Add complete Laravel LLM Gateway implementation
Core Features: - Multi-provider support (OpenAI, Anthropic, DeepSeek, Gemini, Mistral) - Provider service architecture with abstract base class - Dynamic model discovery from provider APIs - Encrypted per-user provider credentials storage Admin Interface: - Complete admin panel with Livewire components - User management with CRUD operations - API key management with testing capabilities - Budget system with limits and reset schedules - Usage logs with filtering and CSV export - Model pricing management with cost calculator - Dashboard with Chart.js visualizations Database Schema: - MariaDB migrations for all tables - User provider credentials (encrypted) - LLM request logging - Budget tracking and rate limiting - Model pricing configuration API Implementation: - OpenAI-compatible endpoints - Budget checking middleware - Rate limit enforcement - Request logging jobs - Cost calculation service Testing: - Unit tests for all provider services - Provider factory tests - Cost calculator tests Documentation: - Admin user seeder - Model pricing seeder - Configuration files
This commit is contained in:
wtrinkl
48
laravel-app/app/Services/LLM/Contracts/ProviderInterface.php
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48
laravel-app/app/Services/LLM/Contracts/ProviderInterface.php
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@@ -0,0 +1,48 @@
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<?php
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namespace App\Services\LLM\Contracts;
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interface ProviderInterface
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{
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/**
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* Send a chat completion request to the provider
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*
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* @param array $messages Array of message objects with 'role' and 'content'
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* @param array $options Additional options (model, temperature, max_tokens, etc.)
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* @return array Raw provider response
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* @throws \App\Exceptions\ProviderException
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*/
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public function chatCompletion(array $messages, array $options = []): array;
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/**
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* Normalize provider response to common format
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*
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* @param array $response Raw provider response
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* @return array Normalized response with: id, model, content, usage, finish_reason
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*/
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public function normalizeResponse(array $response): array;
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/**
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* Calculate cost for given token usage
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*
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* @param int $promptTokens Number of prompt tokens
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* @param int $completionTokens Number of completion tokens
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* @param string $model Model name
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* @return float Total cost in USD
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*/
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public function calculateCost(int $promptTokens, int $completionTokens, string $model): float;
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/**
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* Get supported models for this provider
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*
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* @return array List of supported model names
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*/
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public function getSupportedModels(): array;
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/**
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* Validate API key
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*
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* @return bool True if API key is valid
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*/
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public function validateApiKey(): bool;
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}
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128
laravel-app/app/Services/LLM/CostCalculator.php
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128
laravel-app/app/Services/LLM/CostCalculator.php
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@@ -0,0 +1,128 @@
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<?php
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namespace App\Services\LLM;
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use App\Models\ModelPricing;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Support\Facades\Log;
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class CostCalculator
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{
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/**
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* Calculate cost for a specific provider and model
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*
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* @param string $provider Provider name (openai, anthropic, etc.)
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* @param string $model Model name
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* @param int $promptTokens Number of prompt tokens
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* @param int $completionTokens Number of completion tokens
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* @return array ['prompt_cost', 'completion_cost', 'total_cost']
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*/
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public function calculate(
