use alloc::{
    borrow::ToOwned,
    string::String,
};
use alloc::fmt;
use fmt::Debug;

use crate::{*, types::*, uuid::*};
#[cfg(all(test, feature = "std"))]
use crate::protocol::TestRandom;

define_protocol!(761, Packet761, RawPacket761, RawPacket761Body, Packet761Kind => {
    // Handshaking
    Handshake, 0x00, Handshaking, ServerBound => HandshakeSpec {
        version: VarInt,
        server_address: String,
        server_port: u16,
        next_state: HandshakeNextState
    },

    // Status - ClientBound
    StatusRespone, 0x00, Status, ClientBound => StatusResponseSpec {
        response: super::status::StatusSpec
    },
    PingResponse, 0x01, Status, ClientBound => PingResponseSpec {
        payload: i64
    },

    // Status - ServerBound
    StatusRequest, 0x00, Status, ServerBound => StatusRequestSpec {
    },
    PingRequest, 0x01, Status, ServerBound => PingRequestSpec {
        payload: i64
    },

    // Login - ClientBound
    DisconnectLogin, 0x00, Login, ClientBound => DisconnectLoginSpec {
        payloadreason: Chat
    },
    EncryptionRequest, 0x01, Login, ClientBound => EncryptionRequestSpec {
        server_id: String,
        public_key: CountedArray<u8, VarInt>,
        verify_token: CountedArray<u8, VarInt>
    },
    LoginSuccess, 0x02, Login, ClientBound => LoginSuccessSpec {
        uuid: UUID4,
        username: String,
        properties: CountedArray<LoginProperty, VarInt>
    },
    SetCompression, 0x03, Login, ClientBound => SetCompressionSpec {
        threshold: VarInt
    },
    LoginPluginRequest, 0x04, Login, ClientBound => LoginPluginRequestSpec {
        message_id: VarInt,
        channel: String,
        data: RemainingBytes
    },

    // Login - ServerBound
    LoginStart, 0x00, Login, ServerBound => LoginStartSpec {
        name: String,
        player_uuid: Option<UUID4>
    },
    EncryptionResponse, 0x01, Login, ServerBound => EncryptionResponseSpec {
        shared_secret: CountedArray<u8, VarInt>,
        verfiy_token: CountedArray<u8, VarInt>
    },
    LoginPluginResponse, 0x02, Login, ServerBound => LoginPluginResponseSpec {
        message_id: VarInt,
        successful: bool,
        data: RemainingBytes
    },

