#include "ssb.h"

#include "log.h"
#include "mem.h"
#include "ssb.db.h"
#include "ssb.js.h"
#include "tests.h"
#include "trace.h"
#include "util.js.h"

#include "uv.h"

#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#if !defined(_WIN32)
#include <sys/wait.h>
#endif

#if defined(_WIN32)
#define WIFEXITED(x) 1
#define WEXITSTATUS(x) (x)
#endif

void tf_ssb_test_id_conversion(const tf_test_options_t* options)
{
	tf_printf("Testing id conversion.\n");
	uint8_t bin[k_id_bin_len] = { 0 };
	char str[k_id_base64_len] = { 0 };
	const char* k_id = "@bzRTe6hgOII2yZ1keGGoNoQgostjQc830trHc453crY=.ed25519";
	(void)bin;
	(void)str;
	(void)k_id;
	bool b = tf_ssb_id_str_to_bin(bin, k_id);
	(void)b;
	assert(b);
	b = tf_ssb_id_bin_to_str(str, sizeof(str), bin);
	assert(b);
	b = strcmp(str, k_id) == 0;
	assert(b);
}

typedef struct _test_t
{
	tf_ssb_t* ssb0;
	tf_ssb_t* ssb1;
	tf_ssb_t* ssb2;
	int connection_count0;
	int connection_count1;
	int connection_count2;
	int broadcast_count0;
	int broadcast_count1;
	int broadcast_count2;
} test_t;

static void _ssb_test_connections_changed(tf_ssb_t* ssb, tf_ssb_change_t change, tf_ssb_connection_t* connection, void* user_data)
{
	test_t* test = user_data;

	int count = 0;
	const char** c = tf_ssb_get_connection_ids(ssb);
	for (const char** p = c; *p; p++)
	{
		count++;
	}
	tf_free(c);

	if (ssb == test->ssb0)
	{
		tf_printf("callback0 change=%d connection=%p\n", change, connection);
		test->connection_count0 = count;
	}
	else if (ssb == test->ssb1)
	{
		tf_printf("callback1 change=%d connection=%p\n", change, connection);
		test->connection_count1 = count;
	}
	else if (ssb == test->ssb2)
	{
		tf_printf("callback2 change=%d connection=%p\n", change, connection);
		test->connection_count2 = count;
	}
	tf_printf("conns = %d %d %d\n", test->connection_count0, test->connection_count1, test->connection_count2);
}

typedef struct _count_messages_t
{
	tf_ssb_t* ssb;
	int count;
} count_messages_t;

static void _count_messages_callback(JSValue row, void* user_data)
{
	count_messages_t* count = user_data;
	JSContext* context = tf_ssb_get_context(count->ssb);
	JS_ToInt32(context, &count->count, JS_GetPropertyStr(context, row, "count"));
}

static int _ssb_test_count_messages(tf_ssb_t* ssb)
{
	count_messages_t count = { .ssb = ssb };
	tf_ssb_db_visit_query(ssb, "SELECT COUNT(*) AS count FROM messages", JS_UNDEFINED, _count_messages_callback, &count);
	return count.count;
}

static void _message_added(tf_ssb_t* ssb, const char* id, void* user_data)
{
	++*(int*)user_data;
}

static void _ssb_test_idle(uv_idle_t* idle)
{
	tf_ssb_t* ssb = idle->data;
	JSRuntime* runtime = JS_GetRuntime(tf_ssb_get_context(ssb));
	while (JS_IsJobPending(runtime))
	{
		JSContext* context = NULL;
		int r = JS_ExecutePendingJob(runtime, &context);
		JSValue result = JS_GetException(context);
		if (context)
		{
			tf_util_report_error(context, result);
		}
		if (r == 0)
		{
			break;
		}
	}
}

static void _message_stored(const char* id, bool verified, bool is_new, void* user_data)
{
	*(bool*)user_data = true;
}

static void _wait_stored(tf_ssb_t* ssb, bool* stored)
{
	while (!*stored)
	{
		uv_run(tf_ssb_get_loop(ssb), UV_RUN_ONCE);
	}
}

void tf_ssb_test_ssb(const tf_test_options_t* options)
{
	tf_printf("Testing SSB.\n");

	uv_loop_t loop = { 0 };
	uv_loop_init(&loop);

	unlink("out/test_db0.sqlite");
	tf_ssb_t* ssb0 = tf_ssb_create(&loop, NULL, "file:out/test_db0.sqlite", NULL);
	tf_ssb_register(tf_ssb_get_context(ssb0), ssb0);
	unlink("out/test_db1.sqlite");
	tf_ssb_t* ssb1 = tf_ssb_create(&loop, NULL, "file:out/test_db1.sqlite", NULL);
	tf_ssb_register(tf_ssb_get_context(ssb1), ssb1);

	uv_idle_t idle0 = { .data = ssb0 };
	uv_idle_init(&loop, &idle0);
	uv_idle_start(&idle0, _ssb_test_idle);

	uv_idle_t idle1 = { .data = ssb1 };
	uv_idle_init(&loop, &idle1);
	uv_idle_start(&idle1, _ssb_test_idle);

	test_t test = {
		.ssb0 = ssb0,
		.ssb1 = ssb1,
	};

	tf_ssb_add_connections_changed_callback(ssb0, _ssb_test_connections_changed, NULL, &test);
	tf_ssb_add_connections_changed_callback(ssb1, _ssb_test_connections_changed, NULL, &test);

