MistralProvider::generateLearnPath() - Code Metrics - Inspection of "AI: Add basic support for multi-modal AI services..." - chamilo/chamilo-lms - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#7304)

by Yannick

created 2026-01-02 17:04 UTC

MistralProvider::generateLearnPath() B

↳ Parent: MistralProvider

Complexity

Conditions	9
Paths	9

Size

Total Lines	87
Code Lines	59

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	9
eloc	59
c	0
b	0
f	0
nc	9
nop	6
dl	0
loc	87
rs	7.3389

How to fix Long Method

<?php

declare(strict_types=1);

namespace Chamilo\CoreBundle\AiProvider;

use Chamilo\CoreBundle\Entity\AiRequests;
use Chamilo\CoreBundle\Repository\AiRequestsRepository;
use Chamilo\CoreBundle\Settings\SettingsManager;
use Exception;
use RuntimeException;
use Symfony\Bundle\SecurityBundle\Security;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Contracts\HttpClient\HttpClientInterface;

class MistralProvider implements AiProviderInterface
{
    private string $apiUrl;
    private string $apiKey;
    private string $model;
    private float $temperature;
    private HttpClientInterface $httpClient;
    private AiRequestsRepository $aiRequestsRepository;
    private Security $security;

    public function __construct(
        HttpClientInterface $httpClient,
        SettingsManager $settingsManager,
        AiRequestsRepository $aiRequestsRepository,
        Security $security
    ) {
        $this->httpClient = $httpClient;
        $this->aiRequestsRepository = $aiRequestsRepository;
        $this->security = $security;

        // Get AI providers from settings
        $configJson = $settingsManager->getSetting('ai_helpers.ai_providers', true);
        $config = json_decode($configJson, true) ?? [];

        if (!isset($config['mistral'])) {
            throw new RuntimeException('Mistral configuration is missing.');
        }
        if (!isset($config['mistral']['text'])) {
            throw new RuntimeException('DeepSeek configuration for text processing is missing.');
        }

        $this->apiKey = $config['mistral']['api_key'] ?? '';
        $this->apiUrl = $config['mistral']['text']['url'] ?? 'https://api.mistral.ai/v1/chat/completions';
        $this->model = $config['mistral']['text']['model'] ?? 'mistral-large-latest';
        $this->temperature = $config['mistral']['text']['temperature'] ?? 0.7;

        if (empty($this->apiKey)) {
            throw new RuntimeException('Mistral API key is missing.');
        }
    }

    public function generateQuestions(string $topic, int $numQuestions, string $questionType, string $language): ?string
    {
        $prompt = \sprintf(
            'Generate %d "%s" questions in Aiken format in the %s language about "%s".
            Ensure each question follows this format:

            1. The question text.
            A. Option A
            B. Option B
            C. Option C
            D. Option D
            ANSWER: (Correct answer letter)

            The output should be plain text without additional symbols or markdown.',
            $numQuestions,
            $questionType,
            $language,
            $topic
        );

        return $this->requestMistralAI($prompt, 'quiz');
    }

    public function generateLearnPath(string $topic, int $chaptersCount, string $language, int $wordsCount, bool $addTests, int $numQuestions): ?array
    {
        // Step 1: Generate the Table of Contents
        $tableOfContentsPrompt = \sprintf(
            'Generate a structured table of contents for a course in "%s" with %d chapters on "%s".
            Return a numbered list, each chapter on a new line. No conclusion.',
            $language,
            $chaptersCount,
            $topic
        );

        $lpStructure = $this->requestMistralAI($tableOfContentsPrompt, 'learnpath');
        if (!$lpStructure) {
            return ['success' => false, 'message' => 'Failed to generate course structure.'];
        }

        // Step 2: Generate content for each chapter
        $lpItems = [];
        $chapters = explode("\n", trim($lpStructure));
        foreach ($chapters as $index => $chapterTitle) {
            $chapterTitle = trim($chapterTitle);
            if (empty($chapterTitle)) {
                continue;
            }

            $chapterPrompt = \sprintf(
                'Create a learning chapter in HTML for "%s" in "%s" with %d words.
                Title: "%s". Assume the reader already knows the context.',
                $topic,
                $language,
                $wordsCount,
                $chapterTitle
            );

            $chapterContent = $this->requestMistralAI($chapterPrompt, 'learnpath');
            if (!$chapterContent) {
                continue;
            }

