use crate::app_interface::{LearnedMove, MoveData, Pokemon};
use crate::handling::Script;
use alloc::rc::Rc;

#[cfg_attr(feature = "mock_data", mockall::automock)]
pub trait ExecutingMoveTrait {
    fn number_of_hits(&self) -> u8;
    fn user(&self) -> Pokemon;
    fn chosen_move(&self) -> LearnedMove;
    fn use_move(&self) -> MoveData;
    fn move_script<'a>(&'a self) -> Option<&'a dyn Script>;
    fn number_of_targets(&self) -> usize;
    fn is_pokemon_target(&self, pokemon: &Pokemon) -> bool;
    fn get_hit_data(&self, pokemon: &Pokemon, hit: u8) -> HitData;
}

#[cfg_attr(feature = "mock_data", mockall::automock)]
pub trait HitDataTrait {
    fn is_critical(&self) -> bool;
    fn base_power(&self) -> u8;
    fn effectiveness(&self) -> f32;
    fn damage(&self) -> u32;
    fn move_type(&self) -> u8;
    fn has_failed(&self) -> bool;
    fn set_critical(&self, critical: bool);
    fn set_effectiveness(&self, effectiveness: f32);
    fn set_damage(&self, damage: u32);
    fn set_move_type(&self, move_type: u8);
    fn fail(&self);
}

pub type ExecutingMove = Rc<dyn ExecutingMoveTrait>;
#[cfg(feature = "mock_data")]
pub type MockExecutingMove = MockExecutingMoveTrait;

pub type HitData = Rc<dyn HitDataTrait>;
#[cfg(feature = "mock_data")]
pub type MockHitData = MockHitDataTrait;

#[cfg(not(feature = "mock_data"))]
pub use implementation::*;

#[cfg(not(feature = "mock_data"))]
mod implementation {
    use super::*;
    use crate::app_interface::{LearnedMoveImpl, MoveDataImpl, PokemonImpl};
    use crate::cached_value;
    use crate::handling::cached_value::CachedValue;
    use crate::handling::extern_ref::{ExternRef, ExternalReferenceType};
    use crate::handling::temporary::Temporary;

    #[derive(Clone)]
    pub struct ExecutingMoveImpl {
        inner: Temporary<ExecutingMoveInner>,
    }

    struct ExecutingMoveInner {
        reference: ExternRef<ExecutingMoveImpl>,
        number_of_hits: CachedValue<u8>,
        user: CachedValue<Pokemon>,
        chosen_move: CachedValue<Rc<LearnedMoveImpl>>,
        use_move: CachedValue<MoveData>,
    }

    impl ExecutingMoveImpl {
        #[cfg(not(feature = "mock_data"))]
        pub(crate) fn new(reference: ExternRef<Self>) -> Self {
            Self {
                inner: Temporary::new(
                    reference.get_internal_index(),
                    ExecutingMoveInner {
                        reference,
                        number_of_hits: cached_value!({
                            executing_move_get_number_of_hits(reference)
                        }),
                        user: cached_value!({
                            Rc::new(executing_move_get_user(reference).get_value().unwrap())
                        }),
                        chosen_move: cached_value!({
                            Rc::new(
                                executing_move_get_chosen_move(reference)
                                    .get_value()
                                    .unwrap(),
                            )
                        }),
                        use_move: cached_value!({
                            Rc::new(executing_move_get_use_move(reference).get_value().unwrap())
                        }),
                    },
                ),
            }
        }
    }

    #[cfg(not(feature = "mock_data"))]
    impl ExecutingMoveTrait for ExecutingMoveImpl {
        fn number_of_hits(&self) -> u8 {
            self.inner.value().number_of_hits.value()
        }
        fn user(&self) -> Pokemon {
            self.inner.value().user.value()
        }
        fn chosen_move(&self) -> LearnedMove {
            self.inner.value().chosen_move.value()
        }
        fn use_move(&self) -> MoveData {
            self.inner.value().use_move.value()
        }
        fn move_script(&self) -> Option<&dyn Script> {
            unsafe { executing_move_get_script(self.inner.value().reference).as_ref() }
        }
        fn number_of_targets(&self) -> usize {
            unsafe { executing_move_get_number_of_targets(self.inner.value().reference) }
        }
        fn is_pokemon_target(&self, pokemon: &Pokemon) -> bool {
            unsafe {
                executing_move_is_pokemon_target(
                    self.inner.value().reference,
                    pokemon.reference().into(),
                )
            }
        }
        fn get_hit_data(&self, pokemon: &Pokemon, hit: u8) -> HitData {
            unsafe {
                Rc::new(
                    executing_move_get_hit_data(
                        self.inner.value().reference,
                        pokemon.reference().into(),
                        hit,
                    )
                    .get_value()
                    .unwrap(),
                )
            }
        }
    }

