Add Groq as AI provider + new inline AI tasks, extend database to support more prompt types

inventory-server/src/services/ai/prompts/promptLoader.js

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+/**
+ * Prompt Loader
+ *
+ * Utilities to load AI prompts from the ai_prompts PostgreSQL table.
+ * Supports loading prompts by base type (e.g., 'name_validation' loads
+ * name_validation_system, name_validation_general, and optionally
+ * name_validation_company_specific).
+ */
+
+/**
+ * Load a single prompt by exact type
+ * @param {Object} pool - PostgreSQL pool
+ * @param {string} promptType - Exact prompt type (e.g., 'name_validation_system')
+ * @param {string} [company] - Company identifier (for company_specific types)
+ * @returns {Promise<string|null>} Prompt text or null if not found
+ */
+async function loadPromptByType(pool, promptType, company = null) {
+  try {
+    let result;
+
+    if (company) {
+      result = await pool.query(
+        'SELECT prompt_text FROM ai_prompts WHERE prompt_type = $1 AND company = $2',
+        [promptType, company]
+      );
+    } else {
+      result = await pool.query(
+        'SELECT prompt_text FROM ai_prompts WHERE prompt_type = $1 AND company IS NULL',
+        [promptType]
+      );
+    }
+
+    return result.rows[0]?.prompt_text || null;
+  } catch (error) {
+    console.error(`[PromptLoader] Error loading ${promptType} prompt:`, error.message);
+    return null;
+  }
+}
+
+/**
+ * Load all prompts for a task type (system, general, and optionally company-specific)
+ *
+ * @param {Object} pool - PostgreSQL pool
+ * @param {string} baseType - Base type name (e.g., 'name_validation', 'description_validation')
+ * @param {string|null} [company] - Optional company ID for company-specific prompts
+ * @returns {Promise<{system: string|null, general: string|null, companySpecific: string|null}>}
+ */
+async function loadPromptsByType(pool, baseType, company = null) {
+  const systemType = `${baseType}_system`;
+  const generalType = `${baseType}_general`;
+  const companyType = `${baseType}_company_specific`;
+
+  // Load system and general prompts in parallel
+  const [system, general] = await Promise.all([
+    loadPromptByType(pool, systemType),
+    loadPromptByType(pool, generalType)
+  ]);
+
+  // Load company-specific prompt if company is provided
+  let companySpecific = null;
+  if (company) {
+    companySpecific = await loadPromptByType(pool, companyType, company);
+  }
+
+  return {
+    system,
+    general,
+    companySpecific
+  };
+}
+
+/**
+ * Load name validation prompts
+ * @param {Object} pool - PostgreSQL pool
+ * @param {string|null} [company] - Optional company ID
+ * @returns {Promise<{system: string|null, general: string|null, companySpecific: string|null}>}
+ */
+async function loadNameValidationPrompts(pool, company = null) {
+  return loadPromptsByType(pool, 'name_validation', company);
+}
+
+/**
+ * Load description validation prompts
+ * @param {Object} pool - PostgreSQL pool
+ * @param {string|null} [company] - Optional company ID
+ * @returns {Promise<{system: string|null, general: string|null, companySpecific: string|null}>}
+ */
+async function loadDescriptionValidationPrompts(pool, company = null) {
+  return loadPromptsByType(pool, 'description_validation', company);
+}
+
+/**
+ * Load sanity check prompts (no company-specific variant)
+ * @param {Object} pool - PostgreSQL pool
+ * @returns {Promise<{system: string|null, general: string|null, companySpecific: null}>}
+ */
+async function loadSanityCheckPrompts(pool) {
+  return loadPromptsByType(pool, 'sanity_check', null);
+}
+
+/**
+ * Load bulk validation prompts (GPT-5 validation)
+ * @param {Object} pool - PostgreSQL pool
+ * @param {string|null} [company] - Optional company ID
+ * @returns {Promise<{system: string|null, general: string|null, companySpecific: string|null}>}
+ */
+async function loadBulkValidationPrompts(pool, company = null) {
+  return loadPromptsByType(pool, 'bulk_validation', company);
+}
+
+/**
+ * Load bulk validation prompts for multiple companies at once
+ * @param {Object} pool - PostgreSQL pool
+ * @param {string[]} companyIds - Array of company IDs
+ * @returns {Promise<{system: string|null, general: string|null, companyPrompts: Map<string, string>}>}
+ */
+async function loadBulkValidationPromptsForCompanies(pool, companyIds = []) {
+  // Load system and general prompts
+  const [system, general] = await Promise.all([
+    loadPromptByType(pool, 'bulk_validation_system'),
+    loadPromptByType(pool, 'bulk_validation_general')
+  ]);
+
+  // Load company-specific prompts for all provided companies
+  const companyPrompts = new Map();
+
+  if (companyIds.length > 0) {
+    try {
+      const result = await pool.query(
+        `SELECT company, prompt_text FROM ai_prompts
+         WHERE prompt_type = 'bulk_validation_company_specific'
+         AND company = ANY($1)`,
+        [companyIds]
+      );
+
+      for (const row of result.rows) {
+        companyPrompts.set(row.company, row.prompt_text);
+      }
+    } catch (error) {
+      console.error('[PromptLoader] Error loading company-specific prompts:', error.message);
+    }
+  }
+
+  return {
+    system,
+    general,
+    companyPrompts
+  };
+}
+
+/**
+ * Validate that required prompts exist, throw error if missing
+ * @param {Object} prompts - Prompts object from loadPromptsByType
+ * @param {string} baseType - Base type for error messages
+ * @param {Object} options - Validation options
+ * @param {boolean} [options.requireSystem=true] - Require system prompt
+ * @param {boolean} [options.requireGeneral=true] - Require general prompt
+ * @throws {Error} If required prompts are missing
+ */
+function validateRequiredPrompts(prompts, baseType, options = {}) {
+  const { requireSystem = true, requireGeneral = true } = options;
+  const missing = [];
+
+  if (requireSystem && !prompts.system) {
+    missing.push(`${baseType}_system`);
+  }
+
+  if (requireGeneral && !prompts.general) {
+    missing.push(`${baseType}_general`);
+  }
+
+  if (missing.length > 0) {
+    throw new Error(
+      `Missing required AI prompts: ${missing.join(', ')}. ` +
+      `Please add these prompts in Settings > AI Validation Prompts.`
+    );
+  }
+}
+
+module.exports = {
+  // Core loader
+  loadPromptByType,
+  loadPromptsByType,
+
+  // Task-specific loaders
+  loadNameValidationPrompts,
+  loadDescriptionValidationPrompts,
+  loadSanityCheckPrompts,
+  loadBulkValidationPrompts,
+  loadBulkValidationPromptsForCompanies,
+
+  // Validation
+  validateRequiredPrompts
+};