#include <gtest/gtest.h>
#include <QJsonArray>

#include "Event.h"
#include "RoomEvent.h"
#include "StateEvent.h"

#include "AliasesEventContent.h"
#include "AvatarEventContent.h"
#include "CanonicalAliasEventContent.h"
#include "CreateEventContent.h"
#include "HistoryVisibilityEventContent.h"
#include "JoinRulesEventContent.h"
#include "MemberEventContent.h"
#include "NameEventContent.h"
#include "PowerLevelsEventContent.h"
#include "TopicEventContent.h"

using namespace matrix::events;

TEST(BaseEvent, Deserialization)
{
	// NameEventContent
	auto data = QJsonObject{
		{"content", QJsonObject{{"name", "Room Name"}}},
		{"type", "m.room.name"}};

	Event<NameEventContent> name_event;
	name_event.deserialize(data);
	EXPECT_EQ(name_event.content().name(), "Room Name");

	// TopicEventContent
	data = QJsonObject{
		{"content", QJsonObject{{"topic", "Room Topic"}}},
		{"type", "m.room.topic"}};

	Event<TopicEventContent> topic_event;
	topic_event.deserialize(data);
	EXPECT_EQ(topic_event.content().topic(), "Room Topic");

	// AvatarEventContent
	data = QJsonObject{
		{"content", QJsonObject{{"url", "https://matrix.org"}}},
		{"type", "m.room.avatar"}};

	Event<AvatarEventContent> avatar_event;
	avatar_event.deserialize(data);
	EXPECT_EQ(avatar_event.content().url().toString(), "https://matrix.org");

	// AliasesEventContent
	data = QJsonObject{
		{"content", QJsonObject{{"aliases", QJsonArray{"#test:matrix.org", "#test2:matrix.org"}}}},
		{"type", "m.room.aliases"}};

	Event<AliasesEventContent> aliases_event;
	aliases_event.deserialize(data);
	EXPECT_EQ(aliases_event.content().aliases().size(), 2);

	// CreateEventContent
	data = QJsonObject{
		{"content", QJsonObject{{"creator", "@alice:matrix.org"}}},
		{"type", "m.room.create"}};

	Event<CreateEventContent> create_event;
	create_event.deserialize(data);
	EXPECT_EQ(create_event.content().creator(), "@alice:matrix.org");

	// JoinRulesEventContent
	data = QJsonObject{
		{"content", QJsonObject{{"join_rule", "private"}}},
		{"type", "m.room.join_rules"}};

	Event<JoinRulesEventContent> join_rules_event;
	join_rules_event.deserialize(data);
	EXPECT_EQ(join_rules_event.content().joinRule(), JoinRule::Private);
}

TEST(BaseEvent, DeserializationException)
{
	auto data = QJsonObject{
		{"content", QJsonObject{{"rule", "private"}}},
		{"type", "m.room.join_rules"}};

	Event<JoinRulesEventContent> event1;
	ASSERT_THROW(event1.deserialize(data), DeserializationException);

	data = QJsonObject{
		{"contents", QJsonObject{{"join_rule", "private"}}},
		{"type", "m.room.join_rules"}};

	Event<JoinRulesEventContent> event2;
	ASSERT_THROW(event2.deserialize(data), DeserializationException);
}

TEST(RoomEvent, Deserialization)
{
	auto data = QJsonObject{
		{"content", QJsonObject{{"name", "Name"}}},
		{"event_id", "$asdfafdf8af:matrix.org"},
		{"room_id", "!aasdfaeae23r9:matrix.org"},
		{"sender", "@alice:matrix.org"},
		{"origin_server_ts", 1323238293289323LL},
		{"type", "m.room.name"}};

	RoomEvent<NameEventContent> event;
	event.deserialize(data);

	EXPECT_EQ(event.eventId(), "$asdfafdf8af:matrix.org");
	EXPECT_EQ(event.roomId(), "!aasdfaeae23r9:matrix.org");
	EXPECT_EQ(event.sender(), "@alice:matrix.org");
	EXPECT_EQ(event.timestamp(), 1323238293289323);
	EXPECT_EQ(event.content().name(), "Name");
}

