using System;

namespace Jovian.EncounterSystem {
    /// <summary>
    /// Marker interface for designer-authored dialog option side effects. Events carry data only;
    /// behaviour is registered on <see cref="EncounterResolver"/> and dispatched by concrete type.
    /// Add a new event by creating a new <see cref="IEncounterEvent"/> implementation and registering
    /// a handler for it with the resolver.
    /// </summary>
    public interface IEncounterEvent {
    }

    /// <summary>Transitions the flow to another encounter identified by <see cref="nextEncounterId"/>.</summary>
    [Serializable]
    public class ChainToEncounterEvent : IEncounterEvent {
        public string nextEncounterId;
    }

    /// <summary>Starts a combat encounter by id. Intended to be handled by the combat play mode.</summary>
    [Serializable]
    public class StartCombatEvent : IEncounterEvent {
        public string combatEncounterId;
    }

    /// <summary>Writes a line to whatever log sink the resolver's handler is configured with. Useful for debugging.</summary>
    [Serializable]
    public class LogEvent : IEncounterEvent {
        public string message;
    }

    /// <summary>
    /// Grants the referenced <see cref="Reward"/> asset to the party. The actual application is
    /// handled by a game-side delegate registered on <see cref="EncounterResolver"/>. Add multiple
    /// <see cref="GiveRewardEvent"/>s to a dialog option's event list to grant multiple rewards.
    /// </summary>
    [Serializable]
    public class GiveRewardEvent : IEncounterEvent {
        public Reward reward;
    }
}