

#include "json/layout.h"
#include "ffdb/fs_list.h"

#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>

#define OBJ_TYPE struct outbox_envelope
static struct json_object_field layout[] = {
	JSON_FIELD_STRING( shared_inbox, false ),
	JSON_FIELD_BOOL( sent, false ),
	JSON_FIELD_INTEGER( retries, false ),
	JSON_FIELD_DATETIME( retry_after, false ),
	{
		.key = "account",
		.offset = offsetof( struct outbox_envelope, account_id ),
		.required = true,
		.type = &json_field_integer
	},
	{
		.key = "activity",
		.offset = offsetof( struct outbox_envelope, activity_id ),
		.required = true,
		.type = &json_field_integer
	},
	JSON_FIELD_END
};
#undef OBJ_TYPE

struct outbox_envelope* outbox_envelope_new()
{
	struct outbox_envelope* env;

	env = malloc(sizeof(*env));
	if( !env ) { return NULL; }
	memset(env,0,sizeof(*env));

	return env;
}
void outbox_envelope_free( struct outbox_envelope* env )
{
	if( !env ) { return; }
	free(env->shared_inbox);
	free(env);
}

void outbox_envelope_save( struct outbox_envelope* env )
{
	if( env->id == 0 ) {
		int id = fs_list_get( "data/outbox/HEAD" ) + 1;
		fs_list_set( "data/outbox/HEAD", id );
		env->id = id;
	}

	char filename[512];
	snprintf( filename, sizeof(filename), "data/outbox/%d.json", env->id );

	json_write_object_layout_to_file( filename, "\t", layout, env );
}
struct outbox_envelope* outbox_envelope_from_id( int id )
{
	struct outbox_envelope* env;

	if( !( env = outbox_envelope_new()) ) { return NULL; }

	env->id = id;

	char filename[512];
	snprintf( filename, sizeof(filename), "data/outbox/%d.json", id );

	if( !json_read_object_layout_from_file( filename, layout, env ) ) {
		outbox_envelope_free( env );
		return NULL;
	}

	return env;
}

struct outbox_envelope* outbox_envelope_load_next()
{
	return outbox_envelope_from_id( fs_list_get( "data/outbox/TAIL" ) + 1 );
}

void outbox_envelope_delete( struct outbox_envelope* env )
{
	char filename[512];
	snprintf( filename, sizeof(filename), "data/outbox/%d.json", env->id );

	remove(filename);

	outbox_envelope_free(env);
}

void outbox_envelope_list_save( struct outbox_envelope_list* oel )
{
	for( int i = 0; i < oel->count; ++i ) {
		outbox_envelope_save(oel->items[i]);
	}
}
void outbox_envelope_list_free_composite( struct outbox_envelope_list* oel )
{
	for( int i = 0; i < oel->count; ++i ) {
		free(oel->items[i]);
	}
	free(oel->items);
}