	tf_ssb_generate_keys(ssb0);
	tf_ssb_generate_keys(ssb1);

	uint8_t priv0[512] = { 0 };
	uint8_t priv1[512] = { 0 };
	tf_ssb_get_private_key(ssb0, priv0, sizeof(priv0));
	tf_ssb_get_private_key(ssb1, priv1, sizeof(priv1));

	char id0[k_id_base64_len] = { 0 };
	char id1[k_id_base64_len] = { 0 };
	bool b = tf_ssb_whoami(ssb0, id0, sizeof(id0));
	(void)b;
	assert(b);
	b = tf_ssb_whoami(ssb1, id1, sizeof(id1));
	assert(b);
	tf_printf("ID %s and %s\n", id0, id1);

	char blob_id[k_id_base64_len] = { 0 };
	const char* k_blob = "Hello, blob!";
	b = tf_ssb_db_blob_store(ssb0, (const uint8_t*)k_blob, strlen(k_blob), blob_id, sizeof(blob_id), NULL);
	assert(b);

	JSContext* context0 = tf_ssb_get_context(ssb0);
	JSValue obj = JS_NewObject(context0);
	JS_SetPropertyStr(context0, obj, "type", JS_NewString(context0, "post"));
	JS_SetPropertyStr(context0, obj, "text", JS_NewString(context0, "Hello, world!"));
	bool stored = false;
	JSValue signed_message = tf_ssb_sign_message(ssb0, id0, priv0, obj, NULL, 0);
	tf_ssb_verify_strip_and_store_message(ssb0, signed_message, _message_stored, &stored);
	JS_FreeValue(context0, signed_message);
	_wait_stored(ssb0, &stored);
	JS_FreeValue(context0, obj);

	obj = JS_NewObject(context0);
	JS_SetPropertyStr(context0, obj, "type", JS_NewString(context0, "post"));
	JS_SetPropertyStr(context0, obj, "text", JS_NewString(context0, "First post."));
	stored = false;
	signed_message = tf_ssb_sign_message(ssb0, id0, priv0, obj, NULL, 0);
	tf_ssb_verify_strip_and_store_message(ssb0, signed_message, _message_stored, &stored);
	JS_FreeValue(context0, signed_message);
	_wait_stored(ssb0, &stored);
	JS_FreeValue(context0, obj);

	obj = JS_NewObject(context0);
	JS_SetPropertyStr(context0, obj, "type", JS_NewString(context0, "post"));
	JS_SetPropertyStr(context0, obj, "text", JS_NewString(context0, "First post."));
	JSValue mentions = JS_NewArray(context0);
	JSValue mention = JS_NewObject(context0);
	JS_SetPropertyStr(context0, mention, "link", JS_NewString(context0, blob_id));
	JS_SetPropertyUint32(context0, mentions, 0, mention);
	JS_SetPropertyStr(context0, obj, "mentions", mentions);
	stored = false;
	signed_message = tf_ssb_sign_message(ssb0, id0, priv0, obj, NULL, 0);
	tf_ssb_verify_strip_and_store_message(ssb0, signed_message, _message_stored, &stored);
	JS_FreeValue(context0, signed_message);
	_wait_stored(ssb0, &stored);
	JS_FreeValue(context0, obj);

	uint8_t* b0;
	size_t s0 = 0;
	b = tf_ssb_db_blob_get(ssb0, blob_id, &b0, &s0);
	assert(b);
	assert(s0 == strlen(k_blob));
	assert(memcmp(b0, k_blob, strlen(k_blob)) == 0);
	tf_free(b0);
	b = !tf_ssb_db_blob_get(ssb1, blob_id, NULL, NULL);
	assert(b);
	tf_ssb_server_open(ssb0, 12347);

	uint8_t id0bin[k_id_bin_len];
	tf_ssb_id_str_to_bin(id0bin, id0);
	tf_ssb_connect(ssb1, "127.0.0.1", 12347, id0bin);

	tf_printf("Waiting for connection.\n");
	while (test.connection_count0 != 1 || test.connection_count1 != 1)
	{
		tf_ssb_set_main_thread(ssb0, true);
		tf_ssb_set_main_thread(ssb1, true);
		uv_run(&loop, UV_RUN_ONCE);
		tf_ssb_set_main_thread(ssb0, false);
		tf_ssb_set_main_thread(ssb1, false);
	}
	tf_ssb_server_close(ssb0);

	tf_printf("Waiting for messages.\n");
	while (_ssb_test_count_messages(ssb1) < 3)
	{
		tf_ssb_set_main_thread(ssb0, true);
		tf_ssb_set_main_thread(ssb1, true);
		uv_run(&loop, UV_RUN_ONCE);
		tf_ssb_set_main_thread(ssb0, false);
		tf_ssb_set_main_thread(ssb1, false);
	}

	tf_printf("Waiting for blob.\n");
	while (!tf_ssb_db_blob_get(ssb1, blob_id, NULL, NULL))
	{
		tf_ssb_set_main_thread(ssb0, true);
		tf_ssb_set_main_thread(ssb1, true);
		uv_run(&loop, UV_RUN_ONCE);
		tf_ssb_set_main_thread(ssb0, false);
		tf_ssb_set_main_thread(ssb1, false);
	}

