use std::io::{Seek, SeekFrom};

use psopacket::pso_message;
use crate::{PSOPacketData, PacketParseError};


pub trait PSOMessage {
    const CMD: u8;
    fn from_bytes<R: std::io::Read + std::io::Seek>(cur: &mut R) -> Result<Self, PacketParseError> where Self: Sized;
    fn as_bytes(&self) -> Vec<u8>;
}


#[pso_message(0x40)]
pub struct PlayerWalking {
    x: f32,
    y: f32,
    z: f32,
}

#[pso_message(0x42)]
pub struct PlayerRunning {
    x: f32,
    z: f32,
}

#[pso_message(0x3E)]
pub struct PlayerStopped {
    unknown1: u32,
    unknown2: u32,
    x: f32,
    y: f32,
    z: f32,
}

#[pso_message(0x1F)]
pub struct PlayerChangedMap {
    unknown1: u32,
    unknown2: u32,
    x: f32,
    y: f32,
    z: f32,
}

#[pso_message(0x1F)]
pub struct PlayerChangedMap2 {
    unknown1: u32,
}

#[pso_message(0x20)]
pub struct TellOtherPlayerMyLocation {
    unknown1: u32,
    unknown2: u32,
    x: f32,
    y: f32,
    z: f32,
}

#[pso_message(0x3F)]
pub struct PlayerLoadedIn {
    unknown1: u32,
    unknown2: u32,
    x: f32,
    y: f32,
    z: f32,
}


#[pso_message(0x23)]
pub struct PlayerDoneChangingMap {

}

#[pso_message(0x75)]
pub struct PlayerChangedFloor {
    map: u32,
}


#[pso_message(0x52)]
pub struct TalkToNpc {
    unknown1: u32,
    unknown2: u32,
}

#[pso_message(0x58)]
pub struct LobbyEmote {
    emote: u32,
}

#[pso_message(0xAE)]
pub struct UnknownAE {
    unknown1: u32,
    unknown2: u32,
    unknown3: u32,
}

#[pso_message(0xAB)]
pub struct PhotonChairSit {
    unknown1: u32,
}

#[pso_message(0xAF)]
pub struct PhotonChairTurn {
    unknown1: u32,
}

#[pso_message(0xB0)]
pub struct PhotonChairMove {
    unknown1: u32,
}

#[pso_message(0x3B)]
pub struct PlayerSpawnedIntoArea {

}

#[pso_message(0xC8)]
pub struct RequestExp {
    enemy_id: u16,
    client_id: u8,
    unused: u8,
    last_hitter: u32,
}


#[pso_message(0x60)]
pub struct RequestItem {
    area: u8,
    pt_index: u8,
    enemy_id: u16,
    x: f32,
    z: f32,
    y: f32,
}

#[pso_message(0x76)]
pub struct KillMonster {
    _unknown: [u8; 4],
}

#[pso_message(0x43)]
pub struct ComboStep1 {

}

#[pso_message(0x44)]
pub struct ComboStep2 {

}

#[pso_message(0x45)]
pub struct ComboStep3 {

}

#[pso_message(0x46)]
pub struct ComboStepDone {

}

#[pso_message(0x8D)]
pub struct PlayerTechStart {

}

#[pso_message(0x47)]
pub struct PlayerTechCast {
    technique: u8,
    unknown1: u8,
    unknown2: u8,
    num_of_targets: u8,
}

#[pso_message(0x48)]
pub struct PlayerTechDone {

}

#[pso_message(0x0A)]
pub struct MobAttack {

}

#[pso_message(0x4A)]
pub struct PlayerBlockedDamage {

}


#[pso_message(0x83)]
pub struct PlayerTrapSet {
    trap_type: u16,
    trap_count: u16,
}

#[pso_message(0x80)]
pub struct PlayerTrapActivate {

}

#[pso_message(0x06)]
pub struct GuildcardSend {

}

#[pso_message(0x06)]
pub struct GuildcardRecv {
    guildcard: u32,
    name: [u16; 0x18],
    team: [u16; 0x10],
    desc: [u16; 0x58],
    one: u8,
    language: u8,
    section_id: u8,
    class: u8,
}