    // Play - ClientBound
    SpawnEntity, 0x00, Play, ClientBound => SpawnEntitySpec {
        entity_id: VarInt,
        entity_uuid: UUID4,
        entity_type: VarInt, // TODO enumerate mob types
        position: Vec3<f64>,
        pitch: Angle,
        yaw: Angle,
        data: i32,
        velocity: Vec3<i16>
    },
    SpawnExperienceOrb, 0x01, Play, ClientBound => SpawnExperienceOrbSpec {
        entity_id: VarInt,
        position: Vec3<f64>,
        count: i16
    },
    SpawnPlayer, 0x02, Play, ClientBound => SpawnPlayerSpec {
        entity_id: VarInt,
        player_uuid: UUID4,
        position: Vec3<f64>,
        yaw: Angle,
        pitch: Angle
    },
    EntityAnimation, 0x03, Play, ClientBound => EntityAnimationSpec {
        entity_id: VarInt,
        animation: u8 // TODO: enumerate animation id
    },
    AwardStatistics, 0x04, Play, ClientBound => AwardStatisticsSpec {
        statistics: CountedArray<StatisticValue, VarInt>
    },
    AcknowledgeBlockChange, 0x05, Play, ClientBound => AcknowledgeBlockChangeSpec {
        sequence_id: VarInt
    },
    SetBlockDestroyStage, 0x06, Play, ClientBound => SetBlockDestroyStageSpec {
        entity_id: VarInt,
        location: IntPosition,
        destroy_stage: u8
    },
    BlockEntityData, 0x07, Play, ClientBound => BlockEntityDataSpec {
        location: IntPosition,
        block_entity_type: VarInt,
        nbt_data: NamedNbtTag
    },
    BlockAction, 0x08, Play, ClientBound => BlockActionSpec {
        location: IntPosition,
        action_id: u8,
        action_parameter: u8,
        block_type: VarInt
    },
    BlockUpdate, 0x09, Play, ClientBound => BlockUpdateSpec {
        location: IntPosition,
        block_id: VarInt
    },
    BossBar, 0x0A, Play, ClientBound => BossBarSpec {
        uuid: UUID4,
        action: BossBarAction
    },
    ChangeDifficulty, 0x0B, Play, ClientBound => ChangeDifficultySpec {
        difficulty: Difficulty,
        difficulty_locked: bool
    },
    ClearTitles, 0x0C, Play, ClientBound => ClearTitlesSpec {
        reset: bool
    },
    /*
    CommandSuggestionResponse, 0x0D, Play, ClientBound => CommandSuggestionResponseSpec {
        transaction_id: VarInt,
        start: VarInt,
        length: VarInt,
        suggestions: CountedArray<CommandSuggestion, VarInt>
    },
    */
    Commands, 0x0E, Play, ClientBound => CommandsSpec {
        nodes: CountedArray<CommandNodeSpec, VarInt>,
        root_index: VarInt
    },
    CloseContainer, 0x0F, Play, ClientBound => CloseContainerSpec {
        window_id: u8
    },
    SetContainerContent, 0x10, Play, ClientBound => SetContainerContentSpec {
        window_id: u8,
        state_id: VarInt,
        slot_data: CountedArray<Slot, VarInt>,
        carried_item: Slot
    },
    SetContainerProperty, 0x11, Play, ClientBound => SetContainerPropertySpec {
        window_id: u8,
        property: i16,
        value: i16
    },
    SetContainerSlot, 0x12, Play, ClientBound => SetContainerSlotSpec {
        window_id: u8,
        state_id: VarInt,
        slot_index: i16,
        slot_data: Slot
    },
    SetCooldown, 0x13, Play, ClientBound => SetCooldownSpec {
        item_id: VarInt,
        cooldown_ticks: VarInt
    },
    ChatSuggestions, 0x14, Play, ClientBound => ChatSuggestionsSpec {
        action: VarInt,
        entries: CountedArray<String, VarInt>
    },
    PluginMessage, 0x15, Play, ClientBound => PluginMessageSpec {
        channel: String,
        data: RemainingBytes
    },
    DeleteMessage, 0x16, Play, ClientBound => DeleteMessageSpec {
        signature: CountedArray<u8, VarInt>
    },
    DisconnectPlay, 0x17, Play, ClientBound => DisconnectPlaySpec {
        reason: Chat
    },
    DisguisedChatMessage, 0x18, Play, ClientBound => DisguisedChatMessageSpec {
        message: Chat,
        chat_type: VarInt,
        chat_type_name: Chat,
        target_name: Option<Chat>
    },
    EntityEvent, 0x19, Play, ClientBound => EntityEventSpec {
        entity_id: i32,
        entity_status: u8
    },
    Explosion, 0x1A, Play, ClientBound => ExplosionSpec {
        position: Vec3<f64>,
        strength: f32,
        affected_blocks: CountedArray<Vec3<i8>, VarInt>,
        player_motion: Vec3<f32>
    },
    UnloadChunk, 0x1B, Play, ClientBound => UnloadChunkSpec {
        chunk_x: i32,
        chunk_z: i32
    },
    GameEvent, 0x1C, Play, ClientBound => GameEventSpec {
        event: GameEventType,
        data: f32
    },
    OpenHorseScreen, 0x1D, Play, ClientBound => OpenHorseScreenSpec {
        window_id: u8,
        slot_count: VarInt,
        entity_id: i32
    },
    InitializeWorldBorder, 0x1E, Play, ClientBound => InitializeWorldBorderSpec {
        x: f64,
        z: f64,
        old_diameter: f64,
        new_diameter: f64,
        speed: VarLong,
        portal_teleport_boundary: VarInt,
        warning_blocks: VarInt,
        warning_time: VarInt
    },
    KeepAliveClientBound, 0x1f, Play, ClientBound => KeepAliveClientBoundSpec {
        keep_alive_id: i64
    },
    ChunkDataAndUpdateLight, 0x20, Play, ClientBound => ChunkDataAndUpdateLightSpec {
        chunk_x: i32,
        chunk_z: i32,
        chunk_data: ChunkDataSpec,
        light_data: LightDataSpec,
    },
    // TODO 0x21 - 0x23
    LoginPlay, 0x24, Play, ClientBound => LoginPlaySpec {
        entity_id: i32,
        is_hardcore: bool,
        gamemode: GameMode,
        previous_gamemode: PreviousGameMode,
        dimension_names: CountedArray<String, VarInt>,
        registry_codex: NamedNbtTag,
        dimension_type: String,
        dimension_name: String,
        hashed_seed: u64,
        max_players: VarInt,
        view_distance: VarInt,
        simulation_distance: VarInt,
        reduced_debug_info: bool,
        enable_respawn_screen: bool,
        is_debug: bool,
        is_flat: bool,
        death_location: Option<DeathLocation>,
    },
    // TODO 0x25 - 0x48
    SynchronizePlayerPosition, 0x38, Play, ClientBound => SynchronizePlayerPositionSpec {
        position: Vec3<f64>,
        yaw: f32,
        pitch: f32,
        flags: SynchronizePlayerPositionFlags,
        teleport_id: VarInt,
        dismount_vehicle: bool
    },
    UpdateRecipeBook, 0x39, Play, ClientBound => UpdateRecipeBookSpec {
        action: RecipeBookAction,
    },
    // TODO missing recipe


