using MeetingAssistant.MeetingNotes;

namespace MeetingAssistant.Workflow;

public enum MeetingWorkflowEventType
{
    Created,
    StateTransition,
    SpeakerIdentified,
    TranscriptLine,
    AttendeeAdded
}

public sealed record MeetingWorkflowEvent(
    MeetingWorkflowEventType Type,
    MeetingSessionArtifacts Artifacts,
    AssistantContextState? FromState = null,
    AssistantContextState? ToState = null,
    string? SpeakerName = null,
    string? TranscriptLineText = null,
    string? AttendeeName = null)
{
    public static MeetingWorkflowEvent Created(MeetingSessionArtifacts artifacts)
    {
        return new MeetingWorkflowEvent(MeetingWorkflowEventType.Created, artifacts);
    }

    public static MeetingWorkflowEvent StateTransition(
        MeetingSessionArtifacts artifacts,
        AssistantContextState from,
        AssistantContextState to)
    {
        return new MeetingWorkflowEvent(MeetingWorkflowEventType.StateTransition, artifacts, from, to);
    }

    public static MeetingWorkflowEvent SpeakerIdentified(
        MeetingSessionArtifacts artifacts,
        string speakerName)
    {
        return new MeetingWorkflowEvent(MeetingWorkflowEventType.SpeakerIdentified, artifacts, SpeakerName: speakerName);
    }

    public static MeetingWorkflowEvent TranscriptLine(
        MeetingSessionArtifacts artifacts,
        string line,
        string speakerName)
    {
        return new MeetingWorkflowEvent(
            MeetingWorkflowEventType.TranscriptLine,
            artifacts,
            SpeakerName: speakerName,
            TranscriptLineText: line);
    }

    public static MeetingWorkflowEvent AttendeeAdded(
        MeetingSessionArtifacts artifacts,
        string attendeeName)
    {
        return new MeetingWorkflowEvent(
            MeetingWorkflowEventType.AttendeeAdded,
            artifacts,
            AttendeeName: attendeeName);
    }
}