import type { GameState, ActiveResearch } from '@ai-tycoon/shared';
import { TECH_TREE } from '@ai-tycoon/game-engine';

export function startResearch(state: GameState, research: ActiveResearch): boolean {
  const node = TECH_TREE.find(n => n.id === research.researchId);
  if (!node) return false;

  const rpCost = node.cost.researchPoints ?? 0;
  if (rpCost > state.research.researchPoints) return false;

  if (state.research.activeResearch) {
    if (state.research.researchQueue.includes(research.researchId)) return false;
    state.research.researchQueue.push(research.researchId);
    state.research.researchPoints -= rpCost;
    return true;
  }

  state.research.activeResearch = research;
  state.research.researchPoints -= rpCost;
  return true;
}