    SetCenterChunk, 0x4A, Play, ClientBound => SetCenterChunkSpec {
        chunk_x: VarInt,
        chunk_z: VarInt,
    },
    SetDefaultSpawnPosition, 0x4C, Play, ClientBound => SetDefaultSpawnPositionSpec {
        location: IntPosition,
        angle: f32,
    },

    // TODO missing recipe

    SetHeldItemClient, 0x49, Play, ClientBound => SetHeldItemClientSpec {
        selected_slot: u8,
    },
    // TODO missing recipe
    UpdateRecipes, 0x69, Play, ClientBound => UpdateRecipesSpec {
        recipes: CountedArray<Recipe, VarInt>
    },

    UpdateTags, 0x6A, Play, ClientBound => UpdateTagsSpec {
        tags: CountedArray<TypedTagList, VarInt>
    },

    // Play - ServerBound
    
    // TODO 0x00 - 0x06
    
    ClientInformation, 0x07, Play, ServerBound => ClientInformationSpec {
        locale: String,
        view_distance: u8,
        chat_mode: ChatMode,
        chat_colors: bool,
        displayed_skin_parts: DisplayedSkinParts,
        main_hand: MainHand,
        enable_text_filtering: bool,
        allow_server_listings: bool,
    },
    // TODO Missing packets
    SetHeldItemServer, 0x28, Play, ServerBound => SetHeldItemServerSpec {
        selected_slot: u8,
    },
});


// Helper types
proto_struct!(ChunkSection {
    block_count: u16,
    block_state: PalettedContainer,
    biomes: PalettedContainer,
});



#[derive(Debug, Clone, PartialEq)]
pub enum PalettedContainer {
    SingularValue(VarInt),
    GlobalPalette(BlobArray),
}

impl Serialize for PalettedContainer {
    fn mc_serialize<S: Serializer>(&self, to: &mut S) -> SerializeResult {
        match self {
            PalettedContainer::SingularValue(value) => {
                to.serialize_byte(0)?;
                to.serialize_other(value)?;
                // Serialize 0 bit bitstorage
                to.serialize_other(&BitSet::empty())?;
            }
            PalettedContainer::GlobalPalette(data) => {
                to.serialize_byte(9)?;
                to.serialize_other(data)?;
            }
        }
        Ok(())
    }
}

impl Deserialize for PalettedContainer {
    fn mc_deserialize(_data: &[u8]) -> DeserializeResult<Self> {
        Err(DeserializeErr::CannotUnderstandValue("Not implemented".into()))
    }
}

