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| 1 | <?php |
| 2 | |
| 3 | namespace App\Http\Services; |
| 4 | |
| 5 | use App\Http\Models\CompanyVapiConfig; |
| 6 | use App\Http\Models\RolePlayConfig; |
| 7 | use App\Http\Models\UserVapiConfig; |
| 8 | use Illuminate\Support\Facades\Cache; |
| 9 | |
| 10 | /** |
| 11 | * Service for managing VAPI configuration with 3-level hierarchy. |
| 12 | * |
| 13 | * Resolves configuration by deep-merging: |
| 14 | * Global defaults → Company overrides → User overrides |
| 15 | * |
| 16 | * Uses the existing RolePlayConfig.vapi_defaults as the global store, |
| 17 | * with CompanyVapiConfig and UserVapiConfig for override layers. |
| 18 | */ |
| 19 | class VapiConfigService |
| 20 | { |
| 21 | /** |
| 22 | * Cache TTL in seconds for merged config. |
| 23 | */ |
| 24 | private const CACHE_TTL_SECONDS = 60; |
| 25 | |
| 26 | /** |
| 27 | * Default VAPI configuration used as fallback when no global config exists. |
| 28 | * |
| 29 | * @var array<string, mixed> |
| 30 | */ |
| 31 | private const FALLBACK_DEFAULTS = [ |
| 32 | 'transcriber' => [ |
| 33 | 'provider' => 'deepgram', |
| 34 | 'model' => 'nova-2', |
| 35 | 'language' => 'en-US', |
| 36 | ], |
| 37 | 'model' => [ |
| 38 | 'available_models' => [ |
| 39 | ['value' => 'gemini', 'label' => 'Gemini', 'provider' => 'google', 'model_id' => 'gemini-3-flash-preview', 'enabled' => true], |
| 40 | ['value' => 'openai5', 'label' => 'GPT 5', 'provider' => 'openai', 'model_id' => 'gpt-5', 'enabled' => true], |
| 41 | ['value' => 'openai5nano', 'label' => 'GPT 5 Nano', 'provider' => 'openai', 'model_id' => 'gpt-5-nano', 'enabled' => true], |
| 42 | ['value' => 'openai', 'label' => 'OpenAI 4o', 'provider' => 'openai', 'model_id' => 'gpt-4o', 'enabled' => true], |
| 43 | ], |
| 44 | 'default_model' => 'gemini-3-flash-preview', |
| 45 | 'temperature' => 1, |
| 46 | ], |
| 47 | 'voice' => [ |
| 48 | 'provider' => 'vapi', |
| 49 | ], |
| 50 | 'assistant' => [ |
| 51 | 'name' => 'FlyMSG Assistant', |
| 52 | 'silence_timeout_seconds' => 10, |
| 53 | 'response_delay_seconds' => 2, |
| 54 | 'start_speaking_wait_seconds' => 0.7, |
| 55 | 'end_call_message' => 'Goodbye.', |
| 56 | 'recording_format' => 'mp3', |
| 57 | ], |
| 58 | 'first_messages' => [ |
| 59 | 'Hello, this is {name}.', |
| 60 | 'Hello?', |
| 61 | 'Hi, this is {name}.', |
| 62 | 'Good day, this is {name}.', |
| 63 | 'Yes, no problem. Hello, this is {name}.', |
| 64 | 'Hello, what can I do for you?', |
| 65 | '{name} here, how can I help you?', |
| 66 | ], |
| 67 | ]; |
| 68 | |
| 69 | /** |
| 70 | * Get the merged VAPI config for a user (global → company → user). |
| 71 | * |
| 72 | * @param string $userId |
| 73 | * @param string|null $companyId |
| 74 | * @return array<string, mixed> |
| 75 | */ |
| 76 | public function getMergedConfig(string $userId, ?string $companyId): array |
| 77 | { |
| 78 | $cacheKey = "vapi_config_{$userId}"; |
| 79 | |
| 80 | $tags = ['vapi_config']; |
| 81 | if ($companyId) { |
| 82 | $tags[] = "vapi_company_{$companyId}"; |
| 83 | } |
| 84 | |
| 85 | return Cache::tags($tags)->remember($cacheKey, self::CACHE_TTL_SECONDS, function () use ($userId, $companyId) { |
| 86 | $globalDefaults = $this->getGlobalDefaults(); |
| 87 | |
| 88 | $companyOverrides = []; |
| 89 | if ($companyId) { |
| 90 | $companyOverrides = $this->getCompanyOverrides($companyId); |
| 91 | } |
| 92 | |
| 93 | $userOverrides = $this->getUserOverrides($userId); |
| 94 | |
