using Content.Shared.Alert;
using Robust.Shared.GameStates;
using Robust.Shared.Prototypes;
using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;

namespace Content.Shared.Damage.Components;

/// <summary>
/// Add to an entity to paralyze it whenever it reaches critical amounts of Stamina DamageType.
/// </summary>
[RegisterComponent, NetworkedComponent, AutoGenerateComponentState(true), AutoGenerateComponentPause]
public sealed partial class StaminaComponent : Component
{
    /// <summary>
    /// Have we reached peak stamina damage and been paralyzed?
    /// </summary>
    [ViewVariables(VVAccess.ReadWrite), DataField, AutoNetworkedField]
    public bool Critical;

    /// <summary>
    /// How much stamina reduces per second.
    /// </summary>
    [ViewVariables(VVAccess.ReadWrite), DataField, AutoNetworkedField]
    public float Decay = 3f;

    /// <summary>
    /// How much time after receiving damage until stamina starts decreasing.
    /// </summary>
    [ViewVariables(VVAccess.ReadWrite), DataField, AutoNetworkedField]
    public float Cooldown = 3f;

    /// <summary>
    /// How much stamina damage this entity has taken.
    /// </summary>
    [ViewVariables(VVAccess.ReadWrite), DataField, AutoNetworkedField]
    public float StaminaDamage;

    /// <summary>
    /// How much stamina damage is required to entire stam crit.
    /// </summary>
    [ViewVariables(VVAccess.ReadWrite), DataField, AutoNetworkedField]
    public float CritThreshold = 100f;

    /// <summary>
    /// A dictionary of active stamina drains, with the key being the source of the drain,
    /// DrainRate how much it changes per tick, and ModifiesSpeed if it should slow down the user.
    /// </summary>
    [DataField, AutoNetworkedField]
    public Dictionary<EntityUid, (float DrainRate, bool ModifiesSpeed)> ActiveDrains = new();

    /// <summary>
    /// How long will this mob be stunned for?
    /// </summary>
    [ViewVariables(VVAccess.ReadWrite), DataField]
    public TimeSpan StunTime = TimeSpan.FromSeconds(6);

    /// <summary>
    /// To avoid continuously updating our data we track the last time we updated so we can extrapolate our current stamina.
    /// </summary>
    [DataField(customTypeSerializer: typeof(TimeOffsetSerializer)), AutoNetworkedField]
    [AutoPausedField]
    public TimeSpan NextUpdate = TimeSpan.Zero;

    /// <summary>
    /// Minimum factor of the crit threshold that the mob must receive in stamina damage in order to start slowing down.
    /// </summary>
    [DataField, AutoNetworkedField]
    public float SlowdownThresholdFactor = 0.5f;

    /// <summary>
    /// Speed multiplier for entities that are slowed down due to low stamina. Multiplied by how close the mob is to stamcrit.
    /// </summary>
    [DataField, AutoNetworkedField]
    public float SlowdownMultiplier = 0.75f;

    [DataField]
    public ProtoId<AlertPrototype> StaminaAlert = "Stamina";
}