import { sql } from "drizzle-orm";
import { sqliteTable, text, integer, real, uniqueIndex } from "drizzle-orm/sqlite-core";

// ─── Users & roles ──────────────────────────────────────────────────────────

export const userRoles = ["admin", "operator", "viewer"] as const;
export type UserRole = (typeof userRoles)[number];

export const users = sqliteTable("users", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  oidcSub: text("oidc_sub").notNull().unique(),
  email: text("email"),
  name: text("name"),
  role: text("role").$type<UserRole>().notNull().default("viewer"),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
  lastLoginAt: text("last_login_at"),
});

// ─── Audit log ──────────────────────────────────────────────────────────────

export const auditLog = sqliteTable("audit_log", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  actorUserId: integer("actor_user_id").references(() => users.id, { onDelete: "set null" }),
  actorLabel: text("actor_label"), // denormalized name/email snapshot, survives user deletion
  category: text("category").notNull(), // 'secret' | 'ipam' | 'dns' | 'user' | 'integration' | 'task' | ...
  action: text("action").notNull(), // 'create' | 'update' | 'delete' | 'start' | 'stop' | ...
  targetType: text("target_type"),
  targetId: text("target_id"),
  detail: text("detail"), // JSON-encoded free-form context
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Diagnostic log — every outbound call to a DNS provider or integration ──

export const diagLog = sqliteTable("diag_log", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  source: text("source").notNull(), // e.g. 'cloudflare' | 'tailscale' | 'proxmox' | ...
  operation: text("operation").notNull(), // adapter method name, e.g. 'listZones' | 'listDevices'
  ok: integer("ok", { mode: "boolean" }).notNull(),
  latencyMs: integer("latency_ms").notNull(),
  error: text("error"),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Notification queue — pending notifications held during quiet hours ────

export const notificationQueue = sqliteTable("notification_queue", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  title: text("title").notNull(),
  message: text("message").notNull(),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Maintenance windows — alerts about a target are silenced until endsAt ──

export const maintenanceTargetTypes = ["server", "integration", "dns_provider"] as const;
export type MaintenanceTargetType = (typeof maintenanceTargetTypes)[number];

export const maintenanceWindows = sqliteTable("maintenance_windows", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  targetType: text("target_type").$type<MaintenanceTargetType>().notNull(),
  targetId: integer("target_id").notNull(), // polymorphic — no FK; a deleted target's window is simply ignored
  reason: text("reason"),
  startedAt: text("started_at").notNull(), // ISO
  endsAt: text("ends_at").notNull(), // ISO — required: a forgotten open-ended window would silence real problems forever
  createdBy: text("created_by"),
});

// ─── Settings (key/value) ───────────────────────────────────────────────────

export const settings = sqliteTable("settings", {
  key: text("key").primaryKey(),
  value: text("value").notNull(),
  updatedAt: text("updated_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Secrets expiry tracker (ported from Sloth Manager) ────────────────────

export const secretTypes = ["api_token", "ssl_certificate", "password", "generic"] as const;
export type SecretType = (typeof secretTypes)[number];

export const secrets = sqliteTable("secrets", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  name: text("name").notNull(),
  type: text("type").$type<SecretType>().notNull().default("generic"),
  description: text("description"),
  expiryDate: text("expiry_date").notNull(), // ISO date, e.g. 2026-03-01
  warnDays: integer("warn_days").notNull().default(30),
  notes: text("notes"),
  // ssl_certificate secrets only: when set, expiryDate is read from the live certificate on this host:port instead of typed in.
  checkHost: text("check_host"),
  checkPort: integer("check_port"),
  lastCheckedAt: text("last_checked_at"),
  lastCheckError: text("last_check_error"),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
  updatedAt: text("updated_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── IPAM (ported from Sloth Manager) ───────────────────────────────────────

