-- Gandalf Network Monitor – Database Schema
-- Run on MariaDB LXC 149 (10.10.10.50)

CREATE DATABASE IF NOT EXISTS gandalf
  CHARACTER SET utf8mb4
  COLLATE utf8mb4_unicode_ci;

USE gandalf;

-- ── Network events (open and resolved alerts) ─────────────────────────
CREATE TABLE IF NOT EXISTS network_events (
  id                  INT AUTO_INCREMENT PRIMARY KEY,
  event_type          VARCHAR(60)  NOT NULL,
  severity            ENUM('critical','warning','info') NOT NULL DEFAULT 'warning',
  source_type         VARCHAR(20)  NOT NULL,           -- 'prometheus', 'unifi', 'ping'
  target_name         VARCHAR(255) NOT NULL,           -- hostname or device name
  target_detail       VARCHAR(255) NOT NULL DEFAULT '', -- interface name, device type, IP
  description         TEXT,
  first_seen          TIMESTAMP    DEFAULT CURRENT_TIMESTAMP,
  last_seen           TIMESTAMP    DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  resolved_at         TIMESTAMP    NULL,
  consecutive_failures INT          NOT NULL DEFAULT 1,
  ticket_id           VARCHAR(20)  NULL,

  INDEX idx_active   (resolved_at),
  INDEX idx_target   (target_name, target_detail),
  INDEX idx_type     (event_type)
) ENGINE=InnoDB;

-- ── Suppression rules ─────────────────────────────────────────────────
CREATE TABLE IF NOT EXISTS suppression_rules (
  id            INT AUTO_INCREMENT PRIMARY KEY,
  target_type   VARCHAR(50)  NOT NULL,   -- 'host', 'interface', 'unifi_device', 'all'
  target_name   VARCHAR(255) NOT NULL DEFAULT '',
  target_detail VARCHAR(255) NOT NULL DEFAULT '',
  reason        TEXT         NOT NULL,
  suppressed_by VARCHAR(255) NOT NULL,
  created_at    TIMESTAMP    DEFAULT CURRENT_TIMESTAMP,
  expires_at    TIMESTAMP    NULL,       -- NULL = manual (never auto-expires)
  active        BOOLEAN      NOT NULL DEFAULT TRUE,

  INDEX idx_active_exp (active, expires_at)
) ENGINE=InnoDB;

-- ── Monitor state (key/value store for snapshot + baseline) ───────────
CREATE TABLE IF NOT EXISTS monitor_state (
  key_name   VARCHAR(100) PRIMARY KEY,
  value      MEDIUMTEXT   NOT NULL,
  updated_at TIMESTAMP    DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
) ENGINE=InnoDB;