	JSContext* context = tf_ssb_get_context(ssb1);
	JSValue message = JS_NewObject(context);
	JSValue name = JS_NewArray(context);
	JS_SetPropertyUint32(context, name, 0, JS_NewString(context, "blobs"));
	JS_SetPropertyUint32(context, name, 1, JS_NewString(context, "has"));
	JS_SetPropertyStr(context, message, "name", name);
	JSValue args = JS_NewArray(context);
	JS_SetPropertyUint32(context, args, 0, JS_NewString(context, blob_id));
	JS_SetPropertyStr(context, message, "args", args);
	JS_SetPropertyStr(context, message, "type", JS_NewString(context, "async"));

	tf_ssb_connection_t* connections[4] = { 0 };
	tf_ssb_get_connections(ssb1, connections, 4);
	int64_t request_number = tf_ssb_connection_next_request_number(connections[0]);
	tf_ssb_connection_rpc_send_json(connections[0], k_ssb_rpc_flag_stream | k_ssb_rpc_flag_new_request, request_number, "blobs.has", message, NULL, NULL, NULL);
	JS_FreeValue(context, message);

	uint8_t* b1;
	size_t s1 = 0;
	b = tf_ssb_db_blob_get(ssb1, blob_id, &b1, &s1);
	assert(b);
	tf_printf("s1 = %zd sl = %zd\n", s1, strlen(k_blob));
	assert(s1 == strlen(k_blob));
	assert(memcmp(b1, k_blob, strlen(k_blob)) == 0);
	tf_free(b1);

	tf_printf("Waiting for message to self.\n");
	int count0 = 0;
	int count1 = 0;
	tf_ssb_add_message_added_callback(ssb0, _message_added, NULL, &count0);
	tf_ssb_add_message_added_callback(ssb1, _message_added, NULL, &count1);

	obj = JS_NewObject(context0);
	JS_SetPropertyStr(context0, obj, "type", JS_NewString(context0, "post"));
	JS_SetPropertyStr(context0, obj, "text", JS_NewString(context0, "Message to self."));
	stored = false;
	signed_message = tf_ssb_sign_message(ssb0, id0, priv0, obj, NULL, 0);
	tf_ssb_verify_strip_and_store_message(ssb0, signed_message, _message_stored, &stored);
	JS_FreeValue(context0, signed_message);
	_wait_stored(ssb0, &stored);
	JS_FreeValue(context0, obj);

	while (count0 == 0)
	{
		tf_ssb_set_main_thread(ssb0, true);
		tf_ssb_set_main_thread(ssb1, true);
		uv_run(&loop, UV_RUN_ONCE);
		tf_ssb_set_main_thread(ssb0, false);
		tf_ssb_set_main_thread(ssb1, false);
	}
	tf_ssb_remove_message_added_callback(ssb0, _message_added, &count0);

	tf_printf("Waiting for message from other.\n");
	while (count1 == 0)
	{
		tf_ssb_set_main_thread(ssb0, true);
		tf_ssb_set_main_thread(ssb1, true);
		uv_run(&loop, UV_RUN_ONCE);
		tf_ssb_set_main_thread(ssb0, false);
		tf_ssb_set_main_thread(ssb1, false);
	}
	tf_ssb_remove_message_added_callback(ssb1, _message_added, &count1);
	tf_printf("done\n");

	tf_ssb_send_close(ssb1);

	uv_close((uv_handle_t*)&idle0, NULL);
	uv_close((uv_handle_t*)&idle1, NULL);

	tf_printf("final run\n");
	tf_ssb_set_main_thread(ssb0, true);
	tf_ssb_set_main_thread(ssb1, true);
	uv_run(&loop, UV_RUN_DEFAULT);
	tf_ssb_set_main_thread(ssb0, false);
	tf_ssb_set_main_thread(ssb1, false);
	tf_printf("done\n");

	tf_printf("destroy 0\n");
	tf_ssb_destroy(ssb0);
	tf_printf("destroy 1\n");
	tf_ssb_destroy(ssb1);

	tf_printf("close\n");
	uv_loop_close(&loop);
}

static void _broadcasts_visit(const char* host, const struct sockaddr_in* addr, tf_ssb_broadcast_origin_t origin, tf_ssb_connection_t* tunnel, const uint8_t* pub, void* user_data)
{
	int* count = user_data;
	(*count)++;
}

static void _broadcasts_changed(tf_ssb_t* ssb, void* user_data)
{
	int* count = NULL;
	test_t* test = user_data;
	if (ssb == test->ssb0)
	{
		count = &test->broadcast_count0;
	}
	else if (ssb == test->ssb1)
	{
		count = &test->broadcast_count1;
	}
	else if (ssb == test->ssb2)
	{
		count = &test->broadcast_count2;
	}
	if (count)
	{
		*count = 0;
	}
	tf_ssb_visit_broadcasts(ssb, _broadcasts_visit, count);
	tf_printf("BROADCASTS %d %d %d\n", test->broadcast_count0, test->broadcast_count1, test->broadcast_count2);
}

void tf_ssb_test_rooms(const tf_test_options_t* options)
{
	tf_printf("Testing Rooms.\n");

	uv_loop_t loop = { 0 };
	uv_loop_init(&loop);