export const ipamEntries = sqliteTable("ipam_entries", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  ipAddress: text("ip_address").notNull().unique(),
  label: text("label"),
  vendor: text("vendor"),
  location: text("location"),
  notes: text("notes"),
  source: text("source"), // null = entered manually; "tailscale" = auto-synced from a Tailscale integration
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
  updatedAt: text("updated_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Integration credentials (encrypted API tokens) ─────────────────────────

export const integrationCredentials = sqliteTable("integration_credentials", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  name: text("name").notNull(),
  encryptedSecret: text("encrypted_secret").notNull(), // AES-256-GCM, see src/crypto.ts
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── DNS providers + record cache (ported from Sloth Manager) ──────────────

export const dnsProviderTypes = [
  "cloudflare",
  "loopia",
  "pihole",
  "azure",
  "cpanel",
  "technitium",
] as const;
export type DnsProviderType = (typeof dnsProviderTypes)[number];

export const dnsProviders = sqliteTable("dns_providers", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  providerType: text("provider_type").$type<DnsProviderType>().notNull(),
  name: text("name").notNull(),
  credentialId: integer("credential_id").references(() => integrationCredentials.id, {
    onDelete: "set null",
  }),
  config: text("config"), // JSON: non-secret provider config (base URL, zone list, etc.)
  enabled: integer("enabled", { mode: "boolean" }).notNull().default(true),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

export const dnsZonesCache = sqliteTable(
  "dns_zones_cache",
  {
    id: integer("id").primaryKey({ autoIncrement: true }),
    providerId: integer("provider_id")
      .notNull()
      .references(() => dnsProviders.id, { onDelete: "cascade" }),
    zoneId: text("zone_id").notNull(), // provider-specific zone identifier
    zoneName: text("zone_name").notNull(),
    syncedAt: text("synced_at"),
  },
  (table) => [uniqueIndex("dns_zones_cache_provider_zone_idx").on(table.providerId, table.zoneId)],
);

export const dnsRecordsCache = sqliteTable("dns_records_cache", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  providerId: integer("provider_id")
    .notNull()
    .references(() => dnsProviders.id, { onDelete: "cascade" }),
  zoneId: text("zone_id").notNull(),
  recordId: text("record_id").notNull(), // provider-specific record identifier
  type: text("type").notNull(), // A, AAAA, CNAME, TXT, MX, ...
  name: text("name").notNull(),
  content: text("content").notNull(),
  ttl: integer("ttl"),
  priority: integer("priority"),
  proxied: integer("proxied", { mode: "boolean" }),
});

// ─── Servers & scheduled tasks (ported from Schedule Task Manager) ─────────

export const proxmoxGuestTypes = ["qemu", "lxc"] as const;
export type ProxmoxGuestTypeCol = (typeof proxmoxGuestTypes)[number];

export const servers = sqliteTable("servers", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  name: text("name").notNull(),
  hostname: text("hostname"),
  osType: text("os_type").notNull().default("linux"),
  description: text("description"),
  apiTokenHash: text("api_token_hash").notNull(),
  apiTokenPrefix: text("api_token_prefix").notNull(),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
  lastSeenAt: text("last_seen_at"),

  // Agent-reported hardware/network snapshot — updated on every agent report.
  ipAddresses: text("ip_addresses"), // JSON string[]
  cpuModel: text("cpu_model"),
  cpuCores: integer("cpu_cores"),
  cpuLoadPercent: real("cpu_load_percent"),
  memTotalBytes: integer("mem_total_bytes"),
  memUsedBytes: integer("mem_used_bytes"),
  disks: text("disks"), // JSON string: {mount, sizeBytes, usedBytes}[]
  listeningPorts: text("listening_ports"), // JSON string: {protocol, port, address, process}[] — what the agent sees bound on the host
  lastPortScan: text("last_port_scan"), // JSON string: summary of the most recent network scan from this app

  // Optional link to a Proxmox VM/LXC — set by an admin, not the agent.
  proxmoxIntegrationId: integer("proxmox_integration_id").references(() => integrations.id, {
    onDelete: "set null",
  }),
  proxmoxNode: text("proxmox_node"),
  proxmoxGuestType: text("proxmox_guest_type").$type<ProxmoxGuestTypeCol>(),
  proxmoxVmid: integer("proxmox_vmid"),

