use crate::defines::{LevelInt, MAX_MOVES};
use crate::dynamic_data::libraries::dynamic_library::DynamicLibrary;
use crate::dynamic_data::models::battle::Battle;
use crate::dynamic_data::models::battle_side::BattleSide;
use crate::dynamic_data::models::learned_move::LearnedMove;
use crate::dynamic_data::script_handling::script::Script;
use crate::dynamic_data::script_handling::script_set::ScriptSet;
use crate::static_data::items::item::Item;
use crate::static_data::species_data::ability_index::AbilityIndex;
use crate::static_data::species_data::form::Form;
use crate::static_data::species_data::gender::Gender;
use crate::static_data::species_data::species::Species;
use crate::static_data::statistic_set::StatisticSet;
use crate::static_data::statistics::Statistic;
use derive_getters::Getters;
use std::collections::HashSet;

#[derive(Getters)]
pub struct PokemonBattleData<'a> {
    battle: &'a Battle,
    battle_side: &'a BattleSide,
    on_battle_field: bool,
    seen_opponents: HashSet<Pokemon<'a>>,
}

#[derive(Getters)]
pub struct Pokemon<'a> {
    library: &'a DynamicLibrary<'a>,
    species: &'a Species<'a>,
    form: &'a Form<'a>,

    display_species: Option<&'a Species<'a>>,
    display_form: Option<&'a Form<'a>>,

    level: LevelInt,
    experience: u32,
    unique_identifier: u32,
    gender: Gender,
    coloring: u8,
    held_item: Option<&'a Item>,
    health: u32,

    stat_boost: StatisticSet<i8>,
    flat_stats: StatisticSet<u16>,
    boosted_stats: StatisticSet<u16>,

    nickname: Option<String>,

    ability_index: AbilityIndex,
    is_ability_overridden: bool,
    overridden_ability_name: String,

    battle_data: Option<PokemonBattleData<'a>>,

    moves: [Option<LearnedMove>; MAX_MOVES],
    allowed_experience: bool,

    types: Vec<u8>,

    ability_script: Option<Box<dyn Script>>,
    status_script: Option<Box<dyn Script>>,
    volatile: ScriptSet,
}

impl<'a> Pokemon<'a> {
    pub fn new(
        library: &'a DynamicLibrary,
        species: &'a Species,
        form: &'a Form,
        ability: AbilityIndex,
        level: LevelInt,
        unique_identifier: u32,
        gender: Gender,
        coloring: u8,
    ) -> Pokemon<'a> {
        // Calculate experience from the level for the specified growth rate.
        let experience = library
            .static_data()
            .growth_rates()
            .calculate_experience(species.growth_rate(), level);
        let health = form.get_base_stat(Statistic::HP) as u32;
        Pokemon {
            library,
            species,
            form,
            display_species: None,
            display_form: None,
            level,
            experience,
            unique_identifier,
            gender,
            coloring,
            held_item: None,
            health,
            stat_boost: Default::default(),
            flat_stats: *form.base_stats(),
            boosted_stats: *form.base_stats(),
            nickname: None,
            ability_index: ability,
            is_ability_overridden: false,
            overridden_ability_name: "".to_string(),
            battle_data: None,
            moves: [None, None, None, None],
            allowed_experience: false,
            types: form.types().to_vec(),
            ability_script: None,
            status_script: None,
            volatile: ScriptSet {},
        }
    }
}

#[cfg(test)]
pub mod test {
    use crate::dynamic_data::libraries::dynamic_library;
    use crate::dynamic_data::models::pokemon::Pokemon;
    use crate::static_data::libraries::data_library::DataLibrary;
    use crate::static_data::species_data::ability_index::AbilityIndex;
    use crate::static_data::species_data::gender::Gender;

    #[test]
    fn construct_pokemon() {
        let lib = dynamic_library::test::build();
        let species = lib.static_data().species().get("foo").unwrap();
        let form = species.get_form("default").unwrap();

        let pokemon = Pokemon::new(
            &lib,
            species,
            form,
            AbilityIndex {
                hidden: false,
                index: 0,
            },
            10,
            0,
            Gender::Male,
            0,
        );
        assert_eq!(pokemon.species.name(), "foo");
        assert_eq!(pokemon.form.name(), "default");
    }
}