            $lpItems[] = [
                'title' => $chapterTitle,
                'content' => "<html><head><title>{$chapterTitle}</title></head><body>{$chapterContent}</body></html>",
            ];
        }

        // Step 3: Generate quizzes if enabled
        $quizItems = [];
        if ($addTests) {
            foreach ($lpItems as &$chapter) {
                $quizPrompt = \sprintf(
                    'Generate %d multiple-choice questions in Aiken format in %s about "%s".
            Ensure each question follows this format:

            1. The question text.
            A. Option A
            B. Option B
            C. Option C
            D. Option D
            ANSWER: (Correct answer letter)

            Each question must have exactly 4 options and one answer line.
            Return only valid questions without extra text.',
                    $numQuestions,
                    $language,
                    $chapter['title']
                );

                $quizContent = $this->requestMistralAI($quizPrompt, 'learnpath');

                if ($quizContent) {
                    $validQuestions = $this->filterValidAikenQuestions($quizContent);

                    if (!empty($validQuestions)) {
                        $quizItems[] = [
                            'title' => 'Quiz: '.$chapter['title'],
                            'content' => implode("\n\n", $validQuestions),
                        ];
                    }
                }
            }
        }

        return [
            'success' => true,
            'topic' => $topic,
            'lp_items' => $lpItems,
            'quiz_items' => $quizItems,
        ];
    }

    private function filterValidAikenQuestions(string $quizContent): array
    {
        $questions = preg_split('/\n{2,}/', trim($quizContent));

        $validQuestions = [];
        foreach ($questions as $questionBlock) {
            $lines = explode("\n", trim($questionBlock));

            if (\count($lines) < 6) {
                continue;
            }

            $options = \array_slice($lines, 1, 4);
            $validOptions = array_filter($options, fn ($line) => preg_match('/^[A-D]\. .+/', $line));

            $answerLine = end($lines);
            if (4 === \count($validOptions) && preg_match('/^ANSWER: [A-D]$/', $answerLine)) {
                $validQuestions[] = implode("\n", $lines);
            }
        }

        return $validQuestions;
    }

    private function requestMistralAI(string $prompt, string $toolName): ?string
    {
        $userId = $this->getUserId();
        if (!$userId) {
0   == false // true
0   == null  // true
123 == false // false
123 == null  // false

// It is often better to use strict comparison
0 === false // false
0 === null  // false
            throw new RuntimeException('User not authenticated.');
        }

        $payload = [
            'model' => $this->model,
            'messages' => [
                ['role' => 'system', 'content' => 'You are a helpful AI assistant that generates structured educational content.'],
                ['role' => 'user', 'content' => $prompt],
            ],
            'temperature' => $this->temperature,
            'max_tokens' => 1000,
        ];

        try {
            $response = $this->httpClient->request('POST', $this->apiUrl, [
                'headers' => [
                    'Authorization' => 'Bearer '.$this->apiKey,
                    'Content-Type' => 'application/json',
                ],
                'json' => $payload,
            ]);

            $statusCode = $response->getStatusCode();
            $data = $response->toArray();

            if (200 === $statusCode && isset($data['choices'][0]['message']['content'])) {
                $generatedContent = $data['choices'][0]['message']['content'];

                $aiRequest = new AiRequests();
                $aiRequest->setUserId($userId)
                    ->setToolName($toolName)
                    ->setRequestText($prompt)
                    ->setPromptTokens($data['usage']['prompt_tokens'] ?? 0)
                    ->setCompletionTokens($data['usage']['completion_tokens'] ?? 0)
                    ->setTotalTokens($data['usage']['total_tokens'] ?? 0)
                    ->setAiProvider('mistral')
                ;

                $this->aiRequestsRepository->save($aiRequest);

                return $generatedContent;
            }

            return null;
        } catch (Exception $e) {
            error_log('[AI][Mistral] Exception: '.$e->getMessage());

            return null;
        }
    }

    public function gradeOpenAnswer(string $prompt, string $toolName): ?string
    {
        return $this->requestMistralAI($prompt, $toolName);
    }

    private function getUserId(): ?int
    {
        $user = $this->security->getUser();