TEST(RoomEvent, DeserializationException)
{
	auto data = QJsonObject{
		{"content", QJsonObject{{"name", "Name"}}},
		{"event_id", "$asdfafdf8af:matrix.org"},
		{"room_id", "!aasdfaeae23r9:matrix.org"},
		{"origin_server_ts", 1323238293289323LL},
		{"type", "m.room.name"}};

	RoomEvent<NameEventContent> event;

	try {
		event.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("sender key is missing", e.what());
	}
}

TEST(StateEvent, Deserialization)
{
	auto data = QJsonObject{
		{"content", QJsonObject{{"name", "Name"}}},
		{"event_id", "$asdfafdf8af:matrix.org"},
		{"state_key", "some_state_key"},
		{"prev_content", QJsonObject{{"name", "Previous Name"}}},
		{"room_id", "!aasdfaeae23r9:matrix.org"},
		{"sender", "@alice:matrix.org"},
		{"origin_server_ts", 1323238293289323LL},
		{"type", "m.room.name"}};

	StateEvent<NameEventContent> event;
	event.deserialize(data);

	EXPECT_EQ(event.eventId(), "$asdfafdf8af:matrix.org");
	EXPECT_EQ(event.roomId(), "!aasdfaeae23r9:matrix.org");
	EXPECT_EQ(event.sender(), "@alice:matrix.org");
	EXPECT_EQ(event.timestamp(), 1323238293289323);
	EXPECT_EQ(event.content().name(), "Name");
	EXPECT_EQ(event.stateKey(), "some_state_key");
	EXPECT_EQ(event.previousContent().name(), "Previous Name");
}

TEST(StateEvent, DeserializationException)
{
	auto data = QJsonObject{
		{"content", QJsonObject{{"name", "Name"}}},
		{"event_id", "$asdfafdf8af:matrix.org"},
		{"prev_content", QJsonObject{{"name", "Previous Name"}}},
		{"room_id", "!aasdfaeae23r9:matrix.org"},
		{"sender", "@alice:matrix.org"},
		{"origin_server_ts", 1323238293289323LL},
		{"type", "m.room.name"}};

	StateEvent<NameEventContent> event;

	try {
		event.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("state_key key is missing", e.what());
	}
}

TEST(EventType, Mapping)
{
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.aliases"}}), EventType::RoomAliases);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.avatar"}}), EventType::RoomAvatar);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.canonical_alias"}}), EventType::RoomCanonicalAlias);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.create"}}), EventType::RoomCreate);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.history_visibility"}}), EventType::RoomHistoryVisibility);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.join_rules"}}), EventType::RoomJoinRules);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.member"}}), EventType::RoomMember);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.message"}}), EventType::RoomMessage);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.name"}}), EventType::RoomName);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.power_levels"}}), EventType::RoomPowerLevels);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.topic"}}), EventType::RoomTopic);
	EXPECT_EQ(extractEventType(QJsonObject{{"type", "m.room.unknown"}}), EventType::Unsupported);
}

TEST(AliasesEventContent, Deserialization)
{
	auto data = QJsonObject{
		{"aliases", QJsonArray{"#test:matrix.org", "#test2:matrix.org"}}};

	AliasesEventContent content;
	content.deserialize(data);

	EXPECT_EQ(content.aliases().size(), 2);
}

TEST(AliasesEventContent, NotAnObject)
{
	auto data = QJsonArray{"#test:matrix.org", "#test2:matrix.org"};

	AliasesEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(AliasesEventContent, MissingKey)
{
	auto data = QJsonObject{
		{"key", QJsonArray{"#test:matrix.org", "#test2:matrix.org"}}};

	AliasesEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("aliases key is missing", e.what());
	}
}

TEST(AvatarEventContent, Deserialization)
{
	auto data = QJsonObject{{"url", "https://matrix.org/avatar.png"}};

