use crate::{
    comp::{Attacking, CharacterState, ItemKind::Tool, StateUpdate},
    states::utils::*,
    sys::character_behavior::JoinData,
};
use std::{collections::VecDeque, time::Duration};

// In millis
const STAGE_DURATION: u64 = 600;

/// ### A sequence of 3 incrementally increasing attacks.
///
/// While holding down the `primary` button, perform a series of 3 attacks,
/// each one pushes the player forward as the character steps into the swings.
/// The player can let go of the left mouse button at any time
/// and stop their attacks by interrupting the attack animation.
pub fn behavior(data: &JoinData) -> StateUpdate {
    let mut update = StateUpdate {
        pos: *data.pos,
        vel: *data.vel,
        ori: *data.ori,
        energy: *data.energy,
        character: *data.character,
        local_events: VecDeque::new(),
        server_events: VecDeque::new(),
    };

    if let CharacterState::TripleStrike {
        tool,
        stage,
        stage_time_active,
        stage_exhausted,
    } = data.character
    {
        let mut new_stage_exhausted = *stage_exhausted;
        let new_stage_time_active = stage_time_active
            .checked_add(Duration::from_secs_f32(data.dt.0))
            .unwrap_or(Duration::default());

        // If player stops holding input,
        if !data.inputs.primary.is_pressed() {
            attempt_wield(data, &mut update);
            return update;
        }

        while *stage < 3 {
            if new_stage_time_active < Duration::from_millis(STAGE_DURATION / 3) {
                // Move player forward while in first third of each stage
                handle_move(data, &mut update);
            } else if new_stage_time_active > Duration::from_millis(STAGE_DURATION / 2)
                && !new_stage_exhausted
            {
                // Try to deal damage in second half of stage
                // TODO: deal damage
            }
        }
    }

    update
}