#[derive(Debug, PartialEq, Clone)]
pub struct BlobArray {
    // TODO make this work same as bit storage with a const generic entry size
    pub data: Vec<u64>,
    entry_size: usize,
}

impl BlobArray {
    pub fn new(entry_size: u8) -> Self {
        BlobArray { entry_size: entry_size as usize, data: vec![] }
    }

    pub fn ensure_capacity(&mut self, index: usize) {
        let entries_per_long = 64usize / self.entry_size;
        let needed_length = index / entries_per_long + 1;
        if self.data.len() < needed_length {
            self.data.extend(vec![0u64; needed_length - self.data.len()]);
        }
    }

    pub fn set_entry(&mut self, index: usize, value: u64) {
        let entries_per_long = 64usize / self.entry_size;
        let array_index = index / entries_per_long;
        let position = index % entries_per_long;
        let array_shift = position * self.entry_size;
        let mask = (1u64 << self.entry_size) - 1;
        self.ensure_capacity(index);
        self.data[array_index] |= (value & mask) << array_shift;
    }

    pub fn get_entry(&mut self, index: usize) -> u64 {
        let entries_per_long = 64 / self.entry_size;
        let array_index = index / entries_per_long;
        let position = index % entries_per_long;
        let array_shift = position * self.entry_size;
        let mask = (1u64 << self.entry_size) - 1;
        self.ensure_capacity(index);
        (self.data[array_index] >> array_shift) & mask
    }
}

impl Serialize for BlobArray {
    fn mc_serialize<S: Serializer>(&self, to: &mut S) -> SerializeResult {
        to.serialize_other(&VarInt::from(self.data.len() as i32))?;
        for elem in &self.data {
            to.serialize_other(elem)?;
        }
        Ok(())
    }
}

impl Deserialize for BlobArray {
    fn mc_deserialize(_data: &[u8]) -> DeserializeResult<Self> {
        Err(DeserializeErr::CannotUnderstandValue("Not implemented".into()))
    }
}


proto_struct!(BitSet {
    data: CountedArray<u64, VarInt>,
});

impl BitSet {
    pub fn empty() -> BitSet {
        BitSet { data: vec![].into() }
    }

    pub fn is_bit_set(&self, index: usize) -> bool {
        if index * 64 >= self.data.len() {
            return false;
        }
        self.is_bit_set_unsafe(index)
    }
    pub fn ensure_capacity(&mut self, index: usize) {
        let needed_length = index / 64 + 1;
        let length_increase = needed_length - self.data.len();
        if length_increase > 0 {
            self.data.extend(vec![0u64; length_increase]);
        }
    }

    pub fn is_bit_set_unsafe(&self, index: usize) -> bool {
        self.data[index / 64] & (1u64 << (index % 64)) != 0
    }

    pub fn set_bit(&mut self, index: usize, value: bool) {
        self.ensure_capacity(index);
        self.set_bit_unsafe(index, value)
    }

    pub fn set_bit_unsafe(&mut self, index: usize, value: bool) {
        if value {
            self.data[index / 64] |= 1u64 << (index % 64);
        } else {
            self.data[index / 64] &= !(1u64 << (index % 64));
        }
    }
}


proto_struct!(LightDataSpec {
    trust_edges: bool,
    sky_y_mask: BitSet,
    block_y_mask: BitSet,
    empty_sky_y_mask: BitSet,
    empty_block_y_mask: BitSet,
    sky_updates: CountedArray<CountedArray<u8, VarInt>, VarInt>,
    block_updates: CountedArray<CountedArray<u8, VarInt>, VarInt>,
});
proto_struct!(ChunkDataSpec {
    heightmaps: NamedNbtTag,
    buffer: CountedArray<u8, VarInt>,
    block_entities: CountedArray<BlockEntity, VarInt>,
});