| 95 | return array_replace_recursive($globalDefaults, $companyOverrides, $userOverrides); |
| 96 | }); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Get the global VAPI defaults from RolePlayConfig. |
| 101 | * |
| 102 | * @return array<string, mixed> |
| 103 | */ |
| 104 | public function getGlobalDefaults(): array |
| 105 | { |
| 106 | $config = RolePlayConfig::getGlobal(); |
| 107 | $stored = $config?->vapi_defaults; |
| 108 | |
| 109 | if (! $stored) { |
| 110 | return self::FALLBACK_DEFAULTS; |
| 111 | } |
| 112 | |
| 113 | // Ensure stored is an array (could be a string if corrupted in DB) |
| 114 | if (! is_array($stored)) { |
| 115 | return self::FALLBACK_DEFAULTS; |
| 116 | } |
| 117 | |
| 118 | // Deep-merge with fallback defaults to fill any missing fields |
| 119 | $merged = array_replace_recursive(self::FALLBACK_DEFAULTS, $stored); |
| 120 | |
| 121 | // Guard against 'model' being overwritten by a scalar (e.g. from transcriber.model leaking) |
| 122 | if (! is_array($merged['model'] ?? null)) { |
| 123 | $merged['model'] = self::FALLBACK_DEFAULTS['model']; |
| 124 | } |
| 125 | |
| 126 | // Special handling: if available_models is empty, use fallback |
| 127 | if (empty($merged['model']['available_models'])) { |
| 128 | $merged['model']['available_models'] = self::FALLBACK_DEFAULTS['model']['available_models']; |
| 129 | } |
| 130 | |
| 131 | // Default temperature when missing on legacy stored config. |
| 132 | if (! isset($merged['model']['temperature']) || ! is_numeric($merged['model']['temperature'])) { |
| 133 | $merged['model']['temperature'] = self::FALLBACK_DEFAULTS['model']['temperature']; |
| 134 | } |
| 135 | |
| 136 | // Special handling: if first_messages is empty, use fallback |
| 137 | if (empty($merged['first_messages'])) { |
| 138 | $merged['first_messages'] = self::FALLBACK_DEFAULTS['first_messages']; |
| 139 | } |
| 140 | |
| 141 | return $merged; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Update the global VAPI defaults in RolePlayConfig. |
| 146 | * |
| 147 | * @param array<string, mixed> $data |
| 148 | * @return array<string, mixed> |
| 149 | */ |
| 150 | public function updateGlobalDefaults(array $data): array |
| 151 | { |
| 152 | $config = RolePlayConfig::getGlobal(); |
| 153 | |
| 154 | if (!$config) { |
| 155 | $config = RolePlayConfig::create([ |
| 156 | 'type' => 'global', |
| 157 | 'vapi_defaults' => $data, |
| 158 | ]); |
| 159 | } else { |
| 160 | $config->updateSection('vapi_defaults', $data); |
| 161 | } |
| 162 | |
| 163 | $this->invalidateAllVapiConfigCache(); |
| 164 | |
| 165 | return $config->fresh()->vapi_defaults; |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Get company-level VAPI overrides. |
| 170 | * |
| 171 | * @param string $companyId |
| 172 | * @return array<string, mixed> |
| 173 | */ |
| 174 | public function getCompanyOverrides(string $companyId): array |
| 175 | { |
| 176 | $config = CompanyVapiConfig::forCompany($companyId); |
| 177 | |
| 178 | return $config?->vapi_overrides ?? []; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Update company-level VAPI overrides (upsert). |
| 183 | * |
| 184 | * @param string $companyId |
| 185 | * @param array<string, mixed> $data |
| 186 | * @return array<string, mixed> |
| 187 | */ |
| 188 | public function updateCompanyOverrides(string $companyId, array $data): array |
| 189 | { |
| 190 | $config = CompanyVapiConfig::updateOrCreate( |
| 191 | ['company_id' => $companyId], |
