Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
0.00% |
0 / 102 |
|
0.00% |
0 / 6 |
CRAP | |
0.00% |
0 / 1 |
| AiChatService | |
0.00% |
0 / 102 |
|
0.00% |
0 / 6 |
506 | |
0.00% |
0 / 1 |
| __construct | |
0.00% |
0 / 4 |
|
0.00% |
0 / 1 |
2 | |||
| generateReply | |
0.00% |
0 / 12 |
|
0.00% |
0 / 1 |
42 | |||
| buildSystemPrompt | |
0.00% |
0 / 23 |
|
0.00% |
0 / 1 |
6 | |||
| callGemini | |
0.00% |
0 / 27 |
|
0.00% |
0 / 1 |
30 | |||
| callOpenAI | |
0.00% |
0 / 16 |
|
0.00% |
0 / 1 |
20 | |||
| callClaude | |
0.00% |
0 / 20 |
|
0.00% |
0 / 1 |
20 | |||
| 1 | <?php |
| 2 | |
| 3 | namespace App\Service; |
| 4 | |
| 5 | use App\Models\admin\Product; |
| 6 | use App\Models\PaymentType; |
| 7 | use App\Models\Setting; |
| 8 | use App\Models\Shipping; |
| 9 | use App\Models\SocialSetting; |
| 10 | use Illuminate\Support\Facades\Http; |
| 11 | use Illuminate\Support\Facades\Log; |
| 12 | |
| 13 | class AiChatService |
| 14 | { |
| 15 | protected string $provider; |
| 16 | |
| 17 | protected string $apiKey; |
| 18 | |
| 19 | protected string $model; |
| 20 | |
| 21 | protected string $systemPrompt; |
| 22 | |
| 23 | public function __construct() |
| 24 | { |
| 25 | $this->provider = (string) SocialSetting::getSetting('ai_provider', 'gemini'); |
| 26 | $this->apiKey = (string) SocialSetting::getSetting('ai_api_key', ''); |
| 27 | $this->model = (string) SocialSetting::getSetting('ai_model', ''); |
| 28 | $this->systemPrompt = (string) SocialSetting::getSetting('ai_system_prompt', ''); |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Generate AI reply based on conversation history |
| 33 | * |
| 34 | * @param array $history [['role'=>'user','content'=>'...'], ...] |
| 35 | * @param string $userMessage Latest user message |
| 36 | */ |
| 37 | public function generateReply(array $history, string $userMessage): string |
| 38 | { |
| 39 | if (empty($this->apiKey)) { |
| 40 | return 'দুঃখিত, AI সেটিংস সঠিকভাবে কনফিগার করা হয়নি।'; |
| 41 | } |
| 42 | |
| 43 | // Build the full system prompt with dynamic business context |
| 44 | $fullSystemPrompt = $this->buildSystemPrompt(); |
| 45 | |
| 46 | // Append latest user message to history |
| 47 | $history[] = ['role' => 'user', 'content' => $userMessage]; |
| 48 | |
| 49 | try { |
| 50 | return match ($this->provider) { |
| 51 | 'openai' => $this->callOpenAI($fullSystemPrompt, $history), |
| 52 | 'claude' => $this->callClaude($fullSystemPrompt, $history), |
| 53 | default => $this->callGemini($fullSystemPrompt, $history), |
| 54 | }; |
| 55 | } catch (\Throwable $e) { |
| 56 | Log::error('AI Chat Error: ' . $e->getMessage()); |
| 57 | |
| 58 | return 'দুঃখিত, এখন উত্তর দিতে পারছি না। একটু পরে আবার চেষ্টা করুন।'; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Build dynamic system prompt with business data |
| 64 | */ |
| 65 | protected function buildSystemPrompt(): string |
| 66 | { |
| 67 | $businessName = Setting::where('key', 'site_name')->value('value') ?? 'আমাদের শপ'; |
| 68 | $businessPhone = Setting::where('key', 'phone')->value('value') ?? ''; |
| 69 | $businessAddress = Setting::where('key', 'address')->value('value') ?? ''; |
| 70 | |
| 71 | // Get products |
| 72 | $products = Product::select('name', 'selling_price', 'product_code') |
