/* // aiEngine.js
import { GoogleGenAI } from '@google/genai';

/* import dotenv from 'dotenv';
dotenv.config();
*/

const genAI = new GoogleGenAI({ apiKey: process.env.GEMINI_API_KEY });

console.log(process.env.GEMINI_API_KEY);

// Prompt Loader
import fs from 'fs';
const prompts = JSON.parse(fs.readFileSync('./prompts.json', 'utf8'));

export const AIEngine = {
  /**
   * PM MODEL (Gemini 3.0 Pro Preview - High Thinking)
   */
  callPM: async (history, input) => {
    const modelId = 'gemini-3-pro-preview'; // Per prompt requirements
    const config = {
      thinkingConfig: { thinkingLevel: 'HIGH' },
      tools: [{ 
        systemInstruction: [{
          text: prompts.pm_system_prompt
        }],
               googleSearch: {} }],
    };

    const contents = [
     { role: 'user', parts: [{ text: prompts.pm_system_prompt }] }, // System instruction injection
      ...history,
      { role: 'user', parts: [{ text: input }] }
    ];

    try {
      const response = await genAI.models.generateContent({
        model: modelId,
        config,
        contents,
      });
      return response.text; // Simple text return for non-stream internal logic
    } catch (error) {
      console.error("PM AI Error:", error);
      throw error;
    }
  },

  /**
   * WORKER MODEL (Gemini 2.5 Flash - Fast execution)
   */
  callWorker: async (history, input, imagePart = null) => {
   /* const modelId = 'gemini-flash-latest'; // Per prompt requirements
    const config = {
      thinkingConfig: { thinkingBudget: -1 }, // Standard generation
    */
    const modelId = 'gemini-3-pro-preview'; // Per prompt requirements
    const config = {
      thinkingConfig: { thinkingLevel: 'HIGH' },
      tools: [{ 
        systemInstruction: [{
          text: prompts.worker_system_prompt
        }],
        googleSearch: {} }],
    };

    const currentParts = [{ text: input }];
    if (imagePart) {
      currentParts.push(imagePart);
    }

    const contents = [
     { role: 'user', parts: [{ text: prompts.worker_system_prompt }] },
      ...history,
      { role: 'user', parts: currentParts }
    ];

    try {
      const response = await genAI.models.generateContent({
        model: modelId,
        config,
        contents,
      });
      return response.text;
    } catch (error) {
      console.error("Worker AI Error:", error);
      throw error;
    }
  }
};