	AvatarEventContent content;
	content.deserialize(data);

	EXPECT_EQ(content.url().toString(), "https://matrix.org/avatar.png");
}

TEST(AvatarEventContent, NotAnObject)
{
	auto data = QJsonArray{"key", "url"};

	AvatarEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(AvatarEventContent, MissingKey)
{
	auto data = QJsonObject{{"key", "https://matrix.org"}};

	AvatarEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("url key is missing", e.what());
	}
}

TEST(CreateEventContent, Deserialization)
{
	auto data = QJsonObject{{"creator", "@alice:matrix.org"}};

	CreateEventContent content;
	content.deserialize(data);

	EXPECT_EQ(content.creator(), "@alice:matrix.org");
}

TEST(CreateEventContent, NotAnObject)
{
	auto data = QJsonArray{"creator", "alice"};

	CreateEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(CreateEventContent, MissingKey)
{
	auto data = QJsonObject{{"key", "@alice:matrix.org"}};

	CreateEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("creator key is missing", e.what());
	}
}

TEST(HistoryVisibilityEventContent, Deserialization)
{
	auto data = QJsonObject{{"history_visibility", "invited"}};

	HistoryVisibilityEventContent content;
	content.deserialize(data);
	EXPECT_EQ(content.historyVisibility(), HistoryVisibility::Invited);

	data = QJsonObject{{"history_visibility", "joined"}};

	content.deserialize(data);
	EXPECT_EQ(content.historyVisibility(), HistoryVisibility::Joined);

	data = QJsonObject{{"history_visibility", "shared"}};

	content.deserialize(data);
	EXPECT_EQ(content.historyVisibility(), HistoryVisibility::Shared);

	data = QJsonObject{{"history_visibility", "world_readable"}};

	content.deserialize(data);
	EXPECT_EQ(content.historyVisibility(), HistoryVisibility::WorldReadable);
}

TEST(HistoryVisibilityEventContent, NotAnObject)
{
	auto data = QJsonArray{"history_visibility", "alice"};

	HistoryVisibilityEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(HistoryVisibilityEventContent, InvalidHistoryVisibility)
{
	auto data = QJsonObject{{"history_visibility", "wrong"}};

	HistoryVisibilityEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("Unknown history_visibility value: wrong", e.what());
	}
}

TEST(HistoryVisibilityEventContent, MissingKey)
{
	auto data = QJsonObject{{"key", "joined"}};

	HistoryVisibilityEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("history_visibility key is missing", e.what());
	}
}

TEST(JoinRulesEventContent, Deserialization)
{
	auto data = QJsonObject{{"join_rule", "invite"}};

	JoinRulesEventContent content;
	content.deserialize(data);
	EXPECT_EQ(content.joinRule(), JoinRule::Invite);

	data = QJsonObject{{"join_rule", "knock"}};

	content.deserialize(data);
	EXPECT_EQ(content.joinRule(), JoinRule::Knock);

	data = QJsonObject{{"join_rule", "private"}};

	content.deserialize(data);
	EXPECT_EQ(content.joinRule(), JoinRule::Private);

	data = QJsonObject{{"join_rule", "public"}};

	content.deserialize(data);
	EXPECT_EQ(content.joinRule(), JoinRule::Public);
}

TEST(JoinRulesEventContent, NotAnObject)
{
	auto data = QJsonArray{"rule", "alice"};

	JoinRulesEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(JoinRulesEventContent, InvalidHistoryVisibility)
{
	auto data = QJsonObject{{"join_rule", "wrong"}};

	JoinRulesEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("Unknown join_rule value: wrong", e.what());
	}
}

TEST(JoinRulesEventContent, MissingKey)
{
	auto data = QJsonObject{{"key", "invite"}};

	JoinRulesEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("join_rule key is missing", e.what());
	}
}

TEST(CanonicalAliasEventContent, Deserialization)
{
	auto data = QJsonObject{{"alias", "Room Alias"}};

