import { sdk } from '../sdk'
import { configFile } from '../file-models/config.json'

const { InputSpec, Value } = sdk

// How often to refresh tenants' replenishable credit bucket. The
// bucket size itself is set via "Set Default Tenant Credits" — this
// action just controls WHEN it gets refilled.
//
// Refresh semantics: replenish_balance is RESET to
// tenant_default_credits at each anniversary boundary. Any leftover
// from the previous period is forfeit (use-it-or-lose-it). Purchased
// credits + admin grants live in a SEPARATE bucket
// (tenant_credits.purchased_balance) that's never wiped by refills.
//
// Spend order is replenish first, then purchased — so a tenant
// burns through the refillable bucket each period before touching
// their permanent balance.
//
// Anniversary alignment: refills are anchored to each tenant's
// individual last_replenish_at timestamp (set when they signed up,
// or when the operator first switched this action on). A user who
// signed up at 3:17pm gets their daily refresh at 3:17pm each day,
// not at calendar midnight.
const inputSpec = InputSpec.of({
  period: Value.select({
    name: 'Replenishment period',
    description:
      'How often each tenant\'s replenishable credit bucket gets refilled to the configured default. Set to "off" for a one-time signup grant (Grant\'s use case — tenants are paying customers and don\'t get free daily refills). Set to daily/weekly/monthly for a free-tier-with-daily-allowance model.',
    default: 'off',
    values: {
      off: "Off (one-time signup grant only)",
      daily: 'Daily (every 24 hours)',
      weekly: 'Weekly (every 7 days)',
      monthly: 'Monthly (calendar month)',
    },
  }),
})

export const setReplenishPeriod = sdk.Action.withInput(
  'set-replenish-period',

  async ({ effects }) => ({
    name: 'Set Tenant Credit Replenishment',
    description:
      "How often a tenant's free credit bucket refills (uses Set Default Tenant Credits as the refill amount). Off = no replenishment; their initial signup grant is one-time. Daily/Weekly/Monthly = anniversary-aligned refill of the replenishable bucket. Purchased credits never expire.",
    warning: null,
    allowedStatuses: 'any',
    group: 'Multi-Tenant',
    visibility: 'enabled',
  }),

  inputSpec,

  async ({ effects }) => {
    const config = await configFile.read().once()
    return {
      period:
        (config?.tenant_credit_replenish_period as
          | 'off'
          | 'daily'
          | 'weekly'
          | 'monthly') || 'off',
    }
  },

  async ({ effects, input }) => {
    await configFile.merge(effects, {
      tenant_credit_replenish_period: input.period,
    })
    return null
  },
)