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string $provider,
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string $model,
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int $promptTokens,
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int $completionTokens
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): array {
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$pricing = $this->getPricing($provider, $model);
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if (!$pricing) {
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Log::warning("No pricing found for {$provider}/{$model}, returning zero cost");
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return [
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'prompt_cost' => 0.0,
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'completion_cost' => 0.0,
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'total_cost' => 0.0,
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];
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}
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$promptCost = ($promptTokens / 1_000_000) * $pricing->input_price_per_million;
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$completionCost = ($completionTokens / 1_000_000) * $pricing->output_price_per_million;
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$totalCost = $promptCost + $completionCost;
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return [
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'prompt_cost' => round($promptCost, 6),
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'completion_cost' => round($completionCost, 6),
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'total_cost' => round($totalCost, 6),
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];
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}
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/**
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* Estimate cost before making the request
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* Uses average token estimation
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*
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* @param string $provider
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* @param string $model
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* @param int $estimatedPromptTokens
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* @param int $estimatedCompletionTokens
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* @return float Estimated total cost
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*/
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public function estimateCost(
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string $provider,
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string $model,
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int $estimatedPromptTokens,
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int $estimatedCompletionTokens
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): float {
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$costs = $this->calculate($provider, $model, $estimatedPromptTokens, $estimatedCompletionTokens);
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return $costs['total_cost'];
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}
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/**
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* Get pricing from cache or database
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*
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* @param string $provider
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* @param string $model
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* @return ModelPricing|null
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*/
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private function getPricing(string $provider, string $model): ?ModelPricing
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{
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$cacheKey = "pricing:{$provider}:{$model}";
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$cacheTTL = 3600; // 1 hour
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return Cache::remember($cacheKey, $cacheTTL, function () use ($provider, $model) {
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return ModelPricing::where('provider', $provider)
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->where('model', $model)
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->where('is_active', true)
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->where('effective_from', '<=', now())
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->where(function ($query) {
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$query->whereNull('effective_until')
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->orWhere('effective_until', '>=', now());
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})
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->orderBy('effective_from', 'desc')
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->first();
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});
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}
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/**
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* Clear pricing cache for a specific provider/model
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*
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* @param string|null $provider
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* @param string|null $model
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* @return void
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*/
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public function clearCache(?string $provider = null, ?string $model = null): void
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{
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if ($provider && $model) {
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Cache::forget("pricing:{$provider}:{$model}");
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} else {
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// Clear all pricing cache
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Cache::flush();
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}
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}