        return $user instanceof UserInterface ? $user->getId() : null;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Chamilo\CoreBundle\AiProvider;
6
7			use Chamilo\CoreBundle\Entity\AiRequests;
8			use Chamilo\CoreBundle\Repository\AiRequestsRepository;
9			use Chamilo\CoreBundle\Settings\SettingsManager;
10			use Exception;
11			use RuntimeException;
12			use Symfony\Bundle\SecurityBundle\Security;
13			use Symfony\Component\Security\Core\User\UserInterface;
14			use Symfony\Contracts\HttpClient\HttpClientInterface;
15
16			class MistralProvider implements AiProviderInterface
17			{
18			private string $apiUrl;
19			private string $apiKey;
20			private string $model;
21			private float $temperature;
22			private HttpClientInterface $httpClient;
23			private AiRequestsRepository $aiRequestsRepository;
24			private Security $security;
25
26			public function __construct(
27			HttpClientInterface $httpClient,
28			SettingsManager $settingsManager,
29			AiRequestsRepository $aiRequestsRepository,
30			Security $security
31			) {
32			$this->httpClient = $httpClient;
33			$this->aiRequestsRepository = $aiRequestsRepository;
34			$this->security = $security;
35
36			// Get AI providers from settings
37			$configJson = $settingsManager->getSetting('ai_helpers.ai_providers', true);
38			$config = json_decode($configJson, true) ?? [];
39
40			if (!isset($config['mistral'])) {
41			throw new RuntimeException('Mistral configuration is missing.');
42			}
43			if (!isset($config['mistral']['text'])) {
44			throw new RuntimeException('DeepSeek configuration for text processing is missing.');
45			}
46
47			$this->apiKey = $config['mistral']['api_key'] ?? '';
48			$this->apiUrl = $config['mistral']['text']['url'] ?? 'https://api.mistral.ai/v1/chat/completions';
49			$this->model = $config['mistral']['text']['model'] ?? 'mistral-large-latest';
50			$this->temperature = $config['mistral']['text']['temperature'] ?? 0.7;
51
52			if (empty($this->apiKey)) {
53			throw new RuntimeException('Mistral API key is missing.');
54			}
55			}
56
57			public function generateQuestions(string $topic, int $numQuestions, string $questionType, string $language): ?string
58			{
59			$prompt = \sprintf(
60			'Generate %d "%s" questions in Aiken format in the %s language about "%s".
61			Ensure each question follows this format:
62
63			1. The question text.
64			A. Option A
65			B. Option B
66			C. Option C
67			D. Option D
68			ANSWER: (Correct answer letter)
69
70			The output should be plain text without additional symbols or markdown.',
71			$numQuestions,
72			$questionType,
73			$language,
74			$topic
75			);
76
77			return $this->requestMistralAI($prompt, 'quiz');
78			}
79
80			public function generateLearnPath(string $topic, int $chaptersCount, string $language, int $wordsCount, bool $addTests, int $numQuestions): ?array
81			{
82			// Step 1: Generate the Table of Contents
83			$tableOfContentsPrompt = \sprintf(
84			'Generate a structured table of contents for a course in "%s" with %d chapters on "%s".
85			Return a numbered list, each chapter on a new line. No conclusion.',
86			$language,
87			$chaptersCount,
88			$topic
89			);
90
91			$lpStructure = $this->requestMistralAI($tableOfContentsPrompt, 'learnpath');
92			if (!$lpStructure) {
93			return ['success' => false, 'message' => 'Failed to generate course structure.'];
94			}
95
96			// Step 2: Generate content for each chapter
97			$lpItems = [];
98			$chapters = explode("\n", trim($lpStructure));
99			foreach ($chapters as $index => $chapterTitle) {
100			$chapterTitle = trim($chapterTitle);
101			if (empty($chapterTitle)) {
102			continue;
103			}
104
105			$chapterPrompt = \sprintf(
106			'Create a learning chapter in HTML for "%s" in "%s" with %d words.
107			Title: "%s". Assume the reader already knows the context.',
108			$topic,
109			$language,
110			$wordsCount,
111			$chapterTitle
112			);
113
114			$chapterContent = $this->requestMistralAI($chapterPrompt, 'learnpath');
115			if (!$chapterContent) {
116			continue;
117			}
118
119			$lpItems[] = [
120			'title' => $chapterTitle,
121			'content' => "<html><head><title>{$chapterTitle}</title></head><body>{$chapterContent}</body></html>",
122			];
123			}
124
125			// Step 3: Generate quizzes if enabled
126			$quizItems = [];
127			if ($addTests) {
128			foreach ($lpItems as &$chapter) {
129			$quizPrompt = \sprintf(
130			'Generate %d multiple-choice questions in Aiken format in %s about "%s".
