using Theriapolis.Core.Data;
using Theriapolis.Core.Entities;
using Theriapolis.Core.Rules.Reputation;

namespace Theriapolis.Core.Rules.Dialogue;

/// <summary>
/// Phase 6 M3 — read/write window into player + npc state used by
/// <see cref="DialogueRunner"/> to evaluate conditions and apply effects.
/// Keeps the runner free of direct PlayScreen / ActorManager references
/// so the runner can be unit-tested with a synthetic context.
/// </summary>
public sealed class DialogueContext
{
    public NpcActor                            Npc        { get; }
    public Rules.Character.Character           Pc         { get; }
    public PlayerReputation                    Reputation { get; }
    public Dictionary<string, int>             Flags      { get; }
    public ContentResolver                     Content    { get; }

    /// <summary>Player position for tagging RepEvent origins. Optional; defaults to (0, 0) in tests.</summary>
    public int PlayerWorldTileX { get; set; }
    public int PlayerWorldTileY { get; set; }
    public long WorldClockSeconds { get; set; }

    /// <summary>Set true by <see cref="DialogueRunner"/> when an option fires the open_shop effect.</summary>
    public bool ShopRequested { get; set; }

    /// <summary>
    /// Phase 6 M3 — quest hook stub. set_flag-only for M3; the real quest
    /// engine wires in M4 and consumes <see cref="StartQuestRequests"/>.
    /// </summary>
    public List<string> StartQuestRequests { get; } = new();

    public DialogueContext(NpcActor npc, Rules.Character.Character pc,
                           PlayerReputation rep, Dictionary<string, int> flags,
                           ContentResolver content)
    {
        Npc        = npc;
        Pc         = pc;
        Reputation = rep;
        Flags      = flags;
        Content    = content;
    }

    /// <summary>Effective disposition for the current NPC vs the player. Cached per dialogue turn — recomputed on demand.</summary>
    public int EffectiveDispositionScore()
        => EffectiveDisposition.For(Npc, Pc, Reputation, Content);
}