using TeamUp.SharedKernel.Domain;

namespace TeamUp.Modules.Assembler.Domain;

internal enum AgentRunStatus
{
    Queued,
    Running,
    Completed,
    Failed,
}

/// <summary>
/// One execution of an AI seat against a task: the assembled prompt, the raw model output, the
/// parsed action + risk tag, and the reasoning/assembly trace. Nothing executes off this in M4 —
/// the action gate (M5) decides whether the parsed action runs or waits in review.
/// </summary>
internal sealed class AgentRun : Entity
{
    public Guid SeatId { get; private set; }
    public Guid WorkItemId { get; private set; }
    public Guid? AgentId { get; private set; }
    public AgentRunStatus Status { get; private set; }
    public string? Prompt { get; private set; }
    public string? Output { get; private set; }
    public string? ActionType { get; private set; }
    public string? ActionRisk { get; private set; }
    public string? ResultJson { get; private set; }
    public string? Trace { get; private set; }
    public string? Error { get; private set; }
    public long? LatencyMs { get; private set; }
    public DateTimeOffset CreatedAtUtc { get; private set; }
    public DateTimeOffset? CompletedAtUtc { get; private set; }

    private AgentRun()
    {
    }

    public AgentRun(Guid seatId, Guid workItemId, DateTimeOffset createdAtUtc)
    {
        SeatId = seatId;
        WorkItemId = workItemId;
        Status = AgentRunStatus.Queued;
        CreatedAtUtc = createdAtUtc;
    }

    public void Start(Guid? agentId, string prompt, string? trace)
    {
        Status = AgentRunStatus.Running;
        AgentId = agentId;
        Prompt = prompt;
        Trace = trace;
    }

    public void Complete(string output, string actionType, string actionRisk, string? resultJson, long latencyMs, DateTimeOffset nowUtc)
    {
        Status = AgentRunStatus.Completed;
        Output = output;
        ActionType = actionType;
        ActionRisk = actionRisk;
        ResultJson = resultJson;
        LatencyMs = latencyMs;
        CompletedAtUtc = nowUtc;
    }

    public void Fail(string error, DateTimeOffset nowUtc)
    {
        Status = AgentRunStatus.Failed;
        Error = error;
        CompletedAtUtc = nowUtc;
    }
}