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/**
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* Get all active pricing entries
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*
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* @return \Illuminate\Support\Collection
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*/
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public function getAllActivePricing(): \Illuminate\Support\Collection
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{
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return ModelPricing::where('is_active', true)
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->where('effective_from', '<=', now())
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->where(function ($query) {
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$query->whereNull('effective_until')
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->orWhere('effective_until', '>=', now());
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})
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->orderBy('provider')
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->orderBy('model')
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->get();
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}
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}
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172
laravel-app/app/Services/LLM/GatewayService.php
Normal file
172
laravel-app/app/Services/LLM/GatewayService.php
Normal file
@@ -0,0 +1,172 @@
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<?php
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namespace App\Services\LLM;
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use App\Models\User;
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use App\Models\UserProviderCredential;
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use App\Exceptions\{ProviderException, InsufficientBudgetException, RateLimitExceededException};
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use Illuminate\Support\Facades\Log;
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class GatewayService
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{
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public function __construct(
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private CostCalculator $costCalculator,
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private RequestLogger $requestLogger,
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) {}
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/**
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* Process a chat completion request through the gateway
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*
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* @param User $user
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* @param string $provider
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* @param string $model
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* @param array $messages
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* @param array $options
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* @param string|null $ipAddress
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* @param string|null $userAgent
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* @return array
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* @throws ProviderException
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* @throws InsufficientBudgetException
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*/
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public function chatCompletion(
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User $user,
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string $provider,
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string $model,
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array $messages,
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array $options = [],
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?string $ipAddress = null,
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?string $userAgent = null
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): array {
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$startTime = microtime(true);
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// 1. Get user's API credentials
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$credential = $this->getUserCredential($user, $provider);
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// 2. Create provider instance
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$providerInstance = ProviderFactory::create($provider, $credential->api_key);
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// 3. Build request payload
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$requestPayload = [
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'provider' => $provider,
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'model' => $model,
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'messages' => $messages,
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'options' => $options,
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];
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try {
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// 4. Make the API request
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$response = $providerInstance->chatCompletion($messages, array_merge($options, ['model' => $model]));
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// 5. Normalize response
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$normalized = $providerInstance->normalizeResponse($response);
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// 6. Calculate response time
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$responseTimeMs = (int) round((microtime(true) - $startTime) * 1000);
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// 7. Calculate costs
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$costs = $this->costCalculator->calculate(
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$provider,
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$normalized['model'],
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$normalized['usage']['prompt_tokens'],
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$normalized['usage']['completion_tokens']
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);
