-- Modulo Equipos (inventario alimentado por el agente GLPI). Idempotente: CREATE TABLE IF NOT EXISTS.
-- Un equipo = una fila en `devices`, upsert por `deviceid` (identificador estable que genera el
-- agente; el hostname cambia). Los componentes se reemplazan completos en cada reporte.
SET NAMES utf8mb4;

-- Tokens que autentican al agente en la ingesta. Se guarda el HASH (sha256), nunca el token.
CREATE TABLE IF NOT EXISTS inventory_tokens (
  id INT AUTO_INCREMENT PRIMARY KEY,
  label VARCHAR(120) NOT NULL,
  token_hash CHAR(64) NOT NULL UNIQUE,
  is_active TINYINT(1) NOT NULL DEFAULT 1,
  last_used_at DATETIME NULL,
  created_by INT NULL,
  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  CONSTRAINT fk_inventory_tokens_user FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE SET NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS devices (
  id INT AUTO_INCREMENT PRIMARY KEY,
  deviceid VARCHAR(255) NOT NULL UNIQUE,
  hostname VARCHAR(190) NULL,
  kind ENUM('desktop','laptop','server','virtual','printer','network','other') NOT NULL DEFAULT 'other',
  manufacturer VARCHAR(160) NULL,
  model VARCHAR(190) NULL,
  serial VARCHAR(160) NULL,
  os_name VARCHAR(190) NULL,
  os_version VARCHAR(120) NULL,
  os_arch VARCHAR(40) NULL,
  domain VARCHAR(190) NULL,
  last_user VARCHAR(190) NULL,
  ip_main VARCHAR(64) NULL,
  mac_main VARCHAR(40) NULL,
  cpu_summary VARCHAR(255) NULL,
  ram_mb INT NULL,
  disk_total_mb BIGINT NULL,
  disk_free_mb BIGINT NULL,
  max_disk_used_pct TINYINT UNSIGNED NULL,
  agent_version VARCHAR(80) NULL,
  tag VARCHAR(120) NULL,
  itemtype VARCHAR(60) NULL,
  first_seen DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  last_seen DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  -- Baja logica (conserva historial); un nuevo reporte NO reactiva un equipo dado de baja.
  status ENUM('active','retired') NOT NULL DEFAULT 'active',
  assigned_user_id INT NULL,
  department_id INT NULL,
  notes TEXT NULL,
  raw_file VARCHAR(255) NULL,
  extra_json LONGTEXT NULL,
  KEY idx_devices_hostname (hostname),
  KEY idx_devices_last_seen (last_seen),
  CONSTRAINT fk_devices_user FOREIGN KEY (assigned_user_id) REFERENCES users(id) ON DELETE SET NULL,
  CONSTRAINT fk_devices_department FOREIGN KEY (department_id) REFERENCES departments(id) ON DELETE SET NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_cpus (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  name VARCHAR(255) NULL,
  manufacturer VARCHAR(120) NULL,
  cores INT NULL,
  threads INT NULL,
  speed_mhz INT NULL,
  KEY idx_device_cpus_device (device_id),
  CONSTRAINT fk_device_cpus_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_memories (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  slot VARCHAR(80) NULL,
  capacity_mb INT NULL,
  type VARCHAR(60) NULL,
  speed VARCHAR(40) NULL,
  manufacturer VARCHAR(120) NULL,
  serial VARCHAR(120) NULL,
  KEY idx_device_memories_device (device_id),
  CONSTRAINT fk_device_memories_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_disks (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  name VARCHAR(190) NULL,
  model VARCHAR(190) NULL,
  manufacturer VARCHAR(120) NULL,
  type VARCHAR(60) NULL,
  interface VARCHAR(60) NULL,
  size_mb BIGINT NULL,
  serial VARCHAR(160) NULL,
  KEY idx_device_disks_device (device_id),
  CONSTRAINT fk_device_disks_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_volumes (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  mount VARCHAR(190) NULL,
  label VARCHAR(190) NULL,
  filesystem VARCHAR(60) NULL,
  type VARCHAR(60) NULL,
  total_mb BIGINT NULL,
  free_mb BIGINT NULL,
  KEY idx_device_volumes_device (device_id),
  CONSTRAINT fk_device_volumes_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_networks (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  description VARCHAR(255) NULL,
  mac VARCHAR(40) NULL,
  ip VARCHAR(64) NULL,
  mask VARCHAR(64) NULL,
  gateway VARCHAR(64) NULL,
  type VARCHAR(60) NULL,
  status VARCHAR(40) NULL,
  KEY idx_device_networks_device (device_id),
  CONSTRAINT fk_device_networks_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_monitors (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  manufacturer VARCHAR(120) NULL,
  model VARCHAR(190) NULL,
  serial VARCHAR(120) NULL,
  KEY idx_device_monitors_device (device_id),
  CONSTRAINT fk_device_monitors_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS device_software (
  id INT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  name VARCHAR(255) NOT NULL,
  version VARCHAR(120) NULL,
  publisher VARCHAR(190) NULL,
  install_date VARCHAR(40) NULL,
  KEY idx_device_software_device (device_id),
  KEY idx_device_software_name (name(120)),
  CONSTRAINT fk_device_software_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- Diff entre reportes consecutivos (RAM que bajo, disco nuevo, software instalado/desinstalado).
CREATE TABLE IF NOT EXISTS device_changes (
  id BIGINT AUTO_INCREMENT PRIMARY KEY,
  device_id INT NOT NULL,
  change_type VARCHAR(40) NOT NULL,
  field VARCHAR(120) NULL,
  old_value TEXT NULL,
  new_value TEXT NULL,
  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  KEY idx_device_changes_device (device_id, created_at),
  CONSTRAINT fk_device_changes_device FOREIGN KEY (device_id) REFERENCES devices(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;