import { pgTable, text, timestamp, index, unique } from 'drizzle-orm/pg-core';
import { createId } from '@paralleldrive/cuid2';

export const POLICY_TYPES = [
  'deviceConfiguration',
  'compliancePolicy',
  'windowsUpdateForBusiness',
  'endpointSecurity',
  'appConfiguration',
  'enrollmentRestriction',
  'conditionalAccess',
] as const;

export type PolicyType = (typeof POLICY_TYPES)[number];

export const policySettings = pgTable(
  'policy_settings',
  {
    id: text('id')
      .primaryKey()
      .$defaultFn(() => createId()),

    tenantId: text('tenant_id').notNull(),

    policyName: text('policy_name').notNull(),

    policyType: text('policy_type').notNull(),

    settingName: text('setting_name').notNull(),

    settingValue: text('setting_value').notNull(),

    graphPolicyId: text('graph_policy_id').notNull(),

    lastSyncedAt: timestamp('last_synced_at', { mode: 'date' })
      .defaultNow()
      .notNull(),

    createdAt: timestamp('created_at', { mode: 'date' }).defaultNow().notNull(),
  },
  (table) => ({
    tenantIdIdx: index('policy_settings_tenant_id_idx').on(table.tenantId),
    settingNameIdx: index('policy_settings_setting_name_idx').on(
      table.settingName
    ),
    // Composite index for sorting performance (pagination + sorting queries)
    sortingIdx: index('policy_settings_sorting_idx').on(
      table.tenantId,
      table.policyType,
      table.settingName
    ),
    // Unique constraint for ON CONFLICT upsert
    upsertUnique: unique('policy_settings_upsert_unique').on(
      table.tenantId,
      table.graphPolicyId,
      table.settingName
    ),
  })
);

export type PolicySetting = typeof policySettings.$inferSelect;
export type NewPolicySetting = typeof policySettings.$inferInsert;