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// 8. Log request asynchronously
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$requestId = $this->requestLogger->logSuccess(
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$user->id,
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$provider,
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$normalized['model'],
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$requestPayload,
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$normalized,
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$costs,
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$responseTimeMs,
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$ipAddress,
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$userAgent
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);
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// 9. Update user budget (synchronously for accuracy)
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$this->updateUserBudget($user, $costs['total_cost']);
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// 10. Return response with metadata
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return [
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'success' => true,
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'request_id' => $requestId,
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'provider' => $provider,
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'model' => $normalized['model'],
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'content' => $normalized['content'],
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'role' => $normalized['role'],
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'finish_reason' => $normalized['finish_reason'],
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'usage' => $normalized['usage'],
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'cost' => $costs,
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'response_time_ms' => $responseTimeMs,
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];
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} catch (ProviderException $e) {
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// Log failure
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$this->requestLogger->logFailure(
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$user->id,
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$provider,
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$model,
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$requestPayload,
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$e->getMessage(),
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$e->getCode(),
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$ipAddress,
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$userAgent
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);
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throw $e;
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}
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}
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/**
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* Get user's credential for a provider
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*/
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private function getUserCredential(User $user, string $provider): UserProviderCredential
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{
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$credential = UserProviderCredential::where('user_id', $user->id)
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->where('provider', $provider)
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->where('is_active', true)
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->first();
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if (!$credential) {
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throw new ProviderException(
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"No active API credentials found for provider: {$provider}",
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400
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);
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}
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// Update last used timestamp
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$credential->update(['last_used_at' => now()]);
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return $credential;
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}
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/**
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* Update user's budget with spending
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*/
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private function updateUserBudget(User $user, float $cost): void
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{
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$budget = $user->budget;
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if (!$budget) {
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return; // No budget configured
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}
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$budget->increment('current_month_spending', $cost);
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$budget->increment('current_day_spending', $cost);
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// Check if budget exceeded
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if ($budget->current_month_spending >= $budget->monthly_limit) {
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$budget->update(['is_budget_exceeded' => true]);
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}
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// Check alert threshold
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||||
if ($budget->alert_threshold_percentage) {
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$threshold = $budget->monthly_limit * ($budget->alert_threshold_percentage / 100);
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||||
if ($budget->current_month_spending >= $threshold && !$budget->last_alert_sent_at) {
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// TODO: Dispatch alert notification
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$budget->update(['last_alert_sent_at' => now()]);
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}
