<?php

namespace Spatie\Ignition\Solutions\OpenAi;

use OpenAI;
use Psr\SimpleCache\CacheInterface;
use Spatie\Backtrace\Backtrace;
use Spatie\Backtrace\Frame;
use Spatie\Ignition\Contracts\Solution;
use Spatie\Ignition\ErrorPage\Renderer;
use Spatie\Ignition\Ignition;
use Throwable;

class OpenAiSolution implements Solution
{
    public bool $aiGenerated = true;

    protected string $prompt;

    protected OpenAiSolutionResponse $openAiSolutionResponse;

    public function __construct(
        protected Throwable           $throwable,
        protected string              $openAiKey,
        protected CacheInterface|null $cache = null,
        protected int|null            $cacheTtlInSeconds = 60,
        protected string|null         $applicationType = null,
        protected string|null         $applicationPath = null,
    ) {
        $this->prompt = $this->generatePrompt();

        $this->openAiSolutionResponse = $this->getAiSolution();
    }

    public function getSolutionTitle(): string
    {
        return 'AI Generated Solution';
    }

    public function getSolutionDescription(): string
    {
        return $this->openAiSolutionResponse->description();
    }

    public function getDocumentationLinks(): array
    {
        return $this->openAiSolutionResponse->links();
    }

    public function getAiSolution(): ?OpenAiSolutionResponse
    {
        $solution = $this->cache->get($this->getCacheKey());

        if ($solution) {
            return new OpenAiSolutionResponse($solution);
        }

        $solutionText = OpenAI::client($this->openAiKey)
            ->chat()
            ->create([
                'model' => $this->getModel(),
                'messages' => [['role' => 'user', 'content' => $this->prompt]],
                'max_tokens' => 1000,
                'temperature' => 0,
            ])->choices[0]->message->content;

        $this->cache->set($this->getCacheKey(), $solutionText, $this->cacheTtlInSeconds);

        return new OpenAiSolutionResponse($solutionText);
    }

    protected function getCacheKey(): string
    {
        $hash = sha1($this->prompt);

        return "ignition-solution-{$hash}";
    }

    protected function generatePrompt(): string
    {
        $viewPath = Ignition::viewPath('aiPrompt');

        $viewModel = new OpenAiPromptViewModel(
            file: $this->throwable->getFile(),
            exceptionMessage: $this->throwable->getMessage(),
            exceptionClass: get_class($this->throwable),
            snippet: $this->getApplicationFrame($this->throwable)->getSnippetAsString(15),
            line: $this->throwable->getLine(),
            applicationType: $this->applicationType,
        );

        return (new Renderer())->renderAsString(
            ['viewModel' => $viewModel],
            $viewPath,
        );
    }

    protected function getModel(): string
    {
        return 'gpt-3.5-turbo';
    }

    protected function getApplicationFrame(Throwable $throwable): ?Frame
    {
        $backtrace = Backtrace::createForThrowable($throwable);

        if ($this->applicationPath) {
            $backtrace->applicationPath($this->applicationPath);
        }

        $frames = $backtrace->frames();

        return $frames[$backtrace->firstApplicationFrameIndex()] ?? null;
    }
}

• [F] DummyCache.php
  Delete
• [F] OpenAiPromptViewModel.php
  Delete
• [F] OpenAiSolution.php
  Delete
• [F] OpenAiSolutionProvider.php
  Delete
• [F] OpenAiSolutionResponse.php
  Delete

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