using UnityEngine;

namespace BaseGames.Player.States
{
    /// <summary>跑步状态。播放 Run 动画并驱动水平移动。</summary>
    public class RunState : PlayerStateBase
    {
        public RunState(PlayerController owner) : base(owner) { }

        public override void OnStateEnter()
        {
            if (AnimCfg?.Run != null)
                Anim.Play(AnimCfg.Run);
            // 落地时重置空中能力计数器（绝大多数情况被 IdleState 覆盖，但水平落地直接进入 RunState 时也需要）
            Owner.GetState<AerialDashState>()?.ResetAerialDashes();
            Owner.ResetAirJumps();
        }

        public override void OnStateUpdate()
        {
            if (!Move.IsGrounded)
            {
                _owner.TransitionTo(_owner.GetState<FallState>());
                return;
            }
            if (Buffer.ConsumeJump())
            {
                _owner.TransitionTo(_owner.GetState<JumpState>());
                return;
            }
            // 地面冲刺：需解锁 Dash 能力，且冲刺不在冷却
            if (Buffer.ConsumeDash()
                && Stats != null && Stats.HasAbility(AbilityType.Dash)
                && Owner.GetState<DashState>() is { CanDash: true } dashState)
            {
                _owner.TransitionTo(dashState);
                return;
            }
            if (Mathf.Abs(Input.MoveInput.x) < 0.1f)
            {
                _owner.TransitionTo(_owner.GetState<IdleState>());
                return;
            }
        }

        public override void OnStateFixedUpdate()
        {
            Move.Move(Input.MoveInput.x * Cfg.RunSpeed);
        }
    }
}