use elseware::common::serverstate::{ClientId, ServerState};
use elseware::entity::character::{CharacterClass};
use elseware::entity::gateway::{EntityGateway, InMemoryGateway};
use elseware::common::leveltable::CharacterLevelTable;
use elseware::ship::ship::{ShipServerState, SendShipPacket, RecvShipPacket};
use elseware::ship::monster::MonsterType;
use elseware::entity::item;
use elseware::ship::room::{Difficulty};

use libpso::packet::ship::*;
use libpso::packet::messages::*;

#[path = "common.rs"]
mod common;
use common::*;

#[async_std::test]
async fn test_character_gains_exp() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, _char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room(&mut ship, ClientId(1), "room", "").await;

    let (enemy_id, exp) = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let (enemy_id, map_enemy) = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).map(|enemy| {
                (i, enemy)
            }).ok()
        }).next().unwrap();
        let map_enemy_stats = room.monster_stats.get(&map_enemy.monster).unwrap();
        (enemy_id, map_enemy_stats.exp)
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::RequestExp(RequestExp{
        client: enemy_id as u8,
        target: 16,
        enemy_id: enemy_id as u16,
        client_id: 0,
        unused: 0,
        last_hitter: 1,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(exp == c1.character.exp);
}

#[async_std::test]
async fn test_character_levels_up() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, mut char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    char1.exp = 49;
    entity_gateway.save_character(&char1).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room(&mut ship, ClientId(1), "room", "").await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).map(|_| {
                i
            }).ok()
        }).next().unwrap()
    };

    let levelup_pkt = ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::RequestExp(RequestExp{
        client: enemy_id as u8,
        target: 16,
        enemy_id: enemy_id as u16,
        client_id: 0,
        unused: 0,
        last_hitter: 1,
    })))).await.unwrap().collect::<Vec<_>>();

    assert!(matches!(levelup_pkt[1].1, SendShipPacket::Message(Message {msg: GameMessage::PlayerLevelUp(PlayerLevelUp {lvl: 2, ..})})));

    let leveltable = CharacterLevelTable::default();
    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(leveltable.get_level_from_exp(c1.character.char_class, c1.character.exp) == 2);
}

#[async_std::test]
async fn test_character_levels_up_multiple_times() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, _char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room(&mut ship, ClientId(1), "room", "").await;

    let (enemy_id, exp) = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let (enemy_id, map_enemy) = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::DarkFalz2 {
                    Some((i, enemy))
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        let map_enemy_stats = room.monster_stats.get(&map_enemy.monster).unwrap();
        (enemy_id, map_enemy_stats.exp)
    };

    let levelup_pkt = ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::RequestExp(RequestExp{
        client: enemy_id as u8,
        target: 16,
        enemy_id: enemy_id as u16,
        client_id: 0,
        unused: 0,
        last_hitter: 1,
    })))).await.unwrap().collect::<Vec<_>>();

    assert!(matches!(levelup_pkt[1].1, SendShipPacket::Message(Message {msg: GameMessage::PlayerLevelUp(PlayerLevelUp {lvl: 8, ..})})));

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(exp == c1.character.exp);
}

#[async_std::test]
async fn test_one_character_gets_full_exp_and_other_attacker_gets_partial() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, _char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    let (_user2, _char2) = new_user_character(&mut entity_gateway, "a2", "a", 1).await;

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    log_in_char(&mut ship, ClientId(2), "a2", "a").await;

    join_lobby(&mut ship, ClientId(1)).await;
    join_lobby(&mut ship, ClientId(2)).await;

    create_room(&mut ship, ClientId(1), "room", "").await;
    join_room(&mut ship, ClientId(2), 0).await;

    let (enemy_id, exp) = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let (enemy_id, map_enemy) = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::DarkFalz2 {
                    Some((i, enemy))
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        let map_enemy_stats = room.monster_stats.get(&map_enemy.monster).unwrap();
        (enemy_id, map_enemy_stats.exp)
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::RequestExp(RequestExp{
        client: enemy_id as u8,
        target: 16,
        enemy_id: enemy_id as u16,
        client_id: 0,
        unused: 0,
        last_hitter: 1,
    })))).await.unwrap().for_each(drop);

    ship.handle(ClientId(2), &RecvShipPacket::Message(Message::new(GameMessage::RequestExp(RequestExp{
        client: enemy_id as u8,
        target: 16,
        enemy_id: enemy_id as u16,
        client_id: 0,
        unused: 0,
        last_hitter: 0,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    let c2 = ship.clients.get(&ClientId(2)).unwrap();
    assert!(c1.character.exp == exp);
    assert!(c2.character.exp == (exp as f32 * 0.8) as u32);
}