proto_byte_flag!(SynchronizePlayerPositionFlags,
    0x01 :: is_x_relative set_x_relative,
    0x02 :: is_y_relative set_y_relative,
    0x04 :: is_z_relative set_z_relative,
    0x08 :: is_y_rot_relative set_y_rot_relative,
    0x10 :: is_x_rot_relative set_x_rot_relative,
);

proto_varint_enum!(RecipeBookAction,
    0 :: Init(RecipeBookInitSpec),
    1 :: Add(RecipeBookDiffSpec),
    2 :: Remove(RecipeBookDiffSpec),
);

proto_struct!(RecipeBookInitSpec {
    book_settings: BookSettings,
    known_recipes: CountedArray<String, VarInt>,
    highlighted_recipes: CountedArray<String, VarInt>,
});

proto_struct!(RecipeBookDiffSpec {
    book_settings: BookSettings,
    to_add_or_remove: CountedArray<String, VarInt>,
});
proto_struct!(BookSettings {
    crafting: BookSetting,
    smelting: BookSetting,
    blast_furnace: BookSetting,
    smoker: BookSetting,
});
impl Default for BookSettings {
    fn default() -> Self {
        return BookSettings {
            crafting: BookSetting::default(),
            smelting: BookSetting::default(),
            blast_furnace: BookSetting::default(),
            smoker: BookSetting::default(),
        };
    }
}

proto_struct!(BookSetting {
    open: bool,
    filter_active: bool,
});

impl Default for BookSetting {
    fn default() -> Self {
        return BookSetting { open: false, filter_active: false };
    }
}

proto_str_enum!(TagType,
    "minecraft:block" :: Block,
    "minecraft:item" :: Item,
    "minecraft:fluid" :: Fluid,
    "minecraft:entity_type" :: EntityType,
    "minecraft:game_event" :: GameEvent,
);

#[derive(Clone, Debug, PartialEq)]
pub struct CommandNodeSpec {
    pub children_indices: CountedArray<VarInt, VarInt>,
    pub redirect_node: Option<VarInt>,
    pub is_executable: bool,
    pub node: CommandNode,
}

#[derive(Clone, Debug, PartialEq)]
pub enum CommandNode {
    Root,
    Argument(CommandArgumentNodeSpec),
    Literal(CommandLiteralNodeSpec),
}

proto_struct!(CommandLiteralNodeSpec {
    name: String
});

#[derive(Clone, Debug, PartialEq)]
pub struct CommandArgumentNodeSpec {
    name: String,
    parser_id: VarInt,
    properties: CommandNodeProperties,
    suggestions_types: Option<SuggestionsTypeSpec>,
}

impl Serialize for CommandArgumentNodeSpec {
    fn mc_serialize<S: Serializer>(&self, to: &mut S) -> SerializeResult {
        to.serialize_other(&self.name)?;
        to.serialize_other(&self.parser_id)?;
        to.serialize_other(&self.properties)?;
        if let Some(body) = &self.suggestions_types {
            to.serialize_other(body)?;
        }

        Ok(())
    }
}

impl CommandArgumentNodeSpec {
    fn mc_deserialize(has_suggestions: bool, data: &[u8]) -> DeserializeResult<Self> {
        let Deserialized { value: name, data } = String::mc_deserialize(data)?;
        let Deserialized { value: parser_id, data } = VarInt::mc_deserialize(data)?;
        let Deserialized { value: properties, data } = CommandNodeProperties::mc_deserialize(data)?;
        let (suggestions_types, data) = if has_suggestions {
            let Deserialized { value: suggestions_types, data } = SuggestionsTypeSpec::mc_deserialize(data)?;
            (Some(suggestions_types), data)
        } else {
            (None, data)
        };
        Deserialized::ok(
            Self {
                name,
                parser_id,
                properties,
                suggestions_types,
            },
            data,
        )
    }
}
proto_str_enum!(SuggestionsTypeSpec,
    "minecraft:ask_server" :: AskServer,
    "minecraft:all_recipes" :: AllRecipes,
    "minecraft:available_sounds" :: AvailableSounds,
    "minecraft:available_bioms" :: AvailableBiomes,
    "minecraft:summonable_entities" :: SummonableEntities,
);

