<?php

namespace App\Services;

use OpenAI;
use Illuminate\Support\Facades\Storage;

class OpenAIService
{
    protected $client;

    public function __construct()
    {
        $this->client = OpenAI::client(env('OPENAI_API_KEY'));
    }

    public function generateGeneralText($prompt, $mainContent)
    {
        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                [
                    'role' => 'system', 
                    'content' => "You are an expert assistant. Your task is to generate a concise response based on the provided prompt and main content. 

                    Guidelines:
                    - Summarize the key points in exactly 5 bullet points.
                    - Ensure the response is clear and relevant to the prompt.
                    - Use simple and professional language."
                ],
                ['role' => 'user', 'content' => "Prompt: $prompt \nMain Content: $mainContent"],
            ],
        ]);

        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }

    public function generateClassifyMainContent($prompt, $mainContent)
    {
        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                [
                    'role' => 'system', 
                    'content' => "You are an expert assistant in classifying questions based on whether their answers must be retrieved from a database or can be explained generally.
                    Your task is to return one of the following two labels:
                    - \"DATABASE\" → If the question requires specific data that can only be obtained from a database.
                    - \"GENERAL\" → If the question can be answered without accessing a database.
                    
                    Consider the following context: \"$mainContent\"
                    
                    Respond with only one of the labels: \"DATABASE\" or \"GENERAL\"."
                ],
                ['role' => 'user', 'content' => $prompt],
            ],
        ]);

        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }

    public function generateQueryBasedMainContent($prompt, $mainContent)
    {
        // Load file JSON
        $jsonPath = public_path('templates/contentTemplatePrompt.json'); // Sesuaikan path
        $jsonData = json_decode(file_get_contents($jsonPath), true);

        // Periksa apakah kategori ada dalam JSON
        if (!isset($jsonData[$mainContent])) {
            return "Template prompt tidak ditemukan.";
        }

        // Ambil template berdasarkan kategori
        $promptTemplate = $jsonData[$mainContent]['prompt'];

        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                ['role' => 'system', 'content' => $promptTemplate],
                ['role' => 'user', 'content' => $prompt],
            ],
        ]);

        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }


    public function validateSyntaxQuery($queryResponse)
    {
        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                [
                    'role' => 'system', 
                    'content' => "You are a MariaDB SQL expert. Your task is to validate the syntax of an SQL query to ensure it follows proper MariaDB syntax rules. 

                    Guidelines:
                    - Check for any syntax errors, missing keywords, or incorrect clause usage.
                    - Ensure the query is well-structured and adheres to best practices.
                    - Verify that all SQL keywords are used correctly and in the right order.
                    - If the query is valid, respond with: \"VALID\".
                    - If the query has issues, respond with: \"INVALID\".
                    
                    Always respond with either \"VALID\" or \"INVALID\"."
                ],
                ['role' => 'user', 'content' => $queryResponse],
            ],
        ]);

        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }

    public function generateNLPFromQuery($inputUser, $resultQuery) {
        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                [
                    'role' => 'system', 
                    'content' => "You are an expert assistant. Your task is to analyze the database query results and transform them into a human-readable answer based on the user's question.
    
                    Guidelines:
                    - Understand the user's question and extract the key intent.
                    - Summarize or format the query results to directly answer the user's question.
                    - Ensure the response is clear, concise, and relevant.
                    - If the query result is empty or does not match the question, provide a polite response indicating that no data is available.
    
                    Always provide a well-structured response that makes sense based on the input question."
                ],
                ['role' => 'user', 'content' => "User's question: $inputUser \nDatabase result: $resultQuery"],
            ],
        ]);
    
        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }

    public function generateFinalText($nlpResult) {
        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                [
                    'role' => 'system',
                    'content' => "You are an expert text formatter. Your task is to take the given NLP result and format it into a structured, human-readable text suitable for rendering inside an HTML <div>.
    
                    Guidelines:
                    - Preserve the meaning and clarity of the content.
                    - Use proper line breaks for readability.
                    - If the text contains lists, convert them into bullet points.
                    - Emphasize important keywords using <strong> tags if necessary.
                    - Ensure the response remains clean and concise without extra explanations."
                ],
                ['role' => 'user', 'content' => "Here is the NLP result that needs formatting:\n\n$nlpResult"],
            ],
        ]);
    
        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }
    
    public function mainGenerateText($prompt) {
        $response = $this->client->chat()->create([
            'model' => 'gpt-4o-mini',
            'messages' => [
                [
                    'role' => 'system',
                    'content' => "You are an expert assistant with deep knowledge in multiple fields, including programming, data science, and business strategy. Provide clear, concise, and accurate responses."
                ],
                [
                    'role' => 'user',
                    'content' => $prompt
                ],
            ],
        ]);
    
        return trim($response['choices'][0]['message']['content'] ?? 'No response');
    }
    
    // 1. Buat fungsi untuk akses data advertisements
    // 2. Buat fungsi untuk akses data business_or_industries
    // 3. Buat fungsi untuk akses data customers
    // 4. Buat fungsi untuk akses data pbg_task
    // 5. Buat fungsi untuk akses data pbg_task_retribution
    // 6. Buat fungsi untuk akses data spatial_plannings
    // 7. Buat fungsi untuk akses data tourisms
    // 8. Buat fungsi untuk akses data umkms

}