	unlink("out/test_db0.sqlite");
	tf_ssb_t* ssb0 = tf_ssb_create(&loop, NULL, "file:out/test_db0.sqlite", NULL);
	tf_ssb_register(tf_ssb_get_context(ssb0), ssb0);
	unlink("out/test_db1.sqlite");
	tf_ssb_t* ssb1 = tf_ssb_create(&loop, NULL, "file:out/test_db1.sqlite", NULL);
	tf_ssb_register(tf_ssb_get_context(ssb1), ssb1);
	unlink("out/test_db2.sqlite");
	tf_ssb_t* ssb2 = tf_ssb_create(&loop, NULL, "file:out/test_db2.sqlite", NULL);
	tf_ssb_register(tf_ssb_get_context(ssb2), ssb2);

	uv_idle_t idle0 = { .data = ssb0 };
	uv_idle_init(&loop, &idle0);
	uv_idle_start(&idle0, _ssb_test_idle);

	uv_idle_t idle1 = { .data = ssb1 };
	uv_idle_init(&loop, &idle1);
	uv_idle_start(&idle1, _ssb_test_idle);

	uv_idle_t idle2 = { .data = ssb2 };
	uv_idle_init(&loop, &idle2);
	uv_idle_start(&idle2, _ssb_test_idle);

	test_t test = {
		.ssb0 = ssb0,
		.ssb1 = ssb1,
		.ssb2 = ssb2,
	};

	tf_ssb_add_connections_changed_callback(ssb0, _ssb_test_connections_changed, NULL, &test);
	tf_ssb_add_connections_changed_callback(ssb1, _ssb_test_connections_changed, NULL, &test);
	tf_ssb_add_connections_changed_callback(ssb2, _ssb_test_connections_changed, NULL, &test);

	tf_ssb_add_broadcasts_changed_callback(ssb0, _broadcasts_changed, NULL, &test);
	tf_ssb_add_broadcasts_changed_callback(ssb1, _broadcasts_changed, NULL, &test);
	tf_ssb_add_broadcasts_changed_callback(ssb2, _broadcasts_changed, NULL, &test);

	tf_ssb_generate_keys(ssb0);
	tf_ssb_generate_keys(ssb1);
	tf_ssb_generate_keys(ssb2);

	char id0[k_id_base64_len] = { 0 };
	char id1[k_id_base64_len] = { 0 };
	char id2[k_id_base64_len] = { 0 };
	bool b = tf_ssb_whoami(ssb0, id0, sizeof(id0));
	(void)b;
	assert(b);
	b = tf_ssb_whoami(ssb1, id1, sizeof(id1));
	assert(b);
	b = tf_ssb_whoami(ssb2, id2, sizeof(id2));
	assert(b);
	tf_printf("ID %s, %s, %s\n", id0, id1, id2);

	tf_ssb_server_open(ssb0, 12347);

	uint8_t id0bin[k_id_bin_len];
	tf_ssb_id_str_to_bin(id0bin, id0);
	tf_ssb_connect(ssb1, "127.0.0.1", 12347, id0bin);
	tf_ssb_connect(ssb2, "127.0.0.1", 12347, id0bin);

	tf_printf("Waiting for connection.\n");
	while (test.connection_count0 != 2 || test.connection_count1 != 1 || test.connection_count2 != 1)
	{
		uv_run(&loop, UV_RUN_ONCE);
	}
	tf_ssb_server_close(ssb0);

	tf_printf("Waiting for broadcasts.\n");
	while (test.broadcast_count1 != 1 || test.broadcast_count2 != 1)
	{
		uv_run(&loop, UV_RUN_ONCE);
	}

	tf_ssb_connection_t* connections[4];
	int count = tf_ssb_get_connections(ssb1, connections, 4);
	(void)count;
	assert(count == 1);

	int32_t tunnel_request_number = tf_ssb_connection_next_request_number(connections[0]);

	JSContext* context = tf_ssb_get_context(ssb1);
	JSValue message = JS_NewObject(context);
	JSValue name = JS_NewArray(context);
	JS_SetPropertyUint32(context, name, 0, JS_NewString(context, "tunnel"));
	JS_SetPropertyUint32(context, name, 1, JS_NewString(context, "connect"));
	JS_SetPropertyStr(context, message, "name", name);
	JSValue args = JS_NewArray(context);
	JSValue arg = JS_NewObject(context);
	JS_SetPropertyStr(context, arg, "portal", JS_NewString(context, id0));
	JS_SetPropertyStr(context, arg, "target", JS_NewString(context, id2));
	JS_SetPropertyUint32(context, args, 0, arg);
	JS_SetPropertyStr(context, message, "args", args);
	JS_SetPropertyStr(context, message, "type", JS_NewString(context, "duplex"));

	tf_ssb_connection_rpc_send_json(connections[0], k_ssb_rpc_flag_stream | k_ssb_rpc_flag_new_request, tunnel_request_number, "tunnel.connect", message, NULL, NULL, NULL);
	JS_FreeValue(context, message);

	tf_ssb_connection_t* tun0 = tf_ssb_connection_tunnel_create(ssb1, id0, tunnel_request_number, id2);
	tf_printf("tun0 = %p\n", tun0);

	tf_printf("Done.\n");

	while (test.connection_count0 != 2 || test.connection_count1 != 2 || test.connection_count2 != 2)
	{
		uv_run(&loop, UV_RUN_ONCE);
	}

	tf_printf("Done.\n");

	uv_run(&loop, UV_RUN_NOWAIT);