#[async_std::test]
async fn test_exp_steal_min_1() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room(&mut ship, ClientId(1), "room", "").await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(c1.character.exp == 1);
}

#[async_std::test]
async fn test_exp_steal_max_80() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, mut char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    char1.exp = 80000000;
    char1.char_class = CharacterClass::HUcast;
    entity_gateway.save_character(&char1).await.unwrap();

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());

    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room_with_difficulty(&mut ship, ClientId(1), "room", "", Difficulty::Ultimate).await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(c1.character.exp == 80000080);
}

#[async_std::test]
async fn test_exp_steal_android_boost_in_ultimate() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, mut char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    char1.exp = 80000000;
    char1.char_class = CharacterClass::HUcast;
    entity_gateway.save_character(&char1).await.unwrap();

    let (_user2, mut char2) = new_user_character(&mut entity_gateway, "a2", "a", 1).await;
    char2.exp = 80000000;
    char2.char_class = CharacterClass::HUmar;
    entity_gateway.save_character(&char2).await.unwrap();

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut p2_inv = Vec::new();
    p2_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p2_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char2.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char2.id, &item::InventoryEntity::new(p2_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());

    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room_with_difficulty(&mut ship, ClientId(1), "room", "", Difficulty::Ultimate).await;
    log_in_char(&mut ship, ClientId(2), "a2", "a").await;
    join_lobby(&mut ship, ClientId(2)).await;
    join_room(&mut ship, ClientId(2), 0).await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    ship.handle(ClientId(2), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    let c2 = ship.clients.get(&ClientId(2)).unwrap();
    println!("c1 exp: {:?}, c2 exp: {:?}", c1.character.exp, c2.character.exp);
    assert!(c1.character.exp == 80000080);
    assert!(c2.character.exp == 80000032);
}

#[async_std::test]
async fn test_exp_steal_no_android_boost_in_vhard() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, mut char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    char1.exp = 80000000;
    char1.char_class = CharacterClass::HUcast;
    entity_gateway.save_character(&char1).await.unwrap();

    let (_user2, mut char2) = new_user_character(&mut entity_gateway, "a2", "a", 1).await;
    char2.exp = 80000000;
    char2.char_class = CharacterClass::HUmar;
    entity_gateway.save_character(&char2).await.unwrap();

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut p2_inv = Vec::new();
    p2_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p2_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char2.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char2.id, &item::InventoryEntity::new(p2_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());

    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room_with_difficulty(&mut ship, ClientId(1), "room", "", Difficulty::VeryHard).await;
    log_in_char(&mut ship, ClientId(2), "a2", "a").await;
    join_lobby(&mut ship, ClientId(2)).await;
    join_room(&mut ship, ClientId(2), 0).await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    ship.handle(ClientId(2), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    let c2 = ship.clients.get(&ClientId(2)).unwrap();
    println!("c1 exp: {:?}, c2 exp: {:?}", c1.character.exp, c2.character.exp);
    assert!(c1.character.exp == 80000010);
    assert!(c2.character.exp == 80000010);
}

#[async_std::test]
async fn test_exp_steal_multihit_penalty() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, mut char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    char1.exp = 80000000;
    char1.char_class = CharacterClass::HUcast;
    entity_gateway.save_character(&char1).await.unwrap();

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Dagger,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());
    
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Mechgun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());
    
    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());

    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room_with_difficulty(&mut ship, ClientId(1), "room", "", Difficulty::Ultimate).await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(c1.character.exp == 80000040);

    // change equipped item
    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::PlayerEquipItem(PlayerEquipItem {
        client: 0,
        target: 0,
        item_id: 0x10001,
        sub_menu: 9,
        unknown1: 0,
    })))).await.unwrap().for_each(drop);

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(c1.character.exp == 80000066);
}

