PkmnLib_rs/src/script_implementations/wasm/export_registry/dynamic_data/battle.rs

use crate::dynamic_data::{
    Battle, BattleParty, BattleRandom, BattleResult, BattleSide, ChoiceQueue, DynamicLibrary, Pokemon, PokemonParty,
};
use crate::script_implementations::wasm::export_registry::{register, WasmResult};
use crate::script_implementations::wasm::extern_ref::{ExternRef, VecExternRef};
use crate::script_implementations::wasm::script_resolver::WebAssemblyEnv;
use crate::StringKey;
use wasmer::FunctionEnvMut;

register! {
    fn battle_get_pokemon_per_side(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u8> {
        Ok(battle.value_func(&env)?.pokemon_per_side()).into()
    }

    fn battle_get_parties(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<VecExternRef<BattleParty>> {
        Ok(VecExternRef::new(env.data().data().as_ref(), battle.value_func(&env)?.parties())).into()
    }

    fn battle_get_choice_queue(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<ExternRef<ChoiceQueue>> {
        let queue = battle.value_func(&env)?.current_turn_queue().read();
        Ok(if let Some(queue) = queue.as_ref() {
            ExternRef::func_new(&env, queue)
        } else {
            ExternRef::null()
        }).into()
    }

    fn battle_get_library(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<ExternRef<dyn DynamicLibrary>> {
        Ok(ExternRef::func_new(&env, &battle.value_func(&env)?.library().clone())).into()
    }

    fn battle_get_sides(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<VecExternRef<BattleSide>> {
        Ok(VecExternRef::new(env.data().data().as_ref(), battle.value_func(&env)?.sides())).into()
    }

    fn battle_get_random(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<ExternRef<BattleRandom>> {
        Ok(ExternRef::func_new(&env, battle.value_func(&env)?.random())).into()
    }

    fn battle_get_weather_name(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<ExternRef<StringKey>> {
        let weather = battle.value_func(&env)?.weather_name()?;
        Ok(if let Some(weather) = weather {
            ExternRef::func_new(&env, &weather)
        } else {
            ExternRef::null()
        }).into()
    }

    fn battle_find_party_for_pokemon(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
        pokemon: ExternRef<Pokemon>
    ) -> WasmResult<ExternRef<BattleParty>> {
        let battle = battle.value_func(&env)?;
        let pokemon = pokemon.value_func(&env)?;
        for party in battle.parties() {
            if party.party().has_pokemon(pokemon) {
                return Ok(ExternRef::func_new(&env, party)).into();
            }
        }
        Ok(ExternRef::null()).into()
    }

    fn battle_get_pokemon(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
        side: u8, index: u8
    ) -> WasmResult<ExternRef<Pokemon>> {
        let battle = battle.value_func(&env)?;
        let pokemon = battle.get_pokemon(side, index);
        Ok(if let Some(pokemon) = pokemon {
            ExternRef::func_new(&env, &pokemon)
        } else {
            ExternRef::null()
        }).into()
    }

    fn battle_get_can_flee(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u8> {
        Ok(if battle.value_func(&env)?.can_flee() { 1 } else { 0 }).into()
    }

    fn battle_get_number_of_sides(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u8> {
        Ok(battle.value_func(&env)?.number_of_sides()).into()
    }

    fn battle_get_has_ended(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u8> {
        Ok(if battle.value_func(&env)?.has_ended() { 1 } else { 0 }).into()
    }

    fn battle_get_has_ended_conclusively(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u8> {
        Ok(if battle.value_func(&env)?.result().is_conclusive() { 1 } else { 0 }).into()
    }

    fn battle_get_winning_side(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u8> {
        Ok(if let BattleResult::Conclusive(result) = battle.value_func(&env)?.result() {
            result
        } else {
            0
        }).into()
    }

    fn battle_get_current_turn(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle: ExternRef<Battle>,
    ) -> WasmResult<u32> {
        Ok(battle.value_func(&env)?.current_turn()).into()
    }

    fn battle_party_get_party(
        env: FunctionEnvMut<WebAssemblyEnv>,
        battle_party: ExternRef<BattleParty>,
    ) -> WasmResult<ExternRef<PokemonParty>> {
        Ok(ExternRef::func_new(&env, battle_party.value_func(&env)?.party().as_ref())).into()
    }
}