	tf_ssb_connection_close(tun0);

	uv_run(&loop, UV_RUN_NOWAIT);

	uv_close((uv_handle_t*)&idle0, NULL);
	uv_close((uv_handle_t*)&idle1, NULL);
	uv_close((uv_handle_t*)&idle2, NULL);

	tf_ssb_send_close(ssb0);
	tf_ssb_send_close(ssb1);
	tf_ssb_send_close(ssb2);

	tf_ssb_close_all(ssb0);
	tf_ssb_close_all(ssb1);
	tf_ssb_close_all(ssb2);

	uv_run(&loop, UV_RUN_DEFAULT);

	tf_ssb_destroy(ssb0);
	tf_ssb_destroy(ssb1);
	tf_ssb_destroy(ssb2);

	uv_run(&loop, UV_RUN_DEFAULT);

	uv_loop_close(&loop);
}

static void _assert_visible(tf_ssb_t* ssb, const char* id, const char* contact, bool visible)
{
	const char** ids = tf_ssb_db_following_deep_ids(ssb, &id, 1, 2);
	bool found = false;
	(void)found;
	for (int i = 0; ids[i]; i++)
	{
		if (strcmp(ids[i], contact) == 0)
		{
			found = true;
			break;
		}
	}
	tf_free(ids);
	assert(found == visible);
}

void tf_ssb_test_following(const tf_test_options_t* options)
{
	tf_printf("Testing following.\n");

	uv_loop_t loop = { 0 };
	uv_loop_init(&loop);

	unlink("out/test_db0.sqlite");
	tf_ssb_t* ssb0 = tf_ssb_create(&loop, NULL, "file:out/test_db0.sqlite", NULL);
	tf_ssb_generate_keys(ssb0);

	char id0[k_id_base64_len] = { "@" };
	char id1[k_id_base64_len] = { "@" };
	char id2[k_id_base64_len] = { "@" };
	char id3[k_id_base64_len] = { "@" };
	char priv0b[512] = { 0 };
	char priv1b[512] = { 0 };
	char priv2b[512] = { 0 };
	char priv3b[512] = { 0 };
	uint8_t priv0[512] = { 0 };
	uint8_t priv1[512] = { 0 };
	uint8_t priv2[512] = { 0 };
	uint8_t priv3[512] = { 0 };

	tf_ssb_generate_keys_buffer(id0 + 1, sizeof(id0) - 1, priv0b, sizeof(priv0b));
	tf_ssb_generate_keys_buffer(id1 + 1, sizeof(id1) - 1, priv1b, sizeof(priv1b));
	tf_ssb_generate_keys_buffer(id2 + 1, sizeof(id2) - 1, priv2b, sizeof(priv2b));
	tf_ssb_generate_keys_buffer(id3 + 1, sizeof(id3) - 1, priv3b, sizeof(priv3b));
	tf_base64_decode(priv0b, strlen(priv0b), priv0, sizeof(priv0));
	tf_base64_decode(priv1b, strlen(priv1b), priv1, sizeof(priv1));
	tf_base64_decode(priv2b, strlen(priv2b), priv2, sizeof(priv2));
	tf_base64_decode(priv3b, strlen(priv3b), priv3, sizeof(priv3));

	JSContext* context = tf_ssb_get_context(ssb0);
	JSValue message;
	JSValue signed_message;
	bool stored;

#define FOLLOW_BLOCK(id, priv, contact, follow, block) \
	message = JS_NewObject(context); \
	JS_SetPropertyStr(context, message, "type", JS_NewString(context, "contact")); \
	JS_SetPropertyStr(context, message, "contact", JS_NewString(context, contact)); \
	JS_SetPropertyStr(context, message, "following", follow ? JS_TRUE : JS_FALSE); \
	JS_SetPropertyStr(context, message, "blocking", block ? JS_TRUE : JS_FALSE); \
	signed_message = tf_ssb_sign_message(ssb0, id, priv, message, NULL, 0); \
	stored = false; \
	tf_ssb_verify_strip_and_store_message(ssb0, signed_message, _message_stored, &stored); \
	_wait_stored(ssb0, &stored); \
	JS_FreeValue(context, signed_message); \
	JS_FreeValue(context, message);

	FOLLOW_BLOCK(id0, priv0, id1, true, false);
	FOLLOW_BLOCK(id1, priv1, id2, true, false);
	FOLLOW_BLOCK(id1, priv1, id3, true, false);
	_assert_visible(ssb0, id0, id0, true);
	_assert_visible(ssb0, id0, id1, true);
	_assert_visible(ssb0, id0, id2, true);
	_assert_visible(ssb0, id0, id3, true);
	FOLLOW_BLOCK(id0, priv0, id3, false, true);
	_assert_visible(ssb0, id0, id0, true);
	_assert_visible(ssb0, id0, id1, true);
	_assert_visible(ssb0, id0, id2, true);
	_assert_visible(ssb0, id0, id3, false);

