<?php

namespace App\Http\Controllers\Api;

use Illuminate\Http\Request;
use App\Services\OpenAIService;
use App\Http\Controllers\Controller;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\DB;

class ChatbotController extends Controller
{
    protected $openAIService;

    public function __construct(OpenAIService $openAIService)
    {
        $this->openAIService = $openAIService;
    }

    public function generateText(Request $request)
    {
        info($request);
        $request->validate([
            'tab_active' => 'required|string',
            'prompt' => 'required|string',
        ]);

        $tab_active = $request->input('tab_active');
        $main_content = match ($tab_active) {
            "count-retribusi" => "RETRIBUTION",
            "document-validation" => "DOCUMENT VALIDATION",
            "data-information" => "DATA SUMMARY",
            default => "UNKNOWN",
        };

        if ($main_content === "UNKNOWN") {
            return response()->json(['response' => 'Invalid tab_active value.'], 400);
        }

        info($main_content);

        // Klasifikasi apakah pertanyaan butuh database atau bisa dijawab langsung
        $classifyResponse = $this->openAIService->generateClassifyMainContent($request->input('prompt'), $main_content);

        if ($classifyResponse === "DATABASE") {
            $queryResponse = $this->openAIService->generateQueryBasedMainContent($request->input('prompt'), $main_content);
            if (is_array($queryResponse)) {
                info('Query Response is an array: ', $queryResponse);
            } else {
                info('Query Response is a string: ' . $queryResponse);
            }
            
            // Validasi query dua kali sebelum eksekusi
            if (
                $this->openAIService->validateSyntaxQuery($queryResponse) === "VALID" &&
                $this->openAIService->validateSyntaxQuery($queryResponse) === "VALID"
            ) {
                info($queryResponse);
                $queryResponse = str_replace(['```sql', '```'], '', $queryResponse);
                $resultQuery = DB::select($queryResponse);
                $formattedResultQuery = json_encode($resultQuery, JSON_PRETTY_PRINT);
                $nlpResult = $this->openAIService->generateNLPFromQuery($request->input('prompt'), $formattedResultQuery);
                $finalGeneratedText =$this->openAIService->generateFinalText($nlpResult);
                return response()->json(['response' => $finalGeneratedText]);
            }

            return response()->json(['response' => ''], 400);
        }

        if ($classifyResponse === "GENERAL") {
            $nlpResult = $this->openAIService->generateGeneralText($request->input('prompt'), $main_content);
            $finalGeneratedText =$this->openAIService->generateFinalText($nlpResult);
            return response()->json(['response' => $finalGeneratedText]);
        }

        return response()->json(['response' => ''], 500);
    }


    private function classifyContent(string $prompt) {
        $classifyResponse = $this->openAIService->generateClassifyContent($prompt);
        return $classifyResponse;
    }
}