use godot::{
    classes::{
        Camera3D, CharacterBody3D, CollisionShape3D, ICharacterBody3D, Label3D, Sprite3D,
        TextureProgressBar,
    },
    obj::WithBaseField,
    prelude::*,
};

use crate::{
    game_manager::Game,
    killbox::KillboxKind,
    player::{
        DamageSource, DamageSourceSignal, IPlayer, NetTransform, PlayerCommon,
        effects::PlayerEffects,
        shootable::Shootable,
        soldier_mesh::SoldierMesh,
        weapon::{Weapon, WeaponType},
    },
};

#[derive(GodotClass)]
#[class(base=CharacterBody3D, init)]
pub struct RemotePlayer {
    #[export]
    move_speed: f32,
    #[export]
    soldier_mesh: Option<Gd<SoldierMesh>>,
    #[export]
    collider: Option<Gd<CollisionShape3D>>,
    #[export]
    effects: Option<Gd<PlayerEffects>>,
    #[export]
    health: i32,
    #[export]
    punch_cooldown: f64,
    #[export]
    pub spectator_camera: Option<Gd<Camera3D>>,
    #[export]
    camera_origin: Option<Gd<Node3D>>,
    #[export]
    name_label: Option<Gd<Label3D>>,
    #[export]
    health_bar: Option<Gd<TextureProgressBar>>,
    #[export]
    health_bar_sprite: Option<Gd<Sprite3D>>,

    pub player_id: Option<u16>,
    pub player_name: String,
    pub player_color: Color,
    pub replay_mode: bool,

    movement_dir: Vector3,
    y_speed: f32,
    look_up: f32,

    is_dead: bool,
    dead_for: f64,

    punch_cd_remaining: f64,

    base: Base<CharacterBody3D>,
}

#[godot_dyn]
impl IPlayer for RemotePlayer {
    fn get_y_speed(&self) -> f32 {
        self.y_speed
    }

    fn set_y_speed(&mut self, speed: f32) {
        self.y_speed = speed;
    }

    fn get_movement_dir(&self) -> Vector3 {
        self.movement_dir
    }

    fn set_movement_dir(&mut self, dir: Vector3) {
        self.movement_dir = dir.into();
    }

    fn get_move_speed(&self) -> f32 {
        self.move_speed
    }

    fn get_player_id(&self) -> Option<u16> {
        self.player_id
    }

    fn apply_transform(&mut self, transform: NetTransform) {
        self.base_mut()
            .set_global_position(transform.location.into());
        self.base_mut()
            .set_global_rotation(transform.rotation.into());
    }

    fn apply_position(&mut self, pos: Vector3) {
        self.base_mut().set_global_position(pos);
    }

    fn apply_rotation(&mut self, rot: Vector3) {
        self.base_mut().set_global_rotation(rot);
    }

    fn get_transform(&self) -> NetTransform {
        NetTransform {
            location: self.base().get_global_position().into(),
            rotation: self.base().get_global_rotation().into(),
        }
    }

    fn jump(&mut self) {
        if self.try_jump() {
            if let Some(effects) = &mut self.effects {
                effects.bind_mut().jump();
            }
        }
    }

    fn get_look_up(&self) -> f32 {
        self.look_up
    }

    fn apply_look_up(&mut self, look: f32) {
        self.look_up = look;
    }

    fn try_shoot(&mut self, to: Vector3, deal_damage: bool) -> bool {
        self.try_shoot_common(to, deal_damage)
    }

    fn try_punch(&mut self, to: Vector3, deal_damage: bool) -> bool {
        if self.punch_cd_remaining <= 0. {
            self.punch_cd_remaining = self.punch_cooldown;
            self.try_punch_common(to, deal_damage)
        } else {
            false
        }
    }

    fn take_damage(&mut self, source: DamageSource, damage: i32, kill: bool) {
        self.run_deferred(move |s| {
            if s.can_take_damage(&source) {
                let (signal, player, kind) = source.into_signal();
                s.run_deferred(move |s| {
                    s.signals()
                        .on_take_damage()
                        .emit(signal, player, kind, damage)
                });
                s.health -= damage;
                if kill && s.health <= 0 {
                    s.kill(source);
                }
            }
            if let Some(health_bar) = &mut s.health_bar {
                let value = (s.health as f64 / 100.).clamp(0., 1.) * 100.;
                health_bar.set_value(value);
            }
        });
    }