| 73 | ->limit(50) |
| 74 | ->get() |
| 75 | ->map(fn ($p) => "- {$p->name} (Code: {$p->product_code}) — মূল্য: {$p->selling_price} টাকা") |
| 76 | ->join("\n"); |
| 77 | |
| 78 | // Get shipping/delivery info |
| 79 | // BUG FIX: this used to say "Dhaka" with a 60/120 split — but the |
| 80 | // real checkout flow (CheckoutController::store()) has always charged |
| 81 | // 70/120 based on Chittagong, not Dhaka (see checkout.blade.php's |
| 82 | // "Inside/Outside Chittagong" radio buttons). The chatbot was quoting |
| 83 | // customers the wrong city and the wrong "inside" rate. Now matches |
| 84 | // the real checkout pricing exactly. |
| 85 | $shippings = "- চট্টগ্রামের ভেতরে: 70 টাকা\n- চট্টগ্রামের বাইরে (সারা বাংলাদেশ): 120 টাকা"; |
| 86 | |
| 87 | // Get payment types |
| 88 | // BUG FIX: this used to query the PaymentType table (used by the |
| 89 | // admin/POS side) and fall back to "Cash on Delivery, bKash" — but |
| 90 | // the actual website checkout has no payment-method selection at |
| 91 | // all, it's Cash on Delivery only. Telling chatbot customers "bKash" |
| 92 | // is available when it isn't would create a real order-time mismatch. |
| 93 | $paymentTypes = 'শুধুমাত্র Cash on Delivery (COD) — পণ্য হাতে পাওয়ার সময় টাকা পরিশোধ করতে হবে। অগ্রিম পেমেন্টের দরকার নেই।'; |
| 94 | |
| 95 | // User-defined system prompt (dynamic from settings) |
| 96 | $userPrompt = ! empty($this->systemPrompt) |
| 97 | ? "\n\n## বিশেষ নির্দেশনা (Admin দ্বারা সেট করা):\n{$this->systemPrompt}" |
| 98 | : ''; |
| 99 | |
| 100 | return <<<PROMPT |
| 101 | তুমি {$businessName}-এর একজন বুদ্ধিমান AI Customer Service Assistant। |
| 102 | তুমি বাংলায় কথা বলবে এবং সবসময় বিনয়ী, আন্তরিক ও helpful হবে। |
| 103 | তুমি একজন real মানুষের মতো কথা বলবে — রোবটিক ভাষা ব্যবহার করবে না। |
| 104 | |
| 105 | ## ব্যবসার তথ্য: |
| 106 | - নাম: {$businessName} |
| 107 | - ফোন: {$businessPhone} |
| 108 | - ঠিকানা: {$businessAddress} |
| 109 | |
| 110 | ## আমাদের পণ্য তালিকা: |
| 111 | {$products} |
| 112 | |
| 113 | ## ডেলিভারি চার্জ: |
| 114 | {$shippings} |
| 115 | |
| 116 | ## পেমেন্ট পদ্ধতি: |
| 117 | {$paymentTypes} |
| 118 | |
| 119 | ## তোমার কাজ: |
| 120 | 1. Customer-এর প্রশ্নের উত্তর দাও (product info, price, stock, delivery সম্পর্কে) |
| 121 | 2. Customer order দিতে চাইলে নাম, ঠিকানা, ফোন নম্বর ও পণ্যের নাম জানো |
| 122 | 3. সব তথ্য পেলে "✅ আপনার অর্ডার নেওয়া হয়েছে" বলো এবং summary দাও |
| 123 | 4. Order confirm করতে এই format-এ লেখো: |
| 124 | ORDER_CONFIRM:{"name":"...","phone":"...","address":"...","product":"...","quantity":1} |
| 125 | 5. Delivery সম্পর্কে জানতে চাইলে delivery charge বলো |
| 126 | 6. কখনো database-এ না থাকা পণ্যের কথা বলবে না{$userPrompt} |
| 127 | PROMPT; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Call Google Gemini API |
| 132 | */ |
| 133 | protected function callGemini(string $systemPrompt, array $history): string |
| 134 | { |
| 135 | $model = ! empty($this->model) ? $this->model : 'gemini-1.5-flash'; |
| 136 | $url = "https://generativelanguage.googleapis.com/v1beta/models/{$model}:generateContent?key={$this->apiKey}"; |
| 137 | |
| 138 | // Convert history to Gemini format |
| 139 | $contents = []; |
| 140 | // Add system prompt as first user message |
| 141 | $contents[] = [ |