#[derive(Debug, Clone, PartialEq)]
pub enum GameMessage {
    PlayerWalking(PlayerWalking),
    PlayerRunning(PlayerRunning),
    PlayerStopped(PlayerStopped),
    PlayerLoadedIn(PlayerLoadedIn),
    PlayerChangedMap(PlayerChangedMap),
    PlayerChangedMap2(PlayerChangedMap2),
    PlayerDoneChangingMap(PlayerDoneChangingMap),
    PlayerChangedFloor(PlayerChangedFloor),
    TellOtherPlayerMyLocation(TellOtherPlayerMyLocation),
    LobbyEmote(LobbyEmote),
    TalkToNpc(TalkToNpc),
    UnknownAE(UnknownAE),
    PhotonChairSit(PhotonChairSit),
    PhotonChairTurn(PhotonChairTurn),
    PhotonChairMove(PhotonChairMove),
    PlayerSpawnedIntoArea(PlayerSpawnedIntoArea),
    RequestExp(RequestExp),
    RequestItem(RequestItem),
    KillMonster(KillMonster),
    ComboStep1(ComboStep1),
    ComboStep2(ComboStep2),
    ComboStep3(ComboStep3),
    ComboStepDone(ComboStepDone),
    PlayerTechStart(PlayerTechStart),
    PlayerTechCast(PlayerTechCast),
    PlayerTechDone(PlayerTechDone),
    MobAttack(MobAttack),
    PlayerBlockedDamage(PlayerBlockedDamage),
    PlayerTrapSet(PlayerTrapSet),
    PlayerTrapActivate(PlayerTrapActivate),
    GuildcardSend(GuildcardSend),
    GuildcardRecv(GuildcardRecv),
}

