using System.Text.Json.Serialization;

namespace NeonSprawl.Server.Game.Npc;

/// <summary>JSON body for <c>GET /game/world/npc-runtime-snapshot</c> (NEO-94).</summary>
public sealed class NpcRuntimeSnapshotResponse
{
    public const int CurrentSchemaVersion = 1;

    [JsonPropertyName("schemaVersion")]
    public int SchemaVersion { get; init; } = CurrentSchemaVersion;

    [JsonPropertyName("serverTimeUtc")]
    public DateTimeOffset ServerTimeUtc { get; init; }

    /// <summary>Prototype NPC runtime rows ordered by ascending <c>npcInstanceId</c>.</summary>
    [JsonPropertyName("npcInstances")]
    public required IReadOnlyList<NpcInstanceRuntimeJson> NpcInstances { get; init; }
}

/// <summary>One row in the NPC runtime snapshot projection.</summary>
public sealed class NpcInstanceRuntimeJson
{
    [JsonPropertyName("npcInstanceId")]
    public required string NpcInstanceId { get; init; }

    [JsonPropertyName("behaviorDefId")]
    public required string BehaviorDefId { get; init; }

    [JsonPropertyName("state")]
    public required string State { get; init; }

    [JsonPropertyName("aggroHolderPlayerId")]
    public string? AggroHolderPlayerId { get; init; }

    [JsonPropertyName("activeTelegraph")]
    public ActiveTelegraphJson? ActiveTelegraph { get; init; }
}

/// <summary>Active telegraph nested on an NPC row during <c>telegraph_windup</c>.</summary>
public sealed class ActiveTelegraphJson
{
    [JsonPropertyName("telegraphId")]
    public required string TelegraphId { get; init; }

    [JsonPropertyName("npcInstanceId")]
    public required string NpcInstanceId { get; init; }

    [JsonPropertyName("windupRemainingSeconds")]
    public required double WindupRemainingSeconds { get; init; }

    [JsonPropertyName("archetypeKind")]
    public required string ArchetypeKind { get; init; }
}