    #[derive(Clone)]
    pub struct HitDataImpl {
        reference: ExternRef<HitDataImpl>,
    }

    #[cfg(not(feature = "mock_data"))]
    impl HitDataTrait for HitDataImpl {
        fn is_critical(&self) -> bool {
            unsafe { hit_data_is_critical(self.reference) }
        }
        fn base_power(&self) -> u8 {
            unsafe { hit_data_get_base_power(self.reference) }
        }
        fn effectiveness(&self) -> f32 {
            unsafe { hit_data_get_effectiveness(self.reference) }
        }
        fn damage(&self) -> u32 {
            unsafe { hit_data_get_damage(self.reference) }
        }
        fn move_type(&self) -> u8 {
            unsafe { hit_data_get_move_type(self.reference) }
        }
        fn has_failed(&self) -> bool {
            unsafe { hit_data_is_critical(self.reference) }
        }

        fn set_critical(&self, critical: bool) {
            unsafe { hit_data_set_critical(self.reference, critical) }
        }
        fn set_effectiveness(&self, effectiveness: f32) {
            unsafe { hit_data_set_effectiveness(self.reference, effectiveness) }
        }
        fn set_damage(&self, damage: u32) {
            unsafe { hit_data_set_damage(self.reference, damage) }
        }
        fn set_move_type(&self, move_type: u8) {
            unsafe { hit_data_set_move_type(self.reference, move_type) }
        }
        fn fail(&self) {
            unsafe { hit_data_fail(self.reference) }
        }
    }

    #[cfg(not(feature = "mock_data"))]
    impl ExternalReferenceType for ExecutingMoveImpl {
        fn from_extern_value(reference: ExternRef<Self>) -> Self {
            Self::new(reference)
        }
    }

    #[cfg(not(feature = "mock_data"))]
    impl ExternalReferenceType for HitDataImpl {
        fn from_extern_value(reference: ExternRef<Self>) -> Self {
            Self { reference }
        }
    }

    #[cfg(not(feature = "mock_data"))]
    extern "wasm" {
        fn executing_move_get_number_of_targets(r: ExternRef<ExecutingMoveImpl>) -> usize;
        fn executing_move_get_number_of_hits(r: ExternRef<ExecutingMoveImpl>) -> u8;
        fn executing_move_get_user(r: ExternRef<ExecutingMoveImpl>) -> ExternRef<PokemonImpl>;
        fn executing_move_get_chosen_move(
            r: ExternRef<ExecutingMoveImpl>,
        ) -> ExternRef<LearnedMoveImpl>;
        fn executing_move_get_use_move(r: ExternRef<ExecutingMoveImpl>) -> ExternRef<MoveDataImpl>;
        #[allow(improper_ctypes)]
        fn executing_move_get_script(r: ExternRef<ExecutingMoveImpl>) -> *const dyn Script;

        fn executing_move_is_pokemon_target(
            r: ExternRef<ExecutingMoveImpl>,
            pokemon: ExternRef<PokemonImpl>,
        ) -> bool;
        fn executing_move_get_hit_data(
            r: ExternRef<ExecutingMoveImpl>,
            target: ExternRef<PokemonImpl>,
            hit: u8,
        ) -> ExternRef<HitDataImpl>;

        fn hit_data_is_critical(r: ExternRef<HitDataImpl>) -> bool;
        fn hit_data_get_base_power(r: ExternRef<HitDataImpl>) -> u8;
        fn hit_data_get_effectiveness(r: ExternRef<HitDataImpl>) -> f32;
        fn hit_data_get_damage(r: ExternRef<HitDataImpl>) -> u32;
        fn hit_data_get_move_type(r: ExternRef<HitDataImpl>) -> u8;
        fn hit_data_has_failed(r: ExternRef<HitDataImpl>) -> bool;

        fn hit_data_set_critical(r: ExternRef<HitDataImpl>, critical: bool);
        fn hit_data_set_base_power(r: ExternRef<HitDataImpl>, power: u8);
        fn hit_data_set_effectiveness(r: ExternRef<HitDataImpl>, effectiveness: f32);
        fn hit_data_set_damage(r: ExternRef<HitDataImpl>, damage: u32);
        fn hit_data_set_move_type(r: ExternRef<HitDataImpl>, move_type: u8);
        fn hit_data_fail(r: ExternRef<HitDataImpl>);
    }
}