impl PSOPacketData for GameMessage {
    fn from_bytes<R: std::io::Read + std::io::Seek>(mut cur: &mut R) -> Result<Self, PacketParseError> {
        let mut byte = [0u8; 1];
        let mut len = [0u8; 1];
        cur.read(&mut byte);
        cur.read(&mut len);
        cur.seek(SeekFrom::Current(-2)); // Cursor doesn't implement Peek?
        match byte[0] {
            PlayerWalking::CMD => Ok(GameMessage::PlayerWalking(PlayerWalking::from_bytes(&mut cur)?)),
            PlayerRunning::CMD => Ok(GameMessage::PlayerRunning(PlayerRunning::from_bytes(&mut cur)?)),
            PlayerStopped::CMD => Ok(GameMessage::PlayerStopped(PlayerStopped::from_bytes(&mut cur)?)),
            PlayerLoadedIn::CMD => Ok(GameMessage::PlayerLoadedIn(PlayerLoadedIn::from_bytes(&mut cur)?)),
            PlayerChangedMap::CMD if len[0] == 6 => Ok(GameMessage::PlayerChangedMap(PlayerChangedMap::from_bytes(&mut cur)?)),
            PlayerChangedMap2::CMD if len[0] == 2 => Ok(GameMessage::PlayerChangedMap2(PlayerChangedMap2::from_bytes(&mut cur)?)),
            PlayerDoneChangingMap::CMD => Ok(GameMessage::PlayerDoneChangingMap(PlayerDoneChangingMap::from_bytes(&mut cur)?)),
            PlayerChangedFloor::CMD => Ok(GameMessage::PlayerChangedFloor(PlayerChangedFloor::from_bytes(&mut cur)?)),
            TellOtherPlayerMyLocation::CMD => Ok(GameMessage::TellOtherPlayerMyLocation(TellOtherPlayerMyLocation::from_bytes(&mut cur)?)),
            LobbyEmote::CMD => Ok(GameMessage::LobbyEmote(LobbyEmote::from_bytes(&mut cur)?)),
            TalkToNpc::CMD => Ok(GameMessage::TalkToNpc(TalkToNpc::from_bytes(&mut cur)?)),
            UnknownAE::CMD => Ok(GameMessage::UnknownAE(UnknownAE::from_bytes(&mut cur)?)),
            PhotonChairSit::CMD => Ok(GameMessage::PhotonChairSit(PhotonChairSit::from_bytes(&mut cur)?)),
            PhotonChairTurn::CMD => Ok(GameMessage::PhotonChairTurn(PhotonChairTurn::from_bytes(&mut cur)?)),
            PhotonChairMove::CMD => Ok(GameMessage::PhotonChairMove(PhotonChairMove::from_bytes(&mut cur)?)),
            PlayerSpawnedIntoArea::CMD => Ok(GameMessage::PlayerSpawnedIntoArea(PlayerSpawnedIntoArea::from_bytes(&mut cur)?)),
            RequestExp::CMD => Ok(GameMessage::RequestExp(RequestExp::from_bytes(&mut cur)?)),
            RequestItem::CMD => Ok(GameMessage::RequestItem(RequestItem::from_bytes(&mut cur)?)),
            KillMonster::CMD => Ok(GameMessage::KillMonster(KillMonster::from_bytes(&mut cur)?)),
            ComboStep1::CMD => Ok(GameMessage::ComboStep1(ComboStep1::from_bytes(&mut cur)?)),
            ComboStep2::CMD => Ok(GameMessage::ComboStep2(ComboStep2::from_bytes(&mut cur)?)),
            ComboStep3::CMD => Ok(GameMessage::ComboStep3(ComboStep3::from_bytes(&mut cur)?)),
            ComboStepDone::CMD => Ok(GameMessage::ComboStepDone(ComboStepDone::from_bytes(&mut cur)?)),
            PlayerTechStart::CMD => Ok(GameMessage::PlayerTechStart(PlayerTechStart::from_bytes(&mut cur)?)),
            PlayerTechCast::CMD => Ok(GameMessage::PlayerTechCast(PlayerTechCast::from_bytes(&mut cur)?)),
            PlayerTechDone::CMD => Ok(GameMessage::PlayerTechDone(PlayerTechDone::from_bytes(&mut cur)?)),
            MobAttack::CMD => Ok(GameMessage::MobAttack(MobAttack::from_bytes(&mut cur)?)),
            PlayerBlockedDamage::CMD => Ok(GameMessage::PlayerBlockedDamage(PlayerBlockedDamage::from_bytes(&mut cur)?)),
            PlayerTrapSet::CMD => Ok(GameMessage::PlayerTrapSet(PlayerTrapSet::from_bytes(&mut cur)?)),
            PlayerTrapActivate::CMD => Ok(GameMessage::PlayerTrapActivate(PlayerTrapActivate::from_bytes(&mut cur)?)),
            GuildcardSend::CMD => Ok(GameMessage::GuildcardSend(GuildcardSend::from_bytes(&mut cur)?)),
            GuildcardRecv::CMD => Ok(GameMessage::GuildcardRecv(GuildcardRecv::from_bytes(&mut cur)?)),
            _ => Err(PacketParseError::UnknownMessage(byte[0],
                                                      {
                                                          let mut b = vec![0; len[0] as usize * 4];
                                                          cur.read(&mut b).unwrap();
                                                          b.to_vec()
                                                      }
            )),
        }
    }
    fn as_bytes(&self) -> Vec<u8> {
        match self {
            GameMessage::PlayerWalking(data) => data.as_bytes(),
            GameMessage::PlayerRunning(data) => data.as_bytes(),
            GameMessage::PlayerStopped(data) => data.as_bytes(),
            GameMessage::PlayerLoadedIn(data) => data.as_bytes(),
            GameMessage::PlayerChangedMap(data) => data.as_bytes(),
            GameMessage::PlayerChangedMap2(data) => data.as_bytes(),
            GameMessage::PlayerDoneChangingMap(data) => data.as_bytes(),
            GameMessage::TellOtherPlayerMyLocation(data) => data.as_bytes(),
            GameMessage::LobbyEmote(data) => data.as_bytes(),
            GameMessage::TalkToNpc(data) => data.as_bytes(),
            GameMessage::UnknownAE(data) => data.as_bytes(),
            GameMessage::PhotonChairSit(data) => data.as_bytes(),
            GameMessage::PhotonChairTurn(data) => data.as_bytes(),
            GameMessage::PhotonChairMove(data) => data.as_bytes(),
            GameMessage::PlayerSpawnedIntoArea(data) => data.as_bytes(),
            GameMessage::RequestExp(data) => data.as_bytes(),
            GameMessage::RequestItem(data) => data.as_bytes(),
            GameMessage::KillMonster(data) => data.as_bytes(),
            GameMessage::ComboStep1(data) => data.as_bytes(),
            GameMessage::ComboStep2(data) => data.as_bytes(),
            GameMessage::ComboStep3(data) => data.as_bytes(),
            GameMessage::ComboStepDone(data) => data.as_bytes(),
            GameMessage::PlayerTechStart(data) => data.as_bytes(),
            GameMessage::PlayerTechCast(data) => data.as_bytes(),
            GameMessage::PlayerTechDone(data) => data.as_bytes(),
            GameMessage::MobAttack(data) => data.as_bytes(),
            GameMessage::PlayerBlockedDamage(data) => data.as_bytes(),
            GameMessage::PlayerTrapSet(data) => data.as_bytes(),
            GameMessage::PlayerTrapActivate(data) => data.as_bytes(),
            GameMessage::PlayerChangedFloor(data) => data.as_bytes(),
            GameMessage::GuildcardSend(data) => data.as_bytes(),
            GameMessage::GuildcardRecv(data) => data.as_bytes(),
        }
    }
}