proto_varint_enum!(CommandNodeProperties,
    0 :: Bool,
);


impl Serialize for CommandNodeSpec {
    fn mc_serialize<S: Serializer>(&self, to: &mut S) -> SerializeResult {
        let mut flags = 0u8;
        use CommandNode::*;
        flags |= match &self.node {
            Root => 0x00,
            Argument(_) => 0x1,
            Literal(_) => 0x2,
        };

        if self.is_executable {
            flags |= 0x04;
        }
        if self.redirect_node.is_some() {
            flags |= 0x08;
        }

        if let Argument(argument_data) = &self.node {
            if argument_data.suggestions_types.is_some() {
                flags |= 0x10;
            }
        }

        to.serialize_byte(flags)?;
        to.serialize_other(&self.children_indices)?;
        if let Some(redirect_node) = &self.redirect_node {
            to.serialize_other(redirect_node)?;
        }
        match &self.node {
            Root => Ok(()),
            Argument(body) => to.serialize_other(body),
            Literal(body) => to.serialize_other(body)
        }
    }
}

impl Deserialize for CommandNodeSpec {
    fn mc_deserialize(data: &[u8]) -> DeserializeResult<Self> {
        let Deserialized { value: flags, data } = u8::mc_deserialize(data)?;
        let Deserialized {
            value: children_indices,
            data,
        } = <CountedArray<VarInt, VarInt>>::mc_deserialize(data)?;
        let is_executable = flags & 0x04 != 0;
        let has_redirect = flags & 0x08 != 0;
        let (redirect_node, data) = if has_redirect {
            let Deserialized {
                value: redirect_node,
                data,
            } = VarInt::mc_deserialize(data)?;
            (Some(redirect_node), data)
        } else {
            (None, data)
        };
        use CommandNode::*;

        let Deserialized { value: node, data } = match flags & 0x03 {
            0x00 => Deserialized::ok(Root, data),
            0x01 => {
                Ok(CommandLiteralNodeSpec::mc_deserialize(data)?.map(move |body| Literal(body)))
            }
            0x02 => Ok(
                CommandArgumentNodeSpec::mc_deserialize(flags & 0x10 != 0, data)?
                    .map(move |body| Argument(body)),
            ),
            _ => Err(DeserializeErr::CannotUnderstandValue(
                format!("Cannot understand {} as command node type", flags))),
        }?;

        Deserialized::ok(
            Self {
                children_indices,
                redirect_node,
                is_executable,
                node,
            },
            data,
        )
    }
}


proto_struct!(TypedTagList {
    tag_type: TagType,
    tags: CountedArray<TagSpec, VarInt>
});

proto_struct!(TagSpec {
    name: String,
    entries: CountedArray<VarInt, VarInt>
});

proto_str_enum!(Recipe,
    "TODO" :: Todo
);

proto_varint_enum!(MainHand,
    0 :: Left,
    1 :: Right,
);

proto_byte_flag!(DisplayedSkinParts,
    0x01 :: is_cape_enabled set_cape_enabled,
    0x02 :: is_jacket_enabled set_jacket_enabled,
    0x04 :: is_left_sleeve_enabled set_left_sleeve_enabled,
    0x08 :: is_right_sleeve_enabled set_right_sleeve_enabled,
    0x10 :: is_left_pants_leg_enabled set_left_pants_leg_enabled,
    0x20 :: is_right_pants_leg_enabled set_right_pants_leg_enabled,
    0x40 :: is_hat_enabled set_hat_enabled,
);

proto_varint_enum!(ChatMode,
    0 :: Enabled,
    1 :: CommandsOnly,
    2 :: Hidden,
);
proto_struct!(DeathLocation {
    death_dimension_name: String,
    death_location: IntPosition
});

proto_byte_enum!(GameMode,
    0 :: Survival,
    1 :: Creative,
    2 :: Adventure,
    3 :: Spectator,
);