#undef FOLLOW_BLOCK

	uv_run(&loop, UV_RUN_DEFAULT);

	tf_ssb_destroy(ssb0);

	uv_loop_close(&loop);
}

void tf_ssb_test_bench(const tf_test_options_t* options)
{
	tf_printf("Testing following.\n");

	uv_loop_t loop = { 0 };
	uv_loop_init(&loop);

	tf_trace_t* trace = tf_trace_create();

	unlink("out/test_db0.sqlite");
	tf_ssb_t* ssb0 = tf_ssb_create(&loop, NULL, "file:out/test_db0.sqlite", NULL);
	tf_ssb_set_trace(ssb0, trace);
	tf_ssb_generate_keys(ssb0);

	char id0[k_id_base64_len] = { 0 };
	tf_ssb_whoami(ssb0, id0, sizeof(id0));

	uint8_t priv0[512];
	tf_ssb_get_private_key(ssb0, priv0, sizeof(priv0));

	struct timespec start_time = { 0 };
	struct timespec end_time = { 0 };
	clock_gettime(CLOCK_REALTIME, &start_time);
	const int k_messages = 4096;
	JSValue obj = JS_NewObject(tf_ssb_get_context(ssb0));
	JS_SetPropertyStr(tf_ssb_get_context(ssb0), obj, "type", JS_NewString(tf_ssb_get_context(ssb0), "post"));
	JS_SetPropertyStr(tf_ssb_get_context(ssb0), obj, "text", JS_NewString(tf_ssb_get_context(ssb0), "Hello, world!"));
	for (int i = 0; i < k_messages; i++)
	{
		bool stored = false;
		JSValue signed_message = tf_ssb_sign_message(ssb0, id0, priv0, obj, NULL, 0);
		tf_ssb_verify_strip_and_store_message(ssb0, signed_message, _message_stored, &stored);
		JS_FreeValue(tf_ssb_get_context(ssb0), signed_message);
		_wait_stored(ssb0, &stored);
	}
	JS_FreeValue(tf_ssb_get_context(ssb0), obj);
	clock_gettime(CLOCK_REALTIME, &end_time);
	tf_printf("insert = %f seconds\n", (end_time.tv_sec - start_time.tv_sec) + (end_time.tv_nsec - start_time.tv_nsec) / 1e9);

	unlink("out/test_db1.sqlite");
	tf_ssb_t* ssb1 = tf_ssb_create(&loop, NULL, "file:out/test_db1.sqlite", NULL);
	tf_ssb_set_trace(ssb1, trace);
	tf_ssb_generate_keys(ssb1);
	uint8_t id0bin[k_id_bin_len];
	tf_ssb_id_str_to_bin(id0bin, id0);

	tf_ssb_set_main_thread(ssb0, true);
	tf_ssb_set_main_thread(ssb1, true);

	uv_idle_t idle0 = { .data = ssb0 };
	uv_idle_init(&loop, &idle0);
	uv_idle_start(&idle0, _ssb_test_idle);

	uv_idle_t idle1 = { .data = ssb1 };
	uv_idle_init(&loop, &idle1);
	uv_idle_start(&idle1, _ssb_test_idle);

	tf_ssb_register(tf_ssb_get_context(ssb0), ssb0);
	tf_ssb_register(tf_ssb_get_context(ssb1), ssb1);

	tf_ssb_server_open(ssb0, 12347);
	tf_ssb_connect(ssb1, "127.0.0.1", 12347, id0bin);

	tf_printf("Waiting for messages.\n");
	clock_gettime(CLOCK_REALTIME, &start_time);
	int count = 0;
	tf_ssb_add_message_added_callback(ssb1, _message_added, NULL, &count);
	while (count < k_messages)
	{
		uv_run(&loop, UV_RUN_ONCE);
	}
	tf_ssb_remove_message_added_callback(ssb1, _message_added, &count);
	clock_gettime(CLOCK_REALTIME, &end_time);

	tf_ssb_set_main_thread(ssb0, false);
	tf_ssb_set_main_thread(ssb1, false);
	count = _ssb_test_count_messages(ssb1);
	if (count < k_messages)
	{
		abort();
	}
	tf_printf("Done.\n");
	tf_printf("replicate = %f seconds\n", (end_time.tv_sec - start_time.tv_sec) + (end_time.tv_nsec - start_time.tv_nsec) / 1e9);

	tf_ssb_send_close(ssb1);
	tf_ssb_server_close(ssb0);

	uv_close((uv_handle_t*)&idle0, NULL);
	uv_close((uv_handle_t*)&idle1, NULL);

	uv_run(&loop, UV_RUN_DEFAULT);

	char* trace_data = tf_trace_export(trace);
	if (trace_data)
	{
		FILE* file = fopen("out/trace.json", "wb");
		if (file)
		{
			fwrite(trace_data, 1, strlen(trace_data), file);
			fclose(file);
		}
		tf_free(trace_data);
	}

	tf_ssb_destroy(ssb1);
	tf_ssb_destroy(ssb0);

	tf_trace_destroy(trace);

	uv_loop_close(&loop);
}

static void _ssb_test_room_connections_changed(tf_ssb_t* ssb, tf_ssb_change_t change, tf_ssb_connection_t* connection, void* user_data)
{
	const char* changes[] = { "create", "connect", "remove" };
	tf_printf("change=%s %p connection=%s:%d\n", changes[change], connection, tf_ssb_connection_get_host(connection), tf_ssb_connection_get_port(connection));
}

typedef struct _close_t
{
	tf_ssb_t* ssb;
	tf_ssb_connection_t* connection;
	uv_timer_t timer;
	int32_t request_number;
	char id[k_id_base64_len];
} close_t;