#[async_std::test]
async fn test_cannot_steal_exp_from_boss() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room(&mut ship, ClientId(1), "room", "").await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Dragon {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
        client: 0,
        target: 0,
        client2: enemy_id as u8,
        target2: 16,
        enemy_id: enemy_id as u16,
    })))).await.unwrap().for_each(drop);

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(c1.character.exp == 0);
}

#[async_std::test]
async fn test_exp_steal_doesnt_exceed_100p() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());
    
    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room(&mut ship, ClientId(1), "room", "").await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    for _ in 0..10 {
        ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
            client: 0,
            target: 0,
            client2: enemy_id as u8,
            target2: 16,
            enemy_id: enemy_id as u16,
        })))).await.unwrap().for_each(drop);
    }

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    assert!(c1.character.exp == 5);
}

#[async_std::test]
async fn test_each_client_can_steal_full_exp_from_same_enemy() {
    let mut entity_gateway = InMemoryGateway::default();

    let (_user1, char1) = new_user_character(&mut entity_gateway, "a1", "a", 1).await;
    let (_user2, char2) = new_user_character(&mut entity_gateway, "a2", "a", 1).await;
    entity_gateway.save_character(&char1).await.unwrap();
    entity_gateway.save_character(&char2).await.unwrap();

    let mut p1_inv = Vec::new();
    p1_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p1_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char1.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char1.id, &item::InventoryEntity::new(p1_inv)).await.unwrap();

    let mut p2_inv = Vec::new();
    p2_inv.push(entity_gateway.create_item(
        item::NewItemEntity {
            item: item::ItemDetail::Weapon(
                item::weapon::Weapon {
                    weapon: item::weapon::WeaponType::Raygun,
                    grind: 5,
                    special: Some(item::weapon::WeaponSpecial::Kings),
                    attrs: [Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Hit, value: 100}),
                            Some(item::weapon::WeaponAttribute{attr: item::weapon::Attribute::Dark, value: 30}),
                            None,],
                    tekked: true,
                }
            ),
        }).await.unwrap());

    let equipped = item::EquippedEntity {
        weapon: Some(p2_inv[0].id),
        armor: None,
        shield: None,
        unit: [None; 4],
        mag: None,
    };
    entity_gateway.set_character_equips(&char2.id, &equipped).await.unwrap();
    entity_gateway.set_character_inventory(&char2.id, &item::InventoryEntity::new(p2_inv)).await.unwrap();

    let mut ship = Box::new(ShipServerState::builder()
        .gateway(entity_gateway.clone())
        .build());

    log_in_char(&mut ship, ClientId(1), "a1", "a").await;
    join_lobby(&mut ship, ClientId(1)).await;
    create_room_with_difficulty(&mut ship, ClientId(1), "room", "", Difficulty::Normal).await;
    log_in_char(&mut ship, ClientId(2), "a2", "a").await;
    join_lobby(&mut ship, ClientId(2)).await;
    join_room(&mut ship, ClientId(2), 0).await;

    let enemy_id = {
        let room = ship.blocks.0[0].rooms[0].as_ref().unwrap();
        let enemy_id = (0..).filter_map(|i| {
            room.maps.enemy_by_id(i).ok().and_then(|enemy| {
                if enemy.monster == MonsterType::Booma {
                    Some(i)
                }
                else {
                    None
                }
            })
        }).next().unwrap();
        enemy_id
    };

    for _ in 0..10 {
        ship.handle(ClientId(1), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
            client: 0,
            target: 0,
            client2: enemy_id as u8,
            target2: 16,
            enemy_id: enemy_id as u16,
        })))).await.unwrap().for_each(drop);

        ship.handle(ClientId(2), &RecvShipPacket::Message(Message::new(GameMessage::ExperienceSteal(ExperienceSteal{
            client: 0,
            target: 0,
            client2: enemy_id as u8,
            target2: 16,
            enemy_id: enemy_id as u16,
        })))).await.unwrap().for_each(drop);
    }

    let c1 = ship.clients.get(&ClientId(1)).unwrap();
    let c2 = ship.clients.get(&ClientId(2)).unwrap();
    println!("c1 exp: {:?}, c2 exp: {:?}", c1.character.exp, c2.character.exp);
    assert!(c1.character.exp == 5);
    assert!(c2.character.exp == 5);

}