	CanonicalAliasEventContent content;
	content.deserialize(data);

	EXPECT_EQ(content.alias(), "Room Alias");
}

TEST(CanonicalAliasEventContent, NotAnObject)
{
	auto data = QJsonArray{"alias", "Room Alias"};

	CanonicalAliasEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(CanonicalAliasEventContent, MissingKey)
{
	auto data = QJsonObject{{"key", "alias"}};

	CanonicalAliasEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("alias key is missing", e.what());
	}
}

TEST(MemberEventContent, Deserialization)
{
	MemberEventContent content;

	auto data = QJsonObject{{"membership", "join"}};

	content.deserialize(data);
	EXPECT_EQ(content.membershipState(), Membership::Join);

	data = QJsonObject{{"membership", "invite"}, {"displayname", "Username"}};

	content.deserialize(data);
	EXPECT_EQ(content.membershipState(), Membership::Invite);
	EXPECT_EQ(content.displayName(), "Username");

	data = QJsonObject{{"membership", "leave"}, {"avatar_url", "https://matrix.org"}};

	content.deserialize(data);
	EXPECT_EQ(content.membershipState(), Membership::Leave);
	EXPECT_EQ(content.avatarUrl().toString(), "https://matrix.org");

	data = QJsonObject{{"membership", "ban"}};

	content.deserialize(data);
	EXPECT_EQ(content.membershipState(), Membership::Ban);

	data = QJsonObject{{"membership", "knock"}};

	content.deserialize(data);
	EXPECT_EQ(content.membershipState(), Membership::Knock);
}

TEST(MemberEventContent, InvalidMembership)
{
	auto data = QJsonObject{{"membership", "wrong"}};

	MemberEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("Unknown membership value: wrong", e.what());
	}
}

TEST(MemberEventContent, NotAnObject)
{
	auto data = QJsonArray{"name", "join"};

	MemberEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(MemberEventContent, MissingName)
{
	auto data = QJsonObject{{"key", "random"}};

	MemberEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("membership key is missing", e.what());
	}
}

TEST(NameEventContent, Deserialization)
{
	auto data = QJsonObject{{"name", "Room Name"}};

	NameEventContent content;
	content.deserialize(data);

	EXPECT_EQ(content.name(), "Room Name");
}

TEST(NameEventContent, NotAnObject)
{
	auto data = QJsonArray{"name", "Room Name"};

	NameEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(NameEventContent, MissingName)
{
	auto data = QJsonObject{{"key", "Room Name"}};

	NameEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("name key is missing", e.what());
	}
}

TEST(PowerLevelsEventContent, DefaultValues)
{
	PowerLevelsEventContent power_levels;

	EXPECT_EQ(power_levels.banLevel(), static_cast<int>(PowerLevels::Moderator));
	EXPECT_EQ(power_levels.inviteLevel(), static_cast<int>(PowerLevels::Moderator));
	EXPECT_EQ(power_levels.kickLevel(), static_cast<int>(PowerLevels::Moderator));
	EXPECT_EQ(power_levels.redactLevel(), static_cast<int>(PowerLevels::Moderator));

	EXPECT_EQ(power_levels.eventsDefaultLevel(), static_cast<int>(PowerLevels::User));
	EXPECT_EQ(power_levels.usersDefaultLevel(), static_cast<int>(PowerLevels::User));
	EXPECT_EQ(power_levels.stateDefaultLevel(), static_cast<int>(PowerLevels::Moderator));

	// Default levels.
	EXPECT_EQ(power_levels.userLevel("@joe:matrix.org"), static_cast<int>(PowerLevels::User));
	EXPECT_EQ(power_levels.eventLevel("m.room.message"), static_cast<int>(PowerLevels::User));
}

TEST(PowerLevelsEventContent, FullDeserialization)
{
	auto data = QJsonObject{
		{"ban", 1},
		{"invite", 2},
		{"kick", 3},
		{"redact", 4},