static void _timer_close(uv_handle_t* handle)
{
	tf_free(handle->data);
}

static void _close_callback(uv_timer_t* timer)
{
	close_t* data = timer->data;
	tf_printf("breaking %s %p\n", data->id, data->connection);
	const char* message = "{\"name\":\"Error\",\"message\":\"whoops\",\"stack\":\"nah\"}";
	tf_ssb_connection_rpc_send(data->connection, k_ssb_rpc_flag_stream | k_ssb_rpc_flag_json | k_ssb_rpc_flag_end_error, data->request_number, NULL, (const uint8_t*)message,
		strlen(message), NULL, NULL, NULL);
	uv_close((uv_handle_t*)timer, _timer_close);
}

static void _break_in_a_bit(tf_ssb_t* ssb, tf_ssb_connection_t* connection, const char* id, int32_t request_number)
{
	close_t* data = tf_malloc(sizeof(close_t));
	*data = (close_t)
	{
		.ssb = ssb,
		.connection = connection,
		.request_number = request_number,
		.timer =
		{
			.data = data,
		},
	};
	snprintf(data->id, sizeof(data->id), "%s", id);
	uv_timer_init(tf_ssb_get_loop(ssb), &data->timer);
	uv_timer_start(&data->timer, _close_callback, 3000, 0);
}

static void _ssb_test_room_broadcasts_visit(
	const char* host, const struct sockaddr_in* addr, tf_ssb_broadcast_origin_t origin, tf_ssb_connection_t* tunnel, const uint8_t* pub, void* user_data)
{
	tf_ssb_t* ssb = user_data;
	char id[k_id_base64_len] = { 0 };
	tf_ssb_id_bin_to_str(id, sizeof(id), pub);
	tf_ssb_connection_t* connections[8];
	if (tunnel && strcmp(id, "@Jqm63iKumgaWfUI6mXtmQCDHiQJhzMiEWXYUqtcGs9o=.ed25519") != 0 && tf_ssb_get_connections(ssb, connections, 8) == 1)
	{
		tf_printf("%s %p %s\n", host, tunnel, id);

		int32_t tunnel_request_number = tf_ssb_connection_next_request_number(tunnel);

		char portal[k_id_base64_len] = { 0 };
		char target[k_id_base64_len] = { 0 };
		tf_ssb_connection_get_id(tunnel, portal, sizeof(portal));
		tf_ssb_id_bin_to_str(target, sizeof(target), pub);

		JSContext* context = tf_ssb_get_context(ssb);
		JSValue message = JS_NewObject(context);
		JSValue name = JS_NewArray(context);
		JS_SetPropertyUint32(context, name, 0, JS_NewString(context, "tunnel"));
		JS_SetPropertyUint32(context, name, 1, JS_NewString(context, "connect"));
		JS_SetPropertyStr(context, message, "name", name);
		JSValue args = JS_NewArray(context);
		JSValue arg = JS_NewObject(context);
		JS_SetPropertyStr(context, arg, "portal", JS_NewString(context, portal));
		JS_SetPropertyStr(context, arg, "target", JS_NewString(context, target));
		JS_SetPropertyUint32(context, args, 0, arg);
		JS_SetPropertyStr(context, message, "args", args);
		JS_SetPropertyStr(context, message, "type", JS_NewString(context, "duplex"));

		tf_ssb_connection_rpc_send_json(tunnel, k_ssb_rpc_flag_stream | k_ssb_rpc_flag_new_request, tunnel_request_number, "tunnel.connect", message, NULL, NULL, NULL);
		JS_FreeValue(context, message);

		tf_printf("tunnel create ssb=%p portal=%s rn=%d target=%s\n", ssb, portal, (int)tunnel_request_number, target);
		tf_ssb_connection_tunnel_create(ssb, portal, tunnel_request_number, target);
		_break_in_a_bit(ssb, tunnel, target, tunnel_request_number);
	}
}

static void _ssb_test_room_broadcasts_changed(tf_ssb_t* ssb, void* user_data)
{
	tf_ssb_visit_broadcasts(ssb, _ssb_test_room_broadcasts_visit, ssb);
}

void tf_ssb_test_go_ssb_room(const tf_test_options_t* options)
{
	tf_printf("Testing go_ssb_room.\n");

	uv_loop_t loop = { 0 };
	uv_loop_init(&loop);

	tf_trace_t* trace = tf_trace_create();

	unlink("out/test_db0.sqlite");
	tf_ssb_t* ssb0 = tf_ssb_create(&loop, NULL, "file:out/test_db0.sqlite", NULL);
	tf_ssb_set_trace(ssb0, trace);
	tf_ssb_generate_keys(ssb0);

	unlink("out/test_db1.sqlite");
	tf_ssb_t* ssb1 = tf_ssb_create(&loop, NULL, "file:out/test_db1.sqlite", NULL);
	tf_ssb_set_trace(ssb1, trace);
	tf_ssb_generate_keys(ssb1);

	tf_ssb_add_connections_changed_callback(ssb0, _ssb_test_room_connections_changed, NULL, NULL);
	tf_ssb_add_connections_changed_callback(ssb1, _ssb_test_room_connections_changed, NULL, NULL);

	tf_ssb_add_broadcasts_changed_callback(ssb0, _ssb_test_room_broadcasts_changed, NULL, NULL);