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||||
}
|
||||
}
|
||||
}
|
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62
laravel-app/app/Services/LLM/ProviderFactory.php
Normal file
62
laravel-app/app/Services/LLM/ProviderFactory.php
Normal file
@@ -0,0 +1,62 @@
|
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<?php
|
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|
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namespace App\Services\LLM;
|
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|
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use App\Services\LLM\Contracts\ProviderInterface;
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use App\Services\LLM\Providers\{
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OpenAIProvider,
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AnthropicProvider,
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MistralProvider,
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GeminiProvider,
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DeepSeekProvider
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||||
};
|
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|
||||
class ProviderFactory
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||||
{
|
||||
/**
|
||||
* Create a provider instance
|
||||
*
|
||||
* @param string $provider Provider name (openai, anthropic, mistral, gemini, deepseek)
|
||||
* @param string $apiKey API key for the provider
|
||||
* @return ProviderInterface
|
||||
* @throws \InvalidArgumentException
|
||||
*/
|
||||
public static function create(string $provider, string $apiKey): ProviderInterface
|
||||
{
|
||||
return match (strtolower($provider)) {
|
||||
'openai' => new OpenAIProvider($apiKey),
|
||||
'anthropic' => new AnthropicProvider($apiKey),
|
||||
'mistral' => new MistralProvider($apiKey),
|
||||
'gemini' => new GeminiProvider($apiKey),
|
||||
'deepseek' => new DeepSeekProvider($apiKey),
|
||||
default => throw new \InvalidArgumentException("Unknown provider: {$provider}")
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Get list of supported providers
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
public static function getSupportedProviders(): array
|
||||
{
|
||||
return [
|
||||
'openai',
|
||||
'anthropic',
|
||||
'mistral',
|
||||
'gemini',
|
||||
'deepseek',
|
||||
];
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if a provider is supported
|
||||
*
|
||||
* @param string $provider
|
||||
* @return bool
|
||||
*/
|
||||
public static function isSupported(string $provider): bool
|
||||
{
|
||||
return in_array(strtolower($provider), self::getSupportedProviders());
|
||||
}
|
||||
}
|
||||
103
laravel-app/app/Services/LLM/Providers/AbstractProvider.php
Normal file
103
laravel-app/app/Services/LLM/Providers/AbstractProvider.php
Normal file
@@ -0,0 +1,103 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM\Providers;
|
||||
|
||||
use App\Services\LLM\Contracts\ProviderInterface;
|
||||
use App\Exceptions\ProviderException;
|
||||
use Illuminate\Support\Facades\Http;
|
||||
use Illuminate\Support\Facades\Log;
|
||||
|
||||
abstract class AbstractProvider implements ProviderInterface
|
||||
{
|
||||
protected string $apiKey;
|
||||
protected string $baseUrl;
|
||||
protected int $timeout = 60;
|
||||
protected int $retryAttempts = 3;
|
||||
protected int $retryDelay = 1000; // milliseconds
|
||||
|
||||
public function __construct(string $apiKey)
|
||||
{
|
||||
$this->apiKey = $apiKey;
|
||||
}
|
||||
|
||||
/**
|
||||
* Build request payload for provider
|
||||
*/
|
||||
abstract protected function buildRequest(array $messages, array $options): array;
|
||||
|
||||
/**
|
||||
* Get authorization headers for provider
|
||||
*/
|
||||
abstract protected function getAuthHeaders(): array;
|
||||
|
||||
/**
|
||||
* Make HTTP request with retry logic
|
||||
*/
|
||||
protected function makeRequest(string $endpoint, array $data): array
|
||||
{
|
||||
$attempt = 0;
|
||||
$lastException = null;
|
||||
|
||||
while ($attempt < $this->retryAttempts) {
|
||||
try {
|
||||
$response = Http::withHeaders($this->getAuthHeaders())
|
||||
->timeout($this->timeout)
|
||||
->post($this->baseUrl . $endpoint, $data);
|
||||
|
||||
if ($response->successful()) {
|
||||
return $response->json();
|
||||
}
|
||||
|
||||
// Handle specific HTTP errors
|
||||
if ($response->status() === 401) {
|
||||
throw new ProviderException('Invalid API key', 401);
|
||||
}
|
||||
|
||||
if ($response->status() === 429) {
|
||||
throw new ProviderException('Rate limit exceeded', 429);
|
||||
}
|
||||
|
||||
if ($response->status() >= 500) {
|
||||
throw new ProviderException('Provider server error', $response->status());
|
||||
}
|
||||
|
||||
throw new ProviderException(
|
||||
'Request failed: ' . $response->body(),
|
||||
$response->status()
|
||||
);
|
||||
|
||||
} catch (\Exception $e) {
|
||||
$lastException = $e;
|
||||
$attempt++;
|
||||
|
||||
if ($attempt < $this->retryAttempts) {
|
||||
Log::warning("Provider request failed, retrying ({$attempt}/{$this->retryAttempts})", [
|
||||
'provider' => static::class,
|
||||
'error' => $e->getMessage()
|
||||
]);
|
||||
usleep($this->retryDelay * 1000);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
throw new ProviderException(
|
||||
'All retry attempts failed: ' . ($lastException ? $lastException->getMessage() : 'Unknown error'),
|
||||
$lastException ? $lastException->getCode() : 500
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Validate API key by making a test request
|
||||
*/
|
||||
public function validateApiKey(): bool
|
||||
{
|
||||
try {
|
||||
$this->chatCompletion([
|
||||
['role' => 'user', 'content' => 'test']
|
||||
], ['max_tokens' => 5]);
|
||||
return true;
|
||||
} catch (\Exception $e) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
113
laravel-app/app/Services/LLM/Providers/AnthropicProvider.php
Normal file
113
laravel-app/app/Services/LLM/Providers/AnthropicProvider.php
Normal file
@@ -0,0 +1,113 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM\Providers;
|
||||
|
||||
use App\Models\ModelPricing;
|
||||
use Illuminate\Support\Facades\Cache;
|
||||
|
||||
class AnthropicProvider extends AbstractProvider
|
||||
{
|
||||
protected string $baseUrl = 'https://api.anthropic.com/v1';
|
||||
private string $apiVersion = '2023-06-01';
|
||||
|
||||
protected function buildRequest(array $messages, array $options): array
|
||||
{
|
||||