		{"events_default", 5},
		{"state_default", 6},
		{"users_default", 7},

		{"events", QJsonObject{{"m.message.text", 8}, {"m.message.image", 9}}},
		{"users", QJsonObject{{"@alice:matrix.org", 10}, {"@bob:matrix.org", 11}}},
	};

	PowerLevelsEventContent power_levels;
	power_levels.deserialize(data);

	EXPECT_EQ(power_levels.banLevel(), 1);
	EXPECT_EQ(power_levels.inviteLevel(), 2);
	EXPECT_EQ(power_levels.kickLevel(), 3);
	EXPECT_EQ(power_levels.redactLevel(), 4);

	EXPECT_EQ(power_levels.eventsDefaultLevel(), 5);
	EXPECT_EQ(power_levels.stateDefaultLevel(), 6);
	EXPECT_EQ(power_levels.usersDefaultLevel(), 7);

	EXPECT_EQ(power_levels.userLevel("@alice:matrix.org"), 10);
	EXPECT_EQ(power_levels.userLevel("@bob:matrix.org"), 11);
	EXPECT_EQ(power_levels.userLevel("@carl:matrix.org"), 7);

	EXPECT_EQ(power_levels.eventLevel("m.message.text"), 8);
	EXPECT_EQ(power_levels.eventLevel("m.message.image"), 9);
	EXPECT_EQ(power_levels.eventLevel("m.message.gif"), 5);
}

TEST(PowerLevelsEventContent, PartialDeserialization)
{
	auto data = QJsonObject{
		{"ban", 1},
		{"invite", 2},

		{"events_default", 5},
		{"users_default", 7},

		{"users", QJsonObject{{"@alice:matrix.org", 10}, {"@bob:matrix.org", 11}}},
	};

	PowerLevelsEventContent power_levels;
	power_levels.deserialize(data);

	EXPECT_EQ(power_levels.banLevel(), 1);
	EXPECT_EQ(power_levels.inviteLevel(), 2);
	EXPECT_EQ(power_levels.kickLevel(), static_cast<int>(PowerLevels::Moderator));
	EXPECT_EQ(power_levels.redactLevel(), static_cast<int>(PowerLevels::Moderator));

	EXPECT_EQ(power_levels.eventsDefaultLevel(), 5);
	EXPECT_EQ(power_levels.stateDefaultLevel(), static_cast<int>(PowerLevels::Moderator));
	EXPECT_EQ(power_levels.usersDefaultLevel(), 7);

	EXPECT_EQ(power_levels.userLevel("@alice:matrix.org"), 10);
	EXPECT_EQ(power_levels.userLevel("@bob:matrix.org"), 11);
	EXPECT_EQ(power_levels.userLevel("@carl:matrix.org"), 7);

	EXPECT_EQ(power_levels.eventLevel("m.message.text"), 5);
	EXPECT_EQ(power_levels.eventLevel("m.message.image"), 5);
	EXPECT_EQ(power_levels.eventLevel("m.message.gif"), 5);
}

TEST(PowerLevelsEventContent, NotAnObject)
{
	auto data = QJsonArray{"test", "test2"};

	PowerLevelsEventContent power_levels;

	ASSERT_THROW(power_levels.deserialize(data), DeserializationException);
}

TEST(TopicEventContent, Deserialization)
{
	auto data = QJsonObject{{"topic", "Room Topic"}};

	TopicEventContent content;
	content.deserialize(data);

	EXPECT_EQ(content.topic(), "Room Topic");
}

TEST(TopicEventContent, NotAnObject)
{
	auto data = QJsonArray{"topic", "Room Topic"};

	TopicEventContent content;

	ASSERT_THROW(content.deserialize(data), DeserializationException);
}

TEST(TopicEventContent, MissingName)
{
	auto data = QJsonObject{{"key", "Room Name"}};

	TopicEventContent content;
	ASSERT_THROW(content.deserialize(data), DeserializationException);

	try {
		content.deserialize(data);
	} catch (const DeserializationException &e) {
		ASSERT_STREQ("topic key is missing", e.what());
	}
}