	tf_ssb_connect_str(ssb0, "net:linode.unprompted.com:8008~shs:Q0pc/7kXQJGIlqJxuwayL2huayzddgkVDoGkYVWQS1Y=:SSB+Room+PSK3TLYC2T86EHQCUHBUHASCASE18JBV24=");
	tf_ssb_connect_str(ssb1, "net:linode.unprompted.com:8008~shs:Q0pc/7kXQJGIlqJxuwayL2huayzddgkVDoGkYVWQS1Y=:SSB+Room+PSK3TLYC2T86EHQCUHBUHASCASE18JBV24=");

	uv_run(&loop, UV_RUN_DEFAULT);

	tf_ssb_destroy(ssb0);
	tf_ssb_destroy(ssb1);

	tf_trace_destroy(trace);

	uv_loop_close(&loop);
}

#if !TARGET_OS_IPHONE
static void _write_file(const char* path, const char* contents)
{
	FILE* file = fopen(path, "w");
	if (!file)
	{
		printf("Unable to write %s: %s.\n", path, strerror(errno));
		fflush(stdout);
		abort();
	}
	fputs(contents, file);
	fclose(file);
}

#define TEST_ARGS " --ssb-port=0 --http-port=0 --https-port=0"

void tf_ssb_test_encrypt(const tf_test_options_t* options)
{
	_write_file("out/test.js",
		"async function main() {\n"
		"	let a = await ssb.createIdentity('test');\n"
		"	let b = await ssb.createIdentity('test');\n"
		"	let c = await ssb.privateMessageEncrypt('test', a, [a, b], \"{'foo': 1}\");\n"
		"	if (!c.endsWith('.box')) {\n"
		"		exit(1);\n"
		"	}\n"
		"	print(await ssb.privateMessageDecrypt('test', a, c));\n"
		"}\n"
		"main().catch(() => exit(2));\n");

	unlink("out/testdb.sqlite");
	char command[256];
	snprintf(command, sizeof(command), "%s run --db-path=out/testdb.sqlite -s out/test.js" TEST_ARGS, options->exe_path);
	tf_printf("%s\n", command);
	int result = system(command);
	(void)result;
	assert(WIFEXITED(result));
	printf("returned %d\n", WEXITSTATUS(result));
	assert(WEXITSTATUS(result) == 0);
}

static void _count_broadcasts_callback(
	const char* host, const struct sockaddr_in* addr, tf_ssb_broadcast_origin_t origin, tf_ssb_connection_t* tunnel, const uint8_t* pub, void* user_data)
{
	int* count = user_data;
	(*count)++;
}

static int _count_broadcasts(tf_ssb_t* ssb)
{
	int count = 0;
	tf_ssb_visit_broadcasts(ssb, _count_broadcasts_callback, &count);
	return count;
}

void tf_ssb_test_peer_exchange(const tf_test_options_t* options)
{
	uv_loop_t loop = { 0 };
	uv_loop_init(&loop);

	unlink("out/test_db0.sqlite");
	tf_ssb_t* ssb0 = tf_ssb_create(&loop, NULL, "file:out/test_db0.sqlite", NULL);
	tf_ssb_set_is_room(ssb0, false);
	tf_ssb_set_is_replicator(ssb0, false);
	tf_ssb_set_is_peer_exchange(ssb0, true);
	tf_ssb_register(tf_ssb_get_context(ssb0), ssb0);
	tf_ssb_server_open(ssb0, 12347);

	unlink("out/test_db1.sqlite");
	tf_ssb_t* ssb1 = tf_ssb_create(&loop, NULL, "file:out/test_db1.sqlite", NULL);
	tf_ssb_set_is_room(ssb1, false);
	tf_ssb_set_is_replicator(ssb1, false);
	tf_ssb_set_is_peer_exchange(ssb1, true);
	tf_ssb_register(tf_ssb_get_context(ssb1), ssb1);
	tf_ssb_server_open(ssb1, 12348);

	unlink("out/test_db2.sqlite");
	tf_ssb_t* ssb2 = tf_ssb_create(&loop, NULL, "file:out/test_db2.sqlite", NULL);
	tf_ssb_set_is_room(ssb2, false);
	tf_ssb_set_is_replicator(ssb2, false);
	tf_ssb_set_is_peer_exchange(ssb2, true);
	tf_ssb_register(tf_ssb_get_context(ssb2), ssb2);
	tf_ssb_server_open(ssb2, 12349);

	char id0[k_id_base64_len] = { 0 };
	tf_ssb_whoami(ssb0, id0, sizeof(id0));
	uint8_t id0bin[k_id_bin_len];
	tf_ssb_id_str_to_bin(id0bin, id0);
	tf_ssb_connect(ssb1, "127.0.0.1", 12347, id0bin);
	tf_ssb_connect(ssb2, "127.0.0.1", 12347, id0bin);

	while (_count_broadcasts(ssb0) != 2 || _count_broadcasts(ssb1) != 1 || _count_broadcasts(ssb2) != 1)
	{
		uv_run(&loop, UV_RUN_ONCE);
	}

	tf_ssb_send_close(ssb0);
	tf_ssb_send_close(ssb1);
	tf_ssb_send_close(ssb2);

	tf_ssb_destroy(ssb0);
	tf_ssb_destroy(ssb1);
	tf_ssb_destroy(ssb2);

	uv_run(&loop, UV_RUN_DEFAULT);

	uv_loop_close(&loop);
}

#endif