// Anthropic requires system message separate
|
||||
$systemMessage = null;
|
||||
$formattedMessages = [];
|
||||
|
||||
foreach ($messages as $message) {
|
||||
if ($message['role'] === 'system') {
|
||||
$systemMessage = $message['content'];
|
||||
} else {
|
||||
$formattedMessages[] = $message;
|
||||
}
|
||||
}
|
||||
|
||||
$request = array_filter([
|
||||
'model' => $options['model'] ?? 'claude-sonnet-4',
|
||||
'max_tokens' => $options['max_tokens'] ?? 4096,
|
||||
'messages' => $formattedMessages,
|
||||
'system' => $systemMessage,
|
||||
'temperature' => $options['temperature'] ?? null,
|
||||
'top_p' => $options['top_p'] ?? null,
|
||||
'stop_sequences' => $options['stop'] ?? null,
|
||||
], fn($value) => $value !== null);
|
||||
|
||||
return $request;
|
||||
}
|
||||
|
||||
protected function getAuthHeaders(): array
|
||||
{
|
||||
return [
|
||||
'x-api-key' => $this->apiKey,
|
||||
'anthropic-version' => $this->apiVersion,
|
||||
'Content-Type' => 'application/json',
|
||||
];
|
||||
}
|
||||
|
||||
public function chatCompletion(array $messages, array $options = []): array
|
||||
{
|
||||
$data = $this->buildRequest($messages, $options);
|
||||
return $this->makeRequest('/messages', $data);
|
||||
}
|
||||
|
||||
public function normalizeResponse(array $response): array
|
||||
{
|
||||
$content = '';
|
||||
if (isset($response['content']) && is_array($response['content'])) {
|
||||
foreach ($response['content'] as $block) {
|
||||
if ($block['type'] === 'text') {
|
||||
$content .= $block['text'];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return [
|
||||
'id' => $response['id'] ?? null,
|
||||
'model' => $response['model'] ?? null,
|
||||
'content' => $content,
|
||||
'role' => $response['role'] ?? 'assistant',
|
||||
'finish_reason' => $response['stop_reason'] ?? null,
|
||||
'usage' => [
|
||||
'prompt_tokens' => $response['usage']['input_tokens'] ?? 0,
|
||||
'completion_tokens' => $response['usage']['output_tokens'] ?? 0,
|
||||
'total_tokens' => ($response['usage']['input_tokens'] ?? 0) + ($response['usage']['output_tokens'] ?? 0),
|
||||
],
|
||||
'raw_response' => $response,
|
||||
];
|
||||
}
|
||||
|
||||
public function calculateCost(int $promptTokens, int $completionTokens, string $model): float
|
||||
{
|
||||
$cacheKey = "pricing:anthropic:{$model}";
|
||||
|
||||
$pricing = Cache::remember($cacheKey, 3600, function () use ($model) {
|
||||
return ModelPricing::where('provider', 'anthropic')
|
||||
->where('model', $model)
|
||||
->where('is_active', true)
|
||||
->first();
|
||||
});
|
||||
|
||||
if (!$pricing) {
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
$promptCost = ($promptTokens / 1_000_000) * $pricing->input_price_per_million;
|
||||
$completionCost = ($completionTokens / 1_000_000) * $pricing->output_price_per_million;
|
||||
|
||||
return round($promptCost + $completionCost, 6);
|
||||
}
|
||||
|
||||
public function getSupportedModels(): array
|
||||
{
|
||||
return [
|
||||
'claude-opus-4',
|
||||
'claude-sonnet-4',
|
||||
'claude-haiku-4',
|
||||
'claude-3-opus',
|
||||
'claude-3-sonnet',
|
||||
'claude-3-haiku',
|
||||
];
|
||||
}
|
||||
}
|
||||
87
laravel-app/app/Services/LLM/Providers/DeepSeekProvider.php
Normal file
87
laravel-app/app/Services/LLM/Providers/DeepSeekProvider.php
Normal file
@@ -0,0 +1,87 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM\Providers;
|
||||
|
||||
use App\Models\ModelPricing;
|
||||
use Illuminate\Support\Facades\Cache;
|
||||
|
||||
class DeepSeekProvider extends AbstractProvider
|
||||
{
|
||||
protected string $baseUrl = 'https://api.deepseek.com/v1';
|
||||
|
||||
protected function buildRequest(array $messages, array $options): array
|
||||
{
|
||||
return array_filter([
|
||||
'model' => $options['model'] ?? 'deepseek-chat',
|
||||
'messages' => $messages,
|
||||
'temperature' => $options['temperature'] ?? 0.7,
|
||||
'max_tokens' => $options['max_tokens'] ?? null,
|
||||
'top_p' => $options['top_p'] ?? null,
|
||||
'frequency_penalty' => $options['frequency_penalty'] ?? null,
|
||||
'presence_penalty' => $options['presence_penalty'] ?? null,
|
||||
'stop' => $options['stop'] ?? null,
|
||||
'stream' => false,
|
||||
], fn($value) => $value !== null);
|
||||
}
|
||||
|
||||
protected function getAuthHeaders(): array
|
||||
{
|
||||
return [
|
||||
'Authorization' => 'Bearer ' . $this->apiKey,
|
||||
'Content-Type' => 'application/json',
|
||||
];
|
||||
}
|
||||
|
||||
public function chatCompletion(array $messages, array $options = []): array
|
||||
{
|
||||
$data = $this->buildRequest($messages, $options);
|
||||
return $this->makeRequest('/chat/completions', $data);
|
||||
}
|
||||
|
||||
public function normalizeResponse(array $response): array
|
||||
{
|
||||
return [
|
||||
'id' => $response['id'] ?? null,
|
||||
'model' => $response['model'] ?? null,
|
||||
'content' => $response['choices'][0]['message']['content'] ?? '',
|
||||
'role' => $response['choices'][0]['message']['role'] ?? 'assistant',
|
||||
'finish_reason' => $response['choices'][0]['finish_reason'] ?? null,
|
||||
'usage' => [
|
||||
'prompt_tokens' => $response['usage']['prompt_tokens'] ?? 0,
|
||||
'completion_tokens' => $response['usage']['completion_tokens'] ?? 0,
|
||||
'total_tokens' => $response['usage']['total_tokens'] ?? 0,
|
||||
],
|
||||
'raw_response' => $response,
|
||||
];
|
||||
}
|
||||
|
||||
public function calculateCost(int $promptTokens, int $completionTokens, string $model): float
|
||||
{
|
||||
$cacheKey = "pricing:deepseek:{$model}";
|
||||
|
||||
$pricing = Cache::remember($cacheKey, 3600, function () use ($model) {
|
||||
return ModelPricing::where('provider', 'deepseek')
|
||||
->where('model', $model)
|
||||
->where('is_active', true)
|
||||
->first();
|
||||
});
|
||||
|
||||
if (!$pricing) {
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
$promptCost = ($promptTokens / 1_000_000) * $pricing->input_price_per_million;
|
||||
$completionCost = ($completionTokens / 1_000_000) * $pricing->output_price_per_million;
|
||||
|
||||
return round($promptCost + $completionCost, 6);
|
||||
}
|
||||
|
||||
public function getSupportedModels(): array
|
||||
{
|
||||
return [
|
||||
'deepseek-chat',
|
||||
'deepseek-coder',
|
||||
'deepseek-reasoner',
|
||||
];
|
||||
}
|
||||
}
|
||||
132
laravel-app/app/Services/LLM/Providers/GeminiProvider.php
Normal file
132
laravel-app/app/Services/LLM/Providers/GeminiProvider.php
Normal file
@@ -0,0 +1,132 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM\Providers;
|
||||
|