#[derive(Clone, Debug, PartialEq)]
pub enum PreviousGameMode {
    NoPrevious,
    Previous(GameMode),
}

impl PreviousGameMode {
    pub fn id(&self) -> i8 {
        use PreviousGameMode::*;
        match self {
            NoPrevious => -1,
            Previous(mode) => mode.id() as i8,
        }
    }
}

impl Serialize for PreviousGameMode {
    fn mc_serialize<S: Serializer>(&self, to: &mut S) -> SerializeResult {
        to.serialize_byte(self.id() as u8)
    }
}

impl Deserialize for PreviousGameMode {
    fn mc_deserialize(data: &[u8]) -> DeserializeResult<'_, Self> {
        let Deserialized { value: id, data } = i8::mc_deserialize(data)?;

        use PreviousGameMode::*;
        match id {
            -1 => Deserialized::ok(NoPrevious, data),
            other => {
                Ok(GameMode::deserialize_with_id(other as u8, data)?.map(move |gm| Previous(gm)))
            }
        }
    }
}
proto_struct!(BlockEntity {
    packed_xz: u8,
    y: i16,
    block_entity_type: VarInt,
    data: NamedNbtTag
});
proto_byte_enum!(GameEventType,
    0 :: NoRespawnBlockAvailable,
    1 :: EndRaining,
    2 :: BeginRaining,
    3 :: ChangeGamemode,
    4 :: WinGame,
    5 :: DemoEvent,
    6 :: ArrowHitPlayer,
    7 :: RainLevelChange,
    8 :: ThunderLevelChange,
    9 :: PlayPufferfishStingSound,
    10 :: PlayElderGuardianMobAppearance,
    11 :: SetImmediateRespawn
);

proto_struct!(CommandSuggestion {
    match_text: String,
    tooltip: Option<Chat>
});

proto_byte_enum!(Difficulty,
    0 :: Peaceful,
    1 :: Easy,
    2 :: Normal,
    3 :: Hard
);

proto_byte_enum!(HandshakeNextState,
    0x01 :: Status,
    0x02 :: Login
);

proto_struct!(LoginProperty {
    name: String,
    value: String,
    signature: Option<String>
});

proto_struct!(StatisticValue {
    category_id: StatisticCategory,
    statistic_id: VarInt,
    value: VarInt
});

proto_varint_enum!(StatisticCategory,
    0 :: Mined,
    1 :: Crafted,
    2 :: Used,
    3 :: Broken,
    4 :: PickedUp,
    5 :: Dropped,
    6 :: Killed,
    7 :: KilledBy,
    8 :: Custom
);

proto_varint_enum!(BossBarAction,
    0 :: Add(BossBarAddSpec),
    1 :: Remove,
    2 :: UpdateHealth(f32),
    3 :: UpdateTitle(Chat),
    4 :: UpdateStyle(BossBarUpdateStyleSpec),
    5 :: UpdateFlags(BossBarFlags)
);

proto_struct!(BossBarAddSpec {
    title: Chat,
    health: f32,
    color: BossBarColor,
    division: BossBarDivision,
    flags: BossBarFlags
});

proto_struct!(BossBarUpdateStyleSpec {
    color: BossBarColor,
    dividers: BossBarDivision
});

proto_varint_enum!(BossBarColor,
    0 :: Pink,
    1 :: Blue,
    2 :: Red,
    3 :: Green,
    4 :: Yellow,
    5 :: Purple,
    6 :: White
);
proto_varint_enum!(BossBarDivision,
    0 :: NoDivision,
    1 :: SixNotches,
    2 :: TenNotches,
    3 :: TwelveNotches,
    4 :: TwentyNotches
);

proto_byte_flag!(BossBarFlags,
    0x01 :: is_darken_sky set_darken_sky,
    0x02 :: is_dragon_bar set_dragon_bar,
    0x03 :: is_create_fog set_create_fog
);