#![feature(custom_test_frameworks)]
#![feature(once_cell)]
#![test_runner(datatest::runner)]

use std::fs::File;
use std::io::Read;
use std::path::Path;
use std::sync::Arc;

use pkmn_lib::dynamic_data::{
    Battle, BattleParty, DamageSource, DynamicLibrary, ExecutingMove, MoveChoice, PokemonBuilder, PokemonParty, Script,
    ScriptCategory, ScriptContainer, ScriptOwnerData, TurnChoice, VolatileScriptsOwner,
};
use pkmn_lib::script_implementations::wasm::script::WebAssemblyScript;

use crate::common::{library_loader, TestCase};

pub mod common;

fn get_library() -> Arc<DynamicLibrary> {
    Arc::new(library_loader::load_library())
}

#[test]
fn validate_library_load() {
    let start_time = chrono::Utc::now();
    library_loader::load_library();
    let end_time = chrono::Utc::now();
    println!("Built library in {} ms", (end_time - start_time).num_milliseconds());
}

#[datatest::files("tests/test_cases", {
input in r"^(.*)\.yaml"
})]
#[cfg_attr(miri, ignore)]
fn integration_tests(input: &Path) {
    let mut str: String = "".to_string();
    let mut file = File::open(input).unwrap();
    file.read_to_string(&mut str).unwrap();
    let test_case = serde_yaml::from_str::<TestCase>(&str).unwrap();
    println!("\tRunning integration test {}", test_case.name);
    test_case.run_test(get_library());
}

/// Assurance has the interesting properties that it creates a special data script internally, and
/// deletes that data script through the get_owner functionality.
#[test]
#[cfg_attr(miri, ignore)]
fn validate_assurance() {
    let lib = get_library();
    let p1 = Arc::new(
        PokemonBuilder::new(lib.clone(), "charizard".into(), 100)
            .learn_move("assurance".into())
            .build(),
    );
    let p2 = Arc::new(PokemonBuilder::new(lib.clone(), "venusaur".into(), 100).build());

    let party1 = BattleParty::new(
        Arc::new(PokemonParty::new_from_vec(vec![Some(p1.clone())])),
        vec![(0, 0)],
    );
    let party2 = BattleParty::new(
        Arc::new(PokemonParty::new_from_vec(vec![Some(p2.clone())])),
        vec![(1, 0)],
    );

    let battle = Battle::new(lib.clone(), vec![party1, party2], false, 2, 1, None);

    battle.sides()[0].set_pokemon(0, Some(p1.clone()));
    battle.sides()[1].set_pokemon(0, Some(p2.clone()));

    let script = lib
        .load_script(ScriptOwnerData::None, ScriptCategory::Move, &"assurance".into())
        .unwrap()
        .unwrap();

    let mv = p1.learned_moves().read()[0].as_ref().unwrap().clone();
    let choice = TurnChoice::Move(MoveChoice::new(p1.clone(), mv.clone(), 1, 0));
    script.on_before_turn(&choice);
    assert!(battle.sides()[1].has_volatile_script(&"assurance_data".into()));

    let executing_move = ExecutingMove::new(
        vec![],
        1,
        p1.clone(),
        mv.clone(),
        mv.move_data().clone(),
        ScriptContainer::default(),
    );
    let mut v = 20_u8;
    script.change_base_power(&executing_move, &p2, 0, &mut v);
    assert_eq!(v, 20_u8);

    let s = battle.sides()[1].get_volatile_script(&"assurance_data".into());
    let data_script = s.as_ref().unwrap().get_as::<WebAssemblyScript>();

    data_script.on_damage(&p2, DamageSource::Misc, 100, 50);

    let mut v = 20_u8;
    script.change_base_power(&executing_move, &p2, 0, &mut v);
    assert_eq!(v, 40_u8);

    data_script.on_end_turn();
    assert!(!battle.sides()[1].has_volatile_script(&"assurance_data".into()));
}