131			Ensure each question follows this format:
132
133			1. The question text.
134			A. Option A
135			B. Option B
136			C. Option C
137			D. Option D
138			ANSWER: (Correct answer letter)
139
140			Each question must have exactly 4 options and one answer line.
141			Return only valid questions without extra text.',
142			$numQuestions,
143			$language,
144			$chapter['title']
145			);
146
147			$quizContent = $this->requestMistralAI($quizPrompt, 'learnpath');
148
149			if ($quizContent) {
150			$validQuestions = $this->filterValidAikenQuestions($quizContent);
151
152			if (!empty($validQuestions)) {
153			$quizItems[] = [
154			'title' => 'Quiz: '.$chapter['title'],
155			'content' => implode("\n\n", $validQuestions),
156			];
157			}
158			}
159			}
160			}
161
162			return [
163			'success' => true,
164			'topic' => $topic,
165			'lp_items' => $lpItems,
166			'quiz_items' => $quizItems,
167			];
168			}
169
170			private function filterValidAikenQuestions(string $quizContent): array
171			{
172			$questions = preg_split('/\n{2,}/', trim($quizContent));
173
174			$validQuestions = [];
175			foreach ($questions as $questionBlock) {
176			$lines = explode("\n", trim($questionBlock));
177
178			if (\count($lines) < 6) {
179			continue;
180			}
181
182			$options = \array_slice($lines, 1, 4);
183			$validOptions = array_filter($options, fn ($line) => preg_match('/^[A-D]\. .+/', $line));
184
185			$answerLine = end($lines);
186			if (4 === \count($validOptions) && preg_match('/^ANSWER: [A-D]$/', $answerLine)) {
187			$validQuestions[] = implode("\n", $lines);
188			}
189			}
190
191			return $validQuestions;
192			}
193
194			private function requestMistralAI(string $prompt, string $toolName): ?string
195			{
196			$userId = $this->getUserId();
197			if (!$userId) {
			0 ignored issues – show Bug Best Practice introduced 2025-03-06 00:41 UTC by Report Bug Copy Issue Report The expression `$userId` of type `integer\|null` is loosely compared to `false`; this is ambiguous if the integer can be 0. You might want to explicitly use `=== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `integer` values, zero is a special case, in particular the following results might be unexpected: 0 == false // true 0 == null // true 123 == false // false 123 == null // false // It is often better to use strict comparison 0 === false // false 0 === null // false Loading history...
198			throw new RuntimeException('User not authenticated.');
199			}
200
201			$payload = [
202			'model' => $this->model,
203			'messages' => [
204			['role' => 'system', 'content' => 'You are a helpful AI assistant that generates structured educational content.'],
205			['role' => 'user', 'content' => $prompt],
206			],
207			'temperature' => $this->temperature,
208			'max_tokens' => 1000,
209			];
210
211			try {
212			$response = $this->httpClient->request('POST', $this->apiUrl, [
213			'headers' => [
214			'Authorization' => 'Bearer '.$this->apiKey,
215			'Content-Type' => 'application/json',
216			],
217			'json' => $payload,
218			]);
219
220			$statusCode = $response->getStatusCode();
221			$data = $response->toArray();
222
223			if (200 === $statusCode && isset($data['choices'][0]['message']['content'])) {
224			$generatedContent = $data['choices'][0]['message']['content'];
225
226			$aiRequest = new AiRequests();
227			$aiRequest->setUserId($userId)
228			->setToolName($toolName)
229			->setRequestText($prompt)
230			->setPromptTokens($data['usage']['prompt_tokens'] ?? 0)
231			->setCompletionTokens($data['usage']['completion_tokens'] ?? 0)
232			->setTotalTokens($data['usage']['total_tokens'] ?? 0)
233			->setAiProvider('mistral')
234			;
235
236			$this->aiRequestsRepository->save($aiRequest);
237
238			return $generatedContent;
239			}
240
241			return null;
242			} catch (Exception $e) {
243			error_log('[AI][Mistral] Exception: '.$e->getMessage());
244
245			return null;
246			}
247			}
248
249			public function gradeOpenAnswer(string $prompt, string $toolName): ?string
250			{
251			return $this->requestMistralAI($prompt, $toolName);
252			}
253
254			private function getUserId(): ?int
255			{
256			$user = $this->security->getUser();
257
258			return $user instanceof UserInterface ? $user->getId() : null;
259			}
260			}
261

chamilo / chamilo-lms

Pull Request — master (#7304)

MistralProvider::generateLearnPath() B

Complexity

Size

Duplication

Importance

How to fix Long Method

Long Method

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