/**
 * Workflow Events — Pipeline (self-contained)
 */

export class WorkflowPipeline {
	private state = {
		id: "main",
		status: "idle",
		tasks: [] as string[],
		blockers: [] as string[],
	};
	private history: Array<{
		from: string;
		to: string;
		trigger: string;
		timestamp: string;
	}> = [];

	transition(kind: string, data: Record<string, unknown> = {}): void {
		const prev = this.state.status;
		if (kind === "TaskStarted") {
			this.state.status = "running";
			if (data.taskId) this.state.tasks.push(data.taskId as string);
		} else if (kind === "WorkflowFinished") {
			this.state.status = "finished";
		}
		this.history.push({
			from: prev,
			to: this.state.status,
			trigger: kind,
			timestamp: new Date().toISOString(),
		});
	}

	getState() {
		return { ...this.state };
	}
	getHistory() {
		return [...this.history];
	}
}