||||
use App\Models\ModelPricing;
|
||||
use Illuminate\Support\Facades\Cache;
|
||||
|
||||
class GeminiProvider extends AbstractProvider
|
||||
{
|
||||
protected string $baseUrl = 'https://generativelanguage.googleapis.com/v1beta';
|
||||
|
||||
protected function buildRequest(array $messages, array $options): array
|
||||
{
|
||||
// Gemini uses a different message format
|
||||
$contents = [];
|
||||
|
||||
foreach ($messages as $message) {
|
||||
$role = $message['role'];
|
||||
|
||||
// Gemini uses 'model' instead of 'assistant' and doesn't support 'system'
|
||||
if ($role === 'assistant') {
|
||||
$role = 'model';
|
||||
} elseif ($role === 'system') {
|
||||
// Convert system messages to user messages with context
|
||||
$role = 'user';
|
||||
}
|
||||
|
||||
$contents[] = [
|
||||
'role' => $role,
|
||||
'parts' => [
|
||||
['text' => $message['content']]
|
||||
]
|
||||
];
|
||||
}
|
||||
|
||||
$request = [
|
||||
'contents' => $contents,
|
||||
];
|
||||
|
||||
// Add generation config if options provided
|
||||
$generationConfig = array_filter([
|
||||
'temperature' => $options['temperature'] ?? null,
|
||||
'maxOutputTokens' => $options['max_tokens'] ?? null,
|
||||
'topP' => $options['top_p'] ?? null,
|
||||
'stopSequences' => $options['stop'] ?? null,
|
||||
], fn($value) => $value !== null);
|
||||
|
||||
if (!empty($generationConfig)) {
|
||||
$request['generationConfig'] = $generationConfig;
|
||||
}
|
||||
|
||||
return $request;
|
||||
}
|
||||
|
||||
protected function getAuthHeaders(): array
|
||||
{
|
||||
return [
|
||||
'Content-Type' => 'application/json',
|
||||
];
|
||||
}
|
||||
|
||||
public function chatCompletion(array $messages, array $options = []): array
|
||||
{
|
||||
$model = $options['model'] ?? 'gemini-pro';
|
||||
$data = $this->buildRequest($messages, $options);
|
||||
|
||||
// Gemini uses API key as query parameter
|
||||
$endpoint = "/models/{$model}:generateContent?key={$this->apiKey}";
|
||||
|
||||
return $this->makeRequest($endpoint, $data);
|
||||
}
|
||||
|
||||
public function normalizeResponse(array $response): array
|
||||
{
|
||||
$candidate = $response['candidates'][0] ?? [];
|
||||
$content = $candidate['content'] ?? [];
|
||||
$parts = $content['parts'] ?? [];
|
||||
|
||||
$textContent = '';
|
||||
foreach ($parts as $part) {
|
||||
$textContent .= $part['text'] ?? '';
|
||||
}
|
||||
|
||||
$usageMetadata = $response['usageMetadata'] ?? [];
|
||||
|
||||
return [
|
||||
'id' => null, // Gemini doesn't provide an ID
|
||||
'model' => $response['modelVersion'] ?? null,
|
||||
'content' => $textContent,
|
||||
'role' => 'assistant',
|
||||
'finish_reason' => $candidate['finishReason'] ?? null,
|
||||
'usage' => [
|
||||
'prompt_tokens' => $usageMetadata['promptTokenCount'] ?? 0,
|
||||
'completion_tokens' => $usageMetadata['candidatesTokenCount'] ?? 0,
|
||||
'total_tokens' => $usageMetadata['totalTokenCount'] ?? 0,
|
||||
],
|
||||
'raw_response' => $response,
|
||||
];
|
||||
}
|
||||
|
||||
public function calculateCost(int $promptTokens, int $completionTokens, string $model): float
|
||||
{
|
||||
$cacheKey = "pricing:gemini:{$model}";
|
||||
|
||||
$pricing = Cache::remember($cacheKey, 3600, function () use ($model) {
|
||||
return ModelPricing::where('provider', 'gemini')
|
||||
->where('model', $model)
|
||||
->where('is_active', true)
|
||||
->first();
|
||||
});
|
||||
|
||||
if (!$pricing) {
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
$promptCost = ($promptTokens / 1_000_000) * $pricing->input_price_per_million;
|
||||
$completionCost = ($completionTokens / 1_000_000) * $pricing->output_price_per_million;
|
||||
|
||||
return round($promptCost + $completionCost, 6);
|
||||
}
|
||||
|
||||
public function getSupportedModels(): array
|
||||
{
|
||||
return [
|
||||
'gemini-pro',
|
||||
'gemini-pro-vision',
|
||||
'gemini-1.5-pro',
|
||||
'gemini-1.5-flash',
|
||||
'gemini-ultra',
|
||||
];
|
||||
}
|
||||
}
|
||||
90
laravel-app/app/Services/LLM/Providers/MistralProvider.php
Normal file
90
laravel-app/app/Services/LLM/Providers/MistralProvider.php
Normal file
@@ -0,0 +1,90 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM\Providers;
|
||||
|
||||
use App\Models\ModelPricing;
|
||||
use Illuminate\Support\Facades\Cache;
|
||||
|
||||
class MistralProvider extends AbstractProvider
|
||||
{
|
||||
protected string $baseUrl = 'https://api.mistral.ai/v1';
|
||||
|
||||
protected function buildRequest(array $messages, array $options): array
|
||||
{
|
||||
return array_filter([
|
||||
'model' => $options['model'] ?? 'mistral-small-latest',
|
||||
'messages' => $messages,
|
||||
'temperature' => $options['temperature'] ?? 0.7,
|
||||
'max_tokens' => $options['max_tokens'] ?? null,
|
||||
'top_p' => $options['top_p'] ?? null,
|
||||
'stream' => false,
|
||||
'safe_prompt' => $options['safe_prompt'] ?? false,
|
||||
'random_seed' => $options['random_seed'] ?? null,
|
||||
], fn($value) => $value !== null && $value !== false);
|
||||
}
|
||||
|
||||
protected function getAuthHeaders(): array
|
||||
{
|
||||
return [
|
||||
'Authorization' => 'Bearer ' . $this->apiKey,
|
||||
'Content-Type' => 'application/json',
|
||||
];
|
||||
}
|
||||
|
||||
public function chatCompletion(array $messages, array $options = []): array
|
||||
{
|
||||
$data = $this->buildRequest($messages, $options);
|
||||
return $this->makeRequest('/chat/completions', $data);
|
||||
}
|
||||
|
||||
public function normalizeResponse(array $response): array
|
||||
{
|
||||
return [
|
||||
'id' => $response['id'] ?? null,
|
||||
'model' => $response['model'] ?? null,
|
||||
'content' => $response['choices'][0]['message']['content'] ?? '',
|
||||
'role' => $response['choices'][0]['message']['role'] ?? 'assistant',
|
||||
'finish_reason' => $response['choices'][0]['finish_reason'] ?? null,
|
||||
'usage' => [
|
||||
'prompt_tokens' => $response['usage']['prompt_tokens'] ?? 0,
|
||||
'completion_tokens' => $response['usage']['completion_tokens'] ?? 0,
|
||||
'total_tokens' => $response['usage']['total_tokens'] ?? 0,
|
||||
],
|
||||
'raw_response' => $response,
|
||||
];
|
||||
}
|
||||
|
||||
public function calculateCost(int $promptTokens, int $completionTokens, string $model): float
|
||||
{
|
||||
$cacheKey = "pricing:mistral:{$model}";
|
||||
|
||||
$pricing = Cache::remember($cacheKey, 3600, function () use ($model) {
|
||||
return ModelPricing::where('provider', 'mistral')
|
||||
->where('model', $model)
|
||||
->where('is_active', true)
|
||||
->first();
|
