//! Content: card definitions. Only this directory may name specific cards.
//!
//! Each effect is a small Rust function that returns engine actions. Module 5
//! replaces these functions with card data the engine interprets.

use crate::engine::{Action, CardDef, CardLibrary, TriggerOn};

/// Every card this game knows.
pub fn library() -> CardLibrary {
    CardLibrary::new(vec![
        // Fictional test minion with no text.
        CardDef::minion("Test Filler", 1, 1),
        // "Whenever a friendly minion takes damage, gain 1 Armor."
        CardDef::minion("Armorsmith", 1, 4).on(TriggerOn::FriendlyMinionDamaged, |c| {
            vec![Action::GainArmor {
                player: c.owner,
                amount: 1,
            }]
        }),
        // "Whenever this minion takes damage, draw a card."
        CardDef::minion("Acolyte of Pain", 1, 4).on(TriggerOn::SelfDamaged, |c| {
            vec![Action::Draw { player: c.owner }]
        }),
        // Fictional: "Whenever a minion takes damage, deal 1 damage to the enemy hero."
        CardDef::minion("Test Echo", 1, 5).on(TriggerOn::AnyMinionDamaged, |c| {
            vec![Action::Damage {
                targets: vec![c.enemy_hero()],
                amount: 1,
            }]
        }),
        // Fictional: "Whenever a hero takes damage, gain +1 Attack."
        CardDef::minion("Test Reactor", 1, 5).on(TriggerOn::HeroDamaged, |c| {
            vec![Action::GainAttack {
                id: c.minion(),
                amount: 1,
            }]
        }),
        // Expansion Drop: "Whenever a minion takes damage, gain +1 Attack."
        CardDef::minion("Frothing Berserker", 2, 4).on(TriggerOn::AnyMinionDamaged, |c| {
            vec![Action::GainAttack {
                id: c.minion(),
                amount: 1,
            }]
        }),
        // "Deal 1 damage to ALL minions."
        CardDef::spell("Whirlwind", |c| {
            vec![Action::Damage {
                targets: c.world.minions_in_play(),
                amount: 1,
            }]
        }),
    ])
}