-- NIS2 Migration 012: Consulting Firms (Studio di Consulenza)
-- Database: nis2_agile_db
-- Data: 2026-04-11
-- Idempotente: rieseguibile in sicurezza.

USE nis2_agile_db;

-- 1. Anagrafica studi di consulenza cybersecurity / NIS2 (idempotente)
CREATE TABLE IF NOT EXISTS consulting_firms (
    id              INT AUTO_INCREMENT PRIMARY KEY,
    name            VARCHAR(255) NOT NULL COMMENT 'Ragione sociale studio',
    vat_number      VARCHAR(20)  NULL,
    fiscal_code     VARCHAR(16)  NULL,
    forma_giuridica VARCHAR(50)  NULL,
    address         VARCHAR(255) NULL,
    city            VARCHAR(100) NULL,
    province        VARCHAR(2)   NULL,
    cap             VARCHAR(5)   NULL,
    phone           VARCHAR(30)  NULL,
    pec             VARCHAR(255) NULL,
    website         VARCHAR(255) NULL,
    plan            ENUM('starter','professional','enterprise') NOT NULL DEFAULT 'professional',
    max_organizations INT NOT NULL DEFAULT 50,
    max_users       INT NOT NULL DEFAULT 5,
    status          ENUM('active','trial','suspended','inactive') NOT NULL DEFAULT 'active',
    created_by      INT NULL,
    created_at      DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at      DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX idx_vat (vat_number),
    INDEX idx_status (status)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- 2. ALTER users.consulting_firm_id (idempotente)
SET @col := (SELECT COUNT(*) FROM information_schema.COLUMNS
             WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users' AND COLUMN_NAME = 'consulting_firm_id');
SET @sql := IF(@col = 0,
    'ALTER TABLE users ADD COLUMN consulting_firm_id INT NULL AFTER role',
    'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @idx := (SELECT COUNT(*) FROM information_schema.STATISTICS
             WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'users' AND INDEX_NAME = 'idx_user_firm');
SET @sql := IF(@idx = 0,
    'ALTER TABLE users ADD INDEX idx_user_firm (consulting_firm_id)',
    'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

-- 3. ALTER organizations.consulting_firm_id (idempotente)
SET @col := (SELECT COUNT(*) FROM information_schema.COLUMNS
             WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'organizations' AND COLUMN_NAME = 'consulting_firm_id');
SET @sql := IF(@col = 0,
    'ALTER TABLE organizations ADD COLUMN consulting_firm_id INT NULL',
    'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;

SET @idx := (SELECT COUNT(*) FROM information_schema.STATISTICS
             WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'organizations' AND INDEX_NAME = 'idx_org_firm');
SET @sql := IF(@idx = 0,
    'ALTER TABLE organizations ADD INDEX idx_org_firm (consulting_firm_id)',
    'SELECT 1');
PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;