  // Not every server is a Proxmox guest (bare-metal boxes, other hosts) — an
  // admin can hide the "Proxmox link" card on this server's detail page
  // rather than seeing an irrelevant option on every server. Ignored (the
  // card always shows) once a server IS actually linked, so unlinking stays
  // reachable.
  hideProxmoxLink: integer("hide_proxmox_link", { mode: "boolean" }).notNull().default(false),
});

export const scheduledTasks = sqliteTable("scheduled_tasks", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  serverId: integer("server_id")
    .notNull()
    .references(() => servers.id, { onDelete: "cascade" }),
  scheduleType: text("schedule_type").notNull(), // 'cron' | 'systemd_timer' | 'docker' | 'backup' | 'update' | 'n8n_workflow' | 'manual'
  origin: text("origin").notNull().default("agent"), // 'agent' | 'manual' — manual rows are never touched by agent sync
  name: text("name").notNull(),
  command: text("command"),
  scheduleExpression: text("schedule_expression"),
  source: text("source"),
  enabled: integer("enabled", { mode: "boolean" }).notNull().default(true),
  nextRunAt: text("next_run_at"),
  rawMetadata: text("raw_metadata"),
  isStale: integer("is_stale", { mode: "boolean" }).notNull().default(false),
  firstSeenAt: text("first_seen_at")
    .notNull()
    .default(sql`(current_timestamp)`),
  lastSeenAt: text("last_seen_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Server links — admin-page bookmarks per server (Dockge, Webmin, Cockpit, etc.) ─

export const serverLinks = sqliteTable("server_links", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  serverId: integer("server_id")
    .notNull()
    .references(() => servers.id, { onDelete: "cascade" }),
  label: text("label").notNull(),
  url: text("url").notNull(),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// ─── Live integrations (Proxmox, Synology, Semaphore, Tailscale, Gitea, Dockhand) ─

export const integrationTypes = [
  "proxmox",
  "synology",
  "semaphore",
  "tailscale",
  "gitea",
  "dockhand",
] as const;
export type IntegrationType = (typeof integrationTypes)[number];

export const integrations = sqliteTable("integrations", {
  id: integer("id").primaryKey({ autoIncrement: true }),
  type: text("type").$type<IntegrationType>().notNull(),
  name: text("name").notNull(),
  baseUrl: text("base_url").notNull(),
  credentialId: integer("credential_id").references(() => integrationCredentials.id, {
    onDelete: "set null",
  }),
  config: text("config"), // JSON: per-type non-secret config (tailnet name, node name, etc.)
  enabled: integer("enabled", { mode: "boolean" }).notNull().default(true),
  createdAt: text("created_at")
    .notNull()
    .default(sql`(current_timestamp)`),
});

// A port on a server that's either been seen open (by a scan or the agent) or that someone wrote a note about.
// Rows exist only while they carry information: an open port, or one with a label/comment ("reserved").
export const serverPorts = sqliteTable(
  "server_ports",
  {
    id: integer("id").primaryKey({ autoIncrement: true }),
    serverId: integer("server_id")
      .notNull()
      .references(() => servers.id, { onDelete: "cascade" }),
    port: integer("port").notNull(),
    protocol: text("protocol").$type<"tcp" | "udp">().notNull().default("tcp"),
    label: text("label"),
    comment: text("comment"),
    // True when the last network scan connected to it. The agent's view is stored on the server row instead.
    open: integer("open", { mode: "boolean" }).notNull().default(false),
    lastSeenOpenAt: text("last_seen_open_at"),
    updatedAt: text("updated_at")
      .notNull()
      .default(sql`(current_timestamp)`),
  },
  (t) => [uniqueIndex("server_ports_unique").on(t.serverId, t.port, t.protocol)],
);