    fn is_dead(&self) -> bool {
        self.is_dead
    }

    fn dead_for(&self) -> f64 {
        self.dead_for
    }

    fn kill(&mut self, source: DamageSource) {
        if !self.replay_mode {
            self.drop_ball(false);
        }

        let (signal, player, kind) = source.into_signal();
        self.run_deferred(move |s| s.signals().on_die().emit(signal, player, kind));
        if let Some(mut mesh) = self.soldier_mesh.take() {
            mesh.queue_free();
        }
        if let Some(mut collider) = self.collider.take() {
            collider.queue_free();
        }
        if let Some(effects) = &mut self.effects {
            effects.bind_mut().death();
        }
        if let Some(mut name) = self.name_label.take() {
            name.queue_free();
        }
        if let Some(healthbar_sprit) = &mut self.health_bar_sprite {
            healthbar_sprit.set_visible(false);
        }
        self.is_dead = true;
    }

    fn swap_weapon(&mut self, weapon: WeaponType, drop_ball: bool) {
        if drop_ball {
            self.drop_ball(true);
        }

        if let Some(mesh) = &mut self.soldier_mesh {
            match weapon {
                WeaponType::Raygun => mesh.bind_mut().spawn_raygun(),
                WeaponType::Shotgun => mesh.bind_mut().spawn_shotgun(),
                WeaponType::Ball => mesh.bind_mut().spawn_ball(),
            };
        }
    }

    fn get_weapon(&self) -> Option<DynGd<Node3D, dyn Weapon>> {
        self.soldier_mesh
            .as_ref()
            .and_then(|m| m.bind().get_weapon())
    }

    fn take_weapon(&mut self) -> Option<DynGd<Node3D, dyn Weapon>> {
        self.soldier_mesh
            .as_mut()
            .and_then(|m| m.bind_mut().take_weapon().cloned())
    }

    fn drop_ball(&mut self, with_velocity: bool) -> bool {
        self.drop_ball_common(with_velocity)
    }

    fn get_camera_origin(&self) -> Option<Gd<Node3D>> {
        self.camera_origin.clone()
    }

    fn is_replay_mode(&self) -> bool {
        self.replay_mode
    }

    fn get_health(&self) -> i32 {
        self.health
    }
}

#[godot_api]
impl ICharacterBody3D for RemotePlayer {
    fn ready(&mut self) {
        self.run_deferred(|s| {
            if let Some(name_label) = &mut s.name_label {
                name_label.set_text(&s.player_name);
                name_label.set_modulate(s.player_color);
            }
        });

        self.swap_weapon(WeaponType::Raygun, false);
    }

    fn process(&mut self, delta: f64) {
        self.punch_cd_remaining -= delta;

        if self.is_dead {
            self.dead_for += delta;
        }

        if let Some(mesh) = &mut self.soldier_mesh {
            mesh.bind_mut()
                .update_movement(Vector2::new(self.movement_dir.x, -self.movement_dir.z));

            mesh.bind_mut().update_y_look(self.look_up);
        }

        if let Some(ball_origin) = &mut self.camera_origin {
            ball_origin.set_rotation(Vector3::RIGHT * self.look_up);
        }

        if self.movement_dir.length_squared() > 0.
            && self.base().is_on_floor()
            && !self.is_dead
            && let Some(effects) = &mut self.effects
        {
            effects.bind_mut().walk();
        }
    }

    fn physics_process(&mut self, delta: f64) {
        self.player_update(delta);
    }
}

#[godot_api]
impl RemotePlayer {
    #[signal]
    pub fn on_die(source: DamageSourceSignal, player: u16, killbox_kind: KillboxKind);
    #[signal]
    pub fn on_take_damage(
        source: DamageSourceSignal,
        source_player: u16,
        killbox_kind: KillboxKind,
        damage: i32,
    );
}

#[godot_dyn]
impl Shootable for RemotePlayer {
    fn on_shoot(&mut self, source: DamageSource, damage: i32, _: Vector3) {
        self.take_damage(source, damage, true);
    }
}