| 142 | 'role' => 'user', |
| 143 | 'parts' => [['text' => $systemPrompt . "\n\nএখন customer-এর সাথে কথা শুরু করো।"]], |
| 144 | ]; |
| 145 | $contents[] = [ |
| 146 | 'role' => 'model', |
| 147 | 'parts' => [['text' => 'অবশ্যই! আমি সাহায্য করতে প্রস্তুত।']], |
| 148 | ]; |
| 149 | |
| 150 | foreach ($history as $msg) { |
| 151 | $contents[] = [ |
| 152 | 'role' => $msg['role'] === 'assistant' ? 'model' : 'user', |
| 153 | 'parts' => [['text' => $msg['content']]], |
| 154 | ]; |
| 155 | } |
| 156 | |
| 157 | $response = Http::timeout(30)->post($url, [ |
| 158 | 'contents' => $contents, |
| 159 | 'generationConfig' => [ |
| 160 | 'temperature' => 0.7, |
| 161 | 'maxOutputTokens' => 500, |
| 162 | ], |
| 163 | ]); |
| 164 | |
| 165 | if ($response->successful()) { |
| 166 | return $response->json('candidates.0.content.parts.0.text', 'দুঃখিত, উত্তর পাওয়া যায়নি।'); |
| 167 | } |
| 168 | |
| 169 | Log::error('Gemini API Error: ' . $response->body()); |
| 170 | |
| 171 | return 'দুঃখিত, AI সংযোগে সমস্যা হয়েছে।'; |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Call OpenAI (ChatGPT) API |
| 176 | */ |
| 177 | protected function callOpenAI(string $systemPrompt, array $history): string |
| 178 | { |
| 179 | $model = ! empty($this->model) ? $this->model : 'gpt-4o-mini'; |
| 180 | $messages = [['role' => 'system', 'content' => $systemPrompt]]; |
| 181 | |
| 182 | foreach ($history as $msg) { |
| 183 | $messages[] = ['role' => $msg['role'], 'content' => $msg['content']]; |
| 184 | } |
| 185 | |
| 186 | $response = Http::timeout(30) |
| 187 | ->withToken($this->apiKey) |
| 188 | ->post('https://api.openai.com/v1/chat/completions', [ |
| 189 | 'model' => $model, |
| 190 | 'messages' => $messages, |
| 191 | 'max_tokens' => 500, |
| 192 | 'temperature' => 0.7, |
| 193 | ]); |
| 194 | |
| 195 | if ($response->successful()) { |
| 196 | return $response->json('choices.0.message.content', 'দুঃখিত, উত্তর পাওয়া যায়নি।'); |
| 197 | } |
| 198 | |
| 199 | Log::error('OpenAI API Error: ' . $response->body()); |
| 200 | |
| 201 | return 'দুঃখিত, AI সংযোগে সমস্যা হয়েছে।'; |
| 202 | } |
| 203 | |
| 204 | /** |
| 205 | * Call Anthropic Claude API |
| 206 | */ |
| 207 | protected function callClaude(string $systemPrompt, array $history): string |
| 208 | { |
| 209 | $model = ! empty($this->model) ? $this->model : 'claude-3-5-haiku-20241022'; |
| 210 | $messages = []; |
| 211 | |
| 212 | foreach ($history as $msg) { |
| 213 | $messages[] = ['role' => $msg['role'], 'content' => $msg['content']]; |
| 214 | } |
| 215 | |
| 216 | $response = Http::timeout(30) |
| 217 | ->withHeaders([ |
| 218 | 'x-api-key' => $this->apiKey, |
| 219 | 'anthropic-version' => '2023-06-01', |
| 220 | 'Content-Type' => 'application/json', |
| 221 | ]) |
| 222 | ->post('https://api.anthropic.com/v1/messages', [ |
| 223 | 'model' => $model, |
| 224 | 'system' => $systemPrompt, |
| 225 | 'messages' => $messages, |
| 226 | 'max_tokens' => 500, |
| 227 | ]); |
| 228 | |
| 229 | if ($response->successful()) { |
| 230 | return $response->json('content.0.text', 'দুঃখিত, উত্তর পাওয়া যায়নি।'); |
| 231 | } |
| 232 | |
| 233 | Log::error('Claude API Error: ' . $response->body()); |
| 234 | |
| 235 | return 'দুঃখিত, AI সংযোগে সমস্যা হয়েছে।'; |
| 236 | } |
| 237 | } |