| 192 | ['vapi_overrides' => $data] |
| 193 | ); |
| 194 | |
| 195 | $this->invalidateCompanyUsersCache($companyId); |
| 196 | |
| 197 | return $config->fresh()->vapi_overrides; |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Delete company-level VAPI overrides. |
| 202 | * |
| 203 | * @param string $companyId |
| 204 | * @return void |
| 205 | */ |
| 206 | public function deleteCompanyOverrides(string $companyId): void |
| 207 | { |
| 208 | CompanyVapiConfig::where('company_id', $companyId)->delete(); |
| 209 | $this->invalidateCompanyUsersCache($companyId); |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Get user-level VAPI overrides. |
| 214 | * |
| 215 | * @param string $userId |
| 216 | * @return array<string, mixed> |
| 217 | */ |
| 218 | public function getUserOverrides(string $userId): array |
| 219 | { |
| 220 | $config = UserVapiConfig::forUser($userId); |
| 221 | |
| 222 | return $config?->vapi_overrides ?? []; |
| 223 | } |
| 224 | |
| 225 | /** |
| 226 | * Update user-level VAPI overrides (upsert). |
| 227 | * |
| 228 | * @param string $userId |
| 229 | * @param array<string, mixed> $data |
| 230 | * @return array<string, mixed> |
| 231 | */ |
| 232 | public function updateUserOverrides(string $userId, array $data): array |
| 233 | { |
| 234 | $config = UserVapiConfig::updateOrCreate( |
| 235 | ['user_id' => $userId], |
| 236 | ['vapi_overrides' => $data] |
| 237 | ); |
| 238 | |
| 239 | Cache::tags(['vapi_config'])->forget("vapi_config_{$userId}"); |
| 240 | |
| 241 | return $config->fresh()->vapi_overrides; |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Delete user-level VAPI overrides. |
| 246 | * |
| 247 | * @param string $userId |
| 248 | * @return void |
| 249 | */ |
| 250 | public function deleteUserOverrides(string $userId): void |
| 251 | { |
| 252 | UserVapiConfig::where('user_id', $userId)->delete(); |
| 253 | Cache::tags(['vapi_config'])->forget("vapi_config_{$userId}"); |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Preview the merged config for a specific user (admin use). |
| 258 | * |
| 259 | * Bypasses cache to show the current resolved state. |
| 260 | * |
| 261 | * @param string $userId |
| 262 | * @param string|null $companyId |
| 263 | * @return array<string, mixed> |
| 264 | */ |
| 265 | public function previewMergedConfig(string $userId, ?string $companyId): array |
| 266 | { |
| 267 | $globalDefaults = $this->getGlobalDefaults(); |
| 268 | |
| 269 | $companyOverrides = []; |
| 270 | if ($companyId) { |
| 271 | $companyOverrides = $this->getCompanyOverrides($companyId); |
| 272 | } |
| 273 | |
| 274 | $userOverrides = $this->getUserOverrides($userId); |
| 275 | |
| 276 | return array_replace_recursive($globalDefaults, $companyOverrides, $userOverrides); |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Invalidate all VAPI config caches. |
| 281 | * |
| 282 | * Called when global defaults change, since all users are affected. |
| 283 | * |
| 284 | * @return void |
| 285 | */ |
| 286 | private function invalidateAllVapiConfigCache(): void |
| 287 | { |
| 288 | Cache::tags(['vapi_config'])->flush(); |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * Invalidate cached VAPI configs for all users in a company. |
| 293 | * |
| 294 | * @param string $companyId |
| 295 | * @return void |
| 296 | */ |
| 297 | private function invalidateCompanyUsersCache(string $companyId): void |
| 298 | { |
| 299 | Cache::tags(["vapi_company_{$companyId}"])->flush(); |
| 300 | } |
| 301 | } |