||||
});
|
||||
|
||||
if (!$pricing) {
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
$promptCost = ($promptTokens / 1_000_000) * $pricing->input_price_per_million;
|
||||
$completionCost = ($completionTokens / 1_000_000) * $pricing->output_price_per_million;
|
||||
|
||||
return round($promptCost + $completionCost, 6);
|
||||
}
|
||||
|
||||
public function getSupportedModels(): array
|
||||
{
|
||||
return [
|
||||
'mistral-large-latest',
|
||||
'mistral-medium-latest',
|
||||
'mistral-small-latest',
|
||||
'mistral-tiny',
|
||||
'open-mistral-7b',
|
||||
'open-mixtral-8x7b',
|
||||
'open-mixtral-8x22b',
|
||||
];
|
||||
}
|
||||
}
|
||||
89
laravel-app/app/Services/LLM/Providers/OpenAIProvider.php
Normal file
89
laravel-app/app/Services/LLM/Providers/OpenAIProvider.php
Normal file
@@ -0,0 +1,89 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM\Providers;
|
||||
|
||||
use App\Models\ModelPricing;
|
||||
use Illuminate\Support\Facades\Cache;
|
||||
|
||||
class OpenAIProvider extends AbstractProvider
|
||||
{
|
||||
protected string $baseUrl = 'https://api.openai.com/v1';
|
||||
|
||||
protected function buildRequest(array $messages, array $options): array
|
||||
{
|
||||
return array_filter([
|
||||
'model' => $options['model'] ?? 'gpt-4o-mini',
|
||||
'messages' => $messages,
|
||||
'temperature' => $options['temperature'] ?? 0.7,
|
||||
'max_tokens' => $options['max_tokens'] ?? null,
|
||||
'top_p' => $options['top_p'] ?? null,
|
||||
'frequency_penalty' => $options['frequency_penalty'] ?? null,
|
||||
'presence_penalty' => $options['presence_penalty'] ?? null,
|
||||
'stop' => $options['stop'] ?? null,
|
||||
'stream' => false,
|
||||
], fn($value) => $value !== null);
|
||||
}
|
||||
|
||||
protected function getAuthHeaders(): array
|
||||
{
|
||||
return [
|
||||
'Authorization' => 'Bearer ' . $this->apiKey,
|
||||
'Content-Type' => 'application/json',
|
||||
];
|
||||
}
|
||||
|
||||
public function chatCompletion(array $messages, array $options = []): array
|
||||
{
|
||||
$data = $this->buildRequest($messages, $options);
|
||||
return $this->makeRequest('/chat/completions', $data);
|
||||
}
|
||||
|
||||
public function normalizeResponse(array $response): array
|
||||
{
|
||||
return [
|
||||
'id' => $response['id'] ?? null,
|
||||
'model' => $response['model'] ?? null,
|
||||
'content' => $response['choices'][0]['message']['content'] ?? '',
|
||||
'role' => $response['choices'][0]['message']['role'] ?? 'assistant',
|
||||
'finish_reason' => $response['choices'][0]['finish_reason'] ?? null,
|
||||
'usage' => [
|
||||
'prompt_tokens' => $response['usage']['prompt_tokens'] ?? 0,
|
||||
'completion_tokens' => $response['usage']['completion_tokens'] ?? 0,
|
||||
'total_tokens' => $response['usage']['total_tokens'] ?? 0,
|
||||
],
|
||||
'raw_response' => $response,
|
||||
];
|
||||
}
|
||||
|
||||
public function calculateCost(int $promptTokens, int $completionTokens, string $model): float
|
||||
{
|
||||
$cacheKey = "pricing:openai:{$model}";
|
||||
|
||||
$pricing = Cache::remember($cacheKey, 3600, function () use ($model) {
|
||||
return ModelPricing::where('provider', 'openai')
|
||||
->where('model', $model)
|
||||
->where('is_active', true)
|
||||
->first();
|
||||
});
|
||||
|
||||
if (!$pricing) {
|
||||
return 0.0;
|
||||
}
|
||||
|
||||
$promptCost = ($promptTokens / 1_000_000) * $pricing->input_price_per_million;
|
||||
$completionCost = ($completionTokens / 1_000_000) * $pricing->output_price_per_million;
|
||||
|
||||
return round($promptCost + $completionCost, 6);
|
||||
}
|
||||
|
||||
public function getSupportedModels(): array
|
||||
{
|
||||
return [
|
||||
'gpt-4o',
|
||||
'gpt-4o-mini',
|
||||
'gpt-4-turbo',
|
||||
'gpt-4',
|
||||
'gpt-3.5-turbo',
|
||||
];
|
||||
}
|
||||
}
|
||||
96
laravel-app/app/Services/LLM/RequestLogger.php
Normal file
96
laravel-app/app/Services/LLM/RequestLogger.php
Normal file
@@ -0,0 +1,96 @@
|
||||
<?php
|
||||
|
||||
namespace App\Services\LLM;
|
||||
|
||||
use App\Jobs\LogLlmRequest;
|
||||
use Illuminate\Support\Str;
|
||||
|
||||
class RequestLogger
|
||||
{
|
||||
/**
|
||||
* Log a successful LLM request
|
||||
*/
|
||||
public function logSuccess(
|
||||
int $userId,
|
||||
string $provider,
|
||||
string $model,
|
||||
array $requestPayload,
|
||||
array $responsePayload,
|
||||
array $costs,
|
||||
int $responseTimeMs,
|
||||
?string $ipAddress = null,
|
||||
?string $userAgent = null
|
||||
): string {
|
||||
$requestId = $this->generateRequestId();
|
||||
|
||||
LogLlmRequest::dispatch(
|
||||
userId: $userId,
|
||||
provider: $provider,
|
||||
model: $model,
|
||||
requestPayload: $requestPayload,
|
||||
responsePayload: $responsePayload,
|
||||
promptTokens: $responsePayload['usage']['prompt_tokens'] ?? 0,
|
||||
completionTokens: $responsePayload['usage']['completion_tokens'] ?? 0,
|
||||
totalTokens: $responsePayload['usage']['total_tokens'] ?? 0,
|
||||
responseTimeMs: $responseTimeMs,
|
||||
promptCost: $costs['prompt_cost'],
|
||||
completionCost: $costs['completion_cost'],
|
||||
totalCost: $costs['total_cost'],
|
||||
status: 'success',
|
||||
errorMessage: null,
|
||||
httpStatus: 200,
|
||||
ipAddress: $ipAddress,
|
||||
userAgent: $userAgent,
|
||||
requestId: $requestId
|
||||
);
|
||||
|
||||
return $requestId;
|
||||
}
|
||||
|
||||
/**
|
||||
* Log a failed LLM request
|
||||
*/
|
||||
public function logFailure(
|
||||
int $userId,
|
||||
string $provider,
|
||||
string $model,
|
||||
array $requestPayload,
|
||||
string $errorMessage,
|
||||
int $httpStatus,
|
||||
?string $ipAddress = null,
|
||||
?string $userAgent = null
|
||||
): string {
|
||||
$requestId = $this->generateRequestId();
|
||||
|
||||
LogLlmRequest::dispatch(
|
||||
userId: $userId,
|
||||
provider: $provider,
|
||||
model: $model,
|
||||
requestPayload: $requestPayload,
|
||||
responsePayload: null,
|
||||
promptTokens: 0,
|
||||
completionTokens: 0,
|
||||
totalTokens: 0,
|
||||
responseTimeMs: null,
|
||||
promptCost: 0.0,
|
||||
completionCost: 0.0,
|
||||
totalCost: 0.0,
|
||||
status: 'failed',
|
||||
errorMessage: $errorMessage,
|
||||
httpStatus: $httpStatus,
|
||||
ipAddress: $ipAddress,
|
||||
userAgent: $userAgent,
|
||||
requestId: $requestId
|
||||
);
|
||||
|
||||
return $requestId;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate unique request ID
|
||||
*/
|
||||
private function generateRequestId(): string
|
||||
{
|
||||
return 'req_' . Str::random(24);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user